StemCell Therapy

If you hit enough specific diseases, youre getting at the core aging components that are common to all of them, Church, a Wyss core faculty member, said in an interview Monday. Gene therapy gives you a testable therapy at scale in mice. And we can move from mice to dogs and then to humans. Were focusing on the reversal of age-related diseases so well be more healthy and youthful later in life.

The research is part of a broader emerging field, sometimes called geroscience. Its advocates believe that the best way to treat a variety of illnesses from cancers and heart disease to Alzheimers and macular degeneration is to attack the aging process itself.

Were taking a holistic approach, said Noah Davidsohn, a former research scientist in Churchs lab who is first author of the study. Rather than attack specific diseases, were trying to make patients generally healthier and, in the process, getting rid of as many age-related diseases as possible. Nobody wants to be old and in a wheelchair and not doing anything.

Bostons biomedical hub has become a hotbed of geroscience research.

Last winter, 16 of the worlds top longevity scientists, including Harvard scientist David Sinclair, professor of genetics and director of the Paul F. Glenn Center for the Biology of Aging, formed a Boston-based academy that will seek to spotlight medical research on extending human life and developing drugs to slow the aging process. The nonprofit Academy for Health and Lifespan Research will share research and lobby governments in the United States, Europe, and elsewhere to increase funding and create new paths to approve age-slowing therapies.

Previous studies in the field have also sought to slow aging and extend healthy life spans through small molecules that increase blood flow and endurance, or weed out zombie cells that send out toxins causing age-related maladies. But the Wyss Institute is the first to use therapy that combines genes to boost protein levels that diminish with aging. The genes were selected from a database developed over the past decade at Churchs lab.

We looked at the ones that had the biggest impact individually and then wanted to see if they would work more effectively in pairs and triples, Church said. Such an approach, he said, had the greatest potential to target multiple diseases through a one-and-done injection into the blood or muscle, a simple procedure akin to getting an influenza vaccine shot.

When deployed against obesity, type II diabetes, heart failure, and renal failure, a single formulation ... was able to treat all four diseases, according to the study published in PNAS. These results emphasize the promise of gene therapy for treating diverse age-related ailments, and demonstrate a new approach of combination gene therapy that may improve healthspan and longevity by addressing multiple diseases at once.

San Diego-based biotech startup Rejuvenate Bio, founded by Church and a pair of coauthors of the PNAS study, Davidsohn and Daniel Oliver, is pursuing a gene therapy to fight age-related diseases. The company has already begun working with the Cummings School of Veterinary Medicine at Tufts University in North Grafton to test the gene therapy combination in dogs.

Davidsohn, chief technology officer at Rejuvenate, said the company is focused for now on developing and marketing a treatment that can extend the health span of dogs, which can suffer from a range of age-related illnesses including heart and kidney problems, obesity, dementia, and hearing and vision loss similar to those afflicting humans.

His own 5-year-old dog, Bear, whom Davidsohn adopted while working in the Wyss Institute lab, was an inspiration and now holds the honorary title of chief inspiration officer at Rejuvenate. The company was launched in stealth mode about a year ago and now has eight employees.

While dogs will be an important market in their own right for the combination gene therapy, Davidsohn said, We would be happy if this ended up in humans.

Church said testing the experimental therapy in dogs is likely to take about two years. Then, if regulators approve it, clinical trials could begin in humans. But even if all goes well, he said, the gene therapy probably wont be available as a marketed product for more than a decade.

By then, he said, the cost of a gene therapy which now can top $1 million per patient for rare diseases could drop to thousands of dollars per patient in what would be a much larger market to treat multiple age-related diseases.

Some supporters of age-slowing research, such as Jay Olshansky, public health professor at the University of Illinois at Chicago, have cautioned against expectations that scientists can radically lengthen life spans. Instead, they believe, the goal should be, as Olshansky puts it, pushing out the red zone, the time of frailty and disability at the end of life.

Church, however, has a more ambitious vision.

The important thing is getting good at age reversal, he said. If age reversal truly works, there is no upper limit on how long healthy lives can be extended.

Robert Weisman can be reached at robert.weisman @globe.com. Follow him on Twitter @GlobeRobW.

Correction: An earlier version of this story incorrectly characterized the status of the collaboration between Rejuvenate Bio and George Churchs Wyss Institute Lab.

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Harvard study advances gene therapy in fighting age-related diseases - The Boston Globe

The larger contract manufacturing and development organization (CDMO) have developed an appetite for acquiring capabilities in the cell and gene therapy space.

For instance, Lonza filled a strategic gap in its own portfolio through the acquisition of PharmaCell providing it with a base in the Netherlands with cell and gene manufacturing capabilities.

Rival CDMOs have followed suit, with large sums changing hands in the deals that saw Thermo Fisher takeover gene therapy specialist Brammer Bio and Catalent acquire Paragon.

With increased competition in the space, some have raised concerns about the numbers of talent needed to serve this space and the challenges of keeping them once hired.

BioPharma-Reporter (BPR) spoke to Marc Funk (MF), CEO of Lonza, to gain a leadership perspective about the challenges of recruiting in the space and more broadly about the challenges facing cell and gene therapy manufacture.

BPR: Cell and gene therapy space is developing quickly how are you ensuring that talent are brought in and retained?

MF: We need to be aware of staff retention, but it's not necessarily specific to the cell and gene therapy space. The focus is training the right talent, bringing them on board, and helping the industry cope with the unmet need in cell and gene therapy. In this regard, we are not different to anybody else, but what we can say is that we do not have talent erosion people that come to our sites are happy to stay.

BPR: What are the main challenges in cell and gene therapy?

MF:The major challenge is how to make sure that the industry brings robust, scalable, industrialized manufacturing processes, as fast as possible. That's the main problem.

We are addressing this by capitalizing on our knowledge in mammalian technology, bringing in more innovation: for example, automation for autologous manufacturing and moving from 2D stacks to 3D bioreactors for allogeneic and viral vector manufacturing.

BPR: How important is automation for cell and gene therapy manufacture?

MF: For cell and gene therapies, this is an essential move that has to be accelerated. There are certain processes today that are manual but have no reason to be. That's one of the critical barriers to making the manufacturing of these medicines more robust.

BPR: Are you looking at hiring to bring in experts to improve automations? For instance, experts in AI or machine learning?

MF: We are currently doing that consciously and with high expectations that this will bring better solutions.

BPR: In particular, how do you work to entice talent to work at the Visp site?

MF: The first thing is to have a great project one that young talent can identify with. Within Lonza, that means attracting people who wish to help deliver better medicines in this world.

The second thing is to make sure that we build the right infrastructure here, in partnership with the local communities. We work closely with the authorities and schools in Valais (the Swiss canton where Visp is located) to offer apprenticeships and develop local talent. For employees coming from outside the local area, were working to make sure that the right infrastructure is in place in the region around the site, such as childcare and support for people coming to Switzerland for the first time. All of this is starting to take shape today.

BPR: How is Lonza preparing for the future?

MF: I think that the move we have made to develop the biopark here in Visp redesigning our plant and our business model is already a lesson in how we want to be set up for the future. Although we acknowledge that how we manufacture biologics will change, even within the next two to three years.

The way we are designing the plant today is set up to respond to the changes coming, with space for expansion and the flexibility that changing technology requires. But there are some things we need to do even better now, for example, improving downstream processes. That's an area that we, and the industry in general, is looking at to make sure that we have much better productivity. In addition, the industry needs to be able to bring molecules in clinical development through at a much faster pace than today.

Marc Funk has been CEO at Lonza since March 2019 and a member of the executive committee since April 2012. Prior to his time at Lonza, Funk held leadership roles at Merck Serono and Geneprot.

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Automating cell and gene therapy manufacture 'has to be accelerated', says Lonza CEO - BioPharma-Reporter.com

A new protein that can enhance the accuracy of CRISPR gene therapy was recently developed by researchers from City University of Hong Kong (CityU) and Karolinska Institutet. This work, published in the Proceedings of the National Academy of Sciences, could potentially have a strong impact on how gene therapies are administered in the future.

CRISPR-Cas9, often referred to as just CRISPR, is a powerful gene-editing technology that has the potential to treat a myriad of genetic diseases such as beta-thalassemia and sickle cell anemia. As opposed to traditional gene therapies, which involve the introduction of healthy copies of a gene to a patient, CRISPR repairs the genetic mutation underlying a disease to restore function.

CRISPR-Cas9 was discovered in the bacterial immune system, where it is used to defend against and deactivate invading viral DNA. Cas9 is an endonuclease, or an enzyme that can selectively cut DNA. The Cas9 enzyme is complexed with a guide RNA molecule to form what is known as CRISPR-Cas9. Cas9 is often referred to as the molecular scissors, being that they cut and remove defective portions of DNA. Being that it is not perfectly precise, the enzyme will sometimes make unintended cuts in the DNA that can cause serious consequences. For this reason, enhancing the precision of the CRISPR-Cas9 system is of paramount importance.

Two versions of Cas9 are currently being used in CRISPR therapies: SpCas9 (derived from the bacteriaStreptococcus pyogenes) and SaCas9 (derived fromStaphylococcus aureus). Researchers have engineered variants of the SpCas9 enzyme to improve its precision, but these variants are too large to fit into the adeno-associated viral (AAV) vector that is often used to administer CRISPR to living organisms. SaCas9, however, is a much smaller protein that can easily fit into AAV vectors to deliver gene therapy in vivo. Being that no SaCas9 variants with enhanced precision are currently available, these CityU researchers aimed to identify a viable variant.

This recent research led to the successful engineering of SaCas9-HF, a Cas9 variant with high accuracy in genome-wide targeting in human cells and preserved efficiency. This work was led by Dr. Zheng Zongli, Assistant Professor of Department of Biomedical Sciences at CityU and the Ming Wai Lau Centre for Reparative Medicine of Karolinska Institutet in Hong Kong, and Dr. Shi Jiahai, Assistant Professor of Department of Biomedical Sciences at CityU.

Their work was based on a rigorous evaluation of 24 targeted human genetic locations which compared the wild-type SaCas9 to the SaCas9-HF. The new Cas9 variant was found to reduce the off-target activity by about 90% for targets with very similar sequences that are prone to errors by the wild-type enzyme. For targets that pose less of a challenge to the wild-type enzyme, SaCas9-HF made almost no detectable errors.

Our development of this new SaCas9 provides an alternative to the wild-type Cas9 toolbox, where highly precise genome editing is needed, explained Zheng. It will be particularly useful for future gene therapy using AAV vectors to deliver genome editing drug in vivo and would be compatible with the latest prime editing CRISPR platform, which can search-and-replace the targeted genes.

Dr. Shi and Dr. Zheng are the corresponding authors of this publication. The first authors are PhD student Tan Yuanyan from CityUs Department of Biomedical Sciences and Senior Research Assistant Dr. Athena H. Y. Chu from Ming Wai Lau Centre for Reparative Medicine (MWLC) at Karolinska Institutet in Hong Kong. Other members of the research team were CityUs Dr. Xiong Wenjun, Assistant Professor of Department of Biomedical Sciences, research assistant Bao Siyu (now at MWLC), PhD students Hoang Anh Duc and Firaol Tamiru Kebede, and Professor Ji Mingfang from the Zhongshan Peoples Hospital.

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Modified Protein Enhances the Accuracy of CRISPR Gene Therapy - DocWire News

BRISBANE, Calif.--(BUSINESS WIRE)--Sangamo Therapeutics, Inc. (NASDAQ: SGMO), a genomic medicine company, today announced that hemophilia A gene therapy clinical data and hemoglobinopathies ex vivo gene-edited cell therapy data will be featured in poster presentations at the 61st Annual Meeting of the American Society of Hematology (ASH). The ASH abstracts, which were submitted on August 3, 2019, were released online this morning. The conference will take place in Orlando, FL, from December 7-10, 2019.

Gene Therapy

The SB-525 poster will show updated Alta study data including durability of Factor VIII (FVIII) levels, bleeding rate, factor usage, and safety, for all five patients in the high dose cohort of 3e13 vg/kg, with approximately 4 months to 11 months of follow-up after treatment with SB-525.

As of the abstract submission date, four patients in the 3e13 vg/kg cohort achieved FVIII levels within the normal range with no bleeding events reported up to 24 weeks post-administration. These patients did not require FVIII replacement therapy following the initial prophylactic period of up to approximately 3 weeks post-SB-525 administration. The fifth patient in the 3e13 vg/kg cohort had only recently undergone treatment with SB-525 at the time of the abstract submission. As previously reported, one patient had treatment-related serious adverse events (SAEs) of hypotension and fever, which occurred approximately 6 hours after completion of the vector infusion and resolved with treatment within 24 hours, with no loss of FVIII expression. SB-525 is being developed as part of a global collaboration between Sangamo and Pfizer.

The rapid kinetics of Factor VIII expression, durability of response, and the relatively low intra-cohort variability in the context of a complete cessation of bleeding events and elimination of exogenous Factor VIII usage continues to suggest SB-525 is a differentiated hemophilia A gene therapy, said Bettina Cockroft, M.D., M.B.A., Chief Medical Officer of Sangamo, commenting on the published abstract. We are pleased with the progress of the program toward a registrational Phase 3 study led by Pfizer, who announced it has enrolled its first patient in the 6-month Phase 3 lead-in study. We have recently completed the manufacturing technology transfer to Pfizer and initiated the transfer of the IND.

Ex Vivo Gene-Edited Cell Therapy

The ST-400 beta thalassemia poster will show preliminary results from the first three patients enrolled in the Phase 1/2 THALES study. In this study, hematopoietic stem progenitor cells (HSPCs) are apheresed from the patient, edited to knock out the erythroid specific enhancer of the BCL11A gene, and cryopreserved prior to infusion back into the patient following myeloablative conditioning with busulfan. The first three patients all have severe beta thalassemia genotypes: 0/0, homozygous for the severe + IVS-I-5 (G>C) mutation, and 0/+ genotype including the severe IVS-II-654 (C>T) mutation, respectively.

As of the abstract submission date, Patient 1 and Patient 2 had experienced prompt hematopoietic reconstitution. Patient 1 had increasing fetal hemoglobin (HbF) fraction that contributed to a stable total hemoglobin. After being free from packed red blood cell (PRBC) transfusions for 6 weeks, the patient subsequently required intermittent transfusions. Patient 2 had rising HbF levels observed through 90 days post-infusion. For both patients, as of the most recent follow-up reported in the abstract, on-target insertions and deletions (indels) were present in circulating white blood cells. Patient 3 had just completed ST-400 manufacturing at the time of abstract submission. As previously disclosed, Patient 1 experienced an SAE of hypersensitivity during ST-400 infusion considered by the investigator to be related to the product cryoprotectant, DSMO, and which resolved by the end of the infusion. No other SAEs related to ST-400 have been reported and all other AEs have been consistent with myeloablation. No clonal hematopoiesis has been observed. Longer follow-up will be required to assess the clinical significance of these early results. ST-400 is being developed as part of a global collaboration between Sangamo and Sanofi, along with support through a grant from the California Institute for Regenerative Medicine (CIRM).

The first three patients enrolled in the THALES study all have severe beta thalassemia genotypes that result in almost no endogenous beta globin production. The increases in fetal hemoglobin and presence of on-target indels in circulating blood cells suggests successful editing using zinc finger nucleases. The results are preliminary and will require additional patients and longer-term follow-up to assess their clinical significance, said Adrian Woolfson, BM., B.Ch., Ph.D., Head of Research and Development. It is important to note that myeloablative hematopoietic stem cell transplantation reboots the hematopoietic system, and that sufficient time is required for the stem cells to fully repopulate the marrow and for new blood cells to form. In other myeloablative conditioning studies in a similar patient population, full manifestation of the effects of gene modification in the red blood cell compartment has taken as long as 12 months or more to become evident.

Sanofis in vitro sickle cell disease poster details a similar approach to ST-400, using mobilized HSPCs from normal donors and SCD patients and utilizing the same zinc finger nuclease for gene editing, delivered as transient non-viral RNA, and designed to disrupt the erythroid specific enhancer of the BCL11A gene, which represses the expression of the gamma globin genes, thereby switching off HbF synthesis. Results from ex vivo studies demonstrated enriched biallelic editing, increased HbF, and reduced sickling in erythroid cells derived from non-treated sickle cell disease patients. Sanofi has initiated a Phase 1/2 trial evaluating BIVV003, an ex vivo gene-edited cell therapy using ZFN gene editing technology to modify autologous hematopoietic stem cells using fetal hemoglobin to produce functional red blood cells with higher BhF content that are resistant to sickling in patients with severe sickle cell disease. Recruitment is ongoing.

About the Alta study

The Phase 1/2 Alta study is an open-label, dose-ranging clinical trial designed to assess the safety and tolerability of SB-525 gene therapy in patients with severe hemophilia A. SB-525 was administered to 11 patients in 4 cohorts of 2 patients each across 4 ascending doses (9e11 vg/kg, 2e12 vg/kg, 1e13vg/kg and 3e13vg/kg) with expansion of the highest dose cohort by 3 additional patients. The U.S. Food and Drug Administration (FDA) has granted Orphan Drug, Fast Track, and regenerative medicine advanced therapy (RMAT) designations to SB-525, which also received Orphan Medicinal Product designation from the European Medicines Agency.

About the THALES study

The Phase 1/2 THALES study is a single-arm, multi-site study to assess the safety, tolerability, and efficacy of ST-400 autologous hematopoietic stem cell transplant in 6 patients with transfusion-dependent beta thalassemia (TDT). ST-400 is manufactured by ex vivo gene editing of a patient's own (autologous) hematopoietic stem cells using non-viral delivery of zinc finger nuclease technology. The THALES study inclusion criteria include all patients with TDT (0/0 or non- 0/0) who have received at least 8 packed red blood cell transfusions per year for the two years before enrollment in the study. The FDA has granted Orphan Drug status to ST-400.

About Sangamo Therapeutics

Sangamo Therapeutics, Inc. is focused on translating ground-breaking science into genomic medicines with the potential to transform patients' lives using gene therapy, ex vivo gene-edited cell therapy, in vivo genome editing, and gene regulation. For more information about Sangamo, visit http://www.sangamo.com.

Forward-Looking Statements

This press release contains forward-looking statements regarding Sangamo's current expectations. These forward-looking statements include, without limitation, statements regarding the Company's ability to develop and commercialize product candidates to address genetic diseases with the Company's proprietary technologies, as well as the timing of commencement of clinical programs and the anticipated benefits therefrom. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Factors that could cause actual results to differ include, but are not limited to, the outcomes of clinical trials, the uncertain regulatory approval process, uncertainties related to the execution of clinical trials, Sangamo's reliance on partners and other third-parties to meet their clinical and manufacturing obligations, and the ability to maintain strategic partnerships. Further, there can be no assurance that the necessary regulatory approvals will be obtained or that Sangamo and its partners will be able to develop commercially viable product candidates. Actual results may differ from those projected in forward-looking statements due to risks and uncertainties that exist in Sangamo's operations and business environments. These risks and uncertainties are described more fully in Sangamo's Annual Report on Form 10-K for the year ended December 31, 2018 as filed with the Securities and Exchange Commission and Sangamo's most recent Quarterly Report on Form 10-Q. Forward-looking statements contained in this announcement are made as of this date, and Sangamo undertakes no duty to update such information except as required under applicable law.

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Sangamo Announces Gene Therapy and Ex Vivo Gene-Edited Cell Therapy Data Presentations at the American Society of Hematology Annual Meeting - Business...

GERMANTOWN, Md., Nov. 7, 2019 /PRNewswire/ -- Triple-Gene LLC, a clinical stage cardiovascular gene therapy company and majority owned subsidiary of Intrexon Corporation (NASDAQ: XON), today announced the completion of enrollment and dosing in its Phase 1 trial of INXN-4001, a multigenic investigational therapeutic candidate under evaluation for the treatment of heart failure, the leading cause of death worldwide. The Phase 1 open label study is designed to investigate the safety of INXN-4001 delivered via Retrograde Coronary Sinus Infusion (RCSI) in patients with an implanted Left Ventricular Assist Device (LVAD) for mechanical support of end-stage heart failure, either as a bridge to transplant or destination therapy (clinical trial identifier: NCT03409627).

"We are excited to have reached this important milestone in the clinical evaluation of INXN-4001 for treatment of end-stage heart failure," stated Amit Patel, MD, MS, Co-Founder and Medical Director of TripleGene. "Heart failure rarely results from a single genetic defect, and while single gene therapy approaches have been studied, these treatments may not fully address the causes of the disease. Our unique multigenic approach is designed to stimulate biological activity targeting multiple points in the disease progression pathway."

Triple-Gene's investigational therapy uses non-viral delivery of a constitutively expressed multigenic plasmid designed to express human S100A1, SDF-1, and VEGF165 gene products, which affect progenitor cell recruitment, angiogenesis, and calcium handling, respectively, and target the underlying molecular mechanisms of pathological myocardial remodeling. The plasmid therapy is delivered via RCSI which allows for cardiac-specific delivery to the ventricle.

"Heart failure is the leading cause of death worldwide and represents a significant and growing global health problem. Aside from heart transplant and LVAD, current treatment options for those patients with end-stage disease are limited," commented Timothy Henry, MD, FACC, MSCAI, Medical Director of the Carl and Edyth Lindner Center for Research and Education at The Christ Hospital and a member of the Triple-Gene Medical Advisory Board. "The INXN4001 investigational therapy represents a biologically-based method focused on repairing the multiple malfunctions of cardiomyocytes, and I look forward to seeing the results of this initial safety study and further exploring the promise of this innovative treatment approach."

Triple-Gene will present preliminary data from the Phase 1 study at the American Heart Association Scientific Sessionsat the Pennsylvania Convention Center in Philadelphia. A poster titled "Safety of First in Human Triple-Gene Therapy Candidate for Heart Failure Patients" will be presented on Sunday, November 17th from 3:00 pm - 3:30 pm ETin Zone 4 of the Science and Technology Hall.

About the Phase 1 Trial of INXN-4001INXN-4001 is being evaluated in a Phase I open label study in adult patients with implanted Left Ventricular Assist Device (LVAD). The study is designed to investigate the safety and feasibility of supplemental cardiac expression of S100A1, SDF-1 and VEGF-165 from a single, multigenic plasmid delivered via Retrograde Coronary Sinus Infusion (RCSI) in stable patients implanted with a LVAD for mechanical support of end-stage heart failure. Twelve stable patients with an implanted LVAD were allocated into 2 cohorts (6 subjects each) to evaluate the safety and feasibility of infusing 80mg of INXN4001 in either a 40mL (Cohort 1) or 80mL (Cohort 2) volume. The primary endpoint of safety and feasibility is assessed at the 6-month endpoint. Daily activity data are also collected throughout the study using a wearable biosensor. Dosing on both Cohorts 1 and 2 has been completed, and patients continue follow-up per protocol.

About Triple-GeneTriple-Gene LLC is a clinical stage gene therapy company focused on advancing targeted, controllable, and multigenic gene therapies for the treatment of complex cardiovascular diseases. The Company's lead product is a non-viral investigational gene therapy candidate that drives expression of three candidate effector genes involved in heart failure. Triple-Gene is a majority owned subsidiary of Intrexon Corporation(NASDAQ: XON) co-founded by Amit Patel, MD, MS, and Thomas D. Reed, PhD, Founder and Chief Science Officer of Intrexon. Learn more about Triple-Gene at http://www.3GTx.com.

About Intrexon CorporationIntrexon Corporation (NASDAQ: XON) is Powering the Bioindustrial Revolution with Better DNAto create biologically-based products that improve the quality of life and the health of the planet through two operating units Intrexon Health and Intrexon Bioengineering. Intrexon Health is focused on addressing unmet medical needs through a diverse spectrum of therapeutic modalities, including gene and cell therapies, microbial bioproduction, and regenerative medicine. Intrexon Bioengineering seeks to address global challenges across food, agriculture, environmental, energy, and industrial fields by advancing biologically engineered solutions to improve sustainability and efficiency. Our integrated technology suite provides industrial-scale design and development of complex biological systems delivering unprecedented control, quality, function, and performance of living cells. We call our synthetic biology approach Better DNA, and we invite you to discover more at http://www.dna.comor follow us on Twitter at @Intrexon, on Facebook, and LinkedIn.

TrademarksIntrexon, Powering the Bioindustrial Revolution with Better DNA,and Better DNA are trademarks of Intrexon and/or its affiliates. Other names may be trademarks of their respective owners.

Safe Harbor Statement Some of the statements made in this press release are forward-looking statements. These forward-looking statements are based upon our current expectations and projections about future events and generally relate to our plans, objectives and expectations for the development of our business. Although management believes that the plans and objectives reflected in or suggested by these forward-looking statements are reasonable, all forward-looking statements involve risks and uncertainties and actual future results may be materially different from the plans, objectives and expectations expressed in this press release.

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European regulations might be responsible for lower numbers of advanced therapy clinical trials running in the region when compared to the US and Asia.

Europe has historically been a pioneer in advanced therapies, such as cell and gene therapy. Europe was the first region to approve a gene therapy, and it boasts the highest number of marketing authorizations of advanced therapies worldwide.

However, in the past four years, the number of clinical trials with advanced therapies has stalled in Europe, growing by just below 2%. Meanwhile, the number of trials went up in North America and Asia by 36% and 28%, respectively, in the same period.

This conclusion was drawn from the analysis of the 2,097 clinical trials of advanced therapies conducted worldwide between 2014 and the first half of 2019. The study was carried out by the Alliance for Regenerative Medicine (ARM), an international community of stakeholders in the development of new medical technologies.

Current EU regulations could be to blame. Any clinical trial that is conducted across multiple European countries requires separate review and approval in each country.

When national authorities review clinical trial authorizations independently, they may have diverging opinions that create a delay for the companies, said Annie Hubert, Senior Director of European Policy at the ARM.

The issue becomes even bigger with advanced therapies, as the requirements regarding testing donors and starting materials vary across different countries.

In particular, gene therapies are the most affected. The study found that while in North America 71% of advanced therapy trials involve any form of gene therapy or gene editing, in Europe that percentage is only 55%.

Gene therapies face an additional hurdle in Europe; they are considered genetically modified organisms and must therefore additionally comply with GMO regulation, which falls under the umbrella of environmental or agricultural legislation depending on the country.

The complexity in the GMO regulation may be the reason why we see fewer clinical trials with gene therapy in Europe compared to other regions, Hubert told me.

A company that applies for a clinical trial with a gene therapy needs to secure the review and approval by the GMO authority in that country on top of having the approval for the clinical trial for the medicinal product. There have been situations where, for the same gene therapy, the decision from different GMO authorities in Europe was different.

The study concluded that streamlining the regulatory process might make Europe more competitive in the development of advanced therapies. This can already be seen in certain European countries, such as Belgium, Denmark and Switzerland, where the amount of clinical trials is actually higher than in the US when accounting for their size.

Belgium for instance has an approval time of 15 days for phase I clinical trials. That acts as an incentive, said Hubert. In the UK and in Denmark, companies have access to a central point of contact that liaises with the GMO authorities and facilitates the review of clinical trial applications.

The European Commission has been aware of these issues for several years. Previous studies reported that the current clinical trial legislation, which dates to 2001, resulted in a decline in the overall number of clinical trials running in Europe.

The Commission has already created new regulations that seek to address some of these problems through a centralized application system where one national authority takes the lead in reviewing the application, while the others can either agree or disagree with it.

However, there have been delays in the creation of the application platform and the regulations have not yet been implemented. Hubert expects this could happen sometime in late 2020 or 2021.

I think we need to be realistic. Any significant change will probably take a number of years before we can see the number of clinical trials increasing significantly in Europe.

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EU Regulations Are Holding Back Gene and Cell Therapy Clinical... - Labiotech.eu

PTC Therapeutics announced a strategic partnership with Aldevronto ensure the production of high-quality plasmid DNA to be used with PTCs investigational gene therapies, including AGIL-AS for the treatment of Angelman syndrome (AS).

PTCs growing gene therapy pipeline for genetic disorders of the central nervous system (CNS) also includes an investigational gene therapy for AADC deficiencythats nearing submission to the U.S. Food and Drug Administration (FDA), as well as candidates for Friedreichs ataxiaand Angelman syndrome that are at earlier development stages. Other candidates for cognitive disorders and inherited retinal disorders are in preclinical research.

Our strategic collaboration with Aldevron represents our continued commitment to produce and provide the highest quality product to patients, Neil Almstead, PhD, PTCs chief technical operations officer, said in a press release.

Our gene therapy pipeline is addressing the unmet needs of multiple patient populations, and we feel an urgent need to develop safe products with the utmost speed. The development of relationships with top-tier companies like Aldevron aligns with our goal of partnering with the best collaborators as we drive meaningful improvements in the lives of patients, Almstead said.

PTCs gene therapy candidate for Angelmans syndrome is called AGIL-AS. It uses a modified virus that does not cause infection called an adeno-associated virus (AAV) to deliver a working copy of the UBE3Agene, the faulty gene in Angelman syndrome, to the brain and spinal cord of patients. The process is designed to restore production of the E6-AP protein produced by the UBE3A gene, this way improving cell function and rescuing neurological defects in Angelman syndrome.

Preclinical studieshave shown that AGIL-AS targets nerve cells in the brain, increases levels of E6-AP, and eases AS-like cognitive deficits in animal models of the disease.

AGIL-AS was granted orphan drug designationfrom the U.S. Food and Drug Administration in 2015, followed by a similar designation from theEuropean Commission in 2016.

Under the agreement, Aldevron will manufacture the plasmid DNA (circular molecules of DNA) where the functional version of UBE3A gene will be enclosed for delivery. The company ensures the materials are produced under Good Manufacturing Practice (GMP), a set of guidelines allowing products to be consistently made and controlled according to quality standards.

It is truly an honor to work with PTCs motivated team of experts. They are making enormous contributions to the future of genetic medicine, saidMichael Chambers, founder and CEO of Aldevron.

This is Aldevrons mission to serve scientists and researchers who are relentlessly pursuing cures for people who need them, he added.

Ana is a molecular biologist enthusiastic about innovation and communication. In her role as a science writer she wishes to bring the advances in medical science and technology closer to the public, particularly to those most in need of them. Ana holds a PhD in Biomedical Sciences from the University of Lisbon, Portugal, where she focused her research on molecular biology, epigenetics and infectious diseases.

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Ana holds a PhD in Immunology from the University of Lisbon and worked as a postdoctoral researcher at Instituto de Medicina Molecular (iMM) in Lisbon, Portugal. She graduated with a BSc in Genetics from the University of Newcastle and received a Masters in Biomolecular Archaeology from the University of Manchester, England. After leaving the lab to pursue a career in Science Communication, she served as the Director of Science Communication at iMM.

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PTC, Aldevron Partner to Advance Angelman and Other Gene Therapy Candidates - Angelman Syndrome News

WATERTOWN, Mass. and RESEARCH TRIANGLE PARK, N.C., Nov. 07, 2019 (GLOBE NEWSWIRE) -- SQZ Biotechnologies (SQZ), and Asklepios BioPharmaceutical, Inc. (AskBio), announced a research collaboration to create tolerizing antigen carriers (TACs) containing AAV (adeno-associated virus) components to solve one of gene therapys biggest challenges the barrier to treatment posed by patients immune systems generating neutralizing antibodies toward therapeutic AAVs. SQZ and AskBio will combine their proprietary cell and gene therapy platform technologies to open the door to new treatment paradigms with potential impact across many genetic diseases.

Gene therapies utilizing AAV vectors can be transformative for patients with genetic diseases, but neutralizing antibodies can prevent large populations of patients from benefitting from AAV gene therapies. Patients immune systems develop neutralizing antibodies after receiving their first dose of AAV, or they can be pre-existing. This collaboration will strive to give these patients access to novel therapeutics and enable them to take multiple or repetitive doses to gain the full, durable benefit these treatments can provide. Expanding patient eligibility and allowing repeat treatment could change the future of how products are developed and significantly impact the long-term health of millions in need.

This is a tremendous opportunity to bring together the power of both cell and gene therapy for patients. AskBio has been an innovative leader in gene therapy and shares our patient-centric philosophy. By working together and leveraging the potential of both our platforms, we hope to bring more effective, more durable treatments to patients suffering from devastating rare genetic disorders, said Armon Sharei, PhD, founder and chief executive officer of SQZ Biotech.

The collaboration between SQZ and AskBio will evaluate the administration of SQZ TACs and AskBios gene therapies to potentially address AAV immunogenicity. SQZ is a pioneer in cell therapy, and the companys knowledge and expertise, as well as their advance capabilities in manufacturing, are critical to this collaborations approach to synergizing cell and gene therapies. Preclinical data from SQZ has demonstrated that SQZ TACs specifically inhibit undesired immune responses in multiple contexts, including AAV models. As a leader in the AAV field, AskBio brings expertise in AAV technology, capsid design, clinical processes and manufacturing that would allow for application of these novel methods to overcome immunogenicity. The two companies have a shared goal to increase world-wide access of transformative therapeutics.

R. Jude Samulski, PhD, chief scientific officer and co-founder of AskBio, noted, AskBio is firmly committed to improving the lives of underserved patients, such as those suffering from Pompe, Huntingtons and various neuromuscular and central nervous system diseases. Addressing AAV immunogenicity is essential to the future of gene therapy as it is one of the most significant limiting factors plaguing the gene therapy space today. SQZs pioneering approach to tolerance could offer a solution to this problem. Our collaboration with SQZ is exemplary of our goal to broadly explore potential redosing of AAV gene therapies, added Sheila Mikhail, chief executive officer and co-founder of AskBio. We are thrilled to be working with SQZ and are hopeful that this initial research collaboration utilizing two of the most promising therapeutic modalities currently available, cell and gene therapy, will ultimately provide options to improve patients immune response to gene therapy.

About AskBioFounded in 2001, Asklepios BioPharmaceutical, Inc. (AskBio) is a privately held, clinical-stage gene therapy platform company dedicated to improving the lives of children and adults with genetic disorders. AskBios gene therapy platform includes an industry-leading proprietary cell line manufacturing process known as Pro10 and an extensive AAV capsid library. Based in Research Triangle Park, N.C., the company has generated hundreds of proprietary third-generation gene vectors, several of which have entered clinical testing. An early innovator in the space, the company holds more than 500 patents in areas such as AAV production, chimeric vectors, and self-complementary DNA. AskBio maintains a portfolio of clinical programs across a range neurodegenerative and neuromuscular indications with a current pipeline that includes therapeutics for Pompe disease, Limb Girdle Muscular Dystrophy and congestive heart failure as well as out-license clinical indications for Hemophilia (Chatham Therapeutics acquired by Takeda) and Duchenne Muscular Dystrophy (Bamboo Therapeutics acquired by Pfizer). For more information, visit http://www.askbio.com.

About SQZ BiotechSQZ Biotech is a privately held, clinical-stage company creating innovative treatments by transforming cells into sophisticated therapeutics. Using its proprietary platform, SQZ has the unique ability to precision engineer virtually any cell type and deliver multiple materials, potentially resulting in powerful, multifunctional cell therapies for a range of diseases with an initial focus on cancer and autoimmune disease. The companys initial applications leverage SQZs ability to generate target-specific immune responses, both in activation for the treatment of solid tumors, and immune suppression for the treatment of immune reactions and diseases. For more information please visit http://www.sqzbiotech.com.

About SQZ TACsSQZ tolerizing antigen carriers (TACs) are being developed to induce tolerance to aberrant or unwanted immune activity. TACs are developed from red blood cells (RBCs) SQZd with target-specific antigens and piggyback on the natural process of RBC destruction in the body, also known as eryptosis. A process moderated by our liver and spleen, eryptosis causes macrophages to take up aged or senescent RBCs. When our bodies process RBCs for destruction, their components are presented in a tolerogenic manner, reminding our immune systems not to attack our own red blood cells. SQZ TACs drive targeted antigensthrough this powerful natural mechanism, specifically tolerizing the immune system, potentially stopping undesired immune responses.

AskBio Contacts: Mark Rosenbergmark@trueparallel.com919-412-7378

Roger Friedensen, APRroger@trueparallel.com919-349-3206

SQZ Contacts:Rebecca CohenSenior Manager, Corporate Relationsrebecca.cohen@sqzbiotech.com617-758-8672 ext. 728

Cait Williamson, PhDLifeSci Public Relations cait@lifescipublicrelations.com646-751-4366

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SQZ Biotech and AskBio Announce Research Collaboration to Create Immune Tolerization Products for AAV Gene Therapies - GlobeNewswire

Cell therapy CDMO Cognate Bioservices will add plasmid DNA and viral vector capabilities through the acquisition of Swedish manufacturer Cobra Biologics.

Memphis, Tennessee-based contract development and manufacturing organization (CDMO) Cognate has entered into an agreement to acquire Cobra for an undisclosed fee, led by existing Cognate investor EW Healthcare Partners.

The deal adds to Cognates presence in the regenerative medicine space by bringing on board plasmid DNA and viral vector manufacturing capacity and expertise, complementing its own autologous and allogeneic cell-based and cell-mediated gene therapy capabilities.

Image: iStock/Good_Stock

According to Cognate, the deal will create a fully integrated cell and gene therapy CDMO providing more scalable solutions to its clients.

This acquisition is central to Cognates strategy to build on its existing offerings and create an enterprise platform for life cycle management of cell and gene therapy products, accelerating the availability of new technologies to patients that need them most, said Cognate CEO J. Kelly Ganjei.

The combined Cognate-Cobra expertise, infrastructure, and geographical footprint immediately positions both businesses to better respond to current and future market needs more quickly, effectively, and comprehensively.

The transaction is subject to receipt of approval for the US authorities under the Hart-Scott-Rodino Antitrust Improvements Act of 1976.

Peter Coleman, CEO of Cobra Biologics, told Bioprocess Insider the two companies will operate as different business units and he will continue to be involved with Cobra following the acquisition.

There will be elements of integration, in particular linking the technical capabilities together, but the intention is to operate as two separate business units each with its own specialization and track record.

Cognate operates an 80,000 square-foot site in Memphis, originally built in 2017 for autologous cell therapy manufacturing but now produces various cell types for customers clinical projects. Our largest phase of clinical grade production was an autologous product for phase III clinical trials, mostly manufactured in Memphis with products shipped to more than 80 clinical sites in four countries, the company states.

Cobra brings to the table two GMP approved facilities: an advanced therapy medicinal product (ATMP) production site in northwest UK offering DNA and viral vector services, and an ATMP production site in Matfors, Sweden offering DNA and microbiota services.

Last month, Cobra inked a deal to manufacture the adeno-associated viral vector (AAV) for Nordic gene therapy company Combigenes epilepsy candidate CG01 from its facility in the UK.

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Cognate buys Cobra to boost gene therapy CDMO - Bioprocess Insider - BioProcess Insider

A team of scientists from City University of Hong Kong (CityU) and the Karolinska Institute has created a novel protein that can increase the target accuracy in genome editing. Their findings are published in the journal Proceedings of the National Academy of Sciences (PNAS).Meet CRISPRThe gene editing technology Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 looks set to revolutionize modern medicine, agriculture, and synthetic biology.The ability to edit the genome in vivo offers the potential to develop novel gene therapies for diseases that currently lack viable treatment options. Several clinical trials are underway exploring the utility of CRISPR technology in treating specific cancers, blood disorders and eye diseases.CRISPR-Cas9 as a gene editing tool is superior over other techniques due to its ease of use. In traditional gene therapy, additional copies of the "normal" gene are introduced into cells. Using CRISPR technology, this isnt necessary; CRISPR-Cas9 enters the cell and "repairs" the problematic gene by removing it or correcting it to restore normal physiological function.

There are different components to the CRISPR mechanism. Cas9 is the enzyme that flags and locates the problematic DNA throughout the genome, acting in a "hunting" fashion. However, the precision of Cas9 cannot always be established, and occasionally modifications of DNA at unintended places can occur. If CRISPR is to be utilized to repair faulty genes in patients, potential off-target genome editing could have serious adverse effects.

There are currently two versions of the Cas9 enzyme commonly adopted in CRISPR research: SpCas9 (Cas9 nuclease from the bacteria Streptococcus pyogenes) and SaCas9 (Cas9 nuclease from Staphylococcus aureus). Both of these enzymes are limited in that they possess a certain level of imprecision.

Thus, scientists have endeavored to develop variants of both enzymes, with the aim being to increase their precision and reduce off-target effects. The issue with SpCas9 is that the modified variants are often too large to "fit" in the delivery system adopted for inserting gene therapies into patients, known as adeno-associated viral (AAV) vectors.SaCas9 is advantageous over SpCas9 in that it can be easily packaged into the AAV vectors for delivering gene-editing contents in vivo. However, at present, there is no SaCas9 variant that possesses high accuracy in genome-wide editing. Until now.Now meet SaCas9-HFIn the new study published in Proceedings of the National Academy of Sciences (PNAS), a research team led by Zheng Zongli, Assistant Professor of Department of Biomedical Sciences at CityU and the Ming Wai Lau Centre for Reparative Medicine of the Karolinska Institute in Hong Kong, and Shi Jiahai, Assistant Professor of Department of Biomedical Sciences at CityU, has successfully engineered SaCas9-HF, a CRISPR Cas9 variant which has demonstrated high accuracy in genome-wide targeting in human cells without compromising on-target efficiency.In the study, the scientists conducted an extensive evaluation of 24 targeted human genetic locations comparing the original (known as wild-type) SaCas9, and the new variant, SaCas9-HF. They discovered that for targets with highly similar sequences in the genome (and therefore often disposed to off-target editing by wild-type Cas9), SaCas9-HF decreased the off-target activity by ~90%. When assessing targets that had relatively less off-targeting editing by wild-type SaCas9, the SaCas9-HF enzyme produced little to no detectable off-target effects.

"Our development of this new SaCas9 provides an alternative to the wild-type Cas9 toolbox, where highly precise genome editing is needed. It will be particularly useful for future gene therapy using AAV vectors to deliver genome editing 'drug' in vivo and would be compatible with the latest 'prime editing' CRISPR platform, which can 'search-and-replace' the targeted genes," said Dr Zheng.Reference: Tan et al. 2019. Rationally engineered Staphylococcus aureus Cas9 nucleases with high genome-wide specificity. Proceedings of the National Aacademy of Sciences (PNAS). DOI: https://doi.org/10.1073/pnas.1906843116

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A Highly Precise Cas9 Enzyme, SaCas9-HF, Is Added to the CRISPR Toolbox - Technology Networks

7-Nov-2019

Design and Build

Canadian cleanroom builder to work in the US on a new 1,600-sq-ft site of ISO Class 7

The New Jersey Innovation Institute is located in Newark, in the United States

Mecart, the Canadian cleanroom specialist, has been selected by the US-based New Jersey Innovation Institute (NJII) for a new GMP cleanroom at its Cell and Gene Therapy Development Center. The NJII is based in Newark, US.

Commenting on the project with Mecart, Dr Haro Hartounian, NJII Senior Executive Director, Biotechnology and Pharmaceutical Innovation, said: We were excited to meet with the Mecart team, travel to Quebec City to visit with their leadership, and review the project in detail with them. It has been a great experience thus far and we know that we picked the best partner for this critical project.

The project represents a new GMP cleanroom of approximately 1,600 square feet of ISO 7 space developed specifically for advanced cell and gene therapy processing and manufacturing operations.

Its an honour to work with such an innovative company that focuses on local collaboration with its technological resources, like this new cleanroom, said Patrice Genois, General Manager of Mecart and Vice President of PolR.

The NJII is an NJIT corporation that applies the intellectual and technological resources of the states science and technology university to challenges identified by industry partners.

Upon completion, the new GMP site will also serve as a training facility and a venue for collaborating with local manufacturing.

Charles Lipeles, Vice President of US Operations, commented: When NJII approached Mecart, they were clear that lead time was crucial as was a very tight specification for their state-of-the-art GMP cleanroom. They had very aggressive goals, made more challenging when dealing with an institution with government ties, but we were ready for the challenge. We are excited to work with the NJII and NJIT teams and help them exceed their goals with this new suite of cleanrooms."

Construction is planned to begin later this year and will be completed in Q1 of 2020.

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NJ Innovation Institute chooses Mecart for cell and gene therapy centre - Cleanroom Technology

Registrational Trial for Wiskott-Aldrich Syndrome Met Key Primary and Secondary Endpoints at Three Years; Data from Integrated Analysis Reinforce Treatment Benefits of Gene Therapy and Durability of Effect in Additional Patients

Similar Profiles Reported Between Cryopreserved and Fresh Formulations of OTL-101, Further Supporting Upcoming Regulatory Filing and Broad Patient Availability

BOSTON and LONDON, Nov. 06, 2019 (GLOBE NEWSWIRE) -- Orchard Therapeutics (Nasdaq: ORTX), a leading commercial-stage biopharmaceutical company dedicated to transforming the lives of patients with serious and life-threatening rare diseases through innovative gene therapies, today announced the upcoming presentation of registrational data from multiple programs at the 61st American Society of Hematology (ASH) Annual Meeting in Orlando, FL.

Investigators will describe ongoing clinical progress for two lead development programs in the companys primary immune deficiencies portfolio: OTL-103, an investigational gene therapy in development for the treatment of Wiskott-Aldrich syndrome (WAS) at theSan Raffaele-Telethon Institute for Gene Therapy(SR-Tiget) inMilan, Italy; and OTL-101, an investigational gene therapy in development for the treatment of adenosine deaminase severe combined immunodeficiency (ADA-SCID).

In addition, investigators will deliver an oral presentation featuring updated data from the ongoing proof-of-concept study of OTL-203, an investigational gene therapy in development for the treatment of mucopolysaccharidosis type I (MPS-I) atSR-Tiget.

This growing body of positive data, from dozens of patients across multiple diseases, provides a solid foundation as we advance each program toward its next phase of development, including upcoming regulatory submissions for ADA-SCID and WAS, saidMark Rothera, president and chief executive officer ofOrchard Therapeutics. We now have two supportive data sets one from our OTL-101 program in ADA-SCID and one from our OTL-200 program in metachromatic leukodystrophy that demonstrate cryopreserved formulations are engrafting as expected, similar to the fresh formulation. This supports our strategy for making these therapies, if approved, broadly available to patients in need throughout the world.

We are extremely pleased with our continued clinical progress, including the duration of benefits seen in our WAS trial, which is the longest published follow-up of hematopoietic stem cell gene therapy durability to date using lentiviral vector transduction, said Bobby Gaspar, M.D., Ph.D., chief scientific officer of OrchardTherapeutics. The totality of these data underscores the broad applicability of our gene therapy platform approach and the opportunity we have to deliver potentially curative treatments for a variety of devastating and rare genetic disorders.

Full presentation details are below:

Poster Presentation Details

Lentiviral Hematopoietic Stem and Progenitor Cell Gene Therapy for Wiskott-Aldrich Syndrome (WAS): Up to 8 Years of Follow up in 17 Subjects Treated Since 2010Publication Number: 3346Session: 801. Gene Therapy and Transfer: Poster IIDate and time:Sunday, December 8, 6:00-8:00pm ET

This presentation includes results from an integrated analysis of 17 patients treated with OTL-103 for the treatment of WAS, including the complete data set for the eight patients from the registrational study and nine who received OTL-103 as part of an expanded access program (EAP). Participants have been followed for a median of three years.

In the eight-patient registrational trial, investigators reported that the study achieved its key primary and secondary endpoints at three years, including the elimination of severe bleeding episodes and a significant reduction in the frequency of moderate bleeding episodes. Successful engraftment was observed within three months, leading to an increase in WAS protein expression and a vector copy number that has been maintained for up to eight years. Nine months post-administration, all patients stopped receiving platelet transfusions, and no severe bleeding events were reported. A significant reduction in the rate of severe infections was also observed and all patients were able to stop immunoglobin replacement therapy (IgRT), suggesting a complete reconstitution of immune function with durability of effect of up to eight years of follow-up post-gene therapy.

Similar clinical results were seen in the integrated analysis of 17 patients and overall survival was 94% (16/17). One death occurred among the EAP cohort that was considered by the investigator to be unrelated to OTL-103.

Across the original and integrated data sets, there were no adverse events considered to be related to OTL-103, including no evidence of oncogenesis, replication competent lentivirus or abnormal clonal proliferation. Clinical benefit was also attained in patients older than five years of age, a group considered at higher risk when treated with allogeneic hematopoietic stem cell transplantation (HSCT).

Lentiviral Gene Therapy with Autologous Hematopoietic Stem and Progenitor Cells (HSPCs) for the Treatment of Severe Combined Immune Deficiency Due to Adenosine Deaminase Deficiency (ADA-SCID): Results in an Expanded CohortPublication Number: 3345Session: 801. Gene Therapy and Transfer: Poster IIDate and time: Sunday, December 8, 6:00-8:00pm ET

This presentation details the safety and efficacy of OTL-101 in 30 individuals with ADA-SCID, treated with either fresh (n=20) or cryopreserved (n=10) formulations. Patients were followed for a median of 24 months (range 12-24 months overall and 12-18 months for patients treated with the cryopreserved formulation), and results were compared with a historical cohort of 26 ADA-SCID patients treated with allogeneic hematopoietic stem cell transplantation (HSCT), including HSCT both with, and without, a matched related donor.

Results showed engraftment of genetically modified hematopoietic stem cells in 29 of 30 OTL-101 patients by six to eight months, which persisted through follow-up in both studies. Analysis of both the vector copy number in granulocytes (a measure of engraftment) and T-cell reconstitution (a relevant measure of immune recovery) showed consistent performance across the fresh and cryopreserved-treated patients.

In the OTL-101 treated patients, overall survival was 30/30 (100%) and event-free survival was 29/30 (97%). One of the 30 patients restarted treatment with enzyme replacement therapy (ERT) and subsequently withdrew from the study and received a rescue HSCT. In the historical control population, 42% of HSCT patients required re-initiation of ERT, rescue HSCT or other intervention, or died. As expected, there was no incidence of graft versus host disease in the OTL-101 group, compared with eight patients who received HSCT.

Eighteen of 20 patients (90%) in the fresh formulation study stopped immunoglobin replacement therapy (IgRT) after two years, compared to 52% of HSCT patients. Of the seven patients treated with the cryopreserved formulation with 18 months of follow-up, five had discontinued IgRT (71%), which is comparable to the 18-month data for patients treated with the fresh formulation.

Oral Presentation Details

Extensive Metabolic Correction of Hurler Disease by Hematopoietic Stem Cell-Based Gene Therapy: Preliminary Results from a Phase I/II TrialPublication Number: 607Session: 801. Gene Therapy and Transfer: Gene Therapies for Non-Malignant DisordersDate and time:Monday, December 9, 7:00am ET

Investigators will present updated analyses from the ongoing proof-of-concept trial of OTL-203 for mucopolysaccharidosis type I (MPS-I).

About ADA-SCID and OTL-101Severe combined immune deficiency due to adenosine deaminase deficiency (ADA-SCID) is a rare, life-threatening, inherited disease of the immune system caused by mutations in the ADA gene resulting in a lack of, or minimal, immune system development.1-4The first symptoms of ADA-SCID typically manifest during infancy with recurrent severe bacterial, viral and fungal infections and overall failure to thrive, and without treatment the condition can be fatal within the first two years of life. The incidence of ADA-SCID is currently estimated to be one in 500,000 live births inthe United Statesand between one in 200,000 and one in 1 million inEurope.3OTL-101 is an autologous,ex vivo,hematopoietic stem cell-based gene therapy for the treatment of patients diagnosed with ADA-SCID being investigated in multiple clinical trials inthe United StatesandEurope, including a registrational trial at theUniversity of California, Los Angeles(UCLA). OTL-101 has received orphan drug designation from theU.S. Food and Drug Administration(FDA) and the European Medicines Agency (EMA) for the treatment of ADA-SCID, and Breakthrough Therapy Designation from theFDA.

About WAS and OTL-103Wiskott-Aldrich Syndrome (WAS) is a life-threatening inherited immune disorder characterized by autoimmunity and abnormal platelet function and manifests with recurrent, severe infections and severe bleeding episodes, which are the leading causes of death in this disease. Without treatment, the median survival for WAS patients is 14 years of age. Treatment with stem cell transplant carries significant risk of mortality and morbidities. OTL-103 is anex vivo,autologous, hematopoietic stem cell-based gene therapy developed for the treatment of WAS that Orchard acquired from GSK in April 2018 and has been developed at theSan Raffaele-Telethon Institute for Gene Therapy(SR-Tiget) inMilan, Italy. The global incidence of WAS is estimated to be about 100-260 births per year, with a global prevalence of 2,900-4,700 patients.

About MPS-I and OTL-203Mucopolysaccharidosis type I (MPS-I) is a rare inherited neurometabolic disease caused by a deficiency of the IDUA (alpha-L-iduronidase) lysosomal enzyme required to break down glycosaminoglycans (also known as GAGs or mucopolysaccharides). The accumulation of GAGs across multiple organ systems results in the symptoms of MPS-I including neurocognitive impairment, skeletal deformity, loss of vision and hearing, hydrocephalus, and cardiovascular and pulmonary complications. MPS-I occurs at an overall estimated frequency of one in every 100,000 live births.5There are three subtypes of MPS-I; approximately 60 percent of MPS-I patients have the severe Hurler subtype and, when untreated, these patients rarely live past the age of 10.IdTreatment options for MPS-I include hematopoietic stem cell transplant and chronic enzyme replacement therapy, both of which have significant limitations. Though early intervention with enzyme replacement therapy has been shown to delay or prevent some clinical features of the condition, it has only limited efficacy on neurological symptoms. OTL-203 is anex vivo, autologous, hematopoietic stem cell-based gene therapy being studied for the treatment of MPS-I. Orchard was granted an exclusive worldwide license to intellectual property rights to research, develop, manufacture and commercialize the gene therapy program for the treatment of MPS-I developed by theSan Raffaele-Telethon Institute for Gene TherapyinMilan, Italy.

About Orchard Orchard Therapeuticsis a fully integrated commercial-stage biopharmaceutical company dedicated to transforming the lives of patients with serious and life-threatening rare diseases through innovative gene therapies.

Orchards portfolio ofex vivo, autologous, hematopoietic stem cell (HSC) based gene therapies includes Strimvelis, a gammaretroviral vector-based gene therapy and the first such treatment approved by theEuropean Medicines Agencyfor severe combined immune deficiency due to adenosine deaminase deficiency (ADA-SCID). Additional programs for neurometabolic disorders, primary immune deficiencies and hemoglobinopathies are all based on lentiviral vector-based gene modification of autologous HSCs and include three advanced registrational studies for metachromatic leukodystrophy (MLD), ADA-SCID and Wiskott-Aldrich syndrome (WAS), clinical programs for X-linked chronic granulomatous disease (X-CGD), transfusion-dependent beta-thalassemia (TDT) and mucopolysaccharidosis type I (MPS-I), as well as an extensive preclinical pipeline. Strimvelis, as well as the programs in MLD, WAS and TDT were acquired by Orchard from GSK inApril 2018and originated from a pioneering collaboration between GSK and theSan Raffaele Telethon Institute for Gene TherapyinMilan, Italyinitiated in 2010.

Orchard currently has offices in the UK and the U.S., including London, San Francisco and Boston.

Forward-Looking StatementsThis press release contains certain forward-looking statements about Orchards strategy, future plans and prospects, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements may be identified by words such as anticipates, believes, expects, intends, projects, and future or similar expressions that are intended to identify forward-looking statements.Forward-looking statements include express or implied statements relating to, among other things, the therapeutic potential of Orchards product candidates, including the product candidate or candidates referred to in this release, Orchards expectations regarding the timing of regulatory submissions for approval of its product candidates, including the product candidate or candidates referred to in this release, the timing of announcement of clinical data for its product candidates and the likelihood that such data will be positive and support further clinical development and regulatory approval of these product candidates, including any cryopreserved formulations of such product candidates, and the likelihood of approval of such product candidates by the applicable regulatory authorities. These statements are neither promises nor guarantees and are subject to a variety of risks and uncertainties, many of which are beyond Orchards control, which could cause actual results to differ materially from those contemplated in these forward-looking statements. In particular, the risks and uncertainties include, without limitation: the risk that any one or more of Orchards product candidates, including the product candidate or candidates referred to in this release, will not be successfully developed or commercialized, the risk of cessation or delay of any of Orchards ongoing or planned clinical trials, the risk that prior results, such as signals of safety, activity or durability of effect, observed from preclinical studies or clinical trials will not be replicated or will not continue in ongoing or future studies or trials involving Orchards product candidates, the delay of any of Orchards regulatory submissions, the failure to obtain marketing approval from the applicable regulatory authorities for any of Orchards product candidates, the receipt of restricted marketing approvals, and the risk of delays in Orchards ability to commercialize its product candidates, if approved.Given these uncertainties, the reader is advised not to place any undue reliance on such forward-looking statements.

Other risks and uncertainties faced by Orchard include those identified under the heading "Risk Factors" in Orchards annual report on Form 20-F for the year endedDecember 31, 2018as filed with theU.S. Securities and Exchange Commission(SEC) onMarch 22, 2019, as well as subsequent filings and reports filed with theSEC. The forward-looking statements contained in this press release reflect Orchards views as of the date hereof, and Orchard does not assume and specifically disclaims any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by law.

1Orphanet. SCID due to ADA deficiency.2Whitmore KV, Gaspar HB. Front Immunol. 2016;7:314.3Kwan A, et al. JAMA. 2014;312:729-738.4Sauer AV, et al. Front Immunol. 2012;3:265. 5Beck et al. The Natural History of MPS I: Global Perspectives from the MPS I Registry. Genetics in Medicine 2014, 16(10), 759.

Contacts

InvestorsRenee LeckDirector, Investor Relations+1 862-242-0764Renee.Leck@orchard-tx.com

MediaMolly CameronManager, Corporate Communications+1 978-339-3378media@orchard-tx.com

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Orchard Therapeutics to Present New Registrational Data of Investigational Gene Therapies at the 61st American Society of Hematology Annual Meeting -...

St. Jude Childrens Research Hospital and the National Institutes of Health to present updated MB-107 clinical data for the treatment of X-linked severe combined immunodeficiency

Fred Hutchinson Cancer Research Center to present overview of ongoing MB-106 Phase 1/2 clinical trial

NEW YORK, Nov. 06, 2019 (GLOBE NEWSWIRE) -- Mustang Bio, Inc. (Mustang) (NASDAQ: MBIO), a clinical-stage biopharmaceutical company focused on translating todays medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors and rare genetic diseases, announced today that updated Phase 1/2 clinical data for MB-107 lentiviral gene therapy for X-linked severe combined immunodeficiency (XSCID) have been selected for oral and poster presentations at the 61st American Society of Hematology (ASH) Annual Meeting. ASH will be held December 7-10, 2019, at the Orange County Convention Center in Orlando, FL.

MB-107 is currently being assessed in two Phase 1/2 clinical trials for XSCID: the first in newly diagnosed infants under the age of two at St. Jude Childrens Research Hospital, UCSF Benioff Childrens Hospital and Seattle Childrens Hospital and the second in patients over the age of two who have received prior hematopoietic stem cell transplantation at the National Institutes of Health. Positive Phase 1/2 clinical data from the trial for infants under the age of two were published in the New England Journal of Medicine in April 2019 and positive Phase 1/2 clinical data from the trial in patients over the age of two were published in Science Translational Medicine in April 2016. The U.S. Food and Drug Administration (FDA) granted Regenerative Medicine Advanced Therapy (RMAT) designation to MB-107 for the treatment of XSCID in August 2019.

Manuel Litchman, M.D., President and Chief Executive Officer of Mustang, said, We are extremely pleased that additional clinical data on MB-107, a lentiviral gene therapy for the treatment of XSCID, will be presented in oral and poster sessions at the 2019 ASH Annual Meeting. The curative potential of MB-107 based on previously announced compelling Phase 1/2 data is impressive, and we look forward to working with St. Jude and NIH to advance the development of this important treatment option.

Details of the MB-107 presentations are as follows.

Oral Presentation:Title: Enhanced Transduction Lentivector Gene Therapy for Treatment of Older Patients with X-Linked Severe Combined ImmunodeficiencySession: 801. Gene Therapy and Transfer: Gene Therapies for Non-Malignant DisordersAbstract Number: 608Date and Time: Monday, December 9, 2019, 7:15 a.m. ET Location: Orange County Convention Center, Valencia BC (W415BC)Presenter: Harry Malech, M.D., Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD, USA

Poster Presentation:Title: Lentiviral Gene Therapy with Low Dose Busulfan for Infants with X-SCID Results in the Development of a Functional Normal Immune System: Interim Results of an Ongoing Phase I/II Clinical StudySession: 801. Gene Therapy and Transfer: Poster IAbstract Number: 2058Date and Time: Saturday, December 7, 2019, 5:30-7:30 p.m. ETLocation: Orange County Convention Center, Hall BPresenter: Ewelina Mamcarz, M.D., Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Childrens Research Hospital, Memphis, TN, USA

In addition, Mustangs collaborator Fred Hutchinson Cancer Research Center will present a poster about the ongoing Phase 1/2 clinical trial investigating the safety and efficacy of MB-106 CD20-targeted CAR T for high-risk B-cell non-Hodgkin lymphomas.

Details of the MB-106 presentation are as follows.

Poster Presentation:Title: CD20 Targeted CAR-T for High-Risk B-Cell Non-Hodgkin LymphomasSession: 704. Immunotherapies: Poster IIAbstract Number: 3235 Date and Time: Sunday, December 8, 2019, 6-8 p.m. ETLocation: Orange County Convention Center, Hall BPresenter: Mazyar Shadman, M.D., M.P.H., Fred Hutchinson Cancer Research Center, Seattle, WA, USA

Copies of the abstracts can be viewed online through the ASH website at http://www.hematology.org.

About Mustang BioMustang Bio, Inc. (Mustang) is a clinical-stage biopharmaceutical company focused on translating todays medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors and rare genetic diseases. Mustang aims to acquire rights to these technologies by licensing or otherwise acquiring an ownership interest, to fund research and development, and to outlicense or bring the technologies to market. Mustang has partnered with top medical institutions to advance the development of CAR T and CRISPR/Cas9-enhanced CAR T therapies across multiple cancers, as well as a lentiviral gene therapy for XSCID. Mustang is registered under the Securities Exchange Act of 1934, as amended, and files periodic reports with the U.S. Securities and Exchange Commission. Mustang was founded by Fortress Biotech, Inc. (NASDAQ: FBIO). For more information, visit http://www.mustangbio.com.

ForwardLooking Statements This press release may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended. Such statements include, but are not limited to, any statements relating to our growth strategy and product development programs and any other statements that are not historical facts. Forward-looking statements are based on managements current expectations and are subject to risks and uncertainties that could negatively affect our business, operating results, financial condition and stock value. Factors that could cause actual results to differ materially from those currently anticipated include: risks relating to our growth strategy; our ability to obtain, perform under and maintain financing and strategic agreements and relationships; risks relating to the results of research and development activities; risks relating to the timing of starting and completing clinical trials; uncertainties relating to preclinical and clinical testing; our dependence on third-party suppliers; our ability to attract, integrate and retain key personnel; the early stage of products under development; our need for substantial additional funds; government regulation; patent and intellectual property matters; competition; as well as other risks described in our SEC filings. We expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in our expectations or any changes in events, conditions or circumstances on which any such statement is based, except as required by law.

Company Contacts:Jaclyn Jaffe and William BegienMustang Bio, Inc.(781) 652-4500ir@mustangbio.com

Investor Relations Contact:Daniel FerryLifeSci Advisors, LLC(617) 430-7576daniel@lifesciadvisors.com

Media Relations Contact:Tony Plohoros6 Degrees(908) 940-0135tplohoros@6degreespr.com

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Mustang Bio Announces MB-107 Lentiviral Gene Therapy and MB-106 CD20-Targeted CAR T Data Selected for Presentations at 61st American Society of...

UniQure has started screening patients for its phase 1/2 trial of gene therapy AMT-130 for Huntingtons disease, and says it hopes to start treating the first subject in late 2019 or early 2020.

The start of the trial will give the Dutch biotech a second gene therapy in clinical trials to go along with AMT-061 (etranacogene dezaparvovec), its one-shot therapy for haemophilia B which is in phase 3 testing.

Huntingtons disease is a rare, devastating neurodegenerative genetic disorder that affects motor function and causes severe cognitive decline, eventually leading to total physical and mental deterioration.

The disease is caused by a mutation in the gene coding for huntingtin which causes the formation of an abnormally long and unstable form of the protein that is chopped up by cellular repair mechanisms into smaller, toxic fragments.

AMT-130 consists of an adeno-associated virus (AAV) vector carrying a micro-RNA that is designed to switch off the huntingtin gene and prevent it from producing the mutant form of the protein.

In annual models, a single dose of AMT-130 was shown to reduce huntingtin levels, initially in deep structures of the brain like the striatum that are affected first by the disease and spreading to higher structures such as the cerebral cortex that come into play later in the course of Huntingtons.

The phase 1/2 trial will be conducted in around 26 patients at several clinical sites, who will be treated either with a single dose of the gene therapy directly into the striatum or an imitation procedure with no drug.

The main outcome measures will be safety and the persistence of AMT-130 in the brain, but the trial will look at clinical outcomes including motor, cognition, and behavioural function over a five-year period. First results should be available in 2022.

Other companies notably Wave Life Sciences/Takeda and Ionis/Roche are developing antisense drugs to switch off production of huntingtin, but these would require continuous dosing in order to be effective.

The announcement was made in UniQures third-quarter results update, at which it also said it had completed enrolment of 62 patients into its HOPE-B trial of haemophilia B therapy AMT-061, setting it on course for a readout in 2020 and possible filing in early 2021.

In July, UniQure reported phase 2b results with AMT-061 showing that it could restore Factor IX levels into the normal range for two out of three subjects.

UniQure was the first company to launch a gene therapy onto the market in Europe, introducing Glybera (alipogene tiparvovec) for familial lipoprotein lipase deficiency (LPLD) in 2012, but the product was a commercial flop and was withdrawn from sale in 2017.

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UniQure presses go on Huntington's gene therapy trial - - pharmaphorum

It's a very early report, from just two patients, only a few months after treatment. But UMass Medical School Dean Terence Flotte this week shared at a conference what could be landmark news about a terrible genetic disease: Two young patients with Tay-Sachs disease showed no ill effects from a new gene therapy that aims to correct the defect at the heart of the disease.

One of them, treated at just 7 months, has appeared to stabilize instead of following the typical quick slide toward death by age 4.

"It seems right now that she's not degenerating," Flotte said. "But I would say it's too early to say that definitively."

Tay-Sachs is a fatal disorder that tends to affect babies of Eastern-European Jewish ancestry, along with other ethnicities including Cajun and Irish. They usually seem to develop normally for the first few months, but as the disease kills off their nerve cells, they lose the ability to move or breathe on their own.

Flotte says the brain MRI of the baby treated at 7 months looks encouraging, and a clinical trial in more than a dozen patients is expected to begin soon.

Edited highlights of our conversation follow.

You've just presented at a gene therapy conference. What did you report?

We reported the first two patients ever treated with gene therapy for Tay-Sachs disease two infants treated at UMass Memorial Medical Center. What we presented was that these two patients were both treated safely. The vector[the engineered virus that delivered the genetic fix] was administered directly into the brain.

We saw bio-activity, which basically means that we partially restored the enzyme that is missing in Tay-Sachs disease. And the patients were able to tolerate that safely. Also, in one of the cases, with the patient treated early in the course of the disease, we've seen some stabilization of the patient's condition.

What do you mean by stabilization?

One of the patients was treated at 2-1/2 years of age, and that patient had really advanced disease. And we've seen the biochemical effect, but really no clinical effect.

The second patient was treated between 6 and 7 months of age, and in that patient, it appears, although it's still very early, that the patient may be having some continued preservation of her ability to sit up and control her muscles. She's basically seeming to have a more gradual progression at the current time, really being stable at a time point when we might be expecting her to lose some of these developmental milestones.

The best way to explain it is that if a normal infant begins to sit up at around six months of age, Tay-Sachs babies do that, but then they tend to lose the ability to sit up some time between 10 months of age and maybe 15 months of age. The last time we assessed the patient, at 10 months of age (and she's now close to 12 months of age), she seems to not be losing any of the strength required to sit up. We have her older siblings for comparison, and it's encouraging that she seems to be progressing less than they did. We also saw some encouraging signs on her brain MRI.

It seems right now that she's not degenerating. But I would say it's too early to say that definitively. If you think about the progression of development as the slope of a line, the line is flat at this point. It's not going up or going down. The next assessment will be very important, to see whether she's continuing to be flat, which would be a major benefit, or whether she's regressing but just a little bit more slowly.

When you say flat, she's also not advancing as a typical child would?

That is right. It looks like preservation of function rather than gaining. But her oldest sibling died before his third birthday. So considering how fast these patients can decline, a preservation or stabilization could be very important.

It's important to note, too, that we are just at the very beginning. The first patient got the vector injected just into the fluid around the brain, the cerebro-spinal fluid, not into the brain tissue. The second patient got a portion of it injected into the thalamus, which projects out to the entire brain tissue. It's kind of the relay center of the brain, and it can actually ship enzyme out all over the brain.

No one's ever tried that in a humans before, so that was really an important milestone, that intra-thalamic injection. As the trials progress, a larger dose will be injected into the thalamus.

Why has there never been an injection into the thalamus in humans before? What's the challenge?

One challenge is that it is a completely irreplaceable structure. Effectively, all motor and sensory function relays through the thalamus. So if you were to have bleeding or injury to the thalamus, it could cause a stroke or a persistent pain syndrome. So it is somewhat risky. On the other hand, when you're dealing with the infantile form of Tay-Sachs, it's so tragic that it warrants a rather risky approach.

It's been done many times in animals, but this was the first time doing it in patients.

What's next? A full clinical trial?

Yes, Axovant has licensed the program. This first program was done all at UMass Medical School and UMass Memorial Medical Center, and the program is now licensed to Axovant, and they are planning in the near future to do a Phase 2 trial, which we will still be involved in.

It will entail increasing the proportion of the vector injected into the thalamus, so that we will get to the exact proportional dose that was used to correct all of the different animal models that have been treated: a mouse, a sheep and a cat model.

UMassMed Magazine has more on the school's Tay-Sachs gene therapy work here.

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Early Report: Baby Treated With Gene Therapy For Deadly Tay-Sachs Disease Appears To Stabilize - WBUR

PTC Therapeutics gene therapy candidate PTC-AADC (formerly AGIL-AADC) provided clinically meaningful and sustained improvements in motor, cognitive, and language milestones in children with aromaticl-amino acid decarboxylase (AADC) deficiency up to five years following the one-time treatment, trial analyses show.

A single dose of PTC-AADC delivered into the brain lowered the number of oculogyric crises (involuntary upward eye movement) and recovered childrens weight, as well as improved their ability to sit, walk, and talk over a five-year period.

PTC Therapeutics will request marketing approval soon, with plans to submit a Biologics License Application (BLA) to the U.S. Food and Drug Administration later this year.

The new findings were shared at the 48th Annual Meeting of the Child Neurology Society (CNS), held recently inCharlotte, NC. Data were presented in two posters titled AGIL-AADC gene therapy results in sustained improvements in motor and developmental milestones through 5 years in children with AADC deficiency (page S136), and Safety and Improved Efficacy Outcomes in Children With AADC Deficiency Treated with AGIL-AADC Gene Therapy: Results From Three Clinical Trials (page S148).

We are excited to see the transformational effects in AADC deficiency patients in this long-term study as patients with severe AADC deficiency never achieve the ability to sit, walk or talk, Stuart Peltz, PhD, PTC Therapeutics CEO, said in a news release.

We are on track to submit a BLA to the FDA by the end of the year and are proud to be on the verge of bringing the first commercial treatment for AADC deficiency patients which is in line with our mission of bringing clinically differentiated treatments to patients with rare disorders, he added.

PTC-AADC is an investigationalgene therapy designed to deliver a healthy copy of the DDCgene the faulty gene in patients with AADC deficiency to nerve cells. The goal is to restore the production of AADC enzyme which is missing because of this genetic defect and counter the symptoms caused by this deficiency.

A working copy of DDC is passed on to cells through an adeno-associated virus that is modified to be non-infectious.

The gene therapy is injected via a surgical procedure into an area of the brain called the putamen. This region is crucial for producing chemical messengers (neurotransmitters) such as dopamine and serotonin, which are involved in movement control but fail to be produced in patients with the disease.

In one of its presentations, PTC Therapeutics provided the most extensive study of PTC-AADCs efficacy and safety to date. It conducted a joint analysis of three open-label clinical trials, which together enrolled 26 children with AADC deficiency, ranging in age from 21 months to 8.5 years.

At the beginning of these studies, children had no full head control and were unable to sit, stand, or walk. They were given a single dose of PTC-AADC (total dose, 1.81011 vector genomes, vg) which was injected into the patients putamen during a single surgery session.

One year after treatment, the patients mean body weight had increased from 12.0 kg to 15.2 kg, and there was a reduction in the frequency of involuntary upward eye movements characteristic of the disease (oculogyric crises).

Dyskinesia (uncontrolled erratic movements) was a common adverse event, affecting 23 of 26 patients, but most events were mild or moderate in severity, and all cases had resolved within 10 months from dosing.

In addition to failing to reach key developmental milestones, such as walking and talking, children with AADC deficiency can experience severe symptoms that affect their everyday lives. These symptoms can include episodes of oculogyric crises, which can last for minutes or hours and involve sustained upward movement of the eyes, involuntary movements of the neck, tongue protrusions and jaw spasms, which can be very distressing for patients and their families, said Claudio Santos, MD, senior vice president of global medical affairs at PTC Therapeutics.

The post-treatment data presented at CNS confirm reductions in the number of patients experiencing oculogyric crises, suggesting that this gene therapy treatment has the potential to make a real difference in the lives of patients with AADC deficiency, he added.

A second analysis demonstrated that PTC-AADCs benefits can hold up to five years after treatment, the longest data available for any investigational therapy for AADC deficiency.

The findings came from the latest follow-up data of two open-label clinical studies: AADC-1601 (NCT02926066), a trial in which patients were enrolled under individual compassionate use consents, and AADC-010 (NCT01395641).

Together, the studies enrolled 18 patients who were 21 months to 8.5 years old. None had full head control or could sit unassisted or stand. In this update, all patients had two years of follow-up data, and eight of these patients had five years of post-treatment data.

Prior results shared by PTC Therapeutics showed that at two years, eight patients (44%) had achieved full head control, six (35%) were able to sit unassisted, and three (17%) could stand without support. Among the eight patients followed for five or more years, four (50%) had full head control, four (50%) could sit unassisted, and two (25%) could stand without support.

The latest results continue to support these meaningful improvements in motor, cognitive, and language skills, and importantly, show that effects from a single dose of PTC-AADC can last at least five years post-treatment.

In addition, all treated patients continued to demonstrate sustained production of dopamine in the body, one of the neurotransmitters missing in patients with AADC deficiency.

No new safety signals were observed during these long-term evaluations.

Ana is a molecular biologist enthusiastic about innovation and communication. In her role as a science writer she wishes to bring the advances in medical science and technology closer to the public, particularly to those most in need of them. Ana holds a PhD in Biomedical Sciences from the University of Lisbon, Portugal, where she focused her research on molecular biology, epigenetics and infectious diseases.

Continued here:
AADC Improvements Sustained with Gene Therapy PTC-AADC, Data Say - AADC News

The U.S. National Institutes of Health (NIH) wants to cure HIV and sickle cell disease with gene therapies, and will invest $100 million over the next four years towards that goal, the agency announced today (Oct. 23).

For this effort, the NIH will partner with The Bill & Melinda Gates Foundation, which will also invest $100 million.

Critically, the partnership aims to make the therapies affordable and accessible to people around the world, particularly in developing countries, where the burden of these diseases is greatest.

"This is a very bold goal, but we have decided to go big," Dr. Francis Collins, director of the NIH, said in a news conference today.

The effort aims to have the therapies ready for testing in clinical trials in the U.S. and sub-Saharan Africa within the next seven to 10 years.

Related: 10 Amazing Things Scientists Just Did with CRISPR

The majority of the 38 million people with HIV live in developing countries, with two-thirds living in Sub-Saharan Africa. For sickle cell disease, the majority of cases also occur in Sub-Saharan Africa.

The NIH has been trying to find a cure for HIV for "decades and decades," said Dr. Anthony Fauci, director of The National Institute of Allergy and Infectious Diseases. Although current treatments with antiretroviral therapy (ART) are effective at suppressing the virus in the body, they are not a cure, and must be taken everyday. What's more, there are millions of people with HIV who don't have access to ART treatment.

Although scientists are working to develop gene-based cures for HIV, these approaches are often costly and would be difficult to implement on a large scale, Fauci said. For example, some of these therapies take cells out of a patient's body and then re-infuse them, an expensive and time-consuming intervention.

For this reason, the new collaboration will focus on developing cures that use "in vivo" approaches, meaning they happen inside the body, Fauci said. One example of this could be to remove the gene for the CCR5 receptor, which HIV uses to get inside cells. Another idea is to excise the HIV "proviral" DNA that has copied itself into the human genome and lurks in the body even after years of treatment.

Similarly, for sickle cell disease, the goal would be to develop an in vivo therapy that could repair the genetic mutation that causes the disease. This would require a gene-based delivery system that could selectively target the mutation.

"Beating these diseases will take new thinking and long-term commitment. I'm very pleased to see the innovative collaboration announced today, which has a chance to help tackle two of Africa's greatest public health challenges," Matshidiso Rebecca Moeti, the World Health Organization's Regional Director for Africa, said in a statement.

Still, much work would be needed to make sure these therapies are safe and effective.

"It is very clear we have a ways to go, which is why this is a 10 year effort to try and take that promise and turn it into a reality," Collins said.

Earlier this year, the Trump Administration announced a plan to end the HIV epidemic in the U.S. in 10 years.

Originally published on Live Science.

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Can Gene Therapy Cure HIV? US Gov't. Is Banking $100 Million On It. - Livescience.com

The National Institutes of Health (NIH) announced a partnership with the Bill and Melinda Gates Foundation on Wednesday to fund the development of targeted cures for HIV and sickle cell disease with a view to helping people in developing countries using gene therapy. With most of the populations affected by each disease residing in sub-Saharan Africa, treatments are being sought with regional conditions in mind.

The NIH and the Gates Foundation are investing $100 million in the initiative to develop low-cost gene therapies. The announcement follows President Donald Trump's pledge in his 2019 State of the Union address that the United States would eradicate HIV within the next decade. The Trump administration has also tried to draw more attention to sickle cell disease (SCD) in the past few years, according to a press release from NIH.

Sickle cell disease is a blood disorder that can cause anything from mild pain to heart failure. Human immunodeficiency virus (HIV) is a communicable disease that, if left untreated, wipes out the immune system. People with SCD inherit the disease from their parents, whereas HIV is acquired through blood contamination with certain bodily fluids of an infected person. While the mechanisms of transmission are different, both diseases are carried in the genome of infected individuals. Globally, both diseases also disproportionately impact individuals in lower-income communitiesand scientists believe that both could be combatted with gene-based treatments.

The past few years have seen unprecedented strides toward cures for these two diseases using gene therapy, which the NIH defines as experimental technique wherein doctors insert genes into a patient's cells so their body can more effectively resist a disease. It can include inserting a healthy variant of a gene to replace the unhealthy copy that causes a disease, or placing an entirely new gene in the body to fight the disease.

"Dramatic advances in genetics over the last decade have made effective gene-based treatments a reality... Yet these breakthroughs are largely inaccessible to most of the world by virtue of the complexity and cost of treatment requirements, which currently limit their administration to hospitals in wealthy countries," the press release states. The new initiative will focus on developing treatments that can be delivered in "low-resource settings."

Speaking on the initiative's viability, Dr. Ronald Mitsuyasu, a professor of medicine in hematology-oncology at the University of California, Los Angeles with more than 25 years of experience in HIV clinical trials research, told Newsweek that this sort of solution has been attempted in the past, but gene therapy hasn't yet proved successful in treating HIV.

"There have been several attempts to use gene therapy for HIV by either incorporating genes that suppress HIV genes, producing decoys for various viruses required processes needed for viral replication, or substituting inactive genes for functional genes of HIV," he said.

But those living in developing countries have not had as many chances to benefit from these solutions as those living in places like the U.S., according to the press release.

"SCD and HIV are major burdens on health in low-resource communities around the world," the press release read. "Approximately 95% of the 38 million people living with HIV globally are in the developing world, with 67% in sub-Saharan Africa, half of whom are living untreated. Fifteen million babies will be born with SCD globally over the next 30 years, with about 75% of those births occurring in sub-Saharan Africa."

Further, the prediction indicates that three-quarters of those infants will be born into low-income countries and communities. Between 50 and 90 percent of babies born with the disease in sub-Saharan African countries will die before the age of five, according to the release.

So, the NIH and the Gates Foundation's initiative aims to identify potential cures for both diseases as well as partner with groups in Africa to identify candidates on whom these new cures can be tested.

We are losing too much of Africa's future to sickle cell disease and HIV. Beating these diseases will take new thinking and long-term commitment. I'm very pleased to see the innovative collaboration announced today, which has a chance to help tackle two of Africa's greatest public health challenges." Matshidiso Rebecca Moeti, M.B.B.S., the World Health Organization's regional director for Africa said of the initiative.

Mitsuyasu said he agreed that continued investigation into gene-based cures would eventually yield worthwhile results. "I personally believe that it should be possible to ultimately develop a gene therapy approach to overcome ... HIV," Mitsuyasu said. "Continued scientific developments in the field of gene therapy will eventually allow for the conquest of most genetic and viral gene integrated diseases."

See more here:
Gates Foundation, NIH Bet on Gene Therapy To Bring Cheap HIV and Sickle Cell Cures to Sub-Saharan Africa - Newsweek

Gene therapy is a promising therapeutic procedure for genetic disorders or diseases in which defective genes are corrected, replaced, or inactivated.

In the case of adrenoleukodystrophy (ALD) a genetic disorder caused by mutations in the ABCD1 gene that damages the myelin sheath around nerve cells gene therapy may benefit patients prior to the onset, or during the early stages, of the disease by stopping the progression of demyelination. However, the therapy cannot be beneficial after the disease has worsened significantly.

Gene therapy works by introducing the correct gene sequence into cells. Since genetic material cannot enter the cell on its own, the correct gene sequence needs to be delivered using a vector. This vector can be a modified virus that has been engineered to remove its pathogenic genetic material so that it cannot cause disease, but is still able to transfer the correct gene sequence to the host cell.

The vector can be directly injected into the patients body or into host cells grown in the laboratory and then transplanted back into the patient. Upon successful viral transfer, the host cell should be able to produce the functional protein.

In ALD, the clinician first takes out the patients own stem cells (autologous) and then inserts the correctABCD1 gene sequence into these cells using a viral vector in the laboratory. The corrected stem cells that are able to produce the functional ALD protein are then implanted back into the patients body so they may develop into nerve cells in the brain. Since the patients own cells are being used, there are fewer risks than when donor stem cells are used.

Lenti-D,an investigational gene therapy developed by Bluebird Biois currently being studied in a Phase 2/3 clinical trial (NCT01896102) in the U.S., the U.K., and France. The study aims to evaluate the safety and effectiveness of Lenti-D in boys, up to 17 years old who havecerebral adrenoleukodystrophy (CALD). Based on the preliminary data from this study,the U.S. Food and Drug Administration (FDA)designated Lenti-D a breakthrough therapy for the treatment of CALD in May 2018.

A Phase 1/2 clinical trial (NCT02559830) is recruiting patients with ALD at the Shenzhen Second Peoples Hospital in Guangdong, China. The study aims to assess the safety and effectiveness of transplanting patient-derived bone marrow stem cells, which have been genetically-corrected using a lentiviral vector, for the treatment of ALD.

Another Phase 1/2 clinical trial (NCT03727555) at the Shenzhen Geno-Immune Medical Institute also in Guangdong, China is recruiting 10 patients with ALD. The study aims to evaluate the safety and effectiveness of a lentiviral vector carrying the healthy ABCD1 gene (TYF-ABCD1) injected directly into the patients brain for the treatment of ALD.

***

Adrenoleukodystrophy News is strictly a news and information website about the disease. It does not provide medical advice, diagnosis or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.

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zge has a MSc. in Molecular Genetics from the University of Leicester and a PhD in Developmental Biology from Queen Mary University of London. She worked as a Post-doctoral Research Associate at the University of Leicester for six years in the field of Behavioural Neurology before moving into science communication. She worked as the Research Communication Officer at a London based charity for almost two years.

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Gene Therapy - Adrenoleukodystrophy News

Sigmund Freud never uttered the word neuroscience. Neither did Santiago Ramn y Cajal. It was biophysicist Francis Schmitt who grafted neuro with science in 1962 when he established the Neurosciences Research Program at MIT. The new moniker was intended to encompass a merging of relevant neuro disciplines, ranging as far afield as physiology, psychology, immunology, physics and chemistry.

Brains and behaviors have been scrutinized for millennia. But as psychology blogger Vaughn Bell has pointed out, the 1960s marked a shift in perspective. Neuroscience was the formal name given by Schmitt. But the period represented the beginnings of a neuroculture, that put brain science on a pedestal even leading to the familiar meme proclaiming my brain made me do it. One example was rooted in pharmaceutical companies development of psychiatric drugs that resulted in their investing millions both into divining the neurochemistry of experience and into massive marketing campaigns that linked brain functions to the psyche, Bell notes.

The field received an adrenaline boost precisely 50 years ago with the founding of the Society for Neuroscience, allowing Schmitts collaborative vision to be globally shared. SFNs first annual meeting in 1971 drew 1,395 attendees to Washington, D.C. This years wrapped up on October 23, bringing more than 27,500 to Chicagoand the annual numbers have occasionally topped 30,000. SFN now boasts 37,000 members from more than 95 countries.

Anything to do with the topic brain found a place among the more than 14,500 abstracts of unpublished work presented in 2019 on themes ranging from the mechanisms of sleep to cocaine craving. But the society has had to adapt its U.S.-based get-together this year to respond to a world of closing national borders.

Some members were unable to get visas to enter the U.S., in part because of the U.S. travel ban, which includes broad restrictions on visits from Iran,Libya,Syria,Yemen,Somalia,North KoreaandVenezuela. In response, SFN initiated a program called Science Knows No Borders in which would-be attendees had a PDF printed out and posted or else PowerPoints and a recorded talk proferred in their absence. An Iranian doctoral student, Shahrzad Ghazisaedi, from University of Toronto, a neuropathic pain researcher, was one among about a dozen people who took advantage of the program (not all of them necessarily subject to the travel ban). Her poster entitled Sex specific DNA methylation pattern in spinal cord and periaqueductal gray (PAG) before and after peripheral injury could be seen Monday afternoon by attendees during a session entitled Central Nervous System Mechanisms in Pain.

For those who actually were able to make it, a range of topics caught the eye: research on nervous system immune cells implicated in a range of disorders, a gene therapy for converting the brains support cells to neurons for treating Alzheimers, a prosthetic forearm that provides a sense of touch and synchronization of brain waves between two people holding hands. Also, a group of scientists got together to start planning a test in humans to determine which of two theories of consciousness is more likely to be correct.

Another theme that stood out was the challenge of working with miniaturized brain facsimiles, called organoids, that show promise of more faithfully replicating what goes on in the human organ than a mouse brain can. Organoids, though, are too close to a Mary Shelley creation for some people. At the conference, members of the Green Neuroscience Laboratory in San Diego called for a research moratorium on organoid tissue implanted into mice or other animals, a technique already in use. In an abstract for their talk, they ventured that the technology is perilously close to crossing an ethical Rubicon in which organoids may experience sentient activity and behavior. The group advocates that methods should be developed to ascertain whether any given organoid has the ability to sense and react to its surroundings.

At a press conference of scientists who grow the five-millimeter-diameter mini brains, ethical debate was welcomed, but the researchers also tried to place their work in context. Paola Arlotta from Harvard showed a video of organoids, at most the size of small peasnothing resembled an imagined brain-in-a-dish. The brain bits are also difficult to work withchallenging to grow reproducibly and their cells do not mature to become an exact replica of human cells, but instead end up with a confused identity. Researchers think the kinks can be worked out, but, even then, that may not pave the way for growing full-sized organs.

Most scientists are not interested in figuring out how to grow a human brain in a dish, says Arnold Kriegstein, of the University of California, San Francisco. They are more interested in a particular disease mechanism or a certain process they want to study. And that really requires a reductionist system. It's too complicated to study an intact human brain. What you really want are the important elements, which you can dissect and delve into in great detail in the laboratory.

Everyone agreed that discussion about mini-brain ethics is warranted. But as far as existential threats, tiny tissue nuggets run amok may not be at the top of a list that includes antibiotic resistance, climate change and self-driving cars engineered with internals that produce a loss of control that resembles a wayward 737 MAX.

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Society for Neuroscience at 50 Delves into Mini Brains, Gene Therapy, Prosthetics and All Else Related to Our Three-Pound Wonder - Scientific American