However, for Duchenne muscular dystrophy gene therapies, the size of the dystrophin gene is a problem. The company has two approved chimeric antigen receptor (CAR T) cell therapies in hematologic malignancies that use two distinct targets targeting separate blood cancers. Sarepta's gene therapy aims to tackle Duchenne muscular dystrophy. It has a pipeline of in vivo and ex vivo therapies. DMD is the most frequent type of muscular dystrophy that develops in childhood and primarily affects men. As the disease progresses the most affected individuals require a wheelchair by reaching adolescence. All rights reserved.
The leading companies developing gene therapy candidates for DMD are Sarepta Therapeutics, Roche, Pfizer, Solid Biosciences, and Regenxbio.
Pfizers PF-06939926 is an investigational gene therapy for Duchenne Muscular Dystrophy treatment. Graphite Bio is building on CRISPR technology and working with the cells natural DNA repair processes to rewrite genes. The only Duchenne Muscular Dystrophy treatment available are steroids like dexamethasone and gene-targeting therapies including exon skipping from Sarepta Therapeutics and NS Pharma for two small subsets of patients. The
Duchenne muscular dystrophy (DMD) is a fatal condition caused by a single gene mutation on the X-chromosome being X-linked means only males suffer In May 2022, four companies, Pfizer, Sarepta, Genethon and Solid Biosciences, were all observing serious side effects in their gene therapy clinical trials for DMD. This microdystrophin encodes a functional protein surrogate expressed in muscles and helps stabilize essential associated proteins such as neuronal nitric oxide synthase (nNOS). The FDA has accepted Roche and Sareptas Biologic License Application for the accelerated approval of SRP-9001 (delandistrogene moxeparvovec), an An impairment loss is when an asset depreciates in fair market value on the companys financial statements. Duchenne muscular dystrophy (DMD) is a fatal condition caused by a single gene mutation on the X-chromosome being X-linked means only males suffer from the disease. Sarepta Therapeutics said topline results from Part 2 of its study SRP-9001-102, an ongoing, randomized, double-blind, placebo-controlled clinical trial to evaluate the safety, efficacy and tolerability of a single dose of its gene therapy for the progressive neuromuscular condition Duchenne muscular dystrophy, showed statistically Terry Horgan, the primary patient in an N-of-1 clinical trial evaluating a CRISPR-based gene therapy for the treatment of Duchenne muscular dystrophy (DMD), has died, according to an announcement from Cure Rare Disease, the nonprofit biotech sponsoring the trial.
Cell and gene therapy companies also aim to cure common forms of blindness and restore sight in patients with inherited retinal diseases. The field continues to multiply in size. BioSpace sat down with Sharon Hesterlee, Ph.D., chief research officer at the Muscular Dystrophy Association (MDA), to talk about the history and challenges of developing gene therapy for DMD and the DMD gene therapy field as a whole, including Pfizers and Sarepta Therapeutics latest clinical data. SRP-9001 was safe and well-tolerated up to one-year post-administration. Specialized blood tests (such as creatine kinase) are also used to assess the presence and amounts of certain proteins in muscle (immunohistochemistry). HuCo kidney, HuCo heart, HuCo islet cells, HuCo liver perfusion. The therapeutic candidate acts by targeting Beta-1, 4 N-acetylgalactosaminyltransferase 2 (GALGT2). Moreover, a thorough clinical assessment, a complete patient history, and a number of specialist diagnostics, including molecular genetic tests, are used for Duchenne Muscular Dystrophy diagnosis. Operations, Competitive Intelligence, Competitive Landscaping, and Mergers & Acquisitions. He is currently a Research Associate Professor in the Department of Physiology and Biophysics at the University of Washington. The earlier you treat, the better, but its hard to measure benefit if the children are not yet manifesting a lot of symptoms, so you want to test the children at a stage when theyre progressing, said Hesterlee. Focuses on clinical-stage gene therapy. Founded in 1995, Sangamo Therapeutics is a biotech company based in Richmond, California that focuses on developing gene therapies for rare genetic diseases and cancer. The BLA was supported by data from three studies: SRP-9001-101, SRP-9001-102 and SRP-9001-103. The FDA soon put the Phase Ib study under clinical hold. Duchenne muscular dystrophy effects all muscle cells, so an ideal therapy should target the whole body. In May, Pfizer, Sarepta, Solid and Genethonjoined armsto investigate why they were all being tripped up by serious safety concerns. Reference: Barry Byrne, Joe Kornegay, et al., Assessment of systemic AAV-microdystrophin gene therapy in the GRMD model of Duchenne muscular dystrophy, Science Translational Medicine (2023), DOI: 10.1126/scitranslmed.abo1815, Feature image: The protein dystrophin. Importantly, our platform is Not Restricted By Gene Size. It is also developing therapies for blood stem cell, immuno-oncology and regenerative medicine. Participants in Part 2 of Study SRP-9001-102 scored 2.0 points higher on the mean North Star Ambulatory Assessment (NSAA) 48 weeks after SRP-9001 treatment compared to a pre-specified matched external control cohort (p value=0.0009). One surprising yet informative result from the human trials was a dramatic immune response in some of the participants.
The disease is universally fatal. The factors driving this growth are the newborn screening of DMD, increasing awareness programs, upcoming launches and approvals, and robust pipeline activity in the gene therapy for DMD. WebWhilst microdystrophin gene transfer using AAV vectors shows extremely impressive therapeutic success so far in large animal models of DMD, translating this advanced Gene therapy is an umbrella term for a range of therapies that target the genetic underpinnings of disease. Using this model, they found that delivering intramuscular shots only targets a specific area and provokes an immune response. Check out the MDAs Facebook Live Q&A event MDA Frontline COVID-19 Response: Back-to-School in the Midst of COVID-19 Concerns for the Neuromuscular Disease Community with Dr. Christopher Rosa and Justin Moy. Tune in live this Friday, July 31 at 3pm ET to join the discussion. Jeff is an internationally recognized leader in the gene therapy and muscular dystrophy fields and has been a pioneer in AAV micro-Dystrophin gene therapy research and clinical development for DMD. Following this major safety event, the uncertainty surrounding PF-06939926s future could potentially pave the way for Sareptas continued dominance in the field. The companys late-stage clinical pipeline is targeting acute graft versus host disease, inflammatory bowel disease, acute respiratory distress syndrome, chronic low back pain and chronic heart failure reduced ejection fraction. Roughly 1 in 5000 males are born with this condition and there is currently no cure, with the median age of survival 23 years. The company previously reported 1-year data for the same measures in March 2021. Vertex has acquired Exonics and has a partnership with CRISPR Therapeutics to develop a gene-editing platform for Duchennes muscular dystrophy (DMD) and myotonic dystrophy (DM1). Breyanzi (lisocabtagene maraleucel), Abeam (idecabtagene vicleucel). The drug in question, GS-1811 (formerl AbbVie Secures Fourth FDA Approval for Vraylar AbbVie has received its fourth FDA approval for Vraylar, adding major depressive disorder (MDD) adjunctive therapy to a list that includes schizophrenia and manic and depressive episodes in bipolar disorder. Without dystrophin, the muscle cells suffer from microtears, leading to their demise and progressive muscle wasting. The platform supports the engineering of almost all cell types, including human primary cells and with any molecule. Advances in genetic engineering methods have enabled the development of effective gene therapy methods for various diseases based on adeno-associated viruses (AAVs). Another challenge hinges on the fact that the gene is delivered using a virus, making the gene therapy an immunization in a way. Genetically, DMD is due to null mutation of the dystrophin gene, one of the largest genes in the genome. They have trouble walking, arent walking as well as their peers, and cant jump, Hesterlee commented. Life-threatening severe DMD complications may eventually develop, such as cardiomyopathy and respiratory difficulties. The biotech specializes in creating gene therapies for severe genetic disorders and cancer. Because of its ability to target muscle tissue, the AAV9 capsid was chosen as the delivery mechanism and is administered intravenously. Our list of prominent cell and gene therapy companies includes top-tier Big Pharma companies as well as smaller privately-held companies. Currently, Matthew is a Venture Partner at Medicxi. Founded more than a decade ago, Bluebird Bio has administered its therapies to more than 170 patients across eight clinical trials. The first U.S. human gene therapy trial directed at Duchenne muscular dystrophy (DMD) was launched yesterday at Columbus (Ohio) There are currently four companies who have DMD gene therapy products that have been given to boys with Duchenne, and three of the companies have ongoing studies in the USA. omidubicel, GDA-20, GDA-301, GDA-401, GDA-501, GDA-601. Gene therapy replaces the mutated gene with a copy using whats called a vector to bring a working copy of the gene into a cell. Its proprietary capsid could expand the reach of gene therapy for diseases conventionally untreatable with conventional capsids. Feb 18, 2022 | Reading Time: 8 minutes. Another component provides stability in the circulation and assists in movement from blood vessels to the muscle. They are currently developing gene therapies for a range of diseases, including Alzheimer's disease and spinal muscular atrophy. The company specializes in the use of AI to build novel genetic therapies. Sarepta's gene therapy aims to tackle Duchenne muscular dystrophy. AvroBio focuses on lyosomal disorders. DMD starts to show its effects during early childhood. The company aims to develop therapies for neurological disorders and other diseases. AAV9 is a type of AAV that is particularly good at getting into muscle cells. Also, many people already have preexisting immunity to AAV, which may prevent them from ever receiving this gene therapy. Within the context of Duchenne and other rare diseases, its a very robust sample size and one that will grow with data from EMBARK.. The disease is universally fatal. They are currently developing gene therapies for a range of diseases, including sickle cell disease and inherited blindness. As part of the FDAs accelerated approval pathway, Roche and Sarepta have also initiated the EMBARK trial, a global, randomized, double-blinded and placebo-controlled study of SRP-9001 in DMD patients aged 4 to 7 years old. Autolus specializes in developing CAR-T cell therapies. Most boys stop walking and need a wheelchair between 9 and 14 years old.. WebGene therapy Cell therapy Drug therapy Mutation specific approaches About clinical research Current trials in DMD Current trials in SMA Current trials in LGMD Facing the Challenges of Clinical Trials Overview of therapeutic approaches for SMA The Problem The splicing process Therapeutic strategies for SMA Outcome measures On the other hand, high cost of gene therapies restrains the growth to some extent. The company develops its pipeline products using its multi-platform Precision Genetic Medicine Engine in gene therapy, RNA, and gene editing. Its experimental therapies are now in clinical trials for Gaucher disease type 1 and cystinosis. The companys allogeneic CAR-T program targets B-cell malignancies. SGT-001 is a systemically administered candidate that provides the body with a synthetic dystrophin gene called microdystrophin. EMDR (801) 436-5597. Subsequent gene therapy trials have moved to intravenous (IV) administration typically only requiring one fairly quick dose. Despite this progress, most DMD patients pass away in their 20s to 30s due to respiratory failure, infection, or cardiomyopathy (dilation of the heart due to overwork). It is currently being investigated in a Phase I/II study in six boys ages 4 and up. The In January, The FDA approved Regenxbios request to conduct a Phase I/II clinical trial in the United States to assess the safety and efficacy of RGX-202, its experimental gene therapy for Duchenne Muscular Dystrophy (DMD). Vizgen has developed Merscope, a high multiplexing, high-resolution in situ platform for single-cell and spatial genomics. Companies focusing on DMD gene therapies have proceeded cautiously after a fatal case of myocarditis was observed in Pfizers gene therapy candidate. DMD is a progressive muscle wasting disease caused by a genetic mutation. Focuses on allogeneic placental-derived cells. WebAbout 1 in 10 of all cancers is caused by a gene mutation that is passed through a family. of R&D, Strategy Formulation, SLL is Gilead Buys Out Rights to Cancer Therapy from Jounce for USD 67 Million Gilead Sciences must have liked what it saw in a two-year-old collaboration with Jounce Therapeutics for CCR8-targeting cancer immunotherapy because the company has just agreed to own the program fully. In May, Pfizer, Sarepta, Solid and Genethonjoined armsto investigate their mutual experience with serious safety concerns. The companys core focus areas include immuno-oncology and plant sciences. solutions for life science vertical and offering quintessential advisory services in the At the American Society of Gene and Cell Therapy Meeting, the companies theorized that the adverse events were most likely driven by the body's immune responses to the protein expressed by their gene therapeutic.
Sarepta has three products marketed for the treatment of DMD: Exondys 51 (eteplirsen), Vyondys 53 (golodirsen) and Amondys 45 (casimersen). Antibody status can be quite divisive in the DMD community.. Gene therapy is more efficient and covers everyone, regardless of genetic mutations, but its still good to have options while new therapies are in development.. The companys Cell Squeeze technology addresses barriers to cell therapy development and implementation. Sarepta is currently the leading gene therapy player in the DMD space. For example, Eteplirsen (Exondys 51) is expected to cost patients around US$ 300,000 for a treatment course and the cost of the treatment can go as high as US$ 750,000 annually. As a result, SRP-9001 would gain a competitive edge. Gene therapy; Cell According to DelveInsights Duchenne Muscular Dystrophy Market research report, the total market size in the 7MM is anticipated to reach approximately USD 8 billion by 2032. The DMD Gene Therapy Race Monday's BLA acceptance makes Roche and Sarepta the leaders of a tight race to bring a gene therapy for DMD over the regulatory NIH, U.S. National Library of Medicine, ClinicalTrials.gov. (2022, January 10). March 29, 2006. LGMD2E -sarcoglycan, LGMD2D -sarcoglycan. It is a recombinant adeno-associated virus serotype 9 (AAV9) capsid containing a shortened version of the human dystrophin gene (mini-dystrophin) controlled by a human muscle specific promotor. In genetic engineering methods have enabled the development of effective gene therapy player in the DMD space high,... Circulation and assists in movement from blood vessels to the muscle whole body moved to (... Development of effective gene therapy, RNA, and gene therapy are now in clinical trials for Gaucher type! A synthetic dystrophin gene is a Venture Partner at Medicxi cardiomyopathy and respiratory.... 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