Vesleteplirsen

- Initiating Registrational Cohorts with Update on Path to Registration by Year-End 2024 -- Virtual Investor Event Today at 8:00 a.m. ET - WALTHAM, Mass., Sept. 03, 2024 (GLOBE NEWSWIRE) -- Dyne Therapeutics, Inc. (Nasdaq: DYN), a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases, today announced new clinical data from its ongoing Phase 1/2 DELIVER trial of DYNE-251 in patients with Duchenne muscular dystrophy (DMD) who are amenable to exon 51 skipping demonstrating unprecedented dystrophin expression and functional improvement in multiple cohorts. “We believe these data reinforce the opportunity to transform the treatment paradigm for individuals living with Duchenne. In DELIVER, DYNE-251 achieved the highest level of dystrophin expression reported for an exon 51 skipping therapy and improvement in multiple functional endpoints across multiple cohorts that continued with time on therapy,” said Wildon Farwell, M.D., MPH, chief medical officer of Dyne. “Our goal has always been to drive dystrophin levels that lead to functional benefit for patients – these data suggest that the distribution across cardiac, diaphragm and other skeletal muscles observed preclinically with the FORCE platform is translating in the clinic. Importantly, treatment with DYNE-251 resulted in meaningful improvements in SV95C, a digital outcome measure approved as a primary endpoint for Duchenne clinical trials in Europe. With these exciting data, we are moving quickly to initiate registrational cohorts in DELIVER, and we continue to pursue expedited approval pathways and plan to provide an update on our path to registration by the end of this year.” This assessment of the DELIVER trial evaluating DYNE-251 includes 6-month biomarker and functional data from 8 male patients enrolled in the 20 mg/kg (approximate PMO dose) cohort who were randomized to receive DYNE-251 or placebo once every four weeks, and 12-month functional data from 6 participants in the 10 mg/kg cohort.1 DYNE-251 demonstrated dose dependent exon skipping and dystrophin expression and improvement in multiple functional endpoints in both cohorts. Key findings include: Dystrophin expression: DYNE-251 demonstrated unprecedented dystrophin expression as measured by Western blot. Patients treated with 20 mg/kg of DYNE-251 Q4W had a mean absolute dystrophin expression of 3.71% of normal (unadjusted for muscle content), more than 10-fold higher than the 0.3% reported in a clinical trial of the weekly standard of care, eteplirsen.2 When adjusting for muscle content, the DYNE-251 treated group reached 8.72% mean absolute dystrophin, which is greater than levels reported by peptide conjugate PMOs in clinical development.3Function: Meaningful improvements in multiple functional endpoints were observed in both the 20 mg/kg and 10 mg/kg DYNE-251 Q4W groups, including North Star Ambulatory Assessment (NSAA), Stride Velocity 95th Centile (SV95C), 10-Meter Walk/Run Time (10-MWR), Time to Rise from Floor. The 10 mg/kg cohort showed continued improvement in all reported measures from 6 months to 12 months.1 SV95C is a digital objective outcome measure of ambulatory performance in patients’ normal daily environment and is approved as a primary endpoint for Duchenne clinical trials in Europe. The change from baseline observed in both the 10 mg/kg and 20 mg/kg cohorts of DELIVER met the published minimal clinically important difference (MCID) as defined by the European Medicines Agency. Safety and Tolerability: Safety and tolerability data are based on 54 participants enrolled in the DELIVER trial. DYNE-251 demonstrated a favorable safety profile and the majority of treatment emergent adverse events were mild or moderate.4 No related serious treatment emergent adverse events have been identified other than in two participants at the 40 mg/kg dose level with events potentially related to study drug and both participants have recovered. Approximately 675 doses have been administered to date in the DELIVER trial, representing over 50 patient-years of follow-up. Key Milestones for DELIVER and ACHIEVE Trials Based on these data and regulatory interactions, Dyne is initiating registrational cohorts in the DELIVER trial and plans to provide an update on the path to registration by the end of 2024.Dyne is also executing its ongoing Phase 1/2 ACHIEVE clinical trial of DYNE-101 in myotonic dystrophy type 1. The safety profile of DYNE-101 continues to be favorable and includes safety data up to the 6.8 mg/kg Q8W cohort.5 The company continues to engage with global regulators, including the U.S. Food and Drug Administration, and plans to provide an update on the path to registration for DYNE-101, including additional clinical data, by the end of 2024. Virtual Investor Event Dyne will host a video webcast event to discuss these DELIVER data today, September 3, 2024, at 8:00 a.m. ET and a replay will be accessible for 90 days following the presentation. An accompanying slide presentation for the event and an updated corporate presentation will also be available. To access these presentations and register for the live webcast and replay, please visit the Investors & Media section of Dyne’s website at https://investors.dyne-tx.com/news-and-events/events-and-presentations and the live event may also be accessed here. About the DELIVER Trial DELIVER is a Phase 1/2 global clinical trial evaluating DYNE-251, consisting of a 24-week multiple ascending dose (MAD) randomized placebo-controlled period, a 24-week open-label extension and a 96-week long-term extension. The trial, which is designed to be registrational, is enrolling ambulant and non-ambulant males with Duchenne muscular dystrophy (DMD) who are ages 4 to 16 and have mutations amenable to exon 51 skipping. The primary endpoints are safety, tolerability and change from baseline in dystrophin levels as measured by Western blot. Secondary endpoints include measures of muscle function, exon skipping and pharmacokinetics. For more information on the DELIVER trial, visit https://www.clinicaltrials.gov/ (NCT05524883). About DYNE-251 DYNE-251 is an investigational therapeutic being evaluated in the Phase 1/2 global DELIVER clinical trial for people living with DMD who are amenable to exon 51 skipping. DYNE-251 consists of a phosphorodiamidate morpholino oligomer (PMO) conjugated to a fragment antibody (Fab) that binds to the transferrin receptor 1 (TfR1) which is highly expressed on muscle. It is designed to enable targeted muscle tissue delivery and promote exon skipping in the nucleus, allowing muscle cells to create a truncated, functional dystrophin protein, with the goal of stopping or reversing disease progression. DYNE-251 has been granted fast track, orphan drug and rare pediatric disease designations by the U.S. Food and Drug Administration for the treatment of DMD mutations amenable to exon 51 skipping. In addition to DYNE-251, Dyne is building a global DMD franchise and has preclinical programs targeting other exons, including 53, 45 and 44.  About Duchenne Muscular Dystrophy (DMD) DMD is a rare disease caused by mutations in the gene that encodes for dystrophin, a protein critical for the normal function of muscle cells. These mutations, the majority of which are deletions, result in the lack of dystrophin protein and progressive loss of muscle function. DMD occurs primarily in males and affects an estimated 12,000 to 15,000 individuals in the U.S. and 25,000 in Europe. Loss of strength and function typically first appears in pre-school age boys and worsens as they age. As the disease progresses, the severity of damage to skeletal and cardiac muscle often results in patients experiencing total loss of ambulation by their early teenage years and includes worsening cardiac and respiratory symptoms and loss of upper body function by the later teens. There is no cure for DMD and currently approved therapies provide limited benefit. About Dyne Therapeutics Dyne Therapeutics is a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases. With its proprietary FORCE™ platform, Dyne is developing modern oligonucleotide therapeutics that are designed to overcome limitations in delivery to muscle tissue. Dyne has a broad pipeline for serious muscle diseases, including clinical programs for myotonic dystrophy type 1 (DM1) and Duchenne muscular dystrophy (DMD) and a preclinical program for facioscapulohumeral muscular dystrophy (FSHD). For more information, please visit https://www.dyne-tx.com/, and follow us on X, LinkedIn and Facebook. Forward-Looking Statements This press release contains forward-looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this press release, including statements regarding Dyne’s strategy, future operations, prospects and plans, objectives of management, the potential of the FORCE platform, the anticipated timelines for reporting additional data from the ACHIEVE and DELIVER clinical trials and initiating registrational cohorts, expectations regarding the timing and outcome of interactions with global regulatory authorities and the availability of accelerated approval pathways for DYNE-101 and DYNE-251, and plans to provide future updates on pipeline programs, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “objective,” “ongoing,” “plan,” “predict,” “project,” “potential,” “should,” or “would,” or the negative of these terms, or other comparable terminology are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Dyne may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements as a result of various important factors, including: uncertainties inherent in the identification and development of product candidates, including the initiation and completion of preclinical studies and clinical trials; uncertainties as to the availability and timing of results from preclinical studies and clinical trials; the timing of and Dyne’s ability to enroll patients in clinical trials; whether results from preclinical studies and initial data from early clinical trials will be predictive of the final results of the clinical trials or future trials; uncertainties as to the FDA’s and other regulatory authorities’ interpretation of the data from Dyne's clinical trials and acceptance of Dyne's clinical programs and the regulatory approval process; whether Dyne’s cash resources will be sufficient to fund its foreseeable and unforeseeable operating expenses and capital expenditure requirements; as well as the risks and uncertainties identified in Dyne’s filings with the Securities and Exchange Commission (SEC), including the Company’s most recent Form 10-Q and in subsequent filings Dyne may make with the SEC. In addition, the forward-looking statements included in this press release represent Dyne’s views as of the date of this press release. Dyne anticipates that subsequent events and developments will cause its views to change. However, while Dyne may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Dyne’s views as of any date subsequent to the date of this press release. 1.During the OLE period, all participants in 10 mg/kg cohort were dose escalated to 20 mg/kg Q4W regimen.2.No head-to-head trials have been conducted comparing DYNE-251 to eteplirsen. Eteplirsen data may not be directly comparable due to differences in trial protocols, dosing regimens and patient populations. Accordingly, these cross-trial comparisons may not be reliable. Eteplirsen data from J Neuromuscul Dis. 2021; 8(6): 989–1001.3.No head-to-head trials have been conducted comparing DYNE-251 to SRP-5051. SRP-5051 data may not be directly comparable due to differences in trial protocols, dosing regimens, methodologies for calculating muscle content adjusted dystrophin and patient populations. Accordingly, these cross-trial comparisons may not be reliable. SRP-5051 data from Clinical Update: MOMENTUM (Study SRP-5051-201, Part B) Jan. 29, 2024.4.DYNE-251 safety data as of August 21, 2024.5.DYNE-101 safety data as of August 20, 2024. Contacts: InvestorsAmy Reillyareilly@dyne-tx.com 857-341-1203 MediaStacy Nartkersnartker@dyne-tx.com781-317-1938

Pfizer's mini-dystrophin gene therapy fordadistrogene movaparvovec failure in the Duchenne muscular dystrophy treatment opens new opportunities for several pharmaceutical companies such as Sarepta Therapeutics (SRP-5051), Santhera Pharmaceuticals/ReveraGen BioPharma (Vamorolone), Taiho Pharmaceutical (TAS-205), FibroGen (Pamrevlumab), and others, to advance their therapies and potentially dominate the DMD market. LAS VEGAS, June 17, 2024 /PRNewswire/ -- Duchenne muscular dystrophy is the most prevalent type of muscular dystrophy found in children. This genetic condition leads to ongoing muscle weakening and degeneration. It is one among nine different forms of muscular dystrophy. According to DelveInsight's estimates, the US accounted for around ~17K total prevalent cases of Duchenne muscular dystrophy in 2023. The highest cases were found in the children of the 5-9 age group, these numbers are expected to grow by the year 2034. As per DelveInsight's analysis, the most commonly associated comorbidities accompanied with DMD included the highest cases of scoliosis accounting for around ~20% of cases followed by ADHD, cardiomyopathy, and obsessive-compulsive disorders accounting for around ~19%, ~18%, and ~15% cases respectively in the US in the year 2023. The standard of care for DMD typically involves a combination of corticosteroids and surgical interventions. Prednisone and deflazacort are commonly prescribed glucocorticoids that have been utilized for over two decades to increase muscular strength in DMD patients. Surgery may be necessary to address contractures, spinal curvature, or scoliosis, which can affect breathing and overall mobility. Additionally, interventions such as pacemakers or other cardiac devices may be utilized to improve heart function. Sarepta Therapeutics is a key player in the DMD market, boasting three approved assets and two in the current pipeline. Despite its dominance, emerging competition is evident. The historical success rate for market entry varies across the 7MM. Notably, the DMD market exhibits geographic disparities in regulatory approvals, with instances of products approved in one jurisdiction and rejected in another, despite identical clinical data, reflecting the distinct standards of regulatory bodies such as EMA and FDA. Learn more about the FDA-approved DMD drugs @ Drugs for Duchenne Muscular Dystrophy Treatment The current US DMD treatment market possesses approved products, EMFLAZA (deflazacort), VYONDYS 53 (golodirsen), EXONDYS 51 (eteplirsen), AMONDYS 45 (casimersen), and VILTEPSO (viltolarsen), ELEVIDYS (delandistrogene moxeparvovec) in patients with DMD. In January 2024, Santhera Pharmaceuticals announced the introduction of its AGAMREE (vamorolone) to treat DMD patients aged four years and above in Germany. Santhera Pharmaceuticals has officially entered the commercial stage of its biopharma journey with the launch of this drug in Germany. ELEVIDYS, the first FDA-approved gene therapy for DMD, received accelerated approval in June 2023. However, ICER recently challenged the potential conversion of Sarepta's gene therapy to full approval, citing concerns about the surrogate endpoint used in the approval process. In the EU4 and the UK, the current market is dominated by steroid therapies along with an approved medication targeting DMD patients with the nonsense mutation, TRANSLARNA (ataluren). In Japan, the only approved treatment is VILTEPSO (viltolarsen). ELEVIDYS is a prescription gene therapy designed for ambulatory children aged 4 to 5 years with DMD and a confirmed dystrophin gene mutation. It received accelerated approval. Patients will take oral corticosteroids before and after receiving ELEVIDYS and will have weekly blood tests to monitor liver enzyme levels for three months post-treatment. In June 2023, the USFDA approved ELEVIDYS as the first gene therapy for treating pediatric patients aged 4-5 years with Duchenne Muscular Dystrophy and a confirmed DMD gene mutation. VYONDYS 53, developed by Sarepta Therapeutics, is prescribed for treating DMD in patients with a specific mutation of the DMD gene that can be addressed by exon 53 skipping. This approval is under the accelerated approval pathway, based on the observed increase in dystrophin production in the skeletal muscle of patients treated with VYONDYS 53. The FDA approved VYONDYS 53 (golodirsen) in December 2019. Additionally, the FDA granted VYONDYS 53 (golodirsen) New Chemical Entity (NCE) exclusivity until December 2024 and Orphan Drug Exclusivity until December 2026. To know more about DMD treatment options, visit @ New Treatment for Duchenne Muscular Dystrophy The DMD market is crowded with so many companies including FibroGen, Santhera Pharmaceutical, Italfarmaco, ReveraGen BioPharma, Cumberland Pharmaceuticals, Sarepta Therapeutics, Antisense Therapeutics, Capricor Therapeutics, and others are running clinical trials to improve the treatment space. The DMD pipeline possesses potential drugs in mid-stage developments to be launched shortly. Some of the promising drugs in the pipeline include Pizuglanstat (TAS-205), SRP-5051, Allogeneic Cardiosphere-derived Cells (CAP-1002), ITF2357 (Givinostat), and others that hold the potential to create a significant positive shift in the DMD market size. Discover which therapies are expected to grab major DMD market share @ Duchenne Muscular Dystrophy Market Report Italfarmaco is developing Givinostat (ITF2357), an oral small molecule that functions as a histone deacetylase inhibitor with potential anti-inflammatory, anti-angiogenic, and antineoplastic properties. ITF2357 increases the production of follistatin protein in muscle cells by inhibiting the HDAC enzyme, leading to increased muscle mass and prevention of muscle degeneration. This action counters the effects of myostatin, helping to alleviate the symptoms of DMD. Givinostat is currently in Phase III trials. The FDA has granted it Orphan Drug, Rare Pediatric Disease, and Fast Track designations for DMD treatment. Additionally, the European Commission has designated Givinostat as an Orphan Medicinal Product for DMD treatment. TAS-205 (pizuglanstat) is a selective inhibitor of hematopoietic prostaglandin D synthase (HPGDS), developed by Taiho Pharmaceutical. It is being advanced as a treatment for Duchenne muscular dystrophy (DMD), effective irrespective of the type of dystrophin gene mutation. By inhibiting HPGDS, which worsens the inflammatory response in the muscles of DMD patients, it helps control the decline in motor function. Currently, it is in Phase III of clinical trials. Discover more about drugs for DMD in development @ Duchenne Muscular Dystrophy Clinical Trials The anticipated launch of these emerging therapies for Duchenne muscular dystrophy are poised to transform the market landscape in the coming years. As these cutting-edge therapies continue to mature and gain regulatory approval, they are expected to reshape the Duchenne muscular dystrophy market landscape, offering new standards of care and unlocking opportunities for medical innovation and economic growth. DelveInsight estimates that the market size for DMD is expected to grow from USD 2.1 billion in 2023 with a significant CAGR by 2034. The growth of the DMD market is expected to be mainly driven by increased diagnosed incidence, patient awareness, and a robust clinical pipeline during the forecast period (2024–2034). DelveInsight's latest published market report titled as Duchenne Muscular Dystrophy Market Insight, Epidemiology, and Market Forecast – 2034 will help you to discover which market leader is going to capture the largest market share. The report provides comprehensive insights into the DMD country-specific treatment guidelines, patient pool analysis, and epidemiology forecast to help understand the key opportunities and assess the market's underlying potential. The DMD market report proffers epidemiological analysis for the study period 2020–2034 in the 7MM segmented into: Total Prevalent Cases of Duchenne Muscular Dystrophy Age-specific Cases of Duchenne Muscular Dystrophy Ambulatory and Non-ambulatory Cases of Duchenne Muscular Dystrophy Mutation-specific Cases of Duchenne Muscular Dystrophy Associated Comorbidities in Duchenne Muscular Dystrophy The report provides an edge while developing business strategies by understanding trends shaping and driving the 7MM DMD market. Highlights include: 11-year Forecast 7MM Analysis Epidemiology-based Market Forecasting Historical and Forecasted Market Analysis upto 2034 Emerging Drug Market Uptake Peak Sales Analysis Key Cross Competition Analysis Industry Expert's Opinion Access and Reimbursement Download this DMD market report to assess the epidemiology forecasts, understand the patient journeys, know KOLs' opinions about the upcoming treatment paradigms, and determine the factors contributing to the shift in the DMD market. Also, stay abreast of the mitigating factors to improve your market position in the DMD therapeutic space. Related Reports Duchenne Muscular Dystrophy Epidemiology Forecast Duchenne Muscular Dystrophy Epidemiology Forecast – 2032 report delivers an in-depth understanding of the disease, historical and forecasted Duchenne muscular dystrophy epidemiology in the 7MM, i.e., the United States, EU5 (Germany, Spain, Italy, France, and the United Kingdom), and Japan. Duchenne Muscular Dystrophy Pipeline Duchenne Muscular Dystrophy Pipeline Insight – 2024 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key Duchenne muscular dystrophy companies, including Santhera Pharmaceuticals, Sarepta Therapeutics, Italfarmaco, Wave Life Sciences Ltd, FibroGen, Edgewise Therapeutics, Pfizer, Daiichi Sankyo, Sarepta Therapeutics, Inc., ENCell, Taiho Pharmaceutical, Solid Biosciences, Capricor, Nippon Shinyaku, Hansa Biopharma, Ultragenyx Pharmaceutical, Dyne Therapeutics, Entrada Therapeutics, AAVogen, PepGen, Antisense Therapeutics, BioMarin Pharmaceutical, Avidity Biosciences, Sarepta Therapeutics, Dyne Therapeutics, Solid Biosciences Inc, Regenxbio, Stealth BioTherapeutics, among others. Nonsense Mutation Duchenne Muscular Dystrophy Pipeline Nonsense Mutation Duchenne Muscular Dystrophy Pipeline Insight – 2024 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key nonsense mutation Duchenne muscular dystrophy companies, including Taiho Pharmaceutical, Solid Biosciences, Capricor, Nippon Shinyaku, among others. Becker Muscular Dystrophy Pipeline Becker Muscular Dystrophy Pipeline Insight – 2024 report provides comprehensive insights about the pipeline landscape, pipeline drug profiles, including clinical and non-clinical stage products, and the key becker muscular dystrophy companies, including Epirium Bio, Ultragenyx, Strykagen, among others. About DelveInsight DelveInsight is a leading Business Consultant and Market Research firm focused exclusively on life sciences. It supports pharma companies by providing comprehensive end-to-end solutions to improve their performance. Get hassle-free access to all the healthcare and pharma market research reports through our subscription-based platform PharmDelve . Contact Us Shruti Thakur [email protected] +14699457679 Logo: SOURCE DelveInsight Business Research, LLP