Latest news with #LouiseRodino-Klapac
Business Wire
3 days ago
- Business
- Business Wire
Sarepta Therapeutics Acknowledges CHMP Negative Opinion for ELEVIDYS in the European Union
CAMBRIDGE, Mass.--(BUSINESS WIRE)--Sarepta Therapeutics, Inc. (NASDAQ:SRPT), the leader in precision genetic medicine for rare diseases, acknowledges that the Committee for Medicinal Products for Human Use (CHMP) issued a negative opinion on the conditional marketing authorization (CMA) for ELEVIDYS (delandistrogene moxeparvovec) in ambulatory individuals ages three to seven years for the treatment of Duchenne muscular dystrophy (DMD). 'While we are disappointed by the CHMP's negative opinion, we understand the urgent need for continued dialogue and collaboration to bring transformative therapies to people with Duchenne who live with a relentless disease that steals their mobility, independence and ultimately life – often by early adulthood," said Louise Rodino-Klapac, Ph.D., president of research & development and technical operations, Sarepta. 'Following the initial FDA approval of ELEVIDYS on June 22, 2023, the therapy has subsequently received regulatory approval in several other countries. In the U.S., we are actively working with the FDA to address recent safety questions. We remain committed to working with regulators to address outstanding questions on safety so that people living with Duchenne have access to this important therapy.' ELEVIDYS is the first and only approved gene therapy targeting the underlying cause of disease that has consistently demonstrated stabilization or slowing of DMD disease progression, with durable effects on functional and biological outcomes and muscle health. While the primary endpoint was not met in EMBARK after one year, ELEVIDYS showed clinically meaningful and statistically significant improvements across important secondary endpoints of functional outcome measures when compared to placebo. Longer term efficacy data were also submitted to EMA, including two-year results from the EMBARK study and three-year pooled efficacy analysis from three other ELEVIDYS studies that showed clinically meaningful improvements across key measures of motor function. One-year data from part one of the EMBARK study were published in Nature Medicine in October 2024, and results from year two were shared at this year's Muscular Dystrophy Association Clinical & Scientific Conference in Dallas. Quantitative muscle MR (magnetic resonance) outcomes from part 1 of EMBARK were published in JAMA Neurology in May 2025. Sarepta is responsible for regulatory approval and commercialization of ELEVIDYS in the U.S., as well as manufacturing. Roche is responsible for regulatory approvals and bringing ELEVIDYS to patients across the rest of the world. Regulatory approval and commercialization of ELEVIDYS in Japan is through Chugai Pharmaceuticals via its alliance with Roche. About ELEVIDYS (delandistrogene moxeparvovec-rokl) ELEVIDYS (delandistrogene moxeparvovec-rokl) is a single-dose, adeno-associated virus (AAV)-based gene transfer therapy for intravenous infusion designed to address the underlying genetic cause of Duchenne muscular dystrophy – mutations or changes in the DMD gene that result in the lack of dystrophin protein – through the delivery of a transgene that codes for the targeted production of ELEVIDYS micro-dystrophin in skeletal muscle. ELEVIDYS is indicated in U.S. for the treatment of Duchenne muscular dystrophy (DMD) in individuals at least 4 years of age. For patients who are ambulatory and have a confirmed mutation in the DMD gene For patients who are non-ambulatory and have a confirmed mutation in the DMD gene. The DMD indication in non-ambulatory patients is approved under accelerated approval in the U.S. based on expression of ELEVIDYS micro-dystrophin (noted hereafter as 'micro-dystrophin') in skeletal muscle. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). U.S. IMPORTANT SAFETY INFORMATION CONTRAINDICATION: ELEVIDYS is contraindicated in patients with any deletion in exon 8 and/or exon 9 in the DMD gene. WARNINGS AND PRECAUTIONS: Infusion-related Reactions: Infusion-related reactions, including hypersensitivity reactions and anaphylaxis, have occurred during or up to several hours following ELEVIDYS administration. Closely monitor patients during administration and for at least 3 hours after the end of infusion. If symptoms of infusion-related reactions occur, slow, or stop the infusion and give appropriate treatment. Once symptoms resolve, the infusion may be restarted at a lower rate. ELEVIDYS should be administered in a setting where treatment for infusion-related reactions is immediately available. Discontinue infusion for anaphylaxis. Acute Serious Liver Injury: Acute serious liver injury has been observed with ELEVIDYS, and administration may result in elevations of liver enzymes (such as GGT, GLDH, ALT, AST) or total bilirubin, typically seen within 8 weeks. Patients with preexisting liver impairment, chronic hepatic condition, or acute liver disease (e.g., acute hepatic viral infection) may be at higher risk of acute serious liver injury. Postpone ELEVIDYS administration in patients with acute liver disease until resolved or controlled. Prior to ELEVIDYS administration, perform liver enzyme test and monitor liver function (clinical exam, GGT, and total bilirubin) weekly for the first 3 months following ELEVIDYS infusion. Continue monitoring if clinically indicated, until results are unremarkable (normal clinical exam, GGT, and total bilirubin levels return to near baseline levels). Systemic corticosteroid treatment is recommended for patients before and after ELEVIDYS infusion. Adjust corticosteroid regimen when indicated. If acute serious liver injury is suspected, consultation with a specialist is recommended. Immune-mediated Myositis: In clinical trials, immune-mediated myositis has been observed approximately 1 month following ELEVIDYS infusion in patients with deletion mutations involving exon 8 and/or exon 9 in the DMD gene. Symptoms of severe muscle weakness, including dysphagia, dyspnea, and hypophonia, were observed. Limited data are available for ELEVIDYS treatment in patients with mutations in the DMD gene in exons 1 to 17 and/or exons 59 to 71. Patients with deletions in these regions may be at risk for a severe immune-mediated myositis reaction. Advise patients to contact a physician immediately if they experience any unexplained increased muscle pain, tenderness, or weakness, including dysphagia, dyspnea, or hypophonia, as these may be symptoms of myositis. Consider additional immunomodulatory treatment (immunosuppressants [e.g., calcineurin-inhibitor] in addition to corticosteroids) based on patient's clinical presentation and medical history if these symptoms occur. Myocarditis: Acute serious myocarditis and troponin-I elevations have been observed following ELEVIDYS infusion in clinical trials. If a patient experiences myocarditis, those with pre-existing left ventricle ejection fraction (LVEF) impairment may be at higher risk of adverse outcomes. Monitor troponin-I before ELEVIDYS infusion and weekly for the first month following infusion and continue monitoring if clinically indicated. More frequent monitoring may be warranted in the presence of cardiac symptoms, such as chest pain or shortness of breath. Advise patients to contact a physician immediately if they experience cardiac symptoms. Preexisting Immunity against AAVrh74: In AAV-vector based gene therapies, preexisting anti-AAV antibodies may impede transgene expression at desired therapeutic levels. Following treatment with ELEVIDYS, all patients developed anti-AAVrh74 antibodies. Perform baseline testing for presence of anti-AAVrh74 total binding antibodies prior to ELEVIDYS administration. ELEVIDYS administration is not recommended in patients with elevated anti-AAVrh74 total binding antibody titers greater than or equal to 1:400. Adverse Reactions: The most common adverse reactions (incidence ≥5%) reported in clinical studies were vomiting, nausea, liver injury, pyrexia, and thrombocytopenia. Report negative side effects of prescription drugs to the FDA. Visit or call 1-800-FDA-1088. You may also report side effects to Sarepta Therapeutics at 1-888-SAREPTA (1-888-727-3782). For further information, please see the full Prescribing Information. About Sarepta Therapeutics Sarepta is on an urgent mission: engineer precision genetic medicine for rare diseases that devastate lives and cut futures short. We hold leadership positions in Duchenne muscular dystrophy (Duchenne) and limb-girdle muscular dystrophies (LGMDs) and are building a robust portfolio of programs across muscle, central nervous system, and cardiac diseases. For more information, please visit or follow us on LinkedIn, X, Instagram and Facebook. Internet Posting of Information We routinely post information that may be important to investors in the 'For Investors' section of our website at We encourage investors and potential investors to consult our website regularly for important information about us. Forward-Looking Statements This statement contains 'forward-looking statements.' Any statements that are not statements of historical fact may be deemed to be forward-looking statements. Words such as 'will,' 'may,' 'potential' and similar expressions are intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements relating to our future operations, research and development programs, discussions with regulators and the prospects for approvals or continued approvals, as applicable, of ELEVIDYS and the potential benefits and risks of ELEVIDYS. Actual results could materially differ from those stated or implied by these forward-looking statements as a result of such risks and uncertainties. Known risk factors include the following: different methodologies, assumptions and applications we use to assess particular safety or efficacy parameters may yield different statistical results; our products or product candidates may be perceived as insufficiently effective, unsafe or may result in unforeseen adverse events; our products or product candidates may cause undesirable side effects that result in significant negative consequences; the possible impact of regulatory decisions by, and any halts imposed by, regulatory agencies on our business; and those risks identified under the heading 'Risk Factors' in our most recent Annual Report on Form 10-K for the year ended December 31, 2024 filed with the Securities and Exchange Commission (SEC) as well as other SEC filings made by the Company, which you are encouraged to review. Any of the foregoing risks could materially and adversely affect the Company's business, results of operations and the trading price of Sarepta's common stock. For a detailed description of risks and uncertainties Sarepta faces, you are encouraged to review the SEC filings made by Sarepta. We caution investors not to place considerable reliance on the forward-looking statements contained herein. Sarepta does not undertake any obligation to publicly update its forward-looking statements based on events or circumstances after the date hereof, except as required by law. Source: Sarepta Therapeutics, Inc.
Boston Globe
16-06-2025
- Health
- Boston Globe
Sarepta reports second patient death after treatment with Duchenne gene therapy
Advertisement The company said early Sunday it was working with experts to come up with an enhanced immunosuppressive regimen that could make the therapy, called Elevidys, safer for non-ambulatory patients. It said it would talk with the Food and Drug Administration about the the proposed regimen. Sarepta also said it was pausing dosing in an ongoing clinical trial of Elevidys, called ENVISION, that's focused on older ambulatory and non-ambulatory patients. The company did not disclose the age of the person who died, but a statement indicated it was a male patient. Duchenne almost always affects boys, More than 900 patients have received Elevidys overall. 'We are deeply saddened by the loss of a second patient and extend our heartfelt condolences to the patient's family and his care team during this incredibly difficult time,' Louise Rodino-Klapac, Sarepta's chief scientific officer, said in a statement. Advertisement 'We know how much hope families place in new treatment options like Elevidys — and we are committed to honoring that hope by acting swiftly, guided by scientific rigor and the insights of leading experts, to strengthen safety for all future patients,' she added. The death is certain to add additional scrutiny to Elevidys has become a key medicine caught up in the debate about regulatory flexibility — with patients and some government officials advocating for speeding treatments to patients with rare diseases who have few options — and effectiveness standards that drugs have traditionally had to clear to win approval. At the FDA, a top official, Peter Marks In the case of Elevidys, the dispute centered on efficacy, with the treatment appearing safe in clinical trials. However, Sarepta studied the therapy largely in young children, and the risks of gene therapy generally increase with age. When the FDA granted its approval, some experts raised concerns about the treatment's safety in older patients. FDA reviewers noted last year that Sarepta submitted data for only 16 patients over the age of 8 and only eight patients who were non-ambulatory. They highlighted that there were no significant safety differences in those older, non-ambulatory patients, but that 'the limited safety data limits meaningful assessment.' Advertisement The FDA's new leadership under the Trump administration
Yahoo
05-06-2025
- Business
- Yahoo
The FDA granted Sarepta's rAAVrh74 Viral Vector a Platform Technology Designation
The FDA has designated the viral vector rAAVrh74, which Sarepta Therapeutics, Inc. (NASDAQ:SRPT) uses in its gene therapy candidate SRP-9003 for limb-girdle muscular dystrophy type 2E/R4 (LGMD2E/R4), as a platform technology. A laboratory technician in a white coat holding a microscope and examining a vial of biopharmaceuticals. Future approvals of treatments utilizing the same delivery technology might be accelerated by this designation. Phase III EMERGENE studies for SRP-9003, sometimes referred to as bidridistrogene xeboparvovec, are anticipated to yield data in the middle of 2025, and the FDA may file a proposal later this year. Sarepta Therapeutics, Inc. (NASDAQ:SRPT) uses the viral vector rAAVrh74, which is produced from rhesus monkeys, in a number of neuromuscular gene therapy initiatives. Only 14% of DMD patients had pre-existing antibodies, which suggests that the vector has low frequencies of these antibodies, which could improve efficacy and lower safety hazards. The FDA has acknowledged the vector's constancy and adaptability, according to Sarepta Therapeutics, Inc. (NASDAQ:SRPT)'s CSO, Louise Rodino-Klapac. The firm can now expedite development throughout its gene therapy pipeline by reusing clinical data, which will cut the timeframe for future therapies of neuromuscular diseases. While we acknowledge the potential of SRPT as an investment, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and have limited downside risk. If you are looking for an extremely cheap AI stock that is also a major beneficiary of Trump tariffs and onshoring, see our free report on the best short-term AI stock. READ NEXT: 10 High-Growth EV Stocks to Invest In and 13 Best Car Stocks to Buy in 2025. Disclosure. None.
Business Wire
04-06-2025
- Business
- Business Wire
U.S. FDA Grants Platform Technology Designation to the Viral Vector Used in SRP-9003, Sarepta's Investigational Gene Therapy for the Treatment of Limb Girdle Muscular Dystrophy Type 2E/R4
CAMBRIDGE, Mass.--(BUSINESS WIRE)--Sarepta Therapeutics, Inc. (NASDAQ:SRPT), the leader in precision genetic medicine for rare diseases, today announced that the rAAVrh74 viral vector used in the investigational gene therapy SRP-9003 (bidridistrogene xeboparvovec) for the treatment of limb-girdle muscular dystrophy type 2E/R4, has been granted platform technology designation by the U.S. Food & Drug Administration. 'This is one of the first programs to receive platform technology designation and an important recognition by FDA of the reproducibility and adaptability of this technology across multiple therapeutic programs,' said Louise Rodino-Klapac, Ph.D., chief scientific officer and head of research & development, Sarepta. 'The designation underscores and reinforces the consistency of the data we have seen with this AAVrh74 in multiple clinical programs and is yet another example of Sarepta's continued commitment to accelerating the development of potentially transformative treatments for patients with rare genetic diseases like LGMD type 2E/R4.' In keeping with FDA's pursuit of science-driven efficiency, the platform technology designation program is a critical tool that will help support rare disease therapies by streamlining drug development, manufacturing, and review processes for drug product applications by incorporating data from designated technologies. To be eligible for this designation, the technology must be a well-understood and reproducible technology – such as a nucleic acid sequence, molecular structure, mechanism of action, delivery method, vector, or a combination of any such technologies – and can support the development of multiple drugs or biologics. A platform is also eligible for consideration if it is incorporated in an approved drug and preliminary evidence demonstrates that the technology has the potential to be incorporated in or utilized by more than one drug without an adverse effect on quality, manufacturing, or safety, including using the same manufacturing process. Once granted, the designation enables sponsors to leverage prior data from the platform to support investigational new drug applications (INDs), new drug applications (NDAs) or biologic license applications (BLAs). About SRP-9003 (bidridistrogene xeboparvovec) SRP-9003 (bidridistrogene xeboparvovec) is an investigational gene therapy designed to be systemically and robustly delivered to skeletal, diaphragm and cardiac muscle, making it an ideal candidate to treat neuromuscular diseases. SRP-9003 is intended to deliver a full-length beta-sarcoglycan transgene and uses the MHCK7 promoter, chosen for its ability to robustly express in the heart which is critically important for patients with limb-girdle muscular dystrophy Type 2E (LGMD2E), also known as beta-sarcoglycanopathy and LGMDR4, many of whom die from pulmonary or cardiac complications. About Sarepta Therapeutics Sarepta is on an urgent mission: engineer precision genetic medicine for rare diseases that devastate lives and cut futures short. We hold leadership positions in Duchenne muscular dystrophy (Duchenne) and limb-girdle muscular dystrophies (LGMDs) and are building a robust portfolio of programs across muscle, central nervous system, and cardiac diseases. For more information, please visit or follow us on LinkedIn, X, Instagram and Facebook. Internet Posting of Information We routinely post information that may be important to investors in the 'For Investors' section of our website at We encourage investors and potential investors to consult our website regularly for important information about us. Forward-Looking Statements This statement contains 'forward-looking statements.' Any statements that are not statements of historical fact may be deemed to be forward-looking statements. Words such as 'believe,' 'anticipate,' 'plan,' 'expect,' 'will,' 'may,' 'intend,' 'prepare,' 'look,' 'potential,' 'possible' and similar expressions are intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements relating to our future operations, research and development programs, product candidates, the potential benefits of AAVrh74 and the potential for our therapies to be transformative for patients living with rare diseases. Actual results could materially differ from those stated or implied by these forward-looking statements as a result of such risks and uncertainties. Known risk factors include the following: different methodologies, assumptions and applications we use to assess particular safety or efficacy parameters may yield different statistical results; success in clinical trials, especially if based on a small patient sample, does not ensure that later clinical trials will be successful, and the results of future research may not be consistent with past positive results or with advisory committee recommendations, or may fail to meet regulatory approval requirements for the safety and efficacy of product candidates; we may not be able to comply with all FDA requests in a timely manner or at all; our products or product candidates may be perceived as insufficiently effective, unsafe or may result in unforeseen adverse events; our products or product candidates may cause undesirable side effects that result in significant negative consequences following any marketing approval; the possible impact of regulatory decisions by, and any halts imposed by, regulatory agencies on our business; and those risks identified under the heading 'Risk Factors' in our most recent Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) as well as other SEC filings made by the Company, which you are encouraged to review. Any of the foregoing risks could materially and adversely affect the Company's business, results of operations and the trading price of Sarepta's common stock. For a detailed description of risks and uncertainties Sarepta faces, you are encouraged to review the SEC filings made by Sarepta. We caution investors not to place considerable reliance on the forward-looking statements contained herein. Sarepta does not undertake any obligation to publicly update its forward-looking statements based on events or circumstances after the date hereof, except as required by law.
Yahoo
16-05-2025
- Business
- Yahoo
Sarepta Therapeutics Shares New Protein Expression and Safety Results from ENDEAVOR in Participants 2 Years Old at Time of Treatment
- Treatment with ELEVIDYS for Duchenne muscular dystrophy resulted in mean protein expression of 93.87% as measured by western blot in study participants (n=6) - Safety profile consistent with prior studies of ELEVIDYS and real-world experience CAMBRIDGE, Mass., May 16, 2025--(BUSINESS WIRE)--Sarepta Therapeutics, Inc. (NASDAQ:SRPT), the leader in precision genetic medicine for rare diseases, today reported new results from Study 9001-103. Also known as ENDEAVOR, Study 9001-103 is a multi-cohort study of ELEVIDYS (delandistrogene moxeparvovec-rokl) for the treatment of Duchenne muscular dystrophy. Treatment with ELEVIDYS in the ENDEAVOR participants in cohort 6 who were 2 years old at the time of treatment (n=6), demonstrated mean expression of 93.87% of normal, as measured by western blot, and 79.9 percent dystrophin positive fibers (PDPF), as measured by immunofluorescence. The results were seen in biopsies taken 12 weeks after treatment. Safety in cohort 6 was consistent with clinical and real-world experience with ELEVIDYS. The most common adverse events were nausea and vomiting. Elevated liver enzymes were seen in two patients and resolved with steroid administration. "The strength of the biomarker results that we are seeing in younger patients is extremely encouraging and we have a meeting with U.S. FDA next month to discuss expanding the ELEVIDYS label to include younger patients," said Louise Rodino-Klapac, Ph.D., chief scientific officer and head of research and development, Sarepta Therapeutics. "In addition to positive expression results, the safety profile in these patients is consistent with what we've seen in prior studies and in patients who have been prescribed treatment." Sarepta had previously shared expression and safety from Cohort 4 of ENDEAVOR, in which participants were 3 years old at the time of treatment. In biopsies taken 12 weeks after treatment with ELEVIDYS, participants in Cohort 4 (n=7) demonstrated mean protein levels of 99.64 percent, as measured by western blot. More than 25 patients under the age of 4 have now been treated in our clinical studies. About ENDEAVOR (Study 9001-103)Study SRP-9001-103, also known as ENDEAVOR, is an open-label, Phase 1b study assessing the expression and safety of ELEVIDYS (delandistrogene moxeparvovec) in multiple cohorts of male patients with Duchenne. The study has enrolled 55 participants across 7 cohorts, and has dosed participants aged 4-7 at time of treatment, older ambulant and non-ambulant individuals, and individuals younger than age 4. The primary endpoint in ENDEAVOR is the change from baseline in the quantity of ELEVIDYS micro-dystrophin protein expression measured by western blot at 12 weeks. Secondary outcome measures include change from baseline in micro-dystrophin expression measured by percent dystrophin positive fibers at 12 weeks. Exploratory endpoints include the change in vector genome copies per nucleus, NSAA and certain timed functional tests. Including the initial 12-week period, patients are followed for a total of five years. About ELEVIDYS (delandistrogene moxeparvovec-rokl)ELEVIDYS (delandistrogene moxeparvovec-rokl) is a single-dose, adeno-associated virus (AAV)-based gene transfer therapy for intravenous infusion designed to address the underlying genetic cause of Duchenne muscular dystrophy – mutations or changes in the DMD gene that result in the lack of dystrophin protein – through the delivery of a transgene that codes for the targeted production of ELEVIDYS micro-dystrophin in skeletal muscle. ELEVIDYS is indicated for the treatment of Duchenne muscular dystrophy (DMD) in individuals at least 4 years of age. For patients who are ambulatory and have a confirmed mutation in the DMD gene For patients who are non-ambulatory and have a confirmed mutation in the DMD gene. The DMD indication in non-ambulatory patients is approved under accelerated approval based on expression of ELEVIDYS micro-dystrophin in skeletal muscle. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). IMPORTANT SAFETY INFORMATION CONTRAINDICATION: ELEVIDYS is contraindicated in patients with any deletion in exon 8 and/or exon 9 in the DMD gene. WARNINGS AND PRECAUTIONS:Infusion-related Reactions: Infusion-related reactions, including hypersensitivity reactions and anaphylaxis, have occurred during or up to several hours following ELEVIDYS administration. Closely monitor patients during administration and for at least 3 hours after the end of infusion. If symptoms of infusion-related reactions occur, slow, or stop the infusion and give appropriate treatment. Once symptoms resolve, the infusion may be restarted at a lower rate. ELEVIDYS should be administered in a setting where treatment for infusion-related reactions is immediately available. Discontinue infusion for anaphylaxis. Acute Serious Liver Injury: Acute serious liver injury has been observed with ELEVIDYS, and administration may result in elevations of liver enzymes (such as GGT, GLDH, ALT, AST) or total bilirubin, typically seen within 8 weeks. Patients with preexisting liver impairment, chronic hepatic condition, or acute liver disease (e.g., acute hepatic viral infection) may be at higher risk of acute serious liver injury. Postpone ELEVIDYS administration in patients with acute liver disease until resolved or controlled. Prior to ELEVIDYS administration, perform liver enzyme test and monitor liver function (clinical exam, GGT, and total bilirubin) weekly for the first 3 months following ELEVIDYS infusion. Continue monitoring if clinically indicated, until results are unremarkable (normal clinical exam, GGT, and total bilirubin levels return to near baseline levels). Systemic corticosteroid treatment is recommended for patients before and after ELEVIDYS infusion. Adjust corticosteroid regimen when indicated. If acute serious liver injury is suspected, consultation with a specialist is recommended. Immune-mediated Myositis: In clinical trials, immune-mediated myositis has been observed approximately 1 month following ELEVIDYS infusion in patients with deletion mutations involving exon 8 and/or exon 9 in the DMD gene. Symptoms of severe muscle weakness, including dysphagia, dyspnea, and hypophonia, were observed. Limited data are available for ELEVIDYS treatment in patients with mutations in the DMD gene in exons 1 to 17 and/or exons 59 to 71. Patients with deletions in these regions may be at risk for a severe immune-mediated myositis reaction. Advise patients to contact a physician immediately if they experience any unexplained increased muscle pain, tenderness, or weakness, including dysphagia, dyspnea, or hypophonia, as these may be symptoms of myositis. Consider additional immunomodulatory treatment (immunosuppressants [e.g., calcineurin-inhibitor] in addition to corticosteroids) based on patient's clinical presentation and medical history if these symptoms occur. Myocarditis: Acute serious myocarditis and troponin-I elevations have been observed following ELEVIDYS infusion in clinical trials. If a patient experiences myocarditis, those with pre-existing left ventricle ejection fraction (LVEF) impairment may be at higher risk of adverse outcomes. Monitor troponin-I before ELEVIDYS infusion and weekly for the first month following infusion and continue monitoring if clinically indicated. More frequent monitoring may be warranted in the presence of cardiac symptoms, such as chest pain or shortness of breath. Advise patients to contact a physician immediately if they experience cardiac symptoms. Preexisting Immunity against AAVrh74: In AAV-vector based gene therapies, preexisting anti-AAV antibodies may impede transgene expression at desired therapeutic levels. Following treatment with ELEVIDYS, all patients developed anti-AAVrh74 antibodies. Perform baseline testing for presence of anti-AAVrh74 total binding antibodies prior to ELEVIDYS administration. ELEVIDYS administration is not recommended in patients with elevated anti-AAVrh74 total binding antibody titers greater than or equal to 1:400. Adverse Reactions: The most common adverse reactions (incidence ≥5%) reported in clinical studies were vomiting, nausea, liver injury, pyrexia, and thrombocytopenia. Report negative side effects of prescription drugs to the FDA. Visit or call 1-800-FDA-1088. You may also report side effects to Sarepta Therapeutics at 1-888-SAREPTA (1-888-727-3782). For further information, please see the full Prescribing Information. About Sarepta TherapeuticsSarepta is on an urgent mission: engineer precision genetic medicine for rare diseases that devastate lives and cut futures short. We hold leadership positions in Duchenne muscular dystrophy (Duchenne) and limb-girdle muscular dystrophies (LGMDs) and are building a robust portfolio of programs across muscle, central nervous system, and cardiac diseases. For more information, please visit or follow us on LinkedIn, X, Instagram and Facebook. Internet Posting of InformationWe routinely post information that may be important to investors in the 'For Investors' section of our website at We encourage investors and potential investors to consult our website regularly for important information about us. Forward-Looking StatementsThis statement contains "forward-looking statements." Any statements that are not statements of historical fact may be deemed to be forward-looking statements. Words such as "believe," "anticipate," "plan," "expect," "will," "may," "intend," "prepare," "look," "potential," "possible" and similar expressions are intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements relating to our future operations, research and development programs, clinical trials, the potential benefits and risks of ELEVIDYS, and expected plans and milestones, including the potential to expand the label of ELEVIDYS. Actual results could materially differ from those stated or implied by these forward-looking statements as a result of such risks and uncertainties. Known risk factors include the following: different methodologies, assumptions and applications we use to assess particular safety or efficacy parameters may yield different statistical results, and even if we believe the data collected from clinical trials are positive, these data may not be sufficient to support approval by the FDA or other global regulatory authorities; success in clinical trials, especially if based on a small patient sample, does not ensure that later clinical trials will be successful, and the results of future research may not be consistent with past positive results or with advisory committee recommendations, or may fail to meet regulatory approval requirements for the safety and efficacy of product candidates; we may not be able to comply with all FDA requests in a timely manner or at all; the possible impact of regulations and regulatory decisions by the FDA and other regulatory agencies on our business; our products or product candidates may be perceived as insufficiently effective, unsafe or may result in unforeseen adverse events; our products or product candidates may cause undesirable side effects that result in significant negative consequences following any marketing approval; and those risks identified under the heading "Risk Factors" in our most recent Annual Report on Form 10-K for the year ended December 31, 2024 filed with the Securities and Exchange Commission (SEC) as well as other SEC filings made by the Company, which you are encouraged to review. Any of the foregoing risks could materially and adversely affect the Company's business, results of operations and the trading price of Sarepta's common stock. For a detailed description of risks and uncertainties Sarepta faces, you are encouraged to review the SEC filings made by Sarepta. We caution investors not to place considerable reliance on the forward-looking statements contained herein. Sarepta does not undertake any obligation to publicly update its forward-looking statements based on events or circumstances after the date hereof, except as required by law. References: U.S. Centers for Disease Control: View source version on Contacts Investor: Ian Estepan617-274-4052iestepan@ Media: Tracy Sorrentino617-301-8566tsorrentino@ Kara Hoeger617-710-3898KHoeger@ Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
