Stoke Therapeutics Announces Alignment with Global Regulatory Agencies and Plans to Initiate a Phase 3 Study of Zorevunersen as Potentially the First Disease-Modifying Medicine for the Treatment of Dravet Syndrome

Business Wire01-07 20:00

– Alignment achieved with U.S. Food and Drug Administration (FDA), European Medicines Agency (EMA) and Japan’s Pharmaceuticals and Medical Devices Agency (PMDA) for EMPEROR – – One-year study of ...

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Company plans to start Phase 3 in mid-2025 –。\"I have participated as an investigator in many clinical research studies, nearly all of which have been designed to test the next best anti-seizure medicine,\" said Dr. Kelly Knupp, M.D., MSCS, Professor of Pediatrics and Neurology at the University of Colorado, Anshutz Medical Campus and the Dravet Program Director and Epilepsy Program Lead at Children's Hospital Colorado. \"What families and we as clinicians now want are medicines that go beyond reducing seizures to address the neurodevelopmental issue","collect":0,"end_time":0,"defaultTopTitle":"yahoo.com","property":[],"viewcount":null,"language":"en","relate_stocks":{"BK4561":"索罗斯持仓","BK4139":"生物科技","ASO":"Academy Sports & Outdoors, Inc.","STOK":"Stoke Therapeutics, Inc.","BK4200":"专卖店","LENZ":"Therapeutics"},"translate_title":"Stoke Therapeutics宣布与全球监管机构保持一致，并计划启动Zorevunersen的3期研究，作为治疗Dravet综合征的潜在首个疾病缓解药物","themeId":null,"isJumpTheme":false,"ttsUrl":null,"symbols_score_info":{"ASO":1,"LENZ":1,"STOK":0.9},"content_text":"– Alignment achieved with U.S. Food and Drug Administration (FDA), European Medicines Agency (EMA) and Japan’s Pharmaceuticals and Medical Devices Agency (PMDA) for EMPEROR –\n– One-year study of zorevunersen will evaluate reductions in major motor seizure frequency as well as improvements in behavior and cognition in children and adolescents ages 2 to <18 years old –\n– FDA Breakthrough Therapy designation positions zorevunersen on efficient development path; Company plans to start Phase 3 in mid-2025 –\n– Webcast and conference call for analysts and investors at 8:00AM Eastern Time today –\nBEDFORD, Mass., January 07, 2025--(BUSINESS WIRE)--Stoke Therapeutics, Inc. (Nasdaq: STOK), a biotechnology company dedicated to restoring protein expression by harnessing the body’s potential with RNA medicine, today announced alignment with global regulatory agencies on the design of the Company’s Phase 3 EMPEROR study of zorevunersen as potentially the first disease-modifying medicine for the treatment of Dravet syndrome.\nFollowing successful interactions with the FDA, EMA and PMDA, the Company has finalized its EMPEROR Phase 3 study protocol. The proposed study will evaluate two loading doses of 70mg followed by two maintenance doses of 45mg over 52-weeks compared to sham in children and adolescents ages 2 to <18 with Dravet syndrome. The primary endpoint will be reduction in major motor seizure frequency. Key secondary endpoints will include improvements in cognition and behavior as measured primarily by Vineland-3. The Company plans to initiate the Phase 3 study in mid-2025.\n\"Alignment around a global Phase 3 study design for zorevunersen puts us one step closer to our goal of delivering the first disease-modifying medicine for the treatment of Dravet syndrome,\" said Edward M. Kaye, M.D., Chief Executive Officer of Stoke Therapeutics. \"The level of attention and enthusiasm from clinicians, patient organizations and regulatory authorities for this study\nspeaks to the shared understanding that current treatments are inadequate. Their support also underscores a belief in the data from our clinical studies that demonstrated substantial and durable reductions in seizure frequency and improvements across multiple measures of cognition and behavior, when treated with a similar dosing regimen. We look forward to continuing to work together with a sense of purpose and urgency as we prepare to initiate the EMPEROR study by mid-year.\"\n\"I have participated as an investigator in many clinical research studies, nearly all of which have been designed to test the next best anti-seizure medicine,\" said Dr. Kelly Knupp, M.D., MSCS, Professor of Pediatrics and Neurology at the University of Colorado, Anshutz Medical Campus and the Dravet Program Director and Epilepsy Program Lead at Children's Hospital Colorado. \"What families and we as clinicians now want are medicines that go beyond reducing seizures to address the neurodevelopmental issues associated with Dravet syndrome, including giving patients the ability to communicate with the people around them and achieve a certain level of independence, which cannot be achieved with today’s standard of care. This is the first Phase 3 study to assess the effects of a disease-modifying medicine on seizures as well as multiple aspects of cognition and behavior, which could lead us into a new era in the treatment of Dravet syndrome.\"\nZorevunersen was recently granted FDA Breakthrough Therapy Designation, a process designed to expedite the development and review of drugs that are intended to treat a serious condition and preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over available therapy on a clinically-significant endpoint(s).\nClinical Data Support the Phase 3 Dosing Regimen\nThe Company recently presented data demonstrating that patients treated with two or three doses of 70mg in the Phase 1/2a study and two doses of 45mg in an open-label extension study (OLE), experienced an 87% median reduction in convulsive seizure frequency at month eight (four months after the second dose of 45mg). Patients experienced continuing improvements in multiple measures of cognition and behavior as measured by the Vineland-3 through 2 years of treatment with ongoing maintenance dosing in the OLEs. Additional improvements were indicated within the first nine months of treatment among patients in the Phase 1/2a study. These effects were observed in patients who were already receiving the best available anti-seizure medicines.\nZorevunersen has been generally well tolerated across the studies. To date, more than 600 doses of zorevunersen have been administered to patients across multiple studies, with some patients remaining on treatment for more than three years.\nEMPEROR Pivotal Phase 3 Design Summary\nThe pivotal Phase 3 study will be a global, randomized, double-blind, sham-controlled trial.\nAnticipated Enrollment: Approximately 150 patients with Dravet syndrome between the ages of 2 to <18 years of age.Diagnosis: A confirmed variant in the SCN1A gene not associated with a gain of function.Primary Endpoint: Percent change from baseline in major motor seizure frequency in patients receiving zorevunersen as compared to sham.Key Secondary Endpoints: Durability of effect on major motor seizure frequency. Improvements in behavior and cognition as measured by Vineland-3 subdomains, including expressive communication, receptive communication, interpersonal relationships, coping skills and personal skills.Additional Endpoints: Safety, Clinician Global Impression of Change (CGI-C), Caregiver Global Impression of Change (CaGI-C), and the Bayley Scales of Infant Development (BSID-IV).Global Participation: The study will be conducted in the UK, US, EU, and Japan.Duration: 60 weeks (8-week baseline period followed by 52-week treatment period)Phase 3 Data: Data are anticipated by the end of 2027, pending enrollment and study timelines.Continuing Treatment: Patients who are eligible will be offered ongoing treatment with zorevunersen as part of an OLE study.\nStoke Webcast and Conference Call for Analysts and Investors\nStoke management will host a webcast and conference call for analysts and investors on Tuesday, January 7, 2025, at 8:00am Eastern Time. The call will focus on the successful alignment with global regulatory agencies related to a Phase 3 study of zorevunersen. The webcast will be available on the Investors & News section of Stoke’s website at https://investor.stoketherapeutics.com/. Research analysts who plan to join the call and participate in the Q&A session may register here to receive the dial-in details and a unique PIN. All other participants are invited to access the listen-only webcast by clicking here. A replay of the webcast will be archived and available for at least 90 days following the event.\nAbout Dravet Syndrome\nDravet syndrome is a severe developmental and epileptic encephalopathy (DEE). Dravet syndrome is difficult to treat and has a poor long-term prognosis. Complications of the disease often contribute to a poor quality of life for patients and their caregivers. Dravet syndrome is characterized by frequent, prolonged and refractory seizures, beginning within the first year of life. Beyond seizures, Dravet syndrome is associated with developmental and cognitive impairments that often include intellectual disability, developmental delays, movement and balance issues, language and speech disturbances, growth defects, sleep abnormalities, disruptions of the autonomic nervous system and mood disorders. Compared with the general epilepsy population, people living with Dravet syndrome have a higher risk of sudden unexpected death in epilepsy, or SUDEP. There are no approved disease-modifying therapies for people living with Dravet syndrome. One in 15,600 babies are born with Dravet syndrome, which is not concentrated in a particular geographic area or ethnic group.\nAbout Zorevunersen\nZorevunersen is an investigational new medicine for the treatment of Dravet syndrome currently being evaluated in ongoing clinical trials. Stoke believes that zorevunersen, a proprietary antisense oligonucleotide (ASO), has the potential to be the first disease-modifying therapy to address the genetic cause of Dravet syndrome. Zorevunersen is designed to upregulate NaV1.1 protein expression by leveraging the non-mutant (wild-type) copy of the SCN1A gene to restore physiological NaV1.1 levels, thereby reducing both occurrence of seizures and significant non-seizure comorbidities. Zorevunersen has been granted orphan drug designation by the FDA and the EMA. The FDA has also granted zorevunersen rare pediatric disease designation and Breakthrough Therapy Designation for the treatment of Dravet syndrome with a confirmed mutation, not associated with gain-of-function, in the SCN1A gene.\nAbout Stoke Therapeutics\nStoke Therapeutics (Nasdaq: STOK), is a biotechnology company dedicated to restoring protein expression by harnessing the body’s potential with RNA medicine. Using Stoke’s proprietary TANGO (Targeted Augmentation of Nuclear Gene Output) approach, Stoke is developing antisense oligonucleotides (ASOs) to selectively restore protein levels. Stoke’s first compound, zorevunersen (STK-001), is in clinical testing for the treatment of Dravet syndrome, a severe and progressive genetic epilepsy. Dravet syndrome is one of many diseases caused by a haploinsufficiency, in which a loss of ~50% of normal protein levels leads to disease. Stoke is pursuing the development of STK-002 for the treatment of autosomal dominant optic atrophy (ADOA), the most common inherited optic nerve disorder. Stoke’s initial focus is haploinsufficiencies and diseases of the central nervous system and the eye, although proof of concept has been demonstrated in other organs, tissues, and systems, supporting its belief in the broad potential for its proprietary approach. Stoke is headquartered in Bedford, Massachusetts with offices in Cambridge, Massachusetts. For more information, visit https://www.stoketherapeutics.com/.\nCautionary Note Regarding Forward-Looking Statements\nThis press release contains forward-looking statements within the meaning of the \"safe harbor\" provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to: the ability of zorevunersen to treat the underlying causes of Dravet syndrome and reduce seizures or show improvements in behavior and cognition at the indicated dosing levels or at all; the design, timing and results of the Phase 3 clinical trial; and the timing and expected progress of data readouts, regulatory meetings, regulatory decisions and other presentations. Statements including words such as \"expect,\" \"plan,\" \"will,\" \"continue,\" or \"ongoing\" and statements in the future tense are forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions, which, if they prove incorrect or do not fully materialize, could cause our results to differ materially from those expressed or implied by such forward-looking statements, including, but not limited to, risks and uncertainties related to: the Company’s ability to advance, obtain regulatory approval or, and ultimately commercialize its product candidates, including zorevunersen; the timing of data readouts and interim and final results of nonclinical and clinical trials; the receipt and timing of potential regulatory decisions; positive results in a clinical trial may not be replicated in subsequent trials or successes in early state clinical trials may not be predictive of results in later stage trials; the Company’s ability to fund development activities and achieve development goals, including expectations regarding the Company’s collaboration with Acadia Pharmaceuticals; the Company’s ability to protect its intellectual property; the direct or indirect impact of global business, political and macroeconomic conditions, including inflation, interest rate volatility, cybersecurity events, uncertainty with respect to the federal budget, instability in the global banking system, volatile market conditions, and global events, including public health crises and ongoing geopolitical conflicts, such as the conflicts in Ukraine and the Middle East; and other risks and uncertainties described under the heading \"Risk Factors\" in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, its quarterly reports on Form 10-Q, and the other documents it files from time to time with the Securities and Exchange Commission. These forward-looking statements speak only as of the date of this press release, and the Company undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date hereof.\nView source version on businesswire.com: https://www.businesswire.com/news/home/20250107493873/en/\nContacts\nStoke Media & Investor Contacts: Dawn KalmarChief Communications Officerdkalmar@stoketherapeutics.com 781-303-8302Doug SnowDirector, Communications & Investor RelationsIR@stoketherapeutics.com 508-642-6485","kind":"highlight","is_publish_news":true,"is_publish_highlight":false,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"1","news_tag":"","news_rank":0,"symbols":[],"gpt_button":1},"commentList":[],"isCommentEnd":true,"newsSizeData":{"likeSize":0,"commentSize":0,"repostSize":0,"favoriteSize":0,"likeStatus":false,"favoriteStatus":false},"APP":{"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","isDev":false,"isTTM":true,"deviceId":"web-server-community-laohu8-v3","version":"4.30.0","shortVersion":"4.30.0","platform":"web","vendor":"web","appName":"ttm","isIOS":false,"isAndroid":false,"isTiger":false,"isTHS":false,"isWeiXin":false,"isWeiXinMini":false,"isWeiBo":false,"isQQ":false,"isBaiduSwan":false,"isBaiduBox":false,"isDingTalk":false,"isToutiao":false,"isOnePlus":false,"isHuaWei":false,"isXiaomi":false,"isXiaomiWebView":false,"isOppo":false,"isVivo":false,"isSamsung":false,"isMobile":false},"href":"/m/news/2501205804"}