【Suzhou, China, 02 November 2026】– CANbridge Pharmaceuticals Inc. (“CANbridge” or the “Company”, Stock Code: 1228.HK), a global biopharmaceutical company focused on rare diseases, is committed to the research, development and commercialization of innovative therapies. The Company announced key pre‑clinical progress for CAN204, its next‑generation dual‑AAV gene‑therapy candidate for Duchenne muscular dystrophy (DMD). Findings from the CAN204 program have been accepted for an oral abstract presentation titled An RNA-based dual AAV vector system to deliver large dystrophins with high efficiency to muscle for the treatment at the American Society of Gene and Cell Therapy’s Breakthroughs in Cell and Gene Therapy Conference (“ASGCT Breakthroughs 2026”), to be presented in Nashville, Tennessee, on November 12, 2026.
Hosted by the American Society of Gene and Cell Therapy (ASGCT), ASGCT Breakthroughs is a high‑profile thematic conference in cell and gene therapy, serving as an important barometer for the translation of cutting‑edge technologies. The meeting prioritizes high‑impact research with clear translational potential. Oral presentation slots are highly competitive and granted only to a limited number of studies featuring notable innovation and translational value. Acceptance of this oral presentation reflects strong validation from the international scientific review committee specifically for CANbridge’s DMD program and more broadly demonstrates the Company’s global R&D competitiveness in advanced gene therapies.
CAN204 is CANbridge’s next‑generation dual‑AAV gene‑therapy candidate for DMD, built upon the StitchR™ (Stitch RNA) technology platform that was licensed to CANbridge for global and exclusive use for Dystrophinopathies from Scriptr Global. DMD arises from loss‑of‑function mutations in the DMD gene encoding dystrophin, a large cytoskeletal protein of 427 kDa. Constrained by AAV packaging capacity, current AAV‑based gene‑therapy candidates can only deliver sequences encoding truncated micro‑dystrophin, which typically covers only 30‑40% of the full‑length coding sequence and may lack important functional subdomains, potentially limiting clinical efficacy. Leveraging self‑cleaving ribozymes, the StitchR™ platform enables precise trans‑ligation of two precursor RNAs delivered by separate AAV vectors to generate a single large mRNA. This overcomes AAV packaging limits and enables efficient expression of midi‑dystrophin transgenes up to 7.5 kb, representing a potentially transformative therapeutic approach for DMD. Underpinning work for the StitchR™ technology has been published in Science.
CANbridge continues to advance the screening and evaluation of multiple AAV capsids for robust delivery of StitchR™ to the muscle and heart and optimize the therapeutic payload. In the pre‑clinical studies to be presented at ASGCT Breakthroughs 2026, MYO4A-delivered CAN204 exhibited optimal muscle protection in the mdx DMD mouse model at therapeutically relevant doses between 5e13 vg/kg to 2e14 vg/kg; muscle force recovered to levels comparable to healthy wild‑type controls following repeated eccentric contraction, and was significantly superior to AAVMYO2 (p<0.0001), AAVMYO3 (p<0.001), AAV9 (p<0.0001) and vehicle control (p<0.0001). Studies also demonstrated that MYO4A, AAVMYO2 and AAVMYO3 all showed greater muscle tropism than conventional AAV9. Even at a lower dose, MYO4A-StitchR-midi-Dys achieved robust muscle protection. These accumulating pre‑clinical data lay a solid foundation for identifying clinical-candidate AAV capsids that perform similar or superior to MYO4A and further advance CAN204 towards human clinical validation.
About Duchenne Muscular Dystrophy (DMD)
Duchenne muscular dystrophy (DMD) is one of the most common forms of progressive muscular dystrophy and is listed as entry No. 98 on China’s First Catalogue of Rare Diseases (2018). It is an X‑linked recessive inherited rare neuromuscular disorder predominantly affecting boys. Onset occurs in early childhood, characterized by rapidly progressive muscle degeneration and weakness. Patients typically lose ambulation around age 12 and often succumb to cardiac and respiratory muscle weakness in their twenties. Approximately 250,000 patients worldwide live with DMD, representing substantial unmet medical need.
About CANbridge
CANbridge Pharmaceuticals Inc. (Stock Code: 1228.HK) was founded in 2012 and listed on the Main Board of HKEX in 2021. The Company is a global biopharmaceutical company, with a foundation in China, committed to the research, development and commercialization of transformative therapies to treat rare diseases.
As of June 30, 2026, the Company has a comprehensive pipeline of 8 drug assets targeting prevalent rare diseases that have high unmet needs and significant market potential. The robust pipeline includes 3 marketed products (Hunterase®, Livmarli®, Gaurunning®) and 1 drug candidate at the late clinical stage, covering biologics, small molecules and gene therapies. In the rare disease area, the Company currently has seven biologic and small molecule product candidates. These include MPS II (Hunter syndrome) and other lysosomal storage disorders (LSDs), complement-mediated disorders, hemophilia A, metabolic disorders and rare cholestatic liver diseases including Alagille syndrome (ALGS) and Progressive Familial Intrahepatic Cholestasis (PFIC). Furthermore, CANbridge is investing in the R&D of next-generation gene therapy technologies, which will provide novel, potentially curative therapies for rare genetic diseases with limited treatment options. To support the research, development and commercialization of its pipeline, the Company has built a global partner network including, but not limited to, WuXi AppTec, WuXi Biologics, Baheal Medical, GC Pharma, Mirum, Privus and Scriptr Global.
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