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Biogen gets worldwide development and commercialization rights to felzartamab

21 April 2026

US biotech major Biogen (Nasdaq: BIIB) and TJ Biopharma have entered into a definitive agreement under which Biogen has agreed to acquire TJ Bio’s exclusive rights to felzartamab in the Greater China Region. With this agreement, Biogen now owns exclusive worldwide rights to felzartamab, which is currently being evaluated in global Phase III clinical studies across multiple immune-mediated diseases.

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