Regeneron and Tessera Partner in $275 Million Deal to Develop Gene Editing for Alpha-1 Antitrypsin Deficiency
Regeneron Pharmaceuticals has entered into a $275 million partnership with Tessera Therapeutics to advance gene editing technologies targeting alpha-1 antitrypsin deficiency (AATD). The collaboration centers on the in vivo editor TSRA-196, which has demonstrated significant potential in preclinical studies by effectively editing SERPINA1, the genetic locus associated with AATD.
Alpha-1 antitrypsin deficiency is a rare genetic disorder that can lead to lung and liver disease. Regeneron’s agreement with Tessera aims to leverage TSRA-196’s capabilities to address this condition through precise genetic modifications. Preclinical research indicates that TSRA-196 achieves robust editing at the SERPINA1 locus, suggesting it could play a critical role in developing treatments for AATD.
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Date: December 1, 2025
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