BioCentury
ARTICLE | Product Development

Parabilis’ path from POC to new indications and challenging targets

CEO Mathai Mammen discusses the science behind the potential for Helicons to enter degrader, RIPTAC and radiopharmaceutical space

January 21, 2026 1:11 AM UTC

With clinical proof of concept in desmoid tumors and a $305 million crossover round, Parabilis has line of sight to Phase III, and a choice about where to place its next bets. In a conversation with BioCentury, CEO Mathai Mammen explains the path for zolucatetide and why new Helicon-based formats could reach targets small-molecule degraders haven’t.

Mammen, who is also president and chairman of Cambridge, Mass.-based Parabilis Medicines Inc., sat down with BioCentury at the J.P. Morgan Healthcare Conference last week to discuss the company’s decision framework: where to take zolucatetide beyond desmoid, when a combination-first strategy makes sense, and how the Helicon platform could differentiate as it expands into degraders, newer TAC formats, and possibly radiopharmaceuticals...

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Parabilis Medicines Inc.