Founder Stories: John Maraganore, CEO of Alnylam pioneering RNAi therapeutics

20 Jun 2023 · 59 min
59:08

In a virtual breakfast fireside chat hosted by New York BIO, former Alnylam CEO John Maraganore recounts the founding of Alnylam, the early biotech venture environment, and the scientific and commercial hurdles of developing RNA interference (RNAi) therapeutics. He describes how a chance meeting with Phil Sharp introduced him to RNAi, his decision to leave Millennium for the nascent Alnylam despite a bearish market, and the difficulty of securing venture capital in the post‑genomics bubble. Maraganore explains the central delivery problem that stalled RNAi, the series of pharmaceutical alliances that failed to align with the technology, and the pivotal 5x15 strategy that refocused the company on a robust clinical pipeline, leading to two rounds of 20‑25% layoffs and the eventual launch of four approved drugs. He details the landmark 2014 deals with Sanofi/Genzyme (global partnership retaining US/EU5 rights) and the acquisition of Merck’s Cerna assets, highlighting the “divide and conquer” approach. The conversation shifts to his tenure as BIO chair (2017‑2021), where he advocated for policies such as PDUFA VI, the 21st Century Cures implementation, and opioid‑crisis response, emphasizing the need for a trusted FDA. He compares Boston and New York biotech ecosystems, noting shifting lab‑space dynamics and talent flow. Looking forward, Maraganore outlines his post‑Alnylam focus: mentoring emerging CEOs, advising venture firms (Arch, Atlas, RTW), serving on a few boards, and chairing the Enlorum Foundation’s advisory group to develop N‑of‑1 antisense therapies. He offers advice to biotech leaders on boldness, patient‑centricity, fair pricing, demonstrating value for reimbursement, and staying engaged in policy. The interview concludes with reflections on emerging modalities—RNA delivery, mRNA, gene editing, PROTACs, and a renewed interest in small‑molecule discovery powered by AlphaFold.

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