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REPL FDA decision: Apr 10, 2026

Page updated ·next FDA decision on the calendar ·Data as of Oct 11, 2026 9:31 PM ET
The FDA's own letter · Complete Response Letter, BL 125827 (PDF), dated April 10, 2026, released under FDA's CRL transparency program.
Sections the letter addresses (its own headings, read from the PDF's text layer; labeling and administrative sections omitted): Clinical.
✕ COMPLETE RESPONSE LETTER

Replimune Group Inc., RP1 (vusolimogene oderparepvec).

Run-up into the decision (T-120 → T+5)

PDUFA 4/10/26$10.73$4.510/24/25
Daily close, T-120 (10/24/25) through T+5. Run-up high $10.73 on 12/15/25, low $4.5 on 10/27/25 (T-120 to T-1). FDA decision 4/10/26. Historical price action, not a forecast.

Key facts

FDA decision date2026-04-10
OutcomeCRL
Drug / candidateRP1 (vusolimogene oderparepvec) and OPDIVO (
CompanyReplimune Group Inc.
120-day run-up (T-120→T-1)+26.6%

Every FDA approval letter and released Complete Response Letter we hold, by FDA action date: FDA approval letters.

Specialist biotech funds holding REPL, 13F for the quarter ended June 30, 2026

FundSharesValue at quarter endFiling
Baker Bros. Advisors11,045,336$122.3 millionfiled August 14, 2026
RTW Investments7,411,581$82.0 millionfiled August 14, 2026

13F reports list long positions in common stock at quarter end, are due 45 days later, and show no short positions or later trades. Notes, warrants and other instruments are not counted as shares.

Questions

Was RP1 (vusolimogene oderparepvec) approved by the FDA?

Not in this review cycle. A Complete Response Letter, declining to approve the application for RP1 (vusolimogene oderparepvec) in its current form, was announced on April 10, 2026. A CRL is not final; the primary source is linked on this page.

Which company is behind RP1 (vusolimogene oderparepvec)?

RP1 (vusolimogene oderparepvec) is a Replimune Group Inc. (REPL) program. The company announced the FDA decision on April 10, 2026; the FDA's own record of the decision is linked on this page.

How did REPL stock trade into the FDA decision?

Measured over the 120 trading days before the decision (T-120 to T-1), REPL moved +26.6%. That is the recorded price path into this specific event. Historical measurement, not a prediction, and not investment advice.