pdufa.bio
HomeDecisionsRGNX 2026-02-09

RGNX FDA decision: Feb 9, 2026

Updated ·next FDA decision on the calendar
✕ COMPLETE RESPONSE LETTER

REGENXBIO Inc., clemidsogene lanparvovec (RGX-121) - (CAMPSI · MPS II (Hunter Syndrome).

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

PDUFA 2/9/26$15.98$8.038/25/25
Daily close, T-120 (8/25/25) through T+5. Run-up high $15.98 on 1/22/26, low $8.03 on 8/26/25 (T-120 to T-1). FDA decision 2/9/26. Historical price action, not a forecast.

Key facts

FDA decision date2026-02-09
OutcomeCRL
Drug / candidateclemidsogene lanparvovec (RGX-121) - (CAMPSI
CompanyREGENXBIO Inc.
120-day run-up (T-120→T-1)+18.6%

Questions

Was clemidsogene lanparvovec (RGX-121) - (CAMPSI approved by the FDA?

Not in this review cycle. On February 9, 2026 the FDA issued a Complete Response Letter, declining to approve the application for clemidsogene lanparvovec (RGX-121) - (CAMPSI in its current form. A CRL is not final; the primary source is linked on this page.

Which company is behind clemidsogene lanparvovec (RGX-121) - (CAMPSI?

clemidsogene lanparvovec (RGX-121) - (CAMPSI is a REGENXBIO Inc. (RGNX) program. The FDA decision came on February 9, 2026; the company's own announcement is linked on this page.

How did RGNX stock trade into the FDA decision?

Measured over the 120 trading days before the decision (T-120 to T-1), RGNX moved +18.6%. That is the recorded price path into this specific event -- historical measurement, not a prediction, and not investment advice.