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Upcoming FDA decision · October 26, 2026

bepirovirsen PDUFA date: FDA decision expected October 26, 2026

The FDA is expected to decide on bepirovirsen from Ionis Pharmaceuticals, Inc. in chronic hepatitis B (CHB) by the PDUFA target action date of October 26, 2026. For chronic hepatitis B (CHB). Extracted from SEC filing: EXHIBIT 99.1

A PDUFA date is the FDA's target deadline to complete its review of a drug application — approval, a complete response letter (CRL), or an extension are all possible. What is a PDUFA date? This page is research information, not financial advice.

Source: sec.gov · Data checked October 25, 2026. How we check dates. Confirm dates against the company's or the FDA's announcement before acting.

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October 26
Target action date
NDA
Stage
Verified
Date confidence
—
FDA designations

Questions about this FDA decision

When is the PDUFA date for bepirovirsen?
The FDA's PDUFA target action date for bepirovirsen is October 26, 2026. The FDA can act before that date, and the review can be extended.
What is bepirovirsen being reviewed for?
The application under FDA review covers chronic hepatitis B (CHB).
Which company is developing bepirovirsen?
Ionis Pharmaceuticals, Inc. (IONS).
What can happen on a PDUFA date?
The FDA approves the application, issues a complete response letter (CRL) listing what must be fixed before approval, or extends the review (typically by three months after a major amendment).