pdufa.bio

ENFLONSIA (clesrovimab)

Page updated ·next FDA decision on the calendar ·Data as of Nov 5, 2026 5:03 AM ET

ENFLONSIA (clesrovimab) is a Merck & Co., Inc. program in RSV lower respiratory tract disease in children under 2 at increased risk, through their second RSV season. Its PDUFA date is Mar 22, 2027, the FDA's goal date to complete review of the application. Every date links its source.

MRK catalyst hub

All upcoming FDA decision dates on the 2026 PDUFA calendar

About this program

Indication under review: RSV lower respiratory tract disease in children under 2 at increased risk, through their second RSV season. Sponsor: Merck & Co., Inc. (MRK). Market-cap tier at the time we tracked it: Large. We track 1 catalyst event for this program: 1 upcoming and 0 in the record. A PDUFA date is the FDA's target date to complete review of a marketing application; a readout is the sponsor's expected date for clinical trial results. What a PDUFA date is · why we do not compare trial results across drugs.

Catalyst history

PDUFA · Mar 22, 2027MRK

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

FundSharesValue at quarter endFiling
OrbiMed Advisors663,400$85.2 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

When is ENFLONSIA (clesrovimab)'s next FDA decision or readout?

ENFLONSIA (clesrovimab)'s PDUFA date is Mar 22, 2027. That is the FDA's goal date to complete review of the application; the agency can act earlier or extend it.

What happened at ENFLONSIA (clesrovimab)'s most recent FDA decision?

No FDA decision for ENFLONSIA (clesrovimab) is in our archive yet.

What is ENFLONSIA (clesrovimab) used for?

In our records ENFLONSIA (clesrovimab) is under review or in development for RSV lower respiratory tract disease in children under 2 at increased risk, through their second RSV season.

Who makes ENFLONSIA (clesrovimab)?

Merck & Co., Inc. (MRK).

Where does this data come from?

FDA announcements, sponsor press releases and SEC filings; every date on this page links its source.