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Enflonsia

Clesrovimab-Cfor
Immunomodulators
Injection

ENFLONSIA is a long-acting, preventive monoclonal antibody developed to protect infants against a broad range of respiratory syncytial virus (RSV) disease severity. This includes severe cases that may lead to hospitalization. It is the first and only RSV preventive option that offers a weight-independent, single-dose administration, simplifying protection across all infants regardless of size or gestational age. ENFLONSIA provides consistent, season-long immunity with a convenient, once-per-season approach.

Approval Date
09-Jun-25
Data Exclusivity Expiry
09-Jun-29
Market Exclusivity Expiry
09-Jun-37
Commercial snapshot

Market performance & projections

Revenue ($M)
NA
CAGR (%)
NA
Projected sales, 2026–2032 ($M)
Analyst projection, $M per year
2026
218
2027
431
2028
572
2029
694
2030
776
2031
822
2032
894
Molecule profile

Details & specifications

Molecule
Clesrovimab-Cfor
Innovator
MERCK SHARP & DOHME LLC
Dosage Form
Injection
Strength
105 mg/0.7 mL
Therapeutic Category
Immunomodulators
Usage
To prevent respiratory syncytial virus (RSV) lower respiratory tract disease in neonates and infants who are born during or entering their first RSV season
Good to know

Frequently asked questions

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