BLAINJECTIONINJECTABLE
Approved
Jul 2023
Lifecycle
Growth
Competitive Pressure
30/100
Clinical Trials
10
Data completeness
6/8 — Strong
BEYFORTUS (nirsevimab) by AstraZeneca is fusion protein inhibitors [moa]. Approved for respiratory syncytial virus anti-f protein monoclonal antibody [epc]. First approved in 2023.
Drug data last refreshed 2h ago · AI intelligence enriched 1w ago
AI summarySynthesized from FDA + DailyMed + ClinicalTrials.gov data
BEYFORTUS (nirsevimab) is a monoclonal antibody against respiratory syncytial virus (RSV) F protein that provides passive immunization to prevent RSV lower respiratory tract disease. It is administered via single-dose injection to infants and young children during their first RSV season. The drug works by binding to the RSV fusion protein, blocking viral entry and spread in respiratory epithelial cells.
Growth
BEYFORTUS is in early growth phase post-approval with moderate competitive pressure (30%), indicating expanding commercial teams and market-building opportunities.
Mechanism of Action
Fusion Protein Inhibitors
Pharmacologic Class:
Respiratory Syncytial Virus Anti-F Protein Monoclonal Antibody
Indications
Indication data is being enriched from DailyMed and FDA labeling. Check back soon for approved therapeutic uses.
Clinical Trials (10)
An Observational Study to Assess Nirsevimab Immunization Rates in Eligible Infants During Their First RSV Season in the Czechia
Started Jun 2026
257 enrolled
RSV Immunization
A Post-marketing Surveillance Study of Beyfortus (Nirsevimab) in Republic of Korea
Started Oct 2025
3,000 enrolled
Respiratory Syncytial Virus
Study of Monoclonal Antibody Nirsevimab Against Respiratory Syncytial Virus (RSV) in Participants up to 24 Months of Age in India
Started Jul 2025
110 enrolled
RSV Immunization
The Immunology and Safety of Maternal RSV Vaccination (ABRYSVO), Infant Nirsevimab (BEYFORTUS) Immunization, or Both Products
Started Sep 2024
181 enrolled
Respiratory Syncytial Virus Infection
BEYFORTUS™ (Nirsevimab) Effectiveness Against Medically-Attended RSV Events in Infants (BEAR Study)
Started Apr 2024
49,680 enrolled
Respiratory Syncytial Virus
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Data Sources
- Drug label: DailyMed / FDA
- Clinical trials: ClinicalTrials.gov
- Patent data: FDA Orange Book
- Spending data: CMS Medicare
The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.