PMID-31429064 – Bremelanotide First Approval Review

PMID-31429064 – Bremelanotide First Approval Review

Dhillon S, Keam SJ. "Bremelanotide: First Approval," Drugs, 2019;79(14):1599-1606.

Quick Reference

Property Value
PMID 31429064
DOI 10.1007/s40265-019-01187-w
Year 2019
Journal Drugs
Study Type Narrative Review
Evidence Level V
Sample N/A (drug approval review)
Peptide(s) Studied PT-141

Key Findings

  • Comprehensive review of bremelanotide's FDA approval for hypoactive sexual desire disorder (HSDD) in premenopausal women
  • Marketed as Vyleesi (AMAG Pharmaceuticals), approved June 2019
  • Mechanism: melanocortin-4 receptor (MC4R) agonist acting centrally in the hypothalamus and limbic system
  • Derived from Melanotan II via metabolite-based drug design — cyclic heptapeptide
  • Pharmacokinetics: subcutaneous bioavailability ~100%, Tmax ~1 hour, half-life ~2.7 hours
  • Approved dose: 1.75 mg SC as needed, at least 45 minutes before sexual activity
  • Maximum: one dose per 24 hours, no more than 8 doses per month
  • Contraindicated in uncontrolled hypertension due to transient BP elevations
  • Key distinction from flibanserin: on-demand dosing vs daily administration

Study Design

Narrative review summarizing the pharmacological profile, clinical development program, regulatory pathway, and approved prescribing information for bremelanotide (Vyleesi). Covers Phase 2 and Phase 3 clinical trial data, pharmacokinetics, safety profile, and commercial positioning.

Limitations

  • Review article, not primary research
  • Published at time of approval; long-term post-marketing data not yet available
  • Sponsored drug profile format typical of Drugs journal approval reviews

Clinical Relevance

This review provides a concise, authoritative summary of bremelanotide's pharmacology and clinical evidence at the time of FDA approval. It is a useful reference for clinicians seeking to understand the MC4R mechanism, dosing parameters, contraindications, and place in therapy relative to flibanserin. The distinction between central melanocortin-mediated arousal (PT-141) and peripheral vascular mechanisms (PDE5 inhibitors) is clinically important for patient selection.

Related

#research #narrative-review #evidence-level-V