Last reviewed · How we verify

Afamelanotide and NB-UVB Light

Clinuvel, Inc. · Phase 3 active Small molecule

Afamelanotide stimulates melanin production via alpha-melanocyte-stimulating hormone (α-MSH) receptor activation, which is then enhanced by controlled NB-UVB light exposure to increase skin pigmentation and photoprotection.

Afamelanotide stimulates melanin production via alpha-melanocyte-stimulating hormone (α-MSH) receptor activation, which is then enhanced by controlled NB-UVB light exposure to increase skin pigmentation and photoprotection. Used for Erythropoietic protoporphyria (EPP), X-linked protoporphyria (XLP).

At a glance

Generic nameAfamelanotide and NB-UVB Light
SponsorClinuvel, Inc.
Drug classMelanocortin receptor agonist
TargetMelanocortin-1 receptor (MC1R)
ModalitySmall molecule
Therapeutic areaDermatology
PhasePhase 3

Mechanism of action

Afamelanotide is a synthetic analog of α-MSH that binds to melanocortin-1 receptors on melanocytes, triggering increased melanin synthesis and distribution. When combined with narrowband UVB (NB-UVB) phototherapy, the treatment synergistically enhances melanogenesis and provides photoprotective effects. This combination approach aims to restore protective pigmentation in patients with photosensitive disorders, reducing UV-induced damage and clinical symptoms.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: