Evaluating afamelanotide for patients with Xeroderma Pigmentosum

A Proof of Concept, Phase IIa, Open Label Study to Evaluate the Safety and Efficacy of Subcutaneous Implants of Afamelanotide in Patients With Xeroderma Pigmentosum (XP)

PHASE2 · Clinuvel Pharmaceuticals Limited · NCT05159752

This study tests if a new drug called afamelanotide can help people with Xeroderma Pigmentosum type C heal their skin better after sun exposure and see if it protects them from UV damage.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment6 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorClinuvel Pharmaceuticals Limited (industry)
Locations1 site (Regensburg)
Trial IDNCT05159752 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety and efficacy of afamelanotide in patients diagnosed with Xeroderma Pigmentosum type C (XP-C). It will investigate the drug's potential to enhance skin repair processes following UV-induced DNA damage and determine if it increases the threshold of UV light required to cause such damage. The study will involve patients aged 18 to 75 who have a confirmed genetic diagnosis of XP-C, and will monitor their responses to treatment with afamelanotide.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-75 with a molecular-genetically confirmed diagnosis of XP-C.

Not a fit: Patients with severe hepatic or renal impairment, or those with known allergies to afamelanotide, may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve skin protection and repair for patients with Xeroderma Pigmentosum.

How similar studies have performed: While this approach is novel for XP-C, similar studies evaluating afamelanotide for other conditions have shown promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female patient with a molecular-genetically confirmed diagnosis of XP-C;
* Aged 18-75 years.

Exclusion Criteria:

* Known allergy to afamelanotide or the polymer contained in the implant;
* Presence of severe hepatic disease or hepatic impairment;
* Renal impairment;
* Any other medical condition which may interfere with the study protocol;
* Female who is pregnant (confirmed by positive urine beta-Human chorionic gonadotropin pregnancy test) or lactating;
* Females of child-bearing potential (pre-menopausal, not surgically sterile) not using highly effective contraceptive measures with a failure rate of less than 1% per year when used consistently and correctly (i.e. oral contraceptives, intrauterine device) or a life-style excluding pregnancy, for up to three months after the last implant administration;
* Sexually active man with a partner of child-bearing potential (pre-menopausal, not surgically sterile) who is not using highly effective contraceptive measures, as described above;
* Use of any other prior and concomitant therapy which may interfere with the objective of the study, within 30 days prior to the Screening visit;
* Participation in a clinical trial for an investigational agent within 30 days prior to the Screening visit.

Where this trial is running

Regensburg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Xeroderma Pigmentosum

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.