This trial is active, not recruiting.

Condition erythropoietic protoporphyria
Treatments afamelanotide, placebo
Phase phase 3
Sponsor Clinuvel Pharmaceuticals Limited
Start date May 2012
End date April 2013
Trial size 93 participants
Trial identifier NCT01605136, CUV039


This is a randomized placebo-controlled study to be conducted in two parallel study arms for a six month period (three doses). Between 75 and 100 eligible patients will be enrolled. Patients will receive afamelanotide (16 mg implants) or placebo according to the following dosing regimen:

- Group A will be administered afamelanotide implants on Days 0, 60 and 120

- Group B will be administered placebo implants on Days 0, 60 and 120

The number and severity of phototoxic reactions, the type and duration of sun exposure, treatment-emergent adverse events and the use of concomitant medication will be recorded by patients in study diaries between Days 0 and 180. Quality of life will be measured using the DLQI and EPP-QoL at Days 0, 60, 120 and 180. Participants will visit the clinic on Days 60, 120 and 180 for assessments of adverse events.

A subset of patients will be photoprovoked on the lower back and dorsal surface of the hand and the minimal symptom dose (MSD) will be determined on Days 0, 30, 60, 90 and 120.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking double blind (subject, caregiver, investigator, outcomes assessor)
Primary purpose treatment
One 16mg subcutaneous implant every 2 months for 6 months.
(Placebo Comparator)
One placebo subcutaneous implant every 2 months for 6 months

Primary Outcomes

Duration of direct sunlight exposure between 10:00 and 18:00 hours on days when no pain was experienced (pain score of 0).
time frame: 6 months

Secondary Outcomes

Combined sun exposure and phototoxic pain
time frame: 6 months
Sun exposure
time frame: 6 months
Quality of life
time frame: 6 months
time frame: 6 months
Phototoxicity - phototoxic pain
time frame: 6 months
Safety and Tolerability Endpoints
time frame: 6 months

Eligibility Criteria

Male or female participants at least 18 years old.

Inclusion Criteria: - Male or female subjects with characteristic symptoms of EPP phototoxicity and a biochemically-confirmed diagnosis of EPP. - Aged 18 years old and above (inclusive). - Able to understand and sign the written Informed Consent Form. - Willing to take precautions to prevent pregnancy until completion of the study (Day 180). Exclusion Criteria: - Any allergy to afamelanotide or the polymer contained in the implant or to lidocaine or other local anesthetic to be used during the administration of the study medication - EPP patients with significant hepatic involvement - Personal history of melanoma or dysplastic nevus syndrome. - Current Bowen's disease, basal cell carcinoma, squamous cell carcinoma, or other malignant or premalignant skin lesions. - Any other photodermatosis such as polymorphic light eruption, actinic prurigo, discoid lupus erythematosus, chronic actinic dermatitis or solar urticaria. - Any evidence of clinically significant organ dysfunction or any clinically significant deviation from normal in the clinical or laboratory determinations. - Acute history of drug or alcohol abuse (in the last 6 months). - Patient assessed as not suitable for the study in the opinion of the Investigator (e.g. noncompliance history, allergic to local anesthetics, faints when given injections or giving blood). - Participation in a clinical trial for an investigational agent within 30 days prior to the screening visit. - Prior and concomitant therapy with medications which may interfere with the objectives of the study, including drugs that cause photosensitivity or skin pigmentation. - Female who is pregnant (confirmed by positive serum β-HCG pregnancy test prior to baseline) or lactating. - Females of child-bearing potential (pre-menopausal, not surgically sterile) not using adequate contraceptive measures (i.e. oral contraceptives, diaphragm plus spermicide, intrauterine device).

Additional Information

Official title A Phase III, Multicentre, Double-Blind, Randomized, Placebo-Controlled Study to Confirm the Safety and Efficacy of Subcutaneous Bioresorbable Afamelanotide Implants in Patients With Erythropoietic Protoporphyria (EPP)
Principal investigator Robert Desnick, MD
Description Afamelanotide is a man-made drug being studied for use as a preventative medication for Erythropoietic Protoporphyria (EPP) sufferers. It is a synthetically produced analogue of human alpha melanocyte stimulating hormone (alpha-MSH) and is not yet available on the market. The purpose of this study is to look at whether afamelanotide can reduce the number and severity of EPP symptoms when patients are exposed to light. This study will also look at how the drug is tolerated when taken by people with EPP. The study will involve the use of an implant, which comes in the form of a small rod to be administered under the skin. The implant may contain the study drug afamelanotide or a placebo (inactive medication). Over 620 subjects have been treated with afamelanotide to date with no serious safety concerns identified. For this study, afamelanotide has been formulated as a controlled release depot injection (implant). This means that the afamelanotide will be released slowly into the body over a few days. This study aims to confirm the photoprotective properties if afamelanotide demonstrated in the earlier Phase II and phase III studies.
Trial information was received from ClinicalTrials.gov and was last updated in March 2013.
Information provided to ClinicalTrials.gov by Clinuvel Pharmaceuticals Limited.