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A Phase III, Multicentre, Randomised, Placebo-Controlled Study to Evaluate the Safety and Efficacy of Subcutaneous Bioresorbable CUV1647 Implants in Patients with Erythropoietic Protoporphyria (EPP) - Multicentre Phase III EPP Study

A Phase III, Multicentre, Randomised, Placebo-Controlled Study to Evaluate the Safety and Efficacy of Subcutaneous Bioresorbable CUV1647 Implants in Patients with Erythropoietic Protoporphyria (EPP) - Multicentre Phase III EPP Study

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-000636-13-FR
Enrollment
80
Registered
2008-05-09
Start date
2008-07-08
Completion date
Unknown
Last updated
2021-10-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Erythropoietic Protoporphyria (EPP) MedDRA version: 9.1 Level: LLT Classification code 10015289 Term: Erythropoietic protoporphyria

Interventions

Product Name: CUV1647 Product Code: CUV1647 Pharmaceutical Form: Implant Pharmaceutical form of the placebo: Implant Route of administration of the placebo: Subcutaneous use

Sponsors

Clinuvel Pharmaceuticals Limited
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Male or female subjects with a positive diagnosis of EPP (confirmed by elevated free protoporphyrin in peripheral erythrocytes) Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: -Allergy to CUV1647 or the polymer contained in the implant or to lignocaine or other local anaesthetic to be used during the administration of the study medication -Any other photodermatosis such as PLE, DLE or solar urticaria. -Female who is pregnant, lactating or of childbearing potential and not using adequate form(s) of contraception. -Any evidence of clinically significant organ dysfunction or any clinically significant deviation from normal in the clinical or laboratory determinations. -Current Bowen’s disease, basal cell carcinoma, squamous cell carcinoma, or other malignant or premalignant skin lesions. -Personal history of melanoma or dysplastic nevus syndrome.

Design outcomes

Primary

MeasureTime frame
Main Objective: -determine whether CUV1647 can reduce the number of phototoxic reactions in patients with EPP -determine whether CUV1647 can reduce the severity of phototoxic reactions in patients with EPP ;Secondary Objective: -determine whether CUV1647 can increase the duration of sunlight tolerated by EPP patients -determine whether CUV1647 increases melanin density in the skin at several specified body sites -evaluate the safety and tolerability of CUV1647 by measuring treatment-emergent adverse events (AEs) -determine whether CUV1647 can improve the quality of life of EPP patients -in a subset of patients, determine whether CUV1647 implants can reduce the susceptibility to provocation with a standardized light source (time to appearance of provoked symptoms) ;Primary end point(s): -The mean number of phototoxic reactions that occur whilst patients are on active compared with placebo implants. That is, the mean number of phototoxic reaction in (active) Group A between Days 0-60, 120-180, 240-300 plus Group B between Days 60-120, 180-240, 300-360 compared with (placebo) Group A between Days 60-120, 180-240, 300-360 plus Group B between Days 0-60, 120-180, 240-300 -The mean severity score for phototoxic reactions that occur whilst patients are on active compared with placebo implants. That is, the mean severity score in (active) Group A between Days 0-60, 120-180, 240-300 plus Group B between Days 60-120, 180-240, 300-360 compared with (placebo) Group A between Days 60-120, 180-240, 300-360 plus Group B between Days 0-60, 120-180, 240-300 Null Hypothesis: there is no difference between the mean number and severity of phototoxic reactions that occurred in patients treated with active and placebo.

Countries

France, Germany, Italy, Netherlands, Sweden, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026