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RECRUITING
NCT06447480
PHASE3

Clinical Trial to Compare Oral Isotretinoin to Standard of Care in Moderate Acne Skin of Color Patients

Sponsor: Centre Hospitalier Universitaire de Nice

View on ClinicalTrials.gov

Summary

In Dermatology, assessment of people of color remains underrepresented in RCTs (\<10%) and guidelines. Acne affects around 9% of the population worldwide and negatively affects quality of life and self-esteem with anxiety, suicidal ideation and physical scarring. Main lesions associate comedons, inflammatory papules and pustules which grading of severity allows decision-making, e.g., topicals in mild acne and isotretinoin in severe acne. In darker skin type patients, i.e., Fitzpatrick phototypes IV-VI, acne-related pigmentation (ARP) occurs in 65% of cases which reflects either per- or post-inflammatory hyperpigmentation. Whatever is the mechanism, ARP (number, size, importance of dyschromia) impacts the quality of life in such patients. In moderate acne, treatment is based on oral antibiotics for 3 months, i.e., doxycycline or lymecycline, with topical treatment like tretinoin targeting comedons (and potentially ARP). However, oral antibiotics first-line were developed in white skin patients only and never showed its efficacy in ARP. Moreover, doxycycline could be associated with new-onset hyperpigmentation in acne patients. Isotretinoin -acting on the sebaceous gland and therefore the most effective drug in acne- is only prescribed after failure of antibiotics according to the guidelines.The main objective: To assess the superiority at M6 of a treatment of moderate facial acne in skin of color patients with oral isotretinoin in first line compared to the current standard of care on the severity of ARP.Multicenter randomized controlled trial - open study. The number of subjects required for the trial = 420

Official title: Randomized Clinical Trial to Compare Oral Isotretinoin to Standard of Care in Moderate Acne Skin of Color Patients: ETHNIC Study

Key Details

Gender

All

Age Range

13 Years - 30 Years

Study Type

INTERVENTIONAL

Enrollment

420

Start Date

2025-07-01

Completion Date

2027-09-01

Last Updated

2025-03-25

Healthy Volunteers

No

Conditions

Interventions

DRUG

ISOtretinoin 5 MG

The dose is usually of 0.5 mg/kg/d. If tolerance is poor, the dose of isotretinoin can be decreased to 0.25 mg/kg/d. After 3 months of treatment, a clinical evaluation is performed. The dose of isotretinoin can be increased up to 1 mg/kg/d depending on the efficacy (ECLA graded as moderated or severe) and tolerance. A total cumulative dose between 120 to 150 mg/kg is recommended.

DRUG

Topical cream

Topical retinoic acid (Effederm®) or adapalene cream (Differine®), associated during the 3 first months with doxycycline or lymecycline 100 mg/d. After 3 months, the efficacy is assessed. If acne improved, oral antibiotics are stopped and only the topical treatment is continued. If the ECLA is graded as moderated or severe, isotretinoin should be introduced.

Locations (16)

CHU de Nice - Hôpital de l'Archet

Nice, Alpes-Maritimes, France

CHU de Bordeaux

Bordeaux, Aquitaine, France

CHU de Nantes

Nantes, Loire-Atlantique, France

chu de Rouen

Rouen, Seine-maritime, France

Cabinet de dermatologie St Maxime

Sainte-Maxime, Var, France

CH D'argenteuil

Argenteuil, France

Cabinet Dermatologique Brest 1

Brest, France

Cabinet Dermatologique Brest 2

Brest, France

Cabinet dermatologique Cenon

Cenon, France

Cabinet dermatologique gradignan

Gradignan, France

CHU de la réunion

La Réunion, France

Cabinet dermatologique privé

Paris, France

CH Avicenne - APHP

Paris, France

Hôpital Béclére

Paris, France

APHP

Paris, Île-de-France Region, France

CH de Cayenne 3 Avenue Alexis Blaise, BP6006

Cayenne, French Guiana