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Clinical Trial to Compare Oral Isotretinoin to Standard of Care in Moderate Acne Skin of Color Patients
Sponsor: Centre Hospitalier Universitaire de Nice
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
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.
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