Oral isotretinoin for acne

Area of Science:

• Dermatology
• Pharmacology
• Clinical Trials

Background:

• Acne vulgaris affects over 80% of teenagers, impacting mental health.
• Oral isotretinoin targets key acne factors but carries risks.
• Assessing isotretinoin's efficacy and safety is crucial for treatment.

Purpose of the Study:

• To evaluate the effectiveness of oral isotretinoin for acne vulgaris.
• To assess the safety profile of oral isotretinoin in acne treatment.
• To compare isotretinoin with placebo and other acne therapies.

Main Methods:

• Systematic review of 31 randomized clinical trials (RCTs) involving 3836 participants.
• Searched multiple databases up to July 2017, updated in March 2018.
• Included RCTs comparing oral isotretinoin against placebo, other treatments, or different regimens.

Main Results:

• Isotretinoin showed no significant difference in reducing inflammatory lesions versus antibiotics but may slightly improve physician-assessed acne severity.
• A higher risk of less serious adverse effects (e.g., dry skin, lips) was observed with isotretinoin.
• Evidence quality was generally low, with heterogeneity in studies comparing different isotretinoin doses and regimens.

Conclusions:

• Uncertainty remains regarding isotretinoin's efficacy in reducing inflammatory lesions compared to standard treatments.
• Isotretinoin may increase minor adverse effects; risk of serious adverse events is unclear due to limited data.
• Further high-quality research is needed to clarify optimal dosing, long-term outcomes, and safety profiles.