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Study identifier: NCT06845540 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Oral Metformin for Treating Melasma in Latin American Women

Condition: Melasma  ·  Sponsor: University of Puerto Rico

PhasePhase 1/Phase 2
Planned participants30
Who can joinFemale, 21 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to learn if metformin can treat melasma in Latin American women. The main question it aims to answer is: \- Can metformin help reduce the dark patches of melasma? Researchers will test two different doses of metformin (500 mg and 1000 mg) to see if either one helps improve melasma. Participants will: * Take a metformin pill every day for three months. * Go to the clinic twice: once at the beginning and once at the end of the study. * Get a phone call from the researchers to check how they're doing and ask about any changes or side effects.

This description comes directly from the study's public registry record.

Talk to the study team

Cristina Brau  ·  787-758-2525  ·  cbrau@skinbybrau.com

Camila Cordero  ·  camila.cordero@upr.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Administración de Servicios Médicos (ASEM) Clinicas ExternasSan Juan, PR, Puerto RicoRecruiting

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Source record: clinicaltrials.gov/study/NCT06845540