# Opsin Receptors in Melasma

> **NCT04417348** · NA · COMPLETED · sponsor: **Universidad Autonoma de San Luis Potosí** · enrollment: 15 (actual)

## Conditions studied

- Melasma

## Interventions

- **DRUG:** Retinoic acid

## Key facts

- **NCT ID:** NCT04417348
- **Lead sponsor:** Universidad Autonoma de San Luis Potosí
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-01-31
- **Primary completion:** 2019-09-30
- **Final completion:** 2019-12-15
- **Target enrollment:** 15 (ACTUAL)
- **Last updated:** 2020-06-04

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04417348

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04417348, "Opsin Receptors in Melasma". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04417348. Licensed CC0.

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