# Azelaic Acid Versus Hydroquinone in Melasma

> **NCT00927771** · PHASE4 · UNKNOWN · sponsor: **Callender Center for Clinical Research** · enrollment: 30 (estimated)

## Conditions studied

- Melanosis

## Interventions

- **DRUG:** azelaic acid gel
- **DRUG:** hydroquinone cream

## Key facts

- **NCT ID:** NCT00927771
- **Lead sponsor:** Callender Center for Clinical Research
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2009-06
- **Primary completion:** 2010-06
- **Final completion:** 2010-12
- **Target enrollment:** 30 (ESTIMATED)
- **Last updated:** 2009-06-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00927771

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00927771, "Azelaic Acid Versus Hydroquinone in Melasma". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00927771. Licensed CC0.

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