# Comparison of Refined and Crude Indigo Naturalis Ointment in Treating Psoriasis

> **NCT01022502** · PHASE2 · COMPLETED · sponsor: **Yin-ku Lin** · enrollment: 38 (actual)

## Conditions studied

- Psoriasis Vulgaris

## Interventions

- **DRUG:** refined indigo naturalis ointment
- **DRUG:** crude indigo naturalis ointment

## Key facts

- **NCT ID:** NCT01022502
- **Lead sponsor:** Yin-ku Lin
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-11
- **Primary completion:** 2010-12
- **Final completion:** 2010-12
- **Target enrollment:** 38 (ACTUAL)
- **Last updated:** 2012-10-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01022502

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01022502, "Comparison of Refined and Crude Indigo Naturalis Ointment in Treating Psoriasis". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT01022502. Licensed CC0.

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