# Use of N-Acetylcysteine (NAC) in Fingernail Biting

> **NCT01993849** · PHASE3 · COMPLETED · sponsor: **Kevin Gray, MD** · enrollment: 23 (actual)

## Conditions studied

- Onychophagia

## Interventions

- **DRUG:** N-Acetylcysteine (NAC)
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT01993849
- **Lead sponsor:** Kevin Gray, MD
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2013-10
- **Primary completion:** 2015-06
- **Final completion:** 2015-06
- **Target enrollment:** 23 (ACTUAL)
- **Last updated:** 2018-10-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01993849

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01993849, "Use of N-Acetylcysteine (NAC) in Fingernail Biting". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01993849. Licensed CC0.

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