# NIAAA Natural History Protocol

> **NCT02231840** · — · RECRUITING · sponsor: **National Institute on Alcohol Abuse and Alcoholism (NIAAA)** · enrollment: 7500 (estimated)

## Conditions studied

- Alcohol Use Disorder

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT02231840
- **Lead sponsor:** National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2015-01-21
- **Primary completion:** 2044-12-31
- **Final completion:** 2044-12-31
- **Target enrollment:** 7500 (ESTIMATED)
- **Last updated:** 2026-05-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02231840

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02231840, "NIAAA Natural History Protocol". Retrieved via AI Analytics 2026-09-01 from https://api.ai-analytics.org/clinical/NCT02231840. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*