# Clinical and Pharmacogenetic Study of Attention Deficit With Hyperactivity Disorder (ADHD)

> **NCT00483106** · PHASE4 · COMPLETED · sponsor: **McGill University** · enrollment: 885 (actual)

## Conditions studied

- Attention Deficit Hyperactivity Disorder

## Interventions

- **DRUG:** Ritalin
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00483106
- **Lead sponsor:** McGill University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1999-11
- **Primary completion:** 2020-03-31
- **Final completion:** 2020-03-31
- **Target enrollment:** 885 (ACTUAL)
- **Last updated:** 2021-03-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00483106

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00483106, "Clinical and Pharmacogenetic Study of Attention Deficit With Hyperactivity Disorder (ADHD)". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT00483106. Licensed CC0.

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