# An Effectiveness and Safety Study Evaluating OROS Methylphenidate Hydrochloride (HCl), Ritalin (Methylphenidate HCl) and Placebo in Children With Attention Deficit Hyperactivity Disorder

> **NCT00269776** · PHASE3 · COMPLETED · sponsor: **Alza Corporation, DE, USA**

## Conditions studied

- Attention Deficit Hyperactivity Disorder

## Interventions

- **DRUG:** Placebo
- **DRUG:** OROS (methylphenidate HCl)
- **DRUG:** Ritalin (methylphenidate)

## Key facts

- **NCT ID:** NCT00269776
- **Lead sponsor:** Alza Corporation, DE, USA
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1998-11
- **Primary completion:** —
- **Final completion:** 1999-01
- **Target enrollment:** — (—)
- **Last updated:** 2011-07-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00269776

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00269776, "An Effectiveness and Safety Study Evaluating OROS Methylphenidate Hydrochloride (HCl), Ritalin (Methylphenidate HCl) and Placebo in Children With Attention Deficit Hyperactivity Disorder". Retrieved via AI Analytics 2026-09-23 from https://api.ai-analytics.org/clinical/NCT00269776. Licensed CC0.

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