# Efficacy and Safety of SPD503 in Combination With Psychostimulants

> **NCT00734578** · PHASE3 · COMPLETED · sponsor: **Shire** · enrollment: 461 (actual)

## Conditions studied

- ADHD

## Interventions

- **DRUG:** SPD503-AM
- **DRUG:** SPD503-PM
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00734578
- **Lead sponsor:** Shire
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-09-02
- **Primary completion:** 2009-12-10
- **Final completion:** 2009-12-10
- **Target enrollment:** 461 (ACTUAL)
- **Last updated:** 2021-06-14


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00734578

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00734578, "Efficacy and Safety of SPD503 in Combination With Psychostimulants". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT00734578. Licensed CC0.

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