# Experimental fMRI Study of Guanfacine and Lisdexamfetamine in ADHD Adolescents

> **NCT03333668** · NA · UNKNOWN · sponsor: **King's College London** · enrollment: 20 (estimated)

## Conditions studied

- ADHD

## Interventions

- **DRUG:** Lisdexamfetamine dimesylate
- **DRUG:** Guanfacine Extended Release Oral Tablet
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT03333668
- **Lead sponsor:** King's College London
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2018-10-01
- **Primary completion:** 2022-12-31
- **Final completion:** 2025-03-31
- **Target enrollment:** 20 (ESTIMATED)
- **Last updated:** 2022-08-17

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03333668

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03333668, "Experimental fMRI Study of Guanfacine and Lisdexamfetamine in ADHD Adolescents". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT03333668. Licensed CC0.

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