A Study of SPD465 in Young Adult Drivers With Attention-Deficit Hyperactivity Disorder (ADHD) Using Driving Simulators

A Phase IIIb Study to Evaluate the Efficacy and Time Course of Treatment With SPD465 Compared to Placebo on Simulated Driving Safety and Performance in Adults With Attention-Deficit Hyperactivity Disorder (ADHD)

The purpose of this study is to determine whether SPD465 is safe and effective in the treatment of ADHD in young adult drivers after a duration of 16 hours.

Study Overview

• Status: Withdrawn
• Conditions: Attention Deficit Hyperactivity Disorder
• Intervention / Treatment: Drug: SPD465; Other: Placebo

• Study Type: Interventional
• Phase: Phase 3

Contacts and Locations

Study Locations

• United States
  • Florida
    • Tampa, Florida, United States
      • Meridien Research

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 19 years to 25 years (ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Subject must have a valid driver's license with a minimum of 3 years of driving experience.
2. Subject reports daily driving activity.
3. Subject is fluent in English.
4. Subject must be male or non-pregnant, non-lactating female who agrees to comply with any applicable contraceptive requirements of the protocol.
5. Subject must have a satisfactory medical assessment with no clinically significant or relevant abnormalities
6. Subject meets DSM-IV-TR criteria for a primary diagnosis of ADHD) established by a comprehensive psychiatric evaluation that reviews DSM-IV-TR criteria

Exclusion criteria:

1. Subject is significantly underweight or morbidly obese.
2. Subject has a controlled (requiring a restricted medication) or uncontrolled, comorbid psychiatric diagnosis with significant symptoms such as Post Traumatic Stress Disorder (PTSD), psychosis, bipolar illness, severe obsessive compulsive disorder, severe depressive or severe anxiety disorder or other symptomatic manifestations that, in the opinion of the examining Physician, will contraindicate SPD465 treatment or confound efficacy or safety assessments.
3. Subject with a lifetime history of psychosis or bipolar disorder.
4. Subject with any concurrent chronic or acute illness or unstable medical condition, either treated or untreated.
5. Subject with a history of mental retardation or a severe learning disability.
6. Subject is naïve to ADHD treatment with methylphenidate or amphetamine.
7. Subject has a history of glaucoma or narrow angle glaucoma.
8. Subject has a history of seizure (other than infantile febrile seizures), any tic disorder, or a current diagnosis and/or family history of Tourette's Disorder.
9. Subject has known cardiac structural abnormalities as well as any other condition that may affect cardiac performance.
10. Subject has clinically significant ECG or laboratory abnormalities at Screening or Baseline.
11. Subject has a history of hypertension or has a resting sitting systolic blood pressure >139mmHg or diastolic blood pressure >89mmHg10.
12. Subject has used any psychoactive prescription medication or over-the-counter (OTC) medication requiring more than a 28-day washout. Hormonal contraceptives are acceptable.
13. Subject has a documented allergy, intolerance, or documented history of non-responsivity to amphetamine.
14. Subject currently has (or had a history within the last 6 months) a substance use disorder (excluding nicotine).
15. Subject has taken another investigational drug or taken part in a clinical trial within the last 30 days prior to Screening.
16. Female subject is pregnant or lactating.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: CROSSOVER
• Masking: TRIPLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: SPD465 then Placebo	Drug: SPD465; Other: Placebo; Placebo is a material that may look similar to SPD465, however, contains no active drug.
Experimental: Placebo then SPD465	Drug: SPD465; Other: Placebo; Placebo is a material that may look similar to SPD465, however, contains no active drug.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Simulated Driver Safety (DS) Score averaged over 3 driving assessments at one interim and one final visit.	Interim visit = Week 3; Final visit = Week 7.

Secondary Outcome Measures

Outcome Measure	Time Frame
Interim & final visits: Attention-Deficit Hyperactivity Disorder Rating Scale - 4th Edition (ADHD-RS-IV)	Interim visit = Week 3; Final visit = Week 7.
Interim & final visits: Clinical Global Impressions of Improvement (CGI-I)	Interim visit = Week 3; Final visit = Week 7.
Interim & final visits: Self-Rating of Simulated Driver Safety (DS) Performance Questionnaire	Post DS Testing - Interim visit = Week 3; Post DS Testing - Final visit = Week 7.

Collaborators and Investigators

• Sponsor: Shire

Study record dates

Study Major Dates

• Study Start (Actual): April 30, 2007
• Primary Completion (Actual): June 15, 2007
• Study Completion (Actual): June 15, 2007

Study Registration Dates

• First Submitted: April 2, 2007
• First Submitted That Met QC Criteria: April 9, 2007
• First Posted (Estimate): April 10, 2007

Study Record Updates

• Last Update Posted (Actual): July 6, 2021
• Last Update Submitted That Met QC Criteria: July 1, 2021
• Last Verified: July 1, 2021

More Information

Terms related to this study

• Keywords: Attention-Deficit Hyperactivity Disorder (ADHD)
• Additional Relevant MeSH Terms: Mental Disorders; Pathologic Processes; Nervous System Diseases; Neurologic Manifestations; Dyskinesias; Attention Deficit and Disruptive Behavior Disorders; Neurodevelopmental Disorders; Disease; Attention Deficit Disorder with Hyperactivity; Hyperkinesis
• Other Study ID Numbers: SPD465-311