A Long Term Study of a Medication for Adults With Attention-Deficit/Hyperactivity Disorder (ADHD)

Study Overview
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Brief Summary
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LYDO is a multi-center study that will enroll approximately 1925 adult outpatients with Attention Deficit/Hyperactivity Disorder (ADHD). Patients will receive, under open label conditions, atomoxetine up to 100 mg/day during the acute, open-label part of the study. Those patients that meet the response criteria will continue the blind phase of the study up to a year. During that period, patients that respond to atomoxetine will be randomized to continue the treatment with atomoxetine or with placebo (neither the patients nor investigators know if patients receive atomoxetine or placebo).

Official Title
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Maintenance of Response After Open-Label Treatment With Atomoxetine Hydrochloride in Adult Outpatients With Attention-Deficit/Hyperactivity Disorder (ADHD): A Placebo-Controlled, Randomized Withdrawal Study

Conditions
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Attention Deficit Hyperactivity Disorder

Intervention / Treatment
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* Drug: atomoxetine hydrochloride
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adults Male or female Must meet Attention-Deficit/Hyperactivity Disorder (ADHD) according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Text Revision™ (DSM-IV-TR™) criteria Exclusion Criteria: Comorbidity with major psychiatric disorder Clinically significant depression or anxiety Patients with significant medical conditions Current alcohol/drugs abuse/dependence Concomitant excluded medications

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Atomoxetine<br>Atomoxetine 40-100 milligrams per day (mg/day) orally, once daily or twice daily for 24 weeks, followed by atomoxetine 80-100 mg/day orally, once daily or twice daily for 25 weeks. | Drug: atomoxetine hydrochloride<br>* Oral 40-100 mg/day<br>* Other names: atomoxetine;|
| Placebo Comparator: Placebo<br>Atomoxetine 40-100 mg/day orally, once daily or twice daily for 24 weeks, followed by placebo orally, once daily for 25 weeks. | Drug: atomoxetine hydrochloride<br>* Oral 40-100 mg/day<br>* Other names: atomoxetine;Drug: Placebo<br>* Oral delivery of matching placebo<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Maintain a Satisfactory Response During the Double-Blind Maintenance/Randomized Withdrawal Period | Conners' Adult ADHD Rating Scale-Investigator Rated:Screening Version (CAARS-Inv:SV); 30-item scale (3 subscales): inattention, hyperactivity/impulsivity (9 items each), ADHD Index (12 items). Each item is scored 0 (not at all/never) to 3 (very much/very frequently). Total ADHD symptoms score (SS)=inattention+hyperactivity/impulsivity (range:0-54). Higher score=more impairment. Clinical Global Impressions-ADHD-Severity (CGI-ADHD-S) measures participant's overall severity of ADHD symptoms and scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill participants). Maintenance of response during the randomized withdrawal phase was a reduction of ≥30% in the baseline CAARS-Inv:SV Total ADHD SS and a CGI-ADHD-S score ≤3. Participants had to continuously meet the response criteria, except for 1 excursion after assessment at Week 24 through Week 37 and 1 other excursion after assessment at Week 37 through Week 49. Excursions were not permitted at 2 consecutive visits. | Baseline (Week 24) up to Week 49 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Days Until Relapse | Relapse was defined as 2 consecutive visits with a CGI-ADHD-S score ≥4 points and a return to ≥80% of participant's baseline (Visit 2) CAARS-Inv:SV Total ADHD Symptom Score (SS). If the participant showed evidence of a return of symptoms at a single visit that met severity criteria described above, and because of worsening symptoms, was unwilling to remain in the study or did not return for a second visit, the participant was also considered to have relapsed. CAARS-Inv:SV is a 30-item scale (3 subscales): Inattention, Hyperactivity/Impulsivity (9 items each), ADHD Index (12 items). Each item is scored 0 (0=not at all/never) to 3 (very much/very frequently). Total ADHD SS=inattention+hyperactivity/impulsivity (range: 0-54). Higher score=more impairment. CGI-ADHD-S measures participant's overall severity of ADHD symptoms and scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill participants). | Baseline (Week 24) up to Week 49 | 
| Change From Baseline in the Adult Attention-Deficit/Hyperactivity Disorder (ADHD) Quality of Life (AAQoL) Scale From Week 24 to Week 49 | The AAQoL is a self-reported, 29-item scale assessing functional impairments in adults with ADHD. Each item is rated on a 5-point Likert scale; range: 1 (Not at all/ Never) to 5 (Extremely/Very Often). 5-domains of scale include: work functioning, family relationships, social functioning, activities of daily living (driving, managing finances), and psychological adaptation (life satisfaction, self-esteem). These scores are transformed to a 0-100 point scale (1=0; 2=25; 3=50; 4=75; 5=100), and then the item scores are summed and divided by item count to generate overall scores. The overall scores have the same total range of scores of 0-100, with higher scores indicating better quality of life. Least Squares (LS) Mean values were adjusted for baseline AAQoL score and Investigator/site. | Baseline (Week 24), Week 49 | 
| Change From Baseline in Conner's Adult Attention-Deficit/Hyperactivity Disorder (ADHD) Rating Scale (Observer Rated [CAARS-O:SV]) Total ADHD Symptom Score From Week 24 to Week 49 | The CAARS-O:SV is a 30-item observer (typically a significant other or close friend) completed scale containing 3 subscales: inattention (9 items), hyperactivity/impulsivity (9 items), and ADHD Index (12 items). Each item is scored 0-3 (0=not at all/never; 1=just a little/once in a while; 2=pretty much/often; 3=very much/very frequently). Inattention and hyperactivity subscales range from 0-27; ADHD index subscale range is 0-36 with higher scores indicating more impaired participants. Total ADHD symptoms score=sum of the inattention and hyperactivity/impulsivity subscales, ranging from 0-54, with higher scores indicating more impaired participants. Least Squares (LS) Mean values adjusted for treatment, pooled Investigator, and baseline. | Baseline (Week 24), Week 49 | 
| Change From Baseline in Conner's Adult ADHD Rating Scale-Self Rated (CARRS-S:SV) Total ADHD Symptom Score From Week 24 to Week 49 | CAARS-S:SV is a 30-item participant completed scale containing 3 subscales: inattention (9 items), hyperactivity/impulsivity (9 items), ADHD Index (12 items). 0-3 (0=not at all/never; 1=just a little/once in a while; 2=pretty much/often; 3=very much/very frequently). Inattention and hyperactivity subscales range from 0-27; ADHD index subscale range is 0-36 with higher scores indicating more impaired participants. Total ADHD symptoms score=sum of the inattention and hyperactivity/impulsivity subscales; range: 0-54 with higher scores indicating more impaired participants. Least Squares (LS) Mean values adjusted for treatment, pooled Investigator, and baseline. | Baseline (Week 24), Week 49 | 
| Change From Baseline in the Behavior Rating Inventory of Executive Function-Adult Version: Self Report (BRIEF-A:Self Report) Global Executive Composite (GEC) Index Score From Week 24 to Week 49 | The BRIEF-A:Self Report is a 75-item self-reported measure captures adults' views of their own executive functions/self-regulation in their everyday environment. Items include: Inhibit, Shift, Emotional Control, Self Monitor, Initiate, Working Memory, Plan/Organize, Task Monitor, and Organization of Materials. Behavior is rated on a 3-point scale: 1 (behavior is never observed) to 3 (behavior is often observed). GEC Index Score is a subscore of the 75-item BRIEF-A score, reflects overall functioning and was calculated based on 70 items. Total scores range: 70-210. Lower scores = less perceived impairment. Least Squares (LS) Mean values were adjusted for treatment, pooled Investigator, and baseline. | Baseline (Week 24), Week 49 | 
| Change From Baseline in the Behavior Rating Inventory of Executive Function-Adult Version:Informant Report (BRIEF-A:Informant) Global Executive Composite (GEC) Index Score From Week 24 to Week 49 | BRIEF-A:Informant is a 75-item third-party observer's view of the participants' executive functions/self-regulation in their everyday environment. Items include: Inhibit, Shift, Emotional Control, Self Monitor, Initiate, Working Memory, Plan/Organize, Task Monitor, and Organization of Materials. Behavior is rated on a 3-point scale: 1 (behavior is never observed) to 3 (behavior is often observed). GEC Index Score is a subscore of the 75-item BRIEF-A score, reflects overall functioning and was calculated based on 70 items. Total scores range: 70-210. Lower scores = less perceived impairment. Least Squares (LS) Mean values were adjusted for treatment, pooled Investigator, and baseline. | Baseline (Week 24), Week 49 | 
| Change From Baseline in European Quality of Life (EuroQoL) Questionnaire-5 Dimensions (EQ-5D) Index Score From Week 24 to Week 49 | The EQ-5D is a Self-reported, 5-item scale to assess health utility (mobility, self-care, usual activities, pain and discomfort, and depression/anxiety). Scoring is on a 3-point scale (1=no health problems, 2=some or moderate problems, 3=major health problems). A preference value Index score is calculated using societal preference developed from a general population-based valuation studies. Index score ranges: United Kingdom (UK): -0.59 to 1.0, United States (US): -0.11 to 1.0, where 1 represents best possible health and 0 represents dead, with <0 interpreted as a health state worse than dead. A Quality of Life Health State Score visual analog scale (VAS) was assessed, scores range from 0 to 100. Higher scores indicate better health state. Least Square (LS) Mean values were adjusted for treatment, pooled Investigator, baseline. | Baseline (Week 24), Week 49 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ADHD, Adult, long term, maintenance of response, Attention Deficit Hyperactivity Disorder