An Efficacy and Safety Study for JNS001 in Adults With Attention-Deficit Hyperactivity Disorder

Janssen Pharmaceutical K.K.284 enrolled

Overview

The main purpose of this study is to evaluate the efficacy of JNS001 titrated to daily doses of 18 to 72 mg in adults with attention-deficit hyperactivity disorder (ADHD) relative to placebo.

This is a randomized (the study drug is assigned by chance), double-blind (DB, neither physician nor patient knows the name of the assigned drug), multicenter, placebo-controlled, parallel group (each group of patients will be treated at the same time), dose-titration study. This study consists of a screening period, a DB phase (titration period and efficacy assessment period), and post-study phase. The study includes a 1 to 2-week screening period for wash-out of prohibited drugs, and screening for eligibility. Eligible patients will be randomly assigned to receive JNS001 or placebo in a ratio of 1:1. The study also includes a 4-week titration period. Patients will be titrated from a starting dose of 18 mg/day or matching placebo for 7 days (+/- 2 days), and continue with a weekly (+/- 2 days) increment of 18 mg until an individualized dose is achieved. Once an individualized dose is achieved, patients will remain on that dose for the rest of the titration period as far as tolerable. Doses can be tapered down only once during the titration period in the study, and their dose cannot be up-titrated again for the rest of the period. The 4-week titration period will be followed by the 4-week efficacy assessment period. The post-study phase for collection of additional safety data will be scheduled for 1 week after a patient's final study treatment. The study drug will be administered with water once daily in the morning at doses of 18 mg, 36 mg, 54 mg, 72 mg per day or the matching placebo. The study treatment period is 8 weeks (titration period of 4 weeks and efficacy assessment period of 4 weeks).

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

284

Conditions

Attention-Deficit Hyperactivity Disorder

Interventions

JNS001DRUG

Participants will receive JNS001 (18 mg, 36 mg, 54 mg or 72 mg per day) orally once daily for 8 weeks.

PlaceboDRUG

Participants will receive matching placebo orally once daily for 8 weeks.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 64 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients who meet the criteria of ADHD (predominantly inattentive type \[314.00\], predominantly hyperactive-impulsive type \[314.01\], and combined type \[314.01\]) of DSM-IV-TR both at present and in childhood, based on Conners' Adult ADHD Diagnostic Interview for DSM-IV (CAADID) at screening * DSM-IV Total ADHD Symptoms scores (18 items) of CAARS-O: SV score of = 24 as determined by investigator or co-investigator at baseline * Healthy on the basis of physical examination, medical history, vital signs, 12-lead ECG and clinical laboratory tests performed at screening * Women of childbearing potential must have a negative urine pregnancy test at screening * Patients (and their legally-acceptable representative if patients are 18 or 19 years of age) must have signed an informed consent form (ICF), indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study. Exclusion Criteria: * Presence or history of co-morbid psychiatric diagnosis per DSM-IV-TR criteria of bipolar I disorder, schizophrenia, schizoaffective disorder, or severe obsessive compulsive disorders * Presence of co-morbid psychiatric diagnosis per DSM-IV-TR criteria of pervasive developmental disorder (including autistic disorder or Asperger's disorder), suicidality, or any other diagnosis that in the judgment the investigator or co-investigator would exclude the patient from the study * Presence of motor tics, history of Tourette's disorder, or family history of Tourette's disorder * Known or suspected mental retardation

Locations (30)

Unnamed facility

Chiba, Japan

Unnamed facility

Chigasaki, Japan

Outcomes

Primary Outcomes

Change From Baseline to Endpoint in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) Total Attention Deficit-Hyperactivity Disorder (ADHD) Symptoms Scores of Conners' Adult ADHD Rating Scale - Observer Screening Version (CAARS-O: SV)

CAARS-O: SV evaluates DSM-IV-oriented inattention, impulsivity and hyperactivity as well as measures of self-concept. The CAARS-O:SV comprises 30 items to measure symptoms for ADHD in adults. Each item is scored from 0 (not at all, never) to 3 (very much, very frequently) with higher scores corresponding to worse symptoms. The total score can range from 0 (best) to 90 (worst). Lower score indicates improvement in ADHD symptoms.

Time frame: Baseline (Day 0) to Endpoint (Week 8)

Secondary Outcomes

Mean Change From Baseline to Endpoint in the Conners' Adult ADHD Rating Scale - Observer Screening Version (CAARS-O: SV) Total Score Other Than Total Attention Deficit-Hyperactivity Disorder (ADHD) Symptoms Score

CAARS-O: SV evaluates DSM-IV-oriented inattention, impulsivity and hyperactivity as well as measures of self-concept. The CAARS-O: SV comprises 30 items to measure symptoms for ADHD in adults. Each item is scored from 0 (not at all, never) to 3 (very much, very frequently) with higher scores corresponding to worse symptoms. The total score can range from 0 (best) to 90 (worst). Lower score indicates improvement in ADHD symptoms.

Time frame: Baseline (Day 0) to Endpoint (Week 8)

Change From Baseline to Endpoint in Clinical Global Impression - Severity (CGI-S) Scores

The CGI-S rating scale is used to rate the severity of a patient's psychotic condition on a 7-point scale. It is rated as follows: 1=Normal, not at all ill, 2=Borderline mentally ill, 3=Mildly ill, 4=Moderately ill, 5=Markedly ill, 6=Severely ill, and 7=Among the most extremely ill. Higher scores indicate worsening.

Time frame: Baseline (Day 0) to Endpoint (Week 8)

Clinical Global Impression of Change (CGI-C) Scores

The CGI-C is a assessment of change in global clinical status, defined as a sense of well-being and ability to function in daily activities. CGI-C scores range from 1 (very much improved) through to 7 (very much worse). Higher scores indicate worsening.

Data from ClinicalTrials.gov

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