title: Atomoxetine in the treatment of adults with subthreshold and/or late onset attention-deficit hyperactivity disorder-not otherwise specified (ADHD-NOS): a prospective open-label 6-week study.
abstract: The objective of this study was to evaluate the efficacy and tolerability of atomoxetine hydrochloride (ATX) in the treatment of adults with atypical manifestations of attention-deficit hyperactivity disorder (ADHD) (not otherwise specified [NOS]). We hypothesized that treatment with ATX will be safe and efficacious for the treatment of adults with ADHD-NOS. This was a 6-week, open-label, prospective treatment study of ATX monotherapy in 45 adult patients with ADHD-NOS assessed using standardized instruments for diagnosis and a robust oral daily dose of up to 1.2 mg/kg/day or 120 mg/day. Symptom severity was assessed with the adult ADHD Investigator Symptom Report Scale (AISRS) and Clinical Global Impression Scale. Treatment with ATX at an average daily dose of 78.7 +/- 27.8 mg was associated with a statistically and clinically significant reduction in ADHD symptoms relative to baseline as assessed through the (AISRS) (-12.1 +/- 8.4; P < 0.001). Using a categorical definition of response (CGI-I much or very much improved), a majority (N = 29; 64%) of subjects were rated as improved at study endpoint. Treatment with ATX was relatively well tolerated. These open-label results suggest that ATX may be safe and effective in the treatment of adults meeting criteria for ADHD-NOS and support the need for further controlled clinical trials of ATX in this population.
authors.affiliation: Massachusetts General Hospital, Clinical and Research Program in Pediatric Psychopharmacology and Adult ADHD, and Harvard Medical School, Boston, MA, USA. csurman@partners.org
authors.forename: Craig
authors.initials: C
authors.lastname: Surman
authors.forename: Paul
authors.initials: P
authors.lastname: Hammerness
authors.forename: Carter
authors.initials: C
authors.lastname: Petty
authors.forename: Robert
authors.initials: R
authors.lastname: Doyle
authors.forename: Nicole
authors.initials: N
authors.lastname: Chu
authors.forename: Nitzah
authors.initials: N
authors.lastname: Gebhard
authors.forename: Courtney
authors.initials: C
authors.lastname: Williams
authors.forename: Joseph
authors.initials: J
authors.lastname: Biederman
mesh_terms: D018759:Adrenergic Uptake Inhibitors / Q000627:therapeutic use*; D000328:Adult; D000069445:Atomoxetine Hydrochloride; D001289:Attention Deficit Disorder with Hyperactivity / Q000188:drug therapy* / Q000503:physiopathology; D004305:Dose-Response Relationship, Drug; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011437:Propylamines / Q000627:therapeutic use*; D011446:Prospective Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D018759:Adrenergic Uptake Inhibitors; D011437:Propylamines; D000069445:Atomoxetine Hydrochloride