Time-to-onset and -resolution of adverse events before/after atomoxetine discontinuation in adult patients with ADHD.
BACKGROUND
Adults with attention-deficit/hyperactivity disorder treated with atomoxetine were examined for time-to-onset and -resolution of common treatment-emergent adverse events (TEAEs) and male sexual dysfunction, and for changes in blood pressure (BP) and heart rate (HR) upon atomoxetine discontinuation.


METHODS
12-week open-label atomoxetine (40-100 mg/day) was followed by 12-week double-blind maintenance treatment (atomoxetine 80 or 100 mg/day). Responders were then randomized to atomoxetine (n = 266) or placebo (n = 258) for 25-week randomized withdrawal. Examined were (1) median time-to-onset and -resolution of TEAEs during atomoxetine treatment, and (2) within group, visitwise mean changes for sitting HR, systolic BP, and diastolic BP for the postrandomization placebo group.


RESULTS
Common adverse events (AEs) appeared early, within week 1 of atomoxetine treatment. Some AEs resolve relatively rapidly, whereas others have a more lingering course of resolution (including male sexual side effects); median resolution times were 3 - 53 days. BP and HR increases during atomoxetine treatment returned to baseline upon atomoxetine discontinuation.


CONCLUSIONS
Atomoxetine is associated with common AEs, with 3- to 53-day median resolution times.


BACKGROUND
ClincialTrials.gov - NCT00700427.
a 1 Lilly Research Laboratories, Lilly Corporate Center , Indianapolis, IN, USA.
Himanshu
H
Upadhyaya
Yoko
Y
Tanaka
Sarah
S
Lipsius
Ludmila A
LA
Kryzhanovskaya
Jeannine R
JR
Lane
Rodrigo
R
Escobar
Paula T
PT
Trzepacz
Albert J
AJ
Allen
D018759:Adrenergic Uptake Inhibitors / Q000008:administration & dosage / Q000009:adverse effects; D000328:Adult; D000069445:Atomoxetine Hydrochloride / Q000008:administration & dosage / Q000009:adverse effects; D001289:Attention Deficit Disorder with Hyperactivity / Q000188:drug therapy*; D001794:Blood Pressure / Q000187:drug effects; D002318:Cardiovascular Diseases / Q000139:chemically induced / Q000175:diagnosis / Q000503:physiopathology; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D064420:Drug-Related Side Effects and Adverse Reactions / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology; D007172:Erectile Dysfunction / Q000139:chemically induced / Q000175:diagnosis; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D013997:Time Factors; D016896:Treatment Outcome; D028761:Withholding Treatment
D018759:Adrenergic Uptake Inhibitors; D000069445:Atomoxetine Hydrochloride
Atomoxetine; adult; adverse events; attention-deficit hyperactivity disorder; cardiovascular changes; male sexual dysfunction