Publications by authors named "Gwendolyn E Niebler"

Objective: To evaluate the short-term impact of lisdexamfetamine dimesylate on cardiovascular parameters in adults with attention-deficit/hyperactivity disorder (ADHD).

Method: Medically healthy adults (18-55 years of age) with DSM-IV-TR-defined ADHD were randomly assigned to placebo or 30, 50, or 70 mg/d of lisdexamfetamine dimesylate for 4 weeks between May and November 2006. Electrocardiograms, systolic and diastolic blood pressure, and pulse were assessed pretreatment and weekly thereafter.

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Objective: This study assessed the efficacy and safety of armodafinil, the longer half-life enantiomer of modafinil, for the treatment of excessive sleepiness in patients with narcolepsy.

Research Design And Methods: This was a multicenter double-blind study with 196 patients (aged 18-65 years) randomized to receive armodafinil 150 mg (n = 65), armodafinil 250 mg (n = 67), or placebo (n = 64) once daily for 12 weeks.

Main Outcome Measures: Efficacy was assessed using the Maintenance of Wakefulness Test (MWT) (six 20-min subtests across the day), the Clinical Global Impression of Change (CGI-C), subjective measures of sleepiness (Epworth Sleepiness Scale), patient diaries, and evaluations of cognitive performance (Cognitive Drug Research) and fatigue (Brief Fatigue Inventory).

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Objective: To assess the pharmacodynamics of armodafinil compared with modafinil and placebo on measures of alertness in healthy volunteers undergoing sleep loss.

Research Design And Methods: In a double-blind, active- and placebo-controlled, parallel-group study, 107 healthy male volunteers (aged 18-40 years) were randomized to receive a single oral dose of armodafinil (100, 150, 200, or 300 mg), modafinil (200 mg), or placebo administered at 19:25 h.

Main Outcome Measures: The primary outcome was the Maintenance of Wakefulness Test (MWT), administered every 2 hours from 22:00-08:00 h.

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Background: Patients with shift-work sleep disorder chronically have excessive sleepiness during night work and insomnia when attempting to sleep during the day. We evaluated the use of modafinil for treating sleepiness in patients with this disorder.

Methods: In a three-month, double-blind trial, we randomly assigned 209 patients with shift-work sleep disorder to receive either 200 mg of modafinil or placebo before the start of each shift.

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