Conditions: Bipolar Disorder Panic Disorder Generalized Anxiety Disorder
Keywords: Bipolar disorder Anxiety Panic GAD Generalized Anxiety Disorder
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 49
Healthy volunteers: yes

Brief summary:
The specific aim of this study is to evaluate the efficacy, tolerability, and safety of ziprasidone monotherapy in comparison to placebo in the treatment of ambulatory bipolar disorder with co-morbid lifetime panic disorder or generalized anxiety disorder and current at least moderately severe anxiety.

Detailed description:
This is a randomized, double-blind, placebo controlled, parallel-group, 8-week trial of ziprasidone compared to placebo in outpatient subjects with a lifetime bipolar I, II, or NOS disorder, a lifetime panic or generalized anxiety disorder, and current diagnosis at least moderately severe anxiety symptoms. Approximately 50 subjects will be randomized. Subjects will be randomized to ziprasidone or placebo in a 1:1 ratio. No concomitant psychotropic medication will be allowed throughout the study except for prn lorazepam during the first two weeks for the management of affective and anxiety symptoms, prn zolpidem and zaleplon for the management of insomnia and benztropine for the management of EPS. Throughout the study, psychiatric scales will be used to assess psychiatric symptoms and the presence of treatment-emergent adverse events will be monitored and recorded.

Arms:
arm 1: Ziprasidone in the form of 40 and/or 80 mg capsules. Dose range: 40 to 160 mg/day. arm 2: Administered in capsules identical to the ziprasidone capsules.

Interventions: intervention 1: Ziprasidone intervention 2: Placebo
Intervention descriptions: intervention 1: The minimum dose during study participation will be 40 mg/day, and the maximum dose allowed will be 160 mg/day. intervention 2: Inactive control

Protocol document: