A 10-Week Study Evaluating the Efficacy And Safety of PD 0332334 for the Treatment of Generalized Anxiety Disorder

A Phase 3, Randomized, Double-Blind, Placebo Controlled, Parallel Group, 10-Week Study Evaluating the Efficacy And Safety of PD 0332334 for the Treatment of Generalized Anxiety Disorder

This study will evaluate the efficacy and safety of PD 0332334 for the treatment of generalized anxiety disorder.

Inclusion Criteria:

• Diagnosis of GAD (Diagnostic and Statistical Manual-IV [DSM-IV], 300.02) as established by the clinician (psychiatrist or licensed clinical psychologist) who has interviewed the subject using all sources of data including the Mini International Neuropsychiatric Interview (MINI) for DSM-IV Axis I disorders and other clinical information. Subjects with specific phobia(s) (as defined in DSM-IV) or dysthymic disorder will be allowed in the study.
• Subjects must have a HAM-A total score ≥20 at the screening (V1) and randomization (V2) visits. Subjects must also have a Covi Anxiety Scale score of >9 and a Raskin Depression Scale score <7 at the Screening (V1) visit to ensure predominance of anxiety symptoms over depression symptoms.

Exclusion Criteria:

• Subjects with evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, pancreatic, neurologic, active infections, immunological, or allergic disease (including drug allergies).
• Any of the following current (within the past 6 months through the present) DSM-IV Axis I diagnoses: Major depressive disorder, Obsessive compulsive disorder, Panic disorder; Agoraphobia, Posttraumatic stress disorder, Anorexia, Bulimia, Caffeine-induced anxiety disorder, Alcohol or substance abuse or dependence unless in full remission for at least 6 months, Social anxiety disorder.
• Any of the following past or current DSM IV Axis I diagnoses: Schizophrenia, Psychotic disorder, Delirium, dementia, amnestic, and other clinically significant cognitive disorders, Bipolar or schizoaffective disorder, Cyclothymic disorder, Dissociative disorders.
• Antisocial or borderline personality disorder.
• Serious suicidal risk per the clinical investigator's judgment.