Efficacy and Safety of Pregabalin vs Placebo for Generalized Anxiety Disorder (GAD) Symptoms in Subjects Discontinuing Benzodiazepine Treatment and Remaining 6 Weeks on Study Medication, Free From Benzodiazepine Use.

• Status: Completed
• Trial end date: 2008-08-01
• Target enrollment: 0
• Participant gender: All

Summary

GAD subjects maintained on a stable dose of alprazolam for at least four weeks who meet eligibility criteria will be randomized to receive pregabalin vs matching placebo while simultaneously tapering off of alprazolam over 6 weeks. Subjects return weekly for assessment of safety/tolerability of pregabalin vs placebo as well as for assessment of anxiety and benzodiazepine withdrawal symptoms. Subjects successfully able to discontinue alprazolam, will continue 6 weeks of treatment with pregabalin vs placebo (free of benzodiazepine use). The efficacy and safety of pregabalin vs placebo for anxiety symptoms and ability to discontinue/remain free of alprazolam will be compared among pregabalin and placebo treated groups. Hypothesis is that a greater proportion of subjects will be successful in discontinuing and remaining free from benzodiazepines who were treated with pregabalin as compared to subjects treated with placebo.

• Phase: Phase 3
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Pfizer; Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
• Treatments: Alprazolam; Pregabalin

Criteria

Inclusion Criteria:

• Provide written informed consent

• 18-65 years old

• male and female

• A primary lifetime diagnosis of DSM-IV-TR (2000) GAD (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition)

Exclusion Criteria:

• Pregnant or lactating women

• History of non-response to alprazolam, other benzodiazepines, gabapentin or pregabalin given for the treatment of anxiety as indicated by a (screening or baseline) Hamilton Anxiety Scale (HAM-A) score > 18