At a glance
ClinicalIndex Comparison RecordPhase 4Completed· 268 enrolled
Drug / intervention
Venlafaxine XR +1 moredrug
Likely dose
Venlafaxine XR 75–225 mg once dailyAI-extracted
Key inclusion· 5
- ✓Generalized Anxiety Disorder diagnosis confirmed by structured interview
- ✓Hamilton Anxiety Scale score ≥18
- ✓Clinical Global Impressions Severity Scale score ≥4
- ✓Hamilton Depression Scale score ≤18
Key exclusion· 7
- ✕Hypersensitivity or allergy to venlafaxine XR
- ✕History of seizures
- ✕Major depressive episode in prior 6 months
- ✕History of psychotic illness, bipolar disorder, or dementia
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Short-term Versus Long-term Treatment in Generalized Anxiety Disorder
In Brief
A Phase 4 clinical trial evaluating Venlafaxine XR and Placebo for Anxiety Disorders. Completed, enrolled 268 participants across 1 site.
Detailed Summary
This study will assess the effectiveness of venlafaxine XR, randomized to either venlafaxine XR or placebo in preventing the relapse of generalized anxiety disorder after 6 months of treatment versus 12 months of treatment.
Study Details
Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsAnxiety Disorders
CountriesUnited States
CollaboratorsNational Institute of Mental Health (NIMH)
Timeline
Phase 4CompletedFinished
200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
Enrollment StartJan 2004
First PostedSep 2005
Primary CompletionSep 2009
TodayJul 2026
First PostedSep 16, 2005
Enrollment StartJan 1, 2004
Primary CompletionSep 1, 2009
TodayJul 2, 2026
Enrollment to primary: 5.7 yearsPosted 20.8 years ago
Interventions
Venlafaxine XRdrug
Six month intervention of Venlafaxine XR treatment with flexible range of 75 to 225 mg/d
Placebodrug
six month intervention with placebo drug