Does Sleep Quality Change After Switch From Wellbutrin SR to Wellbutrin XL in Patients With Major Depressive Disorder?
Wellbutrin (bupropion) is an effective antidepressant (Thase, M 2005). It exists in instant release (IR), sustained release (SR) and extended release (XL) forms. The IR formulation was never approved for use in Canada. The XL formulation allows for once daily dosing.
Wellbutrin is both a norepinephrine and dopamine reuptake inhibitor, and as such increases the synaptic concentration of both neurotransmitters. This adds to its positive effects on cognition, apathy, tiredness and executive functioning. The increased activation may be also responsible for some of its side effects such as initial insomnia and reduced sleep efficiency, especially when taken at night.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Does Sleep Quality Change After Switch From Wellbutrin SR to Wellbutrin XL in Patients With Major Depressive Disorder?|
- This study is looking at the effect of Wellbutrin SR versus Wellbutrin XL on sleep quality [ Time Frame: pre, 3-5days, 3-4weeks after wellbutrinXL ] [ Designated as safety issue: No ]
|Study Start Date:||January 2007|
|Study Completion Date:||January 2010|
|Primary Completion Date:||January 2009 (Final data collection date for primary outcome measure)|
Wellbutrin SR switched to Wellbutrin XL
Drug: Wellbutrin XL
Wellbutrin XL 300mg daily
Other Name: Bupropion
Please refer to this study by its ClinicalTrials.gov identifier: NCT00616915
|Providence Care Mental Health Services|
|Kingston, Ontario, Canada, L7L 4X3|
|Principal Investigator:||Roumen V. Milev, MD||Queen's University|