Varenicline in Bipolar Depressed Patients (Varenicline)
|ClinicalTrials.gov Identifier: NCT00813800|
Recruitment Status : Completed
First Posted : December 23, 2008
Results First Posted : January 30, 2012
Last Update Posted : January 30, 2012
|Condition or disease||Intervention/treatment||Phase|
|Smoking Bipolar Disorder Depression||Drug: Varenicline||Not Applicable|
Varenicline, a nicotinic acetylcholine receptor partial agonist, has been shown in two placebo-controlled trials to be efficacious for smoking cessation. Given the high prevalence of nicotine dependence in bipolar disorder and the high prevalence of sub-syndromal and syndromal depressive symptoms in bipolar disorder, this 12-week adjunctive varenicline open label trial will be conducted to assess the feasibility, acceptability, and safety of varenicline in bipolar depressed smokers. All subjects will receive individual behavioral counseling.
Primary hypothesis: the abstinence rate for bipolar depressed patients will be 50%. Secondary hypothesis: At final visit, bipolar depressed patients who have achieved remission, defined as a Montgomery Asberg Depression Rating Scale (MADRS) <8, will have a higher rate of tobacco abstinence than depressed patients who did not achieve remission (MADRS >/= 8).
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||11 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Varenicline for Smoking Cessation in Bipolar Depressed Patients: An Open-Label 12-week Feasibility Trial|
|Study Start Date :||January 2009|
|Actual Primary Completion Date :||January 2011|
|Actual Study Completion Date :||February 2011|
Open-label; subjects will receive a behavioral intervention in addition to Varenicline.
Varenicline (Chantix®, Pfizer) is an oral medication with a recommended dosage of 0.5 mg once daily for 3 days, increasing to 0.5 mg twice daily for days 4-7, and then to the maintenance dose of 1 mg twice daily for the 12 weeks of treatment.
Other Name: Chantix
- Carbon Monoxide Breath Level at 12 Weeks [ Time Frame: 12 weeks ]Measured by expired breath in parts per million (ppm)
- Montgomery-Asberg Depression Rating Scale (MADRS) at 12 Weeks [ Time Frame: 12 weeks ]MADRS is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes in patients with mood disorders. Each item on the MADRS is scaled 0 through 6. Lowest score = 0, would indicate no depressive symptoms. Highest score = 60, indicating extreme depression. MADRS score > 20 is syndromal depression. Montgomery SA, Asberg M. A new depression scale designed to be sensitive to change. Br J Psychiatry 1979; 134:382-389.
- Young Mania Rating Scale (YMRS) at 12 Weeks [ Time Frame: 12 weeks ]YMRS is an eleven-item, multiple choice diagnostic questionnaire which psychiatrists use to measure the severity of manic episodes in patients already diagnosed with mania. Lowest score = 0, normal subject; Highest score = 60, highly manic subject. For this scale the following scores are associated with these grades of severity: mania (YMRS = 20), hypomania (YMRS = 12), under 5 is classified as non-manic. Young RC, Biggs JT, Ziegler Ve, Meyer DA. A rating scale for mania: reliability, validity and sensitivity. BR J Psychiatry 1978; 133:429-435.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00813800
|United States, Minnesota|
|Rochester, Minnesota, United States, 55905|
|Principal Investigator:||Mark A. Frye, M.D.||Mayo Clinic|