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An Add-On Trial of Quetiapine in Patients With Bipolar Disorder and Cocaine Dependence

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00223210
Recruitment Status : Completed
First Posted : September 22, 2005
Last Update Posted : August 20, 2012
Information provided by (Responsible Party):
Sherwood Brown, University of Texas Southwestern Medical Center

Brief Summary:
The purpose of this study is to determine if quetiapine add-on therapy is associated with a decrease in cocaine use and craving and a greater improvement in mood.

Condition or disease Intervention/treatment Phase
Bipolar Disorder Cocaine Dependence Drug: Quetiapine Drug: PLacebo Phase 4

Detailed Description:
One Hundred (100) outpatients with a diagnosis of bipolar I disorder and cocaine abuse/dependence, established by a structured clinical interview and confirmed by a psychiatrist, will participate. Eligible participants will be given a physical exam, including an eye exam with an ophthalmoscope to rule out serious medical illnesses and cataracts. Additionally, medical and psychiatric histories and baseline labs, including CBC and a liver panel will be obtained. Blood will be drawn for routine laboratory analyses including a complete blood count (CBC) and SMA-20 at baseline and exit. Women of childbearing potential will be given a urine pregnancy test. Baseline measures of psychiatric symptoms will be assessed with the Hamilton Rating Scale for Depression HRSD, Young Mania Rating Scale (YMRS), Inventory of Depression Symptomatology-Self-Report 30-item version (IDS-SR30), and the Psychobiology of Recovery in Depression III - Somatic Symptom Scale (PRD-III). Cocaine craving will be assessed with Cocaine Craving Questionnaire (CCQ). Drug use will be assessed by self-report, with the Addiction Severity Index (ASI) and a urine drug screen (UDS). Two UDSs are performed at baseline. Cocaine use in the past week (dollar amount spent/week and days used/week) will be assessed by patient self-report. Use of and craving for other substances (benzodiazepines, barbiturates, alcohol, opiates, phencyclidine, and cannabis) will also be assessed by self-report of dollar amount and days used in the past week, UDSs, and with 100-mm single item visual analog craving scales. Side effects will be assessed with the Abnormal Involuntary Movement Scale (AIMS), the Simpson-Angus Scale (SAS), and the Barnes Akathesia Rating Scale (BARS). Subjects will be randomized and be titrated up to 400 mg/day with additional flexible titration after that time to a maximum of 800 mg/day of Quetiapine or identical appearing placebo add-on therapy in a double- blind fashion for 12 weeks. At each weekly assessment subjects will be evaluated with the HRSD17, IDS-R30, YMRS, CCQ, and a UDS, and receive an upward titration of the study drug. The ASI will be repeated every four weeks. Further, participants will return one additional time each week for a UDS. At the end of the study an unblinded psychiatrist will provide standard open label treatment with Quetiapine until the participants can be transferred back to their usual treatment facility. Follow up and after care arrangements will be made for each participant near completion of the study.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 100 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Add-On Trial of Quetiapine in Patients With Bipolar Disorder and Cocaine Dependence
Study Start Date : November 2005
Actual Primary Completion Date : December 2007
Actual Study Completion Date : December 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Bipolar Disorder
Drug Information available for: Quetiapine

Arm Intervention/treatment
Active Comparator: Quetiapine Drug: Quetiapine
Active Quetiapine
Other Name: Active Quetiapine

Placebo Comparator: Placebo
Inactive ingredient matching the active medication in appearance
Drug: PLacebo

Primary Outcome Measures :
  1. A random regression analysis will be done with treatment group as the between-subjects factor, time as the within-subjects factor, and a group by time interaction. [ Time Frame: Study Exit ]
  2. Within-group differences between pre- and post- treatment of the study drug will be compared using Wilcoxon rank sum tests, if the sample is not normally distributed between-group differences will be compared using the Mann-Whitney test. [ Time Frame: Study Exit ]
  3. To identify response versus non-response, logistic regression, assuming linearity, will be used. [ Time Frame: Study Exit ]
  4. We will utilize the urine drug screen repeatedly and cocaine use/cravings as the primary outcome measure. [ Time Frame: Study Exit ]
  5. Changes from base line to exit for all patients finishing at-least one follow up of active Quetiapine therapy, will be calculated, using the last observation carried forward (LOCF). [ Time Frame: Study Exit ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Bipolar Disorder, type I; Cocaine Dependence with use in the past 7 days; Currently taking a mood stabilizer; Meets criteria for a hypomanic or manic episode

Exclusion Criteria:

  • Bipolar Disorder, type II, NOS; Cyclothymia; Other substance dependence; Diabetes; Initiated therapy in the past 2 weeks; History of cataracts or likely cataracts; Current active suicidal or homicidal ideation; Life threatening medical condition; Mental retardation, dementia or severe cognitive impairment; Pregnant or nursing womenon; antipsychotic within 7 days of beginning Quetiapine therapy or have initiated antidepressants or mood stabilizers or psychotherapy within the past two weeks.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00223210

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United States, Texas
The University of Texas Southwestern Medical Center at Dallas
Dallas, Texas, United States, 75390
Sponsors and Collaborators
University of Texas Southwestern Medical Center
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Principal Investigator: Sherwood Brown, MD, PhD University of Texas, Southwestern Medical Center at Dallas
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Responsible Party: Sherwood Brown, Dr. E. Sherwood Brown, PhD, University of Texas Southwestern Medical Center Identifier: NCT00223210    
Other Study ID Numbers: IRUSQUET 0397
First Posted: September 22, 2005    Key Record Dates
Last Update Posted: August 20, 2012
Last Verified: August 2012
Keywords provided by Sherwood Brown, University of Texas Southwestern Medical Center:
bipolar disorder
cocaine dependence
Additional relevant MeSH terms:
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Cocaine-Related Disorders
Bipolar Disorder
Pathologic Processes
Bipolar and Related Disorders
Mental Disorders
Substance-Related Disorders
Chemically-Induced Disorders
Quetiapine Fumarate
Antidepressive Agents
Psychotropic Drugs
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs