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| Sponsor: | University of Pittsburgh |
|---|---|
| Collaborator: |
National Institute of Mental Health (NIMH) |
| Information provided by: | University of Pittsburgh |
| ClinicalTrials.gov Identifier: | NCT00518947 |
Purpose
Verapamil has been found in some but not all studies to have antimanic activity. Therefore, we investigated the use of verapamil, alone or as an adjunctive treatment, in manic patients who did not respond to an initial adequate trial of lithium. Each study phase lasted three weeks. Subjects were treated openly with lithium in Phase 1 (n=45). Those who failed to respond were randomly assigned to double-blind treatment in Phase 2 with either verapamil (n=10) or continued lithium (n=8). Phase 2 responders were continued on the same medication in Phase 3. Phase 2 nonresponders (n=10) were assigned to combined verapamil/lithium in Phase 3.
| Condition | Intervention | Phase |
|---|---|---|
|
Mania |
Drug: Lithium Drug: verapamil Drug: verapamil plus lithium |
Phase III |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Factorial Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) Primary Purpose: Treatment |
| Official Title: | Pharmacotherapy of Treatment-Resistant Mania |
| Enrollment: | 45 |
| Study Start Date: | November 1994 |
| Study Completion Date: | June 1999 |
| Arms | Assigned Interventions |
|---|---|
|
Active Comparator: 1
Continued-Lithium
|
Drug: Lithium
Treatment with lithium carbonate was initiated at a dose of 900-1200 mg/day. Serum lithium levels were monitored twice weekly, and the dose was adjusted to attain target levels between 0.8 and 1.0 mmol/L by the end of week one, with subsequent levels as high as 1.4 mmol/L permitted if needed.
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Experimental: 2.
Verapamil
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Drug: verapamil
The initial dose of verapamil was 80 mg b.i.d., and this was raised by 80 mg/day every three days to a maximum of 480 mg/day, unless intolerable side effects were produced at a lower level, in which case the dose was maintained at the highest tolerated amount.
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Experimental: 3.
Verapamil plus Lithium
|
Drug: verapamil plus lithium |
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Patients were excluded if they had:
Contacts and Locations| United States, Pennsylvania | |
| University of Pittsburgh | |
| Pittsburgh, Pennsylvania, United States, 15213 | |
| Principal Investigator: | Alan G. Mallinger, M.D. | University of Pittsburgh |
More Information
| ClinicalTrials.gov Identifier: | NCT00518947 History of Changes |
| Other Study ID Numbers: | 1R01 MH50634 |
| Study First Received: | August 8, 2007 |
| Last Updated: | February 24, 2011 |
| Health Authority: | United States: Institutional Review Board |
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Bipolar Disorder Mania Antimanic Verapamil Lithium |
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Bipolar Disorder Affective Disorders, Psychotic Mood Disorders Mental Disorders Verapamil Diltiazem Lithium Lithium Carbonate Vasodilator Agents Cardiovascular Agents Therapeutic Uses Pharmacologic Actions Anti-Arrhythmia Agents |
Calcium Channel Blockers Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Antihypertensive Agents Antipsychotic Agents Tranquilizing Agents Central Nervous System Depressants Physiological Effects of Drugs Central Nervous System Agents Psychotropic Drugs Antimanic Agents Antidepressive Agents Enzyme Inhibitors |