- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00398918
Alcohol Self Administration Laboratory
Study Overview
Detailed Description
In preclinical studies three novel anticonvulsants have been studied. The administration of tiagabine did not decrease ethanol consumption in rodents (Schmitt et al., 2002; Rimondini et al., 2002). In a study with alcohol preferring mice topiramate reduced alcohol consumption in a two bottle choice prolonged access model of drinking (Gabriel and Cunningham, 2005). In a study done at our laboratory both topiramate and zonisamide were found to have similar effects on reducing the consumption of ethanol in Wistar rat (Knapp et al., 2004). More recently we found that zonisamide administration decreased alcohol consumption in a limited access model in the C57BL/B6 mouse. These results suggest that zonisamide might be useful as a medication for the treatment of alcohol dependence.
Topiramate and zonisamide have some structural similarities with a sulfamate or methane-sulfonamide containing chain respectively attached to cyclic structure. These structural similarities may explain some of their pharmacological similarities including blockade of voltage sensitive sodium channels and low potency inhibition of carbonic anhydrase (Taverna et al., 1999; Dodgson et al., 2000; Schaf et al., 1987; Masudaet al., 1993). Both topiramate and zonisamide promote weight loss (McElroy et al., 2003; McElroy et al., 2004; Gadde et al., 2003). This effect may be a result of neuromodulation of the regulation of alcohol and food shared by these drugs.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Massachusetts
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Boston, Massachusetts, United States, 02118
- Boston University Medical Campus
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Non treatment seeking subjects ages 21-55 must indicate no treatment for alcohol dependence in the preceding 6 months.
- Male subjects must drink no more than 40 standard drinks; female subjects no more than 35 standard drinks a week as determined by the TLFB
- Subjects must be able to provide IC
- BAC must be 0.000 at the time of consent
- Female subjects of a child bearing potential must use an acceptable method of contraception which includes a barrier and spermicide, levonorgestrel implant, medroxyprogesterone, intrauterine progesterone contraceptive system or complete abstinence or surgical sterilization. Women who are using oral contraceptives must agree to an additional barrier method.
Exclusion Criteria:
- Subject meeting DSM-IV-TR criteria for axis I diagnosis that require pharmacological treatment.
- Subject meeting substance dependence criteria for any substance other than alcohol or nicotine .
- Positive urine toxicology screen for opioids, cocaine, amphetamines, PCP, THC (may repeat THC if positive).
- History of severe alcohol withdrawals.
- Any medical or psychological condition that in the opinion of the investigator will preclude safe participation in the trial. These include a history of kidney stones in the past 10 years, significant liver disease with AST and ALT more than 3 times the normal range.
- Concomitant medications that will alter the pharmacodynamic/pharmacokinetic properties of the study medication. Participant who are taking the following medications: Amprenavir; Atazanavir; Clarithromycin; Delavirdine; Diclofenac; Fosamprenavir; Imatinib; Indinavir; Isoniazid; Itraconazole; Ketoconazole; Miconazole; Nefazodone; Nelfinavir; NiCARdipine; Propofol; Quinidine; Ritonavir; Telithromycin; Phenytoin; carbamazepine and phenobarbital
- Subjects on psychoactive medications must be on a stable dose more than 3 months
- Female subjects who are pregnant or nursing.
- Subject is facing future imprisonment.
- A known allergy to zonisamide or sulfa.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Non-Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
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Placebo Comparator
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Experimental: Zonisamide
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zonisamide (100 mg)one time
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Grams Ethanol Consumed During Second Hour of the Alcohol Self-Administration Sessions
Time Frame: 1 day
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Grams Ethanol Consumed During Second Hour of the Alcohol Self-Administration Sessions for Zonisamide and Placebo Conditions
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1 day
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Score Digit Symbol Modalities Test
Time Frame: 40 minutes post alcohol ingestion
|
Difference score between zonisamide and placebo treatment conditions for the Digit Symbol Modalities Test scores obtained 40 minutes after ingestion of a priming dose of ethanol.This test involves transcribing from a key in which numbers appear below a series of symbols to boxes below symbols matched to those in the key.
This task must be completed in 90 nseconds.
This test measures visuomotor speed and aspects of attention.
Scoring is the total number of correctly transcribed numbers.
The maximum score on this test 110 points.
|
40 minutes post alcohol ingestion
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Ofra Sarid-Segal, MD, Boston University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Chemically-Induced Disorders
- Alcohol-Related Disorders
- Substance-Related Disorders
- Alcoholism
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Membrane Transport Modulators
- Anticonvulsants
- Calcium-Regulating Hormones and Agents
- Calcium Channel Blockers
- Zonisamide
Other Study ID Numbers
- H-25360
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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