search
Back to results

Carisbamate as a Potential Treatment for Alcohol Dependence

Primary Purpose

Alcohol Dependence, Alcohol Abuse, Substance Abuse

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Carisbamate
Placebo
Sponsored by
Baylor College of Medicine
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional other trial for Alcohol Dependence

Eligibility Criteria

18 Years - 55 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Be an English-speaking volunteer who is not seeking treatment at the time of the study
  2. Be between 18-55 years of age
  3. Meet DSM-IV TR criteria for alcohol abuse; participants may or may not meet criteria for nicotine dependence. Nicotine dependence is allowed but not required because most alcohol users smoke cigarettes.
  4. Have a self-reported history of using alcohol.
  5. Have vital signs as follows: resting pulse must be < 90 bpm and the blood pressure must be < 150 mmHg systolic and < 90 mmHg diastolic.
  6. Have hematology and chemistry laboratory tests that are within normal (+/- 10%) limits with the following exceptions:

    • liver function tests (total bilirubin, ALT, AST, and alkaline phosphatase) < 3 x the upper limit of normal, and b) kidney function tests (creatinine and BUN) within normal limits
  7. Have a baseline EKG that demonstrates clinically normal sinus rhythm, clinically normal conduction, and no clinically significant arrhythmias
  8. Have a medical history and brief physical examination demonstrating no clinically significant contraindications for study participation, in the judgment of the admitting physician and the principal investigator.

Exclusion Criteria:

  1. Meet DSM IV TR criteria for dependence on drugs other than alcohol or nicotine.
  2. Have any history or evidence suggestive of seizure disorder or brain injury
  3. Have any previous medically adverse reaction to alcohol, including loss of consciousness, chest pain, or epileptic seizure
  4. Have neurological or psychiatric disorders, such as:

    • psychosis, bipolar illness or major depression as assessed by SCID
    • organic brain disease or dementia assessed by clinical interview
    • history of any psychiatric disorder which would require ongoing treatment or which would make study compliance difficult
    • history of suicide attempts within the past year and/or current suicidal ideation/plan
  5. Have evidence of clinically significant heart disease or hypertension, as determined by the PI
  6. Have evidence of untreated or unstable medical illness including: neuroendocrine, autoimmune, renal, hepatic, or active infectious disease
  7. Have symptomatic HIV or are taking antiretroviral medication
  8. Be pregnant or nursing. Other females must either be unable to conceive (i.e., surgically sterilized, sterile, or post-menopausal) or be using a reliable form of contraception (e.g., abstinence, birth control pills, intrauterine device, condoms, or spermicide). All females must provide negative pregnancy urine tests before study entry, upon hospital admission, and at the end of study participation
  9. Have any other illness, condition, or use of psychotropic medications, which in the opinion of the PI and/or the admitting physician would preclude safe and/or successful completion of the study.
  10. Currently seeking help for alcohol dependence.
  11. Subjects with or prone to clinically significant alcohol withdrawal.
  12. More than thirty days of abstinence from alcohol in the ninety days prior to enrollment.
  13. A history of major alcohol-related medical complications requiring hospitalization (i.e. pancreatitis).
  14. Contraindication(s) to take the study medication such as renal or hepatic impairment, nephrolithiasis, congenital metabolic disorders or history of seizures. Moderate-to-severe renal impairment defined as creatinine clearance less than 30 mL/min.
  15. Use of inhibitors/substrates for renal cationic transporters, or medications contraindicated with ethanol.
  16. A history of violence or aggression, assessed as part of the clinical interview at screening visit.

Sites / Locations

  • Michael E. DeBakey VA Medical Center

Arms of the Study

Arm 1

Arm 2

Arm Type

Placebo Comparator

Active Comparator

Arm Label

Placebo

Carisbamate

Arm Description

Participants will receive placebo from days 2- 4.

Participants will receive carisbamate 600mg qd from days 2- 4.

Outcomes

Primary Outcome Measures

Mean Biphasic Alcohol Effects Scale (BAES) Scores
The Biphasic Alcohol Effects Scale (BAES) is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. The BAES consists of 14 items that are rated on a eleven-point scale. The Sedation and Stimulation subscales are calculated by summing the following items (for the 14-point scale): Stimulation: = BAES3 + BAES4 + BAES5 + BAES11 + BAES12 + BAES13 +BAES14/ Sedation: = BAES1 + BAES2 + BAES6 + BAES7 + BAES8 + BAES9 + BAES10. Individuals are instructed to rate the extent to which drinking alcohol has produced these feelings in you at the present time from 0 (not at all) to 10 (extremely). Higher scores on the Sedative Subscale represent extreme sedation (0 not at all sedated - 70 extremely sedated). Higher scores on the Stimulant Subscale represent extreme stimulation (0 not at all stimulated - 70 extremely stimulated). Scale scores are calculated as the sum of respective stimulant and sedative effects items.
Mean Alcohol Urge Questionnaire (AUQ) Scores
The Alcohol Urge Questionnaire (AUQ) consists of eight statements about the respondent's feelings and thoughts about drinking as they are completing the questionnaire (i.e., right now). Drinking refers to various types of alcohol, including beer, wine and liquor. The respondent is asked to respond to each statement about alcohol craving via a 7-item Likert scale ranging from "0-strongly disagree" to "6- strongly agree." Item scores were averaged and the total score also ranges from 0-6.
Mean Positive and Negative Affect Schedule (PANAS) Scores
The Positive and Negative Affect Schedule (PANAS) is a self-report questionnaire that consists of two 10-item scales to measure both positive and negative affect. Each item is rated on a 5-point scale of 1 (not at all) to 5 (very much). Range between 10 and 50 points. Higher positive affect scores indicated a better outcome, while lower negative affect scores indicated a better outcome.
MEAN DRUG EFFECTS QUESTIONNAIRE (DEQ) SCORES
Self-reported subjective drug effects questionnaire evaluated whether a respondent was currently affected by doses of alcohol. Participants completed VAS at regular intervals after ingesting active alcohol (0.8g/kg; 16% by volume) or placebo (1% by volume as a mask). The questionnaire assessed the extent to which subjects experience four subjective states: "Feel Drug", "Feel High", and "Want More". The "Feel Drug", "Feel High", "Like Drug", "Dislike Drug", and "Want More" subscales are reported.Each item is rated on a 100-point scale of 1 (not at all) to 100 (extremely). 100 represents the highest score for that subjective state, and the higher the score, the worse the outcome.

Secondary Outcome Measures

Physiologic Effects of Carisbamate: Mean Systolic and Diastolic Blood Pressure
systolic and diastolic blood pressure will be monitored after consuming carisbamate and alcohol
Physiologic Effects of Carisbamate: Mean Heart Rate
pulse will be monitored after consuming carisbamate and alcohol

Full Information

First Posted
September 7, 2013
Last Updated
February 10, 2021
Sponsor
Baylor College of Medicine
search

1. Study Identification

Unique Protocol Identification Number
NCT02435381
Brief Title
Carisbamate as a Potential Treatment for Alcohol Dependence
Official Title
Carisbamate as a Potential Treatment for Alcohol Dependence
Study Type
Interventional

2. Study Status

Record Verification Date
February 2021
Overall Recruitment Status
Completed
Study Start Date
February 2013 (undefined)
Primary Completion Date
September 30, 2013 (Actual)
Study Completion Date
September 30, 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Baylor College of Medicine

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study is to determine the effects of treatment with carisbamate compared to treatment with placebo, on alcohol-induced stimulant and subjective effects in non-treatment seeking alcohol-dependent human volunteers.
Detailed Description
This within-subjects placebo-controlled experimental protocol will assess the effects of carisbamate (600mg qd) on the positive subjective effects of alcohol in non-treatment-seeking alcohol-dependent volunteers. Participants will receive study drug (carisbamate or placebo) from days 2- 4. On day 4, study drug will be followed by alcohol (0.8g/kg; 16% by volume) and a placebo beverage (1% by volume as a mask), both separated by 2 hours. Physiologic, subjective effects and BAL will be obtained after the alcohol challenges. Participants will be discharged on day 4 and asked to return a week later to repeat the study under the alternate study drug condition (active carisbamate vs. placebo).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Alcohol Dependence, Alcohol Abuse, Substance Abuse

7. Study Design

Primary Purpose
Other
Study Phase
Phase 1, Phase 2
Interventional Study Model
Crossover Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
11 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Participants will receive placebo from days 2- 4.
Arm Title
Carisbamate
Arm Type
Active Comparator
Arm Description
Participants will receive carisbamate 600mg qd from days 2- 4.
Intervention Type
Drug
Intervention Name(s)
Carisbamate
Other Intervention Name(s)
YKP 509
Intervention Description
600mg Orally on days 2-4
Intervention Type
Drug
Intervention Name(s)
Placebo
Other Intervention Name(s)
Sugar Pill
Intervention Description
Placebo treatment only
Primary Outcome Measure Information:
Title
Mean Biphasic Alcohol Effects Scale (BAES) Scores
Description
The Biphasic Alcohol Effects Scale (BAES) is a self-report, unipolar adjective rating scale that is designed to measure both stimulant and sedative effects of alcohol. The BAES consists of 14 items that are rated on a eleven-point scale. The Sedation and Stimulation subscales are calculated by summing the following items (for the 14-point scale): Stimulation: = BAES3 + BAES4 + BAES5 + BAES11 + BAES12 + BAES13 +BAES14/ Sedation: = BAES1 + BAES2 + BAES6 + BAES7 + BAES8 + BAES9 + BAES10. Individuals are instructed to rate the extent to which drinking alcohol has produced these feelings in you at the present time from 0 (not at all) to 10 (extremely). Higher scores on the Sedative Subscale represent extreme sedation (0 not at all sedated - 70 extremely sedated). Higher scores on the Stimulant Subscale represent extreme stimulation (0 not at all stimulated - 70 extremely stimulated). Scale scores are calculated as the sum of respective stimulant and sedative effects items.
Time Frame
15, 30 and 60 minutes after consumption of placebo (1% alcohol by volume) and alcohol (0.8g/kg; 16% by volume) beverages, stimulant ratings
Title
Mean Alcohol Urge Questionnaire (AUQ) Scores
Description
The Alcohol Urge Questionnaire (AUQ) consists of eight statements about the respondent's feelings and thoughts about drinking as they are completing the questionnaire (i.e., right now). Drinking refers to various types of alcohol, including beer, wine and liquor. The respondent is asked to respond to each statement about alcohol craving via a 7-item Likert scale ranging from "0-strongly disagree" to "6- strongly agree." Item scores were averaged and the total score also ranges from 0-6.
Time Frame
15, 30 and 60 minutes after consumption of placebo (1% alcohol by volume) and alcohol (0.8g/kg; 16% by volume) beverages.
Title
Mean Positive and Negative Affect Schedule (PANAS) Scores
Description
The Positive and Negative Affect Schedule (PANAS) is a self-report questionnaire that consists of two 10-item scales to measure both positive and negative affect. Each item is rated on a 5-point scale of 1 (not at all) to 5 (very much). Range between 10 and 50 points. Higher positive affect scores indicated a better outcome, while lower negative affect scores indicated a better outcome.
Time Frame
15, 30 and 60 minutes after consumption of placebo (1% alcohol by volume) and alcohol (0.8g/kg; 16% by volume) beverages.
Title
MEAN DRUG EFFECTS QUESTIONNAIRE (DEQ) SCORES
Description
Self-reported subjective drug effects questionnaire evaluated whether a respondent was currently affected by doses of alcohol. Participants completed VAS at regular intervals after ingesting active alcohol (0.8g/kg; 16% by volume) or placebo (1% by volume as a mask). The questionnaire assessed the extent to which subjects experience four subjective states: "Feel Drug", "Feel High", and "Want More". The "Feel Drug", "Feel High", "Like Drug", "Dislike Drug", and "Want More" subscales are reported.Each item is rated on a 100-point scale of 1 (not at all) to 100 (extremely). 100 represents the highest score for that subjective state, and the higher the score, the worse the outcome.
Time Frame
15, 30 and 60 minutes after consumption of placebo (1% alcohol by volume) and alcohol (0.8g/kg; 16% by volume) beverages.
Secondary Outcome Measure Information:
Title
Physiologic Effects of Carisbamate: Mean Systolic and Diastolic Blood Pressure
Description
systolic and diastolic blood pressure will be monitored after consuming carisbamate and alcohol
Time Frame
15, 30 and 60 minutes after alcohol (0.8 mg/kg;16% by volume) consumption
Title
Physiologic Effects of Carisbamate: Mean Heart Rate
Description
pulse will be monitored after consuming carisbamate and alcohol
Time Frame
15, 30 and 60 minutes after alcohol (0.8 mg/kg;16% by volume) consumption

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
55 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Be an English-speaking volunteer who is not seeking treatment at the time of the study Be between 18-55 years of age Meet DSM-IV TR criteria for alcohol abuse; participants may or may not meet criteria for nicotine dependence. Nicotine dependence is allowed but not required because most alcohol users smoke cigarettes. Have a self-reported history of using alcohol. Have vital signs as follows: resting pulse must be < 90 bpm and the blood pressure must be < 150 mmHg systolic and < 90 mmHg diastolic. Have hematology and chemistry laboratory tests that are within normal (+/- 10%) limits with the following exceptions: liver function tests (total bilirubin, ALT, AST, and alkaline phosphatase) < 3 x the upper limit of normal, and b) kidney function tests (creatinine and BUN) within normal limits Have a baseline EKG that demonstrates clinically normal sinus rhythm, clinically normal conduction, and no clinically significant arrhythmias Have a medical history and brief physical examination demonstrating no clinically significant contraindications for study participation, in the judgment of the admitting physician and the principal investigator. Exclusion Criteria: Meet DSM IV TR criteria for dependence on drugs other than alcohol or nicotine. Have any history or evidence suggestive of seizure disorder or brain injury Have any previous medically adverse reaction to alcohol, including loss of consciousness, chest pain, or epileptic seizure Have neurological or psychiatric disorders, such as: psychosis, bipolar illness or major depression as assessed by SCID organic brain disease or dementia assessed by clinical interview history of any psychiatric disorder which would require ongoing treatment or which would make study compliance difficult history of suicide attempts within the past year and/or current suicidal ideation/plan Have evidence of clinically significant heart disease or hypertension, as determined by the PI Have evidence of untreated or unstable medical illness including: neuroendocrine, autoimmune, renal, hepatic, or active infectious disease Have symptomatic HIV or are taking antiretroviral medication Be pregnant or nursing. Other females must either be unable to conceive (i.e., surgically sterilized, sterile, or post-menopausal) or be using a reliable form of contraception (e.g., abstinence, birth control pills, intrauterine device, condoms, or spermicide). All females must provide negative pregnancy urine tests before study entry, upon hospital admission, and at the end of study participation Have any other illness, condition, or use of psychotropic medications, which in the opinion of the PI and/or the admitting physician would preclude safe and/or successful completion of the study. Currently seeking help for alcohol dependence. Subjects with or prone to clinically significant alcohol withdrawal. More than thirty days of abstinence from alcohol in the ninety days prior to enrollment. A history of major alcohol-related medical complications requiring hospitalization (i.e. pancreatitis). Contraindication(s) to take the study medication such as renal or hepatic impairment, nephrolithiasis, congenital metabolic disorders or history of seizures. Moderate-to-severe renal impairment defined as creatinine clearance less than 30 mL/min. Use of inhibitors/substrates for renal cationic transporters, or medications contraindicated with ethanol. A history of violence or aggression, assessed as part of the clinical interview at screening visit.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Thomas F Newton, M.D
Organizational Affiliation
Baylor College of Medicine
Official's Role
Principal Investigator
Facility Information:
Facility Name
Michael E. DeBakey VA Medical Center
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States

12. IPD Sharing Statement

Learn more about this trial

Carisbamate as a Potential Treatment for Alcohol Dependence

We'll reach out to this number within 24 hrs