Prometa Protocol for Alcohol Dependence

Overview[ - collapse ][ - ]

Purpose This is a placebo controlled trial (some people receive active and some people receive inactive medication) to evaluate the effectiveness of a new protocol to treat alcohol dependence. Two main medications (plus ancillary non-placebo controlled medications) and their placebos (inactive drugs) will be utilized to treat both alcohol withdrawal, promote abstinence, and reduce drinking over approximately a six-week treatment period. All participants will meet criteria for Alcohol Dependence and be drinking heavily up until 72 hours prior to receiving the first study drug. They will be injected one drug (flumazenil or placebo) over a two day period and receive the second one (gabapentin or placebo) by mouth for 39 days. The main hypothesis is that this protocol will reduce early alcohol withdrawal symptoms and will reduce relapse to drinking and promote abstinence compared to the placebo (inactive) drug group. Secondary outcomes that will be evaluated include reduction in craving, improvement in sleep, brain activity and mood.
ConditionAlcohol Dependence
InterventionDrug: Flumazenil and Gabapentin
Drug: Placebo
PhasePhase 2/Phase 3
SponsorMedical University of South Carolina
Responsible PartyMedical University of South Carolina
ClinicalTrials.gov IdentifierNCT00262639
First ReceivedDecember 5, 2005
Last UpdatedDecember 9, 2009
Last verifiedDecember 2009

Tracking Information[ + expand ][ + ]

First Received DateDecember 5, 2005
Last Updated DateDecember 9, 2009
Start DateDecember 2005
Estimated Primary Completion DateMarch 2008
Current Primary Outcome Measures
  • Percent Subjects Completely Abstinent [Time Frame: 16 week trial] [Designated as safety issue: No]
  • Alcohol Withdrawal Scores (CIWAar) [Time Frame: Day 1 Day 2 Week 1] [Designated as safety issue: Yes]
  • Percent Days Abstinent [Time Frame: Weeks 1 to 6, 10 and 14] [Designated as safety issue: No]
Current Secondary Outcome Measures
  • Sleep [Time Frame: Weeks 1 to 6, 10 and 14] [Designated as safety issue: No]
  • Acoustic Startle Response [Time Frame: Day 1, Day 3, Week 1] [Designated as safety issue: No]
  • Regional Brain Activity on fMRI [Time Frame: Week 2] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitlePrometa Protocol for Alcohol Dependence
Official TitleA Double Blind Evaluation of Flumazenil and Gabapentin for the Treatment of Alcohol Withdrawal and Relapse Prevention
Brief Summary
This is a placebo controlled trial (some people receive active and some people receive
inactive medication) to evaluate the effectiveness of a new protocol to treat alcohol
dependence. Two main medications (plus ancillary non-placebo controlled medications) and
their placebos (inactive drugs) will be utilized to treat both alcohol withdrawal, promote
abstinence, and reduce drinking over approximately a six-week treatment period. All
participants will meet criteria for Alcohol Dependence and be drinking heavily up until 72
hours prior to receiving the first study drug. They will be injected one drug (flumazenil or
placebo) over a two day period and receive the second one (gabapentin or placebo) by mouth
for 39 days. The main hypothesis is that this protocol will reduce early alcohol withdrawal
symptoms and will reduce relapse to drinking and promote abstinence compared to the placebo
(inactive) drug group. Secondary outcomes that will be evaluated include reduction in
craving, improvement in sleep, brain activity and mood.
Detailed Description
Approximately 60 alcohol dependent individuals who are drinking heavily up until 72 hours,
or less, prior to study participation will be randomized to receive either flumazenil
(intravenously)on two successive days and gabapentin (orally)for 39 days or their matching
placebos. They also will receive hydroxyzine and vitamins. Individuals will be evaluated for
alcohol withdrawal, their response to acoustic startle, cognitive ability, craving, mood,
sleep and drinking during the first week. They will then be seen weekly for about 6 weeks
during which they take gabapentin or placebo and are provided with Combined Behavioral
Intervention Therapy (counseling) once a week, or more, as required. Over this period they
will be evaluated weekly for alcohol consumption, craving, sleep, mood, and biological
markers of alcohol consumption ( percent carbohydrate deficient transferrin and
gamma-glutamyl transferase). Blood will be obtained on week 3 and 6 for general health
(liver, blood count etc.) screening. After the end of treatment, subjects will be
followed-up at 4 weeks and again at 8 weeks after treatment to evaluate alcohol consumption,
craving, sleep, mood.

Subjects will undergo a functional magnetic resonance imaging (MRI) procedure sometime
during the second or third week of study medication to assess cue induced regional brain
activation to investigate the effect of medication on brain response to alcohol visual cues.
Study TypeInterventional
Study PhasePhase 2/Phase 3
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
ConditionAlcohol Dependence
InterventionDrug: Flumazenil and Gabapentin
2 mg flumazenil for infusion given slowly over 20 minutes given day 1 and day 2 gabapentin 300 mg increasing to 1200 mg over 4 days and continuing to day 30. Gabapentin 900 mg Day 31 to Day 33 gabapentin 600 mg Day 34 to 36 and gabapentin 300 mg Day 37 to 39.
Drug: Placebo
20 mg Saline infused slowly over 20 minutes. Placebo 1 capsule Day 1, 2 capsules Day 2, 3 capsules Day 3, 4 capsules days 4 to 30; 3 capsules Day 31 to 33; 2 capsules day 34 to 36 and 1 capsule 37 to 39.
Study Arm (s)
  • Experimental: I
    2 mg flumazenil given over 20 minutes on Day 1 and Day 2. Gabapentin 300 mg Day 1; gabapentin 600 mg Day 2; gabapentin 900 mg Day 3; gabapentin 1200 mg Day 4 to 30; gabapentin 900 mg day 31-33; gabapentin 600 mg day 34-36; gabapentin 300 mg day 37-39.
  • Placebo Comparator: II
    20 mg Saline infused slowly over 20 minutes. Placebo 1 capsule Day 1, 2 capsules Day 2, 3 capsules Day 3, 4 capsules days 4 to 30; 3 capsules Day 31 to 33; 2 capsules day 34 to 36 and 1 capsule 37 to 39.

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment60
Estimated Completion DateMarch 2008
Estimated Primary Completion DateFebruary 2008
Eligibility Criteria
Inclusion Criteria:

1. Age 18 - 70.

2. Participants will meet criteria for primary DSM IV alcohol dependence, drink on at
least 70% of days in the last 30 days prior to assessment, and drink at least 5
drinks per drinking day.

3. No more than 72 hours since last drink of alcohol. Rationale: to focus on symptoms
occurring during the early alcohol cessation period.

4. Low CIWA-Ar group: have a CIWA-Ar score less than or equal to 6; High CIWA-Ar group:
have a CIWA-Ar score greater than or equal to 7 but less than or equal to 15.

5. Able to read and understand questionnaires and informed consent.

6. Has stable housing for past 3 months.

Exclusion Criteria:

1. Currently meets DSM-IV criteria for any other psychoactive substance dependence
disorder except nicotine dependence.

2. Any psychoactive substance abuse, except marijuana and nicotine, within the last 30
days as evidenced by subject report or urine drug screen.

3. Meets DSM-IV criteria for current axis I disorders of major depression, panic
disorder, obsessive-compulsive disorder, generalized anxiety disorder, post-traumatic
stress syndrome, bipolar affective disorder, schizophrenia, or any other psychotic
disorder or organic mental disorder. The rationale for excluding them is that
symptoms from these disorders may affect dependent variables and complicate
interpretation of the data.

4. No use of benzodiazepines in excess of three times in the past two weeks by self
report and urine drug screen.

5. Subjects must not be taking zolpidem (Ambien™), zaleplon (Sonata™), or eszopiclone
(Lunesta™) in excess of three times in past two weeks.

6. No history of delirium tremens or alcohol withdrawal seizures.

7. Has current suicidal ideation with plan or homicidal ideation.

8. Need for maintenance or acute treatment with any psychoactive medication including
antiseizure medications.

9. Use of disulfiram, naltrexone, acamprosate, or anticonvulsants in last 30 days.

10. Clinically significant medical problems such as cardiovascular, renal, GI, or
endocrine problem that would impair participation or limit medication ingestion.

11. Sexually active females of child-bearing potential who are pregnant (by -beta HCG),
nursing, or who are not using a reliable form of birth control.

12. Has current charges pending for a violent crime (not including DUI related offenses).

13. Has taken gabapentin or flumazenil in the last month or has experienced adverse
effects from it at any time in the past.

14. Hepatocellular disease indicated by elevations of SGPT (ALT) and SGOT (AST) greater
than 3 times normal at screening.

15. Persons with metal implants or pacemaker since fMRI will be used.
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesUnited States

Administrative Information[ + expand ][ + ]

NCT Number NCT00262639
Other Study ID Numbers15844
Has Data Monitoring CommitteeYes
Information Provided ByMedical University of South Carolina
Study SponsorMedical University of South Carolina
CollaboratorsNot Provided
Investigators Principal Investigator: Raymond F Anton, MD Medical University of South Carolina
Verification DateDecember 2009

Locations[ + expand ][ + ]

MUSC-Center for Drug and Alcohol Programs
Charleston, South Carolina, United States, 29425