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Effect of Endotoxin on Alcohol Consumption

Primary Purpose

Alcohol Use Disorder

Status
Recruiting
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Endotoxin
Sponsored by
Yale University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional other trial for Alcohol Use Disorder

Eligibility Criteria

21 Years - 65 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Age 21-65;
  2. Able to read and write English;
  3. Meets DSM-5 criteria for current (past 6 months) alcohol use disorder;
  4. Drinking criteria: Males - Drinks > 14 drinks per week and exceeds 4 drinks per day at least twice per week; Females -Drinks > 7 drinks per week and exceeds 3 drinks per day at least twice per week.
  5. Must meet drinking criteria during a consecutive 30-day period within the 90 days prior to baseline;
  6. Laboratory sessions will be scheduled such that subjects will not have major responsibilities on the following day which might limit drinking during the self-administration session (e.g., job interview, exam).

Exclusion Criteria:

  1. Participants with any significant current medical conditions (neurological, cardiovascular [including hypertension or hypotension: sitting BP >160/100 or <90/60mmHg at baseline screening], endocrine, thyroid, renal, liver), seizures, delirium or hallucinations, or other unstable medical conditions including HIV;
  2. Current DSM-5 substance use disorders, other than alcohol or nicotine;
  3. A positive test result at intake appointment on urine drug screens conducted for illicit drugs, excluding cannabis;
  4. Past 30 day use of psychoactive drugs including anxiolytics and antidepressants;
  5. Women who are pregnant or nursing, or fail to use one of the following methods of birth control unless she or partner is surgically sterile or she is postmenopausal (hormone contraceptives [oral, implant, injection, patch, or ring], contraceptive sponge, double barrier [diaphragm or condom plus spermicide], or IUD);
  6. Suicidal, homicidal or evidence of current (past 6-month) severe mental illness such as schizophrenia, bipolar disorder or major depression, or anxiety disorders;
  7. Subjects treatment-seeking or who are currently in treatment for alcohol use;
  8. Subjects with medical conditions contraindicating alcohol use (e.g., liver enzymes ≥3× normal);
  9. Subjects likely to exhibit clinically significant alcohol withdrawal during the study. We will exclude subjects who a) have a history of perceptual distortions, seizures, delirium, or hallucinations upon withdrawal, or b) have a score of > 8 on the Clinical Institute Withdrawal Assessment scale at intake appointments;
  10. Participation within the past 8 weeks in other studies that involve additive blood sampling and/or interventional measures that would be considered excessive in combination with the current application.

Sites / Locations

  • Yale School of MedicineRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Endotoxin

Placebo

Arm Description

Endotoxin (0.4ng/kg i.v.) will be administered one time during the laboratory session.

Administered one time during the laboratory session.

Outcomes

Primary Outcome Measures

Alcohol consumption
Mean mls of alcohol consumed for endotoxin and placebo groups during 120 minute alcohol self-administration session.

Secondary Outcome Measures

Full Information

First Posted
August 21, 2020
Last Updated
February 6, 2023
Sponsor
Yale University
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
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1. Study Identification

Unique Protocol Identification Number
NCT04527185
Brief Title
Effect of Endotoxin on Alcohol Consumption
Official Title
Does Endotoxin Administration Increase Alcohol Consumption in Individuals With AUD?
Study Type
Interventional

2. Study Status

Record Verification Date
February 2023
Overall Recruitment Status
Recruiting
Study Start Date
January 27, 2022 (Actual)
Primary Completion Date
April 30, 2024 (Anticipated)
Study Completion Date
April 30, 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Yale University
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
For this protocol, the investigators plan to collect pilot data to examine the effect of endotoxin on drinking behavior in the human laboratory.
Detailed Description
This pilot study is a double-blind, placebo-controlled design, which will compare endotoxin (0.4ng/kg i.v.) to placebo (0.0ng/kg) in non-treatment seeking adults meeting criteria for DSM-5 alcohol use disorders (n=32 total, n=16 per group). Eligibility screening consists of an intake session and a physical exam. Participants meeting eligibility criteria will be randomized to receive a single dose of 0.4ng/kg i.v. endotoxin or placebo during a single laboratory session to evaluate ad-libitum alcohol consumption. During the laboratory session, endotoxin (or placebo) administration will precede a 2-hour alcohol self-administration period. Participants will be scheduled for a follow-up appointment to evaluate drinking behavior. Adverse events are evaluated during the laboratory session and follow-up, and will be tabulated.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Alcohol Use Disorder

7. Study Design

Primary Purpose
Other
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
32 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Endotoxin
Arm Type
Experimental
Arm Description
Endotoxin (0.4ng/kg i.v.) will be administered one time during the laboratory session.
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Administered one time during the laboratory session.
Intervention Type
Drug
Intervention Name(s)
Endotoxin
Other Intervention Name(s)
Lipopolysaccharide
Intervention Description
Endotoxin 0.4ng/kg i.v.
Primary Outcome Measure Information:
Title
Alcohol consumption
Description
Mean mls of alcohol consumed for endotoxin and placebo groups during 120 minute alcohol self-administration session.
Time Frame
120 minutes

10. Eligibility

Sex
All
Minimum Age & Unit of Time
21 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Age 21-65; Able to read and write English; Meets DSM-5 criteria for current (past 6 months) alcohol use disorder; Drinking criteria: Males - Drinks > 14 drinks per week and exceeds 4 drinks per day at least twice per week; Females -Drinks > 7 drinks per week and exceeds 3 drinks per day at least twice per week. Must meet drinking criteria during a consecutive 30-day period within the 90 days prior to baseline; Laboratory sessions will be scheduled such that subjects will not have major responsibilities on the following day which might limit drinking during the self-administration session (e.g., job interview, exam). Exclusion Criteria: Participants with any significant current medical conditions (neurological, cardiovascular [including hypertension or hypotension: sitting BP >160/100 or <90/60mmHg at baseline screening], endocrine, thyroid, renal, liver), seizures, delirium or hallucinations, or other unstable medical conditions including HIV; Current DSM-5 substance use disorders, other than alcohol or nicotine; A positive test result at intake appointment on urine drug screens conducted for illicit drugs, excluding cannabis; Past 30 day use of psychoactive drugs including anxiolytics and antidepressants; Women who are pregnant or nursing, or fail to use one of the following methods of birth control unless she or partner is surgically sterile or she is postmenopausal (hormone contraceptives [oral, implant, injection, patch, or ring], contraceptive sponge, double barrier [diaphragm or condom plus spermicide], or IUD); Suicidal, homicidal or evidence of current (past 6-month) severe mental illness such as schizophrenia, bipolar disorder or major depression, or anxiety disorders; Subjects treatment-seeking or who are currently in treatment for alcohol use; Subjects with medical conditions contraindicating alcohol use (e.g., liver enzymes ≥3× normal); Subjects likely to exhibit clinically significant alcohol withdrawal during the study. We will exclude subjects who a) have a history of perceptual distortions, seizures, delirium, or hallucinations upon withdrawal, or b) have a score of > 8 on the Clinical Institute Withdrawal Assessment scale at intake appointments; Participation within the past 8 weeks in other studies that involve additive blood sampling and/or interventional measures that would be considered excessive in combination with the current application.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Terril Verplaetse, PhD
Phone
203-737-6496
Email
terril.verplaetse@yale.edu
First Name & Middle Initial & Last Name or Official Title & Degree
Meaghan Lavery
Phone
203-737-2783
Email
meaghan.lavery@yale.edu
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Terril Verplaetse, PhD
Organizational Affiliation
Yale University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Yale School of Medicine
City
New Haven
State/Province
Connecticut
ZIP/Postal Code
06519
Country
United States
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Terril L Verplaetse, PhD

12. IPD Sharing Statement

Plan to Share IPD
No

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Effect of Endotoxin on Alcohol Consumption

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