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RecruitingNCT06005298SEALUpdated Jul 22, 2024

Alcohol Misuse, Gut Microbial Dysbiosis and PrEP Care Continuum: Application and Efficacy of SBIRT Intervention

An interventional study of Screening, Brief Intervention, Referral to Treatment (SBIRT) in Alcohol Use Disorder, Risk Behavior, Health and Dysbiosis, sponsored by Shirish S Barve. Recruiting at 1 site in United States. Open to participants aged 18 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-07-22.

Sponsored by Shirish S Barve · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Started Aug 2023; still recruiting 3 years 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
All
01

Study summary

This randomized control trial study among Pre-exposure prophylactic users (PrEP) aims to learn and determine the efficacy of Screening, brief intervention, and referral to treatment (SBRIT) in reducing the risk of alcohol use. The main questions it aims to answer are:

  1. How alcohol use impacts the PrEP continuum and to understand how early intervention and treatment approach affects alcohol use and PrEP adherence.
  2. Investigate the effectiveness of the SBIRT intervention in preventing hazardous alcohol use and its impact on gut dysbiosis in PrEP users.
  3. To determine alterations in the gut microbiome (dysbiosis), intestinal homeostasis, systemic inflammation, and markers of liver disease associated with hazardous alcohol use among PrEP users.
Read the detailed description

The study pursues a randomized control trial (RCT) with persons who use pre-exposure prophylaxis (PrEP) to determine the efficacy of SBIRT (Screening, Brief Intervention, \& Referral to Treatment) in reducing the risk of alcohol drinking and associated pathogenic changes in the gut liver axis.

Participants in this study will attend visits at 3 months, 6 months,s and 12 months for about 60 to 90 minutes. These visits may include filling out a survey, participating in an interview, meeting with an SBIRT interventionist, and providing the aforementioned samples: Blood, urine, stool, saliva, oral and vaginal, if applicable.

This study will use a syndemic approach to expand the HIV/AIDS prevention toolkit among populations impacted by alcohol with a range of patterns of episodic and long-term use and associated behavioral and biological risks for HIV acquisition.

Specifically, the team will execute a randomized control trial among Pre-Exposure Prophylaxis (PrEP) users demonstrating heightened alcohol use to test the effectiveness of the Screening, Brief Intervention, \& Referral to Treatment (SBIRT) intervention to reduce alcohol use and examine the subsequent impact on the gut microbiome compared to individuals receiving treatment as usual and PrEP users not demonstrating elevated alcohol use. Finally, we will employ qualitative methods (in-depth interviews) and analysis to understand decision-making factors influencing PrEP adherence and alcohol use over time.

02

Conditions studied

  • Alcohol Use Disorder
  • Risk Behavior, Health
  • Dysbiosis
  • HIV Infections

Keywords

  • PrEP
  • Alcohol
  • SBIRT
03

In context

Alcoholism

1,634 studies on the registry are indexed under Alcoholism; 329 are open to participants now.

This study's planned enrollment of 120 is above the median of 88 across 1,395 interventional studies indexed under Alcoholism.

Browse Alcoholism studies →

Lead sponsor

This is the only study on the registry with Shirish S Barve as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age: 18-85 years
  • Confirmation of seronegative HIV, Hep B, and Hep C status
  • PrEP users
  • English-speaking or Spanish speaking
  • Cognitively competent to provide consent
  • Attend a participating healthcare facility

Exclusion criteria

Exclusion Criteria:

  • Inability to consent
  • Existing diagnosis of major psychiatric illness
  • Unstable medical conditions (e.g., cancer)
  • Taking immunosuppressants or Chemotherapy
  • Taking daily antibiotics or probiotics
  • Severe gastrointestinal/liver disease
  • Autoimmune disease
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • No intervention
    AUDIT <8

    Participants whose audit score is less than eight are assigned to this arm. AUDIT is a 10-item screening tool developed by the World Health Organization (WHO) to assess alcohol consumption, dependence, and experience of alcohol-related harm. AUDIT \<8 is non-hazardous.

  • Experimental
    AUDIT >8 + SBIRT

    This is an experimental arm, and AUDIT \>8 is hazardous. The goal is to make connections on the impact of the SBIRT intervention on PrEP engagement and alcohol use among the participants to create a full picture of the impact of the intervention on groups exhibiting different types of alcohol use.

    Behavioral: Screening, Brief Intervention, Referral to Treatment (SBIRT)

  • No intervention
    AUDIT > 8 NO SBIRT

    This is NOT an experimental arm, despite an AUDIT score \> 8.

Interventions

  • BehavioralScreening, Brief Intervention, Referral to Treatment (SBIRT)

    SBIRT has been defined by SAMHSA as a comprehensive, integrated, public health approach to the delivery of early intervention for individuals with risky alcohol and drug use and the timely referral to more intensive substance abuse treatment for those who have substance abuse disorders. There is consensus that a comprehensive SBIRT model includes screening, brief intervention/brief treatment, and referral to treatment. In addition there are following characteristics: * It is brief (e.g., typically about 5-10 minutes for brief interventions; about 5 to 12 sessions for brief treatments) * The screening is universal. * One or more specific behaviors related to risky alcohol and drug use are targeted. * The services occur in a public health non-substance abuse treatment setting. * It is comprehensive (comprised of screening, brief intervention/treatment, and referral to treatment). * Strong research or experiential evidence supports the model's effectiveness.

06

What researchers measure

Primary outcomes

  1. Number of Patients with Hazardous Alcohol use

    Hazardous alcohol use in the experimental group (SBIRT) will be compared to the control group (treatment as usual).

    Time frame: baseline, 3 months, 6 months, 12 months

  2. Subjects AUDIT test

    This will be measured by the Alcohol Use Disorders Identification Test (AUDIT), which is an alcohol screening instrument.

    Time frame: baseline, 3 months, 6 months, 12 months

  3. Subjects TLFB review

    TLFB / Timeline Followback, which involves asking participants to retrospectively estimate their alcohol use 7 days to 2 years prior to the interview date.

    Time frame: baseline, 3 months, 6 months, 12 months

  4. Subjects TAPS tool

    TAPS Tool / The Tobacco, Alcohol, Prescription medications, and other Substance Tool, which is a screening and assessment tool for alcohol use in the past year.

    Time frame: baseline, 3 months, 6 months, 12 months

  5. Number of Patients with Gut Microbial alpha diversity measured by the Shannon index

    Another significant primary outcomes for this aim is gut microbial alpha diversity measured by the Shannon index. Among all PrEP users, the comparison will be done between those who drink alcohol with those who do not drink alcohol in terms of the Shannon index. This will be analyzed using stool samples.

    Time frame: baseline, 3 months, 6 months, 12 months

  6. Number of Patients with Gut Microbial alpha diversity measured by abundance of bacteria

    The primary outcome for this aim- Gut microbial alpha diversity measurement using the abundance of bacteria family Lachnospiraceae. This involves transforming the relative abundance (RA) of Lachnospiraceae during logit transformation to expand the RA. This will be analyzed using stool samples.

    Time frame: baseline, 3 months, 6 months, 12 months

  7. Number of Patients reaching PrEP adherence by Tenofovir Urine Test

    PrEP adherence in the experimental group (SBIRT) will be compared to the control group (treatment as usual). This will be measured using a single-item measure using a Tenofovir Urine Test.

    Time frame: baseline, 3 months, 6 months, 12 months

Secondary outcomes

  1. Number of Patients reporting self-efficacy related to PrEP or confidence in one's ability to carry out behaviors important to PrEP adherence

    Self-efficacy related to PrEP or confidence in one's ability to carry out behaviors important to PrEP adherence in the experimental group (SBIRT) will be compared to the control group (treatment as usual). This will be measured by the PrEP self-efficacy scale.

    Time frame: baseline, 3 months, 6 months, 12 months

  2. Number of Patients reporting PrEP stigma by PrEP Stigma Likert Scale

    PrEP stigma in the experimental group (SBIRT) will be compared to the control group (treatment as usual).

    Time frame: baseline, 3 months, 6 months, 12 months

  3. Number of Patients reporting self-efficacy related to abstaining from alcohol by AASE / Alcohol Abstinence Self-Efficacy Scale.

    Self-efficacy related to abstaining from alcohol will increase in the experimental group (SBIRT) compared to the control group (treatment as usual).

    Time frame: baseline, 3 months, 6 months, 12 months

  4. Number of Patients reporting use of other illicit drugs by the ASSIST (version 2.0) / Alcohol, Smoking and Substance Involvement Screening Test

    Use of other illicit drugs will decrease in the experimental group (SBIRT) compared to the control group (treatment as usual). This will be measured by the ASSIST (version 2.0) / Alcohol, Smoking and Substance Involvement Screening Test which is a screening instrument for Cannabis, Cocaine, Prescription Stimulants, Methamphetamine, Inhalants, Sedatives, Hallucinogens, Street Opioids, Prescription Opioids, other drugs, the TLFB / Timeline Followback, which involves asking participants to retrospectively estimate their illicit drug use 7 days to 2 years prior to the interview date, and the TAPS Tool / The Tobacco, Alcohol, Prescription medications, and other Substance Tool, which is a screening and assessment tool for tobacco use, alcohol use, prescription medication misuse, and illicit substance use in the past year.

    Time frame: baseline, 3 months, 6 months, 12 months

  5. Number of Patients reporting Sense of hope as evidenced by improved sense of goal directed energy and/or planning to accomplish goals m

    Sense of hope will increase in the experimental group (SBIRT) compared to the control group (treatment as usual). This will be measured by the Adult Hope Scale (AHS).

    Time frame: baseline, 3 months, 6 months, 12 months

  6. Number of Patients reporting Symptoms of depression

    Symptoms of depression will decrease in the experimental group (SBIRT) compared to the control group (treatment as usual). This will be measured by the CES-D / Center for Epidemiologic Studies Depression Scale.

    Time frame: baseline, 3 months, 6 months, 12 months

  7. Number of Patients reporting Symptoms of anxiety

    Symptoms of anxiety will decrease in the experimental group (SBIRT) compared to the control group (treatment as usual). This will be measured by the CESA / Center for Epidemiologic Studies Anxiety Scale.

    Time frame: baseline, 3 months, 6 months, 12 months

  8. Number of Patients with Gut microbiome/bacterial composition at the genera level, and functional characteristics of genes for bacterial populations

    Secondary outcomes from gut microbiome evaluation will be bacterial composition at the genera level, and functional characteristics of genes for bacterial populations. This will be analyzed using stool samples.

    Time frame: baseline, 3 months, 6 months, 12 months

  9. Number of Patients with Immune Activation, Inflammation and liver injury related outcomes

    Secondary outcomes from plasma/blood samples will be i) Intestinal fatty acid binding protein (IFABP) and lipopolysaccharide (LPS) for gut permeability and microbial translocation; ii) sCD14 and inflammatory cytokines including TNFα, IL-1β, MCP-1, IL-8, IL-6 for immune activation and inflammation and iii)AST, ALT and CK18 for liver injury.

    Time frame: baseline, 3 months, 6 months, 12 months

07

Study locations

1 of 1 sites recruiting
  • University of Louisville
    Louisville, Kentucky 40202, United States
    • Andrea M Reyes Vega, MD,MSc · Contact · a0reye02@louisville.edu · 502-852-8884
    • Vania Remenik, MD · Contact · vania.remenik@louisville.edu
    • Shirish Barve, PhD · Principal investigator
    • Smita Ghare, PhD · Sub investigator
    • Jelani Kerr, PhD · Sub investigator
    • Lesley Harris, PhD · Sub investigator
    • Andrea Reyes Vega, MD, MSc · Sub investigator
    Recruiting
08

References and documents

Publications

  • Blumenthal J, Pasipanodya EC, Jain S, Sun S, Ellorin E, Morris S, Moore DJ. Comparing Self-Report Pre-Exposure Prophylaxis Adherence Questions to Pharmacologic Measures of Recent and Cumulative Pre-Exposure Prophylaxis Exposure. Front Pharmacol. 2019 Jul 5;10:721. doi: 10.3389/fphar.2019.00721. eCollection 2019. PubMed 31333454 ↗
  • Higgins-Biddle JC, Babor TF. A review of the Alcohol Use Disorders Identification Test (AUDIT), AUDIT-C, and USAUDIT for screening in the United States: Past issues and future directions. Am J Drug Alcohol Abuse. 2018;44(6):578-586. doi: 10.1080/00952990.2018.1456545. Epub 2018 May 3. PubMed 29723083 ↗
  • Conigrave KM, Hall WD, Saunders JB. The AUDIT questionnaire: choosing a cut-off score. Alcohol Use Disorder Identification Test. Addiction. 1995 Oct;90(10):1349-56. doi: 10.1046/j.1360-0443.1995.901013496.x. PubMed 8616463 ↗
  • Saunders JB, Aasland OG, Babor TF, de la Fuente JR, Grant M. Development of the Alcohol Use Disorders Identification Test (AUDIT): WHO Collaborative Project on Early Detection of Persons with Harmful Alcohol Consumption--II. Addiction. 1993 Jun;88(6):791-804. doi: 10.1111/j.1360-0443.1993.tb02093.x. PubMed 8329970 ↗
  • Humeniuk R, Henry-Edwards S, Ali R, Poznyak V, Monteiro MGea. The Alcohol, Smoking and Substance involvement Screening Test (ASSIST): manual for use in primary care. Geneva, Swizterland World Health Organization;2010.
  • Zhang W, O'Brien N, Forrest JI, Salters KA, Patterson TL, Montaner JS, Hogg RS, Lima VD. Validating a shortened depression scale (10 item CES-D) among HIV-positive people in British Columbia, Canada. PLoS One. 2012;7(7):e40793. doi: 10.1371/journal.pone.0040793. Epub 2012 Jul 19. PubMed 22829885 ↗
  • Ghare S, Singhal R, Bryant V, Gautam S, Tirumala CC, Srisailam PK, Reyes-Vega A, Ghooray D, McClain CJ, Hoffman K, Petrosino J, Bryant K, Govind V, Cohen R, Cook RL, Barve S. Age-Associated Gut Dysbiosis, Marked by Loss of Butyrogenic Potential, Correlates With Altered Plasma Tryptophan Metabolites in Older People Living With HIV. J Acquir Immune Defic Syndr. 2022 Feb 1;89(Suppl 1):S56-S64. doi: 10.1097/QAI.0000000000002866. PubMed 35015746 ↗
  • Fulcher JA, Li F, Cook RR, Zabih S, Louie A, Okochi H, Tobin NH, Gandhi M, Shoptaw S, Gorbach PM, Aldrovandi GM. Rectal Microbiome Alterations Associated With Oral Human Immunodeficiency Virus Pre-Exposure Prophylaxis. Open Forum Infect Dis. 2019 Oct 29;6(11):ofz463. doi: 10.1093/ofid/ofz463. eCollection 2019 Nov. PubMed 32258202 ↗
  • Dube MP, Park SY, Ross H, Love TMT, Morris SR, Lee HY. Daily HIV pre-exposure prophylaxis (PrEP) with tenofovir disoproxil fumarate-emtricitabine reduced Streptococcus and increased Erysipelotrichaceae in rectal microbiota. Sci Rep. 2018 Oct 12;8(1):15212. doi: 10.1038/s41598-018-33524-6. PubMed 30315206 ↗
  • Perler BK, Reinhart EM, Montgomery M, Maynard M, Shapiro JM, Belenky P, Chan PA. Evaluation of the Microbiome in Men Taking Pre-exposure Prophylaxis for HIV Prevention. AIDS Behav. 2021 Jul;25(7):2005-2013. doi: 10.1007/s10461-020-03130-7. Epub 2021 Jan 4. PubMed 33394167 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2023 (actual). Primary completion is estimated for Oct 2027, 50 months after the start.

Of 459 non-industry interventional studies with no phase under Alcoholism, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 56. This study's planned 50 months is above that.

Counting every sponsor, half of 482 studies reached it within 34 months; a quarter within 17 and three quarters within 54.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 28, 2022
First posted
Aug 22, 2023
StartActual
Aug 1, 2023
Primary completionEst.
Oct 24, 2027
CompletionEst.
Oct 24, 2027
Last update
Jul 22, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06005298
Lead sponsor
Shirish S Barve
Responsible party
Shirish S Barve (Professor, University of Louisville) — Sponsor-investigator
First posted
Aug 22, 2023
Start date
Aug 1, 2023
Primary completion
Oct 24, 2027 (estimated)
Completion
Oct 24, 2027 (estimated)
Last update
Jul 22, 2024

Study contacts

Andrea Reyes Vega, MD, MSc
Contact
a0reye02@louisville.edu
502852884
Vania Remenik, MD
Contact
vania.remenik@louisville.edu
5028528884
Shirish Barve, PhD
principal investigator · University of Louisville

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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