CClinicalTrials.gg
Not yet recruitingNCT07281378Updated Sep 29, 2026

Reducing Co-occurring Substance Use and HIV Risk Among Stimulant-using Men at High Risk for HIV in the United States of America.

An interventional study of Tailored Positive Affect Intervention and Contingency Management in Drug Use Disorders, PrEP Uptake and PrEP Adherence, sponsored by University of Florida. Not yet recruiting. Open to male participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-29.

Sponsored by University of Florida · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
84
Allocation
Randomized
Ages
18 Years and older
Sex
Male
01

Study summary

This intervention will focus on stimulant-using men at high risk for HIV who are in need of tailored behavioral interventions to mitigate co-occurring stimulant use and HIV risk in the era of pre-exposure prophylaxis (PrEP). The study is a pilot randomized controlled trial to evaluate the adaptation, feasibility, acceptability, and preliminary efficacy of a behavioral intervention.

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Conditions studied

  • Drug Use Disorders
  • PrEP Uptake
  • PrEP Adherence
  • HIV Risk Behavior

Keywords

  • PrEP
  • PrEP uptake
  • HIV
  • substance use
  • stimulant use
  • men at high risk for HIV
03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  1. be 18 years of age or older;
  2. be sexually active cisgender men at high risk for HIV (foreign and US-born, residing in the US)-reporting any condomless anal sex (CAS) in the past three months with a man;
  3. report use of stimulant (i.e., methamphetamine, powder cocaine, or crack-cocaine) at least one day in the past three or six month;
  4. have HIV-negative serostatus;
  5. be bilingual (Spanish and English), or Spanish or English monolingual;
  6. meet CDC criteria for PrEP eligibility.

Exclusion criteria

Exclusion Criteria:

  1. display diminished capacity to consent (e.g., cognitive impairment); or
  2. severe psychiatric symptoms (e.g., psychosis) that require more intensive treatment;
  3. if they are HIV positive or living with HIV;
  4. if they are already taking PrEP; and
  5. if the participant can't consent to participate in English or Spanish.
04

Study design

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

Study arms

  • Other
    Attention-Control condition

    Participants randomized to the control condition will have six 1-on-1 sessions with a facilitator engaging in writing exercises. The sessions will be comparable in length to the intervention sessions but will not include any skills practice. Each session will include a neutral writing exercises.

    Behavioral: Contingency Management

  • Experimental
    Experimental condition

    Participants randomized to the experimental condition (tailored behavioral intervention) will have a 1-on-1 session with a facilitator. The intervention consists of six individually delivered sessions (1-2 sessions per week, approximately 1.5 hours each). The intervention will be interactive and include rapport- and trust-building activities; didactic teaching; multimedia (e.g., videos) messages to facilitate modeling and discussion; role-playing and skills building, practice, and feedback. The intervention will be led by a CITI certified facilitator, who is also a member of the study team. The sessions are: (1) Positive affect skills; (2) Positive Conscious Networks broaden and building supportive personal networks; (3) Mindfulness; (4) Personal Strengths and Obtainable Goals; (5) Positive Reassessment; and (6) Compassion/solidarity to one-self as to others. Sessions/modules will be guided by Segmented Assimilation and Stress and Coping Theory.

    Behavioral: Tailored Positive Affect Intervention · Behavioral: Contingency Management

Interventions

  • BehavioralTailored Positive Affect Intervention

    The intervention consists of six individually delivered sessions (1-2 sessions per week, approximately 1.5 hours each). The intervention will be interactive and include rapport- and trust-building activities; didactic teaching; multimedia (e.g., videos) messages to facilitate modeling and discussion; role-playing and skills building, practice, and feedback. T The sessions are: (1) Positive affect skills; (2) Positive Conscious Networks broaden and building supportive personal networks;(3) Mindfulness; (4) Personal Strengths and Obtainable Goals; (5) Positive Reassessment; and (6) Compassion/solidarity to one-self as to others. Sessions/modules will be guided by Segmented Assimilation and Stress and Coping Theory.

  • BehavioralContingency Management

    Incentives will be provided as positive reinforcement of two key behaviors that are crucial to increase PrEP uptake. First, participants will receive incentives for documented evidence that they have completed a medical visit for PrEP clinical evaluation (including HIV testing). Second, participants completing PrEP clinical evaluation will receive incentives when they document evidence of an active prescription of PrEP.

05

What researchers measure

Primary outcomes

  1. Rate of PrEP uptake

    Changes in number of participants obtaining prescription to begin PrEP. Measured through documented evidence of an active prescription for PrEP.

    Time frame: From enrollment to 6 months

Secondary outcomes

  1. Stimulant use (self-report)

    Changes in the severity of participant stimulant use as measured by the Alcohol, Smoking, and Substance Involvement Screen Test (ASSIST) composite scores for cocaine and amphetamine-type stimulants.

    Time frame: Enrollment to 6 months

  2. Condomless Anal Sex (CAS)

    Changes in the number of CAS partners who are not taking PrEP or virally suppressed.

    Time frame: From enrollment to 6 months

  3. Social Network Composition

    Changes in the number of social network alters who use stimulants and increases in the number of social network alters who are taking PrEP.

    Time frame: From enrollment to 6 months

06

Study locations

No study locations are listed for this record.

07

References and documents

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Individual participant data

Plan to share: Yes — De-identified datasets from the study will be shared.

Supporting information: Study protocol, Icf

08

Registry details

Key details

Study ID
NCT07281378
Lead sponsor
University of Florida
Collaborators
National Institute on Drug Abuse (NIDA)
Responsible party
Sponsor
First posted
Dec 15, 2025
Start date
Sep 13, 2026 (estimated)
Primary completion
May 31, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Sep 29, 2026

Study contacts

Jose Colon-Burgos, DrPH
Contact
jcolonburgos@phhp.ufl.edu
(352) 273-9188
Jose Colon-Burgos, DrPH
principal investigator · University of Florida

Oversight

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

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