Recruiting

Social Network Intervention

Sponsor:

Johns Hopkins University

Code:

NCT06103370

Conditions

HIV Infections

Substance Use Disorders

Addiction

Opioid Use

Drug Use

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Peer-educator-based network

Study Details

Brief summary:

The goal of this clinical trial is to evaluate the effectiveness of a social network intervention to recruit people who inject drugs and their networks for HIV testing and linkage to HIV prevention and treatment services in Maryland. Study aims are to determine the effectiveness of a social network driven intervention to increase:

  • HIV testing (primary);
  • PrEP knowledge;
  • Uptake of HIV services and pre-exposure prophylaxis (PrEP);
  • Uptake of medication for opioid use disorder (MOUD) initiation.

Eligible participants who access syringe service programs (SSPs) serving two counties in Maryland and their risk network members (NMs) will be recruited using an established network inventory and coupon recruitment method. When an index successfully recruits NMs, the index-NM cluster will be randomized to either a peer-educator intervention arm or an equal-attention control arm. Index participants randomized to the peer-educator intervention arm will complete a training program adapted with stakeholder input to context that emphasizes effective communication, frequent HIV testing, and awareness of evidence-based HIV prevention and treatment services. An important innovation to the network intervention will be training indexes to use and distribute HIV self-test kits and naloxone to their NMs. Index participants randomized to the equal-attention control arm will receive training sessions focused on the opioid overdose epidemic and will not include any training to serve as a peer educator. All participants (indexes and NMs) will complete study assessments at baseline and at 3 and 9 months. We will compare the peer-educator intervention group and the equal-attention control group on rates of HIV testing, knowledge of PrEP options and resources, and rates of initiation of HIV treatment, PrEP, and MOUD treatment since the previous assessment (past 3 or 6 months).

Conditions

HIV Infections

Substance Use Disorders

Addiction

Opioid Use

Drug Use

Study ID

NCT06103370

Start date

Oct 28, 2025

Status verified date

Nov, 2025

Completion date

Nov, 2028

Anticipated

Primary completion date

Nov, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

Inclusion criteria for index participants:

  • Aged 18 or older
  • Self-reported injection drug use in the prior month
  • Accessed services at the SSP in the prior 3 months
  • Willing to undergo training and attend weekly booster group sessions
  • Able to recruit at least 1 drug use Network Member (NM) into study
  • Willing to talk with peers about PWID topics such as HIV prevention and care
  • Not previously enrolled in the study as index or NM
  • English-speaking

Inclusion criteria for network member participants:

  • Aged 18 or older
  • Self-reported injection drug use in the prior month
  • Have a valid coupon or able to recall the 3-digit ID number
  • Not previously enrolled in the study as index or NM
  • English-speaking

Exclusion criteria:

• Individuals lacking the capacity to consent

Study Design

Enrollment

360 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Health Services Research

Interventions and Outcome Measures

Arms

experimental: Peer-educator-based network intervention

Indexes randomized to the intervention arm will complete a training program that emphasizes effective communication, frequent HIV testing, and awareness of evidence-based HIV prevention and treatment services. An important innovation to the network intervention will be training indexes to use and distribute HIV self-test kits and naloxone to their network members (NMs).

no intervention: Equal-attention control

This group will receive training sessions that will be focused on the opioid overdose epidemic and will not include any training to serve as a peer educator.

Interventions

Peer-educator-based network

The intervention is a social network-based method of dispersing HIV knowledge, HIV self-testing (HIVST) kits, and naloxone in social networks of people who inject drugs (PWID). It targets index participants (peers) to receive training on HIVST, peer education, and linkage to syringe service programs (SSPs) for HIV services.

Primary outcome measure

  • Proportion of HIV testing for Network Members [ Time Frame: 3 months, 9-months ]

Central Contacts and Locations

Central contacts

Oluwaseun Falade-Nwulia, MBBS, MPH

410-550-6234ofalade1@jhmi.edu

Locations

Frederick County Health Department, Street Safe Program

Recruiting

Frederick, Maryland, United States, 21701

Contacts

More Information

Sponsor

Johns Hopkins University

Last update posted

Nov 10, 2025

Last verified

Nov, 2025

Keywords

  • Injection Drug Use
  • HIV Prevention
  • Social Networks

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Johns Hopkins University on 2025-11-10.