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RecruitingNCT05762705Updated May 14, 2025

A Mobile Gaming App to Improve Adherence to PrEP

An interventional study of Multilevel Gaming Adherence Intervention and Treatment as Usual + in Medication Adherence and HIV/AIDS, sponsored by Rhode Island Hospital. Recruiting at 3 sites in United States. Open to participants aged 15 Years to 34 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-14.

Sponsored by Rhode Island Hospital · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Started Jun 2024; still recruiting 2 years 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Randomized
Ages
15 Years to 34 Years
Sex
All
01

Study summary

In this study, the investigators will test the mobile game, Viral Combat, for efficacy and acceptability among diverse participants, ages 15-34 years, receiving PrEP care in clinical settings in New England and Mississippi. Formative evaluation interviews will be conducted with stakeholders (healthcare workers, clinic administrators, and patients taking PrEP) to inform intervention delivery. Data from the formative interviews will also be used to make necessary adaptations to the game and assess acceptability for diverse populations and clinics. Viral Combat will then be further tested with 200 participants ages 15-34 years, receiving PrEP care at clinical sites in the South (n=100 Jackson, MS) and New England (n=100, Providence, RI; Boston, MA) in a multisite Hybrid Type 1 effectiveness-implementation randomized controlled trial (RCT). This trial will test the efficacy of the intervention compared to a control condition (a non-PrEP related game) on biological and behavioral measures. At the end of the trial, a summative evaluation of the implementation context using the i-PARIHS framework will occur. These interviews with study participants and clinic staff will inform future implementation and dissemination of Viral Combat.

Read the detailed description

In this study, the investigators will test the mobile game, Viral Combat, for efficacy and acceptability among diverse participants, ages 15-34 years, receiving PrEP care in clinical settings in New England and Mississippi. Formative evaluation interviews will be conducted with stakeholders (healthcare workers, clinic administrators, and patients taking PrEP) to inform intervention delivery. Data from the formative interviews will also be used to make necessary adaptations to the game and assess acceptability for diverse populations and clinics. Viral Combat will then be further tested with 200 participants ages 15-34 years, receiving PrEP care at clinical sites in the South (n=100 Jackson, MS) and New England (n=100, Providence, RI; Boston, MA) in a multisite Hybrid Type 1 effectiveness-implementation randomized controlled trial (RCT). This trial will test the efficacy of the intervention compared to a control condition (a non-PrEP related game) on biological and behavioral measures. At the end of the trial, a summative evaluation of the implementation context using the i-PARIHS framework will occur. These interviews with study participants and clinic staff will inform future implementation and dissemination of Viral Combat.

Aim 1: To conduct formative evaluation interviews, guided by the i-PARHIS framework, with approximately 30 stakeholders (23 PrEP patients, 4 clinical staff, 3 clinic administrators) in order to adapt Viral Combat for diverse PrEP patient populations, and to identify individual, organizational, and structural factors associated with its implementation.

Aim 2: To evaluate, in a Hybrid Type 1 effectiveness-implementation randomized controlled trial with 200 participants taking PrEP (15-34 years of age), the effectiveness of Viral Combat compared to a control group that receives a non-PrEP related game.

The investigators will examine the impact of the intervention on:

2a: improving adherence to PrEP using a biological measure (tenofovir from DBS), clinic records, and self-report; 2b: the potential mediators of the intervention, such as knowledge, motivation, self-efficacy, and game metrics.

Aim 3: To conduct summative evaluation interviews, following the RCT phase, with an additional 30 stakeholders ((23 PrEP patients, 4 clinical staff, 3 clinic administrators). Interviews will assess and summarize the i-PARIHS constructs relevant to the intervention's future implementation success.

02

Conditions studied

  • Medication Adherence
  • HIV/AIDS
03

In context

Acquired Immunodeficiency Syndrome

2,040 studies on the registry are indexed under Acquired Immunodeficiency Syndrome; 272 are open to participants now.

This study's planned enrollment of 200 is above the median of 105 across 1,543 interventional studies indexed under Acquired Immunodeficiency Syndrome.

Browse Acquired Immunodeficiency Syndrome studies →

Lead sponsor

Rhode Island Hospital is the lead sponsor of 187 studies on the registry; 37 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

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

04

Who can participate

Ages eligible
15 Years to 34 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 15-34 years old
  • English speaking
  • Initiated PrEP in the last 30 days or re-initiated PrEP after not taking PrEP for at least 1 month
  • HIV negative as per clinician and clinical record
  • Able to give consent/assent and not impaired by cognitive or medical limitations as per clinical assessment.

Exclusion criteria

Exclusion Criteria:

  • None
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
200 participants (estimated)

Study arms

  • Experimental
    Multilevel Gaming Adherence

    Participants in the intervention arm will receive Multilevel Gaming Adherence Intervention. Participants receive Viral Combat on their mobile phones, and, for 24 weeks, game-related text messages guided by self-reported medication adherence.

    Behavioral: Multilevel Gaming Adherence Intervention

  • Active comparator
    Treatment as Usual +

    TAU+ participants will receive the Treatment As Usual + intervention, which includes receiving a non-HIV related mobile game.

    Behavioral: Treatment as Usual +

Interventions

  • BehavioralMultilevel Gaming Adherence Intervention

    Information-Motivation-Behavior based mobile gaming application tailored for those taking PrEP and adherence-based text messages

  • BehavioralTreatment as Usual +

    non-PrEP related mobile gaming application

06

What researchers measure

Primary outcomes

  1. Tenofovir (TFV) blood concentration at 24 weeks

    Tenofovir (TFV) concentration in blood from either venipuncture or dried blood spot labs immediately post-intervention (at 24 weeks follow-up).

    Time frame: 24 weeks

Secondary outcomes

  1. Tenofovir (TFV) blood concentration at 48 weeks

    Tenofovir (TFV) concentration in blood from either venipuncture or dried blood spot labs at the end of study follow-up (at 48 weeks follow-up).

    Time frame: 48 weeks

  2. Self-reported Medication Adherence at 24 weeks

    Proportion of days with missed doses via self-report: (reported missed doses in past month) / (total number of days in month) immediately post-intervention (at 24 weeks follow-up).

    Time frame: 24 weeks

  3. Self-reported Medication Adherence at 48 weeks

    Proportion of days with missed doses via self-report: (reported missed doses in past month) / (total number of days in month) at the end of study follow-up (at 48 weeks follow-up).

    Time frame: 48 weeks

  4. Medical appointment adherence at 24 weeks

    Number of PrEP-related medical visits kept in the past 3 months based on clinic records at 24 weeks follow-up.

    Time frame: 24 weeks

  5. Medical appointment adherence at 48 weeks

    Number of PrEP-related medical visits kept in the past 3 months based on clinic records at 48 weeks follow-up.

    Time frame: 48 weeks

07

Study locations

3 of 3 sites recruiting
  • Boston Medical Center
    Boston, Massachusetts 02118, United States
    Recruiting
  • University of Mississippi Medical Center
    Jackson, Mississippi 39216, United States
    Recruiting
  • Lifespan (The Miriam Hospital and Rhode Island Hospital)
    Providence, Rhode Island 02904, United States
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05762705
Lead sponsor
Rhode Island Hospital
Responsible party
Sponsor
First posted
Mar 10, 2023
Start date
Jun 21, 2024
Primary completion
Mar 3, 2027 (estimated)
Completion
Mar 3, 2027 (estimated)
Last update
May 14, 2025

Study contacts

Laura Whiteley, MD
Contact
laura_whiteley@brown.edu
(401)-455-6375
James B Brock, MD
Contact
jbbrock@umc.edu
601-984-5560
Larry K Brock, MD
study director · Rhode Island Hospital
Sharon Vuppula, MD
study director · Boston Medical Center

Oversight

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

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