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A Self-administered PrEP Decisional Aid for Dissemination With HIV Self-test Kits (DASH) (DASH)

29. maj 2026 opdateret af: K Rivet Amico, University of Michigan
People using HIV self-testing (HIVST) need access to quality HIV-prevention programming, including education and exploration of pre-exposure prophylaxis (PrEP) - an effective biomedical prevention tool that continues to expand in choices and access points in the US. HIVST and PrEP are both central to ending the HIV epidemic, but presently they are not linked together in a systematic way. To address the critical need for PrEP programming to accompany HIV self-testing (HIVST), our study will work with experts and HIVST users to develop and pilot a novel, interactive, mobile friendly PrEP decisional-aid mobile optimized website that helps to raise awareness around PrEP and guides people through a PrEP-decision-making process that matches their needs and values, and links people to resources for local or online PrEP. This PrEP Decisional Aid to accompany Self HIV-test kits (the DASH app) will be in a randomized controlled pilot trial with 120-170 HIV self-test kit users in the CDC's Together TakeMeHome HIV-test kit dissemination program. PrEP uptake at 3-months (primary outcome) will be compared between arms descriptively and with logistic regression models. Change in additional PrEP related factors (knowledge, stigma, decisional conflict, barriers and facilitators) will be assessed as secondary outcomes. Implementation metrics, acceptability and feasibility will also be evaluated quantitatively and qualitatively. Results will inform revisions and recommendations for a decisional aid for raising PrEP awareness and use among self HIV-test users.

Studieoversigt

Status

Tilmelding efter invitation

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This mixed methods intervention development and implementation hybrid (type 1) study will pilot a self-administered PrEP Decisional Aid for dissemination with Self-administered HIV test kits (DASH). Recruiting from Together TakeMeHome (TTMH) HIVST kit recipients, the proposed pilot has 3 specific aims. The first aim was to develop the PrEP decisional aid for dissemination with self-administered HIV test kits (DASH) through iterative expert and community consultation.

AIM 2- Pilot DASH with TTMH HIVST kit recipients and determine direction and magnitude of impact on PrEP awareness, intentions and starts. HIVST recipients from TTMH will be recruited into a 3-month pilot completing online surveys assessing PrEP awareness, knowledge, intentions, and use at baseline, and 1- and 3-month follow-up. Participants randomly assigned to the DASH arm, versus the measures-only arm, receive the DASH link post baseline. A minimum of 120 and maximum of 170 (to reach 60 intervention arm participants who complete 1 full session of the DASH app) will be enrolled. PrEP uptake at 3-months (primary outcome) will be compared between arms descriptively and with logistic regression models (both intent to treat and as-treated). Change in additional PrEP related factors (knowledge, stigma, decisional conflict, barriers and facilitators) will be assessed as secondary outcomes. Longitudinal growth modelling will be used to analyze over-time data between study arms. H2: DASH arm participants will have more self-reported PrEP starts (primary) by 3 months than those in the comparison condition. H3: DASH arm participants will report more favorable secondary outcomes on follow-up surveys.

AIM 3- Conduct mixed methods evaluation of acceptability, feasibility and experiences with the DASH. All participants will complete a brief survey on acceptability of the PrEP-related resources received (DASH or standard for what is locally available). Patterns of utilization of DASH components, including use of links to PrEP services, will be summarized. Qualitative virtual in-depth interviews with 30 participants (20 DASH, 10 control) will explore nuanced aspects of PrEP decision making and expand on the quantitative data. H4: DASH will be evaluated as acceptable and feasible.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

170

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Michigan
      • Ann Arbor, Michigan, Forenede Stater, 48109
        • University of Michigan

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Age 18-39
  • Comfort with English material and communication (oral and written)
  • Access to internet
  • HIV negative (self-report)
  • PrEP Naive (never used PrEP)

Exclusion Criteria:

• Ever used PrEP

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Ingen indgriben: Comparison condition
Participants in the comparison condition do not receive additional PrEP related information through the project- but have access to PrEP information from the self-test kit and other programs that are available.
Eksperimentel: DASH Intervention Arm
Participants receive access to the DASH app through an emailed link with reminders to use the link at least one during the 3 month study period
Adfærdsmæssigt: PrEP Decisional Aid for dissemination with Self-administered HIV test kits (DASH)
Participants assigned to the intervention arm will be provided with a unique code to access the login for the DASH app. The app provides a PrEP information, explores values and decisions around PrEP, and leads participants through an exploration of their PrEP decisions with links to PrEP resources (local and online) for those interested in findings out more about or starting PrEP. Participants are asked to complete one complete session and return back to the app at any time during their participation.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PrEP Start
Tidsramme: 3 months
Self-reported PrEP initiation determined by a single item asking "Are you currently using PrEP?" [Yes/No]
3 months
Theoretical Framework of Acceptability Scale for DASH
Tidsramme: Month 1 and month 3
Adapted from the Theoretical Framework of Acceptability Scale. 9 items assess affective attitudes, burden, perceived effectiveness, intervention coherence, opportunity costs, self-efficacy and ethicality- with likert scale of 1 to 5. A total acceptability score can be calculated by summing responses to items producing a range of 9 to 45 with higher scores reflecting higher overall acceptability.
Month 1 and month 3

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
PrEP Information
Tidsramme: Baseline, Month 1 and Month 3
Accurate information about PrEP is assessed using using 10 items stated- 5 states as self-ratings of information (I know...) and 5 as facts with answer options of True, False, Not sure/don't know. Scores are summed across all items with a range of 0 (no perceived knowledge and none correct) to 10 (true to all perceived knowledge questions and correct on all factual items). Higher scores reflect higher knowledge/information accuracy about PrEP. Outcomes use baseline to determine gains in knowledge over time.
Baseline, Month 1 and Month 3
Movement on PrEP Care Continuum
Tidsramme: Baseline, Month 1 and Month 3
Movement through the PrEP continuum of care is calculated at month 1 and month 3. Participants are characterized as not interested in PrEP, interested in PrEP, spoke with a navigator about PrEP since starting the DASH project, spoke with a provider about PrEP since starting the DASH project, or started PrEP. Movement is identified by determing if the participant has made forward movement in this process or has maintained being on PrEP between month 1 and month 3 surveys. Stage is ordinal and descriptive.
Baseline, Month 1 and Month 3

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Decisional Conflict
Tidsramme: Baseline, Month 1 and Month 3
The Decisional Conflict Scale adapted for PrEP related decisions is a 16 item measure providing states and likert scale response (5 points ranging from strongly disagree=4 to strongly agree=0). Subscales include informed decisions (3 items), values clarity (3 items), support (3 items), uncertainty (3 items) and effective decision (4 items). Each subscale is created by summing the responses items, dividing by the total number of items in the scale, and multiplying by 25. Scores range from 0 (good decision) to 100 (bad decision). A total score is created by summing all 16 items, dividing by 16, and multiplying by 25 with a range of 0 [no decisional conflict] to 100 [extremely high decisional conflict]. Total score will be used for the outcome.
Baseline, Month 1 and Month 3
PrEP Motivation
Tidsramme: Baseline, Month 1 and Month 3
PrEP motivation is measured with 17 items created for the study that assesses attitudes and beliefs, distrust, and facilitators of PrEP use framed as statements with a 5 point likert scale (strongly disagree=1 to strongly agree=5). All items are summed and divided by 17 to create a total motivation scale score (average response, range of 1 to 5). Higher scores reflect higher motivation to use PrEP.
Baseline, Month 1 and Month 3
DASH Trustworthiness
Tidsramme: Month 1
Adapted Trust and Suspicion IT Scale, 6 items adapted to reflect DASH from the measure's trustworthiness scale assess trust in the information provided by the DASH app (statements with 7-point likert response options of Strongly disagree to strongly agree). Items are totaled and divided by 6 to create an average trust in DASH score (range of 1 to 7) with higher scores reflecting higher levels of trust.
Month 1
System Usability Scale
Tidsramme: Month 1
10 items (statements) from the System Usability Scale adapted to reflect experiences, thoughts, and beliefs around DASH with 5-point likert scale response options (0=strongly disagree to 4= strongly agree) assess overall "usability" of the DASH app. After reverse scoring items reflecting burden/low usability, item responses are summed and multiplied by 2.5 producing a range of 0 to 100 with higher scores reflecting higher usability.
Month 1
Perceived Usefulness of DASH
Tidsramme: Month 1
Perceived Usefulness created for this study advised by previous evaluations of decisional aid tools. 9 items assessing general and specific characteristics of the app that were "helpful", "useful". and "facilitative" for PrEP related awareness and decision making. A 5-point likert scale (strongly disagree=1 to strongly agree) is used with total score (divided by 9) providing an average agreement (range of 1 to 5) with usefulness. Higher scores reflect higher levels of perceived usefulness of the DASH app.
Month 1
Suspiciousness of DASH
Tidsramme: Month 1
Suspicion of DASH is assessed with 4 items from the Trustworthiness and IT Suspicion scale's suspicion subscale (statements with 7-point likert response options of Strongly disagree to strongly agree). After reverse scoring relevant items, scores are summed and divided by 4 to create an average (range of 1 to 7) with higher scores reflecting higher levels DASH suspicion.
Month 1

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Michigan

Samarbejdspartnere

National Institute of Mental Health (NIMH)

Efterforskere

  • Ledende efterforsker: K Rivet Amico, PhD, University of Michigan

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

17. april 2026

Primær færdiggørelse (Anslået)

31. oktober 2026

Studieafslutning (Anslået)

31. december 2026

Datoer for studieregistrering

Først indsendt

8. maj 2026

Først indsendt, der opfyldte QC-kriterier

21. maj 2026

Først opslået (Faktiske)

29. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • HUM00284303
  • 5R34MH135799 (U.S. NIH-bevilling/kontrakt)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

National Data Archive received participant data using a psuedo identification number

IPD-delingstidsramme

NDA data is uploaded quarterly and is available to public for use after the completion of the trial

IPD-delingsadgangskriterier

NDA has a system that researchers can use to request data access

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP

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