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Duo: A Phase IIIb Individual-Level Randomized Controlled Trial of an Integrated Strategy

15 juin 2026 mis à jour par: HIV Prevention Trials Network

Duo: A Phase IIIb Individual-Level Randomized Controlled Trial of an Integrated Strategy of HIV PrEP and STI PEP for Young Men

Individual-Level Randomized Controlled Trial of an Integrated Strategy of HIV pre-exposure prophylaxis (PrEP) and sexually transmitted infection (STI) post-exposure prophylaxis (PEP) for Young Men

Aperçu de l'étude

Description détaillée

This study will test a suite of mHealth tools to increase HIV pre-exposure prophylaxis (PrEP) uptake and adherence among young men in communities most affected by the HIV epidemic and evaluate the uptake, adherence, and acceptability of doxycycline for sexually transmitted infection (STI) post-exposure prophylaxis (doxy-PEP).

Type d'étude

Interventionnel

Inscription (Estimé)

400

Phase

  • Phase 3

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

  • Nom: Kailazarid Gomez-Feliciano, MPM
  • Numéro de téléphone: 919-321-3486
  • E-mail: kgomez@fhi360.org

Lieux d'étude

      • Buenos Aires, Argentine, C1427CEA
    • Rio de Janeiro
      • Manguinhos, Rio de Janeiro, Brésil, 221045-900
        • Instituto de Pesquisa Clinicaq Evandro Chagas CRS
      • Lima, Pérou, 32-15088
    • California
      • Los Angeles, California, États-Unis, 90095
        • UCLA Vine Street Clinic
        • Contact:
    • New York
      • The Bronx, New York, États-Unis, 10451
        • Bronx Prevention Research Center CRS
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte

Accepte les volontaires sains

Oui

La description

Inclusion Criteria:

  1. Men ages 18 - 29 years
  2. Men who are in communities most affected by the HIV epidemic
  3. Willing and able to provide informed consent
  4. Reports having anal sex with men in the last 6 months
  5. Have certain risk factors for HIV acquisition, defined as any of the following in the past 6 months:

    1. Any condomless anal sex with a man; not including within a monogamous relationship with an HIV-negative partner or an HIV-positive partner who is virally suppressed
    2. Reporting 2 or more male partners, regardless of condom use
    3. Reporting gonorrhea, chlamydia, or syphilis diagnosis
    4. Any stimulant use (e.g., cocaine, amphetamines)
  6. Not on PrEP within the past 3 months due to participant choice
  7. Interested in learning more about PrEP or starting PrEP
  8. No evidence of HIV infection at Screening and Enrollment, based on the HIV testing algorithm
  9. Owns an iOS or Android mobile phone and able to successfully download mobile apps and send and receive text messages
  10. Must not share the mobile phone used for their participation in the study
  11. Able to read and write

Exclusion Criteria:

  1. Participated in HPTN 113-01
  2. Currently participating in another interventional trial of PrEP agents, or prior enrollment in studies of long-acting PrEP, including HPTN 083
  3. Plans to move away from the study area within the next year
  4. Currently on doxycycline for STI PEP
  5. Has ever used CAB-LA or other long-acting PrEP agent
  6. Tetracycline allergy
  7. Prior diagnosis of HIV infection
  8. Reactive HIV rapid test at Screening or reactive HIV Ag/Ab rapid test at Enrollment, regardless of subsequent HIV test results
  9. Any other condition that, in the opinion of the Investigator of Record (IoR)/designee, would preclude informed consent, make study participation unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives would make the patient unsuitable for the study or unable/unwilling to comply with the study requirements

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: 3P mHealth package
HIV PrEP, doxy-PEP, 3P mHealth package (3P: MyPrEP + PrEPmate + PrEPsmart tools) to assist with PrEP uptake and adherence decision making, standard-of-care PrEP adherence counseling from qualified study staff, handout about the different PrEP options available at the site
Choice of F/TDF, F/TAF, or CAB-LA for HIV prevention
Doxycycline as doxy-PEP for STI prevention
Suite of mHealth tools (MyPrEP, PrEPmate, PrEPsmart) to assist with HIV PrEP uptake and adherence decision making
Handout about HIV PrEP options available at the site
Standard-of-care HIV PrEP counseling from qualified study staff
Comparateur actif: Standard-of-care services
HIV PrEP, doxy-PEP, standard-of-care PrEP adherence counseling from qualified study staff, handout about the different PrEP options available at the site
Choice of F/TDF, F/TAF, or CAB-LA for HIV prevention
Doxycycline as doxy-PEP for STI prevention
Handout about HIV PrEP options available at the site
Standard-of-care HIV PrEP counseling from qualified study staff

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
To determine the efficacy of the 3P mHealth package on PrEP uptake among participants
Délai: 52 weeks
PrEP uptake is defined as the proportion of enrolled participants who elect to initiate PrEP (with a documented PrEP dispensation by the site) at any time during the 52 weeks of follow-up. Participants who did not initiate PrEP before loss to follow-up will be classified as non-initiators. PrEP uptake will be assessed at Week 52 for each study arm with 95% confidence limits computed using the binomial distribution. A logistic regression model will be used to compare PrEP uptake between the study arms.
52 weeks
To determine the efficacy of the 3P mHealth package on PrEP adherence among participants
Délai: Weeks 20, 36, and 52

PrEP adherence is assessed at Weeks 20, 36 and 52 through biomedical testing for oral PrEP regimens and documentation of CAB-LA injection for CAB-LA.

Adherence measures are described in Section 8.7. Participants on oral PrEP missing an assessment visit and with no PrEP dispensed at their most recent visit will be considered non-adherent. Also, participants who have not yet initiated PrEP at a visit will be considered non-adherent at that visit. The average PrEP adherence at a visit will be computed as the proportion of participants who are determined to be adherent at that visit by study arm. The associated 95% confidence limits will be computed using the binomial distribution. Generalized estimating equations (GEE) with a logit link function will be used to examine differences in adherence proportions between the 3P and Control arms at Weeks 20, 36 and 52, while accounting for potential correlation between PrEP adherence measures over time for each participant.

Weeks 20, 36, and 52
To assess doxycycline PEP uptake and associated factors
Délai: Week 52
doxy-PEP uptake is defined as the proportion of participants dispensed doxy-PEP during the 52 weeks of study follow-up period. doxy-PEP uptake will be computed with 95% confidence limits at Week 52. Multivariable logistic regression models will be used to assess association between doxy-PEP uptake and factors including study group, demographic and behavioral characteristics.
Week 52
To assess doxycycline PEP use and associated factors
Délai: Weeks 20, 36, and 52
doxy-PEP use will be assessed at Weeks 20, 36 and 52. Doxy-PEP use at an assessment visit will be computed as the proportion of participants reporting use following sex acts, reported at that visit. The corresponding 95% confidence limits will be computed based on the binomial distribution. Multivariable GEE models will be used to investigate possible associations between doxy-PEP use and factors including study group, demographic and behavioral characteristics.
Weeks 20, 36, and 52
To assess doxycycline PEP acceptability and associated factors
Délai: Week 52
Descriptive statistics will be used to summarize doxy-PEP acceptability. Multivariable generalized linear models (with a link function that is appropriate to the scale of the measure for doxy-PEP acceptability) will be used to investigate associations between doxy-PEP acceptability and factors including study group, sociodemographic, and behavioral characteristics.
Week 52
To assess the incidence of HIV infections among participants choosing to use CAB-LA
Délai: Week 52

Uptake of CAB-LA is defined as the proportion of participants choosing to initiate CAB-LA with a documented receipt of a CAB-LA injection during the study follow-up period. CAB-LA uptake will be computed with 95% confidence interval.

Incidence of HIV infection between the date of CAB-LA initiation and the date of switch to oral PrEP (for participants switching from CAB-LA to oral PrEP) or end of follow-up (for participants staying on CAB-LA from initiation through the end of the follow-up period) will be computed with 95% confidence interval among participants choosing to use CAB-LA.

Week 52

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
To determine the acceptability and use of the 3P mHealth package in the intervention arm by site
Délai: Week 52
Descriptive statistics will be used to summarize the acceptability and use of the 3P mHealth package in the intervention arm by site.
Week 52
To compare the frequency, directionality, and reasons for PrEP regimen choice and switching, between arms
Délai: Week 52
Descriptive statistics will be used to summarize the frequency, directionality, and reasons for PrEP regimen choice and switching by arm. Generalized linear models will be used to assess differences in these descriptive summaries between the study arms. Reasons for PrEP regimen choice and switching obtained from qualitative interview data will be listed by arm.
Week 52
To evaluate demographic, behavioral, and attitudinal factors associated with choice of PrEP regimen
Délai: Week 52
Multivariable logistic regression models will be used to separately assess associations between each PrEP regimen choice and demographic, behavioral, and attitudinal factors.
Week 52
To determine the efficacy of the 3P mHealth package on prevention-effective adherence
Délai: Weeks 20, 36, and 52
  • The proportion of enrolled participants with incident STI infection will be computed with 95% confidence limits at Weeks 20, 36 and 52 by study arm.
  • The proportion of enrolled participants with incident HIV infection will be computed at Weeks 20, 36 and 52 by study arm.
  • The proportion of enrolled participants reporting HIV risk based on self-reported sexual behavior and HIV status of sexual partner will be computed at Weeks 20, 36 and 52 by study arm.
  • The proportion of enrolled participants who are determined to be PrEP adherent and potentially at HIV risk (based on incident STI, self-reported sexual behavior and HIV status of partners) will be computed with 95% confidence limits at Weeks 20, 36 and 52 by study arm. GEE models with a logit link function will be used to compare the proportions between the study arms
Weeks 20, 36, and 52

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chaise d'étude: Susan Buchbinder, MD, San Francisco Department of Public Health and University of California San Francisco
  • Chaise d'étude: Jorge Gallardo-Cartagena, MD, Centro de Investigaciones Tecnológicas Biomédicas y Medioambientales
  • Chaise d'étude: Thiago Torres, MD, Instituto Nacional de Infectologia Evandro Chagas

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 septembre 2026

Achèvement primaire (Estimé)

1 septembre 2029

Achèvement de l'étude (Estimé)

1 septembre 2029

Dates d'inscription aux études

Première soumission

7 octobre 2024

Première soumission répondant aux critères de contrôle qualité

15 juin 2026

Première publication (Réel)

22 juin 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

22 juin 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

15 juin 2026

Dernière vérification

1 juin 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

For studies within two years of primary objective(s) publication, de-identified individual participant data that underlie results in a publication, will be provided upon request. For studies more than two years from the primary objective(s) publication, de-identified datasets will be available upon request (Public Use Datasets).

Délai de partage IPD

Investigators may request de-identified datasets in order to duplicate published results, as required by specific journals. Otherwise, de-identified datasets will be made available upon request, two years following publication of the primary results manuscript.

Critères d'accès au partage IPD

Researchers may submit a request for access to data that has informed published results, by sending an email to HPTN-Data-Access@scharp.org. To access available de-identified datasets, investigators must complete the request form on the Atlas website. Researchers of approved requests will need to sign an HIV Prevention Trials Network (HPTN) Data Use Agreement before receiving the data and agree to use the provided acknowledgement statement.

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE
  • SÈVE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

produit fabriqué et exporté des États-Unis.

Oui

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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