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Duurzaamheid en precisiepreventieproject

23 september 2026 bijgewerkt door: Bo Wang, University of Massachusetts, Worcester

Nationale implementatie van een evidence-based HIV-preventieprogramma: multilevel-schaalstrategieën en precisiepreventie

This is a five-year hybrid type 3 effectiveness-implementation study evaluating multilevel strategies to sustain a nationwide implementation of an evidence-based HIV prevention curriculum in schools. Advanced machine learning methods are being used to enhance implementation strategies. A Sequential, Multiple Assignment, Randomized Trial (SMART) design will be employed.

Studie Overzicht

Gedetailleerde beschrijving

A hybrid type 3 effectiveness-implementation study is proposed, using a SMART adaptive implementation trial that will evaluate the value of multilevel strategies to sustain Focus on Youth in Caribbean + Caribbean Informed Parents and Children Together (FOYC+CImPACT) in schools and harness advanced machine learning to help promote the FOYC+CImPACT sustainability by iteratively enriching implementation strategies. This study will also identify the most effective implementation strategy for teachers who implement <80% of core activities and for adolescents who are unlikely to respond to FOYC+CImPACT by using machine learning approaches. The primary outcome is program sustainability. Data from teachers, students, and focus groups will provide information on inner and outer contexts, strategies to promote implementation and sustainability, and program effectiveness.

Primary implementation of FOYC+CImPACT will be conducted by 156 grade-6 teachers in 65 government primary schools across four years. Annual FOYC booster sessions for students will be conducted by 49 Health and Family Life Education (HFLE) teachers in 30 junior high schools. Approximately 3,500 students will complete the full curricular assessment survey at the beginning and end of grade 6 and at the end of grades 7, 8, and 9.

Studietype

Ingrijpend

Inschrijving (Geschat)

3705

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

Studie Locaties

      • Nassau, De Bahama's
        • Werving
        • HIV/AIDS Office, FOY program
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

10 jaar tot 60 jaar (Kind, Volwassen)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Grade 6 teachers who teach Health and Family Life Education (HFLE) and their classes in 65 government primary schools.
  • Grade 7-9 HFLE teachers and their classes in 30 middle schools across 12 Bahamian islands.
  • FOYC (Focus on Youth in the Caribbean) is delivered as part of the standard HFLE curriculum.
  • Students who: 1) are enrolled in one of the participating schools as general education students in grade 6 (and followed through grades 7-9); and 2) speak and read English.

Exclusion Criteria:

  • Students who chose to opt out of participating in the study
  • Students who do not speak or read English sufficiently to participate in study activities.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Preventie
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Stage 1

All grade six teachers will go through the Usual Implementation (UI) of FOYC+CImPACT (teacher training only in Year 1).

Focus on Youth in the Caribbean (FOYC) is an evidence-based, eight-session life skills curriculum designed to reduce risk-taking behaviors related to HIV/STI transmission and teen pregnancy. Woven throughout FOYC is a decision-making model that provides guidance and practice in problem solving with a focus on how to obtain factual information on sexual health.

CImPACT is a single-session intervention including a 24-min educational video filmed in The Bahamas. The video focuses on effective parent-adolescent communication and listening strategies related to difficult topics including "safe-sex" followed by two role-plays for the parent and youth, a discussion, and a condom demonstration.

Experimenteel: Stage 2

Based on their performance in Year 1, teachers who do not meet the benchmark (implementing > 80% of core activities) will be randomized to receive 1) "Biweekly Monitoring and Feedback (BMF)" or 2) "BMF+Site-Based Assistance Mentorship (SAM)." Responders (completing at least 80% of core activities) will continue with UI.

Focus on Youth in the Caribbean (FOYC) is an evidence-based, eight-session life skills curriculum designed to reduce risk-taking behaviors related to HIV/STI transmission and teen pregnancy. Woven throughout FOYC is a decision-making model that provides guidance and practice in problem solving with a focus on how to obtain factual information on sexual health.

CImPACT is a single-session intervention including a 24-min educational video filmed in The Bahamas. The video focuses on effective parent-adolescent communication and listening strategies related to difficult topics including "safe-sex" followed by two role-plays for the parent and youth, a discussion, and a condom demonstration.

School coordinators will monitor teachers' implementation progress biweekly and provide feedback to teachers.

High-performing teachers will serve as team leaders and guide non-responding teachers on preparation and planning. The team leader will promote group activities and enhance interaction among teachers in these meetings.

Experimenteel: Stage 3

At the end of Year 2 (stage 2), the performance of the teachers in all three intervention arms will be assessed again. Non-responders in the UI arm will be re-randomized to receive either BMF or BMF+SAM. Non-responders in the BMF-only group will be re-randomized to receive BMF+SAM or BMF+enhanced SAM. Non-responders in the BMF+SAM group will receive BMF+enhanced SAM.

Focus on Youth in the Caribbean (FOYC) is an evidence-based, eight-session life skills curriculum designed to reduce risk-taking behaviors related to HIV/STI transmission and teen pregnancy. Woven throughout FOYC is a decision-making model that provides guidance and practice in problem solving with a focus on how to obtain factual information on sexual health.

CImPACT is a single-session intervention including a 24-min educational video filmed in The Bahamas. The video focuses on effective parent-adolescent communication and listening strategies related to difficult topics including "safe-sex" followed by two role-plays for the parent and youth, a discussion, and a condom demonstration.

School coordinators will monitor teachers' implementation progress biweekly and provide feedback to teachers.

High-performing teachers will serve as team leaders and guide non-responding teachers on preparation and planning. The team leader will promote group activities and enhance interaction among teachers in these meetings.

A FOYC coach (with FOYC implementation and training experience) will provide tailored in-person support, facilitate goal-setting, opportunities to interact with consultants, supportive text messaging, continuing education, networking strategies, and monthly check-ins.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Fidelity of Implementation
Tijdsspanne: Years 1, 2, 3, and 4

Adherence to the core activities (number of core activities taught as intended)

Years 1, 2, 3, and 4
Sustainability
Tijdsspanne: Year 4

Teachers' continued implementation of the intervention with fidelity (at least 80% of core activities) and adherence to program principles across 4 years

Year 4
Sustainment determinants
Tijdsspanne: Years 1 and 3

The Sustainment Measurement System Scale (SMSS) is a 35-item instrument that evaluates sustainment determinants and outcomes (one sustainment outcome subscale and seven determinant domain subscales).

Items are rated on a 5-point scale, from 1 = Little or no extent to 5 = Great extent.

Subscale scores are calculated as the average of the items within the subscale, ranging from 1 to 5. Higher scores on all subscales indicate greater agreement with the subscale.

Years 1 and 3
Inner and outer context factors affecting implementation
Tijdsspanne: Yeasr 1 and 3

The Program Sustainability Assessment Tools (PSAT) is an eight-domain, 40-item instrument that assesses a program's capacity for sustainability.

Items are rated on a 7-point scale from 1 = Little or no extent to 7 = A very great extent.

Scores are first averaged within each domain, and an overall sustainability score is calculated by averaging the domain scores (range: 1-7). Higher scores indicate a great level of sustainability capacity.

Yeasr 1 and 3
School implementation climate
Tijdsspanne: Years 1 and 3

The School Implementation Climate Scale (SICS) is a seven-domain, 21-item instrument assessing a school's climate for implementing an evidence-based practice.

Items are rated on a 5-point scale (0 = Not at all; 4 = Very great extent). Scores are first averaged within each domain, and an overall sustainability score is calculated by averaging the domain scores (range: 0-4). Higher scores indicate a more favorable implementation climate.

Years 1 and 3
Condom use skills
Tijdsspanne: Years 1, 2, 3, and 4

The Condom-Use Skills Checklist is an 8-item scale assessing youth's understanding of correct condom use.

Each item is answered True/False. Scores are calculated as the total number of correct responses. Scores range from 0 to 8, with higher scores indicating greater knowledge of condom-use skills.

Years 1, 2, 3, and 4
Self-efficacy
Tijdsspanne: Years 1, 2, 3, and 4

A 5-item self-efficacy for condom use scale will be utilized to assess students' self-perceived ability to use condoms.

Items are rated on a 5-point scale (1 = Strongly disagree; 5 = Strongly agree). Scores are calculated as the average of all items, with a range of 1 to 5. Higher scores indicate greater self-efficacy for condom use.

Years 1, 2, 3, and 4
Condom use
Tijdsspanne: Years 1, 2, 3, and 4

Self-reported condom use in the last sexual intercourse and frequency of condom use in general (always, often, sometimes, or never)

Years 1, 2, 3, and 4

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Youth risk and protective behaviors
Tijdsspanne: Years 1, 2, and 4

The Health-Risk and Protective Factors (HRPF) survey

Years 1, 2, and 4
Youth sensation seeking
Tijdsspanne: Years 1, 2, 3, and 4

The Health-Risk and Protective Factors (HRPF) survey

Years 1, 2, 3, and 4
Neighborhood risk
Tijdsspanne: Years 1, 2, 3, and 4

The Health-Risk and Protective Factors (HRPF) survey

Years 1, 2, 3, and 4

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 oktober 2025

Primaire voltooiing (Geschat)

31 augustus 2029

Studie voltooiing (Geschat)

30 november 2029

Studieregistratiedata

Eerst ingediend

25 augustus 2025

Eerst ingediend dat voldeed aan de QC-criteria

25 augustus 2025

Eerst geplaatst (Werkelijk)

3 september 2025

Updates van studierecords

Laatste update geplaatst (Werkelijk)

24 september 2026

Laatste update ingediend die voldeed aan QC-criteria

23 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • STUDY00002463

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

All IPD collected during the trial, after deidentification.

IPD-tijdsbestek voor delen

Immediately following publication. No end date.

IPD-toegangscriteria voor delen

Anyone who wishes to access the data

IPD delen Ondersteunend informatietype

  • LEERPROTOCOOL
  • SAP
  • ICF
  • MVO

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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