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Bærekraft og presisjonsforebyggende prosjekt

23. september 2026 oppdatert av: Bo Wang, University of Massachusetts, Worcester

Nasjonal implementering av et evidensbasert HIV-forebyggingsprogram: Multilevel Scale-Up Strategies and Precision Prevention

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.

Studieoversikt

Detaljert beskrivelse

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

Intervensjonell

Registrering (Antatt)

3705

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

      • Nassau, Bahamas
        • Rekruttering
        • HIV/AIDS Office, FOY program
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

10 år til 60 år (Barn, Voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

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.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Sekvensiell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 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.

Eksperimentell: 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.

Eksperimentell: 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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Fidelity of Implementation
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Youth risk and protective behaviors
Tidsramme: Years 1, 2, and 4

The Health-Risk and Protective Factors (HRPF) survey

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

The Health-Risk and Protective Factors (HRPF) survey

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

The Health-Risk and Protective Factors (HRPF) survey

Years 1, 2, 3, and 4

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Bo Wang, PhD, UMass Chan Medical School

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. oktober 2025

Primær fullføring (Antatt)

31. august 2029

Studiet fullført (Antatt)

30. november 2029

Datoer for studieregistrering

Først innsendt

25. august 2025

Først innsendt som oppfylte QC-kriteriene

25. august 2025

Først lagt ut (Faktiske)

3. september 2025

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

24. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

23. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • STUDY00002463

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

All IPD collected during the trial, after deidentification.

IPD-delingstidsramme

Immediately following publication. No end date.

Tilgangskriterier for IPD-deling

Anyone who wishes to access the data

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE
  • ICF
  • CSR

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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