NCT06683664

Brief Summary

The goal of this implementation research study is to understand whether a package of community-based interventions can increase access to and uptake of the human papillomavirus (HPV) vaccine among very young adolescent girls and boys in the North and Far North Regions of Cameroon. The main questions this study aims to answer are:

  • Can a package of community-based interventions increase delivery of routine HPV vaccination to boys and girls aged 9-13 in Cameroon's North and Far North Regions?
  • What is the acceptability, feasibility, cost, and potential for maintenance and scale of an integrated health intervention to deliver routine HPV vaccination in Cameroon? To evaluate the effectiveness of the intervention, researchers will compare HPV vaccination within regions where the new intervention model is being implemented (intervention areas) to regions where the new routine HPV vaccination delivery model is not being implemented (comparison areas) for approximately 1 year before the new intervention model is implemented and for approximately 9 months after the start of implementation to compare changes over time and between intervention and comparison areas. The study will evaluate the effect of the intervention on HPV vaccination delivery using routine health facility data. To understand acceptability, feasibility, implementation, and potential for scale, the study will enroll participants including health officials and providers, adolescents girls receiving HPV vaccination and other services in intervention areas, and their parents/caregivers. The study will be conducted in two phases, with the first phase focused on gathering formative data through interviews with key informants. This data will be used to inform the design of the intervention, which will be implemented and evaluated in phase 2. Only phase 1 of this study protocol has been currently approved. In phase 1, key informant interview participants will be asked to participate in a an interview to discuss HPV vaccination services and their perspectives on how to integrate HPV vaccination within existing community-based and health facility structures and programs. Key informants will include government officials, health program implementers, representatives from non-government organizations working on HPV vaccine delivery, and healthcare providers, as well as community leaders including school and religious leaders.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2024

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2024

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

November 8, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 12, 2024

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

November 12, 2024

Status Verified

November 1, 2024

Enrollment Period

1.1 years

First QC Date

November 8, 2024

Last Update Submit

November 8, 2024

Conditions

Keywords

Implementation ScienceCameroonImplementation ResearchMixed Methods

Outcome Measures

Primary Outcomes (1)

  • HPV vaccine delivery

    Number of HPV vaccinations provided to adolescents aged 9-13 years old per facility per month

    The primary outcome measure is an aggregated, facility-level outcome which will be assessed at the facility-month level using aggregated routine service statistics data over a period of up to 36 months

Study Arms (2)

Integrated health service delivery for very young adolescents

EXPERIMENTAL

The intervention will be implemented in 90 non-randomly selected health facilities and their catchment areas located in the North and Far North Regions of Cameroon. In intervention areas, the intervention (a complex, supply- and demand-side implementation model with the primary objective of increasing access to HPV vaccination and other health services for very young adolescents girls and boys \[aged 9-13 years\]) will be developed in the study's phase 1, a rapid formative phase. It is anticipated that the intervention will include supply- and demand-side components, such as household mobilization by community health workers engaged through the exiting Programme d'Accès aux Services de Santé de la Reproduction (PASSR), strengthened linkages between households and health facilities, and routinized HPV and adolescent health service delivery within communities.

Other: Integrated health service delivery for very young adolescents

Standard of care

NO INTERVENTION

90 non-randomly selected health facilities and their catchment areas supported by the Programme d'Accès aux Services de Santé de la Reproduction (PASSR) have been selected as concurrent comparison areas. These sites will conduct HPV vaccination (and other other adolescent health service delivery) through the standard-of-care procedures.

Interventions

The proposed HPV-PASSREV intervention will aim to increase adolescent-centered access to HPV vaccination and other very young adolescent health services through an integrated, routine, community-based delivery model that incorporates household mobilization efforts with enhanced service delivery at the health facility and community levels.

Integrated health service delivery for very young adolescents

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Key informant identified by study and implementation teams (purposive sampling by key informant type)

You may not qualify if:

  • Does not provide written informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Officials

  • Wilfred Mbacham, ScD, DS

    Fobang Institutes for Innovations in Science and Technology

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Claire W Rothschild, PhD, MS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Cluster-assigned intervention treatment with concurrent comparison clusters
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 8, 2024

First Posted

November 12, 2024

Study Start

November 1, 2024

Primary Completion

December 1, 2025

Study Completion

December 1, 2025

Last Updated

November 12, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will share

The primary aim of this study is to evaluate the impact of the intervention on delivery of HPV vaccinations to adolescents in Cameroon. No IPD will be used to evaluate the primary outcome for the effectiveness component of this study; rather, the effectiveness component will be assessed using aggregated service statistics data, which is inherently de-identified. These data will be made publicly available, as will other primary data collected in the study (quantitative exit survey data, which is an anticipated activity under phase 2 which has not yet been approved). Qualitative data, particularly from key informants, may be more difficult to completely de-identify; therefore, the investigators will make the decision during inspection of qualitative interview transcripts as to whether all qualitative data can be de-identified adequately to make pubicly available.

Shared Documents
STUDY PROTOCOL, ICF