Improving Childhood Immunization in Lagos Slums Through Participatory Learning and Community Engagement (PLCE): A Cluster Randomized Trial

Evaluation of the Effectiveness of Participatory Learning and Community Engagement (PLCE) in Increasing Immunization Coverage Among Children Aged 0–23 Months in Urban Slums of Lagos State, Nigeria: A Parallel-Arm Cluster Randomized Controlled Trial with Mixed-Methods Evaluation

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR202601537891825

Enrollment

374

Registered

2026-01-13

Start date

2026-01-15

Completion date

Unknown

Last updated

2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vaccine Preventable Diseases

Interventions

Participatory Learning and Community Engagement

Routine Immunization Only

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Inclusion Criteria: Children aged 0–23 months residing in the selected urban slums of Lagos State. Primary caregivers (parents or guardians) aged 18 years or older responsible for child immunization decisions. Residents of the selected slum community for at least six months prior to baseline. Willingness to participate and ability to provide informed consent.

Exclusion criteria

Exclusion criteria: **Exclusion Criteria:** 1. Children with severe congenital conditions or medical contraindications to vaccination. 2. Temporary residents (less than six months) or individuals planning to relocate within six months. 3. Caregivers who decline or are unable to provide informed consent, or who are directly involved in immunization service provision (e.g., vaccinators or health workers). 4. Caregivers of children older than 23 months.

Design outcomes

Primary

Measure	Time frame
Primary Outcome: Clinical/Health outcome – Full immunization coverage among children aged 0–23 months.	—

Secondary

Measure	Time frame
Secondary Outcomes: Behavioral/Knowledge outcomes: Caregiver knowledge, attitudes, and practices (KAP) related to immunization. Process/Implementation outcomes: Community engagement score, participation in PLCE activities. Health service outcomes: Timeliness of vaccination, dropout rates from multi-dose vaccine series.	—

Countries

Nigeria

Contacts

Public ContactMichael Olaniyi

Professor

funsola@gmail.com2349165908106

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026