Clinical Trial

Call for Life: Exploring mHealth Solutions for Enhancing Childhood Vaccinations Among Displaced Children in Conflict-affected Settings of Nigeria

Study acronym: Call 4 Life

Enrolling by Invitation

Record status

This record was last updated September 4, 2025 (before its estimated November 24, 2025 completion). Its status may not reflect the trial's current state.

Summary

This study evaluates the feasibility and preliminary impact of Call for Life, an mHealth platform aimed at increasing childhood vaccination coverage among internally displaced persons in Borno State, Nigeria. The platform uses an interactive voice response (IVR) system to deliver automated vaccination reminders, follow up on reported side effects, and provide health messages in English and local languages. A mixed-methods design is used to assess feasibility, interaction rates, and early effects on vaccine uptake. Findings will inform policymakers and humanitarian actors on the potential of mobile technology to strengthen immunization delivery in conflict-affected, resource-limited settings.

Trial Details

NCT Number	NCT07154836
Lead Sponsor	University of Cambridge Collaborators: University of Maiduguri, Infectious Disease Institute at Makerere University
Conditions	Access to Immunization
Enrollment	366 participants
Start Date	2025-06-24
Primary Completion	2025-11-24 (estimated)
Study Completion	2025-12-30 (estimated)
Updated on ClinicalTrials.gov	2025-09-04