Mobile and Scalable Innovations for Measles Immunization: a Randomized Controlled Trial

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

537 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-12-06

Study Completion Date

2017-04-04

Brief Summary

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The overall objective is to test the impact of short message service (SMS) reminders, with or without unconditionally provided mobile-money incentives, can improve measles vaccination coverage in rural western Kenyan infants.

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Detailed Description

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Primary Objective The primary objective is to determine if text message reminders, with or without unconditionally provided incentives, can increase the proportion of children who receive measles vaccination by 15% at age ten months as compared to control arm children.

Secondary Objectives

1. To conduct a secondary analysis of the primary outcome using survival analysis and time-to-immunization curves.
2. To determine if there is a differential effect on measles vaccine coverage based on mobile phone ownership and distance to the clinic.
3. To examine the effect of the interventions on measles coverage measured at twelve months of age.
4. To examine the completeness and costs of identifying children through a CHW approach versus the standard HDSS approach.
5. To evaluate the effect of the interventions on coverage of second dose of measles vaccine at 24 months. This secondary objective is contingent on receiving additional funding.

Conditions

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Measles

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

SINGLE

Investigators

Study Groups

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Control

All enrolled caregivers will receive a congratulatory text message at enrollment which indicates who is conducting the study and which also includes a general-health related saying, "The greatest wealth is health". No additional text messages or travel subsidies will be sent to caregivers randomized to the control arm.

Group Type NO_INTERVENTION

No interventions assigned to this group

SMS reminder

At enrollment, participants will be told to expect 2 SMS reminders for measles vaccine; first, at 3 days before and second, on the day before the scheduled measles vaccine at 9 months of age. At most, enrolled caregivers will receive three text messages (two for the measles vaccine and one for welcoming mother to the study). Text messages will be sent in English, Kiswahili or Dholuo language, according to the mother's preference. These reminders will have information about the child's scheduled immunization date.

Group Type EXPERIMENTAL

SMS reminder

Intervention Type BEHAVIORAL

Caregivers will receive two text message reminders for their child's measles immunization scheduled for 9 months of age

SMS reminder + Unconditional Incentive

Participants will receive SMS reminders as described in the SMS reminder arm. Additionally, participants will be sent a 150 Kenyan Shillings (KES) incentive to the mobile phone number they provided at enrollment. The incentive will be delivered three days before the child turns nine months (i.e. sent on the same day as the first SMS reminder). Caregivers will receive the mobile-money incentive unconditionally. The intent of the incentive is to help offset the costs associated with transportation to the clinic. The transaction costs associated with mobile-money transactions will be borne by the study such that mothers will receive the full 150 KES.

Group Type EXPERIMENTAL

SMS reminder

Intervention Type BEHAVIORAL

Caregivers will receive two text message reminders for their child's measles immunization scheduled for 9 months of age

Unconditional Incentive

Intervention Type BEHAVIORAL

A mobile-money incentive in the amount of 150 Kenyan Shillings will be transferred to the enrolled caregiver's mobile phone when the child reaches nine months of age

Interventions

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SMS reminder

Caregivers will receive two text message reminders for their child's measles immunization scheduled for 9 months of age

Intervention Type BEHAVIORAL

Unconditional Incentive

A mobile-money incentive in the amount of 150 Kenyan Shillings will be transferred to the enrolled caregiver's mobile phone when the child reaches nine months of age

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Caregiver of infant aged 6-8 months at time of enrollment
* Self-reported resident of one of the study villages; where the definition of a resident is defined by caregiver
* Willing to sign informed consent for the study

Exclusion Criteria

* Child of enrolled caregiver has already received one dose of measles vaccine, not including any supplemental measles vaccines
* Caregiver plans to move away in the next 6 months

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes