# Tunatar da ni. The Immunization Reminder and Information SMS System (IRISS)

> **NCT04001322** · NA · COMPLETED · sponsor: **Johns Hopkins Bloomberg School of Public Health** · enrollment: 21 (actual)

## Conditions studied

- Low Immunization Uptake

## Interventions

- **OTHER:** Community engagement
- **OTHER:** IRISS advert for opt-in
- **OTHER:** One-time SMS broadcast on immunization
- **OTHER:** Scheduled weekly SMS reminder of health facility RI schedule to community leaders
- **OTHER:** Scheduled bi weekly RI messages to community leaders
- **OTHER:** Responsive individualized child vaccination schedule reminder to caregivers who opt-in
- **OTHER:** Responsive one-time SMS message on hand washing to those that erroneously register on IRISS

## Key facts

- **NCT ID:** NCT04001322
- **Lead sponsor:** Johns Hopkins Bloomberg School of Public Health
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-06-15
- **Primary completion:** 2020-10-30
- **Final completion:** 2020-11-29
- **Target enrollment:** 21 (ACTUAL)
- **Last updated:** 2022-10-07

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04001322

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04001322, "Tunatar da ni. The Immunization Reminder and Information SMS System (IRISS)". Retrieved via AI Analytics 2026-05-29 from https://api.ai-analytics.org/clinical/NCT04001322. Licensed CC0.

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