Hybrid Type-1 Effectiveness-Implementation Trial of Motivation Matters!

May 11, 2026 updated by: Scott McClelland, University of Washington

Hybrid Type-1 Effectiveness-Implementation Trial of Motivation Matters! A Theory-Based mHealth Intervention to Support Early Antiretroviral Adherence in HIV+ African Women Who Engage in Sex Work

The goal of this clinical trial is to learn if an interactive mHealth intervention will be effective in helping HIV-positive women in high-burden settings who are initiating antiretroviral therapy (ART) take their ART regularly as prescribed, effectively reducing their viral load. The main question it aims to answer is:

- Compared to standard of care, will Motivation Matters! (MM!) be significantly more effective at achieving undetectable viral load in women with HIV by month six.

Researchers will compare the undetectable HIV viral load in women who receive individualized text messages (intervention group) in addition to standard care to those who receive standard care alone (control group).

Participants in the intervention group will receive three messages per week in month one, then two messages per week for the six-month intervention period. Participants will be asked to send a brief, standardized reply to each message, indicating that they are doing well or that they have a question or problem. Regardless of study arm, women will receive ART and counseling consistent with Kenyan guidelines.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

350

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Nairobi, Kenya
        • Recruiting
        • Partner for Health and Development in Africa
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age >18
  • Transactional sex in past 12 months
  • HIV-positive
  • Not currently on ART
  • Enrolled in one of the Sex Workers Outreach Program clinics
  • Has access to mobile phone
  • Willing to receive study text messages
  • Able to read or have someone else read

Exclusion Criteria:

  • Plans to move away in next 6 months
  • Undetectable viral load at baseline
  • Pregnant

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MM! Intervention
Participants in the MM! arm will receive standard care plus the individualized, interactive text message intervention. MM! includes three messages per week in month one, then two messages per week for the six-month intervention period. Messages are personalized based on participants' preferred name, language, religion, having children, and preferred message delivery time. Participants are asked to send a brief, standardized reply to each message, indicating that they are doing well or that they have a question or problem.
MM! includes three messages per week in month one, then two messages per week for the six-month intervention period. Earlier messages include more informational and motivational content, while later messages include more behavioral skills.
No Intervention: Standard Care
Participants in the control arm will receive standard care according to Kenyan guidelines, including clinic-based adherence education and counseling. This includes clinic-based ART adherence education and counseling provided by nurses specializing in HIV care.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Participants with undetectable viral load at 6 months
Time Frame: From enrollment to end of study at 6 months
From enrollment to end of study at 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Raymond S McClelland, MD, University of Washington

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 30, 2026

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

December 31, 2029

Study Registration Dates

First Submitted

December 17, 2024

First Submitted That Met QC Criteria

December 17, 2024

First Posted (Actual)

December 20, 2024

Study Record Updates

Last Update Posted (Actual)

May 12, 2026

Last Update Submitted That Met QC Criteria

May 11, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • STUDY00021169
  • R01MH132536-01A1 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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