Just-In-Time Adaptive Interventions (JITAIs) in a Digital Mental Health Intervention for Middle-Aged and Older Adults With Chronic Pain

April 29, 2026 updated by: Abby Cheng, Washington University School of Medicine

Evaluating and Optimizing Just-In-Time Adaptive Interventions (JITAIs) in a Digital Mental Health Intervention (Wysa for Chronic Pain) for Middle-Aged and Older Adults With Chronic Pain

The purpose of this research study is to refine customized in-app notifications in order to optimize users' experience with a mobile app called Wysa for Chronic Pain. This app is designed to support people who have chronic pain and who also experience symptoms of depression and/or anxiety. This version of the app is not currently available to the public. Eligible participants will be asked to download and use the Wysa for Chronic Pain study app for several weeks, and to use it as they normally would if they were not part of a research study. At the beginning and end of the study period, participants will be asked to complete brief surveys about their mood, pain, physical function, and sleep. Additionally, a few participants will be asked to share their experience with the study app at the end of the research study in a casual interview using a secure audio/video recorded call. Participating in the interview portion is optional.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1000

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Research Coordinator
  • Phone Number: 314-747-8489

Study Locations

  • United States
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Recruiting
        • Washington University in St. Louis School of Medicine

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 45 years or older
  • At least moderately severe depression and/or anxiety symptoms (Patient Health Questionnaire-9 (PHQ-9) and/or Generalized Anxiety Disorder-7 (GAD-7) score ≥ 10)
  • Chronic pain (i.e., pain on most days or every day in the past three months)

Exclusion Criteria:

  • Frequent active suicidal ideation
  • No access to a mobile device
  • Not living in the United States

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Wysa for Chronic Pain + JITAIs

Participants assigned to the experimental arm will receive access to the Wysa for Chronic Pain app, and the novel JITAIs that are being tested in this study will be incorporated into the app experience.

In an initial 4-week pilot trial, participants in this arm will receive the JITAIs every time the decision rule (i.e., "trigger criteria") is satisfied for that respective JITAI. In subsequent 12-week micro-randomized trials, every time the decision rule for a JITAI is satisfied, participants in this arm will be randomized to receive (versus not receive) the respective JITAI.
Other: Just-In-Time Adaptive Interventions (JITAIs)
JITAIs are digital interventions that aim to deliver support to a user when the person is most in need and receptive to the intervention. In this study, multiple JITAIs will be tested and refined through completion of an iterative series of randomized trials that are interspersed with qualitative participant interviews. The purpose of each JITAI under investigation is to improve engagement with the Wysa for Chronic Pain app.
Behavioral: Wysa for Chronic Pain
Wysa for Chronic Pain is an app-based digital mental health intervention that uses a behavioral activation framework and encourages users to work toward pain acceptance. The intervention also includes cognitive behavioral therapy, mindfulness, and sleep tools.
Active Comparator: Wysa for Chronic Pain without JITAIs
Participants assigned to the control arm will receive access to the Wysa for Chronic Pain app, but the novel JITAIs that are being tested in this study will not be incorporated into the app experience.
Behavioral: Wysa for Chronic Pain
Wysa for Chronic Pain is an app-based digital mental health intervention that uses a behavioral activation framework and encourages users to work toward pain acceptance. The intervention also includes cognitive behavioral therapy, mindfulness, and sleep tools.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Engagement
Time Frame: Each JITAI has a different target engagement time interval. e.g., varying from 24 hours to 7 days.
The primary outcome for each JITAI is the between-group difference in engagement with Wysa for Chronic Pain during the JITAI's target engagement time interval. Engagement is operationalized as interaction(s) with the digital mental health intervention and is automatically captured throughout the study by the intervention's technical infrastructure. It is not self-reported.
Each JITAI has a different target engagement time interval. e.g., varying from 24 hours to 7 days.

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Patient Health Questionnaire Anxiety-Depression Scale (PHQ-ADS)
Time Frame: Baseline, Week 4, Week 8 (Not in pilot trial), Week 12 (Not in pilot trial)
The PHQ-ADS will be collected as the distal clinical outcome. It is a16-item self-reported measure that is used to assess depression and anxiety symptoms. Scores range from 0 to 48, and higher scores indicate more distress.
Baseline, Week 4, Week 8 (Not in pilot trial), Week 12 (Not in pilot trial)

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Washington University School of Medicine

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institute of Mental Health (NIMH)
Duke University
Wysa

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Abby L. Cheng, MD, MPHS, Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 2, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 5, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 14, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 18, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 5, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 29, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Pro00085039
  • R01MH131989 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified participant-level data will be shared through the NIMH Data Archive (NDA). Access to the dataset will be managed by the NDA.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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