NCT05412862

Brief Summary

The focus of this study is to test the efficacy of a 12-week, remotely delivered, positive-psychology-motivational interviewing (PP-MI) intervention, with additional twice weekly text messages for a total of 24 weeks (with interactive, algorithm-driven, goal-focused text messages in the final 12 weeks), compared to post-acute coronary syndrome (ACS) treatment as usual, in a randomized trial of 280 post-ACS patients with low baseline physical activity.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
280

participants targeted

Target at P75+ for not_applicable

Timeline
21mo left

Started Sep 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress70%
Sep 2022Mar 2028

First Submitted

Initial submission to the registry

May 25, 2022

Completed
15 days until next milestone

First Posted

Study publicly available on registry

June 9, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

September 12, 2022

Completed
5.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2028

Last Updated

April 20, 2026

Status Verified

April 1, 2026

Enrollment Period

5.6 years

First QC Date

May 25, 2022

Last Update Submit

April 15, 2026

Conditions

Keywords

Positive psychologyPhysical ActivityMotivational InterviewingAdherence

Outcome Measures

Primary Outcomes (1)

  • Change from Baseline Moderate to Vigorous Physical Activity (MVPA) at 24 weeks

    MVPA will be measured via an accelerometer and recorded in mean minutes/day.

    Measured for 7 days at baseline and 24 weeks

Secondary Outcomes (2)

  • Change in Light Intensity Activity

    Measured for 7 days at baseline, 12 weeks, 24 weeks, and 48 weeks

  • Change in positive affect (Positive and Negative Affect Schedule [PANAS] positive affect items)

    Baseline, 12 weeks, 24 weeks, 48 weeks

Other Outcomes (27)

  • Change from Baseline Moderate to Vigorous Physical Activity (MVPA) at 12 and 48 weeks

    Measured for 7 days at baseline, 12 weeks, and 48 weeks

  • Change in Sedentary time

    Measured for 7 days at baseline, 12 weeks, 24 weeks, and 48 weeks

  • Change in optimism (Life Orientation Test - Revised [LOT-R])

    Baseline, 12 weeks, 24 weeks, 48 weeks

  • +24 more other outcomes

Study Arms (2)

Positive Psychology + Motivational Interviewing

EXPERIMENTAL

Each week, participants in the PP-MI intervention group will complete a PP activity and work towards a physical activity goal, then complete a phone session with a study trainer. Each phone session will include PP and goal setting portions. In the PP portion, the study trainer will (a) review the week's PP exercise, (b) discuss the rationale of the next week's PP exercise through a guided review of the PP-MI manual, and (c) assign the next week's PP exercise. In the goal-setting portion, the trainer will (a) review the participant's physical activity goal from the prior week, (b) discuss techniques for improving physical activity (e.g. tracking activity), and (c) help the participant to set a physical activity goal for the next week. Participants also will receive supplemental text messages throughout the 12 weeks of the intervention and during the initial follow-up period (Week 13-24).

Behavioral: Positive Psychology + Motivational Interviewing

Treatment as Usual

NO INTERVENTION

Participants in the treatment as usual (TAU) arm will not receive any specific intervention, though they will be free to receive any post-ACS treatment.

Interventions

The 12-week PP-MI intervention focuses on enhancing well-being (through PP) and increasing physical activity (through MI). Each week, participants will complete a PP activity and work towards a physical activity goal, then complete a phone session with a study trainer. The PP portion of the program will focus on the cultivation of well-being through the performance of easy-to complete activities (e.g., using a strength in a new way) and review of the positive feelings they generate. The MI portion of the program will focus on assisting participants to improve physical activity levels, resolve ambivalence to behavior change, set realistic physical activity goals, problem-solve barriers, and identify resources to complete behavior change. Finally, participants will receive twice weekly text messages (for 24 weeks) to encourage completion of PP activities and engagement in physical activity.

Positive Psychology + Motivational Interviewing

Eligibility Criteria

Age18 Years - 95 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ACS (myocardial infarction or unstable angina)
  • Suboptimal physical activity (score of \< 6 on the Medical Outcomes study Specific Adherence Scale item related to physical activity)

You may not qualify if:

  • Cognitive deficits (assessed via a 6-item cognitive screening tool)
  • Medical conditions likely to lead to death within 6 months.
  • Moderate-severe depression (Patient Health Questionnaire-9 \[PHQ-9\] score ≥15)
  • Inability to participate in physical activity due to another medical condition (e.g., arthritis)
  • Inability to read, write, or speak in English
  • Inability to receive text-messages
  • Current participation in another intervention or program that has been designed to promote well-being or physical activity

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

RECRUITING

MeSH Terms

Conditions

Acute Coronary SyndromeSedentary BehaviorMotor Activity

Interventions

Psychology, PositiveMotivational Interviewing

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesBehavior

Intervention Hierarchy (Ancestors)

PsychologyBehavioral SciencesBehavioral Disciplines and ActivitiesDirective CounselingCounselingMental Health ServicesHealth ServicesHealth Care Facilities Workforce and Services

Study Officials

  • Jeff C Huffman, M.D.

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jeff C Huffman, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Participants and treating study staff will be aware of the participant's treatment condition. However, follow-up assessments will be performed by a study staff member that is masked to the participant's treatment condition.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized, single-blinded, controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Cardiac Psychiatry Research Program

Study Record Dates

First Submitted

May 25, 2022

First Posted

June 9, 2022

Study Start

September 12, 2022

Primary Completion (Estimated)

March 31, 2028

Study Completion (Estimated)

March 31, 2028

Last Updated

April 20, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

To promote sharing of study data with other researchers, we will create a deidentified study dataset. We will include both item-level and summary scores for each scale and will include data from the baseline, 12-week, 24-week, and 48-week time points.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
This information will be shared prior to the end of the study funding period.
Access Criteria
Investigators who are interested in obtaining access to this information will be asked to submit a request to the principal investigator outlining the proposed use of the data and would need to agree to certain conditions (e.g., not attempting to identify individual participants, destroying data once the use of the data is complete) prior to obtaining access.

Locations