Positive Psychology for ACS Patients: a Factorial Design Study (PEACEIII)
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About
This trial is part of a multi-phase study to develop and test positive psychology (PP) interventions in patients hospitalized for an acute coronary syndrome (ACS).Using a factorial design, the investigators will: (a) assess the optimal frequency of exercise completion, (b) determine the utility of 'booster sessions' after an initial 8-week intervention, and (c) determine the relative merits of utilizing PP exercises alone versus an intervention combining PP with motivational interviewing (MI).
Full description
The investigators have completed the intervention development and pilot phases (PEACE and PEACEII), and are now aiming to optimize our PP intervention for the target population prior to testing it in a randomized, controlled trial.
The investigators will recruit patients from MGH and Brigham and Women's Hospital (BWH) inpatient units who are admitted with a primary cardiac diagnosis of ACS. Following the completion of baseline outcome measures, participants will be randomized to one of eight treatment conditions. All participants will complete PP exercises at least weekly and will speak with a study trainer weekly for eight weeks. Those receiving the PP-only intervention (conditions 1, 2, 5, 6) will speak to a study trainer for 30 minutes each week. Participants in Conditions 3, 4, 7, and 8 will be enrolled in a combined PP plus motivational interviewing (MI)/goal setting program. Accordingly, their weekly phone sessions will focus on the PP program for 15 minutes, then the MI/goal setting program for an additional 15 minutes. These calls will be recorded, and a percentage of calls will be reviewed to ensure that the PP and MI/goal setting portions of the intervention are being delivered as described in the protocol and trainer manual. Half of the participants (conditions 1, 3, 5, 7) will be instructed to perform the PP exercises once per week while the other half (conditions 2, 4, 6, 8) will be asked to perform them once daily. Finally, half of the participants (those in conditions 5-8) will receive three additional 'booster' phone sessions during weeks 10, 12, and 14. These sessions will focus on integrating PP-related skills into daily life. For participants in the PP+MI condition, booster sessions also will focus on maintaining the health behavior changes that they made during the main portion of the study.
The PP exercises used in this study were selected based on their superior performance in our pre-pilot research and others' work: Gratitude for Positive Events (Week 1), Using personal strengths (Week 2), Gratitude letter/Expressions of Gratitude (Week 3), Capitalizing on Positive Events (Week 4), Remembering past success/Remembering daily successes (Week 5), Enjoyable and meaningful activities (Week 6), Humor in everyday life (Week 7), and Performing acts of kindness & Next Steps (Week 8). Participants in conditions 5-8 will have three additional bi-weekly "maintaining your gains" sessions (week 10, 12, and 14) in order to identify favorite exercises, explore the skills derived from doing the exercises, and learn how to integrate the exercises in their daily lives.
For the MI/goal setting portion of the intervention, each session follows the same structure. Study trainers will: (a) ask participants about their health goals, (b) advise them about current health guidelines and/or refer them to their treatment team, (c) assess readiness to set a goal by identifying how important participants feel the goal is, how confident participants are about making a change, and what the participants' pros and cons are for making a change, (d) assist participants in clarifying their goals and problem-solving barriers to reaching those goals, and (e) arrange for the next session by summarizing the participant's plan and scheduling the next session. The structure of the sessions will follow the PP structure according to each condition.
At Weeks 8 and 16, a member of the study staff will call participants to repeat the self-report questionnaires that were administered at baseline. Furthermore, at Weeks 8 and 16, participants will wear an ActiGraph step counter for 10 days as a measure of physical activity. At 3 and 6 months post enrollment, a research coordinator will call participants to ask some brief questions concerning their health, well-being, adherence to health behaviors, and the application of positive psychology and motivational interviewing skills in everyday life.
Enrollment
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Inclusion criteria
- Adult patients admitted to MGH or BWH inpatient units
- Diagnosis of acute coronary syndrome (using established criteria for myocardial infarction or unstable angina; confirmed via medical record and/or patient's treatment team)
- Age 18 or older
- Suboptimal adherence on MOS-SAS: Score < 15 OR Score = 15 with physical activity < 6
Exclusion criteria
- Cognitive deficits, assessed with 6-item screen
- Inability to participate in physical activity
- Medical conditions precluding interviews or likely to lead to death within 6 months
- Inability to read/write in English
Trial design
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128 participants in 8 patient groups
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Data sourced from clinicaltrials.gov
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