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Bariatric SurgeryGOALSNCT04868032

Gaining Optimism After Weight Loss Surgery (GOALS) II

A study testing Positive Psychology-Motivational Interviewing in people with Bariatric Surgery, run by Massachusetts General Hospital at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This randomized controlled trial examines the feasibility, acceptability, and preliminary impact of an adapted positive psychology-motivational interviewing (PP-MI) intervention for physical activity among patients who have recently undergone bariatric surgery compared to an enhanced usual care control. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Bariatric Surgery
What is being tested?
Positive Psychology-Motivational Interviewing
Could I receive a placebo?
No, everyone receives an active treatment
How many people
58 participants
Where
1 siteUnited States
Study dates
1 Jul 2022to 3 Jun 2025
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult (age 18+)
  • History of bariatric surgery (gastric bypass or sleeve gastrectomy) at one of two academic medical centers within the past 6-12 months
  • Interest in increasing physical activity
  • Low physical activity, defined as <200 minutes/week self-reported moderate- to-vigorous physical activity
  • Access to telephone for study sessions
  • Able to read and speak English

Who cannot join

  • Cognitive deficits precluding participation or informed consent
  • Illness likely to lead to death in the next 6 months
  • Inability to be physically active (e.g., severe arthritis)
  • Participation in another program targeting physical activity besides their standard offerings at the surgery center.
  • Severe psychiatric condition limiting ability to participate (e.g., psychosis, active substance use disorder)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

Official title: Gaining Optimism After Weight Loss Surgery (GOALS) II: Randomized Controlled Trial of a Positive Psychology-based Intervention to Increase Physical Activity After Bariatric Surgery

This randomized controlled trial examines the feasibility, acceptability, and preliminary impact of an adapted positive psychology-motivational interviewing (PP-MI) intervention for physical activity among patients who have recently undergone bariatric surgery compared to an enhanced usual care control.

Read the detailed description

This study will test a positive psychology-motivational interviewing (PP-MI) intervention for physical activity promotion in patients who have had bariatric surgery within the past 6-12 months compared to an enhanced usual care control. The investigators will enroll and randomize 58 participants. Study participation includes attending four study visits (two at baseline, one at 10 weeks, and one at 24 weeks). Participants will be randomized either to a 10-week physical activity intervention that includes once-weekly phone calls, a written manual, and a Fitbit activity tracker, or provision of the Fitbit alone. Primary outcomes include the feasibility and acceptability of the intervention. Secondary outcomes include changes in physical activity and other psychological, behavioral, and physiological outcomes at 10 and 24 weeks compared to the control.

Being tested
Positive Psychology-Motivational Interviewing, Physical Activity Education Control
Keywords
Positive Psychology, Motivational Interviewing, Physical Activity
Medical subject headings
Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Positive Psychology-Motivational InterviewingBehavioural

    Participants will receive a written treatment manual with detailed information about each topic. The intervention consists of 10 weekly phone sessions (30 minutes each). Each session includes a new psychological skill designed to increase positive emotions experienced during physical activity, a motivational skill designed to boost physical activity, and setting a physical activity goal for the next week using information from the Fitbit. A motivational interviewing approach will be used for all topics.

  • Physical Activity Education ControlBehavioural

    Participants randomized to this condition will be provided with a Fitbit, and will be mailed educational materials about physical activity at 4 time points throughout the intervention period. They will not receive a manual or phone calls with an interventionist.

Study groups in NCT04868032
Study groupRoleWhat they receive
Positive Psychology-Motivational Interviewing InterventionExperimentalParticipants will receive a written treatment manual with detailed information about each topic. The intervention consists of 10 weekly phone sessions (30 minutes each). Each session includes a new psychological skill designed to increase positive emotions experienced during physical activity, a motivational skill designed to boost physical activity, and setting a physical activity goal for the next week using information from the Fitbit. A motivational interviewing approach will be used for all topics.
Receives: Behavioral: Positive Psychology-Motivational Interviewing
Physical Activity Education ControlActive comparatorParticipants randomized to this condition will be provided with a Fitbit, and will be mailed educational materials about physical activity at 4 time points throughout the intervention period. They will not receive a manual or phone calls with an interventionist.
Receives: Behavioral: Physical Activity Education Control

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Intervention Sessions Completed

    Feasibility will be measured by examining the number of completed intervention sessions for individuals randomized to the PP-MI intervention. The intervention will be considered feasible if at least 7/10 sessions are completed, on average.

    Measured: 10 weeks

  2. Intervention Acceptability

    After each of the 10 weekly intervention sessions, participants will rate that week's PP and goal-setting topics on how easy they were to complete and how helpful they were. Ratings will be measured on a 10-point Likert scale (1=very difficult/not at all helpful, 10=very easy/very helpful). Ratings for each category (e.g., ease of PP exercises) will be averaged across the 10 sessions to calculate a single value for that participant. The intervention will be considered acceptable if average ease and utility ratings are at least 7/10.

    Measured: 10 weeks

Secondary outcomes (24)
  1. Change in Moderate to Vigorous Physical Activity (MVPA)

    We will use ActiGraph GT3X-BT accelerometers to objectively measure physical activity for 1 week at each assessment. MVPA will be measured in minutes/week.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  2. Change in Steps

    Measured by Actigraph accelerometer, in number of steps per day.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  3. Change in Light Physical Activity

    Measured by Actigraph accelerometer, in minutes per day.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  4. Change in Positive Affect

    The positive affect items on the Positive and Negative Affect Schedule (PANAS), a well-validated scale used in other intervention trials and in patients with medical illnesses, will be used to measure positive affect (Range: 10-50). Higher scores indicate higher levels of positive affect.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  5. Change in Optimism

    The Life Orientation Test-Revised (LOT-R) is a well-validated 6-item instrument used to measure dispositional optimism (Range: 0-24). Higher scores indicate higher levels of optimism.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  6. Change in Depressive Symptoms

    The Hospital Anxiety and Depression Scale (HADS)-depression subscale will be used to measure depression. This is a well-validated scale with few somatic symptom items that can confound mood/anxiety assessment in medically-ill patients (Range: 0-21). Higher scores indicate higher levels of depression.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  7. Change in Anxiety

    The Hospital Anxiety and Depression Scale (HADS)-anxiety subscale will be used to measure anxiety. This is a well-validated scale with few somatic symptom items that can confound mood/anxiety assessment in medically-ill patients (Range: 0-21). Higher scores indicate higher levels of anxiety.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  8. Change in Exercise Identity

    The Exercise Identity Scale (EIS) is a well-validated, 9-item measure that will be used to assess exercise identity (Range: 9-63). Higher scores indicate stronger exercise identity.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  9. Change in General Self-Efficacy

    Self-efficacy will be measured using the General Self Efficacy scale (GSE), a validated measure of self-efficacy, given its links to improved adherence. The range for total scores is 10-40 with higher scores indicate greater self-efficacy. Mean total scores are reported.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  10. Change in Exercise-specific Self-efficacy

    Exercise-specific self-efficacy will be measured by the Self-Efficacy for Exercise scale (SEE), a validated scale which assesses self-efficacy for exercise (Range: 0-90). Higher scores indicate higher self-efficacy.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  11. Change in Internalized Weight Bias

    The Weight Bias Internalization Scale - Modified (WBIS-M) is a well-validated, 11-item measure that will be used to measure internalized weight bias (Range: 1-7). Higher scores indicate greater internalized weight bias.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  12. Change in Bariatric Surgery-specific Diet and Vitamin Adherence

    The Bariatric Surgery Self-Management Questionnaire (BSSQ) is a validated measure that will be used to assess adherence to diet and vitamin recommendations after bariatric surgery. The range of scores is 0-66 with higher scores indicating better adherence to diet and vitamin recommendations. Mean total scores are reported.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  13. Change in Self-Reported Physical Activity

    The International Physical Activity Questionnaire (IPAQ) - Short Form is a well-validated 7-day physical activity recall assessment for physical activity. Activity will be measured by the number of MET-minutes of moderate or greater activity per week.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  14. Change in Body Mass Index

    Body mass index (kilograms/meters squared) will be calculated with body weight and height measured on a calibrated scale.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  15. Change in Systolic Blood Pressure (Millimeters of Mercury)

    Blood pressure will be measured by a nurse.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  16. Change in Aerobic Capacity and Endurance

    The 6 Minute Walk Test is a sub-maximal exercise test used to assess aerobic capacity and endurance. The distance covered over a time of 6 minutes is used as the outcome by which to compare changes in performance capacity.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  17. Change in Body Composition

    The measurement of body fat in relation to lean body mass will be measured using bio-electrical impedance.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  18. Change in A1C

    Hemoglobin A1C will be measured via blood draw.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  19. Change in HDL Cholesterol

    Lipids (HDL, LDL, Triglyceride) will be measured via blood draw.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  20. Change in Inflammation

    C-reactive protein will be measured via blood draw as a measure of inflammation.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  21. Change in Physical Activity Enjoyment

    Self-efficacy will be measured using the Physical Activity Enjoyment Scale (PACES), a validated measure of enjoyment during exercise. The range of total scores is 18-126 with higher scores indicating greater enjoyment during exercise. Mean total scores are reported.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  22. Change in Diastolic Blood Pressure (Millimeters of Mercury)

    Blood pressure will be measured by a nurse.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  23. Change in LDL Cholesterol

    Lipids (HDL, LDL, Triglyceride) will be measured via blood draw.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  24. Change in Triglycerides

    Lipids (HDL, LDL, Triglyceride) will be measured via blood draw.

    Measured: Baseline, 10-Week Follow-Up, 24-Week Follow-Up

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Apr 2021
  2. Study start1 Jul 2022
  3. Primary completion3 Feb 2025
  4. Study completion3 Jun 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04868032
Sponsor's protocol ID
2021P001006b
Other IDs
5K23HL148017
Acronym
GOALS
Status last verified
Mar 2026
First submitted
28 Apr 2021
Last updated
27 Mar 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Feig EH, Harnedy LE, Thorndike AN, Psaros C, Healy BC, Huffman JC. A Positive Emotion-Focused Intervention to Increase Physical Activity After Bariatric Surgery: Protocol for a Pilot Randomized Controlled Trial. JMIR Res Protoc. 2022 Oct 6;11(10):e39856. doi: 10.2196/39856.

    PubMed 36201380

Questions about this trial

What is this clinical trial studying?

A study testing Positive Psychology-Motivational Interviewing in people with Bariatric Surgery, run by Massachusetts General Hospital at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Mar 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Intervention Sessions Completed (time frame: 10 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04868032, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Mar 2026.

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