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ClinicalTrials.gov public records Last synced May 22, 2026, 3:02 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Psychology, Positive Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy
Interventions
Digital toolkit, Mental Health America Resources
Behavioral
Lead sponsor
Flourish Science, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
9
States / cities
Berkeley, California • Los Altos Hills, California • Orange, California + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Hyperlipemia, Hypertension, Type2 Diabetes
Interventions
Text Message Intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
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Conditions
Caregiver, Hematologic Malignancy
Interventions
Positive Psychology Intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Congestive Heart Failure, Emotions, Patient Compliance
Interventions
PP-based health behavior intervention, MI-based educational control condition
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 29, 2021 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Positive Affect, Education
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
13 Years to 17 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced May 22, 2026, 3:02 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Chronic Pain, Depression, PTSD, Injuries, Illness, Chronic, Physical Disability
Interventions
Resilience and Well-Being Program
Behavioral
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cancer
Interventions
A positive psychology workshop
Behavioral
Lead sponsor
University of Denver
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 5, 2023 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional
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Conditions
Bipolar Disorder, Depression
Interventions
Positive psychology intervention, Recollection intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 4, 2017 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Stroke, Depression, Depressive Symptoms, Post-stroke Depression
Interventions
Dyadic (couples-based) positive psychology intervention
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 18, 2020 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Positive Affect + Education, Education
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
13 Years to 17 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced May 22, 2026, 3:02 AM EDT
Not listed Not applicable Interventional
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
PP-MI Intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Revere, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2022 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Mental Illness, Tobacco Dependence
Interventions
Individual and Group Treatment for Smoking Cessation
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
21 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Manchester, New Hampshire
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced May 22, 2026, 3:02 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Acute Coronary Syndrome, Physical Inactivity
Interventions
Positive Psychology + Motivational Interviewing
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 95 Years
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Positive Psychology, Control Condition
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2016 · Synced May 22, 2026, 3:02 AM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Positive Thinking, Psychology, Positive, Resilience, Psychological
Interventions
Three Good Things (3GT) Positive Psychology journaling activity
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bloomer, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 9, 2024 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Positive psychology
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced May 22, 2026, 3:02 AM EDT
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Hematologic Malignancy, Caregiver
Interventions
PATH-C
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Acute Coronary Syndrome
Interventions
Positive psychology intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 23, 2017 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Positive Psychology
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 12, 2016 · Synced May 22, 2026, 3:02 AM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Positive Psychological Group Treatment, Traditional Behavioral Health Treatment
Behavioral
Lead sponsor
Fort Belvoir Community Hospital
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Fort Belvoir, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Bariatric Surgery
Interventions
Positive Psychology-Motivational Interviewing, Physical Activity Education Control
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced May 22, 2026, 3:02 AM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Pediatric Surgical Procedures
Interventions
Behavioral Treatment
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
12 Years to 99 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Ann Arbor, Michigan • Brighton, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Intervention arm: PP-MI
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced May 22, 2026, 3:02 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Obesity, Physical Activity
Interventions
PPPA, PA
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 3, 2023 · Synced May 22, 2026, 3:02 AM EDT