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Developing Affective HeaLth to Improve Adherence to Health Behaviors in Diabetes (DAHLIA II)

Developing Affective HeaLth to Improve Adherence to Health Behaviors in Diabetes (DAHLIA II)

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04068805
Enrollment
14
Registered
2019-08-28
Start date
2020-08-31
Completion date
2022-07-12
Last updated
2022-07-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2

Brief summary

Participants will be randomly assigned to either a positive affect skills intervention or a psychoeducation control group and assessed with questionnaires before, during, and after the 8-week program, as well as at 3 months, 6 months, and 12 months after the end of the program.

Detailed description

Participants will be randomly assigned to either the Diabetes positive affect skills intervention or a psychoeducation control group. Both programs last 8 weeks and take place on a simplified research version of the Happify platform. Participants assigned to the diabetes positive affect program will have full access to Happify, with a track that focuses on building skills for greater happiness, reducing stress, and coping better with diabetes displayed as the feature track. Participants assigned to the psychoeducation (control) condition will be asked to complete a series of polls on various wellbeing topics, and then provided with some social comparison data about how their responses compared with the responses of other users, as well as information about why the well being topic is important. Participants will be asked to complete questionnaires before, during, and after the 8-week program as well as 3 months, 6 months and 12 months follow-up questionnaires after the program is complete, at which point study participation will end.

Interventions

BEHAVIORALHappify

An online platform for conveying techniques from positive psychology, cognitive-behavioral therapy, and mindfulness-based stress reduction.

Sponsors

Northwestern University
CollaboratorOTHER
Happify Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

Users are randomly assigned between arms after completing baseline assessment and stay in that arm for the duration of the study.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adults with Type 2 Diabetes * Elevated HbA1c levels (7 or greater) * No prior experience on the Happify platform (new user registration) * PHQ-8 score of 13 or higher * US resident * Under the care of a medical professional for the treatment of their diabetes * Be willing and able to obtain HbA1c every 3 months

Exclusion criteria

* none

Design outcomes

Primary

MeasureTime frameDescription
Change in self-reported HbA1C levelBaseline, 3 weeks post-intervention (day 83), 3 weeks after 3-month post intervention (day 173), 3 weeks after 6 month post intervention (day 263), and 12 months post intervention (day 416)1-item self-reported measure of Hemoglobin A1C (HbA1C) level, What was your most recent HbA1c level?

Secondary

MeasureTime frameDescription
Change in Depression symptoms [PHQ-9 questionnaire]Baseline, immediate post-intervention at 8 weeks, and at 3, 6, and 12 months post-intervention9-item measure of depressive symptoms scoring how often the participant has been bothered by each statement over the past 2 weeks from not at all (0) to nearly every day (3).
Change in Diabetes Regimen AdherenceFrom baseline up to 63 days, 7 days at 3 months post intervention (146-153), 7 days at 6 months post intervention (236-243), and 12 months post intervention (day 416-423)1-item measure on keeping up with diabetes regimen in the past 24 hours, asking Which of the following activities in your diabetes regimen did you complete over the past 24 hours?
Change in Perceived Stress [Perceived Stress Scale (PSS)]Baseline, immediate post-intervention at 8 weeks, and at 3, 6, and 12 months post-intervention10-item measure of perceived stress scoring how often the participant felt stressed by each statement in the following month from never (0) to very often (4).
Change in diabetes self-care activities [Summary of Diabetes Self-Care Activities (SDSCA)]Baseline, immediate post-intervention at 8 weeks, and at 3, 6, and 12 months post-intervention11-item measure of self-reported adherence to diabetes self-care activities, ex. On how many of the last seven days did you participate in at least 30 minutes of physical activity? with possible answers of 0 to 7 days for each question.
Change in positive affect [Patient-Reported Outcomes Measurement Information Systems - Positive Affect Subscale(PROMIS)]Baseline, immediate post-intervention at 8 weeks, and at 3, 6, and 12 months post-intervention15-item measure of positive affect scoring participants on how often then felt each statement was true over the past 7 days from not at all (1) to very much (5)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026