Online Cognitive Behavioral Therapy for Depressive Symptoms in Rural Patients With Cardiac Disease (COMBAT-DS)
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ClinicalTrials.gov Identifier: NCT04986969 |
Recruitment Status :
Recruiting
First Posted : August 3, 2021
Last Update Posted : September 14, 2022
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Condition or disease | Intervention/treatment | Phase |
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Depressive Symptoms Heart Diseases | Behavioral: Online cognitive behavioral therapy | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 500 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | The investigators will use a longitudinal, 2-arm randomized, comparative effectiveness trial, stratified by sex. Patients will be randomized to one of two study arms: 1) real-time, face-to-face, video-conferenced CBT (vcCBT) with a trained CBT therapist; or 2) self-administered internet-based CBT (iCBT) via a well-tested online CBT program, MoodGym. Patients will be followed for 12 months from baseline and depressive symptom data collected at 3, 6, and 12 months to characterize intervention response. Participants will be randomized to either vcCBT (n = 150) or iCBT (n = 150) arm. |
Masking: | Single (Investigator) |
Masking Description: | Active therapy is delivered to patients, thus it is impossible to mask the participant or care provider. The investigators are blinded. |
Primary Purpose: | Treatment |
Official Title: | Online Cognitive Behavioral Therapy for Depressive Symptoms in Rural Patients With Coronary Heart Disease |
Actual Study Start Date : | April 15, 2021 |
Estimated Primary Completion Date : | October 1, 2024 |
Estimated Study Completion Date : | October 1, 2025 |

Arm | Intervention/treatment |
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Active Comparator: real-time, face-to-face, video-conferenced CBT (vcCBT)
vcCBT is cognitive behavioral therapy that consists of eight face-to-face video-conferencing sessions via tablet computers lasting approximately 45 minutes each.
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Behavioral: Online cognitive behavioral therapy
online cognitive behavioral therapy delivered using one of two active methods |
Active Comparator: self-administered internet-based CBT (iCBT)
iCBT is self-directed cognitive behavioral therapy using an interactive internet program, MoodGYM, which does not include direct interactions with a therapist.
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Behavioral: Online cognitive behavioral therapy
online cognitive behavioral therapy delivered using one of two active methods |
- Change in depressive symptoms as a result of intervention effects [ Time Frame: Baseline, 3, 6 and 12 months ]Change in levels of depressive symptoms measured using the Patient Health Questionnaire-9, across time and between subjects. The Patient Health Questionnaire-9 is a measure that consists of nine items that correspond to criteria for diagnosing depression. Higher scores indicate greater severity of symptoms. Scores on measure can range from 0-27 with an accepted cut-off of ≥ 10 for moderate symptoms. Reliability and validity of the instrument have been established in a variety of populations, including cardiac patients.
- Change in intervention effects on depressive symptoms moderated by perceived stigma [ Time Frame: Baseline, 3, 6, and 12 months ]The investigators will determine whether perceived stigma moderates intervention effects on depressive symptoms across time. Stigma refers to negative beliefs about a condition and its treatment. Depression-related stigma will be measured using the Depression Stigma Scale. Developed to measure personal stigma related to being treated for depressive symptoms, the measure has been used extensively since its inception. Scores on the 18-item total scale can range from 0-36, and higher scores indicate greater perceptions of stigma. The instrument has well-established reliability and validity, and has been used in rural Kentuckians.
- Change in intervention effects on depressive symptoms moderated by sex [ Time Frame: Baseline, 3, 6, and 12 months ]The investigators will determine whether sex moderates intervention effects on depressive symptoms across time. Sex will be self-described by the patient.
- Change in intervention effects on depressive symptoms moderated by health literacy [ Time Frame: Baseline, 3, 6, and 12 months ]Determine whether health literacy measured using the Newest Vital Sign moderates intervention effects on change in depressive symptoms. Health literacy is defined as the degree to which individuals have the capacity to obtain, process, and understand basic health information and services needed to make appropriate health decisions. The investigator will assess health literacy using the Newest Vital Sign. This instrument is sensitive, reliable and valid for the assessment of health literacy, and is well-accepted by individuals being screened even when they have low educational level.
- Compare all-cause hospitalization rates between intervention groups [ Time Frame: 3 months ]Measurement of hospitalization rates using the electronic health record and patient interview
- Compare all-cause hospitalization rates between intervention groups [ Time Frame: 6 months ]Measurement of hospitalization rates using the electronic health record and patient interview
- Compare all-cause hospitalization rates between intervention groups [ Time Frame: 12 months ]Measurement of hospitalization rates using the electronic health record and patient interview
- Compare physical activity levels between groups [ Time Frame: 3 months ]Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (≥6 METs) physical activity.
- Compare physical activity levels between groups [ Time Frame: 6 months ]Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (≥6 METs) physical activity.
- Compare physical activity levels between groups [ Time Frame: 12 months ]Measurement of physical activity levels using actigraphy. Actigraphy is an objective method of obtaining accurate and reproducible activity levels, and advances in the technology have produced an instrument that reliably and validly represents physical activity levels. The investigators use the GT9X-BT Link Bluetooth Activity Monitor (ActiGraph, Pensacola, FL). The Actigraph is an omni-directional accelerometer, which assesses acceleration in multiple directions as opposed to uniaxial accelerometer, which is sensitive to movement only in the vertical axis. The actigraph has a dynamic range of ± 8 g. The Actigraph allows researchers to estimate energy expenditure by quantifying the amount time spent in light [<3 metabolic equivalents (METs)], moderate (3-5.99 METs), and vigorous (≥6 METs) physical activity.
- Compare medication adherence between groups [ Time Frame: 3 months ]Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group.
- Compare medication adherence between groups [ Time Frame: 6 months ]Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group.
- Compare medication adherence between groups [ Time Frame: 12 months ]Measurement of medication adherence will be done using the Medication Event Monitoring System. Medication adherence will be measured with the Medication Event Monitoring System (MEMS; AARDEX, Union City, CA), a reliable, accurate and objective method. The MEMS is considered the gold standard in medication adherence measurement. The MEMS offers the advantage of objective measurement and has been successfully used in multiple clinical trials by our group.
- Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety [ Time Frame: Baseline ]Measured using interviews for dietary recall
- Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety [ Time Frame: 3 months ]Measured using interviews for dietary recall
- Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety [ Time Frame: 6 months ]Measured using interviews for dietary recall
- Compare the effect of intervention effects on within-meal, across meal, and within-food group diet variety [ Time Frame: 12 months ]Measured using interviews for dietary recall

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Ages Eligible for Study: | 21 Years to 110 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- at least moderate depressive symptoms (PHQ-9 ≥ 10)
- rural dwelling
- has had physician-documented acute coronary syndrome (ACS) event
Exclusion Criteria:
- cognitive impairment
- major psychiatric comorbidities, which might require additional treatment
- presence of non-CHD conditions likely to be fatal within next year.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04986969
Contact: Debra K Moser | 8593236687 | dmoser@uky.edu | |
Contact: Misook Chung | 8593236687 | misook.chung@uky.edu |
United States, Kentucky | |
University of Kentucky | Recruiting |
Lexington, Kentucky, United States, 40536 | |
Contact: Debra K Moser, PhD, RN 859-323-6687 dmoser@uky.edu | |
Contact: Rana Rahman, PhD, RN 8593236656 rana.lindsay-rahman@uky.edu | |
Principal Investigator: Debra K Moser, PhD, RN |
Principal Investigator: | Debra K Moser, PhD, RN | University of Kentucky |
Responsible Party: | Debra Moser, Professor and Linda C Gill Endowed Chair of Nursing, University of Kentucky |
ClinicalTrials.gov Identifier: | NCT04986969 |
Other Study ID Numbers: |
AD-2019C3-17982 |
First Posted: | August 3, 2021 Key Record Dates |
Last Update Posted: | September 14, 2022 |
Last Verified: | September 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | We will use the PCORI-prescribed methods for data-sharing. Deidentified data including the major primary outcome data will be made available. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Informed Consent Form (ICF) |
Time Frame: | Data will be available 12 months after the end of the study. It will be available in the University of Michigan data repository (per PCORI) forever. |
Access Criteria: | Request from the repository. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
rural cardiac diseases depressive symptoms cognitive behavioral therapy |
Heart Diseases Depression Cardiovascular Diseases Behavioral Symptoms |