eIMPACT-DM Pilot Trial: Depression Treatment to Reduce Diabetes Risk

  • End date
    Jan 31, 2022
  • participants needed
  • sponsor
    Indiana University
Updated on 16 February 2021
insulin resistance
hemoglobin a1c
glycosylated hemoglobin
depressive disorder
depressive symptoms
glucose intolerance


This pilot randomized controlled trial seeks: (1) to determine the preliminary efficacy of our modernized collaborative care intervention for depression in improving the diabetes risk markers of hemoglobin A1c and insulin resistance and (2) to explore whether somatic depressive symptoms - i.e., hyperphagia (increased appetite/weight) and/or hypersomnia (increased sleep) - moderate the effect of the eIMPACT-DM intervention on diabetes risk markers.


Diabetes affects 31 million (12%) U.S. adults, and another 82 million (34%) adults have prediabetes, a precursor to diabetes. The ramifications of diabetes are grave and include cardiovascular disease, disability, and death. While these statistics highlight the importance of diabetes prevention, current approaches have only partial effectiveness. This has created a clear need to identify new primary prevention targets and approaches for diabetes, and depression and depression treatment are strong candidates in this regard. Over 20 years of evidence indicates that depression is an independent, clinically important, robust, biobehaviorally plausible, and modifiable risk factor for diabetes. However, research has yet to determine whether depression treatment can prevent the development of diabetes in people with prediabetes. Given that depression is still receiving limited attention in settings where diabetes prevention occurs (e.g., primary care), there is a large cohort of patients with an underdetected or undertreated diabetes risk factor (depression). This status quo and the strong state of the depression-to-diabetes science create the need for a pilot randomized controlled trial to evaluate the utility of depression treatment as a new diabetes prevention strategy. Thus, we propose a pilot RCT of 64 primary care patients (50% minority) with a depressive disorder and prediabetes. Patients will be randomized to 6 months of eIMPACT-DM (intervention) or Active Control (comparator). eIMPACT-DM is our modernized collaborative stepped care intervention consisting of (1) computerized and telephonic cognitive-behavioral therapy for depression and (2) select antidepressant medications included in an algorithm optimized for diabetes risk reduction. Our preliminary data establish the feasibility and antidepressive efficacy of eIMPACT-DM. The Active Control consists of depression education, symptom monitoring, and primary care for depression. Our primary aim is to determine the preliminary efficacy of eIMPACT-DM in improving the diabetes risk markers of hemoglobin A1c (primary outcome) and insulin resistance (secondary outcome). Our exploratory aim is to explore whether somatic depressive symptoms - i.e., hyperphagia (increased appetite/weight) and/or hypersomnia (increased sleep) - moderate the effect of eIMPACT-DM on diabetes risk markers. A positive pilot trial would pave the way to an R01-level RCT by: (1) generating critical proof-of-concept data (eIMPACT-DM can improve A1c) to support the premise of the definitive trial; (2) providing preliminary effect sizes for eIMPACT-DM on diabetes risk markers to help justify future power analyses; (3) identifying a potentially important moderator of eIMPACT-DM efficacy that may need to be incorporated into the definitive trial. Ultimately, demonstrating that depression treatment reduces diabetes risk would identify a novel target (depression) for diabetes prevention efforts, and it would equip healthcare providers with a new practical, scalable, and disseminable intervention (eIMPACT-DM) to help lower diabetes risk for a large cohort of high-risk patients. These practice changes should translate into reduced diabetes morbidity, mortality, and costs.

Condition NIDDM, Diabetes Mellitus, Insulin Resistance, Prediabetes, Glucose Intolerance, Major depression, Endogenous depression, Depression, Dysthymic Disorder, Depression (Major/Severe), Diabetes Mellitus, Type 2, Diabetes Prevention, Depression (Adolescent), Depression (Pediatric), Diabetes Mellitus Types I and II, Depression (Adult and Geriatric), Depression (Treatment-Resistant), Depressed, Diabetes (Pediatric), Diabetes Mellitus Type 2, pre-diabetic, depressive disorder, major depressive disorder, prediabetic state, type 2 diabetes mellitus, major depressive disorders, dysthymia, depressive symptoms, depressed mood, miserable, depressive disorders, type 2 diabetes, type ii diabetes, noninsulin-dependent diabetes mellitus, diabetes type 2
Treatment Active control, Beating the Blues US™ (BtB), Problem Solving Treatment in Primary Care (PST-PC), Antidepressant Medications, Good Days Ahead (GDA)
Clinical Study IdentifierNCT04437485
SponsorIndiana University
Last Modified on16 February 2021


Yes No Not Sure

Inclusion Criteria

Current primary care patient in Eskenazi Health
Age 18 years
Depressive disorder at screening
Prediabetes at screening

Exclusion Criteria

History of type 1 or type 2 diabetes
Major inflammatory conditions: HIV/AIDS, chronic kidney disease, systemic inflammatory disease (e.g., rheumatoid arthritis, lupus, Crohn's disease, and ulcerative colitis), or active cancer/current cancer treatment
Current pregnancy
Severe cognitive impairment
Acute risk of suicide
History of bipolar disorder or psychosis or current use of an atypical antipsychotic
Participation in our prior eIMPACT Trial
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact



Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note