eIMPACT Trial: Modernized Collaborative Care to Reduce the Excess CVD Risk of Older Depressed Patients

Study Summary

The objective of this randomized controlled trial is to evaluate whether the investigators modernized IMPACT intervention for depression (eIMPACT), delivered before the onset of cardiovascular disease (CVD), reduces the risk of future CVD. Participants will be primary care patients who are depressed but do not have a history of CVD. Half of the participants will receive standard depression treatment in primary care (usual care), and the other half will receive one year of eIMPACT, a collaborative stepped care program including antidepressants and computerized and telephonic cognitive-behavioral therapy. To evaluate change in CVD risk, the investigators will measure artery function using ultrasound before and after the 1-year treatment period. It is hypothesized that patients who receive the eIMPACT intervention will have greater improvements in artery function than patients who receive usual care.

Primary Outcome

Brachial FMD was measured per consensus guidelines using a GE LOGIQe high-resolution ultrasound with a 15-MHz vascular transducer. After a 10-minute supine rest period, a BP cuff was placed on the forearm and inflated to 250 mmHg for five minutes. Brachial diameter was measured at pre-inflation and 60- and 90-seconds post-deflation using AccessPoint 2011 software (version 8.2). FMD was computed the maximum % increase in brachial diameter at 60- or 90-seconds post-deflation.

Interventions

• OTHER Usual Care
• BEHAVIORAL Beating the Blues (BtB)
• BEHAVIORAL Problem Solving Treatment in Primary Care (PST-PC)
• DRUG Antidepressant Medications