This trial is active, not recruiting.

Condition coronary artery disease
Treatment resolute integrity stent
Sponsor Emory University
Start date September 2013
End date July 2016
Trial size 8 participants
Trial identifier NCT01794949, IRB00057208


The use of drug eluting stents (DES) used to treat coronary artery blockages is limited by poor healing of the stented area. This will require the combined use of blood thinners such as aspirin and clopidogrel (i.e. dual anti-platelet therapy (DAPT)) to prevent complications such as clot formation on the stent which may lead to a heart attack. Diabetic patients and those presenting with a heart attack at the time of stent placement are at increased risk for clot formation the stent however little is known of the healing responses after stent placement in these populations.

Currently all patients receiving DES are advised to complete DAPT for twelve months although more personalized durations of DAPT based on stent healing would reduce both clot formation and potential bleeding from the blood thinners, thereby improving the long-term safety of DES.

Intracoronary optical frequency domain imaging (OFDI) is a novel high resolution invasive imaging technique that has the ability to evaluate stent healing at follow-up. Among the commercially available coated stents used in the U.S., the zotarolimus eluting stents (RESOLUTE Integrity, Medtronic, Minneapolis, MN) has demonstrated superior healing in both preclinical and clinical studies.

The purpose of this trial is to determine the healing responses to the RESOLUTE Intregrity stent as detected by OFDI in patients with and without diabetes presenting with ACS. Specifically in this observational study, we will investigate non-insulin dependent diabetics and non-diabetics in the setting of ACS and RESOLUTE Integrity stent placement.

The investigators hypothesize that healing responses in patients with non-insulin dependent diabetes will be similar to those without diabetes presenting with ACS and that a majority of patients will demonstrate complete healing as determined by OFDI measurements.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Observational model case control
Time perspective prospective
Non-diabetic patients with percent covered struts measured at 6 months following Resolute stent placement
resolute integrity stent
Drug eluting stents used to treat coronary artery blockages
Non-insulin dependent diabetes mellitus (NIDDM) patients with percent covered struts measured at 6 months following Resolute stent placement
resolute integrity stent
Drug eluting stents used to treat coronary artery blockages

Primary Outcomes

Percent stent coverage
time frame: 6 months

Eligibility Criteria

Male or female participants from 18 years up to 80 years old.

Inclusion Criteria: - Any patient requiring PTCI for acute coronary syndrome (ACS) and meeting criteria (as determined by the performing physician) for Resolute Integrity stent placement. Exclusion Criteria: - ST segment elevation MI (STEMI) - stable angina - current or planned pregnancy (for women of childbearing age) - treatment of > 2 lesions during the index hospitalization - insulin dependent diabetic patients at the time of stent placement - use of overlapping stents.

Additional Information

Official title Optical Frequency Domain Imaging (OFDI) Determined Stent Strut Coverage and Plaque Morphology After RESOLUTE Stent Placement in Non-Insulin Dependent Diabetics Presenting With Acute Coronary Syndrome (ACS)
Principal investigator Henry Liberman, MD
Trial information was received from ClinicalTrials.gov and was last updated in June 2016.
Information provided to ClinicalTrials.gov by Emory University.