Clinical trial NCT02637440: The Use Of FFR Guided PCI Versus Complete Revascularization and Treatment Of Infarct Related Artery Only In Patients With STEMI
Official title: Multi Centre Open Label Randomised Controlled Parallel-group Three Arm Trial To Compare The Use Of Fractional Flow Reserve (FFR) Guided and Angiographically Guided Revascularization To The Treatment Of Infarct Related Artery Only In Patients With STEMI And Multivessel Disease
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE3
Conditions: Multivessel Coronary Artery Disease
STEMI
FFR Guided PCI
Lead sponsor: University of Limerick
Sponsor class: OTHER
First posted: 2015-12-22
Enrollment: 560
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: In patients with ST elevation myocardial infarction (STEMI) the treatment goal is revascularization of the occluded artery with the use of primary percutaneous coronary intervention (PCI). There is a large subset of patients with STEMI who also have significant disease in arteries other than the site of occlusion, and away from the culprit artery. It is estimated that up to 50% have disease of more than 50% in the non-culprit arteries.

The evidence on how to treat those patients with multi vessel disease is conflicting. Earlier large-scale studies and registries have suggested early and complete revascularization is of no benefit or even harmful. More recent studies have showed the opposite of that. The CVLPRIT study showed that early complete revascularization or preventive PCI reduced primary endpoint of a composite of all cause mortality, myocardial infarction and need for repeat revascularization. The benefit was mainly due to reduced repeat revascularization in the more intensive intervention group. The PRAMI study showed very similar results as well.

The use of Fractional flow Reserve (FFR) in deciding complete revascularization has also showed conflicting results so far. A previous trial showed that FFR guided intervention post STEMI increased MACE. This was conflicted with more recent study, which showed FFR guided complete revascularization improved outcome when compared with more conservative treatment of ischaemia driven intervention.

In this study, the investigators are going to assess the issue of staged revascularization guided by FFR or by angiogram, compared to the standard treatment of ischaemia driven revascularization

Detailed description: To compare the clinical outcomes measured by composite of mortality, myocardial infarction and repeat revascularization by using FFR guided and angiographically guided revascularization to the standard strategy of ischaemia driven revascularization.

Participants will be allocated to three arms, first conservative group of ischaemia guided PCI, second FFR guided PCI and third angiogram guided PCI where patients where patients with more than 50% lesion will undergo revascularization.

Eligibility criteria: Inclusion Criteria:

1. Patients with STEMI and multi-vessel disease on initial angiogram.
2. Above 18 years of age
3. Able to give consent

Exclusion Criteria:

1. Patients with indication for CABG
2. Left main stem lesion of \>50%
3. Cardiogenic shock
4. Intractable angina during hospital admission
5. Patients with limited life expectancy
6. Patients with severe chronic kidney disease
7. Patients with contraindication to dual antiplatelet therapy
8. Patients with very complex lesions that deemed not favourable for PCI
9. Pregnancy or childbearing age

Primary outcomes:
measure: Composite of cardiovascular death, myocardial infarction and / or revascularization
timeFrame: 1 year
Secondary outcomes:
measure: Cardiovascular morality
timeFrame: 1 year
measure: Myocardial infarction
timeFrame: 1 year
measure: Revascularization
timeFrame: 1 year
measure: stroke
timeFrame: 1 year
measure: Heart failure
timeFrame: 1 year
measure: Costs
timeFrame: 1 year
Other outcomes:
measure: Bleeding
timeFrame: 1 year
Locations:
city: Galway
country: Ireland
facility: Galway University Hospital
city: Limerick
country: Ireland
facility: University Hospital Limerick
Study officials:
affiliation: University Hospital of Limerick
name: Thomas J Kiernan, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Gershlick AH, Khan JN, Kelly DJ, Greenwood JP, Sasikaran T, Curzen N, Blackman DJ, Dalby M, Fairbrother KL, Banya W, Wang D, Flather M, Hetherington SL, Kelion AD, Talwar S, Gunning M, Hall R, Swanton H, McCann GP. Randomized trial of complete versus lesion-only revascularization in patients undergoing primary percutaneous coronary intervention for STEMI and multivessel disease: the CvLPRIT trial. J Am Coll Cardiol. 2015 Mar 17;65(10):963-72. doi: 10.1016/j.jacc.2014.12.038.
citation: Levine GN, Bates ER, Blankenship JC, Bailey SR, Bittl JA, Cercek B, Chambers CE, Ellis SG, Guyton RA, Hollenberg SM, Khot UN, Lange RA, Mauri L, Mehran R, Moussa ID, Mukherjee D, Ting HH, O'Gara PT, Kushner FG, Ascheim DD, Brindis RG, Casey DE Jr, Chung MK, de Lemos JA, Diercks DB, Fang JC, Franklin BA, Granger CB, Krumholz HM, Linderbaum JA, Morrow DA, Newby LK, Ornato JP, Ou N, Radford MJ, Tamis-Holland JE, Tommaso CL, Tracy CM, Woo YJ, Zhao DX. 2015 ACC/AHA/SCAI Focused Update on Primary Percutaneous Coronary Intervention for Patients With ST-Elevation Myocardial Infarction: An Update of the 2011 ACCF/AHA/SCAI Guideline for Percutaneous Coronary Intervention and the 2013 ACCF/AHA Guideline for the Management of ST-Elevation Myocardial Infarction. J Am Coll Cardiol. 2016 Mar 15;67(10):1235-1250. doi: 10.1016/j.jacc.2015.10.005. Epub 2015 Oct 21. No abstract available.
citation: Engstrom T, Kelbaek H, Helqvist S, Hofsten DE, Klovgaard L, Holmvang L, Jorgensen E, Pedersen F, Saunamaki K, Clemmensen P, De Backer O, Ravkilde J, Tilsted HH, Villadsen AB, Aaroe J, Jensen SE, Raungaard B, Kober L; DANAMI-3-PRIMULTI Investigators. Complete revascularisation versus treatment of the culprit lesion only in patients with ST-segment elevation myocardial infarction and multivessel disease (DANAMI-3-PRIMULTI): an open-label, randomised controlled trial. Lancet. 2015 Aug 15;386(9994):665-71. doi: 10.1016/s0140-6736(15)60648-1.