Study to examine correlation between predictive value and post PCI value of iFR, RFR and dPR

Study to examine correlation between predictive value and post PCI value of iFR, RFR and dPR - Correlation between predictive value and post PCI value of iFR, RFR and dPR

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000033534

Enrollment

150

Registered

2018-08-01

Start date

2018-08-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stable coronary diseases

Interventions

The group (iFR group) which measured predictive value and post PCI value by iFR The group (RFR group) which measured predictive value and post PCI value by RFR The group (dPR group) which measured pre

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patient who is scheduled to undergo CAG and iFR, RFR or dPR is positive (0.89 or less) and PCI is planned

Exclusion criteria

Exclusion criteria: Bypass patients. ATP, nicorandil, papaverin contraindicated patients. STEMI. TIMI flow grade <3.90% < stenosis

Design outcomes

Primary

Measure	Time frame
Evaluation of the difference and correlation between predictive value of iFR, RFR and dPR; average predictive value and post PCI value of iFR, RFR and dPR	—

Secondary

Measure	Time frame
1) Evaluate separately by Type A, B, C (tandem lesion, diffuse lesion) 2) Comparison of measurement time of RFR and dPR compared to iFR 3) Drift of each pressure wire 4) Proportion of 0.9 or more for post iFR, post RFR and post dPR; whether additional treatment was done 5) Whether post FFR achieves 0.8 or more. Whether additional treatment was done 6) Evaluation of plaque properties with IVUS (Terumo,Boston,NIPRO) of fiber component, lipid component, calcification. In particular, the predictive value when highly calcified at least 270 degrees of calcification is observed is not significantly different from the post PCI value. 7) Number of stents used and stent length	—

Measure

Time frame

1) Evaluate separately by Type A, B, C (tandem lesion, diffuse lesion) 2) Comparison of measurement time of RFR and dPR compared to iFR 3) Drift of each pressure wire 4) Proportion of 0.9 or more for post iFR, post RFR and post dPR; whether additional treatment was done 5) Whether post FFR achieves 0.8 or more. Whether additional treatment was done 6) Evaluation of plaque properties with IVUS (Terumo,Boston,NIPRO) of fiber component, lipid component, calcification. In particular, the predictive value when highly calcified at least 270 degrees of calcification is observed is not significantly different from the post PCI value. 7) Number of stents used and stent length

—

Countries

Japan

Contacts

Public ContactHiroyuki Omori

Gifu Heart Center Department of Cardiovascular Medicine

omori@heart-center.or.jp058-277-2277

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026