UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059450
Receipt number R000067990
Scientific Title Prediction of graft patency using intracoronary pressure indices in coronary bypass surgery
Date of disclosure of the study information 2025/10/17
Last modified on 2025/10/17 22:05:58

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Basic information

Public title

Prediction of graft patency using intracoronary pressure indices in coronary bypass surgery

Acronym

Prediction of graft patency using intracoronary pressure indices in coronary bypass surgery

Scientific Title

Prediction of graft patency using intracoronary pressure indices in coronary bypass surgery

Scientific Title:Acronym

Prediction of graft patency using intracoronary pressure indices in coronary bypass surgery

Region

Japan


Condition

Condition

ischemic heart disease

Classification by specialty

Cardiology Cardiovascular surgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study sought to compare the predictive value of preoperative FFR and NHPR for patency of in-situ ITA-LAD using postoperative coronary computed tomography angiography

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Graft patency at 1st postoperative CCTA

Key secondary outcomes

the difference of preoperative coronary assessment and intraoperative transit time flow meter


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

100 years-old >

Gender

Male and Female

Key inclusion criteria

patients who were performed preoperative intracoronary pressure assessment with FFR and NHPR, and postoperative graft assessment with CCTA

Key exclusion criteria

patients who did not be performed CCTA due to chronic kidney disease or other resons

Target sample size

120


Research contact person

Name of lead principal investigator

1st name Ryo
Middle name
Last name Nakamura

Organization

Wakayama Medical University

Division name

Cardiovascular and thoracic surgery

Zip code

641-8509

Address

811-1, Kimiidera, Wakayama City, Wakayama prefecture, Japan

TEL

073-447-2300

Email

m09077rn@wakayama-med.ac.jp


Public contact

Name of contact person

1st name Ryo
Middle name
Last name Nakamura

Organization

Wakayama medical university

Division name

cardiovascular and thoracic surgery

Zip code

641-8509

Address

811-1, Kimiidera, Wakayama city, Wakayama prefecture, Japan

TEL

073-447-2300

Homepage URL


Email

m09077rn@wakayama-med.ac.jp


Sponsor or person

Institute

Wakayama Medical University

Institute

Department

Personal name

Nakamura Ryo


Funding Source

Organization

none

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Wakayama Medical University

Address

811-1, Kimiidera, Wakayama city, Wakayama prefecture, Japan

Tel

073-447-2300

Email

m09077rn@wakayama-med.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

和歌山県立医科大学附属病院


Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 17 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

120

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2022 Year 06 Month 21 Day

Date of IRB

2022 Year 06 Month 21 Day

Anticipated trial start date

2022 Year 06 Month 21 Day

Last follow-up date

2025 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The group that developed postoperative graft hypoperfusion had significantly higher preoperative FFR/NHPR values, and NHPR was a better predictor of graft hypoperfusion than FFR.


Management information

Registered date

2025 Year 10 Month 17 Day

Last modified on

2025 Year 10 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000067990