Nitric Oxide-mediated Cardioprotection During Cardiac Surgery With Cardiopulmonary Bypass

NCT ID: NCT03500783

Last Updated: 2019-07-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-05-15

Study Completion Date

2016-11-30

Brief Summary

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This prospective randomized study elucidates the effects of exogenous nitric oxide delivered to the extracorporeal circulation circuit for cardioprotection against ischemia-reperfusion injury during coronary artery bypass graft surgery with cardiopulmonary bypass.

Detailed Description

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The aim of this study is to investigate the effects of exogenous nitric oxide (NO) delivered to the extracorporeal circulation circuit for cardioprotection against ischemia-reperfusion injury during coronary artery bypass graft surgery (CABG) with cardiopulmonary bypass (CPB). A total of 60 patients with ischemic heart disease referred for CABG with CPB are included in prospective randomized study. Patients are randomized to receive standard treatment or surgery based on modified CPB protocol. According to modified protocol, 40-ppm NO is supplied to the CPB circuit during CABG. The primary endpoints are changes in cardiac troponin I (cTnI) levels at 6, 24, and 48 hours after surgery compared with baseline. The secondary end points are the changes in the levels of creatine kinase-muscle/brain (CK-MB) compared with baseline and vasoactive inotropic score (VIS) at 6, 24, and 48 hours. NO supplied to the CPB circuit exertes cardioprotective effect. Changes in cTnI, CK-MB, and VIS are considered indictors of the presence or absence of cardioprotective action of NO supplied to the CPB circuit.

Conditions

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Coronary Artery Disease Coronary Artery Bypass Cardiopulmonary Bypass Nitric Oxide Reperfusion Injury, Myocardial

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Single-center prospective, randomized, placebo-controlled study
Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors
Trial participants, data analysts, and report writers are blinded.

Study Groups

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Nitric Oxide

Patients of this group receive treatment with exogenous gaseous nitric oxide supplied directly to the oxygenator in the cardiopulmonary bypass circuit during coronary artery bypass grafting for coronary artery disease.

Group Type EXPERIMENTAL

Nitric Oxide

Intervention Type DRUG

40 ppm of exogenous gaseous nitric oxide is supplied directly to the oxygenator in the cardiopulmonary bypass circuit during coronary artery bypass grafting.

Standard CPB

Patients of this group receive sham-treatment without supplying nitric oxide to the cardiopulmonary bypass circuit during coronary artery bypass grafting for coronary artery disease. Considering dilution of nitric oxide at a high ratio of 1 to 25,000 in the gas mixture of the cardiopulmonary bypass circuit (CPB), no addition of any inert gas to the CPB circuit is required in sham-treatment group.

Group Type PLACEBO_COMPARATOR

Standard CPB

Intervention Type OTHER

Standard protocol of delivery of air gas mixture to the cardiopulmonary bypass circuit

Interventions

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Nitric Oxide

40 ppm of exogenous gaseous nitric oxide is supplied directly to the oxygenator in the cardiopulmonary bypass circuit during coronary artery bypass grafting.

Intervention Type DRUG

Standard CPB

Standard protocol of delivery of air gas mixture to the cardiopulmonary bypass circuit

Intervention Type OTHER

Other Intervention Names

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Cardiopulmonary bypass

Eligibility Criteria

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Inclusion Criteria

* Coronary artery disease requiring coronary artery bypass grafting with the cardiopulmonary bypass.

Exclusion Criteria

* Non-elective surgery, age over 70 years, left ventricular ejection fraction less than 35%, history of myocardial infarction within three months prior to surgery, chronic atrial fibrillation, diabetes mellitus, and the elevated levels of cardiac specific markers within 12 h prior to the intervention.
Minimum Eligible Age

56 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Tomsk National Research Medical Center of the Russian Academy of Sciences

OTHER

Sponsor Role lead

Responsible Party

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Nikolay Kamenshchikov

Principal Investigator, Physician Anesthesiologist

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sergey V Popov, MD

Role: STUDY_DIRECTOR

Tomsk NRMC

Other Identifiers

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NOinCPB

Identifier Type: -

Identifier Source: org_study_id

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