Effect Levosimendan Administration on Postoperative NT-proBNP in Cardiac Risk Patients (IMPROVE)

March 23, 2024 updated by: Edith Fleischmann, Medical University of Vienna

The Effect of Perioperative LevosIMendan Administration on Postoperative N-terminal pRo Brain Natriuretic Peptide Concentration in Patients With Increased cardiOVascular Risk Factors Undergoing Noncardiac surgEry - A Double-blinded Randomized Clinical Trial

This is a prospective randomised trial investigating the effect of a preemptive administration of levosimendan on postoperative cardiac NT-proBNP concentrations.

Study Overview

Status

Active, not recruiting

Intervention / Treatment

Detailed Description

Major cardiovascular complications occur in about 3 % of all patients undergoing noncardiac surgery and are even higher in patients with increased preoperative risk factors. N-terminal pro brain natriuretic peptide (NT-proBNP) increases in over two third of patients undergoing surgery and is a strong predictor for perioperative myocardial complications. Levosimendan is a positive inotropic Ca2+ sensitizer and significantly reduces postoperative BNP concentration in cardiac surgery. The evidence in the non-cardiac surgery setting, however, is weak. Therefore, we will test our primary hypothesis that the perioperative administration of levosimendan significantly will reduce postoperative NT-proBNP concentrations in patients undergoing moderate- to high-risk non-cardiac surgery. We will also test the secondary hypotheses that levosimendan will reduce postoperative maximum troponin T (maxTnT) concentration, the incidence of myocardial injury after noncardiac surgery (MINS), myocardial infarction and death within 30 days and one year after surgery.

Study Type

Interventional

Enrollment (Actual)

230

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Vienna, Austria, 1100
        • Medical University of Vienna

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

63 years to 83 years (Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

All patients need to meet all of the following criteria for inclusion (1-4):

  1. Undergoing major surgery planned for more than 2 hours
  2. ≥ 65 years of age and ≤ 85 years of age
  3. Provide written informed consent AND
  4. Fulfill ≥ 2 of the following criteria (A-E)

A) NT-proBNP ≥ 200 ng/L

B) History of coronary artery disease defined as 1 of the following 7 criteria (I to VII):

  • I) History of angina
  • II) History of myocardial infarction or acute coronary syndrome
  • III) History of a segmental cardiac wall motion abnormality on echocardiography/radionuclide imaging
  • IV) History of positive myocardial stress test (echocardiographic or radionuclide)
  • V) History of a coronary artery stenosis > 50%
  • VI) ECG with pathological Q waves in any two contiguous leads
  • VII) History of previous artery revascularizations

C) History of permanent/paroxysmal atrial fibrillation diagnosed by physician/specialist

D) History of peripheral arterial disease as defined by a physician/specialist diagnosis of a current, or prior history of any 1 of the following 5criteria (I-V)

  • I) Intermittent claudication
  • II) Stenosis ≥ 70 % detected by angiography or doppler
  • III) Stenosis ≤ 70% detected by angiography or doppler AND requiring medical treatment e.g. ASA or other platelet inhibitor
  • IV) History of stroke or TIA - diagnosed by physician or CT/MRI
  • V) Diagnosed cerebral arteriovascular disease (cAVK) diagnosed by a physician/specialist

E) Any 3 of 10 of the following risk criteria (i - x).

  • i. History of congestive heart failure defined as a physician diagnosis of a current or prior episode of congestive heart failure OR prior radiographic evidence of vascular redistribution, interstitial pulmonary edema, or frank alveolar pulmonary edema;
  • ii. History of a transient ischemic attack;
  • iii. Diabetes and currently taking an oral hypoglycemic agent or insulin;
  • iv. History of hypertension;
  • v. Hyperlipidemia and currently taking a lipid lowering agent;
  • vi. Documented chronic kidney disease diagnosed by physician/specialist and creatinine clearance > 30 ml/min
  • vii. History of smoking within 2 years of surgery
  • viii. Diastolic dysfunction (≥ grade 1) documented by echocardiography
  • ix. Age ≥ 70 years
  • x. Preoperative Troponin T (5th generation) ≥ 25ng/dL

Exclusion Criteria:

A) Previous adverse response and/or allergy to levosimendan B) ICU Patients undergoing surgery C) Preoperative Sepsis/SIRS needing ICU treatment D) Preoperative hemodynamically instable patients, who requirevasopressor or inotropic support E) Renal or liver transplantation F) History of severe heart failure (e.g. LVEF < 30%) G) Patients undergoing surgery for pheochromocytoma H) Liver cirrhosis I) Pulmonary hypertension (mPAP > 25 mmHg) J) Severe Renal Failure defines as creatinine clearance ≤ 30ml/min

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Levosimendan
Patients receive a continuous infusion of 12.5mg solved in 50mL Levosimendan for up to 24 hours. Infusion will be started with surgical skin incision.
Levosimendan 2.5 mg/ml injection contains levosimendan 2.5 mg, povidone 10.0 mg, citric acid, anhydrous 2.0 mg and ethanol, anhydrous to 1.0 mL. Levosimendan injection is a clear, yellow to orange solution. Immediately after skin incision patients allocated to the verum group will receive a dose of 12.5 mg in 500 mL of levosimendan.
Placebo Comparator: Placebo
Patients receive a continuous infusion containing a placebo solved in 50mL for up to 24 hours. Infusion will be started with surgical skin incision.

Placebo 2.5 mg/ml injection contains riboflavine sodium phosphate 0.4 mg, dehydrated alcohol 100 mg and water for injection to 1 mL.

Immediately after skin incision patients allocated to the placebo group will receive 500 mL of 5% Glucose.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative maximum NT-proBNP concentration
Time Frame: First 5 Postoperative Days
The administration of levosimendan improves LVEF and myocardial oxygen perfusion, which will be reflected in a decrease of postoperative NT-proBNP concentration.Since NT-proBNP is a strong predictor for postoperative cardiovascular complications in patients undergoing noncardiac surgery, we want to test the efficiency of levosimendan to decrease postoperative maxNT-proBNP concentrations in patients with increased cardiac risk factors undergoing moderate- to high-risk noncardiac surgery.
First 5 Postoperative Days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative maximum troponin T concentration
Time Frame: First five postoperative days
Levosimendan improves myocardial perfusion and might therefore reduce the postoperative maximum rise in TnT
First five postoperative days
Incidence of MINS (myocardial injury in non cardiac surgery)
Time Frame: First three postoperative days
Levosimendan decreases the incidence of MINS during the first 3 postoperative days as compared to placebo in patients with increased cardiovascular risk factors undergoing moderateto high-risk noncardiac surgery. MINS is defined as: (i) a non-high-sensitivity troponin T >_30ng/L2 and (ii) a high-sensitivity troponin T (hsTnT) of 20 to <65 ng/L with an absolute change of at least 5 ng/L-this change threshold is independently associated with 30-day mortality [hazard ratio (HR) 4.69; 95% confidence interval (CI) 3.52-6.25]-or an hsTnT level >_65ng/ L. Furthermore, an absolute change of at least 5 ng/L is independently associated with 30-day mortality and will also be defined as MINS. TnT will be measured within 2 hours after surgery, on the first, second and third postoperative day.
First three postoperative days
Myocardial Infarction
Time Frame: 30 days and 1 year after surgery
Levosimendan reduces the event rates of myocardial infarction and death during 30 days and 1 year after surgery as compared to placebo. Myocardial infarction is defined as a rise of TnT at least one value is above the 99th percentile URL and with at least one of the following: (i) symptoms of acute myocardial ischaemia; (ii) new ischaemic ECG changes; (iii) development of pathological Q waves; (iiii) imaging evidence of new loss of viable myocardium; (v) new regional wall motion abnormality in a pattern consistent with an ischemic ethiology; (vi) identification of a coronary thrombus by angiography including intracoronary imaging or autopsy.
30 days and 1 year after surgery
Disability
Time Frame: 30 days and 1 year after surgery

We evaluate the WHODAS 2.0 score before surgery on the day of consent, 30 days after surgery, and 1 year after surgery per phone call. For analyzing we use simply scoring. Each score is assigned to each of the following items - "none" (0), "mild" (1), "moderate" (2), "severe" (3), and "extreme (4).

We will simply add up the scores from the items without recoding or collapsing of response categories, thus, there is no weighting of the individual items. As a result, the simple sum of the scores of the items across all domains constitutes a statistic that is sufficient to describe the degree of functional limitations.

30 days and 1 year after surgery
NT-proBNP Mortality
Time Frame: 30 days and 1 year after surgery

Perioperative NT-proBNP elevations are associated with postoperative mortality, cardiac mortality, mortality and nonfatal MI, and cardiac failure at both 30 days and 180 days or more after surgery.

NT-proBNP values have been stratified to the previous published thresholds to predict mortality or MI after surgery.

30 days and 1 year after surgery

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sub-Study I: Fluid status determination
Time Frame: within 5 days after surgery
Bioimpedance spectroscopy to determine perioperative fluid status including: 1) over hydration and total body water
within 5 days after surgery
Sub-Study II: Acute Kidney Injury
Time Frame: within 5 days after surgery
The number of patients developing acute kidney injury after and the number of patients requiring renal replacement therapy after surgery.
within 5 days after surgery
Sub-Study III: Inflammatory Response
Time Frame: within 5 days after surgery
Effect of levosimendan on postoperative maximum Interleukin 6 and CRP concentrations.
within 5 days after surgery
Sub-Study IV: Neurocognitive decline
Time Frame: within first 5 postoperative days and 1 year after surgery
Effect of levosimendan on postoperative neurocognitive decline assess using MoCA
within first 5 postoperative days and 1 year after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 10, 2020

Primary Completion (Actual)

November 7, 2023

Study Completion (Estimated)

November 2, 2024

Study Registration Dates

First Submitted

March 27, 2020

First Submitted That Met QC Criteria

March 30, 2020

First Posted (Actual)

April 1, 2020

Study Record Updates

Last Update Posted (Actual)

March 26, 2024

Last Update Submitted That Met QC Criteria

March 23, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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