Vasopressin or Norepinephrine in Vasoplegic Shock After Non-cardiac Surgery (VANCSIII)

October 2, 2023 updated by: Tais Felix Szeles, University of Sao Paulo

Vasopressin or Norepinephrine in Vasoplegic Shock After Non-cardiac Surgery: a Randomized and Controlled Trial

The purpose of the present study is to evaluate the effect of vasopressin compared to norepinephrine on the clinical complications of patients with vasospastic shock after noncardiac surgeries.

Study Overview

Status

Withdrawn

Detailed Description

The Systemic Inflammatory Response Syndrome (SIRS) is a common complication after non-cardiac surgery, impacting negatively on patient outcome and with high incidence rates. Vasoplegic syndrome is the most serious complication of SIRS and can happen after any type of surgery. The etiology of the vasoplegic syndrome has not yet been fully elucidated, but is known to occur more frequently in patients at high surgical risk, submitted to major surgeries, or in the presence of perioperative complications and patients with comorbidities. In this circumstance, the depletion of vasopressin stocks is described, which may contribute to the refractoriness of the shock and the lack of response to the catecholaminergic drugs. The standard treatment of perioperative vasoplegia has been adequate volume replacement and administration of vasopressors, with norepinephrine being the most commonly used. However, it is known that norepinephrine may have deleterious effects on the body and in 20% of patients with vasospastic shock it is ineffective. Previous studies have suggested benefits of adding vasopressin in refractory situations, especially in septic shock. Recently the VANCS study (Vasopressin or norepinephrine in the vasopregic shock after cardiac surgery: double-blind, controlled and randomized study) demonstrated superiority of vasopressin in the reversion of vasoplegic shock after cardiac surgery, as well as a lower incidence of renal insufficiency, atrial fibrillation and shorter hospitalization time. (Anesthesiology. 2017 Jan;126(1):85-93.)

Study Type

Interventional

Phase

  • Phase 2
  • 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

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age greater than 18 years;
  • Patients undergoing high-risk non-cardiac surgery;
  • vasopressor need within 24 hours after surgery, defined as mean arterial pressure (MAP) <65 mmHg after volume resuscitation with at least 1 liter of crystalloid solution (Ringer's lactate) and maintaining a cardiac index> 2.2 ml / min / m²;
  • Signature of the informed consent form.

Exclusion Criteria:

  • Allergy to vasoactive drugs;
  • Previous use of vasopressor;
  • Gestation;
  • Presence of Raynaud's phenomenon, altered Allen's test, systemic sclerosis or vasospastic diathesis;
  • Severe hyponatremia (Na <130 mEq / L);
  • Acute mesenteric ischemia;
  • Acute coronary syndrome;
  • Participation in another study;
  • Refusal to participate in the study.

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Norepinephrine group
Blinded norepinephrine
Blinded Norepinephrine will be started if there is persistent hypotension, characterized by mean arterial pressure <65 mmHg after fluid replacement. Continuous infusion of the drug at doses ranging from 0.1 mcg / kg / min to 1.0 mcg / kg / min.
Other Names:
  • Blinded Norepinephrine
Experimental: Vasopressin group
Blinded vasopressin

Blinded Vasopressin will be started if there is persistent hypotension, characterized by mean arterial pressure <65 mmHg after fluid replacement.

Continuous infusion of the drug at doses ranging from 0.01 U / min to 0.06 U / min

Other Names:
  • Blinded Vasopressin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence between groups of a composite outcome of all-cause mortality, cardiovascular and renal complications after high-risk non-cardiac surgeries
Time Frame: 30 days

Cardiovascular complications include: stroke, acute myocardial infarction, cardiogenic shock, nonfatal myocardial injury, and ventricular or supraventricular arrhythmias.

Renal complications: Acute renal failure with AKIN stage 1 or higher or renal support therapy.

30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
All-cause mortality
Time Frame: 30 days after randomization
mortality rate of any cause
30 days after randomization
Acute myocardial infarction
Time Frame: 30 days after randomization
to compare between groups the incidence of acute myocardial infarction
30 days after randomization
Cardiogenic shock
Time Frame: 30 days after randomization
to compare between groups the incidence of cardiogenic shock
30 days after randomization
Ventricular and / or supraventricular arrhythmia
Time Frame: 30 days
to compare between groups the incidence of Ventricular and / or supraventricular arrhythmia
30 days
Acute respiratory distress syndrome (ARDS)
Time Frame: 30 days
to compare between groups the incidence of Acute respiratory distress syndrome (ARDS)
30 days
Stroke and transient ischemic attack
Time Frame: 30 days
to compare between groups the incidence of Stroke and transient ischemic attack
30 days
Delirium
Time Frame: 30 days
to compare between groups the incidence of Delirium
30 days
Acute renal failure (AKIN 1 or more)
Time Frame: 30 days
to compare between groups the incidence of Acute renal failure (AKIN 1 or more)
30 days
Length of time in the Intensive Care Unit (ICU) and hospital
Time Frame: 30 days
Length of time in the Intensive Care Unit (ICU) and hospital
30 days
Length of mechanical ventilation
Time Frame: 30 days
Length of mechanical ventilation
30 days
Septic shock
Time Frame: 30 days
to compare between groups the incidence of septic shock
30 days
hospital and ICU readmission rate
Time Frame: 30 days
hospital and ICU readmission rate
30 days
Reoperation
Time Frame: 30 days
number of patients who required reoperation
30 days
Incidence of severe adverse events
Time Frame: 30 days
to compare the incidence of severe adverse outcomes defined as mesenteric ischemia, digital ischemia, hyponatremia (Na<130mEq/L), myocardial infarction or stroke
30 days

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Juliano P Almeida, MD, PhD, University of Sao Paulo
  • Principal Investigator: Tais F Szeles, MD, University of Sao Paulo

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 (Estimated)

January 1, 2019

Primary Completion (Actual)

October 2, 2023

Study Completion (Actual)

October 2, 2023

Study Registration Dates

First Submitted

February 5, 2018

First Submitted That Met QC Criteria

March 29, 2018

First Posted (Actual)

March 30, 2018

Study Record Updates

Last Update Posted (Actual)

October 5, 2023

Last Update Submitted That Met QC Criteria

October 2, 2023

Last Verified

October 1, 2023

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

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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