Infusion of Prostacyclin (Iloprost) vs Placebo for 72-hours in COVID-19 Patients With Respiratory Failure

Phase 2

Completed

• Conditions: COVID-19; Respiratory Failure
• Interventions: Drug: Isotonic saline; Drug: Iloprost

• Registration Number: NCT04420741
• Lead Sponsor: Pär Johansson

Brief Summary

The purpose of this trial is to investigate the efficacy and safety of continuous intravenous administration of low dose iloprost versus placebo for 72-hours, in 80 patients with COVID-19 suffering from respiratory failure. The study hypothesis is that iloprost may be beneficial as an endothelial rescue treatment as it is anticipated to deactivate the endothelium and restore vascular integrity in COVID-19 patients suffering from respiratory failure caused by endothelial breakdown, ultimately improving survival. Given that the pulmonary system, apart from the brain, is the most highly vascularized vital organ in the body, extensive endothelial damage is a central feature of acute respiratory distress syndrome (ARDS) with respiratory failure being the rationale for the current study COMBAT-COVID-19.

Detailed Description

Patients with the most severe type of sepsis, those with septic shock have a mortality rate between 30% to 45% due to multiple organ failure. The poor outcome of shocked patients, and especially those with sepsis, may by related to microvascular endothelial dysfunction.

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by coronavirus 2 (SARS-CoV-2) and, thus, being a novel cause of sepsis. The disease was first identified in 2019 in Wuhan, the capital of Hubei, China, and has since spread globally, resulting in the 2019-20 coronavirus pandemic. Common symptoms include fever, cough and shortness of breath, muscle pain and sputum production. While many cases result in mild symptoms, some progress to pneumonia and multi-organ failure. In particular COVID-19 is associated with ARDS with respiratory failure and high mortality.

Evidence support that iloprost infusion significantly improved endothelial function and integrity, The main objective in this trial is to investigate whether continuous infusion of lov dose iloprost at a dose of 1 ng/kg/min for 72-hours is safe and significantly reduce the need of respiratory support in the intensive care unit (ICU) compared to infusion of placebo in patients with COVID-19 induced pulmonary endotheliopathy (SHINE).

Patients that are eligible for this trial will be temporarily incompetent due to acute severe illness relating to respiratory failure, therefore informed consent will be obtained from a scientific guardian. Next-of kin and subsequently the patient will co-sign as soon as possible hereafter. During the trial, patient will be given continuous infusion of low dose iloprost or placebo for 72 hours and additional blood samples will be obtained at baseline and at 24 hours. Follow up on respiratory failure and mortality will be performed on dag 28 and 90.

This trial is conducted in accordance with the Helsinki 2 Declaration and International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use, Guideline for Good Clinical Practice (ICH-GCP) and in compliance with the protocol. As part of the quality assurance on-site monitoring visit will be performed by the an independent GCP-unit including source data verification. Standard Operation Procedure (SOP) to address protocol specific procedures such as data collection and adverse event reporting are developed.

The number of patients participating is based on a power calculation using the data on days alive and free from mechanical ventilation in the ICU within 28 days from a randomized, double blind, placebo controlled clinical trial in patients with acute respiratory distress syndrome ARDS (NTC 02622724).

The number of patients may be increased if required for regulatory approval for this indication.

Study Timeline

• Study First Submitted: 2020-06-04
• Study First Submitted QC: 2020-06-05
• Study First Posted: 2020-06-09
• Study Start: 2020-06-15
• Primary Completion: 2021-02-23
• Study Completion: 2021-04-23
• Status Verified: 2024-05
• Last Update Submitted: 2024-05-06
• Last Update Posted: 2024-05-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

• Adult intensive care patients (aged 18 years or above)
• Confirmed COVID-19 infection
• Need for mechanical ventilation (< 72 hours at time of screening)
• Soluble thrombomodulin (sTM) ≥ 4 ng/mL

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Exclusion Criteria

• Withdrawal from active therapy
• Pregnancy (non-pregnancy confirmed by patient being postmenopausal (age 60 or above) or having a negative urine- or plasma-hCG)
• Known hypersensitivity to iloprost or to any of the other ingredients.
• Previously included in this trial or a prostacyclin trial within 30 days
• Consent cannot be obtained
• Life-threatening bleeding defined by the treating physician
• Known severe heart failure (NYHA class IV)
• Suspected acute coronary syndrome

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Isotonic saline	Isotonic saline	Patients randomized to placebo treatment (n=40 patients) will receive continuous infusion of placebo for 72 hours after inclusion or until discharge to ward or death, whichever comes first.
Iloprost	Iloprost	Patients randomized to active treatment (n=40 patients) will receive continuous infusion of iloprost for 72 hours after inclusion or until discharge to ward or death, whichever comes first.

Primary Outcome Measures

Name	Time	Method
Mechanical ventilation free days	Until ICU discharge, maximun 28 days after randomization	Days alive without mechanical ventilation in the ICU within 28 days

Secondary Outcome Measures

Name	Time	Method
28 and 90-day mortality	Day 28 and 90 after randomization	Vital status of the patient at day 28 and day 90
Modified Sequential Organ Failure Assessment (SOFA)	Until ICU discharge, maximun 90 days after randomization	Mean daily modified SOFA score in the intensive care unit (scores for each of five systems range from 0 to 4, with higher scores indicating more severe dysfunction; range score 0-20).
Vasopressor free days	Until ICU discharge, maximun 90 days after randomization	Days alive without vasopressor in the ICU within 28-and 90 days
Renal replacement free days	Until ICU discharge, maximun 90 days after randomization	Days without renal replacement in the ICU within 28 -and 90 days
Mechanical ventilation free days	Until ICU discharge, maximun 90 days after randomization	Days alive without mechanical ventilation in the ICU within 90 days
Serious adverse reactions (SARs)	Until day 7 after randomization	Numbers of serious adverse reactions within the first 7 days
Serious adverse events (SAEs)	Until day 7 after randomization	Numbers of serious adverse events within the first 7 days

Trial Locations

Locations (5)

Dept. of Anaesthesia and Intensive Care, Bispebjerg Hospital; 🇩🇰 Copenhagen, Denmark

Dept. of Intensive Care, Copenhagen University Hospital, Rigshospitalet; 🇩🇰 Copenhagen, Denmark

Dept. of Intensive Care, Copenhagen University Hospital Herlev; 🇩🇰 Herlev, Denmark

Dept. of Anaesthesia and Intensive Care, Nordsjaelands Hospital; 🇩🇰 Hillerød, Denmark

Dept. of Anaesthesia and Intensive Care, Hvidovre Hospital; 🇩🇰 Hvidovre, Denmark