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Clinical Trial Details — Status: Suspended

Administrative data

NCT number NCT04385771
Other study ID # CYCOV-II
Secondary ID
Status Suspended
Phase N/A
First received
Last updated
Start date September 1, 2020
Est. completion date October 31, 2021

Study information

Verified date March 2021
Source University Hospital Freiburg
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In December 2019 in the city of Wuhan in China, a series of patients with unclear pneumonia was noticed, some of whom have died of it. In virological analyses of samples from the patients' deep respiratory tract, a novel coronavirus was isolated (SARS-CoV-2). The disease spread rapidly in the city of Wuhan at the beginning of 2020 and soon beyond in China and, in the coming weeks, around the world. Initial studies described numerous severe courses, particularly those associated with increased patient age and previous cardiovascular, metabolic and respiratory diseases. A small number of the particularly severely ill patients required not only highly invasive ventilation therapy but also extracorporeal membrane oxygenation (vv-ECMO) to supply the patient's blood with sufficient oxygen. Even under maximum intensive care treatment, a very high mortality rate of approximately 80-100% was observed in this patient group. In addition, high levels of interleukin-6 (IL-6) could be detected in the blood of these severely ill patients, which in turn were associated with poor outcome. From experience in the therapy of severely ill patients with severe infections and respiratory failure, we know that treatment with a CytoSorb® adsorber can lead to a reduction of the circulating pro- and anti-inflammatory cytokines and thus improve the course of the disease and the outcome of the patients. The aim of the study is to investigate the influence of extracorporeal cytokine adsorption on interleukin-6-levels and time to successful ECMO explantation under controlled conditions in patients with particularly severe COVID-19 disease requiring extracorporeal membrane oxygenation.


Description:

In December 2019, a series of unexplained cases of pneumonia in the city of Wuhan in China has come to light. In virologic analyses of samples from the patients' deep respiratory tract, a novel coronavirus was isolated (first named 2019-nCoV, then SARS-CoV-2). The disease spread rapidly in the city of Wuhan in early 2020 and soon beyond. On 30 January 2020, the Director-General of the World Health Organization (WHO) declared the outbreak a public health emergency of international concern, and on 11 March 2020, the World Health Organization declared the virus a pandemic. In humans, an infection with the virus can cause respiratory tract infections or even very severe pneumonia - these often end fatally, especially in old and pre-diseased patients. Due to the novelty of the virus, the data basis for therapy is very limited. To date, there are no clinical data for an effective specific therapy, nor is there a vaccination against the virus available, so that therapy, especially intensive care treatment for very severe courses, must concentrate only on supportive treatment of lung failure and other complications. The virus is highly contagious and infection results in a relevant number of deaths. Due to very uncertain data on the spread of the virus in the population, it is difficult to estimate the mortality rate - the case fatality rate is about 4% based on the known case numbers. In reports on the treatment of the first cases in Wuhan (Hubei Province, China) in January 2020, the need for intensive care treatment is described for about a quarter of the inpatient cases, 10-17% had to be ventilated invasively, and veno-venous extracorporeal membrane oxygenation (vv-ECMO) was necessary in 2-4% of the inpatient cases. Patients requiring ECMO have an extremely high mortality rate of 83-100% in the studies published, so far. In severe cases a pronounced release of vasoactive cytokines was repeatedly observed. Excessive release of these vasoactive mediators ("cytokine storm") can result in severe vasodilatation and membrane leakage, which can ultimately lead to vasoplegic shock that is difficult to control. Ruan et al. and Zhou et al. have identified high interleukin 6 (IL-6) levels as a potential predictor of a fatal outcome when compared between survivors and patients who died of COVID-19 disease. IL-6 is also an important factor in the pathophysiology of severe septic shock and excessive immune response in hemophagocytic lymphohistiocytosis (HLH) - for both indications has been shown, that the extracorporeal adsorption of IL-6 and other vasoactive substances in a CytoSorb® adsorber (CytoSorbents Corporation, Monmouth Junction, NJ, USA) leads to a significant reduction of these cytokines in the patient blood. Clinical experience and (previously unpublished) data from our monocentric registry study show that cytokine adsorption in a CytoSorb® Adsorber can also be safely integrated into a vv-ECMO system.


Recruitment information / eligibility

Status Suspended
Enrollment 80
Est. completion date October 31, 2021
Est. primary completion date May 31, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 100 Years
Eligibility Inclusion Criteria: - SARS-CoV-2-infection with COVID-pneumonia - vv-ECMO therapy Exclusion Criteria: - known patient will against participation in the study or against the measures applied in the study - a decision (made prior to inclusion of the patient into this trial) to terminate the treatment within the next 24 hours

Study Design


Related Conditions & MeSH terms


Intervention

Device:
vv-ECMO + cytokine adsorption (Cytosorb adsorber)
in COVID-19-diseased vv-ECMO patients additional treatment with cytokine adsorption using a Cytosorb adsorber will be randomized (vs. control group)
vv-ECMO only (no cytokine adsorption)
COVID-19-diseased treated with vv-ECMO

Locations

Country Name City State
Germany University Clinic Freiburg Freiburg
Germany Klinikum Ibbenbueren Ibbenbueren
Germany Klinikum Ludwigsburg Ludwigsburg

Sponsors (8)

Lead Sponsor Collaborator
Dr. Alexander Supady Klinikum Ibbenbüren, Klinikum Ludwigsburg, Ludwig-Maximilians - University of Munich, Martin-Luther-Universität Halle-Wittenberg, SLK-Kliniken Heilbronn, University Hospital, Saarland, University of Ulm

Country where clinical trial is conducted

Germany, 

Outcome

Type Measure Description Time frame Safety issue
Primary IL-6 reduction by 75% or more after 72 hours as compared to the baseline measurement measurement of IL-6 levels in patient blood after 72 hours of cytokine adsorption (in relation to level before initiation of cytokine adsorption) 72 hours
Primary time to successful ECMO-explantation time to successful ECMO-explantation within 30 days after randomization 30 days
Secondary Ventilator free days (VFD) Ventilator free days (VFD) in the first 30 days after randomization, where invasive mechanical ventilation (IMV), non-invasive ventilation (NIV) and ECMO are defined as ventilator days. VFD=0, if the patient dies in the first 30 days after randomization 30 days
Secondary Time to extubation from ventilation and explantation from ECMO Time to extubation from ventilation and explantation from ECMO. Death under ventilation and/or ECMO will be analyzed as a competing event. The time will be censored at the time of last visit for surviving patients under ventilation and/or ECMO. 30 days
Secondary Overall survival time Overall survival time, defined as time from randomization to death. The time will be censored at the time of last visit for surviving patients. 30 days
Secondary Days on intensive care unit (ICU) Days on intensive care unit (ICU) 30 days
Secondary Vasopressor dosage Vasopressor dosage of adrenaline, noradrenaline, vasopressin, and dobutamine at 24, 48,72 h 24, 48, 72 hours
Secondary Fluid substitution and fluid balance Total fluid[ml] substitution and fluid balance [ml] at 24, 48, 72 h 24, 48, 72 hours
Secondary Serum lactate Serum lactate at 24, 48, 72 h 24, 48, 72 hours
Secondary Urine output Urine output at 24, 48, 72 h 24, 48, 72 hours
Secondary Willebrand factor Willebrand factor at 24, 48, 72 h 24, 48, 72 hours
Secondary d-dimers d-dimers at 24, 48, 72 h 24, 48, 72 hours
Secondary interleukin-6 levels interleukin-6 levels at 24, 48, 72 h 24, 48, 72 hours
Secondary SOFA-Score Sequential Organ Failure Assessment Score at 24, 48, 72 h (values from 6 to 24, where the higher values explain higher disease severity) 24, 48, 72 hours
Secondary serious adverse device effects serious complications or malfunctions related to the CytoSorb device 30 days
Secondary adverse event of special interest: air in the ECMO system unintended air in the ECMO system during operation of the device 30 days
Secondary adverse event of special interest: blood-clotting in the ECMO system unintended blood-clotting in the ECMO system during operation of the device 30 days
Secondary adverse event of special interest: bleeding complications major bleeding events 30 days
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