Safety and Efficacy of Low-dose Anticoagulation With Argatroban and Enoxaparin on ECMO

March 27, 2026 updated by: University Hospital Ostrava

Low-dose Versus Standard-dose Anticoagulation With Argatroban and Enoxaparin During Extracorporeal Membrane Oxygenation Controlled by Anti-IIa and An-ti-Xa, Respectively

The standard and most common therapy is anticoagulation with heparin according to activated partial thromboplastin time (aPTT) during extracorporeal membrane oxygenation (ECMO) support. The study will focus on evaluating the efficacy and safety of new anticoagulants on ECMO, namely argatroban and enoxaparin in lower doses controlled according to targeted antiIIa and antiXa markers.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a phase II academic clinical trial designed to evaluate the effect of argatroban and enoxaparin used to enable ECMO support in critically ill patients. The population will consist of patients hospitalised at University Hospital Ostrava and University Hospital Motol Prague. After signing the Informed Con-sent to participate in the study, treatment will be based on the patient's clinical condition and the decision of the attending physician. The study participants will be patients diagnosed with heart failure (including cardiac arrest) or pulmonary failure, adult men and women, using argatroban or enoxaparin.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Czechia
      • Prague, Czechia, 150 00
        • University Hospital Motol
        • Contact:
        • Principal Investigator:
          • Jaromír Vajter, MD,Ph.D.
    • Moravian-Silesian Region
      • Ostrava, Moravian-Silesian Region, Czechia, 708 52
        • University Hospital Ostrava
        • Contact:
        • Principal Investigator:
          • Filip Burša, MD,Ph.D.,EDEC

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • ECMO support with anticoagulation using argatroban/enoxaparin
  • Age ≥ 18 years
  • Obtaining informed consent in accordance with the procedure specified in the protocol

Exclusion Criteria:

  • Enrolment in the lung transplant program at Motol University Hospital
  • Known hypersensitivity to the components of the evaluated products
  • Allergic reaction to the active ingredients of the evaluated products
  • Pregnancy and breastfeeding

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Low anticoagulation dose of argatroban and enoxaparin during ECMO
Study subjects in this group will receive low anticoagulation dose of argatroban and enoxaparin during ECMO.
Drug: Low anticoagulation dose of argatroban and enoxaparin during ECMO
Study subjects in this group will receive low anticoagulation dose of argatroban and enoxaparin during ECMO
Experimental: Standard anticoagulation dose of argatroban and enoxaparin during ECMO
Study subjects in this group will receive standard anticoagulation dose of argatroban and enoxaparin during ECMO.
Drug: Standard anticoagulation dose of argatroban and enoxaparin during ECMO
Study subjects in this group will receive standard anticoagulation dose of argatroban and enoxaparin during ECMO

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Safety of bleeding complications
Time Frame: During ECMO, up to 4 weeks
Bleeding Academic Research Consortium (BARC) score will be used to assess bleeding complication.
During ECMO, up to 4 weeks
Safety of thrombotic complications
Time Frame: During ECMO, up to 4 weeks
ECMO pressures (e.g. oxygenator changes) will be used to assess thrombotic complications
During ECMO, up to 4 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Mortality
Time Frame: 6 months
Hospital mortality and 6-month mortality will be assessed
6 months
Cerebral Performance Category (CPC) score
Time Frame: 30 days
Cerebral Performance Category (CPC) score will be assessed on the 30th day after ECMO initiation
30 days
Quality of Life questionnaires score - EQ-5D-5L
Time Frame: 6 months
Quality of Life will be assessed using the EQ-5D-5L questionnaire 6 months after ECMO initiation. The EQ-5D-5L questionnaire is a quick, 5-dimension preference-based tool (mobility, self-care, activities, pain, anxiety) with a visual analog scale (VAS).
6 months
Quality of Life questionnaires score - SF36
Time Frame: 6 months
Quality of Life will be assessed using the SF36 questionnaire 6 months after ECMO initiation. SF-36 is a comprehensive 36-item survey assessing eight health domains.
6 months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital Ostrava

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University Hospital, Motol

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Filip Burša, MD,Ph.D.,EDEC, University Hospital Ostrava

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2027

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 18, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 24, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 27, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 27, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • KARIM-ECMO

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

There is no plan to make individual participant data available to other researchers. The data may be provided upon reasonable request.

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings