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HypothermiaNCT02258360

Hypothermia and Hemostasis After Cardiac Arrest

A study testing Therapeutic hypothermia in people with Hypothermia and Heart Arrest, run by University of Aarhus at 1 site in Denmark.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is a sub-study to the Time-differentiated Therapeutic Hypothermia (TTH48, ClinicalTrials.gov Identifier: NCT01689077). TTH48 compares 24 with 48 hours of therapeutic hypothermia at a target temperature of 32-34°C in survivors of out-of-hospital cardiac arrest. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Hypothermia, Heart Arrest, Hemostasis
What is being tested?
Therapeutic hypothermia
Could I receive a placebo?
No, everyone receives an active treatment
How many people
82 participants
Where
1 siteDenmark
Study dates
Feb 2013to Jun 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Out of hospital cardiac arrest of presumed cardiac cause
  • Return of spontaneous circulation (ROSC)
  • Glasgow Coma Score < 8
  • Age > 18 years and < 80 years

Who cannot join

  • > 60 minutes from the circulatory collapse to ROSC
  • Time interval > 4 hours from cardiac arrest to initiation of therapeutic hypothermia
  • Terminal illness
  • Coagulation disorder
  • Unwitnessed asystolia
  • Cerebral performance category 3-4 before the cardiac arrest
Show all 13Show fewer
  • Severe persistent cardiogenic shock
  • Pregnancy
  • Persistent cardiogenic shock (systolic blood pressure < 80 despite inotropic treatment)
  • New apoplexy or intracerebral hemorrhage
  • Lack of consent from the relatives
  • Lack of consent from the GP
  • Lack of consent from the patient if he/she wakes up and is relevant

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Dept of Anesthesiology and Intensive Care and Dept of Clinical Biochemistry, Aarhus University Hospital, Skejby

    Aarhus, Aarhus N, 8200

Other trials in Denmark

About this study

Official title: The Effect of Therapeutic Hypothermia After Cardiac Arrest on the Haemostasis.

This is a sub-study to the Time-differentiated Therapeutic Hypothermia (TTH48, ClinicalTrials.gov Identifier: NCT01689077). TTH48 compares 24 with 48 hours of therapeutic hypothermia at a target temperature of 32-34°C in survivors of out-of-hospital cardiac arrest.

The overall aim of this sub-study is to examine the hemostasis in patients resuscitated after cardiac arrest and treated with 24 and 48 hours of therapeutic hypothermia

Our specific aims are:

  • To investigate the whole blood coagulation using the rotational thromboelastometry.
  • To investigate the function of platelets
Being tested
Therapeutic hypothermia
Keywords
Thromboelastometry, Haemostasis, Hypothermia, Heart Arrest
Medical subject headings
Hypothermia, Heart Arrest

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Therapeutic hypothermiaOther

    Therapeutic hypothermia with a target temperature between 32-34°C.

Study groups in NCT02258360
Study groupRoleWhat they receive
24 hours hypothermiaActive comparatorTherapeutic hypothermia for 24 hours after reaching target temperature
Receives: Other: Therapeutic hypothermia
48 hours hypothermiaExperimentalTherapeutic hypothermia for 48 hours after reaching target temperature
Receives: Other: Therapeutic hypothermia

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Clotting time in seconds, EXTEM

    Measured by thomboelastometry on the ROTEM®

    Measured: After 46 hours

  2. Area under the curve, COL-test

    Platelet function will be measured using Multiplate®

    Measured: After 46 hours

Secondary outcomes (10)
  1. Clotting time in seconds, EXTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours and 70 hours

  2. Clotting time in seconds, -INTEM, FIBTEM and HEPTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours, 46 hours and 70 hours

  3. Clot formation time in seconds, -EXTEM, INTEM, FIBTEM and HEPTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours, 46 hours and 70 hours

  4. Maximum clot firmness (mm), -EXTEM, INTEM, FIBTEM and HEPTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours, 46 hours and 70 hours

  5. Area under the curve, COL-test

    Platelet function will be measured using Multiplate®.

    Measured: After 22 hours and 70 hours

  6. Area under the curve,- ADP, ASPI and TRAP-test.

    Platelet function will be measured using Multiplate®.

    Measured: After 22 hours, 46 hours and 70 hours

  7. Time to maximum velocity (s), -EXTEM, INTEM, FIBTEM and HEPTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours, 46 hours and 70 hours

  8. Maximum velocity (mm/min), -EXTEM, INTEM, FIBTEM and HEPTEM

    Measured by thomboelastometry on the ROTEM®.

    Measured: After 22 hours, 46 hours and 70 hours

  9. Area under the curve, Clot stability test

    Measured: After 22 hours, 46 hours and 70 hours

  10. Area under the curve, Thrombin generation

    Measured: After 22 hours, 46 hours and 70 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Oct 2014 (estimated)
  2. Study startFeb 2013
  3. Primary completionJun 2015
  4. Study completionJun 2017 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
82 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02258360
Sponsor's protocol ID
PROID7005
Status last verified
Mar 2016
First submitted
29 Aug 2014
Last updated
29 Mar 2016
Results posted
No

Publications

  • Jeppesen AN, Duez C, Kirkegaard H, Grejs AM, Hvas AM. Fibrinolysis in Cardiac Arrest Patients Treated with Hypothermia. Ther Hypothermia Temp Manag. 2023 Sep;13(3):112-119. doi: 10.1089/ther.2022.0037. Epub 2022 Dec 6.

    PubMed 36473198
  • Jeppesen AN, Hvas AM, Duez CHV, Grejs AM, Ilkjaer S, Kirkegaard H. Prolonged targeted temperature management compromises thrombin generation: A randomised clinical trial. Resuscitation. 2017 Sep;118:126-132. doi: 10.1016/j.resuscitation.2017.06.004. Epub 2017 Jun 7.

    PubMed 28602694

Questions about this trial

What is this clinical trial studying?

A study testing Therapeutic hypothermia in people with Hypothermia and Heart Arrest, run by University of Aarhus at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 29 Mar 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Clotting time in seconds, EXTEM (time frame: After 46 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02258360, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Mar 2016.

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