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Does blood source matter for clot testing during heart bypass? new study investigates

NCT ID NCT05875272

Knowledge-focused Sponsor: Centre Hospitalier Universitaire, Amiens Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether blood taken from an artery or a vein gives the same clotting time result during heart surgery using a heart-lung machine. The clotting test helps doctors decide how much blood thinner (heparin) to give. 201 adults having heart surgery had paired blood samples tested on two devices. The goal was to see if the test results are reliable regardless of where the blood comes from.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could confirm that either blood source is reliable for guiding heparin dosing during heart-lung machine use, improving safety and convenience.
What could go wrong
This is a small, single-center study that only checks test reliability, not patient outcomes. Results may not apply to other devices or hospitals.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

201 people

The number who actually took part.

Started

Jun 2023

Finished

Jun 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients aged 18 and over, undergoing conventional heart surgery under normothermic Cardiopulmonary Bypass (nadir 34°) (Aortic valve replacement, coronary artery bypass graft surgery, valve plasty, atrial septal defect, ventricular septal defect, intracardiac tumours, heart surgery, ascending aorta, combined surgery…)

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients aged 18 and over, * undergoing conventional heart surgery under normothermic Cardiopulmonary Bypass (nadir 34°) (Aortic valve replacement, coronary artery bypass graft surgery, valve plasty, atrial septal defect, ventricular septal defect, intracardiac tumours, heart surgery, ascending aorta, combined surgery…) * They must be affiliated with Social Security in France, and have given their written consent. Exclusion Criteria: * Minor Patients, * Emergency Cardiac Surgeries, Extracorporeal circulation in hypothermia, Cardiac surgery without CEC * Patients already included in a research protocol, * Patient under guardianship or curators or deprived of public law, * Patient with proven Heparin Induced Thrombopenia (HIT) not receiving heparin * Pregnant woman, breastfeeding or parturient

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardio-pulmonary bypass Extracorporeal circulation Hemostasis Heparin

Contacts and locations

Locations

  • CHU Amiens Picardie

    Amiens, France

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