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Tiny blood samples reveal how heart surgery affects infant immune system

NCT ID NCT04423523

Knowledge-focused Sponsor: Nantes University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study looked at immune markers called DAMPs in 88 young children (3 months or younger) after heart surgery. Researchers collected extra blood samples to measure inflammation-related proteins and gene activity. The goal was to better understand how the body's immune system responds to heart-lung machine use during surgery.

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

88 people

The number who actually took part.

Started

Sep 2020

Finished

Dec 2025

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

All patients admitted to pediatric resuscitation at the Nantes University Hospital after cardiac surgery under CEC ( extra-corporal circulation) and aged less than 3 months meeting the criteria for inclusion and non-inclusion of the study will be included. We can objectify the recruitment of 80 patients in total over 3 years. Since natural evolution (variation of rates and their kinetics) of the secretion of different DAMPs during the first months of life is unknown, the investigators added a control group to know the expression and kinetics of DAMPs outside cardiac surgery under CEC. This control group will be defined by infants under 3 months of age undergoing heavy digestive surgery and having a central venous catheter to facilitate access to blood samples (n = 20).

Ages

Up to 3 months

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: * Patient admitted to pediatric intensive care at Nantes University Hospital after cardiac surgery * Age ≤ 3 months corrected age. * Control group: patients less than 3 months old following cardiac surgery without CPB or digestive surgery with a central venous catheter. Exclusion Criteria: * Futility of care with cessation of blood tests as part of a limitation of active therapies; * Absence of parents for information * Refusal of parents after information (Lack of parental consent) * Blood volume collected for medical purposes incompatible with the needs of the research.

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As listed by the trial registrant

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

Cardiac surgical procedure

Contacts and locations

Locations

  • Nantes University Hospital

    Nantes, 44093, France