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The Focus is on the Detection of the Consequences of Autologous Blood Transfusion in Healthy VolunteersAUTOT-SPORTNCT03889834

Biological Parameters Changes After Autologous Blood Transfusion of Red Blood Cells (200 ml) in Healthy Volunteers.

A study testing Autologous Blood Transfusion and No transfusion in people with The Focus is on the Detection of the Consequences of Autologous Blood Transfusion in Healthy Volunteers, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate if differences between samples of subjects obtained before autologous blood transfusion or samples of non-transfused subjects and samples of subjects after autologous blood transfusion can be identified. Read more about this study

Who is it for?
Ages 18 to 35 years, men onlyHealthy volunteers can take part
What is being tested?
Autologous Blood Transfusion and No transfusion
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
1 siteFrance
Study dates
25 Jan 2024to 2 Apr 2026
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 35 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male between 18 and 35 years old
  • Without health problem nor disease requiring regular medical treatment
  • Free from any intercurrent acute pathology over 7 days
  • Healthy volunteers who have regularly sport activity, able to have blood sample and is out-of-competition during the research
  • Subject who did not practice a competition (or exhaustive training ) 3 days before the blood sample and the autotransfusion
  • Affiliated to a social security regimen

Who cannot join

  • Subject with contraindication for drawing blood
  • Subject with medical pathology contraindicating sport practice
  • Subject under treatments or drugs in the list of products prohibited for sports practice and competitions, in particular erythropoeitins and erythropoiesis-stimulating agents (updated list of World Anti-Doping Agency https://www.wada-ama.org/fr/liste-des-restrictions).
  • Subject with physical or mental disability or restriction of liberty that would prevent autotransfusion
  • Subject without a social security regimen
  • Subject under guardianship or curatorship
Show all 9Show fewer
  • Subject participating in any Interventional study
  • Positive HIV and/or hepatitis serology
  • Discovery of a hematological disease

Trial locations and contacts

1 site in 1 country.

France1 site
  • EFS de Versailles, centre de soins

    Chesnay, Île-de-France Region, 78150

Other trials in France

About this study

Official title: Modification of Biological Parameters After Autologous Blood Transfusion of a Small Volume of Packed Red Blood Cells (200 ml) in Healthy Volunteers

The purpose of this study is to evaluate if differences between samples of subjects obtained before autologous blood transfusion or samples of non-transfused subjects and samples of subjects after autologous blood transfusion can be identified. Analyses performed will focus on the morphological and biochemical parameters of red blood cells and associated microparticles. The final goal would be to find markers of autologous blood transfusion, that could be used to identify such doping practice.

Read the detailed description

Methodology and study design:

Pr Olivier Hermine, coordinator of the laboratory of Excellence GR-EX regrouping EFS (Etablissement Français du Sang) and INSERM (Institut National de la Santé et de la Recherche Médicale) partners, and leader of the Centre d'Investigation Clinique (CIC) Necker (Hospital Necker, Paris, France) will assure the promotion of the clinical study for Paris Hospital consortium AP-HP (assistance Publique-Hôpitaux de Paris).

To reproduce two potential scenarios of autologous transfusion by an athlete, 1 bag of blood packed red blood cells (after leuko deprivation and centrifugation) will be either stored at 4°C or frozen at -80°C after addition of 40% w/v glycerol. Reinfusion will be performed 33 days later.

A clinical randomized double-blinded two-phase study will be conducted. Volunteers will be separated in 3 groups:

  • Group 1: Volunteers with regular sports activities without Autologous Blood Transfusion (ABT)T (n=10)
  • Group 2: Volunteers with regular sports activities receiving a 200ml ABT with refrigerated blood (n=10)
  • Group 3: Volunteers with regular sports activities receiving a 200ml ABT with frozen blood (n=10)

To ensure volunteers safety, collection, preparation and pretransfusion blood testing will be performed by EFS (Versailles, France). ABT as well as collection of samples will be performed at the CIC Necker (Paris, France). Blood samples will be collected before blood removal, the day of the ABT just before reinfusion and after 3 hours, 8 hours, 24 hours and 48 hours post-ABT. To perform all the experiments 25ml blood (4x 5 ml BD Vacutainer EDTA tubes) will be taken at each time point:

1 will be dispatched to the French anti-doping laboratory (LADF) for haematological analysis (Orsay, France), 2 to the EFS (Créteil, France) for RBC and MPs morphological characterization and quantification (using antigen markers, band 3 on the surface of MPs), 2 to INTS for MPs isolation, characterization (band 3 on the surface of MPs and RBC) and for proteomic analysis and Western-Blot.

Being tested
Autologous Blood Transfusion, No transfusion
Keywords
autologous transfusion, doping, blood markers, detection

What participants receive

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

  • Autologous Blood TransfusionProcedure or surgery

    Autotransfusion of packed red blood cells (200 ml) stored at 4 or -80°C for 33 days

  • No transfusionOther

    no transfusion

Study groups in NCT03889834
Study groupRoleWhat they receive
Autotransfusion: blood stored at 4 ° CExperimentalIntervention: Autologous Blood Transfusion of packed red blood cells (200 ml) stored at 4 ° C for 33 days
Receives: Procedure: Autologous Blood Transfusion
Autotransfusion: blood stored at -80°CExperimentalIntervention: Autologous Blood Transfusion of packed red blood cells (200 ml) stored at -80°C for 33 days
Receives: Procedure: Autologous Blood Transfusion
Controls not transfusedOtherno transfusion
Receives: Other: No transfusion

What is being measured

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

  1. Change in hematological parameters

    erythrocytes (/µL)

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  2. Change in hematological parameters

    hemoglobin (g/dL)

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  3. Change in hematological parameters

    Hematocrit (%)

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  4. Change in hematological parameters

    Mean corpuscular volume (fL)

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  5. Change in hematological parameters

    Reticulocyte by Sysmex analyzer

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  6. Variation in Red blood cells morphology

    By amnis imaging flow cytometryProteins in Red blood cells (Wblot/ELISA/FACS)

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  7. Change in expression of cell surface proteins in red blood cells transfusion

    Western blot /ELISA/ fluorescence-activated cell sorting of red blood cells

    Measured: Baseline (Day 1), until 2 days after autotransfusion

  8. Change in microparticles detected in plasma

    fluorescence-activated cell sorting

    Measured: Baseline (Day 1), until 2 days after autotransfusion

Secondary outcomes (1)
  1. Change in phthalate in urine

    Assay by LC-MS/MS in urine

    Measured: Baseline (Day 1), until 2 days after autotransfusion

Timeline

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

  1. First posted26 Mar 2019
  2. Study start25 Jan 2024
  3. Primary completion27 Mar 2025
  4. Study completion2 Apr 2026

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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03889834
Sponsor's protocol ID
K180405J
Acronym
AUTOT-SPORT
Status last verified
Apr 2026
First submitted
18 Feb 2019
Last updated
23 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Autologous Blood Transfusion and No transfusion in people with The Focus is on the Detection of the Consequences of Autologous Blood Transfusion in Healthy Volunteers, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

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 6 inclusion and 9 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: finished, as of the sponsor's last update on 23 Apr 2026. 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 France. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change in hematological parameters (time frame: Baseline (Day 1), until 2 days after autotransfusion). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Apr 2026.

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