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Infant, Extremely PrematureNCT05612919

Red Blood Cells From Umbilical Cord for Transfusion of Preterm Infants

A study testing Red blood cell from umbilical cord blood and Red blood cell from adult donor in people with Infant, Extremely Premature and Erythrocyte Transfusion, run by Hospital Clinic of Barcelona at 1 site in Spain.

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

This study has been designed to demonstrate that red blood cell from umbilical cord blood (UCB-RBC) is a safe and available product for extremely preterm infants (EPI) transfusion and that transfusion of UCB-RBC is non-less effective than RBC from adult donor for the treatment of anemia of prematurity in this group of… Read more about this study

Who is it for?
Ages Up to 12 weeks
What is being tested?
Red blood cell from umbilical cord blood and Red blood cell from adult donor
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteSpain
Study dates
13 Sep 2023to 12 Jul 2025
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 Up to 12 weeks
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Signed informed consent from parents or legal guardians
  • Preterm infants born earlier than 28 weeks of gestational age.
  • Admission to the neonatal intensive care unit of the participating hospital (Hospital Clínic of Barcelona)

Who cannot join

  • Previous transfusion
  • Isoimmunization
  • Hydrops fetalis
  • Major congenital malformations
  • Congenital infections
  • Hemoglobinopathies
  • Extreme urgency of blood availability (hypovolemic shock, disseminated intravascular coagulopathy...)
  • Be part of another clinical trial that may interfere with the results

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Hospital Clinic of Barcelona

    Barcelona, Barcelona, 08028

Other trials in Spain

About this study

Official title: Safety, Feasibility and Efficacy of Red Blood Cells From Umbilical Cord Blood for Transfusion of Extremely Preterm Infants: Clinical Phase

This study has been designed to demonstrate that red blood cell from umbilical cord blood (UCB-RBC) is a safe and available product for extremely preterm infants (EPI) transfusion and that transfusion of UCB-RBC is non-less effective than RBC from adult donor for the treatment of anemia of prematurity in this group of patients.

Read the detailed description

Prematurity is an important maternal and child health problem due to its incidence and associated complications. Anaemia is a frequent problem in extremely preterm infants (EPI) whose treatment often requires red blood cell (RBC) transfusion. This product is currently obtained from adult blood (AB) donor. The incidence of some prematurity complications have been demonstrated to increase with AB-RBC tranfusions mainly because of the higher oxygen tissue release, such as retinopathy of prematurity (ROP), bronchopulmonary dysplasia (BPD), and necrotizing enterocolitis (NEC). In addition, AB-RBC could contain small amounts of heavy metals that could be toxic for EPI.

RBC from umbilical cord blood (UCB-RBC) might be a better alternative as it does not change the hemoglobin profile and consequently might decrease the oxygen toxicity.

Several studies have evaluated the safety of UCB-RBC transfusions in preterm infants without finding a higher risk of complications compared with AB-RBC transfusions.

A pilot study has been designed to evaluate the safety of UCB-RBC for transfusion in EPI and to determine the feasibility and efficacy of UCB-RBC for transfusion in this group of patients.

Being tested
Red blood cell from umbilical cord blood, Red blood cell from adult donor
Keywords
Anaemia of prematurity, Extremely preterm infants, Umbilical cord blood, Blood bank, Fetal hemoglobin
Medical subject headings
Anemia, beta-Thalassemia

What participants receive

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

  • Red blood cell from umbilical cord bloodOther

    Patients will receive a volume of 15-20 ml/kg of red blood cell from umbilical cord blood (UCB-RBC). The transfusion will be prescribed and administered with all the routine safety measures carried out by the nurses to ensure compatibility between the administered RBC and the patient. The UCB-RBC bags will contain a minimum volume of 20 mL of RBC, with a haematocrit of about 60% and an acceptable residual leucocyte content of <106/mm3.

    Product validation is currently under development.

  • Red blood cell from adult donorOther

    Patients will receive a volume of 15-20 ml/kg of red blood cell from adult donor according to standard guidelines.

    The transfusion will be prescribed and administered with all the routine safety measures carried out by the nurses to ensure compatibility between the administered RBC and the patient.

    Blood samples are irradiated according to standard practise.

Study groups in NCT05612919
Study groupRoleWhat they receive
Patients exclusively transfused with UCB-RBCExperimentalInterventional group infants arm will receive UCB-RBC bag when RBC transfusion is indicated as per standard practice, and when UCB-RBC is available within the first 6 hours of the request.
Receives: Other: Red blood cell from umbilical cord blood
Patients exclusively transfused with AB-RBCActive comparatorStandard treatment group infants arm will receive AB-RBC when RBC transfusion is indicated as per standard practice, and compatible UCB-RBC bag is not available.
Receives: Other: Red blood cell from adult donor
Non transfused patientsNo interventionPatients with no indications for RBC transfusion. Their clinical management will be the usual in our neonatal unit.

What is being measured

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

  1. Number of participants with abnormal physical examination after red blood cells from umbilical cord blood (UCB-RBC) transfusion

    The number of participants with abnormal physical examination after UCB-RBC transfusion will be analyzed to evaluated the safety of UCB-RBC in extremely preterm infants (EPI)

    Measured: 24 hours after the procedure

  2. Number of participants with abnormal vital signs after UCB-RBC transfusion

    The number of participants with abnormal physical examination after UCB-RBC transfusion will be analyzed to evaluated the safety of UCB-RBC in EPI

    Measured: 24 hours after the procedure

  3. Number of participants with altered value of continous monitoring of regional cerebral and somatic oxygen saturation by near-infrared spectroscopy after UCB-RBC transfusion

    The number of participants with Altered value of continous monitoring of regional cerebral and somatic oxygen saturation by near-infrared spectroscopy after UCB-RBC transfusion will be analyzed to evaluated the safety of UCB-RBC in EPI

    Measured: 24 hours after the procedure

  4. Number of participants with abnormalities in the result of acid-base balance and ionogram after UCB-RBC transfusion

    The number of participants with abnormalities in the result of acid-base balance and ionogram after UCB-RBC transfusion will be analyzed to evaluated the safety of UCB-RBC in EPI

    Measured: 24 hours after the procedure

  5. Number of participants with morbidities up to 36 weeks of postmenstrual age after UCB-RBC transfusion

    The number of participants with Morbidities up to 36 weeks of postmenstrual age after UCB-RBC transfusion will be analyzed to evaluated the safety of UCB-RBC in EPI

    Measured: 24 hours after the procedure

Secondary outcomes (8)
  1. Feasibility of UCB-RBC in EPI

    Feasibility will be considered proven if UCB-RBC is available in >50% of patients

    Measured: within 6 hours of the request

  2. Total volumen of RBC transfused in transfused patients

    Total volumen of RBC transfused measured in milliliters will be evaluated to assess the efficacy of UCB-RBC in EPI according to the treatment group (only UCB-RBC, only AB-RBC, both)

    Measured: An average of 3 month (when patients are 36 weeks of postmenstrual age)

  3. Number of RBC tranfusions in transfused patients

    The total number of RBC transfusions will be evaluated to assess the efficacy of UCB-RBC in EPI according to the treatment group (only UCB-RBC, only AB-RBC, both)

    Measured: An average of 3 month (when patients are 36 weeks of postmenstrual age)

  4. The number of days between two consecutive RBC transfusion in transfused patients

    The number of days between two consecutive RBC transfusion in each transfused patient will be evaluated to assess the efficacy of UCB-RBC in EPI according to the treatment group (only UCB-RBC, only AB-RBC, both)

    Measured: An average of 3 month (when patients are 36 weeks of postmenstrual age)

  5. Total hemoglobin value (g/dl) in transfused patients

    Total hemoglobin (g/dl) in transfused patients will be evaluated to assess the efficacy of UCB-RBC in EPI according to the type of transfusion (UCB-RBC vs AB-RBC) An increment in total hemoglobin by 4 ± 2 g / dL 24 hours after the transfusion will be considered significative. Samples will be analysed by microhematocrit method ("Rapidpoint 5000 system, Siemens").

    Measured: Before transfusion, 24 hours, 1 week, 1 month after transfusion

  6. Hematocrit value (%) in transfused patients

    Hematocrit (%) in transfused patients will be evaluated to assess the efficacy of UCB-RBC in EPI according to the type of transfusion (UCB-RBC vs AB-RBC) An increment in hematocrit by 12 ± 5 points 24 hours after the transfusion will be considered significative. Samples will be analysed by microhematocrit method ("Rapidpoint 5000 system, Siemens").

    Measured: Before transfusion, 24 hours, 1 week, 1 month after transfusion

  7. Fetal haemoglobin value (%) in transfused patients

    Fetal haemoglobin (%) in transfused patients will be evaluated to assess the efficacy of UCB-RBC in EPI according to the type of transfusion (UCB-RBC vs AB-RBC) A variation of fetal haemoglobin percentage between values before and after the transfusion will be considered significative. It will be analysed by capillary electrophoresis ("Capillary neonatal Hb" kit).

    Measured: Before transfusion, 24 hours, 1 week, 1 month after transfusion

  8. Regional cerebral and somatic oxygen saturation (%) value

    Regional cerebral and somatic oxygen saturation (%) in transfused patients will be evaluated to assess the efficacy of UCB-RBC in EPI according to the type of transfusion (UCB-RBC vs AB-RBC). Measurements will be taken by near-infrared spectroscopy

    Measured: Before transfusion, 24 hours, 1 week, 1 month after transfusion

Timeline

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

  1. First posted10 Nov 2022
  2. Study start13 Sep 2023
  3. Primary completion12 Jul 2025
  4. Study completion12 Jul 2025

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
Non-randomised
Intervention model
Parallel groups
Model description
This is a pilot, open, non-randomized, single-center clinical study, whose main objective is to evaluate the safety, feasibility and efficacy of red blood cell from umbilical cord blood (UCB-RBC) transfusion in extremely preterm infants (EPI). When infants fit criteria for red blood cells transfusion the blood bank of reference will be contacted and availability of compatible UCB-RBC bags within those 6 hours will be checked. When it is possible (available compatible UCB-RBC bag within 6 hours), UCB-RBC will be transfused, otherwise patient will receive RBC from adult donor. Patients who initially received RBC from adult donor will remain in this group if repeated transfusions are needed. In patients who initially received UCB-RBC transfusion, availability of compatible UCB-RBC bags will have to be reviewed again. Only when it is not possible to transfuse UCB-RBC at this repeated occasion, the patient will receive RBC from adult blood donor.
Masking
None (open label)
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05612919
Sponsor's protocol ID
BST-TSCU-01
Status last verified
Sep 2023
First submitted
5 Apr 2022
Last updated
28 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Widness JA. Pathophysiology of Anemia During the Neonatal Period, Including Anemia of Prematurity. Neoreviews. 2008 Nov 1;9(11):e520. doi: 10.1542/neo.9-11-e520.

    PubMed 20463861
  • Jiramongkolchai K, Repka MX, Tian J, Aucott SW, Shepard J, Collins M, Kraus C, Clemens J, Feller M, Burd I, Roizenblatt M, Goldberg MF, Arevalo JF, Gehlbach P, Handa JT. Lower foetal haemoglobin levels at 31- and 34-weeks post menstrual age is associated with the development of retinopathy of prematurity : PacIFiHER Report No. 1 PacIFiHER Study Group (Preterm Infants and Fetal Haemoglobin in ROP). Eye (Lond). 2021 Feb;35(2):659-664. doi: 10.1038/s41433-020-0938-5. Epub 2020 May 14.

    PubMed 32409707
  • Hellstrom W, Martinsson T, Hellstrom A, Morsing E, Ley D. Fetal haemoglobin and bronchopulmonary dysplasia in neonates: an observational study. Arch Dis Child Fetal Neonatal Ed. 2021 Jan;106(1):88-92. doi: 10.1136/archdischild-2020-319181. Epub 2020 Aug 26.

    PubMed 32847833
  • Teofili L, Papacci P, Orlando N, Bianchi M, Molisso A, Purcaro V, Valentini CG, Giannantonio C, Serrao F, Chiusolo P, Nicolotti N, Pellegrino C, Carducci B, Vento G, De Stefano V. Allogeneic cord blood transfusions prevent fetal haemoglobin depletion in preterm neonates. Results of the CB-TrIP study. Br J Haematol. 2020 Oct;191(2):263-268. doi: 10.1111/bjh.16851. Epub 2020 Jun 8.

    PubMed 32510635
  • Mohamed A, Shah PS. Transfusion associated necrotizing enterocolitis: a meta-analysis of observational data. Pediatrics. 2012 Mar;129(3):529-40. doi: 10.1542/peds.2011-2872. Epub 2012 Feb 20.

    PubMed 22351894
  • Bianchi M, Giannantonio C, Spartano S, Fioretti M, Landini A, Molisso A, Tesfagabir GM, Tornesello A, Barbagallo O, Valentini CG, Vento G, Zini G, Romagnoli C, Papacci P, Teofili L. Allogeneic umbilical cord blood red cell concentrates: an innovative blood product for transfusion therapy of preterm infants. Neonatology. 2015;107(2):81-6. doi: 10.1159/000368296. Epub 2014 Nov 15.

    PubMed 25401961
  • Gonzalez EG, Casanova MA, Samarkanova D, Aldecoa-Bilbao V, Teresa-Palacio M, Busquets EF, Figueras-Aloy J, Salvia-Roiges M, Querol S. Feasibility of umbilical cord blood as a source of red blood cell transfusion in preterm infants. Blood Transfus. 2021 Nov;19(6):510-517. doi: 10.2450/2020.0169-20. Epub 2020 Dec 18.

    PubMed 33370228
  • Bianchi M, Orlando N, Barbagallo O, Sparnacci S, Valentini CG, Carducci B, Teofili L. Allogeneic cord blood red blood cells: assessing cord blood unit fractionation and validation. Blood Transfus. 2021 Sep;19(5):435-444. doi: 10.2450/2020.0138-20. Epub 2020 Nov 3.

    PubMed 33196415
  • Kotowski M, Litwinska Z, Klos P, Pius-Sadowska E, Zagrodnik-Ulan E, Ustianowski P, Rudnicki J, Machalinski B. Autologous cord blood transfusion in preterm infants - could its humoral effect be the kez to control prematurity-related complications? A preliminary study. J Physiol Pharmacol. 2017 Dec;68(6):921-927.

    PubMed 29550804
  • Strauss RG, Widness JA. Is there a role for autologous/placental red blood cell transfusions in the anemia of prematurity? Transfus Med Rev. 2010 Apr;24(2):125-9. doi: 10.1016/j.tmrv.2009.11.003.

    PubMed 20303035

Questions about this trial

What is this clinical trial studying?

A study testing Red blood cell from umbilical cord blood and Red blood cell from adult donor in people with Infant, Extremely Premature and Erythrocyte Transfusion, run by Hospital Clinic of Barcelona at 1 site in Spain.

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 3 inclusion and 8 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 28 Jan 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 Spain. 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?

Number of participants with abnormal physical examination after red blood cells from umbilical cord blood (UCB-RBC) transfusion (time frame: 24 hours after the procedure). The study lists 5 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 NCT05612919, which also lists 10 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 28 Jan 2026.

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