Mesenchymal Stromal Cell Therapy to Prevent Bronchopulmonary Dysplasia in Extreme Preterm Infants

NCT ID: NCT07058025

Last Updated: 2025-07-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

168 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-01

Study Completion Date

2038-09-30

Brief Summary

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This clinical trial aims to evaluate the safety and efficacy of mesenchymal stromal cell (MSC) therapy in extreme preterm infants to prevent bronchopulmonary dysplasia, the main respiratory complication of preterm birth.

Study participants will receive either multiple intravenous doses (total of 3 doses) of MSC derived from human donor umbilical cord tissue (intervention group) or no uc-MSC injection (control group) to confirm the safety of IV MSC in extreme preterm infants and evaluate the potential benefit of MSC therapy on their respiratory health as well as on other complications related to preterm birth.

Detailed Description

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Include Background...

Conditions

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Bronchopulmonary Dysplasia (BPD) ELGAN (22-28SA)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Intervention group:

Participants allocated in the intervention group will receive multidose of UC-MSCs as follow:

* Dose: each dose consists of 10x106 cells/kilograms of bodyweight.
* Administration protocol: weekly IV dose of UC-MSCs for 3 weeks (total of 3 doses)
* Route of administration: IV infusion on peripheral intravenous catheter. The UC-MSC solution will be infused using a syringe pump over 15 minutes, and after the UCMSC infusion, an additional volume of normal saline will be infused using a syringe pump over 15 minutes.

Control group:

Participants allocated in the control group will receive a sham procedure weekly for 3 weeks. A syringe of normal saline brought to bedside, but it will not be administered. The physician and bedside nurse will perform the sham procedure behind a screen (they will mimic IV catheter insertion and cell product injection)
Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Parents of the participants.

Study Groups

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Intervention group will receive multiple IV doses of UC-MSCs

* Dose: each dose consists of 10 million cells/kilograms of bodyweight.
* Administration protocol: weekly (7 days ± 1 day) IV dose of UC-MSCs for 3 weeks (Total of 3 doses)
* Route of administration: IV infusion on peripheral intravenous catheter. The UC-MSC solution will be infused using a syringe pump over 15 minutes, and after the UCMSC infusion, an additional volume of normal saline will be infused over 15 minutes.

Group Type EXPERIMENTAL

Human Allogenic Umbilical Cord Mesenchymal Stromal Cells

Intervention Type BIOLOGICAL

IV administration of uc-MSC every 7 days ± 1 day for 3 weeks. Randomized double blinded

Control group

Participants allocated in the control group will receive a sham procedure weekly for 3 weeks. A syringe of normal saline brought to bedside, but it will not be administered. The physician and bedside nurse will perform the sham procedure behind a screen (they will mimic IV catheter insertion and cell product injection)

Group Type SHAM_COMPARATOR

Sham procedure control

Intervention Type OTHER

Sham procedure (mimic IV catheter insertion adn cell product infusion behing a screen). Repeated weekly for 3 weeks

Interventions

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Human Allogenic Umbilical Cord Mesenchymal Stromal Cells

IV administration of uc-MSC every 7 days ± 1 day for 3 weeks. Randomized double blinded

Intervention Type BIOLOGICAL

Sham procedure control

Sham procedure (mimic IV catheter insertion adn cell product infusion behing a screen). Repeated weekly for 3 weeks

Intervention Type OTHER

Other Intervention Names

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UC-MSC Umbilical Cord Mesenchymal Stromal Cells Mesenchymal Stromal Cells

Eligibility Criteria

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Inclusion Criteria

* Gestational age (GA) less than 28+0 weeks
* Post-natal age between 4 and 14 days of life
* Invasive ventilation with oxygen requirement:

* On mechanical ventilation: intubated patient with any of the following ventilation modes: conventional, HFO or Jet ventilation:
* With requirement of FiO2: FiO2 \>= 30% and for at least 12 hours over 24 hours (i.e. flowsheets, FiO2 histogram)

Exclusion Criteria

1. Congenital anomaly:

* Genetic and chromosomal syndromes (e.g., Trisomy 13, Trisomy 18, Trisomy 21): either patient with high suspicion (antenatal findings, clinical features) or documented syndrome by genetic testing.
* Major congenital anomalies including cardiac (i.e., congenital heart defects, NB. PDA is not considered an exclusion criterion), neurological (e.g., holoprosencephaly, anencephaly), gastrointestinal (e.g., gastroschisis, omphalocele), pulmonary (e.g., congenital diaphragmatic hernia) anomalies.
* Inborn errors of metabolism.
2. Hemodynamic instability (shock):

* Hemodynamic instability with impaired end-organ perfusion (metabolic acidosis with increased lactate and/or decreased urine output).
* Requirements for fluid bolus, inotrope or vasopressor medication
3. Severe sepsis:

* Signs of hemodynamic instability and requiring at least one fluid bolus.
* And a positive blood or cerebrospinal fluid culture.
4. Pneumothorax: Pneumothorax with a chest tube in place
5. Severe pulmonary hemorrhage:

* Active pulmonary hemorrhage (i.e., frank blood coming from the endotracheal tube.
* And at least one of the following criteria: a)hemodynamic instability. b) blood product transfusion (packed red blood cells, platelets, fresh frozen plasma)
6. Extubation: If Extubation planned within the next 24 hours (post first uc-MSC administration/sham procedure).
7. Patient is not expected to survive:

* Redirection of care.
* Patient is moribund
Minimum Eligible Age

4 Days

Maximum Eligible Age

14 Days

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Canadian Institutes of Health Research (CIHR)

OTHER_GOV

Sponsor Role collaborator

Stem Cell Network

OTHER

Sponsor Role collaborator

Ottawa Hospital Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bernard Thébaud, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Ottawa Hospital Research Institute

Locations

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Royal Alexandra Hospital/Stollery Children's Hospital

Edmonton, Alberta, Canada

Site Status

McMaster Children's Hospital

Hamilton, Ontario, Canada

Site Status

The Ottawa Hospital

Ottawa, Ontario, Canada

Site Status

Sunnybrook Health Sciences Ctr

Toronto, Ontario, Canada

Site Status

Mount Sinai Hospital

Toronto, Ontario, Canada

Site Status

CHU Sainte-Justine

Montreal, Quebec, Canada

Site Status

McGill Montreal Children's Hospital

Montreal, Quebec, Canada

Site Status

Université Laval

Québec, Quebec, Canada

Site Status

Countries

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Canada

Central Contacts

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Bernard Thébaud, MD, PhD

Role: CONTACT

613-737-8899 ext. 73905

Chantal Horth

Role: CONTACT

Facility Contacts

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Georg Schmölzer, MD, PhD

Role: primary

780-735-4660

Amit Mukerji

Role: primary

905-521-2100

Maher Shahroor, MD, RCPSC

Role: primary

416-480-6100

Prakesh Shah

Role: primary

416-586-4761

Anne-Monique Nuyt

Role: primary

514 345-4931 ext. 4673

Marc Beltempo, MD, M.Sc., FRCPC

Role: primary

(514) 412-4400

Mireille Guillot, MD

Role: primary

418-656-2131

Other Identifiers

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HULC-2

Identifier Type: -

Identifier Source: org_study_id

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