Novel Pulmonary Function Measures for Diagnosis of Bronchiolitis Obliterans Syndrome Following Hematopoietic Stem-Cell Transplantation in Children

Last updated: February 26, 2026
Sponsor: The Hospital for Sick Children
Overall Status: Active - Recruiting

Phase

N/A

Condition

Respiratory Syncytial Virus (Rsv) Infection

Bronchitis (Pediatric)

Treatment

N/A

Clinical Study ID

NCT04391335
1000063459
  • Ages 6-18
  • All Genders

Study Summary

In this study, we will study 129Xe-MRI and LCI as tools for diagnosis of BOS in pediatric patients who have received Hematopoietic Stem Cell Transplantation (HSCT) and have been identified as eligible for this study. Participants will be required to have vital signs collected, complete breathing tests and complete an MRI. The MRI will require participants to perform breath holds in the MRI scanner with xenon gas while being coached by a research assistant.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Male and female participants aged 6 -17.9 years old.

  • Received HSCT treatment at least 6 months prior to enrollment in study.

  • Participants should have an FEV1%pred value greater than 40%.

  • Participant understands the study procedures and is willing to participate in thestudy as indicated by signature on the informed consent or assent.

  • Participant must be able to perform a breath hold for 16s.

  • Participant meets MRI screening criteria

Exclusion

Exclusion Criteria:

  • Participant has had a cold or respiratory infection in the last four weeks.

  • Participant requires supplemental oxygen or has a daytime room air oxygen saturation ≤ 95%.

  • Participant is unable to perform spirometry or plethysmography maneuvers.

  • Participant is pregnant or lactating.

Study Design

Total Participants: 15
Study Start date:
October 20, 2020
Estimated Completion Date:
June 30, 2026

Connect with a study center

  • The Hospital for Sick Children

    Toronto, Ontario M5G 1X8
    Canada

    Site Not Available

  • The Hospital for Sick Children

    Toronto 6167865, Ontario 6093943 M5G 1X8
    Canada

    Active - Recruiting

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