Immunologic Features of Respiratory Failure in Pediatric Hematopoietic Cell Transplantation (HCT) Recipients and Pediatric Oncology Patients
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Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is being done because researchers want to learn more about genes that control the immune response in the participant's lungs and blood when the participant have lung disease leading to respiratory failure. Primary Objective To evaluate the feasibility of performing single cell gene expression analyses on tracheal aspirates from immunocompromised pediatric patients with immune compromising conditions, including HCT recipients. Secondary Objectives * To assess whether cell composition and activation states in longitudinally obtained tracheal aspirate and blood samples are able to distinguish unique immunopathology for each of the early post-HCT lung diseases. * To assess whether cell composition and activation states in longitudinally obtained tracheal aspirate and blood samples are different between two immunodeficient patient populations (alloHCT vs non alloHCT) with lung disease and respiratory failure. * To test the hypothesis that allogeneic T cell responses are implicated in the pathogenesis of early post-HCT lung diseases. Exploratory Objectives To correlate immune cell signaling in the lower respiratory tract and blood of patients with early post-HCT lung diseases with the presence or absence of pathogenic microbes at each site. To explore HLA testing in Tracheal Aspirates in samples where enough cells are present.
Study identification
- NCT ID
- NCT04355780
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 10 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- Up to 21 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 8, 2021 (Actual)
- Primary completion
- Aug 30, 2023 (Actual)
- Completion
- Aug 30, 2023 (Actual)
- Last update posted
- Sep 8, 2023
2021 – 2023
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| St. Jude Children's Research Hospital | Memphis | Tennessee | 38105 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04355780, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 8, 2023 · Synced Nov 13, 2026
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