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This study investigates whether donors with previous exposure to COVID-19 can pass their immunity by hematopoietic (blood) stem cell transplant (HCT) donation to patients that have not been exposed. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus that causes the COVID19 infection. This study may provide critical information for medical decision-making and possible immunotherapy interventions in immunocompromised transplant recipients, who are at high risk for COVID19 severe illness.
Full description
PRIMARY OBJECTIVE:
I. To establish the possibility of anti-SARS-CoV-2 adaptive immunity transfer from matched related (MRD) or unrelated (MUD) HCT donor to HCT recipient.
SECONDARY OBJECTIVES:
I. To explore anti-SARS-CoV-2 adaptive immunity transfer in the haploidentical (haplo) HCT setting.
II. To assess the prevalence and change over time of SARS-CoV-2 seropositive donors among all consented donors.
OUTLINE:
DONORS: Prior to HCT, sibling donors (MRD and haplo) undergo a nasopharyngeal swab per standard of care for SARS-Cov-2 testing. For MUD donors, initial testing may consist of a questionnaire. All donors undergo collection of blood and saliva at the time of granulocyte-colony stimulating factor (G-CSF). Donors' medical charts are also reviewed.
RECIPIENTS: Patients undergo a nasopharyngeal swab for SARS-Cov-2 testing at 30, 60, 90, 120 days post-HCT, and afterwards as deemed necessary by the treating physician. Patients also undergo the collection of blood and saliva specimens at days 30, 60, 90, 120, 150, and 180 post-HCT. Recipients' medical charts are also reviewed.
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Inclusion Criteria:
ALL COHORTS: Documented written informed consent of the participant
ALL COHORTS: Recipients must have a planned allogeneic HCT procedure. MRD, MUD, and haplo HCT allowed. Usage of post-transplant cyclophosphamide (PTCy) permitted only in haplo setting
ALL COHORTS: GCSF-mobilized peripheral blood stem cell (PBSC) only as graft source
ALL COHORTS: Planned HCT with minimal to no-T cell depletion of graft for the treatment of the following hematologic malignancies:
ALL COHORTS: Willingness to
ADDITIONAL CRITERIA FOR RECIPIENTS IN THE MAIN COHORT:
ADDITIONAL CRITERIA FOR RECIPIENTS IN THE REFERENCE COHORT: Active COVID-19 infection during HCT
26 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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