SARS-CoV-2 Donor-Recipient Immunity Transfer

April 4, 2024 updated by: City of Hope Medical Center

Observational Study of SARS-CoV-2 Donor-Recipient Immunity Transfer

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.

Study Overview

Detailed 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.

Study Type

Observational

Enrollment (Actual)

26

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Duarte, California, United States, 91010
        • City of Hope Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients (donors and recipients) scheduled to undergo a standard of care donor HCT procedure.

Description

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:

    • Lymphoma (Hodgkin and non-Hodgkin)
    • Myelodysplastic syndrome
    • Acute lymphoblastic leukemia in first or second remission (for acute lymphoblastic leukemia/lymphoblastic lymphoma, the disease status must be in hematologic remission by bone marrow and peripheral blood. Persistent lymphadenopathy on computed tomography [CT] or CT/positron emission tomography [PET] scan without progression is allowed)
    • Acute myeloid leukemia in first or second remission
    • Chronic myelogenous leukemia in first chronic or accelerated phase, or in second chronic phase
    • Other hematologic malignancies including chronic lymphocytic leukemia, myeloproliferative disorders and myelofibrosis
  • ALL COHORTS: Willingness to

    • Provide blood samples and saliva specimens
    • Permit medical record review
  • ADDITIONAL CRITERIA FOR RECIPIENTS IN THE MAIN COHORT:

    • Absence of documented COVID-19 history and active COVID-19 infection
  • ADDITIONAL CRITERIA FOR RECIPIENTS IN THE REFERENCE COHORT: Active COVID-19 infection during HCT

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Observational (biospecimen collection, medical chart review)

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.

Correlative studies
Complete questionnaire
Medical charts are reviewed
Undergo collection of nasopharyngeal swabs, blood, and saliva samples

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Severe acute respiratory syndrome (SARS)-Coronavirus 2 (CoV-2) Spike protein (S)-specific IgG concentration and T cell levels
Time Frame: Up to 180 days post-hematopoietic stem cell transplant (HCT)
Testing for SARS-CoV-2 antibodies will be performed on serum samples using in house developed enzyme-linked immunosorbent assay (ELISA). The qualitative assays will be developed to investigate Spike subunit 1 (S1)-specific antibodies of the IgG, IgM and IgA subclasses in serum and saliva samples. All SARS-Cov-2 seropositive donor-HCT recipient pairs patients will undergo cellular immunogenicity evaluations using flow cytometry. The data analysis for estimating the effect of donor immunity transfer on functional cellular immunity through time will be exploratory in nature and will focus on graphical display and summary statistics. Longitudinal levels of T cells specific for SARS-CoV-2 S will be measured as a correlate of immunity transfer efficiency.
Up to 180 days post-hematopoietic stem cell transplant (HCT)
SARS-CoV-2 nucleocapsid protein (N) -specific IgG concentration and T cell levels
Time Frame: Up to 180 days post-HCT
Testing for SARS-CoV-2 antibodies will be performed on serum samples using in house developed ELISA. The qualitative assays will be developed to investigate nucleocapsid (N)-specific antibodies of the IgG, IgM and IgA subclasses in serum and saliva samples. All SARS-Cov-2 seropositive donor-HCT recipient pairs patients will undergo cellular immunogenicity evaluations using flow cytometry. The data analysis for estimating the effect of donor immunity transfer on functional cellular immunity through time will be exploratory in nature and will focus on graphical display and summary statistics. Longitudinal levels of T cells specific for SARS-CoV-2 N antigens will be measured as a correlate of immunity transfer efficiency.
Up to 180 days post-HCT
SARS-CoV-2 neutralizing antibodies
Time Frame: Up to 180 days post-HCT
Evaluation of SARS-CoV-2 neutralizing antibody titers in serum samples will be performed using SARS-CoV-2 lentiviral-pseudovirus based on published protocols. Spike incorporation into the pseudovirus will be verified and quantified by western blot using Spike-specific antibodies (Sino Biological) and by ELISA using Spike Detection kit (Sino Biological), respectively.
Up to 180 days post-HCT

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
SARS-CoV-2 IgA concentration
Time Frame: Up to 180 days post-HCT
Testing for SARS-CoV-2 antibodies will be performed on serum samples using in house developed ELISA.
Up to 180 days post-HCT

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
SARS-CoV-2 -specific T cell memory profile and associated function
Time Frame: Up to 180 days post-HCT
The data analysis for estimating the effect of donor immunity transfer on functional cellular immunity through time will be exploratory in nature and will focus on graphical display and summary statistics. Longitudinal levels of T cells specific for SARS-CoV-2 S or SARS-CoV-2 N antigens will be measured as a correlate of immunity transfer efficiency.
Up to 180 days post-HCT

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Monzr M Al Malki, City of Hope Comprehensive Cancer Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 23, 2020

Primary Completion (Actual)

May 5, 2023

Study Completion (Actual)

May 5, 2023

Study Registration Dates

First Submitted

December 10, 2020

First Submitted That Met QC Criteria

December 10, 2020

First Posted (Actual)

December 14, 2020

Study Record Updates

Last Update Posted (Actual)

April 8, 2024

Last Update Submitted That Met QC Criteria

April 4, 2024

Last Verified

April 1, 2024

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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