NCT05321407

Brief Summary

The goal of our study is to assess the cellular immune responses of participants with antibody deficiency disease before and after immunization with SARS-CoV-2 mRNA vaccines.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
3mo left

Started Sep 2021

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress95%
Sep 2021Jul 2026

Study Start

First participant enrolled

September 30, 2021

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

April 7, 2022

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 11, 2022

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2026

Last Updated

June 3, 2025

Status Verified

March 1, 2025

Enrollment Period

4.8 years

First QC Date

April 7, 2022

Last Update Submit

May 29, 2025

Conditions

Keywords

X-linked AgammaglobulinemiaPrimary Immune DeficiencyCommon Variable ImmunodeficiencySARS CoV 2 InfectionPrimary Antibody DeficienciesCOVID-19Secondary Hypogammaglobulinemia

Outcome Measures

Primary Outcomes (5)

  • Spike (S) protein-specific T cell responses to stimulation with SARS-CoV-2 wild-type peptides (measured as a percentage of total T cells).

    2 years

  • Spike (S) protein-specific T cell responses to stimulation with SARS-CoV-2 alpha variant peptides (measured as a percentage of total T cells).

    2 years

  • Spike (S) protein-specific T cell responses to stimulation with SARS-CoV-2 beta variant peptides (measured as a percentage of total T cells).

    2 years

  • Spike (S) protein-specific T cell responses to stimulation with SARS-CoV-2 delta variant peptides (measured as a percentage of total T cells).

    2 years

  • Spike (S) protein-specific T cell responses to stimulation with SARS-CoV-2 omicron variant peptides (measured as a percentage of total T cells).

    2 years

Secondary Outcomes (7)

  • S-specific T cell responses (as a percentage of total T cells) to SARS-CoV-2 vaccination in primary antibody deficiency over time.

    2 years

  • S-specific T cell responses (as a percentage of total T cells) to SARS-CoV-2 vaccination in secondary antibody deficiency over time.

    2 years

  • S-specific T cell responses (as a percentage of total T cells) to SARS-CoV-2 in infected participants.

    2 years

  • S-specific T cell responses (as a percentage of total T cells) to SARS-CoV-2 in vaccinated participants.

    2 years

  • Number of vaccinated participants who develop severe COVID-19 clinical outcomes.

    2 years

  • +2 more secondary outcomes

Study Arms (1)

X-linked agammaglobulinemia (XLA)

This study is a non-randomized observational cohort study of participants with XLA who have either received, as standard care, the Pfizer BioNTech BNT162b2 mRNA vaccine or the Moderna mRNA-1273 vaccine. In this protocol, vaccination is entirely voluntary and vaccines are not provided by the study.

Eligibility Criteria

Age6 Months+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Approximately 50 subjects with primary antibody deficiency diseases and 50 healthy controls will be enrolled through the Duke University Medical Center's Allergy and Immunology clinics for the Departments of Medicine and Pediatrics, in addition to collaboration with University of North Carolina, Chapel Hill and University of South Florida.

You may qualify if:

  • Diagnosis of antibody deficiency with confirmatory lab or genetic testing
  • Stable on immunoglobulin replacement therapy
  • Age \>6 months and able to provide consent, or assent with parental consent if \<18 years
  • Willing and able to receive the Pfizer BioNTech BNT162b2 mRNA or the Moderna mRNA-1273 vaccines

You may not qualify if:

  • (1) History of other chronic disease with depressed immune function or immune suppressive medication

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

University of South Florida

St. Petersburg, Florida, 33701, United States

Location

University of North Carolina, Chapel Hill

Chapel Hill, North Carolina, 27599, United States

Location

Duke University

Durham, North Carolina, 27708, United States

Location

MeSH Terms

Conditions

Bruton type agammaglobulinemiaPrimary Immunodeficiency DiseasesCommon Variable ImmunodeficiencyCOVID-19

Condition Hierarchy (Ancestors)

Genetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesImmunologic Deficiency SyndromesImmune System DiseasesPneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • John Sleasman, MD

    Duke University

    PRINCIPAL INVESTIGATOR
  • Kristina De Paris, PhD

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 7, 2022

First Posted

April 11, 2022

Study Start

September 30, 2021

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

July 31, 2026

Last Updated

June 3, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

Locations