Evaluating the Immune Response to COVID19 Vaccination in Immunodeficient Patients
3 other identifiers
observational
400
1 country
1
Brief Summary
The purpose of this study is to understand the immune response to coronavirus disease-19 (COVID-19) vaccination in patients on B-cell depleting therapies (BCDT) over time, which in the future may help to inform clinical decision making in this patient population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2021
Longer than P75 for all trials
1 active site
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 Start
First participant enrolled
February 10, 2021
CompletedFirst Submitted
Initial submission to the registry
March 15, 2022
CompletedFirst Posted
Study publicly available on registry
March 18, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
April 25, 2025
April 1, 2025
5.3 years
March 15, 2022
April 24, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Change in coronavirus disease 19 (COVID19) antibody titers over time
COVID 19 spike and neutralizing antibody titers will be monitored serially
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
Change in severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) specific T-cell activation over time
Flow cytometry characterizing immunophenotype of SARS-CoV2 specific T cells
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
Secondary Outcomes (6)
Skin biopsy analysis
7 days post vaccine 1; 7 days post vaccine 2; 4 days post booster (all timepoints optional)
Measurement of COVID19 antibodies in saliva
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
Immune analysis
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
Changes in patient reported outcomes: COVID history
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
Change in patient reported outcomes: patient reported disability steps
Baseline, 2 weeks post vaccine 1, pre-vaccine 2, 1 week post vaccine 2, 6 months post vaccine 2; pre- and 2 week post any additional vaccines
- +1 more secondary outcomes
Study Arms (4)
Healthy control
Healthy controls Participants will receive COVID19 vaccination according to standard of care (any FDA approved vaccine). They will donate serial biospecimens before and after vaccination according to the study design.
Disease control
Disease controls (individuals with a qualifying autoimmune condition, but not treated with any immunomodulator). Participants will receive COVID19 vaccination according to standard of care (any FDA approved vaccine). They will donate serial biospecimens before and after vaccination according to the study design.
B-cell depleted
Individuals with autoimmune disease (multiple sclerosis or autoimmune blistering disease) who are treated with B-cell depleting anti-CD20 monoclonal antibodies. Participants will receive COVID19 vaccination according to standard of care (any FDA approved vaccine). They will donate serial biospecimens before and after vaccination according to the study design.
Other immunomodulator
Individuals with autoimmune disease (multiple sclerosis or autoimmune blistering disease) who are treated with a non-CD20 monoclonal antibody immunomodulator to treat their disease. Participants will receive COVID19 vaccination according to standard of care (any FDA approved vaccine). They will donate serial biospecimens before and after vaccination according to the study design.
Interventions
All participants receive one or more FDA-authorized COVID19 vaccinations according to standard of care and current medical recommendations. The intervention is not specifically administered as part of the study.
Eligibility Criteria
There will be four groups of participants overall: * Patients with autoimmune neurologic/autoimmune blistering disease (AIBD) who are on B-cell depleting therapy (anti-CD20 monoclonal antibodies) * Patients with autoimmune neurologic/AIBD who are on other types of immunomodulators * Patients with autoimmune neurologic/AIBD who are untreated * Healthy controls
You may not qualify if:
- Use of high dose steroids for treatment of neurologic/immunologic disease within 1 month of COVID-19 vaccination
- Anti-CD20 B-cell depleting therapy infused within 2 weeks of first study visit
- Inability to comply with the requirements of the protocol, in the opinion of the primary investigator
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Yale University
New Haven, Connecticut, 06520, United States
Biospecimen
Serum, peripheral blood mononuclear cells (PBMC), DNA, skin biopsies, saliva
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Erin Longbrake
Yale University
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 15, 2022
First Posted
March 18, 2022
Study Start
February 10, 2021
Primary Completion (Estimated)
May 31, 2026
Study Completion (Estimated)
June 30, 2026
Last Updated
April 25, 2025
Record last verified: 2025-04