Trial Outcomes & Findings for COVID Protection After Transplant-Immunosuppression Reduction (NCT NCT05077254)

NCT ID: NCT05077254

Last Updated: 2026-04-23

Results Overview

Serum antibody titer will be measured using the Roche Elecsys®) severe acute respiratory syndrome coronavirus type 2 serological (anti-SARS-CoV-2) S assay. Values \> 1 represent increase from baseline; values \< 1 represent decrease from baseline.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

48 participants

Primary outcome timeframe

Day 30 After Study Vaccination

Results posted on

2026-04-23

Participant Flow

Participant milestones

Participant milestones
Measure
Additional mRNA COVID-19 Vaccine Without ISR
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Overall Study
STARTED
18
14
Overall Study
COMPLETED
14
14
Overall Study
NOT COMPLETED
4
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Additional mRNA COVID-19 Vaccine Without ISR
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Overall Study
Withdrawal by Subject
3
0
Overall Study
Death
1
0

Baseline Characteristics

COVID Protection After Transplant-Immunosuppression Reduction

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Total
n=32 Participants
Total of all reporting groups
Age, Continuous
62.5 years
n=60 Participants
63 years
n=56 Participants
62.5 years
n=116 Participants
Sex/Gender, Customized
Female
6 Participants
n=60 Participants
10 Participants
n=56 Participants
16 Participants
n=116 Participants
Sex/Gender, Customized
Male
12 Participants
n=60 Participants
4 Participants
n=56 Participants
16 Participants
n=116 Participants
Race/Ethnicity, Customized
White
12 Participants
n=60 Participants
10 Participants
n=56 Participants
22 Participants
n=116 Participants
Race/Ethnicity, Customized
Black/African American
4 Participants
n=60 Participants
4 Participants
n=56 Participants
8 Participants
n=116 Participants
Race/Ethnicity, Customized
Asian
1 Participants
n=60 Participants
0 Participants
n=56 Participants
1 Participants
n=116 Participants
Race/Ethnicity, Customized
Other
16 Participants
n=60 Participants
14 Participants
n=56 Participants
30 Participants
n=116 Participants
Race/Ethnicity, Customized
Hispanic/Latino ethnicity
2 Participants
n=60 Participants
0 Participants
n=56 Participants
2 Participants
n=116 Participants
Region of Enrollment
United States
18 participants
n=60 Participants
14 participants
n=56 Participants
32 participants
n=116 Participants
Years since transplant
3.2 Years
n=60 Participants
4.1 Years
n=56 Participants
3.9 Years
n=116 Participants
Organ transplanted
Kidney
13 Participants
n=60 Participants
10 Participants
n=56 Participants
23 Participants
n=116 Participants
Organ transplanted
Liver
5 Participants
n=60 Participants
4 Participants
n=56 Participants
9 Participants
n=116 Participants
Baseline Immunosuppression
Tacrolimus, MMF or MPA, with/without corticosteroid
14 Participants
n=60 Participants
9 Participants
n=56 Participants
23 Participants
n=116 Participants
Baseline Immunosuppression
Tacrolimus with <= 5mg prednisone or equivalent
0 Participants
n=60 Participants
4 Participants
n=56 Participants
4 Participants
n=116 Participants
Baseline Immunosuppression
Tacrolimus only
4 Participants
n=60 Participants
1 Participants
n=56 Participants
5 Participants
n=116 Participants

PRIMARY outcome

Timeframe: Day 30 After Study Vaccination

Population: 1 ISR participant missed Day 0 antibody titer; 1 ISR participant was deemed ineligible for taking \>5mg of prednisone; 1 Vaccine only participant terminated the study prior to Day 30 follow-up

Serum antibody titer will be measured using the Roche Elecsys®) severe acute respiratory syndrome coronavirus type 2 serological (anti-SARS-CoV-2) S assay. Values \> 1 represent increase from baseline; values \< 1 represent decrease from baseline.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=17 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=12 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
The -Fold Change in Antibody Titer (Using the Roche Elecsys® Anti-SARS-CoV-2 S Assay) From Before Receiving the Study Dose of Vaccine to 30 Days After the Study Dose of Vaccine.
13 dimensionless ratio
Interval 5.0 to 58.0
31 dimensionless ratio
Interval 5.0 to 72.0

SECONDARY outcome

Timeframe: Through Day 7 Post Study Vaccination

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Frequency of Solicited Systemic Allergic Reaction Adverse Events (AEs) to the mRNA-Based COVID-19 Vaccine
0 events
0 events

SECONDARY outcome

Timeframe: Through Day 7 post Vaccine dose

Population: Specific local reactions were collected by the participant: pain at the injection site, redness, and swelling. These local reactions after the vaccine dose were reported. There were no reported Grade 2 (moderate) or higher grade local solicited adverse reactions.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants With Local Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Any Local Solicited Adverse Reaction
7 Participants
6 Participants
Proportion of Participants With Local Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Injection Site Pain - Grade 1 (Mild) 7/18 38.89% 6/14 42.14%
7 Participants
6 Participants
Proportion of Participants With Local Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Swelling - Grade 1 (Mild)
0 Participants
1 Participants
Proportion of Participants With Local Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Erythema/Redness - any Grade >= 1
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Day 7 post Vaccine dose

Population: Specific Systemic Reactions were collected by the participant: fever, myalgia, arthralgia, fatigue, headache, nausea, vomiting, diarrhea, chills. These systemic reactions after the vaccine dose were reported. There were no reported Grade 2 (moderate) or higher grade systemic solicited adverse reactions.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Vomiting - Any grade >= 1
0 Participants
0 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Myalgia - Grade 1
0 Participants
1 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Arthralgia - Any grade >= 1
0 Participants
0 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Chills - Grade 1 (Mild)
1 Participants
0 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Diarrhea - Any grade >= 1
0 Participants
0 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Fatigue - Grade 1 (Mild)
3 Participants
3 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Headache - Grade 1 (Mild)
0 Participants
1 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Nausea - Grade 1 (Mild)
0 Participants
1 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Any Systemic Solicited Adverse Reaction
4 Participants
3 Participants
Proportion of Participants With Systemic Solicited Adverse Reactions Within 7 Days After Additional Vaccine Dose
Fever - Grade 1
0 Participants
1 Participants

SECONDARY outcome

Timeframe: Through Day 7 post Vaccine dose

Population: Specific Solicited Potential Allergic Reactions were collected by the participant: skin allergic reactions (hives, swelling other than at the injection site, itching, redness other than at the injection site, rash), respiratory allergic reactions (wheezing, shortness of breath, coughing, tightness in the throat or chest, sneezing, nasal stuffiness or congestion), gastrointestinal allergic reactions, and dizziness or lightheadedness.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants With Solicited Potential Allergic Reactions Within 7 Days After Additional Vaccine Dose
Any Respiratory Signs/Symptoms of Potential Allergic Reaction
0 Participants
0 Participants
Proportion of Participants With Solicited Potential Allergic Reactions Within 7 Days After Additional Vaccine Dose
Any Gastrointestinal Signs/Symptoms of Potential Allergic Reaction
0 Participants
0 Participants
Proportion of Participants With Solicited Potential Allergic Reactions Within 7 Days After Additional Vaccine Dose
Dizziness or Lightheadedness
0 Participants
0 Participants
Proportion of Participants With Solicited Potential Allergic Reactions Within 7 Days After Additional Vaccine Dose
Any Skin Signs/Symptoms of Potential Allergic Reaction
0 Participants
0 Participants
Proportion of Participants With Solicited Potential Allergic Reactions Within 7 Days After Additional Vaccine Dose
Any Solicited Potential Allergic Reactions
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Day 30 Post Study Vaccination

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Frequency of Any Serious Adverse Events (SAEs) During the 30 Days Following the Additional Dose of Vaccine
Had >= 1 Adverse Event
2 events
0 events
Frequency of Any Serious Adverse Events (SAEs) During the 30 Days Following the Additional Dose of Vaccine
No Serious Adverse Events
16 events
14 events

SECONDARY outcome

Timeframe: Through Day 60 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 60 day period of surveillance. 1 vaccine only participant terminated the study after day 21, 2 additional vaccine only participants terminated the study after day 44.

Safety measure post receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants Treated for Acute Cell-Mediated and/or Antibody-Mediated Allograft Rejection
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Day 90 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 90 day period of surveillance for donor-specific HLA antibodies. 1 vaccine only participant terminated the study after day 21; 2 vaccine only participants terminated the study after day 44, prior to 90 d follow-up.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants Who Develop de Novo Donor-Specific Anti-Human Leukocyte Antigens (HLA) Antibody
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Day 60 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 60 day period of surveillance for graft loss. 1 vaccine only participant terminated the study after day 21; 2 vaccine only participants terminated the study after day 44.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Proportion of Participants With Graft Loss
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Day 60 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 60 day period of surveillance for death. 1 vaccine only participant terminated the study after day 21; 2 vaccine only participants terminated the study after day 44.

Safety measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Occurrence of Death Among Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Baseline (Day 0, Prior to Study Vaccination), Month 1, 3, 6, 9 and 12

Population: Number analyzed represents those who submitted an analyzable sample at each specific study visit timepoint and does not include positive SARS-CoV-2 tests obtained at non-study visits.

A nasal mid-turbinate swab for SARS-CoV-2 PCR testing will be collected prior to administration of the COVID-19, at specified timepoints after receipt of vaccination and, in any case of suspected COVID-19 infection.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Baseline
0 Participants
0 Participants
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Month 1
0 Participants
2 Participants
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Month 3
0 Participants
0 Participants
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Month 6
1 Participants
1 Participants
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Month 9
0 Participants
0 Participants
Frequency of Positive SARS-CoV-2 Test Results Using Real-Time Polymerase Chain Reaction (RT-PCR)
Month 12
0 Participants
1 Participants

SECONDARY outcome

Timeframe: Through Day 365 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 365 day period of surveillance for symptomatic COVID-19. 1 vaccine only participant terminated the study after day 21; 2 vaccine only participants terminated the study after day 44.

Efficacy measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Occurrence of Symptomatic COVID-19
9 Participants
7 Participants

SECONDARY outcome

Timeframe: Through Day 365 Post Study Vaccination

Population: All events occurring during study participation from all participants receiving study intervention were included in this analysis, even if the participant terminated the study prior to the full 365 day period of surveillance for COVID-19 requiring hospitalization. 1 vaccine only participant terminated the study after day 21; 2 vaccine only participants terminated the study after day 44.

Efficacy measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Occurrence of COVID-19 Requiring Hospitalization
Participants requiring any COVID-19 related hospitalization
4 Participants
1 Participants
Occurrence of COVID-19 Requiring Hospitalization
Participants not requiring any COVID-19 related hospitalization
14 Participants
13 Participants

SECONDARY outcome

Timeframe: Baseline (Day 0, Prior to Study Vaccination),Day 30 After Study Vaccination

Population: All participants with eligible analyzable samples were included in this analysis. 1 ISR participant missed Day 0 antibody titer and the change could not be analyzed; 1 ISR participant was deemed ineligible for taking \>5mg of prednisone and was excluded from analysis; 1 Vaccine only participant terminated the study prior to Day 30 follow-up, and without a sample could not be included in analysis.

Efficacy measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=17 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=12 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Change From Baseline in Anti-SARS-CoV-2 Antibody Levels at Day 30
104 U/mL
Interval 7.0 to 1111.0
294 U/mL
Interval 14.0 to 4757.0

SECONDARY outcome

Timeframe: From Baseline (Day 0, Prior to Study Vaccination) to Day 365 Post Study Vaccination

Population: All participants with eligible analyzable samples were included in this analysis. 1 ISR participant missed Day 0 antibody titer and the change could not be analyzed; 1 ISR participant was deemed ineligible for taking \>5mg of prednisone and was excluded from analysis; 1 Vaccine only participant terminated the study prior to Day 30 follow-up, and without a sample could not be included in analysis.

Efficacy measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=14 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=11 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Change From Baseline in SARS-CoV-2 Antibody Levels
685 U/mL
Interval 99.0 to 7376.0
1878 U/mL
Interval 172.0 to 3392.0

SECONDARY outcome

Timeframe: Baseline (Day 0, Prior to Receipt of COVID-19 Study Vaccination), Day 30 After Study Vaccination

Population: All participants with eligible analyzable samples were included in this analysis. 1 ISR participant missed Day 0 antibody titer and the change could not be analyzed; 1 ISR participant was deemed ineligible for taking \>5mg of prednisone and was excluded from analysis; 1 Vaccine only participant terminated the study prior to Day 30 follow-up, and without a sample could not be included in analysis.

Efficacy measure after receipt of the study's COVID-19 mRNA vaccine.

Outcome measures

Outcome measures
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=17 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=12 Participants
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Fold Change in SARS-CoV-2 Antibody Levels: Limited to Participants With Detectable Antibody Levels at Baseline (Day 0). (Values > 1 Represent an Increase From Baseline; Values < 1 Represent a Decrease From Baseline).
13 dimensionless ratio
Interval 5.8 to 58.0
31 dimensionless ratio
Interval 5.0 to 72.0

Adverse Events

Additional mRNA COVID-19 Vaccine Without ISR

Serious events: 5 serious events
Other events: 6 other events
Deaths: 1 deaths

Additional mRNA COVID-19 Vaccine With ISR

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 participants at risk
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 participants at risk
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Infections and infestations
COVID-19 infection
16.7%
3/18 • Number of events 3 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Renal and urinary disorders
Acute kidney injury
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Gastrointestinal disorders
Vomiting
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Gastrointestinal disorders
Colitis
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Hepatobiliary disorders
Jaundice cholestatic
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).

Other adverse events

Other adverse events
Measure
Additional mRNA COVID-19 Vaccine Without ISR
n=18 participants at risk
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 and will continue to take their standard of care transplant immunosuppressive medications without alterations in schedule and dosing.
Additional mRNA COVID-19 Vaccine With ISR
n=14 participants at risk
Participants will receive a study dose (1 dose) of the Pfizer-BioNTech COVID-19 Vaccine 2023-2024 or the Moderna COVID-19 Vaccine 2023-2024 with concurrent reduction of their standard of care transplant immunosuppression regimen.
Investigations
Lymphocyte count decreased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
Platelet count decreased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
WBC count decreased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
ALT increased
0.00%
0/18 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
Blood bicarbonate decreased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
Blood creatinine increased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
35.7%
5/14 • Number of events 6 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Investigations
CD4 lymphocytes decreased
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Infections and infestations
COVID-19 infection
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
14.3%
2/14 • Number of events 2 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Gastrointestinal disorders
Abdominal pain lower
0.00%
0/18 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Blood and lymphatic system disorders
Lymphadenopathy
0.00%
0/18 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Blood and lymphatic system disorders
Anemia
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Metabolism and nutrition disorders
Hypocalcemia
5.6%
1/18 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
0.00%
0/14 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Nervous system disorders
Lumbar radiculopathy
0.00%
0/18 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
Skin and subcutaneous tissue disorders
Hyperhidrosis
0.00%
0/18 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).
7.1%
1/14 • Number of events 1 • Serious Adverse Events were collected through 6 months after vaccination. Non-serious AE were collected for 30 days after vaccination. (Also see note at end of table).

Additional Information

Director, Clinical Research Operations Program

DAIT/NIAID

Phone: 301-594-7669

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place