CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 48 enrolled
Drug / intervention
Pfizer-BioNTech COVID-19 Vaccine 2023-2024 +3 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05077254
NCT05077254Phase 2Completed

A Randomized Study to Evaluate Antibody Response to an Additional Dose of SARS-CoV-2 Vaccination With and Without Immunosuppression Reduction in Kidney and Liver Transplant Recipients

National Institute of Allergy and Infectious Diseases (NIAID)·interventional·Posted Oct 14, 2021·Updated Apr 23, 2026

In Brief

A Phase 2 clinical trial evaluating Pfizer-BioNTech COVID-19 Vaccine 2023-2024, Moderna COVID-19 Vaccine 2023-2024, and 2 other interventions for Kidney Transplant Recipients and Liver Transplant Recipients. Completed, enrolled 48 participants across 15 sites.

Detailed Summary

This study will enroll individuals who have: * Completed primary series of mRNA COVID-19 vaccine, and * An antibody response ≤ 2500 U/mL measured at least 30 days after the last dose of vaccine. This group of patients is at high risk for severe COVID-19 disease due to pharmacologic immunosuppression and a high prevalence of non-transplant risk factors such as obesity and diabetes.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 2CompletedFinished
20222023202420252026
First PostedOct 14, 2021
Enrollment StartDec 6, 2021
Primary CompletionFeb 28, 2024
Study CompletionFeb 21, 2025
TodayJul 2, 2026
Enrollment to primary: 2.2 yearsPosted 4.7 years ago

Interventions

Pfizer-BioNTech COVID-19 Vaccine 2023-2024biological

Administration: One dose administered intramuscularly.

Moderna COVID-19 Vaccine 2023-2024biological

Administration: One dose administered intramuscularly.

SOC IS Regimendrug

Participants will continue to take their prescribed immunosuppression (IS) medications without alterations in schedule and dosing, per protocol instruction.

SOC IS Reductiondrug

Participants will reduce their standard of care immunosuppression medications (IS) before and after the COVID-19 vaccine booster (1 dose), per protocol instruction.