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Clinical Trial Summary

Lung transplant recipients have poor outcomes after COVID-19 infection with mortality. Due to the immunosuppression, they have had poor responses to SARS-CoV-2 vaccine and remain at high risk of poor outcomes. This is a Phase I/II clinical trial to evaluate the safety and immune response from a higher dose mRNA-1273 vaccine among lung transplant recipients who have already received three or four doses of the COVID-19 vaccine.


Clinical Trial Description

This is a Phase I/II open-label dose-finding trial among lung transplant recipients who received three or four mRNA vaccine doses (mRNA-1273 or BNT162b2) after lung transplantation to: standard-dose (50 ug), mid-dose (100 ug) or high-dose (200 ug) mRNA-1273 booster vaccine. Sixty participants will be enrolled into three dose groups: 1) Standard-dose - 20 participants, 2) Mid-dose - 20 participants, 3) High-dose - 20 participants. The first 2 participants in both the mid-dose and high dose groups will be considered the 'sentinel' group. Participants in the sentinel group will receive the vaccine and undergo a 7-day observation period for safety and reactogenicity before additional participants are enrolled into that dose group. Overall study enrollment will begin with the mid-dose sentinel group (n=2). During the observation period for the mid-dose sentinel group, we will enroll two participants into the standard-dose group. Once the mid-dose sentinel group completes their 7-day observation period without triggering halting rules and is approved to proceed by the DSMB, we will enroll the next 27 participants (Cohort 1) with a 2:1 randomization into the mid-dose (n=18) and standard-dose (n=9) groups. Once all 20 participants have received their mid-dose vaccine without triggering halting rules and is approved to proceed by the DSMB, we will enroll the high-dose sentinel group (n=2). Once the high-dose sentinel group completes their 7-day observation period without triggering halting rules and is approved to proceed by the DSMB, we will enroll the next 27 participants (Cohort 2) with a 2:1 randomization into the high-dose (n=18) and standard-dose (n=9) groups. All 20 participants in the mid-dose group will be enrolled prior to the enrollment of the high-dose group. We will perform stratified randomization for the two cohorts based on: 1) the number of prior doses, and 2) prior receipt of any BNT162b2 vaccines. Randomization with be done by the UCLA Clinical and Translational Science Institute (CTSI) statistics team based on scheduled participants prior to the study visit. The 6 participants in the sentinel (n=4) and initial (n=2) groups (Table 1) will be assigned into the 3 groups based on their scheduled visit day. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05280158
Study type Interventional
Source University of California, Los Angeles
Contact
Status Completed
Phase Phase 1/Phase 2
Start date March 10, 2022
Completion date February 27, 2023

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