COVID-19 Antibody and Reinfection Study

Completed

Conditions studied: COVID-19 Testing

In brief

The goal of this study is to establish a cohort of Kaiser Permanente Colorado (KPCO) members who have and have not had COVID-19 infection for serial antibody testing and PCR testing to: 1. Quantify antibody titers among participants over 9 months. 2. Determine the rates of asymptomatic, mild, and severe recurrent infection among participants with prior COVID-19. 3. Examine association between antibody titer levels and risk of recurrent infection using a case control analysis nested in the cohort.

Key facts

Study ID
NCT05365750
Run by
Kaiser Permanente
People needed
4235
Starts
2020-06-15
Expected to finish
2024-12-31
Last updated by the study team
2025-09-18

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

Where it is running

Full record on ClinicalTrials.gov

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