A Study to Learn About How Well Yearly Updates to the COVID-19 Vaccine Work to Protect People From COVID-19 and How Much Money People Spend on Healthcare for COVID-19
← catalyst calendarNCT06923137 · readout in 1,534 d
Sponsored by Pfizer (industry) · PFE — their whole pipeline →.
Phase
—
Status
Active, not recruiting
Study type
Observational
Enrollment
1estimated
Sites
1
Country
United States
Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →
Source: ClinicalTrials.gov, retrieved 2026-08-19
Dates
each axis at the precision it was filed, with the registry's own basis| Date | Filed | Basis | What it is |
|---|---|---|---|
| Start | 2025-04-16 | actual | When the study began enrolling |
| Primary completion | 2030-10-31 | estimated | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2030-10-31 | estimated | The whole study's end, after follow-up |
| First posted | 2025-04-11 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2025-11-19 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Conditions
- COVID-19 SARS-CoV-2 Infection
- COVID-19
- COVID-19 Infection
- Coronavirus Disease 2019 (COVID-19)
- COVID-19 (Coronavirus Disease 2019)
- COVID-19 Vaccination
- COVID-19 Vaccines
- SARS-CoV-2 Infection, COVID19
- SARS-CoV-2 Infection, COVID-19
Intervention
- Drug: BNT162b2
Primary outcomes
what the primary-completion date above is the date OFCOVID-19 outpatient encounter in adults
measured 6 months
COVID-19 inpatient encounter in adults
measured 6 months
COVID-19 emergency department visit in adults
measured 6 months
COVID-19 urgent care encounter in adults
measured 6 months
COVID-19 critical illness in adults
measured 6 months
Cost associated with healthcare encounter in adults
measured 6 months
Length of inpatient stay in adults
measured 6 months
Publications
- PMID 42594639 — linked by the registry
- PMID 40712320 — linked by the registry
Linked on the registry record. A “linked by the registry” entry is NLM's own automated PubMed match, not a claim by the sponsor that the paper reports this study.
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