A Study of How Ibuzatrelvir is Taken up Into the Blood of Healthy Adults After Taking Different Tablets of Ibuzatrelvir
← catalyst calendarSponsored by Pfizer (industry) · PFE — their whole pipeline →.
Phase
Phase 1
Status
Completed
Study type
Interventional
Design
Randomized · None · Basic science
Enrollment
17actual
Sites
1
Country
Belgium
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 | 2026-04-13 | actual | When the study began enrolling |
| Primary completion | 2026-06-03 | actual | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2026-06-29 | actual | The whole study's end, after follow-up |
| First posted | 2026-04-27 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2026-07-28 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Conditions
- Coronavirus Disease 2019
- Coronavirus Disease 2019 (COVID-19)
- COVID-19 (Coronavirus Disease 2019)
- Upper Respiratory Tract Infections
- Respiratory Tract Infection
- Respiratory Tract Diseases
- COVID-19
- COVID-19 Infection
- COVID-19 SARS-CoV-2 Infection
- Pneumonia
- Lung Diseases
Interventions
- Drug: Ibuzatrelvir co-process API film coated tablet
- Drug: Ibuzatrelvir filmcoated tablet
Primary outcomes
what the primary-completion date above is the date OFPlasma ibuzatrelvir AUCinf (as data permit, otherwise AUClast) in the fasted state
measured Hour 0 pre-dose in each period and 0.5, 1, 2, 4, 6, 8, 12, 24, and 48 post-dose in each period
Plasma ibuzatrelvir AUCinf (as data permit, otherwise AUClast) in the fasted state
measured Hour 0 pre-dose in each period and 0.5, 1, 2, 4, 6, 8, 12, 24, and 48 post-dose in each period
Plasma ibuzatrelvir Cmax in the fasted state
measured Hour 0 pre-dose in each period and 0.5, 1, 2, 4, 6, 8, 12, 24, and 48 post-dose in each period
Plasma ibuzatrelvir Cmax in the fasted state
measured Hour 0 pre-dose in each period and 0.5, 1, 2, 4, 6, 8, 12, 24, and 48 post-dose in each period
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