Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 14, 2026, 10:08 PM EDT

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Showing 1–9 of 9 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Healthy Participants
Interventions
PF-07321332/ritonavir, Ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 17 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
50
States / cities
Phoenix, Arizona • Los Angeles, California • Washington D.C., District of Columbia + 32 more
Conditions
Healthy Participant
Interventions
PF 07321332/ritonavir, Carbamazepine
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
COVID-19
Interventions
PF-07321332 (nirmatrelvir)/ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
52
States / cities
Huntsville, Alabama • Granada Hills, California • Inglewood, California + 26 more
Completed Phase 1 Interventional Accepts healthy volunteers Results available

PF-07321332/Ritonavir and Ritonavir on Dabigatran Study in Healthy Participants

NCT05064800
Conditions
Healthy Participants
Interventions
Dabigatran, PF-07321332/ritonavir + Dabigatran, Ritonavir + Dabigatran
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Hollywood, Florida
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
13
States / cities
Birmingham, Alabama • Cutler Bay, Florida • DeBary, Florida + 6 more
Completed Phase 1 Interventional Accepts healthy volunteers Results available

STUDY OF PF-07321332 IN HEALTHY PARTICIPANTS

NCT04756531
Conditions
Healthy Participants
Interventions
PF-07321332 Dose 1, PF-07321332 Dose 2, PF-07321332 Dose 3, PF-07321332 Dose 4, PF-07321332 Dose 5, PF-07321332 Dose 4 or Placebo (Fed)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 60 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Bioavailability
Interventions
PF-07321332/ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Bioavailability
Interventions
PF-07321332/ritonavir, PF-07321332
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
New Haven, Connecticut