EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19
NCT04960202 · Status: COMPLETED · Phase: PHASE2/PHASE3 · Type: INTERVENTIONAL · Enrollment: 2091
Last updated 2025-07-10
Summary
The purpose of this study is to determine whether PF-07321332/ritonavir is safe and effective for the treatment of adults who are ill with COVID-19 and do not need to be in the hospital, but are at an increased risk of developing severe illness. Throughout the study period, provision will be made to allow study visits to be conducted at a participant's home or another non-clinic location if available. The total study duration is up to 24 weeks.
Conditions
Interventions
- DRUG
-
PF-07321332
PF-07321332 (tablet)
- DRUG
-
Ritonavir
Ritonavir (capsule)
- DRUG
-
Placebo (tablet or capsule)
Sponsors & Collaborators
- lead INDUSTRY
Principal Investigators
-
Pfizer CT.gov Call Center · Pfizer
Study Design
- Allocation
- RANDOMIZED
- Purpose
- TREATMENT
- Masking
- QUADRUPLE
- Model
- PARALLEL
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2021-07-16
- Primary Completion
- 2021-12-09
- Completion
- 2022-04-25
- FDA Drug
- Yes
Countries
- United States
- Argentina
- Brazil
- Bulgaria
- Colombia
- Czechia
- Hungary
- India
- Japan
- Malaysia
- Mexico
- Poland
- Puerto Rico
- Russia
- South Africa
- South Korea
- Spain
- Thailand
- Turkey (Türkiye)
- Ukraine
Study Locations
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