EPIC-HR: Study of Oral PF-07321332/Ritonavir Compared With Placebo in Nonhospitalized High Risk Adults With COVID-19

Sponsor
Pfizer (Industry)
Overall Status
Completed
CT.gov ID
NCT04960202
Collaborator
(none)
2,245
201
2
9.3
11.2
1.2

Study Details

Study Description

Brief 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.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
2245 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Eligible participants with a confirmed diagnosis of SARS-CoV-2 infection will be randomized (1:1) to receive PF-07321332/ritonavir or placebo orally every 12 hours for 5 days (10 doses total).Eligible participants with a confirmed diagnosis of SARS-CoV-2 infection will be randomized (1:1) to receive PF-07321332/ritonavir or placebo orally every 12 hours for 5 days (10 doses total).
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
AN INTERVENTIONAL EFFICACY AND SAFETY, PHASE 2/3, DOUBLE-BLIND, 2-ARM STUDY TO INVESTIGATE ORALLY ADMINISTERED PF-07321332/RITONAVIR COMPARED WITH PLACEBO IN NONHOSPITALIZED SYMPTOMATIC ADULT PARTICIPANTS WITH COVID-19 WHO ARE AT INCREASED RISK OF PROGRESSING TO SEVERE ILLNESS
Actual Study Start Date :
Jul 16, 2021
Actual Primary Completion Date :
Dec 9, 2021
Actual Study Completion Date :
Apr 26, 2022

Arms and Interventions

Arm Intervention/Treatment
Experimental: PF-07321332/ritonavir

Orally administered PF-07321332+ritonavir

Drug: PF-07321332
PF-07321332 (tablet)

Drug: Ritonavir
Ritonavir (capsule)

Placebo Comparator: Placebo

Orally administered placebo

Drug: Placebo
Placebo (tablet or capsule)

Outcome Measures

Primary Outcome Measures

  1. Proportion of participants with COVID-19 related hospitalization or death from any cause [Day 1 through Day 28]

Secondary Outcome Measures

  1. Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs)of PF-07321332/ritonavir relative to placebo [Day 1 through Day 34]

  2. Incidence of Treatment-emergent Adverse Events (TEAEs) of PF-07321332/ritonavir relative to placebo of PF-07321332/ritonavir relative to placebo [Day 1 through Day 34]

  3. Duration of each targeted COVID-19 sign/symptom [Day 1 through Day 28]

  4. Severity of each targeted COVID-19 sign/symptom [Day 1 through Day 28]

  5. Proportion of participants with death (all cause) [Day 1 through Week 24]

  6. To determine the pharmacokinetics (PK) in plasma and whole blood of PF-07321332 in nonhospitalized symptomatic adult participants with COVID 19 who are at increased risk of progression to severe disease [Day 1 through Day 5]

  7. Viral titers measured by Reverse Transcription Polymerase Chain Reaction (RT-PCR) in nasal swabs [Day 1 through Day 14]

  8. Number of COVID-19 related medical visits other than hospitalization [Day 1 through Day 34]

  9. Number of days in hospital and intensive care unit for the treatment of COVID-19 [Day 1 through Day 34]

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Confirmed SARS-CoV-2 infection within 5 days prior to randomization

  • Initial onset of COVID-19 signs/symptoms within 5 days prior to the day of randomization and at least 1 of the specified COVID-19 signs/symptoms present on the day of randomization

  • Fertile participants must agree to use a highly effective method of contraception

  • Has at least 1 characteristic or underlying medical condition associated with an increased risk of developing severe illness from COVID-19

Exclusion Criteria:
  • History of or need for hospitalization for the medical treatment of COVID-19

  • Prior to current disease episode, any confirmed SARS-CoV-2 infection

  • Known medical history of active liver disease

  • Receiving dialysis or have known moderate to severe renal impairment

  • Known human immunodeficiency virus (HIV) infection with a viral load greater than 400 copies/mL or taking prohibited medications for HIV treatment

  • Suspected or confirmed concurrent active systemic infection other than COVID-19

  • History of hypersensitivity or other contraindication to any of the components of the study intervention

  • Current or expected use of any medications or substances that are highly dependent on CYP3A4 for clearance or are strong inducers of CYP3A4

  • Has received or is expected to receive convalescent COVID-19 plasma

  • Has received or is expected to receive any dose of a SARS-CoV-2 vaccine before the Day 34 visit

  • Participating in another interventional clinical study with an investigational compound or device, including those for COVID-19 through the long-term follow-up visit

  • Known prior participation in this trial or other trial involving PF-07321332

  • Oxygen saturation of <92% on room air, or on their standard home oxygen supplementation for those who regularly receive chronic supplementary oxygen for an underlying lung condition

  • Females who are pregnant or breastfeeding

Contacts and Locations

Locations

Site City State Country Postal Code
1 Cahaba Research, Inc. Pelham Alabama United States 35124
2 The Institute for Liver Health dba Arizona Clinical Trials Mesa Arizona United States 85210
3 The Institute for Liver Health dba Arizona Clinical Trials Tucson Arizona United States 85712
4 Hope Clinical Research Canoga Park California United States 91303
5 Ascada Research Fullerton California United States 92835
6 Atella Clinical Research LLC. La Palma California United States 90623
7 Ark Clinical Research Long Beach California United States 90806
8 American Institute of Research Los Angeles California United States 90017
9 South Bay Clinical Research Institute Redondo Beach California United States 90277
10 Hope Clinical Research (COVID Satellite Site) West Hills California United States 91304
11 Future Innovative Treatments, LLC Colorado Springs Colorado United States 80907
12 Xera Med Research Boca Raton Florida United States 33487
13 MOORE Clinical Research, Inc. Brandon Florida United States 33511
14 Innovative Research of West Florida, Inc. Clearwater Florida United States 33756
15 Herco Medical and Research Center Inc Coral Gables Florida United States 33134
16 Advance Clinical Research Group Cutler Bay Florida United States 33157
17 Beautiful Minds Clinical Research Center Cutler Bay Florida United States 33157
18 Unlimited Medical Research Group, LLC Hialeah Gardens Florida United States 33018
19 Qway Research Hialeah Florida United States 33010
20 Eastern Research Inc Hialeah Florida United States 33013
21 Inpatient Research Clinic Hialeah Florida United States 33013
22 Doral Medical Research LLC. Hialeah Florida United States 33016
23 Doral Medical Research,LLC Hialeah Florida United States 33016
24 Advanced Pulmonary Research Institute Loxahatchee Groves Florida United States 33470
25 Savin Medical Group, LLC Miami Lakes Florida United States 33014
26 Angels Clinical Research Institute Miami Florida United States 33122
27 LCC Medical Research Institute, LLC Miami Florida United States 33126
28 Premium Medical Research Corp Miami Florida United States 33126
29 Global Health Clinical Trials Corp Miami Florida United States 33135
30 South Florida Research Center, Inc. Miami Florida United States 33135
31 Suncoast Research Group, LLC Miami Florida United States 33135
32 I.V.A.M. Clinical & Investigational Center, LLC Miami Florida United States 33144
33 C'A Research Miami Florida United States 33174
34 ProLive Medical Research, Corp. Miami Florida United States 33175
35 Entrust Clinical Research Miami Florida United States 33176
36 Reed Medical Research Miami Florida United States 33176
37 Kendall South Medical Center Miami Florida United States 33185
38 Clinical Site Partners, Inc d/b/a CSP Miami Miami Florida United States 33186
39 Coral Research Clinic Corp Miami Florida United States 33186
40 Omega Research Orlando, LLC Orlando Florida United States 32808
41 NAPA Research LLC Pompano Beach Florida United States 33064
42 CDC Research Institute Port Saint Lucie Florida United States 34952
43 GCP, Global Clinical Professionals Saint Petersburg Florida United States 33705
44 USPA Advance Concept Medical Research Group LLC South Miami Florida United States 33143
45 Sunrise Research Institute Sunrise Florida United States 33325
46 Santos Research Center, CORP Tampa Florida United States 33615
47 Clinical Site Partners, Inc. dba CSP Orlando Winter Park Florida United States 32789
48 Research by Design, LLC Chicago Illinois United States 60643
49 New Orleans Sinus Center (COVID-19 Testing) Marrero Louisiana United States 70072
50 Tandem Clinical Research GI, LLC Marrero Louisiana United States 70072
51 Mercury Street Medical Group, PLLC Butte Montana United States 59701
52 Excel Clinical Research Las Vegas Nevada United States 89109
53 Meridian Clinical Research, LLC Endwell New York United States 13760
54 Monroe Biomedical Research Monroe North Carolina United States 28112
55 Accellacare Wilmington North Carolina United States 28401
56 Premier Medical Group Clarksville Tennessee United States 37040
57 PharmaTex Research, LLC Amarillo Texas United States 79109
58 ARC Clinical Research at William Cannon Austin Texas United States 78745
59 St Hope Foundation Bellaire Texas United States 77401
60 Conroe Willis Medical Research Conroe Texas United States 77304
61 South Texas Clinical Research Corpus Christi Texas United States 78413
62 SignatureCare Emergency Center Houston Texas United States 77008
63 Trio Clinical Trials, LLC Houston Texas United States 77008
64 C & R Research Services USA Houston Texas United States 77022
65 Next Level Urgent Care Houston Texas United States 77057
66 SMS Clinical Research, LLC Mesquite Texas United States 75149
67 SMS Clinical Research Mesquite Texas United States 75149
68 LinQ Research, LLC Pearland Texas United States 77584
69 Epic Medical Research Red Oak Texas United States 75154
70 Sun Research Institute San Antonio Texas United States 78215
71 BFHC Research San Antonio Texas United States 78249
72 Tranquility Research Webster Texas United States 77598
73 TPMG (Tidewater Physicians Multispecialty Group) Clinical Research Newport News Virginia United States 23606
74 Instituto de Investigaciones Clinicas Zarate Zarate Buenos Aires Argentina B2800DGH
75 Hospital De Clínicas Presidente Dr.Nicolas Avellaneda San Miguel de Tucuman Tucuman Argentina 4000
76 Chronos Pesquisa Clinica Brasilia Distrito Federal Brazil 72145-450
77 Hospital Agamenon Magalhaes Recife Pernambuco Brazil 52051-380
78 Centro de Estudos Clinicos do Interior Paulista (CECIP) Jau SAO Paulo Brazil 17201-130
79 Individual Practice for Primary Medical Care - IPPMC - Dr. P. Panayotov EOOD Burgas Bulgaria 8001
80 "Specialized Hospital for Active Treatment of Pneumo-Phthisiatric Diseases-Haskovo" Ltd Haskovo Bulgaria 6300
81 MHAT "Sv.Ivan. Rilski'' Kozloduy EOOD Kozloduy Bulgaria 3320
82 Diagnostic-Consultative Center I Lom EOOD Lom Bulgaria 3600
83 Multiprofile Hospital for Active Treatment- Sveti Nikolay Chudotvoretz EOOD Lom Bulgaria 3600
84 Medical centre Leo Clinic EOOD Lovech Bulgaria 5500
85 MHAT Heart and Brain EAD Pleven Bulgaria 5800
86 DCC Sveti Georgi EOOD Plovdiv Bulgaria 4000
87 MHAT "St. Panteleimon "- Plovdiv Plovdiv Bulgaria 4004
88 Multiprofile Hospital for Active Treatment Sveti Ivan Rilski - Razgrad AD Razgrad Bulgaria 7200
89 "Specialized Hospital for Active Treatment of Pneumo-Physiatric Diseases Dr. Dimitar Gramatikov - Ruse Bulgaria 7002
90 UMHAT Medica Ruse OOD Ruse Bulgaria 7013
91 Multiprofile Hospital for Active Treatment - Samokov EOOD Samokov Bulgaria 2000
92 Medical Center-1-Sevlievo EOOD Sevlievo Bulgaria 5400
93 Multiprofile Hospital For Active Treatment Shumen AD Shumen Bulgaria 9700
94 Multiprofile hospital for active treatment - Sliven to Military Medical Academy Sliven Bulgaria 8800
95 MHAT "Dr. Ivan Seliminski" AD, Sliven Sliven Bulgaria 8801
96 Diagnostic-Consultative Center XXII- Sofia ЕООD Sofia Bulgaria 1113
97 MHAT "St. Sofia" EOOD Sofia Bulgaria 1618
98 Specialized hospital for active treatment in pulmonology and phthisiology "Stara Zagora" EOOD Stara Zagora Bulgaria 6000
99 Multiprofile Hospital for Active Treatment Targovishte AD Targovishte Bulgaria 7700
100 Outpatient Clinic for Primary Outpatient Medical Care "Puls" - Dr. Mladen Buchvarov EOOD Tsarevo Bulgaria 8260
101 Medical center Leo Clinic EOOD Varna Bulgaria 9020
102 Specialized Hospital for Active Treatment of Pneumo-Phthisiatric Diseases Vratsa EOOD Vratsa Bulgaria 3000
103 Fundacion Cardiomet CEQUIN Armenia Quindio Colombia 630004
104 Zdraví-Fit, s.r.o. Protivín Czechia 398 11
105 Nemocnice Slany Slany Czechia 274 01
106 Trial Pharma Kft. Bekescsaba Hungary 5600
107 Debreceni Egyetem Klinikai Kozpont Infektologiai Klinika Debrecen Hungary 4031
108 Agria-Study Kft. Eger Hungary 3300
109 Trial Pharma Kft. Gyula Hungary 5700
110 Medifarma-98 Kft. Nyiregyhaza Hungary 4400
111 AIIMS Raipur Raipur Chhattisgarh India 492099
112 Jupiter Hospital Vadodara Gujarat India 390012
113 BGS Global Institute of Medical Sciences and Hospital Bangalore Karnataka India 560060
114 Lisie Hospital Kochi Kerala India 682018
115 Jehangir Clinical Development Centre Pvt. Ltd Pune Maharashtra India 411001
116 Lifepoint Research LLP Pune Maharashtra India 411057
117 Jawahar Lal Nehru Medical College Ajmer Rajasthan India 305001
118 Apex Hospitals Pvt Ltd Jaipur Rajasthan India 302017
119 Maharaja Agrasen Superspeciality Hospital Jaipur Rajasthan India 302039
120 Nil Ratan Sircar Medical College and Hospital Kolkata WEST Bengal India 700014
121 Aakash Healthcare Private Limited New Delhi India 110075
122 Sardar Patel Medical College Pavan PURI Bikaner, Rajasthan India 334003
123 International University of Health and Welfare Narita Hospital Narita Chiba Japan 286-8520
124 National Hokkaido Medical Center Sapporo Hokkaido Japan 063-0005
125 Rinku General Medical Center Izumisano Osaka Japan 598-8577
126 Tokyo Medical University Hachioji Medical Center Hachioji Tokyo Japan 1930998
127 National Center for Global Health and Medicine Shinjuku City Tokyo Japan 162-8655
128 Kyungpook National University Chilgok Hospital Daegu Korea, Republic of 41404
129 Incheon Medical Center Incheon Korea, Republic of 22532
130 Chonnam National University Bitgoeul Hospital Nam-gu Korea, Republic of 61748
131 SMG-SNU Boramae Medical Center Seoul Korea, Republic of 07061
132 Hospital Umum Sarawak Kuching Sarawak Malaysia 93586
133 Hospital Miri Miri Sarawak Malaysia 98000
134 Clinical Research Institute Saltillo S.A. de C.V. Saltillo Coahuila Mexico 25020
135 Asociacion Mexicana para la Investigacion Clinica A.C. (AMIC) Pachuca de Soto Hidalgo Mexico 42070
136 Instituto Jalisciense de Metabolismo, S.C. Guadalajara Jalisco Mexico 44670
137 JM Research Cuernavaca Morelos Mexico 62290
138 Christus - Latam Hub Center of Excellence and Innovation Center S.C. Monterrey Nuevo LEON Mexico 64060
139 Eukarya Pharmasite S.C. Monterrey Nuevo LEON Mexico 64718
140 Oaxaca Site Management Organization Oaxaca de Juarez Oaxaca Mexico 68000
141 InfectoLab Consultorios de Especialidad en Infectologia Baja California Tijuana Mexico 22010
142 Kohler & Milstein Research S.A. de C.V. Merida Yucatan Mexico 97070
143 EME RED Hospitalaria Mérida Yucatán Mexico 97000
144 Centro de Investigacion Clinica Del Pacifico SA de CV Acapulco Mexico
145 Hospital Cardiologica Aguascalientes Aguascalientes Mexico CP 201230
146 Instituto de Investigaciones Clínicas para la Salud Durango Mexico 34000
147 FAICIC S. de R.L. de C.V. Veracruz Mexico 91900
148 Sociedad de Metabolismo y Corazon S.C. Veracruz Mexico 91900
149 Arké SMO S.A de C.V Veracruz Mexico 91910
150 KLIMED Marek Klimkiewicz Bialystok Poland 15-704
151 Centrum Badań Klinicznych Piotr Napora Lekarze Spółka Partnerska Wroclaw Poland 51-162
152 Clinical Research Management Group Inc Ponce Puerto Rico 00780
153 Advance Medical Research Center San Juan Puerto Rico 00926
154 LLC Trekhgorka Medicine Odintsovo Moscow Region Russian Federation 143005
155 Barnaul City Hospital Number 5 Barnaul Russian Federation 656045
156 KDC "Evromedservis", OJSC Moscow Russian Federation 115419
157 Smolensk State Medical University Smolensk Russian Federation 214019
158 MERC Welkom Welkom FREE State South Africa 9460
159 East Rand Research Centre T/A Worthwhile Clinical Trials Benoni Gauteng South Africa 1500
160 Botho ke Bontle Health Services Pretoria Gauteng South Africa 0122
161 Synapta Clinical Research Center Durban Kwazulu Natal South Africa 4001
162 Limpopo Clinical Research Initiative Thabazimbi Limpopo South Africa 0380
163 MERC Middelburg Middelburg Mpumalanga South Africa 1055
164 Eba Centelles Centelles Barcelona [barcelona] Spain 08540
165 Complexo Hospitalario Universitario da Coruna A Coruña Spain 15006
166 Bangkok Centre Hotel Bangrak Bangkok Thailand 10500
167 Chula Field Hospital, Chulalongkorn University Sport center (Chantanayingyong Gymnasium) Pathum Wan District, Bangkok Thailand 10330
168 Thai Red Cross Emerging Infectious Diseases (EDI) Clinic Pathumwan, Bangkok Thailand 10330
169 The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Pathumwan Bangkok Thailand 10330
170 Faculty of Medicine - Khon Kaen University Muang Khon Kaen Thailand 40002
171 Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai Songkhla Thailand 90110
172 Ankara University Medical Faculty, Ibni-Sina Hospital Ankara Turkey 06230
173 Hacettepe University Medical Faculty Hospital Ankara Turkey 06230
174 Akdeniz Universitesi Hastanesi Antalya Turkey 07059
175 Istanbul Medipol University Clinical Research Ethics Committee Beykoz / Istanbul Turkey 34810
176 Gaziantep University Medical Faculty Gaziantep Turkey 27300
177 Istanbul Yedikule Gogus Hastaliklari ve Gogus Cerrahisi Egitim Arastirma Hastanesi Istanbul Turkey 34020
178 Istanbul University Cerrahpasa-Cerrahpasa Medical Faculty Istanbul Turkey 34098
179 Acibadem Saglik Hizmetleri ve Tic.A.S, Acibadem Atakent Hastanesi Istanbul Turkey 34303
180 Istanbul Universitesi Klinik Arastirmalar Mukemmeliyet Uygulama ve Arastirma Merkezi Istanbul Turkey 34452
181 Basaksehir Cam ve Sakura Sehir Hastanesi Istanbul Turkey 34480
182 Kocaeli University Medical Faculty Kocaeli Turkey 41380
183 Sbü Dr. Suat Seren Göğüs Hastaliklari Ve Cerrahisi Eğitim Ve Araştirma Hastanesi Konak/Izmir Turkey 35170
184 Mersin University Health Research and Application Hospital Mersin Turkey 33110
185 Sakarya University Training and Research Hospital Sakarya Turkey 54100
186 Karadeniz Teknik Universitesi Farabi Hastanesi Trabzon Turkey 61080
187 Communal non-profit enterprise "City Clinical Hospital #16" of Dnipro City Council Dnipro Ukraine 49069
188 Municipal Nonprofit Enterprise "Ivano-Frankivsk Regional Clinical Infectious Diseases Hospital of Ivano-Frankivsk Ukraine 76007
189 Communal nonprofit enterprise "Central City Clinical Hospital of Ivano-Frankivsk City Council" Ivano-Frankivsk Ukraine 76018
190 Municipal Nonprofit Enterprise "City Student Hospital" of Kharkiv City Council Kharkiv Ukraine 61002
191 Municipal Nonprofit Enterprise of Kharkiv Regional Council "Regional Clinical Infectious Diseases Kharkiv Ukraine 61096
192 "Municipal Non-Profit Enterprise "Alexander Clinical Hospital of Kyiv" of the Kyiv City Council Kyiv Ukraine 01601
193 Municipal non-commercial enterprise "Kyiv City Clinical Hospital #1" Of Executive Body Of the Kyiv Kyiv Ukraine 02091
194 Kyiv Railway Clinical Hospital No.2 of Branch "Health Center of the Public Joint Stock Company Kyiv Ukraine 03049
195 Polyclinic of Center for Medical Services and Rehabilitation of State Joint-Stock Holding Company Kyiv Ukraine 04050
196 Municipal NonProfit Enterprise of the Lviv Regional Council Lviv Regional Information and Analitical Lviv Ukraine 79008
197 Municipal Nonprofit Enterprise "Lviv City Clinic Hospital #4" Lviv Ukraine 79011
198 Municipal Enterprise "Poltava Regional Clinical Infectious Diseases Hospital" of Poltava Regional Poltava Ukraine 36011
199 Municipal Enterprise "Volyn Regional Clinical Hospital" of Volyn Regional Council Tarasove Village Ukraine 45625
200 Municipal Non-commercial Enterprise "Vinnytsia City Clinical Hospital №1" Vinnytsia Ukraine 21029
201 Communal Enterprise "Hospital #1" of Zhytomyr City Council Zhytomyr Ukraine 10002

Sponsors and Collaborators

  • Pfizer

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Pfizer
ClinicalTrials.gov Identifier:
NCT04960202
Other Study ID Numbers:
  • C4671005
  • 2021-002895-38
  • EPIC-HR
First Posted:
Jul 13, 2021
Last Update Posted:
Jul 22, 2022
Last Verified:
Jul 1, 2022
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Pfizer
Additional relevant MeSH terms:

Study Results

No Results Posted as of Jul 22, 2022