Skip to content

Randomized Multicenter Study on the Efficacy and Safety of Favipiravir for Parenteral Administration Compared to Standard of Care in Hospitalized Patients With COVID-19

Open-label Randomized Multicenter Comparative Study on the Efficacy and Safety of AREPLIVIR® (Favipiravir) for Parenteral Administration (PROMOMED RUS LLC, Russia) in Hospitalized Patients With COVID-19

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05185284
Enrollment
217
Registered
2022-01-11
Start date
2021-08-11
Completion date
2021-12-30
Last updated
2022-01-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Keywords

SARS-CoV-2, Areplivir, 2019-nCoV, Favipiravir, Pneumonia, Coronavirus Infections

Brief summary

This is open-labe randomized multicenter comparative Phase III study conducted in 7 medical facilities. The objective of the study is to assess the efficacy and safety of Favipiravir for parenteral administration compared with the Standard of care (SOC) in hospitalized patients with moderate COVID-19 pneumonia.

Detailed description

Upon signing the informed consent form and screening, 217 eligible patients hospitalized with COVID-19 pneumonia were randomized at a 1:1 ratio to receive either Favipiravir intravenously by drip infusion for 2 hours 1600 mg twice a day (BID) on Day 1 followed by 800 mg BID on Days 2-14 (1600/800 mg), or SOC. The course of treatment by Favipiravir is 10 days.

Interventions

DRUGFavipiravir

400 mg, lyophilizate for preparation of concentrate for solution for infusion

DRUGRemdesivir

100 mg, lyophilizate for preparation of concentrate for solution for infusion

Sponsors

Solyur Pharmaceuticals Group
CollaboratorUNKNOWN
Promomed, LLC
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Availability of the Informed Consent Form of the Patient Information Leaflet (PIL) signed and dated by patient. 2. Men and women aged 18 to 80 years inclusive at the time of signing the Informed Consent Form in PIL. 3. Confirmed case of COVID-19 at the time of screening based on SARS-CoV-2 RNA test using nucleic acid amplification (NAA) method. It is acceptable to include a patient with a presumptive COVID-19 diagnosis prior to receiving the results of SARS-CoV-2 RNA test made at the screening stage. 4. Hospital admission due to COVID-19. 5. Moderate severity infection with SARS-CoV-2: * Clinical signs: * Mandatory: CT pattern typical of a viral lesion (lesion volume is minimal or moderate; CT 1-2). * Additional (at least 1 of the following criteria): * body temperature \> 38 °C; * RR \> 22/min; * shortness of breath on exertion; * SpO2 \< 95%; * Serum CRP \> 10 mg/L. 6. Patient's consent to use reliable contraceptive methods throughout the study and within 1 month for women and 3 months for men after its completion. Reliable means of contraception are: sexual abstinence, use of condom in combination with spermicide. For men (optional): Consent to avoid sexual contact with pregnant women for the duration of the study and for 3 months after its completion. Women incapable of childbearing may also participate in the study (with past history of: hysterectomy, tubal ligation, infertility, menopause for more than 2 years), as well as men with infertility or a history of vasectomy.

Exclusion criteria

1. Hypersensitivity to favipiravir, remdesivir and/or other components of the study drug. 2. Impossibility of CT procedure (for example, gypsum dressing or metal structures in the field of imaging). 3. History of vaccination against COVID-19. 4. History of presumptive or confirmed COVID-19 case of moderate, severe and extremely severe course of the disease. 5. Use of favipiravir or remdesivir within 10 days prior to screening. 6. The need to use drugs from the list of prohibited therapy. 7. Meeting the criteria for severe and extremely severe course of the disease. 8. Need for treatment in the intensive care unit. 9. Impaired liver function (AST and/or ALT ≥ 2 UNL and/or total bilirubin ≥ 1.5 UNL) at the time of screening. 10. Renal impairment (GFR \< 60 ml/min) at the time of screening. 11. History of gout. 12. Positive testing for HIV, syphilis, hepatitis B and/or C. 13. Chronic heart failure FC III-IV according to New York Heart Association (NYHA) functional classification (see Appendix 2). 14. Malignancies in the past medical history. 15. Alcohol, pharmacological and/or drug addiction in the past medical history and/or at the time of screening. 16. Schizophrenia, schizoaffective disorder, bipolar disorder, or other history of mental pathology or suspicion of their presence at the time of screening. 17. Severe, decompensated or unstable somatic diseases (any disease or condition that threaten the patient's life or impair the patient's prognosis, and also make it impossible for him/her to participate in the clinical study). 18. Any history data that the investigating physician believes could lead to complication in the interpretation of the study results or create an additional risk to the patient as a result of his/her participation in the study. 19. Patient's unwillingness or inability to comply with procedures of the Study Protocol (in the opinion of physician investigator). 20. Pregnant or nursing women or women planning pregnancy. 21. Participation in another clinical study for 3 months prior to inclusion in the study. 22. Other conditions that, according to the physician investigator, prevent the patient from being included in the study.

Design outcomes

Primary

MeasureTime frameDescription
Rate of Clinical Status ImprovementBy Visit 3, approximately 10 daysRate of clinical status improvement by WHO categorical ordinal scale of clinical status improvement by 2 or more categories by Day 10. WHO Ordinal Scale for Clinical Improvement (WHO-OSCI), 0 - uninfected (There are no clinical and virological signs of infection), 8 - dead, higher scores mean a worse outcome
Time to Clinical Improvement28 daysTime (in days) to improvement in clinical status by WHO categorical ordinal scale of clinical status improvement

Secondary

MeasureTime frameDescription
Change in the Level of Lung Damage According to CT14 DaysAssessment of lung injury (degree of damage by empirical visual scale and % of patients) according to CT data comparing to baseline. The number of patients in whom by the end of therapy there was an improvement in the condition of the lungs (a decrease in the volume of the lesion according to CT)
Rate of Viral Elimination14 daysPercentage of patients with SARS-CoV-2 elimination (negative test for SARS-CoV-2 by NAA method) on Days 5, 10, and 14.
Rate of Transfer to the Intensive Care Unit28 daysPercentage of patients transferred to intensive care unit
Rate of Clinical Status Improvement14 daysRate of clinical status improvement by WHO categorical ordinal scale of clinical status improvement by 2 or more categories at Visits 2 (Day 5) and 4 (Day 14)
Rate of the Use of Mechanical Ventilation28 DaysPercentage of cases with mechanical lung ventilation (% of patients)
Mortality28 DaysIncidence of fatal cases (% of patients)
Rate of the Use of Non-invasive Lung Ventilation28 DaysPercentage of cases with non-invasive lung ventilation
End of Fever on Days of study14 DaysPercentage of patients with fever disappearance (body temperature \< 37,2 °C in 3 consecutive measurements without antipyretic medication) an Days 5, 10 and 14.

Countries

Russia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026