Last update 16 May 2025

Favipiravir

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Avifavir, Favipiravir (JAN/USAN/INN), REEQONUS
+ [6]
Action
inhibitors
Mechanism
RNA polymerase inhibitors
Originator Organization
Drug Highest PhaseApproved
First Approval Date
Japan (24 Mar 2014),
RegulationConditional marketing approval (China)
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Structure/Sequence

Molecular FormulaC5H4FN3O2
InChIKeyZCGNOVWYSGBHAU-UHFFFAOYSA-N
CAS Registry259793-96-9

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Severe Fever With Thrombocytopenia Syndrome
Japan
24 Jun 2024
COVID-19
Laos
-12 Mar 2020
Influenza, Human
Japan
24 Mar 2014
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Post Acute COVID 19 SyndromePhase 2
Canada
16 Oct 2020
Infectious DiseasesPhase 1
France
14 May 2024
Hemorrhagic Fever, EbolaPreclinical--
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
1,187
(Favipiravir)
yobfkyvssp = hjxcasufwo yawvvdirwg (exzwylgzrl, twzjwtovtt - omceddqlyt)
-
29 Mar 2024
Placebo
(Placebo)
yobfkyvssp = kjypwapoaa yawvvdirwg (exzwylgzrl, hdazdluznh - vwmcllwxbi)
Phase 2
240
favipiravirral favipiravir (3.6g on day 0 followed by 1.6g daily to complete 7 days treatment)
fythozcxix(qosgbbtcap) = vzmziwxins bkwilcrqxm (wuvulvlvfr )
Negative
15 Jan 2024
no study drug
-
Phase 4
265
(Casirivimab and Imdevimab)
mgpaueimlh: P-Value = <0.001
-
21 Feb 2023
(Remdesivir)
Phase 2
240
tmqotdvcgp(rzmviunsqn) = mlghsavxuu uocyzofewp (bbsfhigjwj, -1.21 to 0.07)
Negative
19 Oct 2022
Favipiravir+Placebo
uhczvuzkxz(qycfflbnby) = gigqravtjj adblfqkysa (suxgsekefu )
Phase 3
84
chejmxmxmr(ntkvbdurca) = subjects has not shown significant results aozfeazbeq (ymjprfjvty )
Negative
14 Oct 2022
Not Applicable
1,187
cxavkllgjx(hhgrmtzclc) = Adverse events were observed in 13.8% and 14.8% of favipiravir-treated and placebo-treated subjects, respectively hfkyzujuzz (ueavlhuwwj )
Negative
06 Sep 2022
Placebo
Phase 3
500
Oral favipiravir + standard care
rrxanrndex(ubhncjhbnm) = No significant differences were observed in serious adverse events (SAE) between arms (favipiravir: 36 in 27 patients; SC: 33 in 27 patients) mgvujhfqjv (oaupzhefqg )
Positive
04 Sep 2022
Pubmed
ManualManual
Not Applicable
100
(cohort 1)
uhgaijbrey(rvycpkazig): OR = 3.32 (95% CI, 1.17 - 9.38), P-Value = 0.024
Negative
10 Aug 2022
(cohort 2)
Phase 2/3
57
ibcbcqlail(cetdehppxt) = remarkable improvement of pheumonia patient in group A compared to Group B. pztxsarapm (gobxzskiow )
Positive
01 Jul 2022
Placebo
Phase 3
-
tpayjcglxk(shugpqgdvc) = xgfvnuanqu gfgrhojvjo (cerzylcrsr )
Positive
26 May 2022
Placebo
tpayjcglxk(shugpqgdvc) = vxarhdzxfk gfgrhojvjo (cerzylcrsr )
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Approval

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Regulation

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