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CompletedNCT02008344Updated Nov 11, 2015

Phase 3 Efficacy and Safety Study of Favipiravir for Treatment of Uncomplicated Influenza in Adults

A Phase 3 interventional study of favipiravir and placebo in Influenza, sponsored by MDVI, LLC. Completed at 247 sites in 11 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2015-11-11.

Sponsored by MDVI, LLC · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
1,161
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The purpose of this study is to determine if favipiravir is effective in reducing the time to resolution of influenza symptoms.

Read the detailed description

The purpose of this study is to determine if a 5-day regimen of favipiravir reduces the time to alleviation of influenza symptoms, resolution of fever, and viral shedding, in subjects with uncomplicated influenza compared to no treatment (e.g. placebo).

02

Conditions studied

  • Influenza

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Keywords

  • influenza
  • flu
  • fever
  • cough
  • body aches
  • headache
  • nasal congestion
  • body pains
  • sore throat
  • fatigue
  • T-705
  • favipiravir
  • favor
  • flu symptoms
03

In context

Influenza, Human

2,214 studies on the registry are indexed under Influenza, Human; 163 are open to participants now.

This study's enrollment of 1,161 is above the median of 238 across 1,853 interventional studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

MDVI, LLC is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • At time of enrollment has 2 or more of the following symptoms (moderate to severe in intensity) that began 48 hours or less prior to the anticipated start of dosing with study medication: cough, sore throat, headache, nasal congestion, body aches and pains, fatigue
  • Has a fever at the first visit or in the 6 hours prior if antipyretics were taken, defined as: ≥ 38.0°C (≥ 100.4°F) if \< 65 years old; or ≥ 37.8°C (≥ 100.0°F) if ≥ 65 years old
  • Tests positive for influenza A or B during the 48 hours between onset of symptoms and anticipated dosing with study medication as confirmed by RAT or PCR testing (study or non-study procedure); or per Investigator and Medical Monitor discretion in the event there is a known influenza outbreak circulating in the community or the subject has been in close contact with a person who was recently confirmed to have laboratory-confirmed influenza
  • Willing to adhere to strict contraceptive measures throughout study and for 3 months following last dose of study medication

Exclusion criteria

Exclusion Criteria:

  • Female subjects who are pregnant, currently breast-feeding, or have a positive pregnancy test at Screening
  • Has taken an anti-influenza drug, or received any live attenuated influenza vaccine within 4 weeks prior to signing the informed consent
  • Has underlying chronic respiratory disease; includes bronchial asthma if currently experience asthma symptoms, requires current asthma treatment, or has had an asthma attack in the past year
  • Is suspected of having bacterial respiratory infection (i.e., expectoration of purulent or mucopurulent sputum and/or infiltrate in lung observed on chest x ray, or is on antibiotics for pulmonary disease) at start of study
  • Has a history of gout or is under treatment for: gout or hyperuricemia; hereditary xanthinuria; hypouricemia or xanthine calculi of the urinary tract
  • Has a history of hypersensitivity to an anti-viral nucleoside-analog drug targeting a viral RNA polymerase
  • Current use of adrenocorticosteroids (except topical preparation) or immunosuppressive drugs
  • Has an allergy or contraindication to use of acetaminophen (paracetamol)
  • Has a serious chronic disease, history of alcohol or drug abuse within preceding 2 years, psychiatric illness not well controlled (not on stable regimen > 1 year), or is deemed by the Investigator to be ineligible for any reason
  • Previously participated in a clinical trial of favipiravir (T-705)
  • Has renal insufficiency requiring hemodialysis or continuous ambulatory peritoneal dialysis (CAPD)
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,161 participants (actual)

Study arms

  • Active comparator
    favipiravir

    Day 1: 1800 mg (1st loading dose), 1800 mg (2nd loading dose) Days 2-5: 800 mg BID (3rd to 10th dose)

    Drug: favipiravir

  • Placebo comparator
    placebo

    Day 1: 1800 mg (1st loading dose), 1800 mg (2nd loading dose) Days 2-5: 800 mg BID (3rd to 10th dose)

    Drug: placebo

Interventions

  • Drugfavipiravir

    Administered twice daily over 5 consecutive days for a total of 10 doses. * Day 1: 1800 mg twice daily (loading doses) * Days 2 through 5: 800 mg twice daily

    Also known as: T-705

  • Drugplacebo

    Administered twice daily over 5 consecutive days for a total of 10 doses. * Day 1: 1800 mg twice daily (loading doses) * Days 2 through 5: 800 mg twice daily

06

What researchers measure

Primary outcomes

  1. Time to alleviation of all primary influenza symptoms and fever

    Time from the start of study treatment until alleviation of all primary influenza symptoms (i.e. cough, sore throat, headache, nasal congestion, body aches and pains, fatigue) and to resolution of fever

    Time frame: 21 days

Secondary outcomes

  1. Time to alleviation of each of the primary influenza symptoms and fever

    Time from the start of study treatment until alleviation of each of the following influenza symptoms (cough, sore throat, headache, nasal congestion, body aches and pains, and fatigue) and to resolution of fever

    Time frame: 21 days

  2. To characterize the PK of favipiravir when used under clinical conditions

    Time frame: 21 days

Other outcomes

  1. Changes in viral load

    Changes in viral load as measured from nasopharyngeal swabs

    Time frame: 15 days

  2. Safety

    Adverse events and clinical laboratory tests for systemic safety including hematology, clinical chemistry, and urinalysis

    Time frame: 21 days

07

Study locations

247 sites
  • Birmingham, Alabama 35209, United States
  • Birmingham, Alabama 35242, United States
  • Huntsville, Alabama 35801, United States
  • Camp Verde, Arizona 86322, United States
  • Mesa, Arizona 85202, United States
  • Little Rock, Arkansas 72205, United States
  • Anaheim, California 92804, United States
  • Carmichael, California 95608, United States
  • Chula Vista, California 91911, United States
  • Fountain Valley, California 92708, United States
  • Fresno, California 93702, United States
  • Garden Grove, California 92844, United States
  • Gold River, California 95670, United States
  • Harbor City, California 90710, United States
  • La Mesa, California 91942, United States
  • Lomita, California 90717, United States
  • Los Angeles, California 90017, United States
  • Modesto, California 95350, United States
  • North Hollywood, California 91606, United States
  • Northridge, California 91325, United States
  • Oceanside, California 92056, United States
  • Paramount, California 90723, United States
  • Roseville, California 95661, United States
  • San Diego, California 92103, United States
  • San Diego, California 92120, United States
  • San Gabriel, California 91776, United States
  • Stockton, California 95204, United States
  • Upland, California 91786, United States
  • Centennial, Colorado 80112, United States
  • Colorado Springs, Colorado 80907, United States
  • Colorado Springs, Colorado 80909, United States
  • Colorado Springs, Colorado 80920, United States
  • Denver, Colorado 80246, United States
  • Glenwood Springs, Colorado 81601, United States
  • Waterbury, Connecticut 06708, United States
  • Celebration, Florida 34747, United States
  • Clearwater, Florida 33761, United States
  • Delray Beach, Florida 33484, United States
  • Edgewater, Florida 32132, United States
  • Hialeah, Florida 33010, United States
  • Hialeah, Florida 33012, United States
  • Hialeah, Florida 33016, United States
  • Jacksonville, Florida 32216, United States
  • Kissimmee, Florida 34759, United States
  • Lauderdale Lakes, Florida 33319, United States
  • Lynn Haven, Florida 32444, United States
  • Miami, Florida 33134, United States
  • Miami, Florida 33135, United States
  • Miami, Florida 33144, United States
  • Miami, Florida 33155, United States
  • Miami, Florida 33173, United States
  • Miami, Florida 33175, United States
  • New Port Richey, Florida 34653, United States
  • New Smyrna Beach, Florida 32169, United States
  • Ormond Beach, Florida 32174, United States
  • Pembroke Pines, Florida 33026, United States
  • Plantation, Florida 33322, United States
  • Port Orange, Florida 32127, United States
  • Saint Cloud, Florida 34769, United States
  • South Miami, Florida 33143, United States
  • Summerfield, Florida 34491, United States
  • Tampa, Florida 33607, United States
  • Atlanta, Georgia 30328, United States
  • Dunwoody, Georgia 30338, United States
  • Norcross, Georgia 30092, United States
  • Oakwood, Georgia 30566, United States
  • Riverdale, Georgia 30274, United States
  • Snellville, Georgia 30078, United States
  • Idaho Falls, Idaho 83404, United States
  • Twin Falls, Idaho 83301, United States
  • Brownsburg, Indiana 46112, United States
  • Evansville, Indiana 47714, United States
  • Wichita, Kansas 67203, United States
  • Bardstown, Kentucky 40004, United States
  • Monroe, Louisiana 71201, United States
  • New Orleans, Louisiana 70115, United States
  • Opelousas, Louisiana 70570, United States
  • Columbia, Maryland 21045, United States
  • Towson, Maryland 21204, United States
  • Watertown, Massachusetts 02472, United States
  • Worcester, Massachusetts 01655, United States
  • Madison Heights, Michigan 48071, United States
  • Troy, Michigan 48085, United States
  • Saint Louis, Missouri 63110, United States
  • Billings, Montana 59102, United States
  • Butte, Montana 59701, United States
  • Missoula, Montana 59808, United States
  • Bellevue, Nebraska 68005, United States
  • Las Vegas, Nevada 89102, United States
  • Las Vegas, Nevada 89109, United States
  • Las Vegas, Nevada 89119, United States
  • Las Vegas, Nevada 89123, United States
  • Lodi, New Jersey 07644, United States
  • New York, New York 10016, United States
  • Calabash, North Carolina 28467, United States
  • Charlotte, North Carolina 28207, United States
  • Charlotte, North Carolina 28210, United States
  • Greensboro, North Carolina 27410, United States
  • Hickory, North Carolina 28601, United States
  • Huntersville, North Carolina 28078, United States

Showing the first 100 of 247 sites across 11 countries.

08

References and documents

Publications

  • Hayden FG, Lenk RP, Stonis L, Oldham-Creamer C, Kang LL, Epstein C. Favipiravir Treatment of Uncomplicated Influenza in Adults: Results of Two Phase 3, Randomized, Double-Blind, Placebo-Controlled Trials. J Infect Dis. 2022 Nov 11;226(10):1790-1799. doi: 10.1093/infdis/jiac135. PubMed 35639525 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 11, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02008344
Lead sponsor
MDVI, LLC
Collaborators
MediVector, Inc.
Responsible party
Sponsor
First posted
Dec 11, 2013
Start date
Dec 2013
Primary completion
Jan 2015
Completion
Jan 2015
Last update
Nov 11, 2015

Study contacts

Carol Epstein, MD
study director · MediVector, Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2015. You cannot join it, but the record below documents what was studied.

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