meta|Evidence - COVID-19
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favipiravir (n=44) vs. favipiravir (n=45)
randomized controlled trial high risk of bias
immediate favipiravir
favipiravir administered orally between day 1 and day 10, 1800 mg twice a day on day 1 followed by 800 mg twice a day from day 2
delayed favipiravir
favipiravir administered orally between day 6 and day 15, 1800 mg twice a day on day 6 followed by 800 mg twice a day from day 7
COVID 19 all comers
asymptomatic and minimally symptomatic patientsRT-PCR test positive
open label
25 centres, japan
favipiravir (n=10) vs. standard of care (n=10)
randomized controlled trial some concerns about risk of bias
favipiravir
The first dose was 1600 mg or 2200mg orally, followed by 600 mg each time, three times a day, and the duration of administration was not more than 14 days
standard treatment
antiviral treatment included lopinavir/ritonavir (400 mg/100 mg, bid, po.) or darunavir/cobicistat (800 mg/150 mg, qd, po.) and arbidol (200 mg, tid, po.
3 arms: favipiravir (n=10), baloxavir marboxil (n=10), current antiviral treatment (n=10)
COVID 19 all comers
exclusion of considered as severe disease: has an ongoing respiratory deficiency and subjected to invasive mechanical ventilation; or presence of shock; or admitted to the ICU due to complications;
open-label, randomized
1 center, China
Time to clinical improvement was defined as the time from randomization to an improvement of two points (from the status at randomization) on a seven category ordinal scale or live discharge from the hospital, whichever came first.
favipiravir (n=-9) vs. tocilizumab (n=-9)
randomized controlled trial some concerns about risk of bias
favipavir
Favipiravir: On the 1st day, 1600mg each time, twice a day; from the 2nd to the 7th day, 600mg each time, twice a day
tocilizumab
1 dose 4-8 mg/kg (max 400mg). 2nd dose within 24h if persistent fever
COVID 19 all comers
open label
10 centres, China
3 arms : Favipiravir Combined With Tocilizumab ; Favipiravir; Tocilizumab
favipiravir (n=120) vs. umifenovir (arbidol) (n=120)
randomized controlled trial some concerns about risk of bias
favipiravir
favipiravir tablets (1600 mg/time on the first day, twice a day; 600 mg/time from the second day to the end of the experiment, twice a day)
umifenovir
umifenovir (200 mg each time, 3 times a day, from the first day to the end of the trial)
COVID 19 all comers
double-blind
China, 3 hospitals
Clinical recovery was defined as continuous (>72 hours) recovery of body temperature, respiratory rate, oxygen saturation and cough relief after treatment
Some incorrectness in the paper (for example in the result table (table 2), it is not the rate ratio that is reported but the risk difference). Arise some concern about a selective reporting.
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