Ensitrelvir for COVID-19: real-time analysis of all 1 studies

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Ensitrelvir COVID-19 studies. Recent:

Mukae. Submit updates/corrections.

Ensitrelvir All

May 17

Early

Mukae et al., medRxiv, doi:10.1101/2022.05.17.22275027 (Preprint)

viral load, ↓45.2%, p=0.002

A Randomized Phase 2/3 Study of Ensitrelvir, a Novel Oral SARS-CoV-2 3C-like Protease Inhibitor, in Japanese Patients With Mild-to-Moderate COVID-19 or Asymptomatic SARS-CoV-2 Infection: Results of the Phase 2a Part

Details RCT 69 patients in in Japan, showing faster viral clearance with ensitrelvir. 5-day ensitrelvir (375mg on day 1 followed by 125 mg daily or 750mg on day 1 followed by 250mg daily).

RCT 69 patients in in Japan, showing faster viral clearance with ensitrelvir. 5-day ensitrelvir (375mg on day 1 followed by 125 mg daily or 750mg on day 1 followed by 250mg daily).

relative change in viral titer, 45.2% better, RR 0.55, p = 0.002, treatment mean 2.81 (±1.21) n=14, control mean 1.54 (±0.74) n=14, day 4, 250mg, primary outcome.

relative change in viral titer, 36.4% better, RR 0.64, p = 0.048, treatment mean 2.42 (±1.42) n=15, control mean 1.54 (±0.74) n=14, day 4, 125mg, primary outcome.

time to viral-, 44.8% lower, relative time 0.55, p = 0.02, treatment 15, control 14, 125mg.

time to viral-, 43.6% lower, relative time 0.56, p = 0.02, treatment 13, control 14, 250mg.

risk of no viral clearance, 54.2% lower, RR 0.46, p = 0.59, treatment 1 of 12 (8.3%), control 2 of 11 (18.2%), NNT 10, day 14, 250mg, Figure S1.

risk of no viral clearance, 10.0% higher, RR 1.10, p = 1.00, treatment 3 of 15 (20.0%), control 2 of 11 (18.2%), day 14, 125mg, Figure S1.

risk of no viral clearance, 80.0% lower, RR 0.20, p = 0.48, treatment 0 of 13 (0.0%), control 2 of 13 (15.4%), NNT 6.5, relative risk is not 0 because of continuity correction due to zero events, day 9, 250mg, Figure S1.

risk of no viral clearance, 53.6% lower, RR 0.46, p = 0.60, treatment 1 of 14 (7.1%), control 2 of 13 (15.4%), NNT 12, day 9, 125mg, Figure S1.

risk of no viral clearance, 53.6% lower, RR 0.46, p = 0.38, treatment 2 of 14 (14.3%), control 4 of 13 (30.8%), NNT 6.1, day 6, 250mg, Figure S1.

risk of no viral clearance, 89.6% lower, RR 0.10, p = 0.03, treatment 0 of 15 (0.0%), control 4 of 13 (30.8%), NNT 3.2, relative risk is not 0 because of continuity correction due to zero events, day 6, 125mg, Figure S1.

risk of no viral clearance, 80.0% lower, RR 0.20, p = 0.006, treatment 2 of 14 (14.3%), control 10 of 14 (71.4%), NNT 1.8, day 4, 250mg, Figure S1.

risk of no viral clearance, 62.7% lower, RR 0.37, p = 0.03, treatment 4 of 15 (26.7%), control 10 of 14 (71.4%), NNT 2.2, day 4, 125mg, Figure S1.

risk of no viral clearance, 9.1% lower, RR 0.91, p = 1.00, treatment 10 of 14 (71.4%), control 11 of 14 (78.6%), NNT 14, day 2, 250mg, Figure S1.

risk of no viral clearance, 10.3% higher, RR 1.10, p = 0.65, treatment 13 of 15 (86.7%), control 11 of 14 (78.6%), day 2, 125mg, Figure S1.

Mukae et al., 5/17/2022, Double Blind Randomized Controlled Trial, placebo-controlled, Japan, Asia, preprint, 13 authors, study period 28 September, 2021 - 1 January, 2022, trial jRCT2031210350.

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