Pfizer’s antiviral oral pill ‘Paxlovid’ 89 percent effective against Covid 19: Study

New Delhi, Nov 5: The antiviral oral pill ‘Paxlovid’, formulated by Pfizer Inc is 89 percent effective to fight high risk Covid-19 said a recent  study conducted by an independent monitoring committee on Friday. Chairman and Chief Executive Officer Albert Bourla, Pfizer Inc. said, “Paxlovid that contains Ritonavir compounds, is a real game-changer in the global efforts to halt the devastation of this pandemic. The recent study  suggests that our oral antiviral candidate, if approved or authorized by regulatory authorities, has the potential to save patients’ lives, reduce the severity of COVID-19 infections, and eliminate up to nine out of ten hospitalizations.” “Given the continued global impact of COVID-19, we have remained laser-focused on the science and fulfilling our responsibility to help healthcare systems and institutions around the world while ensuring equitable and broad access to people everywhere.” Bourla said, its investigational novel COVID-19 oral antiviral candidate, PAXLOVID, significantly reduced hospitalization and death, based on an interim analysis of the Phase 2 Evaluation of Protease Inhibition for Covid-19 in High-Risk Patients(EPIC-HR) randomized, double-blind study of non-hospitalized adult patients with Covid-19, who are at high risk of progressing to severe illness. The scheduled interim analysis showed an 89% reduction in risk of COVID-19-related hospitalization or death from any cause compared to Placebo in patients treated within three days of symptom onset (primary endpoint); 0.8% of patients who received Paxlovid were hospitalized through Day 28 following randomization (3/389 hospitalized with no deaths), compared to 7.0% of patients who received Placebo and were hospitalized or died (27/385 hospitalized with 7 subsequent deaths). The statistical significance of these results was high. Similar reductions in COVID-19-related hospitalization or death were observed in patients treated within five days of symptom onset; 1.0% of patients who received Paxlovid were hospitalized through Day 28 following randomization i.e 6/607 hospitalized, with no deaths, compared to 6.7% of patients who received the Placebo (41/612 hospitalized with 10 subsequent deaths), with high statistical significance (p<0.0001).  In the overall study population through day 28, no deaths were reported in patients who received PAXLOVID™ as compared to 10 (1.6%) deaths in patients who received the Placebo oral tablets. At the recommendation of an independent Data Monitoring Committee and in consultation with the U.S. Food and Drug Administration (FDA), Pfizer will cease further enrollment into the study due to the overwhelming efficacy demonstrated in these results and plans to submit the data as part of its ongoing rolling submission to the U.S. FDA for Emergency Use Authorization (EUA) as soon as possible. If approved by the appropriate authorities, Paxlovid would be the first oral antiviral of its kind, a specifically designed SARS-CoV-2-3CL protease inhibitor. Upon successful completion of the remainder of the EPIC clinical development program and subject to approval or authorization, it could be prescribed more broadly as an at-home treatment to help reduce illness severity, hospitalizations, and deaths, as well as reduce the probability of infection following exposure, among adults. It has demonstrated potent antiviral in vitro activity against circulating variants of concern, as well as other known coronaviruses, suggesting its potential as a therapeutic for multiple types of coronavirus infections, Bourla added.