India’s drug regulator approved the Covid-19 vaccines manufactured by Serum Institute of India Ltd. and Bharat Biotech International Ltd. for restricted use in emergency situation.
The approval by the DCGI was given on the basis of recommendations submitted by a Covid-19 subject expert committee of the Central Drugs Standard Control Organisation.
Drugs Controller General of India’s VG Somani said the overall efficacy of the AstraZeneca-Oxford University shot being produced locally by the Serum Institute as ‘Covishield’ was found to be 70.42%. In a statement to the media, Somani said that the interim safety, immunogencity data of Serum’s vaccine was found comparable with overseas clinical studies.
Adar Poonawalla, chief executive officer of Serum Institute, tweeted following the approval saying that the vaccine is ready to roll out in the coming weeks.
On Bharat Biotech’s ‘Covaxin’, the DCGI said the vaccine is “safe and provides a robust immune response.” The approval for this vaccine has been given even as, Somani said, “The clinical trial ongoing within the country by the firm will continue.” Unlike his comment statement on the Serum vaccine, Somani did not offer a data point on the efficacy of ‘Covaxin’.
Ahead of this announcement, the ‘All India Drug Action Network’, a group of non-government organisations, had urged the DCGI on Saturday to reconsider the recommendations of the CDSCO’s Subject Expert Committee to grant restricted emergency use to ‘Covaxin’. “Disturbingly, it appears that no efficacy data for the vaccine candidate were submitted from the Phase 3 trials that are ongoing and being conducted by Bharat Biotech and ICMR,” AIDAN said in a statement.
On its part, Bharat Biotech on Sunday said it has generated excellent safety data with robust immune responses to multiple viral proteins that persist and their goal is to provide global access to populations that need it the most.
There has been concern on the process, from other quarters as well.
“I thought I knew something about the process of licensure of vaccines, but clearly I do not. I do not understand what ‘the grant of permission in emergency situation in public interest as an abundant permission, in clinical trial mode’, means—either you are doing a clinical trial or you are not. As far as I am aware, Covaxin has no clinical efficacy data whatsoever at this time, so I fail to see how the DCGI can consider this an efficacious vaccine,” said Dr. Gagandeep Kang, professor, the Wellcome Trust Research Laboratory, division of gastrointestinal sciences, Christian Medical College, Vellore, told BloombergQuint.
According to Murali Neelakantan, a healthcare laws expert, the issue with using terms like emergency use authorisation and restricted emergency use, that are alien to Indian regulations, is that it causes confusion among doctors and patients about the basis for the approval and the limitations of the data used to grant approvals.
“This lack of transparency could lead to a lack of trust in the vaccine. Contrast this with the U.S. FDA which live streamed the whole regulatory review process and issued a detailed memo on the vaccine, with all relevant data, including restrictions,” said Neelakantan. “The credibility of the regulator is at stake and this is especially telling due to the history of the regulator acting contrary to the regulations in the past. India has had a troubling history of new drug approvals.”
Cadila Gets DCGI Nod To Initiate Phase-3 Trials For Vaccine
Drug firm Zydus Cadila on Sunday said it has received the Drugs Controller General of India’s approval to initiate phase-3 clinical trials of its Covid-19 vaccine ZyCoV-D.
The company will now be initiating phase-3 clinical trial in around 30,000 volunteers, Zydus Cadila said in a statement. ZyCoV-D was found to be safe, well-tolerated and immunogenic in phase-1 and 2 clinical trials, it said.
The phase-2 study of ZyCoV-D had been conducted in over 1,000 healthy adult volunteers as part of the adaptive Phase I/II dose-escalation, multi-centric, randomised, double-blind placebo-controlled study, the drug firm said.
“We are reaching a critical milestone in our vaccine development programme and towards our goal of helping people fight the pandemic with an indigenously discovered, safe and efficacious vaccine,” Zydus Group Chairman Pankaj R Patel said.
The launch of the phase-3 trial will determine the efficacy of the company’s vaccine in preventing Covid-19, which continues to pose a major threat world over, he said.
(Source: PTI)
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