India’s Vaccine wait ends against COVID-19 as Serum Institute, Bharat Biotech get restricted emergency approval

The Drug Controller General of India (DCGI) has approved Serum Institute, Bharat Biotech’s vaccines for emergency use.

The Subject Expert Committee of Central Drugs Standard Control Organisation (CDSCO) met on 1st and 2nd January, 2021 and made recommendations in respect of proposal for Restricted Emergency Approval of COVID-19 virus vaccine of Serum Institute of India and Bharat Biotech as well as Phase III clinical trial of Cadila Healthcare Ltd.

The Subject Expert Committee consists of domain knowledge experts from the fields of pulmonology, immunology, microbiology, pharmacology, paediatrics, internal medicine, etc.

Serum Institute of India, Pune has presented a Recombinant Chimpanzee Adenovirus vector vaccine (Covishield) encoding the SARS-CoV-2 Spike (S) glycoprotein with technology transfer from AstraZeneca/Oxford University. The firm submitted safety, immunogenicity and efficacy data generated on 23,745 participants aged ≥ 18 years or older from overseas clinical studies. The overall vaccine efficacy was found to be 70.42%. Further, Serum was granted permission to conduct Phase-II/III clinical trial on 1600 participants within the country. The firm also submitted the interim safety and immunogenicity data generated from this trial and the data was found comparable with the data from the overseas clinical studies. After detailed deliberations the Subject Expert Committee has recommended for the grant of permission for restricted use in emergency situation subject to certain regulatory conditions. The clinical trial ongoing within the country by the firm will continue, according to the Ministry of Health.

Bharat Biotech has developed a Whole Virion Inactivated Coronavirus Vaccine (Covaxin) in collaboration with ICMR and NIV (Pune), from where they received the virus seed strains. This vaccine is developed on the Vero cell platform, which has a well established track record of safety and efficacy in the country & globally, the statement said.

The SEC has reviewed the data on safety and immunogenicity of the vaccine and recommended for grant of permission for restricted use in emergency situation in public interest as an abundant precaution, in clinical trial mode, to have more options for vaccinations, especially in case of infection by mutant strains. The clinical trial ongoing within the country by the firm will continue.

Cadila Healthcare Ltd., has developed a Novel Corona Virus-2019-nCov-Vaccine using DNA platform technology. The firm initiated Phase-I/II clinical trial in India in more than 1000 participants which is ongoing. The interim data suggests that the vaccine is safe and immunogenic with three doses when administered intradermally. Accordingly, the firm has sought permission to conduct Phase-III clinical trial in 26000 Indian participants, which has been recommended by the Subject Expert Committee, the statement said.

Serum and Bharat Biotech vaccines have to be administered in two doses. All the three vaccines have to be stored at 2-8° C.

After adequate examination, CDSCO has decided to accept the recommendations of the Expert Committee and accordingly, vaccines of Serum and Bharat Biotech are being approved for restricted use in emergency situation and permission is being granted to Cadila Healthcare for conduct of the Phase III clinical trial.