Zydus Cadila seeks Phase 3 clinical trials approval for its Covid-19 vaccine
The trial has been reviewed by an independent Data Safety Monitoring Board (DSMB), and reports have been submitted to Central Drugs Standard Control Organisation (CDSCO) regularly for the update on safety outcome.
Pharma major Zydus Cadila has approached the national drugs regulator, seeking approval to start phase 3 clinical trials of its vaccine candidate against the Coronavirus disease (Covid-19), that has proven to be safe for use.

In a statement issued on Thursday, the company informed that it had submitted the phase II/II trials data of its plasmid DNA vaccine candidate, ZyCov-D, to the Drugs Controller General of India (DCGI), Dr VG Somani.
The vaccine has been found to be safe and immunogenic, claims the company.
“…ZyCoV-D was found to be safe, well tolerated and immunogenic in the Phase I/II clinical trials. The company is now planning to initiate Phase III clinical trial in around 30,000 volunteers upon receiving necessary approvals,” the company said in a statement.
The Phase II study of the vaccine candidate had been conducted in over 1000 healthy adult volunteers as part of the adaptive Phase I/II dose escalation, multi-centric, randomized, double-blind placebo controlled study.
The trial has been reviewed by an independent Data Safety Monitoring Board (DSMB), and reports have been submitted to Central Drugs Standard Control Organisation (CDSCO) regularly for the update on safety outcome.
“After establishing safety in Phase I clinical trial, ZyCoV-D has now completed Phase II clinical trials and the vaccine has been found to be safe and immunogenic. We are optimistic of Phase III clinical trial outcomes as well and that we would be able to start the production of the Novel Vaccine on its successful completion. I would like to thank all the volunteers who have participated in the study so far and helped us in evaluating the vaccine to fight COVID-19,” said Pankaj R. Patel, chairman of the Zydus Group, in a statement.
With ZyCoV-D, the company has successfully established the DNA vaccine platform in the country. The platform is also known to show much improved vaccine stability thus requiring lower cold chain requirements. This makes the vaccine ideal for access in remotest regions of the country.
Administered through the intradermal route, it also allows for the ease of administration. Further, the platform also provides ease of manufacturing the vaccine with minimal biosafety requirements (BSL-1).
“…the platform can be rapidly used to modify the vaccine in couple of weeks in case the virus mutates to ensure that the vaccine still elicits protection. The plasmid DNA when introduced into the host cells would be translated into the viral protein and will elicit a strong immune response mediated by the cellular and humoral arms of the human immune system, which play a vital role in protection from disease as well as viral clearance,” the company statement further read.
In its Covid-19 vaccine development initiative, Zydus has been supported by national biopharma mission, biotechnology industry research assistance council, department of biotechnology, Indian council of medical research, and national institute of virology, Pune.
ABOUT THE AUTHORRhythma KaulRhythma Kaul is the national health editor of the Hindustan Times. She has been reporting on public health, medicine, and medical research, with a particular focus on how government decisions and health system reforms shape people’s lives. Rhythma has over 25 years of journalistic experience. She joined Hindustan Times in 2008, and has since covered everything from pandemics and infectious diseases to cutting‑edge medical research and climate‑related health challenges. Her stories routinely track the work of the Ministry of Health and Family Welfare, department of pharmaceuticals, and key national health programmes, making complex medical science and policy accessible to a wide audience. One of her prominent news breaks has been the 2012 Baby Falak case: A two-year-old brutally battered baby girl was admitted to AIIMS-Delhi with severe head injuries, multiple fractures, human bite marks, and burns. The police investigation revealed this to be a case of multi-state human-trafficking racket. She was profiled by The Wall Street Journal for breaking this story. Rhythma holds a Master’s degree from Jawaharlal Nehru University, Delhi. Prior to Hindustan Times, she worked with the India Today Group. Rhythma can be contacted at rhythma.kaul@hindustantimes.com. Her X handle is @RamblingBrook.Read More

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