Ocugen’s COVID-19 Vaccine Co-Development Partner, Bharat Biotech, Shares Phase 3 Results Demonstrating 77.8% Protection against Overall Disease
- Category: Vaccines
- Published on Sunday, 04 July 2021 13:55
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- Efficacy analysis demonstrates COVAXIN™ to be 93.4% protective against severe symptomatic COVID-19
- Efficacy data demonstrates 65.2% protection against the SARS-CoV-2, B.1.617.2 Delta variant
- Adverse events reported were similar to placebo, with 12.4% of subjects experiencing commonly known side effects and less than 0.5% of subjects feeling serious adverse events
MALVERN, PA, USA, and HYDERABAD, India I July 02, 2021 IOcugen, Inc. (NASDAQ: OCGN), a biopharmaceutical company focused on discovering, developing, and commercializing gene therapies to cure blindness diseases and developing a vaccine to save lives from COVID-19, today announced that its co-development partner, Bharat Biotech, shared positive results of its Phase 3 study of COVAXIN™, a whole virion inactivated COVID-19 vaccine candidate. COVAXIN™ demonstrated a vaccine efficacy in mild, moderate, and severe COVID-19 disease of 77.8% with efficacy against severe COVID-19 disease alone of 93.4%.
“As we brace ourselves for the potential next wave of COVID-19 outbreaks from the Delta variant, reporting of the final efficacy analysis from this Phase 3 study comes at a crucial time. We expect these efficacy and safety outcomes, along with demonstrated efficacy against emerging variants of concern, will support our initiatives to bring COVAXIN™ to the US and Canadian markets,” said Dr. Shankar Musunuri, Chairman of the Board, Chief Executive Officer and Co-Founder of Ocugen.
“With the Delta variant becoming a dominant strain of COVID-19 in the United States, we believe that the Phase 3 efficacy results reported by Bharat Biotech demonstrate that COVAXIN™ has the potential to become an important option to expand protection against this emerging variant. Combining these data with the only Delta-variant results from a controlled Phase 3 clinical trial, evidence continues to support a favorable benefit-risk profile for COVAXIN™,” said Dr. Bruce Forrest, Acting Chief Medical Officer and a member of the vaccine scientific advisory board of Ocugen.
Phase 3 Results as Reported by Bharat Biotech
Bharat Biotech’s Phase 3 clinical trial enrolled 25,798 participants across 25 sites and between 18-98 years of age in India, including 2,750 over the age of 60 and 7,065 with comorbidities. The primary endpoint of the Phase 3 clinical trial is based on the first occurrence of PCR-confirmed symptomatic (mild, moderate, or severe) COVID-19 with onset at least 14 days after the second study vaccination in serologically negative (to SARS-CoV-2) adult participants at baseline.
“The safety and efficacy readouts from Phase III clinical trials present a comprehensive data package for COVAXIN™. This has been a great journey of science leading to translational product development to combat this deadly pandemic,” added Dr. Krishna Ella, Chairman & Managing Director, Bharat Biotech. “We continue our efforts towards additional studies on variants of concern. Our commitment to data transparency has been sustained with 10 publications within the past year, and we will share our findings with regulators worldwide.”
COVAXIN™ demonstrated overall efficacy of 77.8% (95% CI; 65.2-86.4), achieving its primary endpoint. One hundred and thirty positive COVID-19 cases were observed: 24 in the vaccine group and 106 in the placebo group. Sixteen severe cases were observed: one in the vaccine group and 15 in the placebo group, achieving an efficacy of 93.4% (95% CI; 57.1-99.8) with respect to severe COVID-19 infection.
In the Phase 3 trial conducted by Bharat Biotech, subjects vaccinated with COVAXIN™ achieved greater protection against emerging B.1.617.2 (delta) and B.1.351 (beta) variants than those who had previous natural infections. Results showed an efficacy rate of 65.2% (95% CI; 33.1-83.0).
Adverse events reported were low, with 12.4% of subjects experiencing commonly known side effects and less than 0.5% of subjects feeling serious adverse events, side effects that keep many from considering taking current vaccines. Both adverse events and severe adverse events reported in the vaccine group were reported at similar rates to the placebo group.
Ocugen recently announced that it will pursue submission of a Biologics License Application (BLA) for its COVID-19 vaccine candidate, COVAXIN™ in the United States and has initiated discussions with Health Canada for regulatory approval.
COVAXIN™, India's COVID-19 vaccine by Bharat Biotech, is developed in collaboration with the Indian Council of Medical Research (ICMR) - National Institute of Virology (NIV). COVAXIN™ is a highly purified and inactivated vaccine that is manufactured using a vero cell manufacturing platform with an excellent safety track record of more than 300 million doses supplied. It is a two-dose vaccine given four weeks apart.
In addition to generating strong immune response against multiple antigens, COVAXIN™ has been shown to generate memory T cell responses, for its multiple epitopes, indicating longevity and a rapid antibody response to future infections. With published data demonstrating a safety profile superior to available data for several other vaccines, COVAXIN™ is packaged in multi-dose vials that can be stored at 2-8⁰C.
Based on the more than 30 million doses supplied in India and other countries, COVAXIN™ has an excellent safety record. COVAXIN™ is currently being administered under emergency use authorizations in 13 countries, and applications for emergency use authorization are pending in more than 60 additional countries.
About Ocugen, Inc.
Ocugen, Inc. is a biopharmaceutical company focused on discovering, developing, and commercializing gene therapies to cure blindness diseases and developing a vaccine to save lives from COVID-19. Our breakthrough modifier gene therapy platform has the potential to treat multiple retinal diseases with one drug – “one to many” and our novel biologic product candidate aims to offer better therapy to patients with underserved diseases such as wet age-related macular degeneration, diabetic macular edema, and diabetic retinopathy. We are co-developing Bharat Biotech’s COVAXIN™ vaccine candidate for COVID-19 in the U.S. and Canadian markets. For more information, please visit www.ocugen.com.
About Bharat Biotech
Bharat Biotech has established an excellent track record of innovation with more than 145 global patents, a wide product portfolio of more than 16 vaccines, 4 bio-therapeutics, registrations in more than 123 countries, and the World Health Organization (WHO) Pre-qualifications. Located in Genome Valley in Hyderabad, India, a hub for the global biotech industry, Bharat Biotech has built a world-class vaccine & bio-therapeutics, research & product development, Bio-Safety Level 3 manufacturing, and vaccine supply and distribution.
Having delivered more than 4 billion doses of vaccines worldwide, Bharat Biotech continues to lead innovation and has developed vaccines for influenza H1N1, Rotavirus, Japanese Encephalitis, Rabies, Chikungunya, Zika, and the world’s first tetanus-toxoid conjugated vaccine for Typhoid. Bharat’s commitment to global social innovation programs and public-private partnerships resulted in introducing path-breaking WHO pre-qualified vaccines BIOPOLIO®, ROTAVAC®, and Typbar TCV® combatting polio, rotavirus, typhoid infections, respectively. The acquisition of the rabies vaccine facility, Chiron Behring, from GlaxoSmithKline (GSK) has positioned Bharat Biotech as the world's largest rabies vaccine manufacturer. To learn more about Bharat Biotech, visit www.bharatbiotech.com.