By Shalini Bhardwaj
New Delhi [India], August 14 (ANI): The Indian Council of Medical Research (ICMR) and Panacea Biotec have announced the initiation of the first-ever Phase 3 clinical trial for a dengue vaccine in India. This landmark trial will evaluate the efficacy of India’s indigenous tetravalent dengue vaccine, DengiAll, developed by Panacea Biotec. The first participant in this trial was vaccinated on Wednesday at Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (PGIMS), Rohtak.
Commenting on this milestone, Union Minister of Health and Family Welfare, J P Nadda, said, “The initiation of this Phase 3 clinical trial for India’s first indigenous dengue vaccine marks a critical advancement in our fight against dengue. It reflects our commitment to protecting our citizens from this pervasive disease and underscores India’s capabilities in vaccine research and development. Through this collaboration between ICMR and Panacea Biotec, we are not only taking a step towards ensuring the health and well-being of our people but also reinforcing our vision of Atmanirbhar Bharat in the healthcare sector.”
Currently, there is no antiviral treatment or licensed vaccine against dengue in India. The development of an effective vaccine is complex due to the need to achieve good efficacy for all four serotypes. In India, all four serotypes of Dengue virus are known to circulate or co-circulate in many regions.
The tetravalent dengue vaccine strain (TV003/TV005), originally developed by the National Institutes of Health (NIH), USA, has shown promising results in preclinical and clinical trials worldwide. Panacea Biotec, one of three Indian companies to receive the strain, is at the most advanced stage of development. The company has worked extensively on these strains to develop a full-fledged vaccine formulation and holds a process patent for this work. Phase 1 and 2 clinical trials of the Indian vaccine formulation were completed in 2018-19, yielding promising results.
In collaboration with ICMR, Panacea Biotec will conduct the Phase 3 clinical trial across 19 sites in 18 States and Union Territories of India, involving more than 10,335 healthy adult participants. The trial, primarily funded by ICMR with partial support from Panacea Biotec, is set to follow up with participants for two years. This initiative represents a significant step towards developing an indigenous vaccine for one of India’s most pressing public health challenges and exemplifies the nation’s commitment to Atmanirbhar Bharat.
Dengue is a major public health concern in India, ranking among the top 30 countries with the highest incidence of the disease. The global incidence of dengue has been steadily increasing over the past two decades, with more than 129 countries reporting dengue viral disease by the end of 2023, according to the World Health Organization (WHO). In India, approximately 75-80 per cent of infections are asymptomatic, yet these individuals can still transmit the infection through the bite of Aedes mosquitoes. Among the 20-25 per cent of cases where symptoms are clinically apparent, children are at a significantly higher risk of hospitalization and mortality. In adults, the disease can escalate into severe conditions like dengue hemorrhagic fever and dengue shock syndrome. The dengue virus has four serotypes, 1-4, with low cross-protection against each other, meaning individuals can experience repeated infections. (ANI)
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