India Approves First Dengue Vaccine Qdenga for Public Protection

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The Central Drugs Standard Control Organisation (CDSCO) has officially granted marketing authorization for Qdenga, making it India's first approved dengue vaccine.
This regulatory milestone arrives as India continues to experience one of the largest dengue burdens globally.
Reported dengue infections in the country have climbed nearly 11-fold over the past two decades.

Unplanned urban growth and population density have significantly expanded mosquito breeding grounds in cities.
Shifting climate patterns help mosquitoes survive longer and spread infections to new geographic areas.
Developing effective dengue protection is complex because the disease is caused by 4 distinct virus serotypes.
Earlier dengue vaccines required mandatory pre-vaccination blood testing, which complicated large-scale rollout efforts.

Qdenga (also designated as TAK-003) is a recombinant, live-attenuated tetravalent vaccine created by Takeda GmbH in Germany.
It uses a dengue virus type-2 backbone inserted with surface protein genes from the other three strains to shield against DENV-1, DENV-2, DENV-3, and DENV-4.
The vaccine will be imported and distributed locally across India by M/s Takeda Biopharmaceuticals India Pvt. Ltd.
Health authorities have approved Qdenga for individuals aged 4 to 60 years, regardless of previous dengue infection history.
Unlike earlier formulations, this vaccine requires no prior antibody screening, simplifying clinical administration.
The immunization regimen consists of two doses of 0.5 ml injected subcutaneously 3 months apart.
It holds prequalification from the World Health Organization (WHO) and approval in over 40 countries, including the European Union and the UK.
Over 24 million to 32 million doses of Qdenga have already been administered across global jurisdictions.
A successful Phase III trial in India confirmed high immunogenicity and safety across diverse local populations.

Dengue is a viral tropical disease caused by the dengue virus, which belongs to the genus Flavivirus.
The infection spreads to humans through the bites of infected female mosquitoes, primarily Aedes aegypti.
The same Aedes mosquito vectors are also responsible for transmitting chikungunya, yellow fever, and Zika.
Typical symptoms include high fever, severe headache, pain behind the eyes, and severe muscle, joint, and bone pain.
According to the World Health Organization (WHO), an estimated 39 crore infections occur globally each year, with 9.6 crore manifesting clinical symptoms.

The CDSCO serves as India's national regulatory authority for pharmaceuticals, medical devices, and cosmetics under the Ministry of Health and Family Welfare.
Headquartered in New Delhi, the agency operates under the Directorate General of Health Services.
It derives statutory powers from the Drugs and Cosmetics Act, 1940 and the Drugs Rules, 1945.
The regulator evaluates the quality, safety, and efficacy of new medical products before granting market access.
It oversees clinical trial safety, regulates foreign drug imports, and coordinates with state authorities to curb substandard medicines.