Merck has initiated the MOBILIZE-1 Phase 3 clinical trial evaluating V181, a single-dose quadrivalent vaccine designed to prevent dengue disease caused by all four virus serotypes regardless of prior exposure.
The randomized, double-blind, placebo-controlled study aims to enroll approximately 12,000 healthy individuals aged 2 to 17 years across more than 30 trial sites in dengue-endemic areas of the Asia-Pacific region.
With approximately four billion people at risk globally and around 105 million dengue infections occurring annually, V181 represents a potential breakthrough in addressing one of the world's fastest-growing mosquito-borne diseases.
The trial marks the first Phase 3 study in Merck's clinical development program for V181, with recruitment beginning in Singapore and expansion planned across Indonesia, Malaysia, Philippines, Thailand, and Vietnam.