Philippines cancels US-backed COVID-19 vaccine trial for infants after protests

US‑backed officials cancelled a planned trial of a COVID‑19 vaccine in infants last week after a wave of protests, and police seized the doses that had been earmarked for the study. The trial, which would have enrolled babies under six months in the Philippines, was organized by a U.S. research consortium and the Philippine Department of Health. It was called off just days before the first injections were to be given.

The controversy grew out of a broader push by U.S. health agencies to test COVID‑19 shots in the youngest age groups. Data on safety and efficacy for infants are still limited, and manufacturers have said they need trial results before seeking approval. In the Philippines, a country still grappling with low vaccination coverage and high rates of respiratory illness in children, the plan raised ethical questions. Critics argued that the study would expose vulnerable infants to an experimental product without sufficient safeguards, and that the consent process was unclear.

Parents, pediatricians, and NGOs rallied in Manila and on social media, demanding a halt to the trial. International bodies, including the World Health Organization and UNICEF, issued statements urging caution and a transparent review. The Department of Health said it would respect the concerns and that the seized vials would be stored securely. U.S. officials expressed disappointment but pledged to work with Philippine authorities on alternative ways to protect infants, such as maternal vaccination and broader adult coverage.

The cancellation delays the collection of data that could inform global vaccine policy for babies. Health officials in the Philippines said they will explore other research avenues that meet ethical standards and involve community input. The U.S. research team announced it will re‑evaluate its protocol and seek new partnerships. Observers note that the episode underscores the need for clear communication and local involvement when testing new medical products on children.