RSV Vaccines Need Multiple Animal Models Before Infant Testing, Panel Says

US FDA's advisors want data from three animal models – not just the cotton rats that Janssen was hoping for – before candidate vaccines are tested in healthy infants.

Despite a suggestion from Janssen Vaccines & Prevention BV that preclinical data from cotton rat models should be sufficient to justify initiating clinical studies of respiratory syncytial virus (RSV) vaccines in healthy infants, the US FDA's Vaccines and Related Biological Products Advisory Committee was adamant that sponsors conduct studies in three different animal models before proceeding.

Panelists agreed at a May 17 meeting that the development RSV vaccine is an essential public health need for children younger than five years of age. They nevertheless called for...

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