Inovio Begins Rolling BLA for Rare Throat Disorder
Inovio Pharmaceuticals says it has started a rolling BLA submission for INO-3107, an experimental DNA medicine for recurrent respiratory papillomatosis (RRP), with the goal of securing FDA approval by the end of the year. The company expects to complete the filing in the coming months and plans to request a priority review, which could shorten the review period.
RRP is a rare, often debilitating condition caused primarily by HPV-6 and HPV-11 that leads to wart-like growths in the respiratory tract, according to the company, adding that standard treatment involves repeated surgeries to remove papillomas, which frequently return and carry risks of vocal cord damage and airway obstruction.
INO-3107 is designed to train the immune system to target HPV-infected cells, Inovio says. In a Phase 1/2 study, 72% of patients experienced a 50–100% reduction in the number of surgeries in the first year after treatment, it says, adding that follow-up data from a retrospective study showed that 86% of patients maintained that level of benefit in the second year, with half requiring no surgeries at all. The treatment was generally well tolerated, with most side effects limited to injection site pain and fatigue.
FDA has already granted INO-3107 both orphan drug and breakthrough therapy designations, and it has indicated accelerated approval is an option based on the completed mid-stage trial data, according to the company.