Greenwich Lifesciences IncEuropean Medicines Agency approved combining both HLA populations in Phase III trial, doubling enrollment rate and expanding market potential.

Greenwich LifeSciences announced that the European Medicines Agency has approved combining both HLA-A*02 and non-HLA-A*02 patients in the randomized arms of its Phase III FLAMINGO-01 trial for GLSI-100, an immunotherapy to prevent breast cancer recurrences. This decision aligns European sites with US sites, where the FDA previously allowed the combination, effectively more than doubling the enrollment rate of the pivotal arm and making non-HLA-A*02 patients, who represent about 55% of the population, eligible for enrollment. All 170 to 180 clinical sites in the US and Europe are now operating under the same protocol and could continue enrolling up to the first interim analysis, with data analyzable by individual HLA types. The company also reported that the 250-patient non-HLA-A*02 open-label arm is fully enrolled, and a preliminary analysis shows an approximately 70 to 80 percent reduction in recurrence rate after the primary immunization series, trending similarly to the Phase IIb trial where HLA-A*02 patients saw up to an 80 percent reduction. Greenwich LifeSciences plans to pursue approval for both patient groups using a combined analysis, potentially doubling the market for GP2.
Greenwich Lifesciences IncEuropean Medicines Agency approved combining both HLA populations in Phase III trial, doubling enrollment rate and expanding market potential.