Galapagos announces start of PAPILIO-1 Phase 1/2 multiple myeloma study of point-of-care manufactured BCMA CAR-T candidate, GLPG5301

Mechelen, Belgium; 19 December 2023, 22:01 CET; Galapagos NV (Euronext & NASDAQ: GLPG) today announced that the first patient has been dosed in PAPILIO-1, the Phase 1/2 study to evaluate the safety, efficacy, and feasibility of our seven-day vein-to-vein, point-of-care manufactured BCMA CAR-T candidate, GLPG5301, in adult patients with relapsed/refractory multiple myeloma (rrMM). This is Galapagos’ third oncology CAR-T program in clinical development.

GLPG5301 is an autologous, second-generation/4-1BB B-cell maturation antigen (BCMA)-directed CAR-T product candidate, administered as an intravenous infusion of a fresh product in a single fixed dose, at point-of-care.

“Patients living with relapsed/refractory multiple myeloma have a very poor prognosis and a significant high unmet medical need for novel treatment options. CAR-T therapy is one such option. By combining innovative science with breakthrough point-of-care delivery of novel CAR-T therapies, we aim to enhance patient outcomes and improve their quality of life,” said Jeevan Shetty, Head of Clinical Development Oncology at Galapagos. “We are very pleased that the first patient with rrMM in PAPILIO-1 has been dosed with our BCMA CAR-T candidate, GLPG5301. This marks another milestone in the roll-out of our point-of-care network and the build-up of our CAR-T portfolio, which now consists of three ongoing clinical programs in severe hemato-oncology indications.”

About the PAPILIO-1 Phase 1/2 study (EU CT 2022-500782-27-00)
PAPILIO-1 is a Phase 1/2, open-label, multi-center study to evaluate the feasibility, safety, and efficacy of point-of-care manufactured GLPG5301, our BCMA CAR-T product candidate, in patients with relapsed/refractory multiple myeloma (rrMM) after ≥2 prior lines therapy. The primary objective of the Phase 1 part of the PAPILIO-1 study is to evaluate safety and determine the recommended dose for the Phase 2 part of the study. The primary objective of the Phase 2 part of the study is to evaluate the efficacy of GLPG5301, as measured by the objective response rate (ORR). Secondary objectives for both Phase 1 and Phase 2 include further assessment of the safety of GLPG5301, additional efficacy endpoints, including assessment of minimal residual disease (MRD), as well as the feasibility of point-of-care manufacture of GLPG5301 in rrMM patients. Each enrolled patient will be followed for 24 months.