On November 3, 2025 Galapagos NV (Euronext & NASDAQ: GLPG) reported that it will present new and updated data for CAR T-cell therapy candidate, GLPG51011, at the 67th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting in Orlando, FL, December 6-9, 2025.
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
Two abstracts, including one oral presentation, will feature new and updated Phase 2 data in relapsed/refractory mantle cell lymphoma (R/R MCL) and R/R large B-cell lymphoma (R/R DLBCL) for GLPG5101, Galapagos’ proprietary cell therapy candidate in R/R non-Hodgkin lymphoma (NHL). Galapagos will also host a company showcase, titled: Fast, Fresh, Fit: Unlocking the Potential of Cell Therapy through a Transformative, Scalable, and Accessible Approach to Impact More Patients Globally.
"We are excited to present promising new clinical data for our CD19 CAR T-cell therapy candidate in R/R mantle cell lymphoma and diffuse large B-cell lymphoma, two indications with high unmet medical need," said Omotayo Fasan, MBBS, MRCP, Clinical Development Program Head, Oncology. "The data continue to support the hypothesis that the rapid delivery of fresh, fit, early-memory enriched CAR-T cells could improve outcomes for patients."
The data to be presented are summarized below:
The oral presentation on GLPG5101, Galapagos’ CD19 CAR-T candidate, will feature new and updated Phase 2 data in patients with high-risk R/R MCL. The results demonstrate high rates of complete response and minimal residual disease negativity, and durable responses, with low rates of severe grade toxicities (cut-off date: September 2, 2025).
The poster presentation on GLPG5101, Galapagos’ CD19 CAR-T candidate, will feature new and updated Phase 2 data in R/R DLBCL. The data demonstrate high complete response rates, a low dropout rate, and mainly low-grade toxicities in patients with R/R DLBCL (cut-off date: September 2, 2025).
The oral and poster presentations demonstrate the feasibility of the manufacturing platform, enabling rapid delivery of fresh, early-memory enriched CAR T-cell products with a median vein-to-vein time of seven days. The data show robust in-vivo expansion, durable persistence, high complete response rates, and a low incidence of high-grade toxicities, supporting outpatient administration.
The dates and times for the accepted abstracts are as follows:
Abstract title Authors (Presenter) Presentation date/time
Galapagos-driven original abstracts
High complete response rates and minimal residual disease (MRD) negativity, with durable responses, in high-risk mantle cell lymphoma (MCL) with GLPG5101, a fresh, early memory-enriched CAR T-cell therapy with a 7-day vein-to-vein time: Results from the ATALANTA-1 MCL cohort Marie José Kersten, Joost S.P. Vermaat, Pim G.N.J. Mutsaers, Maria T. Kuipers, Evelyne Willems, Sébastien Anguille, Tim J.A. Dekker, Caron Jacobson, Michael R. Bishop, Peter Vandenberghe, Guillaume Dachy, Andreas Klein, Jon Arnason, Stavros Milatos, Chiara Lobetti-Bodoni, Eva Santermans, Sandra Blum, Kirsten Van Hoorde, Maike Spoon, Omotayo Fasan, and Martin Dreyling Oral presentation number: 662
Date: Sunday, December 7, 2025
Time: 4:45 pm – 5:00 pm EST (session 4:30 – 06:00 EST)
Session: 623. Mantle Cell, Follicular, Waldenstrom’s, and Other Indolent B Cell Lymphomas: Clinical and Epidemiological – Novel Treatments for and Insights into Mantle Cell Lymphoma
Location: OCCC – Tangerine Ballroom F2
High complete response rates, low dropout rate, and low-grade toxicities in patients with relapsed/refractory diffuse large B-cell lymphoma (DLBCL) receiving GLPG5101, a fresh, early memory-enriched CAR T-cell therapy with a 7-day vein-to-vein time: Results from the ATALANTA-1 DLBCL cohort Joost S.P. Vermaat, Pim G.N.J. Mutsaers, Sébastien Anguille, Maria T. Kuipers, Evelyne Willems, Tim J.A. Dekker, Peter Vandenberghe, Guillaume Dachy, Caron Jacobson, Michael R. Bishop, Martin Dreyling, Andreas Klein, Jon Arnason, Stavros Milatos, Harini Kothari, Daniela Buglio, Sandra Blum, Leonardo Chicaybam, Eva Santermans, Omotayo Fasan, and Marie José Kersten Poster presentation number: 5940
Date: Monday, December 8, 2025
Time: 06:00 pm – 08:00 pm EST
Session: 704. Cellular Immunotherapies: Early Phase Clinical Trials and Toxicities: Poster III
Location: OCCC – West Halls B3–B4
Galapagos company showcase
Omotayo Fasan – VP, Clinical Development Program Head, Oncology Date: Saturday, December 6, 2025
Time: 1:30 pm – 1:45 pm EST
Location: Room W208AB – Level 2 – Orange County Convention Center (West Building)
About GLPG5101 and ATALANTA-1 (EudraCT 2021-003272-13; NCT 06561425)
GLPG5101 is a second generation anti-CD19/4-1BB CAR-T product candidate, administered as a single fixed intravenous dose. The safety, efficacy and feasibility of decentralized manufactured GLPG5101 are currently being evaluated in the ATALANTA-1 Phase 1/2 study in eight hematological malignancies with high unmet need. The primary objective of the Phase 1 part of the study is to evaluate safety and to determine the recommended dose for the Phase 2 part of the study. Secondary objectives include assessment of efficacy and feasibility of decentralized manufacturing of GLPG5101. The dose levels that were evaluated in Phase 1 are 50×106 (DL1), 110×106 (DL2) and 250×106 (DL3) CAR+ viable T-cells. The primary objective of the Phase 2 part of the study is to evaluate the Objective Response Rate (ORR) while the secondary objectives include Complete Response Rate (CRR), duration of response, progression free survival, overall survival, safety, pharmacokinetic profile, and the feasibility of decentralized manufacturing. Each enrolled patient will be followed for 24 months. The ATALANTA-1 study is currently enrolling patients in the U.S. and Europe.
(Press release, Galapagos, NOV 3, 2025, View Source [SID1234659255])