Celyad Oncology to Present Data From Phase 1 IMMUNICY-1 Trial of Non-Gene Edited Allogeneic CAR T Candidate CYAD-211 in Relapsed/Refractory Multiple Myeloma at the European Hematology Association Virtual Congress

Regulatory News:

Celyad Oncology SA (Euronext & Nasdaq: CYAD) (Brussels:CYAD) (Paris:CYAD) (NASDAQ:CYAD), a clinical-stage biotechnology company focused on the discovery and development of chimeric antigen receptor T-cell (CAR T) therapies for cancer, today announced that an abstract highlighting initial clinical data from the Phase 1 IMMUNICY-1 trial of CYAD-211 has been accepted for e-poster presentation at the upcoming European Hematology Association (EHA) Virtual Congress 2021

Filippo Petti, Chief Executive Officer at Celyad Oncology, commented, “We are very pleased with the initial results from the low dose cohort of our first shRNA-based allogeneic candidate, CYAD-211, which has showed preliminary signs of clinical activity, including a confirmed partial response, with no evidence of Graft-versus-Host-Disease. We are encouraged by the observed clinical activity at such a low dose level and the overall steady progress of the trial to date. Our team is intently focused on further assessing whether shRNA-mediated knockdown can generate safe, functional and clinically relevant allogeneic CAR T-cells for the treatment of cancer while offering an alternative technology platform with key advantages over gene-editing. We are excited for the opportunity to present the latest safety, clinical activity and cell kinetic data for the program next month at EHA and look forward to future updates for the program throughout 2021 as we move towards our goal of establishing proof-of-concept for this dynamic platform.”

CYAD-211 is an investigational, non-gene edited allogeneic CAR T candidate engineered to co-express a single hairpin RNA (shRNA) and a BCMA-targeting chimeric antigen receptor in development for the treatment of relapsed/refractory multiple myeloma (r/r MM). This non-gene editing technology, which does not permanently alter the genome integrity, is intended to decrease the potential safety risk associated with “off-target” genome modifications. This “All-in-One” Vector approach with one single transduction step avoids multiple genetic modifications and cost associated with additional GMP grade materials.

EHA 2021 ePoster Presentation Details:

The following abstract published today is now available on the EHA 2021 website. Following the presentation at the meeting, the posters will be available in the Scientific Publications section of Celyad Oncology’s website.

Title: Objective response at low dose in the first-in-human IMMUNICY-1 trial evaluating non-gene edited allogeneic CYAD-211 anti-BCMA CAR T product in relapsed or refractory multiple myeloma