Lyell Immunopharma Announces Positive New Clinical Data Demonstrating High Rates of Durable Complete Responses from the Phase 1/2 Trial of LYL314 for the Treatment of Aggressive Large B-cell Lymphoma

• LYL314 demonstrated robust clinical responses, with an 88% overall response rate and a 72% complete response rate in patients treated in the third- or later-line setting (N = 25)
• 71% of patients with complete response remained in complete response at ≥ 6 months
• Manageable safety profile appropriate for outpatient administration with no Grade ≥ 3 cytokine release syndrome and low rates of Grade ≥ 3 ICANS with rapid resolution
• Pivotal single-arm PiNACLE trial is underway in CAR T-naïve patients with large B-cell lymphoma treated in the third- or later-line setting
• Lyell to host an investor webcast at 8:00 AM ET today
  

SOUTH SAN FRANCISCO, Calif., June 17, 2025 (GLOBE NEWSWIRE) -- Lyell Immunopharma, Inc. (Nasdaq: LYEL), a clinical-stage company advancing next-generation CAR T-cell therapies for patients with cancer, today announced positive new clinical data from the multi-center Phase 1/2 trial of LYL314, including data from patients with large B-cell lymphoma (LBCL) treated in the third- or later-line (3L+) setting. LYL314 is an autologous dual-targeting CD19/CD20 chimeric antigen receptor (CAR) T-cell product candidate with Regenerative Medicine Advanced Therapy (RMAT) and Fast Track designations from the FDA that is in development for patients with relapsed and/or refractory (R/R) LBCL. In patients treated in the 3L+ setting (N = 25), LYL314 continued to demonstrate robust clinical responses, with an 88% overall response rate and a 72% complete response rate. Of the 3L+ patients who achieved a complete response, 71% remained in complete response at ≥ 6 months. The single-arm pivotal PiNACLE trial, a seamless expansion of the Phase 1/2 trial of patients with R/R LBCL being treated in the 3L+ setting, is underway.

“Based on the LYL314 data to be presented at the International Conference on Malignant Lymphoma and my personal experience treating patients in the clinical trial, I believe that LYL314 has the potential to provide differentiated benefit for patients with relapsed/refractory large B-cell lymphoma in both the complete response rate and durability of response,” stated Akil Merchant, MD, Associate Professor and Co-Director of the Lymphoma Program at the Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, and an investigator in the Phase 1/2 clinical trial. “We look forward to completing enrollment in the ongoing single-arm pivotal trial evaluating LYL314 in patients in the third- or later-line setting.”

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