Lyell Immunopharma Presentations at SITC Highlight New Nonclinical Data on Product Candidates and Innovative Technology to Shorten TIL Manufacturing - Seite 2

• Presentation details: Abstract # 379, Friday, Nov. 3, 12–1:30 p.m. and 5:10–6:40 p.m.
  

New nonclinical data on LYL119, Lyell’s second-generation ROR1-targeted CAR T-cell therapy, is highlighted in a presentation titled “Preclinical development of LYL119, a ROR1-targeted CAR T-cell product incorporating four novel T-cell reprogramming technologies to overcome barriers to effective cell therapy for solid tumors.” LYL119 incorporates four of Lyell’s complementary, stackable T-cell reprogramming technologies to create potent ROR1-targeted CAR T cells with durable function. In this study, LYL119 demonstrated superior cytotoxicity and sustained cytokine production upon repeated antigen stimulation compared to various controls lacking one or more of the reprogramming technologies and showed robust in vivo antitumor efficacy in a mouse xenograft tumor model at very low cell doses.

• Presentation details: Abstract #278, Saturday, Nov. 4, 2023, 11:55–1:25 p.m. and 7–8:30 p.m.
  

A presentation titled “Protein design and inducible expression allow context-dependent, localized IL-12 activity to enhance solid tumor T cell therapies” highlights an innovative tumor-restricted IL-12 (trIL-12) technology that delivers potent IL-12 stimulation at the tumor site while avoiding systemic exposure. IL-12 is an immune-stimulatory cytokine that can induce potent anti-tumor activity, but systemic delivery of IL-12 has been shown to cause severe toxicity in patients. trIL-12 was designed leveraging Outpace’s OutSmart technology to rapidly auto-inactivate IL-12 after inducible secretion from engineered T cells with the aim of achieving safe, local delivery of IL-12 activity. trIL-12 is being advanced under a collaboration between Lyell and Outpace with the goal of improving efficacy for T-cell therapies while maintaining a favorable safety profile.

• Presentation details: Abstract #1047, Friday, Nov. 3, 12–1:30 p.m. and 5:10–6:40 p.m.
  

A presentation titled “Rejuvenation of tumor-infiltrating lymphocytes (TIL) through Partial Reprogramming” describes Lyell’s rejuvenation technology which has shown the potential to “turn back” the epigenetic clock to generate more stem-like T cells with reduced epigenetic age and enhanced proliferation ability. Previously published studies have demonstrated the decline in T-cell function as a person ages. These new nonclinical data show TIL rejuvenated with Lyell’s technology retain a broad TCR repertoire and demonstrate improved T-cell function and antitumor properties.