Lyell Immunopharma Inc (LYEL)

[jondoeuk]

It will be interesting to see GILD's KITE-753 clinical data. The only difference between it (and KITE-363) is a reduced production time.

However, based on preclinical data, KITE-753 exhibited higher expression of both CARs and increased proportion of CCR7+/CD45RA+ T-cells* compared to the KITE-363 benchmark.

Also, KITE-753 exhibited enhanced cytokine production, enhanced proliferation, increased peripheral peak expansion, and superior antitumour efficacy compared to the KITE-363 benchmark.

* CCR7+/CD45RA+CD4+ of ~60% vs ~5%, and CCR7+/CD45RA+CD8+ of ~80% vs ~15%.

High circulating CCR7+ populations positively correlate with antitumour response https://www.nature.com/articles/s41591-020-1061-7