A Study of Metastatic Gastrointestinal Cancers Treated With Tumor Infiltrating Lymphocytes in Which the Gene Encoding the Intracellular Immune Checkpoint CISH Is Inhibited Using CRISPR Genetic Engineering

Summary

A clinical trial to assess the safety and efficacy of genetically-engineered, neoantigen-specific Tumor Infiltrating Lymphocytes (TIL) in which the intracellular immune checkpoint CISH has been inhibited using CRISPR gene editing for the treatment of Gastro-Intestinal (GI) Cancer.

Timeline

Start

2020-05-15

Primary completion

2025-05-28

Completion

2026-01-22

Publications

• Background Palmer DC, Guittard GC, Franco Z, Crompton JG, Eil RL, Patel SJ, Ji Y, Van Panhuys N, Klebanoff CA, Sukumar M, Clever D, Chichura A, Roychoudhuri R, Varma R, Wang E, Gattinoni L, Marincola FM, Balagopalan L, Samelson LE, Restifo NP. Cish actively silences TCR signaling in CD8+ T cells to maintain tumor tolerance. J Exp Med. 2015 Nov 16;212(12):2095-113. doi: 10.1084/jem.20150304. Epub 2015 Nov 2.
• Background Osborn MJ, Webber BR, Knipping F, Lonetree CL, Tennis N, DeFeo AP, McElroy AN, Starker CG, Lee C, Merkel S, Lund TC, Kelly-Spratt KS, Jensen MC, Voytas DF, von Kalle C, Schmidt M, Gabriel R, Hippen KL, Miller JS, Scharenberg AM, Tolar J, Blazar BR. Evaluation of TCR Gene Editing Achieved by TALENs, CRISPR/Cas9, and megaTAL Nucleases. Mol Ther. 2016 Mar;24(3):570-81. doi: 10.1038/mt.2015.197. Epub 2015 Oct 27.
• Background Tran E, Ahmadzadeh M, Lu YC, Gros A, Turcotte S, Robbins PF, Gartner JJ, Zheng Z, Li YF, Ray S, Wunderlich JR, Somerville RP, Rosenberg SA. Immunogenicity of somatic mutations in human gastrointestinal cancers. Science. 2015 Dec 11;350(6266):1387-90. doi: 10.1126/science.aad1253. Epub 2015 Oct 29.
• Johnson MJ, Sumstad D, Folsom TD, Slipek NJ, DeFeo AP, Growe M, Kadidlo D, Thyagarajan B, Starr TK, Lou E, Choudhry M, Moriarity BS, Webber BR, McKenna DH. Clinical manufacture of CRISPR/Cas9-based cytokine-induced SH2 protein knock-out tumor-infiltrating lymphocytes for gastrointestinal cancers. Cytotherapy. 2025 Oct;27(10):1229-1239. doi: 10.1016/j.jcyt.2025.06.007. Epub 2025 Jun 21.
• Lou E, Choudhry MS, Starr TK, Folsom TD, Bell J, Rathmann B, DeFeo AP, Kim J, Slipek N, Jin Z, Sumstad D, Klebanoff CA, Ladner K, Sarkari A, McIvor RS, Murray TA, Miller JS, Rao M, Jensen E, Ankeny J, Khalifa MA, Chauhan A, Spilseth B, Dixit A, Provenzano PP, Pan W, Weber D, Byrne-Steele M, Henley T, McKenna DH, Johnson MJ, Webber BR, Moriarity BS. Targeting the intracellular immune checkpoint CISH with CRISPR-Cas9-edited T cells in patients with metastatic colorectal cancer: a first-in-human, single-centre, phase 1 trial. Lancet Oncol. 2025 May;26(5):559-570. doi: 10.1016/S1470-2045(25)00083-X. Epub 2025 Apr 29.

Drugs

Indications