Trials / Withdrawn

WithdrawnNCT05566223

CISH Inactivated TILs in the Treatment of NSCLC

A Phase 1/2 Trial (CheckCell-2) in Patients With Metastatic Non-small Cell Lung Cancer (NSCLC) Administering Tumor-Infiltrating Lymphocytes (TILs) in Which the Gene Encoding CISH Was Inactivated Using the CRISPR/Cas9 System

Status: Withdrawn
Phase: Phase 1 / Phase 2
Study type: Interventional
Enrollment: 0 (actual)

Sponsor: Intima Bioscience, Inc. · Industry
Sex: All
Age: 18 Years – 75 Years
Healthy volunteers: Not accepted

Summary

A clinical trial to assess the safety and efficacy of genetically-engineered Tumor Infiltrating Lymphocytes (TIL) in which the intracellular immune checkpoint CISH has been inhibited using CRISPR gene editing for the treatment of Metastatic Non-small Cell Lung Cancer (NSCLC).

Detailed description

Tumor Infiltrating Lymphocytes (TIL) have shown efficacy in certain cancers, principally in melanoma, but also in non-small cell lung cancer (NSCLC). Combination cell surface checkpoint inhibitor therapy has also been employed in an attempt to enhance the efficacy of these cell therapies. Genetic engineering of T cells to further increase anti-tumor activity is now possible. CISH (Cytokine-induced SH2 protein) is a novel intra-cellular immune checkpoint and an important negative regulator of T-cell signaling and function. The inhibition of CISH in mouse anti-tumor lymphocytes results in a marked increase in the ability of these lymphocytes to mediate tumor regression following administration to tumor bearing mice. Additionally, data in genetically-engineered, neoantigen-specific human T cells in which CISH was inhibited, showed enhanced TCR functional avidity and increased ability of these T cells to detect cancer specific mutations and mount robust polyfunctional cytokine immune responses against their cognate cancer antigens. Thus, these T cells appear to have a significant advantage in inducing anti-tumor responses compared to wild-type anti-tumor lymphocytes. The researchers have developed and optimized a CRISPR/Cas9 based strategy for precise and efficient genetic engineering in primary human T-cells without sacrificing cell viability or function, allowing for inhibition of a heretofore undruggable intracellular checkpoint. Thus, in this protocol, the researchers propose to inhibit the gene encoding the intracellular checkpoint target CISH in TIL from patients with metastatic NSCLC whose tumors are PD-L1 negative or positive in order to evaluate the safety and efficacy of genetically engineered T cell therapy in the setting of novel checkpoint inhibition .

Conditions

Interventions

Type	Name	Description
DRUG	Fludarabine	Day -7 to Day -3 : Fludarabine 25 mg/m\^2/dose as a 1 hour intravenous infusion per institutional guidelines once a day for 5 doses beginning on Day -7. Fludarabine will be started approximately 1 to 2 hours after the cyclophosphamide on Day -6 and Day -5.
DRUG	Cyclophosphamide	Day -6 and Day -5: Cyclophosphamide 60 mg/kg/dose as a 2 hour intravenous infusion with Mesna 15 mg/kg/dose, 1st dose prior to Cyclophosphamide infusion then at 3,6,9 and 12 hours later.
BIOLOGICAL	CISH Inactivated TIL	Day 0 : Each bag of autologous CISH inactivated TIL for infusion will be administered intravenously (IV) on the Patient Care Unit over 10-20 minutes at assigned dose level.
DRUG	Aldesleukin	Days 1-4 : Aldesleukin at 720,000 U/kg as an intravenous infusion, every 8 -12 hours but, no more than 24 hours apart as tolerated for up to 6 doses.
DRUG	Pembrolizumab	Administered as maintenance therapy in some patients starting at first follow-up (400 mg/dose starting Day 28 /Week 4 then every 6 weeks thereafter until disease progression, unacceptable toxicity, or up to 24 months)

Timeline

Start date: 2023-02-01
Primary completion: 2025-11-01
Completion: 2027-11-01
First posted: 2022-10-04
Last updated: 2026-02-23

Locations

2 sites across 1 country: United States

Regulatory

FDA-regulated drug study

Source: ClinicalTrials.gov record NCT05566223. Inclusion in this directory is not an endorsement.