Workflow
Genprex Collaborators Report Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Ras Inhibitor Resistant Lung Cancer at the 2025 AACR Annual Meeting
GenprexGenprex(US:GNPX) Prnewswire·2025-04-30 11:30

Core Viewpoint - Genprex, Inc. announced positive preclinical data for Reqorsa® Gene Therapy, demonstrating its robust anti-tumor effects in KRASG12C mutant non-small cell lung cancer (NSCLC), both alone and in combination with LUMAKRAS® [1][2]. Group 1: Preclinical Data Presentation - The positive preclinical data was presented at the 2025 American Association for Cancer Research (AACR) Annual Meeting, highlighting the therapeutic potential of REQORSA in treating Ras inhibitor resistant lung cancer [1][2]. - The poster titled "Overcoming sotorasib acquired resistance in KRASG12C mutant NSCLC by TUSC2 gene therapy" showcased that TUSC2 gene therapy effectively overcomes acquired resistance to sotorasib in mouse xenografts [3]. Group 2: Efficacy of Reqorsa - TUSC2 transfection significantly reduced colony formation and increased apoptosis in acquired resistance cell lines, indicating strong anti-tumor efficacy [3]. - REQORSA alone showed a strong anti-tumor effect on TC314AR PDXs, while sotorasib alone exhibited no significant activity [3]. - A synergistic effect was observed when combining REQORSA with sotorasib, enhancing tumor control compared to either treatment alone [3]. Group 3: Technology and Delivery System - Reqorsa consists of a plasmid containing the TUSC2 gene encapsulated in non-viral lipid-based nanoparticles, specifically targeting cancer cells while minimizing uptake by normal tissue [5]. - Laboratory studies indicated that the uptake of TUSC2 in tumor cells after REQORSA treatment was 10 to 33 times higher than in normal cells [5]. Group 4: Company Overview - Genprex, Inc. is a clinical-stage gene therapy company focused on developing therapies for cancer and diabetes, utilizing its Oncoprex® Delivery System for gene administration [6][7]. - The company is advancing its pipeline of gene therapies and has received Fast Track Designation from the FDA for its lung cancer clinical programs [7].