Profile: Genprex Inc (GNPX.OQ)
18 Sep 2019
Genprex, Inc. is a clinical stage gene therapy company. The Company is focused on developing cancer-based upon its novel proprietary technology platform, including its initial product candidate, Oncoprex, immunogene therapy, or Oncoprex. The Company’s Oncoprex is lead product candidate, is the subject of an ongoing Phase I/II clinical trials at The University of Texas MD Anderson Cancer Center in patients with late stage non-small cell lung cancer, or NSCLC. Oncoprex gene therapy platform may also be effective with respect to other types of cancer, including breast, head and neck, renal cell (kidney), soft tissue cancer. The Company’s platform technologies are designed to administer cancer fighting genes by encapsulating them into nanoscale hollow spheres called nanovesicles.
The Company’s Oncoprex has a multimodal mechanism of action whereby it interrupts cell signaling pathways that cause replication and proliferation of cancer cells, re-establishes pathways for apoptosis, or programmed cell death, in cancer cells, and modulates the immune response against cancer cells. The Company with Oncoprex argeting non-small cell lung cancer, or NSCLC. And conducted two Phase I clinical trials and conducting an ongoing Phase II clinical trial of Oncoprex in NSCLC. The Phase II combination trial is designed to include subjects treated with the combination of Oncoprex and erlotinib at the maximum tolerated dose (MTD) with the primary goal of measuring the response rate, and secondary endpoints of stable disease, time to progression and overall survival.
The Company’s immunogene therapy platform consists of anti-cancer genes encapsulated in nanovesicles delivered intravenously. The Oncoprex TUSC2 gene is encapsulated in a positively charged nanovesicle that binds to actively replicating (and therefore negatively charged) cancer cells, and then enters the cancer cell through selective endocytosis. These nanoscale vesicles differ significantly from liposomes historically used for drug delivery in that they are true particles encapsulating the therapeutic payload within a bilamellar lipid coat. The Company collaborators at MD Anderson have optimized the characteristics of lipids including N-(1-(2,3-Dioleoyloxy)propyl)-N,N,N-trimethylammonium methyl sulfate, or DOTAP cholesterol and a DNA plasmid expressing the TUSC2 tumor suppressor gene which form a spherical particle with a hollow center, nanoscale in size, which encapsulates the TUSC2 gene for delivery as Oncoprex.
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