

Collaboration Allows Genprex to Accelerate Manufacturing Processes for IND-Enabling Preclinical Studies and Future Clinical Trials AUSTIN, Texas, Aug. 18, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that it has entered into a development and manufacturing agreement with a leading U.S. based clinical and commercial Contract Development and Manufacturing Organization (CDMO) to initiate the manufacturing scale-up of its diabetes gene therapy program. This strategic selection allows for the transition of the Company's therapeutic candidate from research-grade production to clinical and commercial-ready output.

Collaboration Advances Biomarker-Driven Patient Selection and Precision Medicine in Oncology Validation Studies Aim to Optimize Clinical Trial Patient Selection Criteria AUSTIN, Texas, Aug. 3, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced its collaboration with Roche Diagnostics to validate biomarkers for patient selection in clinical trials for non-small cell lung cancer (NSCLC). Building on promising preclinical and clinical data, this collaboration intends to refine patient identification using TROP2 as a biomarker.

Patent Covers Acclaim-3 Clinical Trials Combining REQORSA Gene Therapy with Genentech, Inc.'s Tecentriq® AUSTIN, Texas, June 22, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that The Canadian Intellectual Property Office (CIPO) has issued a Notice of Allowance to Genprex for a patent covering the use of Reqorsa® Gene Therapy (quaratusugene ozeplasmid) in combination with either PD-1 or PD-L1 antibodies for the treatment of both non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). "Securing this patent strengthens Genprex's intellectual property portfolio, providing crucial protection for the therapeutic combinations currently being evaluated in the Acclaim-3 clinical trial," said Thomas Gallagher, Senior Vice President of Intellectual Property and Licensing at Genprex.

The BIO International Convention Brings Together More Than 20,000 Biotech Industry Leaders From Around The World AUSTIN, Texas, June 17, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that its team will be attending and participating at the BIO 2026 International Convention taking place June 22-25, 2026 in San Diego, California. In attendance from Genprex's executive leadership team will be Thomas Gallagher, Senior Vice President of Intellectual Property and Licensing.

Trop-2 H-scores Above 100 and PTEN H-scores Below 100 Correlated With Longer Progression Free Survival in Non-Small Cell Lung Cancer Patients Identified Biomarkers May Predict Patient Response, Enable Targeted Patient Selection and Allow for Precision Medicine AUSTIN, Texas, May 26, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that its research collaborators' abstract was published at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting. The abstract details positive clinical data from studies of predictive biomarkers in patients receiving its lead drug candidate, Reqorsa® Gene Therapy (quaratusugene ozeplasmid), for the treatment of lung cancer.

Pdx1/MafA Gene Therapy Reversed Hyperglycemia in Type 2 Diabetic Models Within Four Weeks AUSTIN, Texas, May 14, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that its research collaborators presented positive preclinical data on the Company's diabetes gene therapy drug candidate at the 2026 American Society of Gene and Cell Therapy (ASGCT) Annual Meeting. The collaborators presented preclinical data demonstrating that the diabetes gene therapy (Pdx1/MafA gene therapy, PM or GPX-002) can reverse hyperglycemia in Type 2 diabetic (T2D) mouse models.

Strengthens Patent Estate and Expands Protection in Another Target Market AUSTIN, Texas, April 30, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that The Israel Patent Office (ILPO) has granted Genprex a patent covering the use of Reqorsa® Gene Therapy (quaratusugene ozeplasmid) in combination with PD-1 antibodies for the treatment of cancer. "Securing this patent in Israel further solidifies Genprex's robust patent estate for Reqorsa®, particularly for its synergistic combination with PD-1 antibodies in treating various cancers," said Thomas Gallagher, Senior Vice President of Intellectual Property and Licensing at Genprex.

Pdx1/MafA Gene Therapy Reversed Hyperglycemia in Type 2 Diabetic Models Within Four Weeks AUSTIN, Texas, April 28, 2026 /PRNewswire/ -- Genprex, Inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, today announced that its research collaborators will present positive preclinical data on the Company's diabetes gene therapy drug candidate at the upcoming 2026 American Society of Gene and Cell Therapy (ASGCT) Annual Meeting, taking place May 11-15, 2026 in Boston, Mass. The collaborators will present preclinical data demonstrating that the diabetes gene therapy (Pdx1/MafA gene therapy, PM or GPX-002) can reverse hyperglycemia in Type 2 diabetic (T2D) mouse models.