Drugs / quaratusugene ozeplasmid
last change May 2026 re-read 9 days ago

quaratusugene ozeplasmid

also known as Oncoprex

Other / unclassified targets TUSC2 via restoration

Developed for
non-small cell lung carcinoma · small cell lung carcinoma
Investigated by
Genprex, Inc.

Trials 3

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT05062980 Mar 2022 → Feb 2025 non-small cell lung carcinoma Genprex, Inc. Terminated No outcome recorded Stop: Enrollment
Phase 1/22 trials
Phase 1/2 NCT05703971 May 2024 → Dec 2027 expected small cell lung carcinoma Genprex, Inc. Recruiting No outcome recorded
Phase 1/2 NCT04486833 Sep 2021 → Mar 2028 expected non-small cell lung carcinoma Genprex, Inc. Recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 20

DateIssuerRelease
2026-05-26 Genprex, Inc. Results Positive Clinical Data on Biomarkers in Patients Receiving Reqorsa® Gene Therapy Published at the 2026 ASCO Annual Meeting genprex.com ↗
In patients with NSCLC, Trop-2 H-scores above 100 correlated with prolonged PFS (p=0.05), and PTEN H-scores below 100 correlated with prolonged PFS (p=0.03).
2026-04-20 Genprex, Inc. Results Genprex Collaborators Present Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Lung Cancer at the 2026 AACR Annual Meeting genprex.com ↗
The collaborators presented positive preclinical data from studies of its lead drug candidate, Reqorsa® Gene Therapy (quaratusugene ozeplasmid, also referred to as Quar Oze), for the treatment of lung cancer.
2026-03-18 Genprex, Inc. Results Genprex Collaborators to Present Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Lung Cancer at the 2026 AACR Annual Meeting genprex.com ↗
TROP2 and PTEN are biomarkers of primary resistance to TUSC2 gene therapy in non-small cell lung cancer (NSCLC)
2025-11-24 Genprex, Inc. Results Data from Genprex’s Acclaim-1 Phase 1 Gene Therapy Clinical Trial Published in Clinical Lung Cancer genprex.com ↗
The Phase 1 dose escalation portion of the trial was designed primarily to assess safety, however, the Company believes promising efficacy results were also observed.
2025-10-28 Genprex, Inc. Results Genprex Collaborators Report Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Lung Cancer at the 2025 AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics genprex.com ↗
These data also add to the existing preclinical data showing that REQORSA has significant activity on its own as well as when combined with other therapies in a mouse xenograft model with ALK-EML4 rearrangement.
2025-10-23 Genprex, Inc. Results Genprex Collaborators to Present Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Lung Cancer at the 2025 AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics genprex.com ↗
Our researchers found that REQORSA alone or in combination with alectinib was able to shrink tumors by 79 percent
2025-04-30 Genprex, Inc. Results 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 genprex.com ↗
Both REQORSA Alone and in Combination with LUMAKRAS® Demonstrated Robust Anti-Tumor Effects in Ras Inhibitor Resistant Non-Small Cell Lung Cancer
2025-04-22 Genprex, Inc. Results Genprex Announces Research Collaborators’ Abstract Published in Cancer Research Supplement Proceedings genprex.com ↗
2024-12-16 Genprex, Inc. Results Genprex Receives Safety Review Committee Approval to Advance to Phase 2 Portion of Acclaim-3 Clinical Trial of Reqorsa® Gene Therapy in Combination with Tecentriq® in Extensive Stage Small Cell Lung Cancer genprex.com ↗
Based on full safety data, which showed no dose limiting toxicities (DLTs), the SRC determined that the Recommended Phase 2 Dose (RP2D) of REQORSA will be 0.12 mg/kg.
2024-10-28 Genprex, Inc. Results Genprex Collaborators Present Positive Preclinical Data on the Use of Reqorsa® Gene Therapy for the Treatment of Lung Cancer, Mesothelioma and Glioblastoma genprex.com ↗
The collaborators presented posters on positive preclinical data from studies of Genprex’s lead drug candidate, Reqorsa® Gene Therapy (quaratusugene ozeplasmid), for the treatment of Ras inhibitor resistant lung cancer, mesothelioma and glioblastoma.
2024-10-15 Genprex, Inc. Results Genprex Receives Safety Review Committee Approval to Advance to Highest Dose Group in Phase 1 Portion of Acclaim-3 Clinical Trial of Reqorsa® Gene Therapy in Combination with Tecentriq® in Extensive Stage Small Cell Lung Cancer genprex.com ↗
There were no dose limiting toxicities (DLTs) in this dose group and the SRC recommended moving up to the highest dose group planned in the trial.
2024-10-10 Genprex, Inc. Results Genprex Collaborators to Present Positive Preclinical Data on the Use of Reqorsa® Gene Therapy at the 2024 EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics genprex.com ↗
“The compelling data made available today validates the potential of REQORSA as a therapeutic treatment for some of the most difficult to treat cancers and diseases, including Ras inhibitor resistant lung cancer, mesothelioma and glioblastoma,” said Ryan Confer, President and Chief Executive Officer at Genprex.

All press releases naming this drug 40 releases

DateIssuerRelease

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 4 sources stand behind the page.

FieldValueCited text
Known as quaratusugene ozeplasmid ClinicalTrials.gov intervention name — accepted as the source's own label NCT05703971 ↗
2

NCT04486833 ↗

NCT05062980 ↗

Known as Oncoprex ChEMBL registry synonym — accepted as the source's own label CHEMBL4594390 ↗
Action Restore “reestablishing pathways that promote cancer cell death” NCT04486833 ↗
Modality Other / unclassified “experimental nonviral immunogene therapy” NCT05703971 ↗
Route Intravenous “intravenous administration once every 21 days” NCT04486833 ↗
Target TUSC2 “utilizing the TUSC2 gene” NCT05703971 ↗