IMUNON Announces 2025 ASCO Annual Meeting Oral Presentation Highlighting Unprecedented Survival Data from Phase 2 Trial of IMNN-001 in Treatment of Newly Diagnosed Advanced Ovarian Cancer

Data show continuous clinically significant improvement, with median 13-month and 3-month increases in overall and progression-free survival, respectively, in treatment group

Women treated with IMNN-001 and standard of care chemotherapy plus PARP inhibitors achieved nearly 12-month increase in PFS compared to standard of care; median OS in IMNN-001 treatment arm not yet reached after more than five years

Phase 2 OVATION 2 Study results also published in peer-reviewed journal Gynecologic Oncology

LAWRENCEVILLE, N.J., May 23, 2025 (GLOBE NEWSWIRE) -- IMUNON, Inc. (NASDAQ: IMNN), a clinical-stage company in Phase 3 development of its DNA-mediated immunotherapy, today announced new positive data from the Company’s Phase 2 OVATION 2 Study of IMNN-001, an investigational therapy for the treatment of advanced ovarian cancer. Results are being highlighted in an oral presentation at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting, being held May 30 - June 3, 2025, in Chicago, Illinois and virtually, and are also being published simultaneously in the peer-reviewed journal Gynecologic Oncology.

Based on the highly encouraging Phase 2 OVATION 2 Study results and following alignment with the U.S. Food and Drug Administration (FDA), IMUNON recently initiated the first two sites for its pivotal Phase 3 OVATION 3 Study of IMNN-001 in newly diagnosed advanced ovarian cancer.

“We are very encouraged by these remarkable results and the fact that they are being presented in two of the most prestigious platforms in oncology research – the ASCO Annual Meeting and Gynecologic Oncology,” said Stacy Lindborg, Ph.D., president and chief executive officer of IMUNON. “As we continue to evaluate findings from our Phase 2 OVATION 2 Study, the data show consistently strong improvement in overall and progression-free survival, suggesting that IMNN-001 may drive positive outcomes that can truly make a difference in the lives of women with ovarian cancer, even for those with advanced and very difficult to treat stages of disease.”

“The results from this Phase 2 trial are powerful and highly encouraging. Typically, an increase in survival of six months is considered clinically meaningful. The data being presented at ASCO indicate that IMNN-001 could extend the lives of women with newly diagnosed with advanced ovarian cancer by one year or longer, representing a potentially historic advance in standard of care,” said Premal H. Thaker, M.D., Interim Chief of Gynecologic Oncology, David & Lynn Mutch Distinguished Professor of Obstetrics & Gynecology, Director of Gynecologic Oncology Clinical Research at Washington University School of Medicine, OVATION 2 Study Chair and Study Chair of Phase 3 OVATION 3 trial. “This is the first immunotherapy with a favorable safety profile to demonstrate survival benefits when used in conjunction with standard of care chemotherapy in a frontline setting. The fact that IMNN-001 has the potential to be used in conjunction with PARP inhibitors and in women with HRD and BRCA mutations is also particularly exciting. I look forward to helping enroll the Phase 3 trial in the months ahead.”