On May 28, 2026 Theolytics, a clinical-stage biotechnology company developing next-generation oncolytic immunotherapies, reported that its Phase 1 OCTOPOD-IP clinical trial of THEO-260, a novel oncolytic immunotherapy, given by intraperitoneal delivery in patients with Platinum-Resistant Ovarian Cancer will be presented as a ‘Trials in Progress’ poster at the 2026 American Society for Clinical Oncology (ASCO) (Free ASCO Whitepaper) World Congress. ASCO (Free ASCO Whitepaper) is taking place in Chicago, US from May 29 – June 2.
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The trial is led by Amir A. Jazeri, MD, Vice Chair for Clinical Research and the Director of the Gynecologic Cancer Immunotherapy Program in the Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center.
Details of the ASCO (Free ASCO Whitepaper) presentation are:
A phase I trial of intraperitoneal THEO-260 in patients with high-grade serous or endometrioid ovarian cancer
· Presenter: Amir A. Jazaeri, MD,
· Abstract Number: TPS5635
· Session: Gynecologic Cancer
· Poster Board: 297b
· Place / Time: Hall A, Monday June 1, 09.00-12.00am (CDT)
The abstract is available online on the ASCO (Free ASCO Whitepaper) website (click here).
Dr. Jazaeri commented, "Ovarian cancer remains a significant cause of death in the US with almost 18,000 women predicted to die from the disease in 2026. Within this patient population, platinum-resistant ovarian cancer presents a high unmet need with few effective treatment options, and I am excited to lead this clinical trial to investigate whether THEO-260 can bring significant benefit to these patients."
David Apelian, Theolytics’ CEO, added, "Ovarian and other solid cancers are characterized by a rich stromal component with a high proportion of cancer-associated fibroblasts (CAFs). This creates an immunosuppressive environment that limits the therapeutic impact of immunotherapy approaches. With THEO-260, we aim to overcome this barrier by harnessing its ability to target and destroy cancer cells and CAFs and explore complementary routes of administration through IP delivery in the US OCTOPOD-IP trial and IV delivery in our ongoing Phase 1/2a OCTOPOD-IV trial in the UK, Spain and Canada."
The US OCTOPOD-IP trial (NCT07211659) will assess the safety and tolerability of THEO-260 administered directly to the peritoneal cavity (IP delivery) in PROC patients and includes extensive biomarker studies to showcase THEO-260’s differentiated mode of action.
(Press release, Theolytics, MAY 28, 2026, View Source [SID1234666153])