Equity Insider News Commentary – With early onset cancer rates on the rise and funding being cut to NIH, the future for cancer patients is increasingly being shaped not by public institutions, but by the breakthroughs emerging from the private sector. For investors watching the next wave of oncology breakthroughs, companies like Oncolytics Biotech , Akoya Biosciences, Quanterix Corporation , TScan Therapeutics, and Arcellx, are increasingly standing out.
Cancer treatment markets are on track for massive expansion over the next decade. Immunotherapy, in particular, is expected to reach an annual market size of US$1.2 trillion by 2033, driven by a compound annual growth rate of 18%, according to analysts at Precedence Research. Meanwhile, global oncology spending overall is projected by Vision Research Reports to surpass US$900 billion, climbing at an estimated 11% per year.
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Oncolytics Biotech Inc. is gaining new visibility ahead of its upcoming presentation at the 2025 ASCO Annual Meeting, where the company will unveil new clinical trial data on pelareorep’s immunological activity in pancreatic cancer. The data, drawn from the GOBLET study, highlights how pelareorep appears to convert immunologically “cold” tumors into “hot,” inflamed environments potentially making them more vulnerable to immune attack.
Specifically, new analyses show pelareorep induces a pro-inflammatory tumor microenvironment (TME) and activates both innate and adaptive immunity. This is a rare achievement in pancreatic ductal adenocarcinoma (PDAC), a cancer type widely considered resistant to immune-based therapies.
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“For the first time, we’re able to map the cascade of immune responses stimulated by pelareorep,” said Thomas Heineman, M.D., Ph.D., Chief Medical Officer for Oncolytics. “It starts with the expansion of anti-reovirus T cells, followed by the upregulation of chemokines that mediate the expansion of pre-existing TIL (tumor-infiltrating lymphocyte) clones in the blood.”
According to Heineman, these immune cells don’t just expand in the bloodstream—they’re believed to return to the tumor itself and help shrink it.
“These T cells can now return to the tumor and attack it, resulting in a reduction in tumor size,” Heineman added. “Pelareorep-mediated upregulation of chemokines also makes the tumor microenvironment immunologically active and able to actively recruit cancer-specific T cells to the tumor. These findings deepen our understanding of pelareorep’s ability to convert immunologically cold tumors into immunologically active ones that may benefit from pelareorep-based combination therapy.”
The abstract, titled “Role of pelareorep in activating anti-tumor immunity in PDAC,” (Abstract #2562) will be presented as a poster during the Developmental Therapeutics – Immunotherapy session on June 2, 2025. A copy will be made available on the Media page of Oncolytics‘ website following the session.
This new mechanistic insight builds on prior efficacy data from GOBLET Cohort 1, where pelareorep—combined with nab-paclitaxel, gemcitabine, and the checkpoint inhibitor atezolizumab—produced a 62% overall response rate, 85% disease control rate, and 45% 12-month survival rate in first-line metastatic PDAC patients.
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For context, GOBLET is a multi-cohort, phase 1/2 study evaluating pelareorep in combination with various immunotherapy and chemotherapy regimens across gastrointestinal cancers. Conducted in partnership with AIO-Studien-gGmbH in Germany, the trial uses an adaptive design: cohorts meeting efficacy thresholds may expand enrollment. In pancreatic cancer, this trial is a proving ground for pelareorep’s use in first-line and newly diagnosed settings—potentially setting up future pivotal decisions.
Progress continues elsewhere in the GOBLET study as well. In Cohort 5, newly diagnosed metastatic PDAC patients received pelareorep with modified FOLFIRINOX, with or without atezolizumab. After completing the safety run-in in six evaluable patients, the study has been cleared to proceed by both Germany’s Paul-Ehrlich-Institut and an independent data safety monitoring board. This arm is backed by a US$5 million PanCAN grant, with further data expected in 2026. Favorable data from this cohort could expand pelareorep’s potential addressable market in this indication.
Meanwhile, in anal cancer, Cohort 4 has already reported signs of durable response. Of 12 evaluable patients treated with pelareorep and atezolizumab, four achieved partial responses, and one reached a complete response lasting more than 15 months—results that surpass historical benchmarks for checkpoint inhibitors alone. The cohort is now being expanded to validate these findings and assess registrational potential.
In breast cancer, the recently completed randomized phase 2 BRACELET-1 trial in HR+/HER2- metastatic disease showed patients receiving pelareorep plus paclitaxel nearly doubled their progression-free survival compared to paclitaxel alone. These outcomes are supportive of those seen in a prior randomized phase 2 study and strengthen the case for a pivotal trial.
Key opinion leaders continue backing pelareorep’s approach. In a recent panel hosted by H.C. Wainwright, Profs. Martine Piccart and Alexander Eggermont emphasized how pelareorep may help “turn cold tumors hot”—a key requirement for making immunotherapies effective in traditionally resistant cancers.
While still in the clinical development stage, pelareorep has demonstrated compatibility with multiple chemotherapies and checkpoint inhibitors, suggesting it could function as a plug-in immune booster across diverse treatment regimens. Its intravenous delivery, systemic impact, and favorable safety profile further support its adaptability in combination trials.
“Pelareorep continues to build clinical momentum, delivering encouraging results in challenging cancer types and has the potential to extend and improve the lives of patients,” said Wayne Pisano, Chair of Oncolytics‘ Board of Directors and Interim CEO. “This versatility and broad potential applicability are achieved via intravenous administration and the ability to combine with chemotherapies and checkpoint inhibitors while maintaining a favorable safety profile.”
As it stands, Oncolytics may be entering a stretch where scientific validation, clinical optionality, and capital flexibility are all converging. The company ended Q1 2025 with $15.3 million in cash and a US$20 million equity facility from Alumni Capital, giving it financing control without restrictive terms or dilutive warrants.
With fresh data coming out of ASCO and multiple arms of GOBLET advancing, pelareorep’s immune-activating potential appears to be gaining traction across an expanding range of solid tumor indications.
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Source: prnewswire
