On August 20, 2024 AIM ImmunoTech Inc. (NYSE American: AIM) ("AIM") reported the official print publication of the data analysis from a long-term Early Access Program ("EAP") studying the company’s drug Ampligen (rintatolimod) for the treatment of advanced pancreatic ductal adenocarcinoma ("PDAC") (Press release, AIM ImmunoTech, AUG 20, 2024, View Source [SID1234646003]). The manuscript titled "Rintatolimod in Advanced Pancreatic Cancer enhances Anti-Tumor Immunity through Dendritic Cell-Mediated T Cell Responses," appears in the journal Clinical Cancer Research, one of oncology’s most prestigious journals.

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Ampligen is a dsRNA product candidate that acts via the TLR-3 receptor present on several immune cells, epithelial cells and tumors. Researchers at the Erasmus University Medical Center ("Erasmus MC") found that Ampligen treatment in pancreatic cancer patients enhances peripheral immune activity at the transcriptomic and proteomic levels, particularly involving type 1 conventional dendritic cells (cDC1s) and T cells. Post-Ampligen, the increased peripheral abundance of BTLA+XCR1+ cDC1s and CD4+SELL+ T cells correlated with improved clinical outcomes. Patients with stable disease exhibited pronounced overexpression of genes related to DC and T cell activation. Notably, the expression of immune checkpoints PD-L1 and PD-L2 decreased post-Ampligen across all patients.

"We are grateful to the Erasmus team for their continued contributions to the advancement of Ampligen," said AIM Chief Executive Officer Thomas K. Equels "There remains a large and growing unmet need for safe and effective treatments for pancreatic cancer. This data continues to provide us with further insight into Ampligen’s ability to improve progression-free survival and overall survival and enables us to identify cancer patients who might benefit more from Ampligen treatment than they would from other known cancer treatments."

Prof. Casper H.J. van Eijck, MD, PhD, Pancreato-biliary Surgeon at Erasmus MC and co-author of the published paper, added, "We continue to be encouraged by this data which suggests Ampligen infusions modulate PD-L1 and PD-L2 expression in the tumor microenvironment, while at the same time they upregulate Ki67+CD4+ and Ki67+CD8+ T-cells. We continue to make progress in the ongoing DURIPANC trial, which looks at the combination effect of Ampligen and AstraZeneca’s durvalumab and look forward to continuing evaluation of its potential for the treatment of pancreatic cancer."

In addition to the published manuscript, further commentary discussing the potential of Ampligen and two other drugs, referencing findings from the journal article, were published. Key highlights from the additional commentary include:

Ampligen has been found to be also safely used through a systemic route.
Interesting increases in cDC1 numbers and cytokines governing T-cell activation and migration are found to be upregulated.
Researchers detected an important enrichment of B-cell numbers in peripheral blood from patients treated with Ampligen.
B-cells correlated with long-term (>1 year) survival in a previous study.
AIM is currently evaluating Ampligen as a therapy for metastatic pancreatic ductal adenocarcinoma in the Phase 1b/2 DURIPANC clinical study (NCT05927142) and as a therapy for locally advanced pancreatic adenocarcinoma in the Phase 2 AMP-270 clinical study (NCT05494697).