On June 17, 2024 Evaxion Biotech A/S (NASDAQ: EVAX) ("Evaxion" or the "Company"), a clinical-stage TechBio company specializing in developing AI-Immunology powered vaccines, reported publication of data from its Phase 1 dose escalation study of its lead personalized cancer vaccine candidate, EVX-01, for metastatic melanoma (Press release, Evaxion Biotech, JUN 17, 2024, View Source [SID1234644383]). The study results, published in the Journal for ImmunoTherapy of Cancer, demonstrated that eight out of 12 patients (67%) experienced objective clinical responses (ORR) with six partial and two complete responses. Further, EVX-01 immunization did not induce vaccine-related serious adverse events in patients co-administered with anti-PD1 therapy.
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The EVX-01 cancer vaccine is designed to target neoantigens – antigenic sequences derived from cancer mutations – that are displayed on the surface of cancer cells, allowing the immune system to recognize, attack and eliminate the malignant cells. Since the neoantigen tumor profiles vary from one cancer patient to another, the EVX-01 cancer vaccine is truly personalized and tailored to the unique characteristics of each patient’s tumor and immune system profile. This represents a novel treatment paradigm with potential broad application in cancer therapy.
At this year’s ASCO (Free ASCO Whitepaper) annual meeting, the Company presented comprehensive immune data from its ongoing EVX-01 Phase 2 study, with 71% of the administered neoantigens inducing a specific T-cell response. Furthermore, a positive correlation between the neoantigen prediction score assigned by AI-Immunology and the reported induced immune response confirmed the Phase 1 study findings and further substantiated the predictive power of Evaxion’s AI platform.
"This publication provides a clear conclusion to our Phase 1 study, with peer-reviewed validation of our reported outcomes. We are very impressed with EVX-01 achieving a 67% objective response rate in the trial. This is encouraging as it verifies a true reduction in tumor burden following dosing and compares favorably with historical data from anti-PD-1 monotherapy trials. With the encouraging data from our ongoing Phase 2 study of EVX-01 presented at this year’s annual ASCO (Free ASCO Whitepaper) meeting, we are on track to report our one-year readout in the third quarter of this year," said Christian Kanstrup, CEO of Evaxion.
For more information about the recent EVX-01 Phase 2 immune data presented at ASCO (Free ASCO Whitepaper), please visit our recent press release.
About EVX-01 Phase 2 Clinical Trial
EVX-01 is Evaxion’s lead clinical asset and constitutes a peptide-based personalized cancer vaccine. The ongoing Phase 2 clinical study is a self-sponsored, open-label, single-arm, multi-center trial carried out in collaboration with Merck Sharp & Dohme LLC, together with leading principal investigators and research centers from Italy and Australia. It aims to evaluate the efficacy and safety of EVX-01 vaccination in combination with the anti-PD1 treatment pembrolizumab (more commonly known as KEYTRUDA) in treatment-naive patients with metastatic or unresectable malignant stage III or IV melanoma. More information can be accessed under clinical trial ID NCT05309421.