On September 23, 2021 Immunocore Holdings Plc (Nasdaq: IMCR), a late-stage biotechnology company pioneering the development of a novel class of T cell receptor (TCR) bispecific immunotherapies designed to treat a broad range of diseases, including cancer, infection and autoimmune disease, reported that data from a phase 3 randomized trial comparing tebentafusp (IMCgp100) with investigator’s choice in first-line metastatic uveal melanoma (mUM) has been published in The New England Journal of Medicine (NEJM) (Press release, Immunocore, SEP 23, 2021, View Source [SID1234590238]).
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The paper concluded that tebentafusp is the first systemic treatment to show a survival benefit in mUM and should become a new treatment option for this poor prognosis disease.
"The publication of these phase 3 data in a leading peer-reviewed scientific publication like NEJM demonstrates the significance of Immunocore’s work in the field of TCR therapy," said Bahija Jallal, Chief Executive Officer of Immunocore. "This further validates the potential of tebentafusp to provide a much needed treatment option for patients with metastatic uveal melanoma, making a meaningful difference to patients’ lives. In addition, we believe these data show the broader potential of Immunocore’s TCR technology for the treatment of other solid tumors."
Results from the randomized, open-label, phase 3 trial of tebentafusp vs. investigator’s choice in previously untreated HLA-A*02:01-positive patients with mUM demonstrated a statistically significant and clinically meaningful improvement in overall survival (OS) as a first-line treatment in mUM. The OS Hazard Ratio (HR) in the intent-to-treat population favored tebentafusp, HR=0.51 (95% CI: 0.37, 0.71); p< 0.0001, over investigator’s choice (82% pembrolizumab; 12% ipilimumab; 6% dacarbazine). Treatment-related adverse events were manageable and consistent with the proposed mechanism.
Tebentafusp has been granted Breakthrough Therapy Designation, Fast Track designation and orphan drug designation by the U.S. Food and Drug Administration (FDA) and Promising Innovative Medicine (PIM) designation under the UK Early Access to Medicines Scheme for metastatic uveal melanoma. Immunocore’s biologics license application for approval of tebentafusp for the treatment of HLA-A*02:01-positive adult patients with metastatic uveal melanoma was recently accepted by the FDA. In addition, the European Medicine Agency (EMA)’s Committee for Medicinal Products for Human Use (CHMP) accepted Immunocore’s Marketing Authorisation Application (MAA).