On March 26, 2019 NANOBIOTIX (Euronext: NANO – ISIN: FR0011341205 – the ‘‘Company’’), a clinical-stage nanomedicine company pioneering new approaches to the treatment of cancer, reported that the Company has clarity on its regulatory pathway in the treatment of Head and Neck cancers for first-in-class radioenhancer NBTXR3 (Press release, Nanobiotix, MAR 26, 2019, View Source [SID1234534630]).
The announcement follows pre-IND feedback from the US FDA received on March 18, 2019.

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Stage III and IV Head and Neck cancers include large primary tumors which may invade underlying structures and/or spread to regional nodes. Treatment of these locally advanced forms of the disease—which makes up more than 50% of all Head and Neck cancers—requires aggressive, concerted measures that often remain a clinical challenge with an estimated 5-year survival rate of 50% with the current standard of care.

Within the Stage III and IV Head and Neck cancers patient population, the Company targets a subpopulation of patients, who have a higher risk of recurrence, or a poorer prognosis as they have an inability to receive cisplatin, the frontline chemotherapy drug for advanced Head and Neck cancers. Additionally, the localization of the tumor focuses on oropharynx, hypopharynx, and oral cavity – representing the majority of Head and Neck cancers.

Based on US FDA feedback, the Company plans to design an Overall Survival (OS)-based, randomized, event-driven Phase II/III clinical trial. 50% of patients will receive standard of care radiotherapy combined with NBTXR3 while the other 50% will receive radiotherapy in combination with cetuximab. The expected total number of patients to participate in this global clinical trial is approximately 600, and an efficacy interim analysis is planned.

Notably, the US FDA has not objected to the use of the data from the dose-escalation phase of the Company’s European Phase I clinical trial in elderly and frail patients with locally advanced Head and Neck cancers as well as the Company’s current CMC (chemical, manufacturing and control) development plan.

The Company plans to initiate its global clinical trial authorization process with US FDA in 2H2019.-Ends

About NBTXR3

NBTXR3 is a first-in-class product candidate designed to destroy tumors and metastasis when activated by radiotherapy. NBTXR3 has a high degree of biocompatibility and requires one single administration before the whole radiotherapy treatment. Nanobiotix believes NBTXR3 has the ability to fit into current worldwide standards of radiation care. Nanobiotix’s broad clinical program includes 7 clinical trials. In June 2018, Nanobiotix established human proof of concept for this first-in-class product candidate in its Soft Tissue Sarcoma (STS) Phase III clinical trial. 2 NBTXR3 is actively being studied in head and neck cancer with locally advanced squamous cell carcinoma of the oral cavity or oropharynx in elderly and frail patients who are unable to receive chemotherapy or cetuximab and have very limited therapeutic options. Promising results from these clinical studies have been observed from the ongoing Phase I/II trial regarding the local control of tumors. Nanobiotix is also running an Immuno-Oncology development program. In the United States, Nanobiotix has received approval from the US FDA to launch a clinical study of NBTXR3 activated by radiotherapy in combination with anti-PD1 antibodies in lung, and head and neck cancer patients (head and neck squamous cell carcinoma and non-small cell lung cancer). The other ongoing NBTXR3 trials are treating patients with liver cancers (hepatocellular carcinoma and liver metastasis), locally advanced or unresectable rectal cancer in combination with chemotherapy, head and neck cancer in combination with concurrent chemotherapy, and prostate adenocarcinoma. The first market authorization process (CE Marking) is ongoing in Europe in the STS indication.