PARIS, FRANCE AND CAMBRIDGE, MASSACHUSETTS, May 18, 2017 – NANOBIOTIX (Euronext: NANO – ISIN: FR0011341205), a late clinical-stage nanomedicine company pioneering new approaches to the treatment of cancer, today announced its first set of clinical data from its immuno-oncology (IO) program, showing the potential ability of NBTXR3 to transform “cold” tumors into “hot” tumors.
Laurent Levy, CEO of Nanobiotix said, “Being able to transform cold tumors into hot tumors is one of the most challenging and promising topics in oncology. This preliminary clinical data indicates that NBTXR3 could play a key role in unlocking this potential. Given NBTXR3’s universal type mode of action and good safety profile, NBTXR3 could change the treatment landscape in numerous solid tumor cancers.”
Many tumors exhibit little or no response to therapies targeting the immune system and are considered “cold”. The explanation for the lack of response in its simplest form is a lack of immunogenicity. The ability of NBTXR3 to generate intratumoral immunogenic cell death (ICD) could be a key to significantly increase the number of patients who can engage their immune system to fight their cancer.

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To undertake this research, Nanobiotix used the available patient samples from its more advanced indication of soft tissue sarcoma -- a typical “cold” tumor. These findings demontrated that NBTXR3 plus radiotherapy induces a specific adaptive immune pattern, which could potentially contribute to converting a “cold” tumor into a “hot” tumor. In this study, radiotherapy alone did not show any impact on triggering adaptive immune response.
Key Results
Specific adaptive immune pattern induced by NBTXR3 when exposed to radiation therapy in Soft Tissue Sarcoma (STS) patients (ASCO #e14615)
Jérôme Galon, Marick Laé, Zsuzsanna Papai, Philippe Rochaix, Laszlo Csaba Mangel, Bernhard Mlecnik, Fabienne Hermitte, Zoltan Sapi, Martine Delannes, Tamas Tornoczky, Anne Vincent-Salomon, Sylvie Bonvalot; INSERM, Paris, France; Institut Curie, Paris, France; Magyar Honvedseg Egeszsegugyi Kozpont, Budapest, Hungary; Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France; Pecs University, Pecs, Hungary; HalioDX, Marseille, France; Semmelweis University, Budapest, Hungary.
In this study, tumors from the ongoing two-arm Phase II/III clinical trial were examined both pre- and post- treatment in patients with locally advanced soft tissue sarcoma who had received either NBTXR3 with radiotherapy (14 patients) or radiotherapy alone (12 patients).