Hafnium

2018 – ASCO GI – A phase I/II trial of NBTXR3 nanoparticles activated by SBRT in the treatment of liver cancers

The physical mode of action of NBTXR3 may represent a breakthrough approach for the local treatment of liver cancers, as it does not engage liver and renal functions, i.e. nanoparticles are not metabolized and not excreted by kidney. A phase I/II trial has been implemented for the treatment of hepatocellular carcinoma and liver metastasis. […]

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2017 – Abstract – THNO – NBTXR3 in combination with IMRT in patients with locally advanced HNSCC

At the 2017 THNO in Nice, France, prof. C. Le Tourneau presented preliminary results of NBTXR3 in patients suffering from HNSCC. The treatment was associated with a positive safety profile, and preliminary effiacy evaluation, the local Complete Response rate is 83 % (dose level15% and 22%), with a duration of response of 22 months. […]

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2017 – Abstract SITC Conference Maryland – Clinical

Soft tissue sarcoma (STS) is a large and heterogeneous group of malignant mesenchymal neoplasms characterized by a strong tendency toward local recurrence and metastatic spreading. Consistently, the immune microenvironment in sarcomas is highly variable. A new class of material with high electron density, hafnium oxide, was designed at the nanoscale to efficiently absorb ionizing radiation […]

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2017 – Abstract Conference Immunotherapy Radiotherapy Combinations NYC

Hafnium oxide, an electron-dense material, was designed at the nanoscale to increase the radiation dose deposited from within the cancer cells: “Hot spot” of energy deposit where the nanoparticles are when exposed to radiation therapy (RT). Preclinical studies have demonstrated increase of cancer cells killing in vitro and marked antitumor efficacy in vivo with presence of these nanoparticles […]

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2018 – AACR – Activation of the cGAS-STING pathway by NBTXR3

Recent studies reported that radiotherapy could activate the cGAS-STING pathway, which plays a fundamental role in the immune response to cytoplasmic DNA, by activation of the transcriptional factor IRF3, leading to expression of interferon-beta. Moreover, cGAS-STING activation appears to be an important component for tumor resident Antigen-Presenting Cells activation, a crucial step for induction of CD8+ T cell response against tumor derived antigens. […]

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2017 – Abstract SITC Conference Maryland – Non Clinical

Hafnium oxide, an electron-dense material, was designed at the nanoscale to increase the radiation dose deposited from within the cancer cells: “Hot spot” of energy deposit where the nanoparticles are when exposed to radiation therapy (RT). Preclinical studies have demonstrated increase of cancer cells killing in vitro and marked antitumor efficacy in vivo with presence of these nanoparticles […]

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2017 – Immunotherapy Workshop

Radiotherapy (RT) has proven its ability to function like an in-situ vaccine, showing potential for successful combination with immunotherapeutic agents. Hafnium oxide nanoparticle (HfO2-NP), undergoing clinical trials for enhancing RT, was designed as high electron density material at the nanoscale. HfO2-NPs are taken up by cancer cells and, when exposed to RT, locally increase the radiation dose deposit, triggering more cancer cells death when compared to RT. We hypothesized that HfO2-NP+RT could trigger an enhanced immune response when compared to RT, both in preclinical and clinical settings.

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2011 – AACR Abstract – NBTXR3 radioenhancement and anti-tumor effect in vitro – Magiorella et al.

Local and systemic control of Soft Tissue Sarcoma (STS) remains a clinical challenge. Radiation therapy is part of the standard of care of STS. The narrowness of its therapeutic window represents the main concern for different clinical settings. Thus, local delivery of radiation doses is critical to ensure optimal benefit-risk ratio. NBTXR3, biocompatible hafnium oxide nanoparticles were designed as therapeutics to be activated by ionizing radiation to achieve tumor control by enhancement of local energy deposition.

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