Microbiotica, Cancer Research UK and Cambridge University Hospitals Collaborate in Landmark Cancer Microbiome Study

On June 8, 2020 Microbiotica, a leading player in microbiome-based therapeutics and biomarkers, Cancer Research UK and Cambridge University Hospitals NHS Foundation Trust ("CUH"), reported a collaboration to identify and develop microbiome co-therapeutics and biomarkers for cancer patients receiving immune checkpoint inhibitor therapy (Press release, Microbiotica, JUN 8, 2020, View Source [SID1234560907]).

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The collaboration is based on clinical studies conducted by CUH that evaluate immune checkpoint inhibitor drug response in cancer patients, combined with Microbiotica’s unrivalled microbiome profiling and analysis capability.

Two clinical studies are involved: MELRESIST, a completed class-leading melanoma study, and MITRE, a major landmark study in melanoma, lung and renal cancer, involving 1,800 patients, specifically designed for evaluation of microbiome and other biomarker effects.

The MITRE study will be co-led by Dr Trevor Lawley, Microbiotica’s co-founder and CSO, and Dr Pippa Corrie, Consultant in Medical Oncology at CUH, and will involve comprehensive patient sample collection, data collection and biochemical analysis, with medicines provided by the NHS. Microbiotica will undertake mass culturing of patient gut bacteria, microbiome sequencing and machine learning analysis.

Checkpoint inhibitors have transformed the management of cancer, due to the range of cancers that can be treated and their high levels of efficacy, including complete remission in some cases. However, response rates are low, typically in the range 10-40% of patients. There is therefore a major unmet need for co-therapies to extend the number of responders and for biomarkers to stratify patients for treatment.

Several studies have shown that the gut microbiome plays a critical and causative role in determining which patients respond to these medicines. However thus far they have failed to identify a consistent gut bacterial signature associated with treatment response or resistance. Microbiotica has used its unique microbiome profiling platform with MELRESIST data to identify for the first time a common signature predictive of drug response across multiple melanoma studies, and this is being progressed within the Company. MITRE will take this further by examining the effects in different cancers, a range of immunotherapy regimens, as well as association with side-effects of immunotherapy.

Microbiotica’s platform comprises the world’s leading Reference Genome Database and Culture Collection of gut bacteria, and an unrivalled capability to culture and characterise all gut bacteria from patients at scale. This is complemented by a suite of bioinformatic and machine learning tools that enable the identification of previously undetectable gut bacterial signatures linked to patient phenotype. The Company also has capabilities to develop and take such products to the clinic.

The collaboration will identify specific gut bacterial signatures correlated with drug efficacy and side effects in patients under treatment for melanoma, non-small cell lung cancer and renal cancer. From these signatures, Microbiotica will progress live bacterial products as co-therapies and microbiome biomarkers predictive of immunotherapy response and toxicity into the clinic.