||Professor Gary Middleton
||University of Birmingham
||Bristol Myers Squibb
||Metastatic/Locally Advanced Colorecatal Cancer
An open-label, single arm, phase II, multicentre clinical trial
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|Open to new sites?
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|Anticipated Recruitment end date
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||Early Drug Development (EDD) Team
|Study E-mail Address:
Immuno-oncology is transforming the care of certain patients with cancer. Not all patients respond to these therapies however, and in some common cancers checkpoint blockade has failed to make any real impact. In 2014 there were over 41,000 new cases of colorectal cancer (CRC) in the UK and nearly 16,000 deaths from the disease, making it the second commonest cause of cancer death (Cancer Research UK Cancer Statistics Key Facts).
Previous trials have shown that a small number of colorectal tumours with certain genetic problems identified in the laboratory, known as microsatellite instability, (MSI) respond well to drugs like nivolumab. However, most people with colorectal cancer particularly those with metastatic disease (around 95%) will not have this particular genetic problem in their tumour; these tumours are known as microsatellite stable (MSS) and these drugs do not work as well for these patients. Another immunohistochemistry test has been developed to assess the level of a molecule called class II in colorectal tumours. We think that MSS colorectal tumours with high levels of class II molecules might respond better to nivolumab, in the same way that MSI tumours respond. Class II molecules are the molecules that show abnormal proteins made by cancer cells and the immune system. We estimate that about 1 in 10 people tested, who have MSS tumours, will have a high level of the class II molecule.
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