M6620 Plus Standard Treatment in Oesophageal and Other Cancer

M6620 is an unlicensed small molecule ATR inhibitor which can be used in combination with DNA damaging agents. In pre-clinical models it has substantial activity when given with DNA damaging drugs or ionising radiation. The clinical agent (M6620) is currently studied in a phase I trial in Oxford and other centres in combination with gemcitabine, cisplatin, gemcitabine/cisplatin and cisplatin/etoposide.

Cisplatin is a platinum based chemotherapy drug licensed to treat a number of different types of cancer. Cisplatin use is not considered standard practice in Stage A2 \& B, therefore Cisplatin is considered an investigational medicinal product for the purpose of this trial.

Capecitabine is a chemotherapy drug licensed to treat a number of different types of cancer, it is a noncytotoxic pre-cursor of the cytotoxic 5-fluourouracil. Capecitabine use is not considered standard practice in Stage A2 \& B, therefore Capecitabine is considered an investigational medicinal product for the purpose of this trial.

Stage A1 uses palliative radiotherapy. Stage B uses definitive radiotherapy.