ABC-04 a Study of Cisplatin, Gemcitabine and Selumetinib in Patients With Advanced Biliary Tract Cancer

The starting dose of selumetinib will depend on the cohort. The first dose of selumetinib to be studied will be 75 mg twice daily (bd). Selumetinib will be taken every day (continuously) either once or twice a day, depending on the dose. Treatment with selumetinib may continue until disease progression.

gemcitabine: taken in combination with cisplatin will be given at 1000 mg/m\*2 in 250 - 500 ml 0.9% saline over 30 minutes by intravenous infusion on days 1, and 8 of each 21-day cycle for eight cycles in total

cisplatin: 25 mg/m\*2 in 1000 ml 0.9% saline given over 1 hour followed by 500mls 0.9% saline over 30 minutes followed by gemcitabine on days 1, and 8 of each 21-day cycle for eight cycles in total