TriMaster: Study of a DPP4 Inhibitor, SGLT2 Inhibitor and Thiazolidinedione as Third Line Therapy in Patients With Type 2 Diabetes.

The aim of this project is to identify subgroups of patients with type 2 diabetes that respond well or poorly to particular drugs based on particular clinical characteristics such as their weight or kidney function, to enable better targeting of treatment for a particular individual. This study will test 2 hypotheses of drug response supported by routine clinical and trial data. 600 patients with type 2 diabetes who have suboptimal glycaemic control on dual oral therapy will be recruited to a randomised double-blind crossover study of a DPP4 inhibitor, SGLT2 inhibitor and thiazolidinedione. Each patient will take each study drug in addition to their existing treatment for four months at a time. At the end of each treatment the patient\'s glucose control will be measured and information about their experience of the drug will be collected.