Japan Dose Regimen Study of AZD1656 in Japanese Type 2 Diabetes Mellitus Patients

Inclusion Criteria: * women of non-childbearing potential. * Provision of informed consent prior to any study specific procedures * Naïve T2DM patients with HbA1c ≥ 7.5% but ≤ 10% or T2DM Patients treated with one or two oral anti-hyperglycaemic agent(s) with HbA1c ≥ 7.5% but ≤ 9.5% at enrolment visit (Visit1) Exclusion Criteria: * Clinically relevant medical history or concurrent disease such as cardiovascular disease, renal disease, hepatic disease and haematological disease. * The investigator(s) judged that the Subject should not participate in the study according to screening test or medical history. * Participation in another clinical trial and/or intake of another investigational drug within the last 30 days prior to enrolment visit