To assess the effect of Rifampicin on the pharmacokinetics of Selumetinib in Healthy Male Volunteers

Exclusion Criteria

• 1. Subjects of Japanese or non-Japanese Asian ethnicity. 2. Any one parent or grandparent (maternal or paternal) is Japanese or non-Japanese Asian (eg, China, Taiwan, Korea, Philippines, Thailand, Vietnam and Malaysia). Asian Indians are acceptable. 3. Current or past history of central serous retinopathy or retinal vein thrombosis,intra-ocular pressure greater than 21 mmHg or uncontrolled glaucoma. 4. Any clinically relevant abnormal findings in physical examination, hematology, clinical chemistry, urinalysis, vital signs or ECG at baseline in the opinion of the investigator. 5. History of presence of any clinically significant disease or disorder in the opinion of the investigator.