Study to Evaluate the Cardiac Safety of TAS-102 in Patients With Advanced Solid Tumors

Inclusion Criteria:

Has provided written informed consent
Has advanced solid tumors (excluding breast cancer) for which no standard therapy exists
Has received no more than 5 prior cancer therapies
ECOG performance status of 0 or 1
Is able to take medications orally
Corrected QT interval using Bazett's correction is no more than 450 msec on resting ECG
Has adequate organ function (bone marrow, kidney and liver)
Women of childbearing potential must have a negative pregnancy test and must agree to adequate birth control if conception is possible. Males must agree to adequate birth control.

Exclusion Criteria:

Has had certain other recent treatment e.g. major surgery, extended field radiation, anticancer therapy, received investigational agent, within the specified time frames prior to study drug administration
Certain serious illnesses or medical condition(s)
Has a family history of unexplained sudden death or long QT syndrome
Has had a documented cardiovascular complication following a fluoropyrimidine-derived treatment
Is a patient for whom it is not technically possible to obtain quality ECG tracings
Is receiving a concomitant drug that is known to affect QT interval or to be arrhythmogenic
Has unresolved toxicity of greater than or equal to CTCAE Grade 2 attributed to any prior therapies
Known sensitivity to TAS-102 or its components
Is a pregnant or lactating female
Refuses to use an adequate means of contraception (including male patients)