Participants will receive oral capecitabine (830 milligrams per meter-squared [mg/m^2]) twice daily (BID) as intermittent treatment (Days 1 to 21 every 4 weeks [q4w]) along with IV infusion of gemcitabine (1000 mg/m^2) once weekly as intermittent treatment (4-week cycles of 3-week treatment period and 1-week rest period).

Capecitabine will be administered orally at 830 mg/m^2 BID (equivalent to a total daily dose of 1660 mg/m^2) as intermittent treatment (given days 1 to 21 q4w).