A phase II/III, randomised, two-arm comparison of maintenance lapatinib versus placebo after firrst-line chemotherapy in patients with HER1 and/or HER2 over expressing locally advanced or metastatic bladder cancer.

The main objective of the study is to compare progression-free survival (PFS) in patients with HER1 and/or HER2 over expressing stage IV bladder cancer who have been randomised to maintenance therapy with lapatinib or placebo following first-line chemotherapy