Combination Study of GSK1120212 With Gemcitabine in Subjects With Solid Tumors

Subjects will be enrolled using a dose-escalation procedure in which the initial cohort receives a fraction of the GSK1120212 dose that achieved a dose limiting toxicity in a previous study and the recommended dose of gemcitabine. Escalation will proceed until the maximum tolerated doses are identified. These doses will be selected based on emerging safety data. Confirmation of the tolerability of the Recommended Phase II Dose (RP2D) will be explored in approximately 12 subjects. Subjects will continue on treatment until treatment discontinuation criteria are met (disease progression, intercurrent illness, adverse event or consent withdrawal).