Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication Use of an investigational product within 30 days or 5 half-lives, whichever is longer, preceding Study Day 0. Treatment with any investigational drug within 30 days or 5 half-lives of the investigational drug, whichever is longer Any investigational drug within 30 days or five half-lives (whichever is longer) preceding the first dose of SB-485232 Use of an investigational drug outside this study within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study medication. Use of an investigational product (IP) within 30 days or 5 half-lives, whichever is longer, preceding Study Day 0. Use of an investigational drug within 14 days or five half-lives (whichever is longer) preceding the first dose of study drug. Use of an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study drug Use of any investigational drug within 28 days or 5 half-lives, whichever is longer, preceding enrollment Administration of any investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study treatment Investigational drug; 30 days or five half-lives, whichever is longer, from last dose Any investigational drug therapy less than 28 days or 3 half-lives (whichever is longer) prior to first dose of study treatment Administration of an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study treatment Administration of an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study treatment. Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of investigational product (eltrombopag/placebo) Treatment with an investigational drug within 30 days or 5 half lives, whichever is longer, preceding the first dose of study medication. Administration of an investigational study treatment within 28 days or 5 half-lives, whichever is longer, preceding the first dose of study treatment(s) in this study Use of any investigational drug within 28 days or 5 half-lives, whichever is longer, preceding enrollment; for the purposes of this study, bevacizumab will not be considered investigational therapy Used an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of study medication. Used an investigational drug within 30 days or 5 half-lives, whichever is longer, preceding the first dose of protocol treatment; Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication Use of any investigational drug within 30 days or 5 half-lives, whichever is longer, preceding enrollment