 - Patients must have sufficiently recovered grade 1 from any toxicity of prior therapy; the required waiting period between the last dose of the most recent chemotherapy agent and the first dose of eribulin will be determined based on the half-life of the chemotherapy agent; the minimum time between stopping prior therapy and administering the first dose of eribulin should be 3.3 half-lives with the following exceptions: an interval of at least 6 weeks must elapse since treatment with a nitrosourea and at least 4 weeks since the last dose of bevacizumab 