- Symptomatic metastatic brain or meningeal tumors unless the subject is >3 months from definitive therapy, has no evidence of tumor growth on an imaging study within 4 weeks prior to study entry, and is clinically stable with respect to the tumor at the time of study entry. Subjects must not be on acute steroid therapy or taper off steroid therapy (chronic steroid therapy is acceptable provided that the dose is stable for 4 weeks prior to study entry and following screening CT / MRI scan). Subjects with neurological symptoms should undergo a CT / MRI scan of the brain to exclude new or progressive brain metastases. Spinal cord metastasis is acceptable