- Patients may have measurable or non-measurable disease. If the outcome for a patient is to be based on response using Response Evaluation Criteria in Solid Tumors (RECIST) criteria, the patient must have at least one measurable lesion that can be accurately measured in at least one dimension and fit one of the following criteria: longest diameter >= 20 mm using conventional techniques or >= 10 mm with spiral computed tomography (CT) scan. The dimensions of all target lesions that will be used to determine objective response along with the date of last measurement and the method of measurement (e.g. physical examination, spiral CT, conventional CT) must be recorded on the enrollment form prior to the patient's first treatment.