2. The participant has at least one unidimensional-measurable target lesion [≥ 2 centimeter (cm) with conventional techniques, or ≥ 1 cm by spiral computed tomography (CT) or magnetic resonance imaging (MRI)], as defined by Response Evaluation Criteria in Solid Tumors (RECIST). Tumors within a previously irradiated field will be designated as "nontarget" lesions unless progression is documented or a biopsy is obtained to confirm persistence at least 90 days following completion of radiation therapy