- Patients with either skeletal pain or alkaline phosphatase that is greater than ULN but less than/equal to 2.5 x ULN are eligible for inclusion in the study if a bone scan or positron emission tomography (PET) scan does not demonstrate metastatic disease. Patients with suspicious findings on bone scan or PET scan are eligible if suspicious findings are confirmed as benign by x-ray, magnetic resonance imaging (MRI), or biopsy.