Safety and Efficacy of Cryoablation Combined With Radiation Therapy for the Palliation of Painful Bone Metastases

For cryoablation in the palliation of painful bone metastases, subject preparation, anesthesia, intra-operative monitoring, and postoperative management are identical to those of standard cryoablation routinely performed at all clinical centers participating in this study and are at the discretion of the investigator.

Radiation therapy is usually performed with 6-18 Megavolt photons from a linear accelerator. The proposed dose and frequency of radiation for this protocol are: 8 Gray in 1 fraction, 30 Gray in 10 fractions, or 37.5 Gray in 15 fractions. These proposed doses or other doses will be prescribed at the discretion of the investigator. It is anticipated that subjects will begin the radiation therapy approximately within one to three weeks after the cryoablation procedure. The doses and frequency of the radiation treatment will be collected as well as toxicities.