Cryoablation for palliation of painful bone metastases: The motion multicenter study

Jack W. Jennings, J. David Prologo, Julien Garnon, Afshin Gangi, Xavier Buy, Jean Palussi È Re, A. Nicholas Kurup, Matthew Callstrom, Scott Genshaft, Fereidoun Abtin, Ambrose J. Huang, Jason Iannuccilli, Frank Pilleul, Charles Mastier, Peter J. Littrup, Thierry de Baère, Frédéric Deschamps

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Purpose: To assess the clinical effectiveness of cryoablation for palliation of painful bone metastases. Materials and Methods: MOTION (Multicenter Study of Cryoablation for Palliation of Painful Bone Metastases) ( NCT 02511678) was a multicenter, prospective, single-arm study of adults with metastatic bone disease who were not candidates for or had not benefited from standard therapy, that took place from February 2016 to March 2018. At baseline, participants rated their pain using the Brief Pain Inventory-Short Form (reference range from 0 to 10 points); those with moderate to severe pain, who had at least one metastatic candidate tumor for ablation, were included. The primary effectiveness endpoint was change in pain score from baseline to week 8. Participants were followed for 24 weeks after treatment. Statistical analyses included descriptive statistics and logistic regression to evaluate changes in pain score over the postprocedure follow-up period. Results: A total of 66 participants (mean age, 60.8 years ± 14.3 [standard deviation]; 35 [53.0%] men) were enrolled and received cryoablation; 65 completed follow-up. Mean change in pain score from baseline to week 8 was-2.61 points (95% CI:-3.45,-1.78). Mean pain scores improved by 2 points at week 1 and reached clinically meaningful levels (more than a 2-point decrease) after week 8; scores continued to improve throughout follow-up. Quality of life improved, opioid doses were stabilized, and functional sta-tus was maintained over 6 months. Serious adverse events occurred in three participants. Conclusion: Cryoablation of metastatic bone tumors provided rapid and durable pain palliation, improved quality of life, and offered an alternative to opioids for pain control.

Original languageEnglish
Article numbere200101
JournalRadiology: Imaging Cancer
Issue number2
StatePublished - Mar 2021


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