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ICE Cryoablation Technology

Bone cryoablation

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Overview

Bone is the most common site of metastatic cancer. Bone metastasis are associated with bone pain resulting in significant decreased physical function and quality of life (QOL). External beam radiation therapy is the standard for treatment of patients with painful bone metastases, along with opioids and non-opioid analgesics. Unfortunately, the time to pain relief for radiation therapy is 1-2 months and or many patients the pain can persist after radiation therapy. Cryoablation for painful bone metastases allows for rapid and durable pain palliation.

Patient information

Treating Painful Bone Metastases with Cryoablation: Esther’s Story

See Esther’s journey through her cancer diagnosis and her decision to be treated with cryoablation for painful bone mets.

The MOTION study

Cryoablation for Palliation of Painful Bone Metastases: The MOTION Multicenter Study

This multicenter, prospective, single arm, phase II study examined the impact of the treatment of a painful bone metastatic lesion in each patient.

Study objective

The primary objective was to evaluate the efficacy of cryoablation for pain palliation of bone metastases from baseline to 8 weeks after cryoablation in worst pain in the last 24 hours.
Separate evaluations of ancillary efficacy endpoints were also made through 24 weeks.

Key results

The primary efficacy endpoint of mean change in worst pain in last 24 hours from baseline to week 8 was 2.61 ± 0.43 points (95% CI: -3.45, -1.78) as shown in Figure 1. Clinically meaningful changes from baseline were observed at all time points after week 8. In the completed case analysis (n = 64), mean pain scores improved by 2 points as early as week 1 and continued through week 24 and the 92% of participants achieved palliation (59/64), with median time to maximal pain relief of 39.0 days (95% CI: 43.7, 72.4 days; n = 59). Most participants achieved their maximum palliation by week 1 (33.9%; 20 of 59), week 4 (25.4%; 15 of 59), or week 12 (15.3%; nine of 59).

Change in worst pain in last 24 hours through 24 weeks

Quality of life consistently improved over 6 months (Fig 2). The overall treatment effect was rated “better than at the last visit” by 60.9% (39 of 64) and 30% (11 of 37) of participants at weeks 1 and 24, respectively; treatment effect was rated “worse than at the last visit” by 13% (eight of 64) and 11% (four of 37) participants at weeks 1 and 24, respectively.

Change in quality of live through 24 weeks

MOTION study conclusion

Overall, the data shows a rapid and durable pain relief along with a decrease in MEDD and a corresponding increase in the quality of life for patients.

Resources

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