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Table 2 Response rate to radiotherapy according to the international consensus [19]

From: Comparing conVEntional RadioTherapy with stereotactIC body radiotherapy in patients with spinAL metastases: study protocol for an randomized controlled trial following the cohort multiple randomized controlled trial design

Responders
Complete response Pain score of 0 and stable or reduced OMED
Partial response Pain reduction of 2 points on a 0–10 scale or more and/or OMED reduction by 25% or more
Non-responders
Pain progression Increase of 2 points on a 0–10 scale or more above baseline, and/or OMED increased by 25% or more
Indeterminate response Any response including stable disease that is not captured by complete or partial response or pain progression
  1. OMED daily oral morphine equivalent