From: SUPR-3D: A randomized phase iii trial comparing simple unplanned palliative radiotherapy versus 3d conformal radiotherapy for patients with bone metastases: study protocol
Approximate sample size required
RINV 60 to 50%
1600
RINV 60 to 40%
400
RINV 60 to 35%
250
RINV 60 to 30%
175
RINV 60 to 20%
90