TABLE 3

Imaging Response After 223RaCl2 Therapy

ResponseBaseline–3 cycles (n = 52)Baseline–EOT* (n = 32)
BSI response†
 Stable or decrease23 (44)19 (59)
 Increase29 (56)13 (41)
No. of lesions on bone scintigraphy†,‡
 Stable29 (56)12 (38)
 Increase (≥2 new lesions)23 (44)20 (63)

  • ↵* Only patients with ≥4 completed cycles were included.

  • ↵† Reported as numbers of patients, with percentages in parentheses.

  • ↵‡ Imaging criteria for progression were those of PCWG2.