Systemic Therapy Combined with Locoregional Therapy Improved Survival in Oligometastatic Breast Cancer: A Single-Center Retrospective Cohort Study

Table 3

Responses after treatment.

Viable	ST to LRT group ()	LRT to ST group ()	ST alone ()	value
Best response				<0.001
CR	15 (53.6)	28 (63.6)	12 (9.4)
PR	9 (32.1)	10 (22.7)	71 (55.9)
SD	4 (14.3)	6 (13.6)	28 (22.0)
PD	0 (0.0)	0 (0.0)	15 (11.8)
Not evaluated	0 (0.0)	0 (0.0)	1 (0.8)
ORR	24 (85.7)	38 (86.4)	83 (65.4)	0.007

Abbreviations: ST to LRT: systemic therapy followed by locoregional therapy; LRT to ST: locoregional therapy followed by systemic therapy; ST: systemic therapy; CR: complete response; PR: partial response; SD: stable disease; PD: progression disease; ORR: overall response rate.