Table 1 Clinical characteristics of patients at baseline

From: Cryoablation and post-progression immune checkpoint inhibition in metastatic melanoma: a phase II trial

Baseline characteristics

All patients (N = 18)

Age: median (range), years

63.5 (47–90)

Sex, n (%)

 Male

10 (55.5)

 Female

8 (44.5)

ECOG performance status, n (%)

 0–1

14 (78)

 2

4 (22)

Lines of therapy prior to cryo (including ICI at time of cryo)a

 1

7 (39)

 2

5 (28)

 ≥3

6 (33)

Type of ICI at time of ablation

 PD-1 inhibition (pembrolizumab, nivolumab)

18 (100)

Presence of CNS metastasis

Yes

4 (22)

No

14 (78)

LDH elevated above baseline prior to cryo

Yes

9 (50%)

No

9 (50%)

Best response to ICI prior to ablation

Partial response

2 (12)

Stable disease

8 (47)

Progressive disease

7 (41)

Duration of ICI prior to cryoablation

105 days (55–1250 days)

  1. CNS central nervous system, ICI immune checkpoint inhibitor, LDH lactate dehydrogenase
  2. aIncluding adjuvant indication: IFN in 3, ipilimumab in 2