Table 2.
Prognostic subgroup | All patients | Cobimetinib + vemurafenib | Vemurafenib monotherapy | Dacarbazine | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
N (events) | ppOS, median, mo (95% CI) | 3-year ppOS, % (95% CI) | N (events) | ppOS, median, mo (95% CI), | 3-year ppOS, % (95% CI) | N (events) | ppOS, median, mo (95% CI) | 3-year ppOS, % (95% CI) | N (events) | ppOS, median, mo (95% CI) | 3-year ppOS, % (95% CI) | |
Normal LDH + stage IIIC/M1a/M1b | 240 (170) |
11.2 (9.7–14.0) |
23.1 (17.3–28.9) |
41 (28) |
10.5 (5.8–18.2) |
23.1 (8.8–37.5) |
129 (88) |
10.6 (7.1–14.9) |
23.8 (15.5–32.1) |
70 (54) |
13.3 (10.2–17.5) |
22.8 (12.6–32.9) |
Normal LDH + stage M1c + ppRx IT/TT | 98 (74) |
12.2 (10.3–16.1) |
23.4 (14.5–32.3) |
21 (14) |
14.4 (6.9–33.1) |
21.7 (0.0–44.2) |
50 (39) |
12.4 (10.3–18.4) |
22.3 (10.3–34.3) |
27 (21) |
11.8 (8.5–18.4) |
24.4 (7.8–41.1) |
Normal LDH + stage M1c + ppRx other + ECOG PS at PD 0 | 87 (72) |
8.2 (6.0–10.6) |
6.8 (0.7–13.0) |
19 (13) |
8.5 (3.2–21.4) |
8.6 (0.0–24.4) | 53 (45) |
7.7 (5.5–13.2) |
6.0 (0.0–13.6) |
15 (14) |
8.1 (5.8–14.1) |
6.7 (0.0–19.3) |
Normal LDH + stage M1c + ppRx other + ECOG PS at PD > 0 | 77 (71) |
3.6 (2.6–4.6) |
4.5 (0.0–9.4) |
11 (10) |
3.2 (1.3–5.4) |
0.0 (0.0–0.0) |
45 (41) |
4.1 (3.2–6.2) |
5.7 (0.0–13.0) |
21 (20) |
3.0 (1.6–8.3) |
4.8 (0.0–13.9) |
Elevated LDH (≤ 2 × ULN) + ppRx IT/TT | 79 (67) |
8.1 (6.7–12.9) |
11.4 (3.7–19.2) |
19 (17) |
9.2 (3.4–17.1) |
10.5 (0.0–24.3) |
42 (34) |
9.6 (7.0–17.2) |
14.1 (2.8–25.5) |
18 (16) |
6.6 (4.3–15.3) |
11.1 (0.0–25.6) |
Elevated LDH (≤ 2 × ULN) + ppRx other | 214 (186) |
4.2 (3.5–5.0) |
5.0 (1.1–8.8) |
44 (35) |
5.5 (4.1–11.9) |
8.4 (0.0–18.9) |
113 (95) |
4.1 (2.9–4.9) |
8.6 (2.8–14.3) |
57 (56) |
4.0 (3.0–5.4) |
0.0 (0.0–0.0) |
Elevated LDH (> 2 × ULN) | 160 (150) |
2.3 (1.8–2.7) |
2.7 (0.0–5.5) |
33 (29) |
2.4 (1.5–3.6) |
NE (NE–NE) |
93 (89) |
2.4 (1.8–3.0) |
2.5 (0.0–5.8) |
34 (32) |
1.8 (1.2–3.3) |
NE (NE–NE) |
CI confidence interval, ECOG PS Eastern Cooperative Oncology Group performance status, IT immunotherapy, LDH lactate dehydrogenase, NE not estimable, PD progressive disease, ppOS postprogression overall survival, ppRx postprogression treatment, TT targeted therapy, ULN upper limit of normal