33. CheckMate 238: RFS in Prespecified Groups
Weber. NEJM. 2017;377:1824. Slide credit: clinicaloptions.com
Subgroup
Events/Patients Unstratified
HR (95% CI)
Unstratified HR
(95% CI)Nivo 3 mg/kg Ipi 10 mg/kg
Overall Overall 154/453 206/453 0.66 (0.53-0.81)
Age < 65 yrs 106/333 147/339 0.65 (0.51-0.84)
≥ 65 yrs 48/120 59/114 0.66 (0.45-0.97)
Sex Male 99/258 133/269 0.68 (0.53-0.88)
Female 55/195 73/184 0.63 (0.44-0.89)
Stage IIIB 41/163 54/148 0.67 (0.44-1.00)
IIIC 79/204 109/218 0.65 (0.49-0.87)
IV M1a-M1b 25/62 35/66 0.63 (0.38-1.05)
IV M1c 8/20 8/21 1.00 (0.37-2.66)
Not reported 1/2 0/0
Ulceration in stage III Absent 58/201 94/216 0.59 (0.42-0.82)
Present 60/153 64/135 0.73 (0.51-1.04)
Not reported 2/15 5/15 0.39 (0.07-2.00)
Lymph node involvement
in stage III
Microscopic 41/125 55/134 0.71 (0.47-1.07)
Macroscopic 72/219 101/214 0.62 (0.46-0.84)
Not reported 7/25 7/18 0.60 (0.21-1.72)
PD-L1 status < 5%/indeterminate 123/300 149/299 0.71 (0.56-0.90)
≥ 5% 31/152 57/154 0.50 (0.32-0.78)
BRAF status Mutation 63/187 84/194 0.72 (0.52-1.00)
No mutation 67/197 105/214 0.58 (0.43-0.79)
Not reported 24/69 17/45 0.83 (0.45-1.54)
Nivolumab Ipilimumab
0 1 2
34. KEYNOTE-054: Adjuvant Pembrolizumab vs Placebo for
Stage III Melanoma
Randomized, double-blind phase III study
Coprimary endpoints: RFS in ITT population, RFS in PD-L1+ subgroup
Secondary endpoints: DMFS, OS, safety, QoL
Slide credit: clinicaloptions.comEggermont. NEJM. 2018;378:1789.
Patients with resected
high-risk stage IIIA, B, C
melanoma
(N = 1019)
Pembrolizumab
200 mg IV Q3W*
(n = 514)
Placebo
IV Q3W*
(n = 505)
*Patients with recurrence eligible for crossover
or repeat treatment with pembrolizumab.
Treatment administered 18 doses
(~ 1 yr) or until recurrence,
unacceptable toxicity, or withdrawal
62. *Patients were followed for disease recurrence until the first recurrence and thereafter for survival. †The study will be
considered complete and final OS analysis will occur when ~70% of randomized patients have died or are lost to follow-up.
‡New primary melanoma considered as an event.
COMBI-AD: Adjuvant Dabrafenib + Trametinib for
Stage III Melanoma With BRAF V600 Mutation
Randomized, double-blind phase III study
Coprimary endpoints: RFS
Secondary endpoints: OS, DMFS, FFR, safety
Slide credit: clinicaloptions.comLong. NEJM. 2017;377:1813.
Patients with completely
resected stage III melanoma
with BRAF V600E/K
mutation; ECOG PS 0/1; no
prior radiotherapy or
systemic therapy
(N = 870)
Dabrafenib 150 mg PO BD +
Trametinib 2 mg PO QD
(n = 438)
Placebo
(n = 432)
Patients treated for
12 mos or until
recurrence,
unacceptable toxicity,
withdrawal, or death
65. COMBI-AD: RFS in Prespecified Subgroups
Slide credit: clinicaloptions.comLong. NEJM. 2017;377:1813.
Events/Patients, n/N
Subgroup D + T Placebo
BRAF V600K 16/41 19/37
BRAF V600E 150/397 229/395
Male 92/243 144/239
Female 73/195 104/193
Age < 65 yrs 135/353 201/359
Age ≥ 65 yrs 31/85 47/73
Disease stage IIIA 15/83 23/71
Disease stage IIIB 64/169 110/187
Disease stage IIIC 84/181 111/166
Micrometastasis 39/152 72/157
Macrometastasis 61/158 101/161
Micrometastasis and ulceration 24/64 47/79
Micrometastasis and no ulceration 15/87 25/78
Macrometastasis and ulceration 23/58 42/58
Macrometastasis and no ulceration 38/100 57/101
1 nodal metastatic mass 58/177 93/183
2-3 nodal metastatic masses 57/158 94/150
≥ 4 nodal metastatic masses 40/73 50/72
Favors D + T Favors Placebo
0.51
0.37
0.52
0.51
0.33
0.43
0.49
0.43
0.44
0.45
0.50
0.44
0.38
0.51
0.55
0.43
0.48
0.54
HR
0.01 1.00 10.000.10
66. *Prespecified significance boundary (P=0.000019).
COMBI-AD: OS at First Interim Analysis
Slide credit: clinicaloptions.comLong. NEJM. 2017;377:1813.
97%
91%
86%
94%
83%
77%
P = .0006
1.0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Mos
PatientsAlive(%)
0 22 2414 18 20166 10 1282 4 34 3626 30 3228 46 4838 42 4440 52 5450
D + T
Placebo
Total
438
432
Event
60
93
HR (95% CI)
0.57 (0.42-0.79)
1.00
Dabrafenib + trametinib
Placebo
67. *Prespecified significance boundary (P=0.000019).
COMBI-AD: Safety Summary
Slide credit: clinicaloptions.comLong. NEJM. 2017;377:1813.
AEs, %
Dabrafenib + Trametinib
(n = 435)
Placebo
(n = 432)
Any Grade Grade 3/4 Any Grade Grade 3/4
Any AE
Pyrexia
Fatigue
Nausea
Headache
Chills
Diarrhea
97
63
47
40
39
37
33
41
5
4
1
1
1
1
88
11
28
20
24
4
15
14
< 1
< 1
0
0
0
< 1
AEs leading to dose interruption 66 NA 15 NA
AEs leading to dose reduction 38 NA 3 NA
AEs leading to d/c of study regimen 26 NA 3 NA
68. Hauschild A, JCO, 2018
Longer Follow-Up Confirms Relapse-Free Survival Benefit With Adjuvant Dabrafenib Plus Trametinib in
Patients With Resected BRAF V600–Mutant Stage III Melanoma - COMBI-AD Trial
Weibull mixture cure-rate model
69. Resected stage III or
IV melanoma
Stage
IV
Nivo
Stage III
Nivo
BRAFwt
Pembro
mBRAF
Nivo PembroDabr/Tram
Stage IIIB-D
70. Resected stage III or
IV melanoma
Stage
IV
Nivo
Stage III
Nivo
BRAFwt
Pembro
mBRAF
Nivo PembroDabr/Tram
Stage IIIB-D
Pembrolizumab not
approved for adjuvant
therapy in Colombia
71. Conclusions
• For stage III or resected stage IV
• Adjuvant (wtBRAF)
• Nivolumab or Pembrolizumab for HR Stage III
• Nivolumab for R0 resected Stage IV
• Adjuvant Mutated BRAF
• May consider Dabrafenib + Trametinib