Validation of dabrafenib-trametinib prognostic groups in patients treated with vemurafenib and cobimetinib for advanced BRAF-mutated melanoma.

Abstract:

:Prognostic groups defined by lactate dehydrogenase concentration and number of organ sites containing metastases have been reported for patients treated with dabrafenib and trametinib for advanced melanoma. We aimed to validate these prognostic groups for patients treated with vemurafenib and cobimetinib in the coBRIM and BRIM-3 clinical studies. Eight hundred nine patients were included, 240 treated with vemurafenib plus cobimetinib and 569 with vemurafenib. For patients treated with vemurafenib and cobimetinib, both overall survival (P < 0.001, c-statistic = 0.72) and progression-free survival (P < 0.001, c-statistic = 0.65) differed markedly between prognostic groups. Two-year progression-free survival ranged from 3 (lactate dehydrogenase ≥2 times the upper limit of normal) to 50% (normal lactate dehydrogenase and ≤3 sites), and two-year overall survival ranged from 7 to 71%. For patients treated with vemurafenib monotherapy, overall survival (P < 0.001, c-statistic = 0.66) and progression-free survival (P < 0.001, c-statistic = 0.62) also differed significantly between prognostic groups. In conclusion, prognostic groups identified for patients treated with dabrafenib and trametinib are also applicable to patients treated with vemurafenib and cobimentinib.

journal_name

Melanoma Res

journal_title

Melanoma research

authors

Sorich MJ,Rowland A,Hopkins AM

doi

10.1097/CMR.0000000000000634

subject

Has Abstract

pub_date

2020-06-01 00:00:00

pages

268-271

issue

3

eissn

0960-8931

issn

1473-5636

pii

00008390-202006000-00006

journal_volume

30

pub_type

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