Evidence map›Paper›PMID 33861486›Full record

Trial reportThe oncologist2021

Efficacy and Safety of Trametinib in Non-V600 BRAF Mutant Melanoma: A Phase II Study.

Caroline A Nebhan, Douglas B Johnson, Ryan J Sullivan, Roda N Amaria, Keith T Flaherty, Jeffrey A Sosman, Michael A Davies

Open access · bronzeAbstract readClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in The oncologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  14. Successful treatment ofFrontiers in medicine · 2024
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  20. Molecular Pathways and Mechanisms of BRAF in Cancer Therapy.Clinical cancer research : an official journal of the American Association for Cancer Research · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Caroline A NebhanDepartment of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Douglas B JohnsonDepartment of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Ryan J SullivanMassachusetts General Hospital, Boston, Massachusetts, USA.
Roda N AmariaDepartment of Cutaneous Oncology, MD Anderson Cancer Center, Houston, Texas, USA.
Keith T FlahertyMassachusetts General Hospital, Boston, Massachusetts, USA.
Jeffrey A SosmanDepartment of Medicine, Robert H. Lurie Cancer Center, Northwestern University, Chicago, Illinois, USA.
Michael A DaviesDepartment of Cutaneous Oncology, MD Anderson Cancer Center, Houston, Texas, USA.
Massachusetts General Hospital · USThe University of Texas MD Anderson Cancer Center · USVanderbilt University Medical Center · USNorthwestern University · US

Funding

VOLT (Vanderbilt Oncology Training Program)T32CA217834 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Debra L. Friedman, Douglas B Johnson · 2018 to 2026
$2.7M
Predicting and profiling long-term survival after immune checkpoint inhibitionK23CA204726 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI JOHNSON, DOUGLAS B · 2016 to 2020
$756k
Investigating concurrent Ras-pathway inhibition to optimize response to anti-PD-1 therapy in NRAS-mutant melanomaF32CA254070 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI NEBHAN, CAROLINE · 2020 to 2021
$130k
NCI NIH HHS F32 CA254070NCI NIH HHS K23 CA204726NCI NIH HHS T32 CA217834
6 · The paper itself

Abstract

lessons learnedThis study suggests that trametinib has significant clinical activity in non-V600 BRAF mutation and BRAF fusion metastatic melanoma, albeit in a small cohort. All patients with metastatic melanoma should undergo sequencing of the BRAF gene to identify noncanonical BRAF mutations that may indicate benefit from treatment with trametinib.

backgroundNon-V600 BRAF mutations and BRAF fusions in aggregate occur in approximately 5% of all melanomas. Inhibition of the mitogen-activated protein kinase (MAPK) pathway has been implicated as a possible treatment strategy for these patients.

methodsIn this open-label, multicenter, phase II study, patients with advanced melanoma harboring mutations in BRAF outside V600 (non-V600) or BRAF fusions received trametinib 2.0 mg daily. Patients were divided into cohorts based on the intrinsic catalytic activity of BRAF mutation (high, cohort A; low/unknown, cohort B). The primary endpoint was objective response rate (ORR) for patients in cohort A; secondary endpoints included ORR in cohort B, safety, and survival in both treatment arms.

resultsAmong all patients, the ORR was 33% (three of nine patients), including 67% in cohort A and 17% in cohort B. Two patients had stable disease as best response, and six patients had some degree of tumor shrinkage. The median progression-free survival (PFS) was 7.3 months. Treatment-related adverse events occurred in all patients (100%); most (89%) were grade 1-2.

conclusionIn contrast to recently described tumor-agnostic studies in a genetically similar population, trametinib had considerable activity in a small population of patients with melanoma harboring BRAF non-V600 mutations and fusions, providing rationale for sequencing in search of these genomic alterations.

Indexed as

MelanomaSkin NeoplasmsAntineoplastic Combined Chemotherapy ProtocolsHumansImidazolesMutationOximesProtein Kinase InhibitorsProto-Oncogene Proteins B-rafPyridonesPyrimidinonesBRAF protein, humanImidazolesOximesProtein Kinase InhibitorsProto-Oncogene Proteins B-rafPyridonesPyrimidinonestrametinibBRAFFusionMEKMelanomaTrametinib

Identifiers

PMID33861486
PMCPMC8417872
OpenAlexW3155252008

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.