BRAF V600E status may facilitate decision-making on active surveillance of low-risk papillary thyroid microcarcinoma

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023761%3A_____%2F20%3AN0000011" target="_blank" >RIV/00023761:_____/20:N0000011 - isvavai.cz</a>

Result on the web

<a href="https://www.ejcancer.com/article/S0959-8049(19)30780-4/pdf" target="_blank" >https://www.ejcancer.com/article/S0959-8049(19)30780-4/pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

BRAF V600E status may facilitate decision-making on active surveillance of low-risk papillary thyroid microcarcinoma

Original language description

Conservative active surveillance has been proposed for low-risk papillary thyroid microcarcinoma (PTMC), defined as <= 1.0 cm and lacking clinical aggressive features, but controversy exists with accepting it as not all such PTMCs are uniformly destined for benign prognosis. This study investigated whether BRAF V600E status could further risk stratify PTMC, particularly low-risk PTMC, and can thus help with more accurate case selection for conservative management. This international multicenter study included 743 patients treated with total thyroidectomy for PTMC (584 women and 159 men), with a median age of 49 years (interquartile range [IQR], 39-59 years) and a median follow-up time of 53 months (IQR, 25-93 months). On overall analyses of all PTMCs, tumour recurrences were 6.4% (32/502) versus 10.8% (26/ 241) in BRAF mutation- negative versus BRAF mutation-positive patients (P = 0.041), with a hazard ratio (HR) of 2.44 (95% CI (confidence interval), 1.15-5.20) after multivariate adjustment for confounding clinical factors. On the analyses of low-risk PTMC, recurrences were 1.3% (5/383) versus 4.3% (6/139) in BRAF mutation-negative versus BRAF mutation-positive patients, with an HR of 6.65 (95% CI, 1.80-24.65) after adjustment for confounding clinical factors. BRAF mutation was associated with a significant decline in the KaplaneMeier recurrence-free survival curve in low-risk PTMC. BRAF V600E differentiates the recurrence risk of PTMC, particularly low-risk PTMC. Given the robust negative predictive value, conservative active surveillance of BRAF mutation-negative low-risk PTMC is reasonable whereas the increased recurrence risk and other well-known adverse effects of BRAF V600E make the feasibility of long-term conservative surveillance uncertain for BRAF mutation-positive PTMC.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30204 - Oncology

Project

<a href="/en/project/NV16-32665A" target="_blank" >NV16-32665A: Thyroid cancer in children and adolescents and its molecular genetic background</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Cancer

ISSN

0959-8049

e-ISSN

1879-0852

Volume of the periodical

124

Issue of the periodical within the volume

January

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

161-169

UT code for WoS article

000503386800019

EID of the result in the Scopus database

2-s2.0-85075715061