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A multicenter, phase II trial of everolimus in locally advanced or metastatic thyroid cancer of all histologic subtypes

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Author(s)
박건욱
Alternative Author(s)
Park, Keon Uk
Publication Year
2013
Abstract
Background: This phase II study investigated the efficacy and safety of everolimus, an inhibitor of mammalian target of
rapamycin (mTOR), in locally advanced or metastatic thyroid cancer.
Patients and methods: Patients with thyroid cancer of any histology that was resistant or not appropriate for 131I
received everolimus 10 mg daily orally until unacceptable toxicity or disease progression. The primary end point was
disease control rate [ partial response (PR) + stable response ≥12 weeks]. Secondary end points included response
rates, clinical benefit (PD + durable stable disease (SD)], progression-free survival (PFS), overall survival, duration of
response, and safety.
Results: Thirty-eight of 40 enrolled patients were evaluable for efficacy. The disease control rate was 81% and two (5%)
patients achieved objective response; their duration of response was 21+ and 24+ weeks. Stable disease (SD) and
progressive disease was reported in 76% and 17% of patients, respectively. Seventeen (45%) patients showed durable
SD (≥24 weeks) and clinical benefit was reported in 19 (50%) patients. Median PFS was 47 weeks [95% confidence
interval (CI) 14.9–78.5]. Calcitonin, CEA, and thyroglobulin concentrations were ≥50% lower than baseline in three (30%)
and four (44%) patients with medullary thyroid cancer and five (33%) patients with PTC, respectively. The most common
treatment-related adverse events were mucositis (84%), anorexia (44%), and aspartate transaminase/alanine
transaminase elevation (26%).
Conclusions: Everolimus had a limited activity with low response rate in locally advanced or metastatic thyroid cancer.
Reasonable clinical benefit rate and safety profile may warrant further investigation.
ClinicalTrials.gov number: NCT01164176.
Key words: efficacy, everolimus, mTOR inhibitor, safety, thyroid cancer
Department
Dept. of Internal Medicine (내과학)
Publisher
School of Medicine
Citation
Annals of Oncology, Vol.24(12) : 3089-3094, 2013
Type
Article
ISSN
1569-8041
DOI
10.1093/annonc/mdt379
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/35014
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