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Characterization of Tumor Size Changes Over Time From the Phase 3 Study of Lenvatinib in Thyroid Cancer

Identifieur interne : 002239 ( Main/Curation ); précédent : 002238; suivant : 002240

Characterization of Tumor Size Changes Over Time From the Phase 3 Study of Lenvatinib in Thyroid Cancer

Auteurs : Bruce Robinson ; Martin Schlumberger ; Lori J. Wirth ; Corina E. Dutcus ; James Song ; Matthew H. Taylor ; Sung-Bae Kim ; Monika K. Krzyzanowska ; Jaume Capdevila ; Steven I. Sherman ; Makoto Tahara

Source :

RBID : PMC:5095235

Descripteurs français

English descriptors

Abstract

Context:

Lenvatinib improved the progression-free survival (PFS) and overall response rate of patients with radioiodine-refractory differentiated thyroid cancer vs placebo in the Phase 3 Study of (E7080) Lenvatinib in Differentiated Cancer of the Thyroid (SELECT).

Objective:

The objective of the study was to characterize tumor size changes with lenvatinib treatment.

Design:

SELECT was a phase 3, randomized, double-blind, multicenter study.

Setting:

In this clinical trial, tumor assessments of lenvatinib (n = 261) and placebo-treated (n = 131) patients were performed by independent radiological review per Response Evaluation Criteria in Solid Tumors version, 1.1 at 8-week intervals.

Patients:

Patients with complete or partial response were defined as responders to lenvatinib (n = 169). Of the 92 nonresponders, 76 had at least one postbaseline tumor assessment and were included in this analysis.

Interventions:

Lenvatinib (24 mg once daily) or placebo in 28-day cycles until unacceptable toxicity, disease progression, or death.

Main Outcome Measures:

This was an exploratory analysis of key end points from SELECT, including PFS, overall response rate, and tumor reduction.

Results:

The median maximum percentage change in tumor size was −42.9% for patients receiving lenvatinib (responders, −51.9%; nonresponders, −20.2%). Tumor size reduction was most pronounced at first assessment (median, −24.7% at 8 wk after randomization); thereafter, the rate of change was slower but continuous (−1.3% per mo). In a multivariate model, percentage change in tumor size at the first assessment was a marginally significant positive predictor for PFS (P = .06).

Conclusions:

The change in tumor size conferred by lenvatinib was characterized by two phases: an initial, rapid decline, followed by slower, continuous shrinkage.


Url:
DOI: 10.1210/jc.2015-3989
PubMed: 27548104
PubMed Central: 5095235

Links toward previous steps (curation, corpus...)


Links to Exploration step

PMC:5095235

Le document en format XML

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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Antineoplastic Agents (administration & dosage)</term>
<term>Antineoplastic Agents (pharmacology)</term>
<term>Disease-Free Survival</term>
<term>Double-Blind Method</term>
<term>Female</term>
<term>Follow-Up Studies</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Outcome Assessment (Health Care)</term>
<term>Phenylurea Compounds (administration & dosage)</term>
<term>Phenylurea Compounds (pharmacology)</term>
<term>Quinolines (administration & dosage)</term>
<term>Quinolines (pharmacology)</term>
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<term>Thyroid Neoplasms (drug therapy)</term>
<term>Young Adult</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Antinéoplasiques (administration et posologie)</term>
<term>Antinéoplasiques (pharmacologie)</term>
<term>Femelle</term>
<term>Humains</term>
<term>Jeune adulte</term>
<term>Mâle</term>
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<term>Phénylurées</term>
<term>Quinoléines</term>
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<term>Thyroid Neoplasms</term>
</keywords>
<keywords scheme="MESH" qualifier="drug therapy" xml:lang="en">
<term>Thyroid Neoplasms</term>
</keywords>
<keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr">
<term>Tumeurs de la thyroïde</term>
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<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr">
<term>Antinéoplasiques</term>
<term>Phénylurées</term>
<term>Quinoléines</term>
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<term>Tumeurs de la thyroïde</term>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Disease-Free Survival</term>
<term>Double-Blind Method</term>
<term>Female</term>
<term>Follow-Up Studies</term>
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<div type="abstract" xml:lang="en">
<sec>
<title>Context:</title>
<p>Lenvatinib improved the progression-free survival (PFS) and overall response rate of patients with radioiodine-refractory differentiated thyroid cancer vs placebo in the Phase 3
<italic>S</italic>
tudy of (E7080) Lenvatinib in Differentiated Cancer of the Thyroid (SELECT).</p>
</sec>
<sec>
<title>Objective:</title>
<p>The objective of the study was to characterize tumor size changes with lenvatinib treatment.</p>
</sec>
<sec>
<title>Design:</title>
<p>SELECT was a phase 3, randomized, double-blind, multicenter study.</p>
</sec>
<sec>
<title>Setting:</title>
<p>In this clinical trial, tumor assessments of lenvatinib (n = 261) and placebo-treated (n = 131) patients were performed by independent radiological review per Response Evaluation Criteria in Solid Tumors version, 1.1 at 8-week intervals.</p>
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<p>Patients with complete or partial response were defined as responders to lenvatinib (n = 169). Of the 92 nonresponders, 76 had at least one postbaseline tumor assessment and were included in this analysis.</p>
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<sec>
<title>Interventions:</title>
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<p>This was an exploratory analysis of key end points from SELECT, including PFS, overall response rate, and tumor reduction.</p>
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<p>The median maximum percentage change in tumor size was −42.9% for patients receiving lenvatinib (responders, −51.9%; nonresponders, −20.2%). Tumor size reduction was most pronounced at first assessment (median, −24.7% at 8 wk after randomization); thereafter, the rate of change was slower but continuous (−1.3% per mo). In a multivariate model, percentage change in tumor size at the first assessment was a marginally significant positive predictor for PFS (
<italic>P</italic>
= .06).</p>
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<p>The change in tumor size conferred by lenvatinib was characterized by two phases: an initial, rapid decline, followed by slower, continuous shrinkage.</p>
</sec>
</div>
</front>
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