Serveur d'exploration sur les relations entre la France et l'Australie

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Disease-Related Outcomes With Long-Term Follow-Up: An Updated Analysis of the Intergroup Exemestane Study

Identifieur interne : 005D23 ( Main/Exploration ); précédent : 005D22; suivant : 005D24

Disease-Related Outcomes With Long-Term Follow-Up: An Updated Analysis of the Intergroup Exemestane Study

Auteurs : Judith M. Bliss [Royaume-Uni] ; Lucy S. Kilburn [Royaume-Uni] ; Robert E. Coleman [Royaume-Uni] ; John F. Forbes [Australie] ; Alan S. Coates [Suisse, Australie] ; Stephen E. Jonas [États-Unis] ; Jacek Jassem [Pologne] ; Thierry Delozier [France] ; J Rn Andersen [Danemark] ; Robert Paridaens [Belgique] ; Cornelis J. H. Van De Velde [Pays-Bas] ; Per E. Lonning [Norvège] ; James Morden [Royaume-Uni] ; Justine Reise [Royaume-Uni] ; Laura Cisar [États-Unis] ; Thomas Menschik [France] ; R. Charles Coombes [Royaume-Uni]

Source :

RBID : Pascal:12-0121349

Descripteurs français

English descriptors

Abstract

Purpose Intergroup Exemestane Study (IES), an investigator-led study in 4,724 postmenopausal patients with early-stage breast cancer has demonstrated clinically important benefits from switching adjuvant endocrine therapy after 2 to 3 years of tamoxifen to exemestane. Now, with longer follow-up, a large number of non-breast cancer-related events have been reported. Exploratory analyses describe breast cancer-free survival (BCFS) and explore incidence and patterns of the different competing events. Patients and Methods Patients who were disease-free after 2 to 3 years of adjuvant tamoxifen were randomly assigned to continue tamoxifen or switch to exemestane to complete 5 years of adjuvant endocrine therapy. At this planned analysis, the median follow-up was 91 months. Principal analysis focuses on 4,052 patients with estrogen receptor (ER) -positive and 547 with ER-unknown tumors. Results In all, 930 BCFS events have been reported (exemestane, 423; tamoxifen, 507), giving an unadjusted hazard ratio (HR) of 0.81 (95% CI, 0.71 to 0.92; P = .001) in favor of exemestane in the ER-positive/ER unknown group. Analysis partitioned at 2.5 years after random assignment showed that the on-treatment benefit of switching to exemestane (HR, 0.60; 95% CI, 0.48 to 0.75; P < .001) was not lost post-treatment, but that there was no additional gain once treatment had ceased (HR, 0.94; 95% CI, 0.80 to 1.10; P = .60). Improvement in overall survival was demonstrated, with 352 deaths in the exemestane group versus 405 deaths in the tamoxifen group (HR, 0.86; 95% CI, 0.75 to 0.99; P = .04). Of these, 222 were reported as intercurrent deaths (exemestane, 107; tamoxifen, 115). Conclusion The protective effect of switching to exemestane compared with continuing on tamoxifen on risk of relapse or death was maintained for at least 5 years post-treatment and was associated with a continuing beneficial impact on overall survival.


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Le document en format XML

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<title xml:lang="en" level="a">Disease-Related Outcomes With Long-Term Follow-Up: An Updated Analysis of the Intergroup Exemestane Study</title>
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<region type="country">Angleterre</region>
<region type="région" nuts="1">Grand Londres</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Cisar, Laura" sort="Cisar, Laura" uniqKey="Cisar L" first="Laura" last="Cisar">Laura Cisar</name>
<affiliation wicri:level="1">
<inist:fA14 i1="15">
<s1>Pfizer</s1>
<s2>New York, NY</s2>
<s3>USA</s3>
<sZ>15 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Pfizer</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Menschik, Thomas" sort="Menschik, Thomas" uniqKey="Menschik T" first="Thomas" last="Menschik">Thomas Menschik</name>
<affiliation wicri:level="3">
<inist:fA14 i1="10">
<s1>Pfizer Oncology Europe</s1>
<s2>Paris</s2>
<s3>FRA</s3>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName>
<region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Paris</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Coombes, R Charles" sort="Coombes, R Charles" uniqKey="Coombes R" first="R. Charles" last="Coombes">R. Charles Coombes</name>
<affiliation wicri:level="3">
<inist:fA14 i1="03">
<s1>Justine Reise and R. Charles Coombes, Imperial College London</s1>
<s2>London</s2>
<s3>GBR</s3>
<sZ>14 aut.</sZ>
<sZ>17 aut.</sZ>
</inist:fA14>
<country>Royaume-Uni</country>
<placeName>
<settlement type="city">Londres</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Grand Londres</region>
</placeName>
</affiliation>
</author>
</analytic>
<series>
<title level="j" type="main">Journal of clinical oncology</title>
<title level="j" type="abbreviated">J. clin. oncol.</title>
<idno type="ISSN">0732-183X</idno>
<imprint>
<date when="2012">2012</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<title level="j" type="main">Journal of clinical oncology</title>
<title level="j" type="abbreviated">J. clin. oncol.</title>
<idno type="ISSN">0732-183X</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Antineoplastic agent</term>
<term>Cancerology</term>
<term>Exemestane</term>
<term>Follow up study</term>
<term>Long term</term>
<term>Prognosis</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Exémestane</term>
<term>Pronostic</term>
<term>Long terme</term>
<term>Etude longitudinale</term>
<term>Cancérologie</term>
<term>Anticancéreux</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Purpose Intergroup Exemestane Study (IES), an investigator-led study in 4,724 postmenopausal patients with early-stage breast cancer has demonstrated clinically important benefits from switching adjuvant endocrine therapy after 2 to 3 years of tamoxifen to exemestane. Now, with longer follow-up, a large number of non-breast cancer-related events have been reported. Exploratory analyses describe breast cancer-free survival (BCFS) and explore incidence and patterns of the different competing events. Patients and Methods Patients who were disease-free after 2 to 3 years of adjuvant tamoxifen were randomly assigned to continue tamoxifen or switch to exemestane to complete 5 years of adjuvant endocrine therapy. At this planned analysis, the median follow-up was 91 months. Principal analysis focuses on 4,052 patients with estrogen receptor (ER) -positive and 547 with ER-unknown tumors. Results In all, 930 BCFS events have been reported (exemestane, 423; tamoxifen, 507), giving an unadjusted hazard ratio (HR) of 0.81 (95% CI, 0.71 to 0.92; P = .001) in favor of exemestane in the ER-positive/ER unknown group. Analysis partitioned at 2.5 years after random assignment showed that the on-treatment benefit of switching to exemestane (HR, 0.60; 95% CI, 0.48 to 0.75; P < .001) was not lost post-treatment, but that there was no additional gain once treatment had ceased (HR, 0.94; 95% CI, 0.80 to 1.10; P = .60). Improvement in overall survival was demonstrated, with 352 deaths in the exemestane group versus 405 deaths in the tamoxifen group (HR, 0.86; 95% CI, 0.75 to 0.99; P = .04). Of these, 222 were reported as intercurrent deaths (exemestane, 107; tamoxifen, 115). Conclusion The protective effect of switching to exemestane compared with continuing on tamoxifen on risk of relapse or death was maintained for at least 5 years post-treatment and was associated with a continuing beneficial impact on overall survival.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Australie</li>
<li>Belgique</li>
<li>Danemark</li>
<li>France</li>
<li>Norvège</li>
<li>Pays-Bas</li>
<li>Pologne</li>
<li>Royaume-Uni</li>
<li>Suisse</li>
<li>États-Unis</li>
</country>
<region>
<li>Angleterre</li>
<li>Basse-Normandie</li>
<li>Canton de Berne</li>
<li>Grand Londres</li>
<li>Hollande-Méridionale</li>
<li>Nouvelle-Galles du Sud</li>
<li>Région Normandie</li>
<li>Île-de-France</li>
</region>
<settlement>
<li>Berne</li>
<li>Caen</li>
<li>Leyde</li>
<li>Londres</li>
<li>Paris</li>
<li>Sydney</li>
</settlement>
<orgName>
<li>Université de Sydney</li>
</orgName>
</list>
<tree>
<country name="Royaume-Uni">
<noRegion>
<name sortKey="Bliss, Judith M" sort="Bliss, Judith M" uniqKey="Bliss J" first="Judith M." last="Bliss">Judith M. Bliss</name>
</noRegion>
<name sortKey="Coleman, Robert E" sort="Coleman, Robert E" uniqKey="Coleman R" first="Robert E." last="Coleman">Robert E. Coleman</name>
<name sortKey="Coombes, R Charles" sort="Coombes, R Charles" uniqKey="Coombes R" first="R. Charles" last="Coombes">R. Charles Coombes</name>
<name sortKey="Kilburn, Lucy S" sort="Kilburn, Lucy S" uniqKey="Kilburn L" first="Lucy S." last="Kilburn">Lucy S. Kilburn</name>
<name sortKey="Morden, James" sort="Morden, James" uniqKey="Morden J" first="James" last="Morden">James Morden</name>
<name sortKey="Reise, Justine" sort="Reise, Justine" uniqKey="Reise J" first="Justine" last="Reise">Justine Reise</name>
</country>
<country name="Australie">
<noRegion>
<name sortKey="Forbes, John F" sort="Forbes, John F" uniqKey="Forbes J" first="John F." last="Forbes">John F. Forbes</name>
</noRegion>
<name sortKey="Coates, Alan S" sort="Coates, Alan S" uniqKey="Coates A" first="Alan S." last="Coates">Alan S. Coates</name>
</country>
<country name="Suisse">
<region name="Canton de Berne">
<name sortKey="Coates, Alan S" sort="Coates, Alan S" uniqKey="Coates A" first="Alan S." last="Coates">Alan S. Coates</name>
</region>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Jonas, Stephen E" sort="Jonas, Stephen E" uniqKey="Jonas S" first="Stephen E." last="Jonas">Stephen E. Jonas</name>
</noRegion>
<name sortKey="Cisar, Laura" sort="Cisar, Laura" uniqKey="Cisar L" first="Laura" last="Cisar">Laura Cisar</name>
</country>
<country name="Pologne">
<noRegion>
<name sortKey="Jassem, Jacek" sort="Jassem, Jacek" uniqKey="Jassem J" first="Jacek" last="Jassem">Jacek Jassem</name>
</noRegion>
</country>
<country name="France">
<region name="Région Normandie">
<name sortKey="Delozier, Thierry" sort="Delozier, Thierry" uniqKey="Delozier T" first="Thierry" last="Delozier">Thierry Delozier</name>
</region>
<name sortKey="Menschik, Thomas" sort="Menschik, Thomas" uniqKey="Menschik T" first="Thomas" last="Menschik">Thomas Menschik</name>
</country>
<country name="Danemark">
<noRegion>
<name sortKey="Andersen, J Rn" sort="Andersen, J Rn" uniqKey="Andersen J" first="J Rn" last="Andersen">J Rn Andersen</name>
</noRegion>
</country>
<country name="Belgique">
<noRegion>
<name sortKey="Paridaens, Robert" sort="Paridaens, Robert" uniqKey="Paridaens R" first="Robert" last="Paridaens">Robert Paridaens</name>
</noRegion>
</country>
<country name="Pays-Bas">
<region name="Hollande-Méridionale">
<name sortKey="De Velde, Cornelis J H Van" sort="De Velde, Cornelis J H Van" uniqKey="De Velde C" first="Cornelis J. H. Van" last="De Velde">Cornelis J. H. Van De Velde</name>
</region>
</country>
<country name="Norvège">
<noRegion>
<name sortKey="Lonning, Per E" sort="Lonning, Per E" uniqKey="Lonning P" first="Per E." last="Lonning">Per E. Lonning</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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