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Efficacy of Imatinib Mesylate for the Treatment of Locally Advanced and/or Metastatic Tenosynovial Giant Cell Tumor/ Pigmented Villonodular Synovitis

Identifieur interne : 005C98 ( Main/Exploration ); précédent : 005C97; suivant : 005C99

Efficacy of Imatinib Mesylate for the Treatment of Locally Advanced and/or Metastatic Tenosynovial Giant Cell Tumor/ Pigmented Villonodular Synovitis

Auteurs : Philippe A. Cassier [France] ; Hans Gelderblom [Pays-Bas] ; Silvia Stacchiotti [Italie] ; David Thomas [Australie] ; Robert G. Maki [États-Unis] ; Judith R. Kroep [Pays-Bas] ; Winette T. Van Der Graaf [Pays-Bas] ; Antoine Italiano [France] ; Beatrice Seddon [Royaume-Uni] ; Julien Domont [France] ; Emanuelle Bompas [France] ; Andrew J. Wagner [États-Unis] ; Jean-Yves Blay [France]

Source :

RBID : Pascal:12-0144440

Descripteurs français

English descriptors

Abstract

BACKGROUND: Pigmented villonodular synovitis (PVNS) (also known as diffuse-type giant cell tumor) and tenosynovial giant cell tumors (TGCT) are rare, usually benign neoplasms that affect the synovium and tendon sheaths in young adults. These tumors are driven by the overexpression of colony stimulating factor-1 (CSF1). CSF1 is expressed by a minority of tumor cells, which, in turn attract non-neoplastic inflammatory cells that express CSF1 receptor (CSF1R) through a paracrine effect. METHODS: Imatinib mesylate (IM) blocks CSF1R, and previous case reports indicated that it also exerts antitumor activity in PVNS. The authors conducted a multi-institutional retrospective study to assess the activity of IM in patients with locally advanced/metastatic PVNS/TGCT. RESULTS: Twenty-nine patients from 12 institutions in Europe, Australia, and the United States were included. There were 13 men, the median age was 41 years, and the most common site of disease was the knee (n = 17; 59%). Two patients had metastatic disease to the lung and/or bone. Five of 27 evaluable patients had Response Evaluation in Solid Tumor (RECIST) responses (overall response rate, 19%; 1 complete response and 4 partial responses), and 20 of 27 patients (74%) had stable disease. Symptomatic improvement was noted in 16 of 22 patients (73%) who were assessable for symptoms. Despite a high rate of symptomatic improvement and a favorable safety profile, 6 patients discontinued because of toxicity, and 4 patients decided to discontinue IM for no clear medical reason. CONCLUSIONS: IM displayed interesting activity in patients with PVNS/TGCT, providing proof of concept for targeting CSF1R in this disease. The authors concluded that the benefits of alleviating morbidity in patients with localized PVNS/TGCT must be balanced against the potential toxicity of chronic drug therapy.


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Le document en format XML

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<term>Advanced stage</term>
<term>Antineoplastic agent</term>
<term>Biological receptor</term>
<term>Cancerology</term>
<term>Chronic</term>
<term>Giant cell tumor</term>
<term>Imatinib</term>
<term>Locally advanced stage</term>
<term>Macrophage colony stimulating factor</term>
<term>Metastasis</term>
<term>Pharmacotherapy</term>
<term>Pigmented villonodular synovitis</term>
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<term>Imatinib</term>
<term>Efficacité traitement</term>
<term>Traitement</term>
<term>Métastase</term>
<term>Stade avancé</term>
<term>Pharmacothérapie</term>
<term>Tumeur cellule géante</term>
<term>Facteur stimulant colonie macrophage</term>
<term>Récepteur biologique</term>
<term>Synovite villonodulaire pigmentée</term>
<term>Cancérologie</term>
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<term>STI 571</term>
<term>Stade localement avancé</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">BACKGROUND: Pigmented villonodular synovitis (PVNS) (also known as diffuse-type giant cell tumor) and tenosynovial giant cell tumors (TGCT) are rare, usually benign neoplasms that affect the synovium and tendon sheaths in young adults. These tumors are driven by the overexpression of colony stimulating factor-1 (CSF1). CSF1 is expressed by a minority of tumor cells, which, in turn attract non-neoplastic inflammatory cells that express CSF1 receptor (CSF1R) through a paracrine effect. METHODS: Imatinib mesylate (IM) blocks CSF1R, and previous case reports indicated that it also exerts antitumor activity in PVNS. The authors conducted a multi-institutional retrospective study to assess the activity of IM in patients with locally advanced/metastatic PVNS/TGCT. RESULTS: Twenty-nine patients from 12 institutions in Europe, Australia, and the United States were included. There were 13 men, the median age was 41 years, and the most common site of disease was the knee (n = 17; 59%). Two patients had metastatic disease to the lung and/or bone. Five of 27 evaluable patients had Response Evaluation in Solid Tumor (RECIST) responses (overall response rate, 19%; 1 complete response and 4 partial responses), and 20 of 27 patients (74%) had stable disease. Symptomatic improvement was noted in 16 of 22 patients (73%) who were assessable for symptoms. Despite a high rate of symptomatic improvement and a favorable safety profile, 6 patients discontinued because of toxicity, and 4 patients decided to discontinue IM for no clear medical reason. CONCLUSIONS: IM displayed interesting activity in patients with PVNS/TGCT, providing proof of concept for targeting CSF1R in this disease. The authors concluded that the benefits of alleviating morbidity in patients with localized PVNS/TGCT must be balanced against the potential toxicity of chronic drug therapy.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Australie</li>
<li>France</li>
<li>Italie</li>
<li>Pays-Bas</li>
<li>Royaume-Uni</li>
<li>États-Unis</li>
</country>
<region>
<li>Angleterre</li>
<li>Aquitaine</li>
<li>Auvergne-Rhône-Alpes</li>
<li>Grand Londres</li>
<li>Gueldre</li>
<li>Hollande-Méridionale</li>
<li>Lombardie</li>
<li>Massachusetts</li>
<li>Nouvelle-Aquitaine</li>
<li>Pays de la Loire</li>
<li>Rhône-Alpes</li>
<li>État de New York</li>
</region>
<settlement>
<li>Bordeaux</li>
<li>Leyde</li>
<li>Londres</li>
<li>Lyon</li>
<li>Milan</li>
<li>Nantes</li>
<li>Nimègue</li>
<li>Villeurbanne</li>
</settlement>
</list>
<tree>
<country name="France">
<region name="Auvergne-Rhône-Alpes">
<name sortKey="Cassier, Philippe A" sort="Cassier, Philippe A" uniqKey="Cassier P" first="Philippe A." last="Cassier">Philippe A. Cassier</name>
</region>
<name sortKey="Blay, Jean Yves" sort="Blay, Jean Yves" uniqKey="Blay J" first="Jean-Yves" last="Blay">Jean-Yves Blay</name>
<name sortKey="Blay, Jean Yves" sort="Blay, Jean Yves" uniqKey="Blay J" first="Jean-Yves" last="Blay">Jean-Yves Blay</name>
<name sortKey="Bompas, Emanuelle" sort="Bompas, Emanuelle" uniqKey="Bompas E" first="Emanuelle" last="Bompas">Emanuelle Bompas</name>
<name sortKey="Domont, Julien" sort="Domont, Julien" uniqKey="Domont J" first="Julien" last="Domont">Julien Domont</name>
<name sortKey="Italiano, Antoine" sort="Italiano, Antoine" uniqKey="Italiano A" first="Antoine" last="Italiano">Antoine Italiano</name>
</country>
<country name="Pays-Bas">
<region name="Hollande-Méridionale">
<name sortKey="Gelderblom, Hans" sort="Gelderblom, Hans" uniqKey="Gelderblom H" first="Hans" last="Gelderblom">Hans Gelderblom</name>
</region>
<name sortKey="Der Graaf, Winette T Van" sort="Der Graaf, Winette T Van" uniqKey="Der Graaf W" first="Winette T. Van" last="Der Graaf">Winette T. Van Der Graaf</name>
<name sortKey="Kroep, Judith R" sort="Kroep, Judith R" uniqKey="Kroep J" first="Judith R." last="Kroep">Judith R. Kroep</name>
</country>
<country name="Italie">
<region name="Lombardie">
<name sortKey="Stacchiotti, Silvia" sort="Stacchiotti, Silvia" uniqKey="Stacchiotti S" first="Silvia" last="Stacchiotti">Silvia Stacchiotti</name>
</region>
</country>
<country name="Australie">
<noRegion>
<name sortKey="Thomas, David" sort="Thomas, David" uniqKey="Thomas D" first="David" last="Thomas">David Thomas</name>
</noRegion>
</country>
<country name="États-Unis">
<region name="État de New York">
<name sortKey="Maki, Robert G" sort="Maki, Robert G" uniqKey="Maki R" first="Robert G." last="Maki">Robert G. Maki</name>
</region>
<name sortKey="Wagner, Andrew J" sort="Wagner, Andrew J" uniqKey="Wagner A" first="Andrew J." last="Wagner">Andrew J. Wagner</name>
</country>
<country name="Royaume-Uni">
<region name="Angleterre">
<name sortKey="Seddon, Beatrice" sort="Seddon, Beatrice" uniqKey="Seddon B" first="Beatrice" last="Seddon">Beatrice Seddon</name>
</region>
</country>
</tree>
</affiliations>
</record>

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