Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-9-9
pubmed:abstractText
Gastrointestinal stromal tumors (GISTs) generally arise from primary activating mutations in the KIT or PDGFRA genes that result in constitutive activation of receptor tyrosine kinase activity. Imatinib provides targeted therapy for GIST by inhibiting the KIT and PDGFR-alpha tyrosine kinases. Clinical benefit is achieved in approximately 85% of patients with unresectable or metastatic disease, with a median progression-free survival of 20 to 24 months. The mechanisms of acquired resistance to imatinib are heterogeneous, with most involving the emergence of secondary mutations in KIT exons 13, 14, or 17. In patients failing or intolerant to imatinib, the multitargeted agent sunitinib achieves durable disease control in approximately 50% of cases. Experimental treatment options beyond those currently available consist of other KIT-targeting tyrosine kinase inhibitors, such as nilotinib, or agents targeting alternative pathways, such as antiangiogenic agents, mammalian target of rapamycin, RAF kinase, and chaperone inhibitors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1534-6269
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
344-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Novel approaches to imatinib- and sunitinib-resistant GIST.
pubmed:affiliation
Helios Klinikum Bad Saarow, Department of Hematology, Oncology, and Palliative Care, Sarcoma Center Berlin-Brandenburg, Pieskower Strasse 33, 15526 Bad Saarow, Germany. peter.reichardt@helios-kliniken.de
pubmed:publicationType
Journal Article, Review