Clinical analysis of imatinib in patients with advanced gastrointestinal stromal tumor / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 243-246, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-290811
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the efficacy and influencing factors of imatinib in patients with advanced gastrointestinal stromal tumor(GIST).</p><p><b>METHODS</b>From April 2004 to January 2010, clinicopathological data of 73 adult patients with advanced GIST treated with imatinib at the First Affiliated Hospital of Sun Yat-sen University were retrospectively analyzed. The treatment outcomes and associated factors were investigated.</p><p><b>RESULTS</b>Treatment outcomes included complete response in 1(1.4%) patients, partial response in 53(72.6%), stable disease in 14(19.2%), and primary resistant in 5(6.8%). All the patients had routine followed up, the length of which ranged from 12 to 76 (median 32) months. The median progression-free survival was 45.0 months(95% confidence interval, 34.2-55.8). The progression-free survival(PFS) rate was 87.7% in 1 year, 63.6% in 3 year, and 39.6% in 5 years. On multivariate analysis, both mutation status and patient performance were independent factors influencing the efficacy of imatinib treatment(both P<0.01). PFS was significantly better in patients with c-kit exon 11 mutations than those with exon 9 mutations, and better in lower ECOG scales than in higher ones.</p><p><b>CONCLUSION</b>Imatinib is effective in treating patients with advanced GIST, c-kit exon 9 mutations and poor performance status predict an adverse survival benefit of imatinib therapy.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Piperazines
/
Pyrimidines
/
Benzamides
/
Exons
/
Retrospective Studies
/
Follow-Up Studies
/
Treatment Outcome
/
Proto-Oncogene Proteins c-kit
/
Therapeutic Uses
/
Gastrointestinal Stromal Tumors
Type of study:
Observational study
/
Prognostic study
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Gastrointestinal Surgery
Year:
2012
Type:
Article
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