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Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
A prognostic model in patients treated for metastatic gastric cancer with second-line chemotherapy
D Kanagavel1, I A Pokataev1, M Y Fedyanin1
1Department of Clinical Pharmacology and Chemotherapy, N. N. Blokhin Russian Cancer Research Center, Moscow, Russia.
Background:
This retrospective study was carried out to evaluate the prognostic significance of clinical factors in patients treated for metastatic gastric cancer with second-line chemotherapy.
Patients And Methods:
We evaluated the prognostic significance of various clinical factors in 126 patients, who were treated with second-line chemotherapy.
Results:
Median progression-free and overall survival (OS) for second-line chemotherapy were 3.3 and 5.3 months, respectively, with an overall response rate of 11.1%. Multivariate analysis identified three independent prognostic factors: performance status: Eastern Cooperative Oncology Group zero to one [hazard ratio (HR) 2.3, 95% confidence interval (CI) 1.7-5.4], hemoglobin (Hb) level: >/=10 g/dl (HR 2.2, 95% CI 2.1-2.4) and time-to-progression (TTP) under first-line therapy: >/=5 months (HR 0.5, 95% CI 0.3-0.8). From the obtained data, a prognostic index was constructed, dividing the patients into three risk groups: good (n = 40), intermediate (n = 36) and poor risk group (n = 56). The median survival for good, intermediate and poor risk groups were 13.5, 6.0 and 2.9 months, respectively, whereas the 1-year OS rates were 50.2%, 14.2% and 2.6%, respectively (P = 0.00001).
Conclusions:
With inadequate data from randomized controlled trials at the moment, our report indicates that second-line chemotherapy is effective and beneficial in patients with good performance status, higher Hb level along with higher TTP under first-line therapy.
