Modified Docetaxel and Cisplatin in Combination with Capecitabine (DCX) as a First-Line Treatment in HER2-Negative Advanced Gastric Cancer

  • Bilici, Ahmet (Department of Medical Oncology, Medical Faculty, Istanbul Medipol University) ;
  • Selcukbiricik, Fatih (Department of Medical Oncology, Sisli Etfal Education and Research Hospital) ;
  • Demir, Nazan (Department of Medical Oncology, Sisli Etfal Education and Research Hospital) ;
  • Ustaalioglu, Bala Basak Oven (Department of Medical Oncology, Haydarpasa Numune Education and Research Hospital) ;
  • Dikilitas, Mustafa (Department of Medical Oncology, Acibadem Maslak Hospital) ;
  • Yildiz, Ozcan (Department of Medical Oncology, Medical Faculty, Istanbul Medipol University)
  • Published : 2014.11.06


Background: Docetaxel and cisplatin in combination with fluorouracil (DCF) regimen is accepted to be one of the standard regimens in the treatment of advanced gastric cancer. However, substantial toxicity has limited its use in daily clinical practice. Therefore, modification of DCF regimens, including introduction of capecitabine has been investigated to improve the safety profiles. In the present study, the efficacy and toxicity of a regimen with a modified dose of docetaxel and cisplatin in combination with oral capecitabine (DCX) was evaluated in untreated patients with HER2-negative advanced gastric cancer. Materials and Methods: Fifty-four patients with HER2-negative locally advanced or metastatic gastric cancer were included in this cohort. Patients received docetaxel $60mg/m^2$ plus cisplatin $60mg/m^2$ (day 1) combined with capecitabine $1650mg/m^2$ (days 1-14) every 3 weeks. Treatment response, survival, and toxicity were retrospectively analyzed. Results: The median age was 54 years (range: 24-76). The majority of patients (70%) had metastatic disease, while 11 patients (21%) had recurrent disease and underwent curative gastrectomy, and 5 patients (9%) had locally advanced disease (LAD). The median number of DCX cycles was 4. There were 28 partial responses and 11 complete responses, with an overall response rate of 72%. Curative surgery could be performed in four patients among five with LAD. At the median follow-up of 10 months, the median progression-free survival (PFS) and overall survival (OS) of the entire cohort of patients were 7.4 and 12.1 months, respectively. Dose modification was done in 12 patients due to toxicity in 8 and noncompliance in 4 patients. The most common hematological toxicity was neutropenia, which occurred at grade 3-4 intensity in 10 of 54 patients (27.7%). Febrile neutropenia was diagnosed only in two cases. Conclusions: DCX regimen offers prominent anti-tumor activity and considered to be effective first-line treatment with manageable toxicity for patients with HER2-negative advanced gastric cancer.


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