Cancer Research and Treatment

Original Article

Real-World Treatment Patterns among Patients with Advanced Gastric Cancer in South Korea: Gebra Cuyun Carter, Anna Kaltenboeck, Jasmina Ivanova, Astra M. Liepa, Alexandra San Roman, Maria Koh, Narayan Rajan, Rebecca Cheng, Howard G. Birnbaum, Jong Seok Kim, Yung-Jue Bang; Cancer Res Treat. 2017;49(3):578-587. Published online September 12, 2016; DOI: https://doi.org/10.4143/crt.2016.001

Purpose
The purpose of this study was to understand patient treatment patterns, outcomes, and healthcare resource use in cases of metastatic and/orlocally recurrent, unresectable gastric cancer (MGC) in South Korea.
Materials and Methods
Thirty physicians reviewed charts of eligible patients to collect de-identified data. Patients must have received platinum/fluoropyrimidine first-line therapy followed by second-line therapy or best supportive care, had no other primary cancer, and not participated in a clinical trial following MGC diagnosis. Data were summarized using descriptive statistics. Kaplan-Meier analysis was used to describe survival.
Results
Of 198 patients, 73.7% were male, 78.3% were diagnosed with MGC after age 55 (mean, 61.3 years), and 47.0% were current orformer smokers. The majority of tumorswere located in the antrum/pylorus (51.5%). Metastatic sites most often occurred in the peritoneum (53.5%), lymph nodes (47.5%), and liver (38.9%). At diagnosis, the mean Charlson comorbidity indexwas 0.4 (standard deviation, 0.6). The most common comorbiditieswere chronic gastritis (22.7%) and cardiovascular disease (18.7%). Most patients (80.3%) received second-line treatment. Single-agent fluoropyrimidine was reported for 22.0% of patients, while 19.5% were treated with irinotecan and a fluoropyrimidine or platinum agent. The most common physician-reported symptoms during second-line treatment were nausea/vomiting (44.7%) and pain (11.3%), with antiemetics (44.7%), analgesics (36.5%), and nutritional support (11.3%) most often used as supportive care. Two-thirds of inpatient hospitalizations were for chemotherapy infusion. Outpatient hospitalization (31.6%) and visits to the oncologist (58.8%) were common among second-line patients.
Conclusion
Most patients received second-line treatment, although regimens varied. Understanding MGC patient characteristics and treatment patterns in South Korea will help address unmet needs.

Citations

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