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KMID : 0614620160680050245
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Korean Journal of Gastroenterology
2016 Volume.68 No. 5 p.245 ~ p.252
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Clinical Outcome of Doublet and Triplet Neoadjuvant Chemotherapy for Locally Advanced Gastric Cancer
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Kim Ju-Seok
Kang Sun-Hyung
Moon Hee-Seok
Sung Jae-Kyu
Jeong Hyun-Yong
Sul Ji-Young
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Abstract
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Background/Aims: In gastric cancer, the rate of recurrence and metastasis following radical resection is high, necessitating improvement in survival and cure rates. Neoadjuvant chemotherapy (NAC) has potential benefits for locally advanced gastric cancer; however, the surgical benefits and effects on survival are unclear. This study evaluates the effectiveness of NAC in locally advanced gastric cancer and compares clinical outcomes of doublet and triplet regimens.
Methods: We reviewed patient medical records of 383 patients who underwent NAC (n=41) or surgery only (n=342) for treatment of locally advanced gastric cancer. The baseline characteristics and clinical outcomes were compared between the groups. Chemotherapy patients were classified according to regimen, doublet (n=28) and triplet (n=13), and NAC-related clinical response, safety, and toxicity were analyzed.
Results: The baseline characteristics did not differ significantly between groups. After NAC, the tumor downstage rate was 51.2% (21/41); however, overall survival (p=0.205) and disease-free survival (p=0.415) were not significantly different between the groups. On subgroup analysis, no significant differences in drug toxicity (p=0.604) or clinical response (p=0.374) were found between outcomes of doublet and triplet chemotherapy regimens.
Conclusions: In patients with locally advanced gastric cancer, NAC showed tolerable drug toxicity and increased tumor downstage, but NAC failed to increase the survival rate, which may be caused by a high D2-lymphadenectomy rate. Therefore, NAC was found to be a therapeutic option for select gastric cancer patients.
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KEYWORD
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Neoadjuvant therapy, Drug therapy, Stomach, Adenocarcinoma
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