Abstract
Purpose
This prospective multicenter phase II study was carried out to investigate the efficacy, safety and pharmacokinetics of S-1 monotherapy in elderly patients over 75 years of age, with unresectable advanced or recurrent gastric cancer.
Methods
Patients had measurable or evaluable lesions according to the Japanese Classification of Gastric Carcinoma. S-1 (25–60 mg determined by the body surface area and creatinine clearance) was given orally, twice daily. A course of treatment consisted of 4-week administration followed by a 2-week rest period, and the patients received repeated courses.
Results
Thirty-three patients were enrolled. Pharmacokinetics of S-1 was studied in six patients, and the maximum plasma concentrations of respective metabolites after S-1 administration were found to be similar to those reported for younger cancer patients. The overall response rate in 33 patients was 21.2% (95% CI, 10.7–37.8%), and median progression-free survival was 3.9 months, with a median overall survival of 15.7 months. Frequently noted adverse events include leukopenia, neutropenia, anemia, anorexia, and fatigue. As for serious adverse events, relatively higher frequencies of anemia (9%) and anorexia (12%) of grade 3 severity were found, but there were no grade 4 episodes.
Conclusions
The results suggest that S-1 monotherapy is safe and useful for elderly patients with unresectable advanced or recurrent gastric cancer when the dose is selected with caution, taking into account renal function.
Similar content being viewed by others
References
Inoue M, Tsugane S (2005) Epidemiology of gastric cancer in Japan. Postgrad Med J 81:419–424
Parkin DM, Bray F, Ferlay J, Pisani P (2005) Global cancer statistics, 2002. CA Cancer J Clin 55:74–108
Ohtsu A, Shimada Y, Shirao K, Boku N, Hyodo I, Saito H, Yamamichi N, Miyata Y, Ikeda N, Yamamoto S, Fukuda H, Yoshida S (2003) Randomized phase III trial of fluorouracil alone versus fluorouracil plus cisplatin versus uracil and tegafur plus mitomycin in patients with unresectable, advanced gastric cancer: The Japan Clinical Oncology Group Study (JCOG9205). J Clin Oncol 21:54–59
Boku N, Yamamoto S, Shirao K, Doi T, Sawaki A, Koizumi W, Saito H, Yamaguchi K, Kimura A, Ohtsu A (2007) Randomized phase III study of 5-fluorouracil (5-FU) alone versus combination of irinotecan and cisplatin (CP) versus S-1 alone in advanced gastric cancer (JCOG9912). Proc Am Soc Clin Oncol 25: abstract LBA4513
Shirasaka T, Shimamato Y, Ohshimo H, Yamaguchi M, Kato T, Yonekura K, Fukushima M (1996) Development of a novel form of an oral 5-fluorouracil derivative (S-1) directed to the potentiation of the tumor selective cytotoxicity of 5-fluorouracil by two biochemical modulators. Anticancer Drugs 7:548–557
Tatsumi K, Fukushima M, Shirasaka T, Fujii S (1987) Inhibitory effects of pyrimidine, barbituric acid and pyridine derivatives on 5-fluorouracil degradation in rat liver extracts. Jpn J Cancer Res 78:748–755
Shirasaka T, Shimamoto Y, Fukushima M (1993) Inhibition by oxonic acid of gastrointestinal toxicity of 5-fluorouracil without loss of its antitumor activity in rats. Cancer Res 53:4004–4009
Koizumi W, Narahara H, Hara T, Takagane A, Akiya T, Takagi M, Miyashita K, Nishizaki T, Kobayashi O, Takiyama W, Toh Y, Nagaie T, Takagi S, Yamamura Y, Yanaoka K, Orita H, Takeuchi M (2008) S-1 plus cisplatin versus S-1 alone for first-line treatment of advanced gastric cancer (SPIRITS trial): a phase III trial. Lancet Oncol 9:215–221
Imamura H, Iishi H, Tsuburaya A, Hatake K, Imamoto H, Esaki T, Kato M, Furukawa H, Hamada C, Sakata Y (2008) randomized phase III study of irinotecan plus S-1 (IRIS) versus S-1 alone as first-line treatment for advanced gastric cancer (GC0301/TOP-002). Gastrointestinal Cancers Symposium: abstract 5
Sakata Y, Ohtsu A, Horikoshi N, Sugimachi K, Mitachi Y, Taguchi T (1998) Late phase II study of novel oral fluoropyrimidine anticancer drug S-1 (1 M tegafur-0.4 M gimestat-1 M otastat potassium) in advanced gastric cancer patients. Eur J Cancer 34:1715–1720
Koizumi W, Kurihara M, Nakano S, Hasegawa K (2000) Phase II study of S-1, a novel oral derivative of 5-fluorouracil, in advanced gastric cancer. For the S-1 Cooperative Gastric Cancer Study Group. Oncology 58:191–197
Japanese Gastric Cancer Association (1999) Japanese Classification of Gastric Carcinoma (In Japanese), 13th edn. Kanehara, Tokyo
Japanese Gastric Cancer Association (2001) Japanese classification of gastric carcinoma—2nd English edition—response assessment of chemotherapy and radiotherapy for gastric carcinoma: clinical criteria. Gastric Cancer 4:1–8
Kurihara M, Aiko T (2001) The new Japanese classification of gastric carcinoma: revised explanation of “response assessment of chemotherapy and radiotherapy for gastric carcinoma”. Gastric Cancer 4:9–13
Cockcroft D, Gault H (1976) Prediction of clearance from serum creatinine. Nephron 16:31–41
Matsushima E, Yoshida K, Kitamura R, Yoshida K (1997) Determination of S-1 (combined drug of tegafur, 5-chloro-2, 4-dihydroxypyridine and potassium oxonate) and 5-fluorouracil in human plasma and urine using high-performance liquid chromatography and gas chromatography-negative ion chemical ionization mass spectrometry. J Chromatogr B Biomed Sci Appl 691:95–104
Ishido K, Koizumi W, Tanabe S, Higuchi K, Sasaki T, Katada C, Azuma M, Saigenji K, Futawatari N, Saegusa M (2008) A patient with stage IV type 4 advanced gastric cancer who had a complete pathological response to short-term treatment with S-1 alone. Anticancer Drugs 19:921–925
Ikeda M, Furukawa H, Imamura H, Shimizu J, Ishida H, Masutani S, Tatsuta M, Kawasaki T, Satomi T (2002) Pharmacokinetic study of S-1, a novel oral fluorouracil antitumor agent in animal model and in patients with impaired renal function. Cancer Chemother Pharmacol 50:25–32
Hirata K, Horikoshi N, Aiba K, Okazaki M, Denno R, Sasaki K, Nakano Y, Ishizuka H, Yamada Y, Uno S, Taguchi T, Shirasaka T (1999) Pharmacokinetic study of S-1, a novel oral fluorouracil antitumor drug. Clin Cancer Res 5:2000–2005
Therasse P, Arbuck S, Eisenhauer E, Wanders J, Kaplan R, Rubinstein L, Verweij J, Van Glabbeke M, vO AT, Christian M, Gwyther S (2000) New guidelines to evaluate the response to treatment in solid tumors. J Natl Cancer Inst 92:205–216
Ohtsu A, Boku N, Yoshida S, Miyata Y, Shirao K, Shimada Y, Kurihara M (1998) Response of the primary lesion in gastric cancer o chemotherapeutic trials. Int J Clin Oncol 3:3–6
Koizumi W, Kurihara M, Tanabe S, Kondo I, Yamazaki I, Nonaka M, Shimamura Y, Saigenji K (1999) Advantages of Japanese response criteria for estimating the survival of patients with primary gastric cancer. Gastric Cancer 2:14–19
Lee JL, Kang YK, Kang HJ, Lee KH, Zang DY, Ryoo BY, Kim JG, Park SR, Kang WK, Shin DB, Ryu MH, Chang HM, Kim TW, Baek JH, Min YJ (2008) A randomised multicentre phase II trial of capecitabine vs S-1 as first-line treatment in elderly patients with metastatic or recurrent unresectable gastric cancer. Br J Cancer 99:584–590
Graziano F, Santini D, Testa E, Catalano V, Beretta GD, Mosconi S, Tonini G, Lai V, Labianca R, Cascinu S (2003) A phase II study of weekly cisplatin, 6S-stereoisomer leucovorin and fluorouracil as first-line chemotherapy for elderly patients with advanced gastric cancer. Br J Cancer 89:1428–1432
Santini D, Graziano F, Catalano V, Di Seri M, Testa E, Baldelli AM, Giordani P, La Cesa A, Spalletta B, Vincenzi B, Russo A, Caraglia M, Virzi V, Cascinu S, Tonini G (2006) Weekly oxaliplatin, 5-fluorouracil and folinic acid (OXALF) as first-line chemotherapy for elderly patients with advanced gastric cancer: results of a phase II trial. BMC Cancer 6:125
Acknowledgments
We thank the following investigators for their participation in the study: J Tanaka, H Niitani, K Nagao and T Nakajima. Thanks are also due to R Nagashima and M Kobayashi (TCOG) for help in preparing the report.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Koizumi, W., Akiya, T., Sato, A. et al. Phase II study of S-1 as first-line treatment for elderly patients over 75 years of age with advanced gastric cancer: the Tokyo Cooperative Oncology Group study. Cancer Chemother Pharmacol 65, 1093–1099 (2010). https://doi.org/10.1007/s00280-009-1114-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00280-009-1114-6