Pooled Analysis of S-1 Trials in Non-Small Cell Lung Cancer According to Histological Type
! \5 H# V* y7 H( nNOBUYUKI YAMAMOTO1, TAKEHARU YAMANAKA2, YUKITO ICHINOSE3, KAORU KUBOTA4, HIROSHI SAKAI5, AKIHIKO GEMMA6, NAGAHIRO SAIJO7, MASAHIRO FUKUOKA8 and HISANOBU NIITANI9 0 c4 @* B0 L1 z& x0 Y
+ Author Affiliations0 K, E( l O+ G- X! j/ q
9 {' B- r( J$ J$ V+ G7 `* C1Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka 411-8777, Japan
' ?2 g2 C9 m6 L& d s, C2Cancer Biostatistics Laboratory, Institute for Clinical Research, National Kyushu Cancer Center, Fukuoka 811-1395, Japan
% d/ X; E" f7 g+ b8 a+ ~$ x3Department of Thoracic Oncology, National Kyushu Cancer Center, Fukuoka 811-1395, Japan 3 Z" F* X) Q; P; }0 d
4Division of Thoracic Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan 9 M% f8 ^2 v4 b4 ^: d
5Division of Thoracic Oncology, Saitama Cancer Center, Saitama 362-0806, Japan
: Q: F" y: \( [) j% i9 C6Division of Pulmonary Medicine, Infectious Diseases, and Oncology Department of Internal Medicine, Nippon Medical School, Tokyo 113-8603, Japan
0 R8 j% a/ H7 N+ O3 F, u7Kinki University School of Medicine, Osaka 589-8511, Japan ; {( A( T4 E' A2 r
8Izumi Municipal Hospital, Osaka 594-0071, Japan + o( J% \" x# H Q) g8 r
9Tokyo Cooperative Oncology Group, Tokyo 105-0013, Japan , B, C7 ]) N. I8 }8 s& o8 ?) K0 ]% T
Correspondence to: Nobuyuki Yamamoto, Division of Thoracic Oncology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8777, Japan. Tel: +81 559895222, Fax: +81 559895783, e-mail: n.yamamoto@scchr.jp
$ t; j* o$ d) T7 C5 |AbstractBackground: The antimetabolic agent S-1 inhibits thymidylate synthase similar to pemetrexed, but through a different mechanism of action. Whether the antitumour activity of S-1 depends on histological type remains unclear. We analysed pooled data from 2 phase II clinical studies of cisplatin and S-1 in patients with previously untreated advanced non-small cell lung cancer. Patients and Methods: We comprised 110 patients with stage IIIB or IV non–small cell lung cancer. Univariate and multivariate analyses were performed to determine the effects of histological type on progression-free survival and response rates. Results: On pooled analysis of the data, according to histological type, median progression-free survival was 3.8 months in patients with squamous cell carcinoma and 4.4 months in those with non-squamous cell carcinoma. Both analyses showed that progression-free survival and response rate did not differ significantly. Conclusion: Unlike molecular targeted agents and pemetrexed, a combination of cisplatin and S-1 may be no difference in response according to histological type.
0 S1 x0 ?# L1 \) j0 G- p6 ^ W6 q, |, {
|