RT Journal Article SR Electronic T1 Successful S-1 Monotherapy for Chemorefractory Thymic Carcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 299 OP 301 VO 31 IS 1 A1 TOMONOBU KOIZUMI A1 TOSHIHIKO AGATSUMA A1 YOSHIMICHI KOMATSU A1 KEISHI KUBO YR 2011 UL http://ar.iiarjournals.org/content/31/1/299.abstract AB The optimal chemotherapeutic regimen for inoperable thymic carcinoma remains uncertain and little information is available regarding the usefulness of salvage chemotherapy. S-1, a newly developed oral fluorouracil antitumor drug, has been reported to be effective in the treatment of gastrointestinal tumors and non-small cell lung cancer. This case study reports a case of chemorefractory thymic cancer with a good response to S-1 monotherapy. S-1 was used as sixth-line chemotherapy and the response was the first remarkable tumor regression in the patient's clinical course. S-1 appears to have significant activity against thymic carcinoma.