TY - JOUR AU1 - KUMAOKA,, SOICHI AU2 - TAKATANI,, OSAMU AU3 - YOSHIDA,, MINORU AU4 - MIURA,, SHIGETO AU5 - TAKAO,, TETSUTO AU6 - HAMANAKA,, YÜJI AU7 - IZUO,, MASARU AU8 - OKADA,, TADAKAZU AB - Abstract A new orally active anti-estrogenic steroid, 2α,3α-epithio-5α-androstan-17β-yl 1-methoxycyclopentyl ether (10364-S) was given to 41 advanced breast cancer patients. Most patients were given a daily dose of 20 mg. The study was preliminary and not a controlled trial using an already proven androgenic steroid. The remission rate on giving this compound to advanced breast cancer was 11/41 or 26.8% and the average duration of the remission was 10.5 months. Hoarseness (8/41, 19.5%) and hirsutism (5/41, 12.2%) were relatively often seen as virilizing side effects. No unfavorable effects on the hematopoietic organs, the liver or on calcium metabolism were recognized in the study. This content is only available as a PDF. © 1974 JAPANESE JOURNAL OF CLINICAL ONCOLOGY TI - 2α,3α-Epithio-5α-androstan-17β-yl 1-Methoxycyclopentyl Ether in the Treatment of Advanced Breast Cancer —A Preliminary Clinical Trial— JF - Japanese Journal of Clinical Oncology DO - 10.1093/oxfordjournals.jjco.a039837 DA - 1974-06-01 UR - https://www.deepdyve.com/lp/oxford-university-press/2-3-epithio-5-androstan-17-yl-1-methoxycyclopentyl-ether-in-the-ihDLdf0GwR SP - 65 EP - 68 VL - 4 IS - 1 DP - DeepDyve ER -