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[Members Only And Two Factor Auth.] J.Jpn. Surg. Soc.. 94(7): 730-735, 1993
Original article
HORMONE THERAPY OF TAMOXIFEN IN RESECTED CARCINOMA OF THE PANCREAS
Greenway et al reported estrogen receptor exsisted in the carcinoma of the exocrine pancreas in 1981. We followed the study by using immunohistochemical method with monoclonal antibody ER-D5 (Amersham) and found high levels of estrogen receptor in 21 cases out of 27 carcinomas of the pancreas (77.8%). Furthermore, we gave randomly the hormone therapy by Tamoxifen 20mg per day adding to immuno-chemotherapy (Tegaful, Mitomycin, Krestin, OK-432) to the patients with resected carcinoma of the pancreas. There was no significant difference of the survival rate of pancreatic carcinoma without hormone therapy between 10 cases with estrogen receptor and 4 cases without estrogen receptor at the 6th month and 12th month. However, in cases treated by Tamoxifen, remarkable high survival rate at 12 months of 11 cases with estrogen receptor was obtained to be 85.7% according to Kaplan-Meier method. Two cases without esrogen receptor died within 5 months. One year survival rate of Tamoxifen group (13 cases) was 78.6% and that of non Tamoxifen group (14 cases) was 21.4%.
These findings indicated that estrogen receptor existed at the high level in the carcinoma tissues of the pancreas and anti-estrogen treatment might offer a new approach to the treatment of pancreatic carcinomas.
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