Efficacy of Chronic Oral Etoposide and Tamoxifen in the Far-Advanced Hepatocellular Carcinoma

Kim, Ho Young; Lee, Chong In; Shim, Kwang Yong; Kim, Yong Tai; Kim, Jae Gwon; Kim, Min Soo; Baik, Soon Ku; Lee, Dong Ki; Kwon, Sang Ok; Shim, Young Hak; Jang, Woo Ick

Abstract

BACKGROUND/AIMS: This study evaluated the use and efficacy of chronic oral etoposide plus tamoxifen as a palliative treatment in 30 patients with far-advanced HCC in whom surgical resection, percutaneous ethanol injection or transarterial chemoembolization(TACE) was not possible.
METHODS
To be eligible for the study, patients had to have objectively measurable or evaluable tumors, adequate hematologic profiles and hepatorenal functions, had to be between 20 and 75 years of age, and had to have an ECOG performance status of less than or equal to 2. The treatment included etoposide, 50 mg/m2/day, taken orally for 21 days, and tamoxifen, 40 mg/day, taken orally for 21 days. Each cycle was repeated every 5 weeks.
RESULTS
Two patients(7%) achieved a partial response(PR) and 16 patients(53%) achieved a stable disease(SD) with a median time-to-progression of 5 months(range: 2-24). Median of patients survival with the response of PR or SD and those patients with the response of progressive disease(PD) was 10 months and 7 months, respectively(p=0.0004). Of the 20 patients with initial elevated serum alpha-fetoprotein(> or =500 ng/ml), 9 patients(45%) experienced a significant(> or =50%) decrease in their values after chemotherapy and all 9 patients achieved objective tumor response of more than or equal to SD. Among the 30 patients in the study, 10 patients(33%) achieved performance status improvements of grade according to the ECOG criteria and 6 patients(20%) experienced improvements of subjective symptoms, such as abdominal pain, abdominal fullness and anorexia.
CONCLUSION
Based on our results, the use of chronic oral etoposide plus tamoxifen as a palliative treatment for the far-advanced hepatocellular carcinoma are beneficial. A randomized two-arm study may be warranted to validate the results of this study.