The assessment of randomized double blind clinical trial of Shugan-liangxue prescription used for the treatment of hot flashes in breast cancer patients

Abstract

8584 Background: Hot flashes are a common side effect for breast cancer (BC) pts with TAM treatment. Traditional Chinese medicine (TCM) is typically given to BC pts in China. This trial is to assess the effects of TCM for relieving hot flashes. TCM oral solution is prescribed for clearing heat and cooling blood. The compound was tested and contained no phytoestrogen. A randomized, double blind clinical trial was designed to examine the effects of TCM over a 3-week period. Methods: From October 2004 to October 2005, 49 BC pts undergoing treatment with TAM who having hot flashes at least 3 times a day involved the study. Daily average of hot flashes was recorded by the pts for a week as a baseline. TCM or placebo liquid (100 ml) was administered orally three times a day for 3 weeks by a randomized double-blind method. The number of hot flashes and quantity of sleep disturbance in the two groups were evaluated. Results: 45 pts were evaluated in TCM group (n = 22) and the placebo group (n = 23). The severity of the hot flash symptoms was evaluated according to the Kupperman menopausal index (KI). Pts were distributed approximately equally between the two groups. There were 31% (7/22) and 26% (6/23)pts with mild hot flashes in TCM and placebo groups, and 68% (15/22) and 73% (17/23) with severe hot flashes in TCM and placebo groups. Hot flash relief was described as either symptom disappearing, a decrease from severe to mild symptoms, or no change. In TCM group, 50% showed no change, 27% decrease and 23% symptoms disappearing. In the placebo group, 70% no change, 30% decrease and no pts reporting symptoms disappearing. A statistically significant difference exists between the two groups (P < 0.05). In TCM group, 73% of pts sleep improvement compared to 35% in the placebo group (P < 0.05). No adverse events or any side effects were reported. Conclusion: The oral solution of TCM is effective in alleviating tamoxifen-induced hot flashes and sleep disturbance. The study of the drug’s mechanism and an expanded clinical trial are underway. No significant financial relationships to disclose.