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  • Title: [Strontium-89: a desirable therapeutic for bone metastases of prostate cancer].
    Author: Ma YB, Yan WL, Dai JC, Xu F, Yuan Q, Shi HH.
    Journal: Zhonghua Nan Ke Xue; 2008 Sep; 14(9):819-22. PubMed ID: 18998467.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of strontium-89 (89Sr) in the treatment of painful bone metastases of prostate cancer. METHODS: A total of 116 patients with painful bone metastases of prostate cancer received bilateral orchiectomy and incretion, followed by intravenous injection of 89Sr at the dose of 1.48-2.22 MBq (40-60 microCi)/kg. The clinical effects were evaluated by follow-up analysis. RESULTS: After the 89Sr treatment, appetite and sleep were evidently improved in 33.6% and 56.0% of the patients respectively, the applied dose of anodyne reduced in 61.2%, pain alleviated in 83.6%, with an absolute palliation rate of 24.1%. Pain relief started at 3-21 (10.2 +/- 6.5) days and lasted 3-12 (5.3 +/- 2.2) months. Flare ache occurred in 31.9% of the patients. Compared with pre-treatment, the mean score on Karnofsky's performance status (KPS) was 20.0% higher, and the WBC count decreased to 3.0-3.9 x 10(6)/L in 18.1% of the patients. Whole body bone scintigraphy of 53 followed-up patients showed that 39 (73.6%) of them exhibited an obvious decrease in the number of metastases, 10 (18.9% remained in a stabilized state and only 4 (7.5% deteriorated. CONCLUSION: 89Sr, capable of inhibiting bone metastasis, palliating pain and improving the quality of life with few adverse effects, can be used as a desirable therapeutic for painful bone metastases of prostate cancer.
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