Preliminary Application Of Strontium-89 For The Treatment Of Bone Metastases From Prostate Cancer

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2010 Dec;27(6):1251-4. Zhao W, Deng H, Jie P, Qing C, Zhang X.

Department of Nuclear Medicine, West China Hospital of Sichuan
University, Chengdu 610041, China.
Abstract

Bone metastases are a major problem in the clinical management of patients with prostate cancer. Despite the use of analgesic for the relief of such pain, the outcomes are not often satisfactory.

Strontium-89 (89Sr) is a pure beta-emitting radioisotope to be avidly concentrated in the areas of high osteoblastic activity. The aim of this study was to evaluate the efficacy of 89Sr in the therapy for bone metastases of prostate carcinoma. 116 patients received intravenous injection of 89Sr at the dose of 3mCi (111MBq). All patients underwent physical examination and Karnofsky’s Performance Score (KPS) evaluation before and after administration; the analgesic effects were evaluated by scores of pain. The complete response (CR) was defined as scores of pain > 75%; no response (NR) was defined as scores of pain < 25% the remaining was partial response (PR). The changes of bone metastases were screened by CT, MRI and 99mTc-MDP bone scintigraphy according to the standards of WHO. After the treatment with 89Sr, the total response rate was 80.2%. In the 116 cases, 21 cases (18.1%) displayed complete response and 72 cases (62.1%) displayed partial response, but 23 cases (19.2%) showed no response.

The mean score on Karnfsky’s performance status (KPS) was 20.0% higher. About 1/3 cases exhibited an obvious decrease in the number of metastases, and some foci disappeared. Thirteen cases (12%) showed a greater decrease in prostate-specific antigen (PSA) value. 89Sr chloride is an effective and safe therapy of the bone metastases from prostate cancer.

PMID: 21374974 [PubMed – in process]
1. [Preliminary application of strontium-89 for the treatment of bone metastases from prostate cancer].
Zhao W, Deng H, Jie P, Qing C, Zhang X.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2010 Dec;27(6):1251-4. Chinese.
PMID: 21374974 [PubMed – in process]
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Source: http://www.ncbi.nlm.nih.gov/pubmed/21374974

On May 19th, 2014, posted in: 2011, Bio-Nucleonics News by