Strontium-89 as an adjuvant to external beam radiation improves pain relief and delays disease progression in advanced prostate cancer: results of a randomized controlled trial.

  • 1 June 1993
    • journal article
    • clinical trial
    • Vol. 20, 38-43
Abstract
In a multicenter, randomized controlled trial involving 126 patients with endocrine-resistant advanced prostate cancer, all of whom received external beam radiotherapy, additional treatment with a single injected dose of 400 MBq strontium-89 (Metastron) significantly improved overall pain control. Adjuvant therapy with strontium-89 also significantly reduced analgesia requirements compared with placebo and delayed disease progression, as indicated by the requirement for further external beam radiotherapy. On certain measures, patients receiving strontium-89 also showed enhanced quality of life. Accompanying these changes, levels of prostate tumor markers were significantly reduced by strontium-89 treatment. The benefits resulting from adjuvant strontium therapy were associated with tolerable hematologic toxicity. The addition of strontium-89 to external beam radiation had no effect on survival. However, it has clear implications for improved palliation in advanced prostate cancer and may also impact positively on treatment costs.

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