Samarium-153-lexidronam complex for treatment of painful bone metastases in hormone-refractory prostate cancer

Oliver Sartor, Robert H. Reid, Peter J. Hoskin, Donald P. Quick, Peter J. Ell, Robert E. Coleman, Jon A. Kotler, Leonard M. Freeman, Pierre Olivier

Research output: Contribution to journalArticle

255 Scopus citations

Abstract

Objectives A Phase III randomized trial was designed to assess the effectiveness of samarium-153 (153Sm)-lexidronam for palliation of bone pain in patients with hormone-refractory prostate cancer. Methods A total of 152 men with hormone-refractory prostate cancer and painful bone metastases were enrolled in a prospective, randomized, double-blind trial comparing radioactive (153Sm) versus nonradioactive (152Sm) lexidronam complexes. Patients were randomized (2:1) to the radioactive ( 153Sm) agent. Patient diaries recording daily pain and analgesic use were completed during a planned 16-week evaluation period. Nonresponders were informed of the treatment received after 4 weeks of treatment and, if initially treated with placebo, were allowed to receive 153Sm-lexidronam in an open-label fashion. Pain was measured using validated patient-derived visual analog scales and pain descriptor scales. Results 153Sm-lexidronam had positive effects on measures of pain relief compared with placebo within 1 to 2 weeks. Reductions in opioid use were recorded at weeks 3 and 4. Because nonresponders were unblinded at week 4, statistical comparisons between the arms beyond week 4 were not possible. Mild, transient bone marrow suppression was the only adverse event associated with 153Sm-lexidronam administration. The mean nadir white blood cell and platelet count (3 to 4 weeks after treatment) was 3800/μL and 127,000/μL, respectively. Counts recovered to baseline after approximately 8 weeks. No grade 4 decreases in either platelets or white bloods cells were documented. Conclusions These findings demonstrate that 1 mCi/kg 153Sm-lexidronam is both safe and effective for the palliation of painful bone metastases in patients with hormone-refractory prostate cancer.

Original languageEnglish (US)
Pages (from-to)940-945
Number of pages6
JournalUrology
Volume63
Issue number5
DOIs
StatePublished - May 1 2004

    Fingerprint

ASJC Scopus subject areas

  • Urology

Cite this

Sartor, O., Reid, R. H., Hoskin, P. J., Quick, D. P., Ell, P. J., Coleman, R. E., Kotler, J. A., Freeman, L. M., & Olivier, P. (2004). Samarium-153-lexidronam complex for treatment of painful bone metastases in hormone-refractory prostate cancer. Urology, 63(5), 940-945. https://doi.org/10.1016/j.urology.2004.01.034