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Denosumab or Zometa for protection of bones in breast cancer


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Jim Marshall (not a doctor) said ...

In the study by Cleeland and colleagues below, in metastatic breast cancer, Denosumab was better than Zometa at pain prevention.

Both Denosumab and Zometat are available in Australia and covered by the PBS (Pharmaceutical Benefits Scheme)

For a comparison of the two in prostate cancer see our topic:

Denosumab or Zometa for protection of bones in prostate cancer

... end Jim

Cancer. 2012 Sep 5. doi: 10.1002/cncr.27789. [Epub ahead of print]

Pain outcomes in patients with advanced breast cancer and bone metastases: Results from a randomized, double-blind study of denosumab and zoledronic acid.

Cleeland CS, Body JJ, Stopeck A, von Moos R, Fallowfield L, Mathias SD, Patrick DL, Clemons M, Tonkin K, Masuda N, Lipton A, de Boer R, Salvagni S, Oliveira CT, Qian Y, Jiang Q, Dansey R, Braun A, Chung K.

Source

University of Texas, M. D. Anderson Cancer Center, Department of Symptom Research, Houston, Texas. ccleeland@mdanderson.org.

Abstract

BACKGROUND:

In this study, the authors evaluated the effect of denosumab versus zoledronic acid (ZA) on pain in patients with advanced breast cancer and bone metastases.

METHODS:

The prevention of pain, reduction in pain interference with daily life activities, and the proportion of patients requiring strong opioid analgesics were assessed in a randomized, double-blind, double-dummy phase 3 study comparing denosumab with ZA for preventing skeletal-related events in 2046 patients who had breast cancer and bone metastases. Patients completed the Brief Pain Inventory-Short Form at baseline and monthly thereafter.

RESULTS:

Fewer patients who received denosumab reported a clinically meaningful worsening of pain severity (≥2-point increase) from baseline compared with patients who received ZA, and a trend was observed toward delayed time to pain worsening with denosumab versus ZA (denosumab, 8.5 months; ZA, 7.4 months; P = .08). In patients who had no/mild pain at baseline, a 4-month delay in progression to moderate/severe pain was observed with denosumab compared with ZA (9.7 months vs 5.8 months; P = .002). Denosumab delayed the time to increased pain interference by approximately 1 month compared with ZA (denosumab, 16.0 months; ZA, 14.9 months; P = .09). The time to pain improvement (P = .72) and the time to decreased pain interference (P = .92) were similar between the groups. Fewer denosumab-treated patients reported increased analgesic use from no/low use at baseline to strong opioid use.

CONCLUSIONS:

Denosumab demonstrated improved pain prevention and comparable pain palliation compared with ZA. In addition, fewer denosumab-treated patients shifted to strong opioid analgesic use. Cancer 2012. © 2012 American Cancer Society.

Copyright © 2012 American Cancer Society.

PMID: 22951813

This extract can be found on http://PubMed.com, and is in the public domain.

On PubMed.com there will be a link to the full paper (often $30, sometimes free).

Any highlighting (except the title) is not by the author, but by Jim Marshall.

Jim is not a doctor.

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