BACKGROUND: Despite bisphosphonate treatment, most patients with metastatic breast cancer will have either progressive bone metastases or skeletal related events (SREs). We evaluated the impact of second-line ibandronate on pain control and markers of bone turnover in these patients. METHODS: Patients with either an SRE or bony progression while on clodronate or intravenous (IV) pamidronate were switched to oral ibandronate 50 mg daily for 12 weeks. Pain scores and urinary N-telopeptide were evaluated weekly for 4 weeks and at weeks 8 and 12. There was no change in systemic anti-cancer treatment in the month before or after commencing study treatment. Palliative response was defined as a > or = two-unit reduction in the worst pain score. Patient preferences between IV and oral bisphosphonate therapy were assessed. RESULTS: Thirty women completed the study. By week 12, patients experienced a significant improvement in pain control (OR = 0.41; P = 0.028) with 12 of 26 (46.2%) evaluable patients achieving a palliative response. Of the 23 patients who had received first-line IV pamidronate, 20 of 23 (87.0%) preferred oral therapy. CONCLUSION: Patients with either progressive bone metastases or SREs while on clodronate or pamidronate may experience significant pain palliation with a switch to a more potent bisphosphonate. If confirmed by randomized trials, clinicians can start moving away from the paradigm whereby patients remain on a single bisphosphonate regimen throughout the course of their disease.
BACKGROUND: Despite bisphosphonate treatment, most patients with metastatic breast cancer will have either progressive bone metastases or skeletal related events (SREs). We evaluated the impact of second-line ibandronate on pain control and markers of bone turnover in these patients. METHODS:Patients with either an SRE or bony progression while on clodronate or intravenous (IV) pamidronate were switched to oral ibandronate 50 mg daily for 12 weeks. Pain scores and urinary N-telopeptide were evaluated weekly for 4 weeks and at weeks 8 and 12. There was no change in systemic anti-cancer treatment in the month before or after commencing study treatment. Palliative response was defined as a > or = two-unit reduction in the worst pain score. Patient preferences between IV and oral bisphosphonate therapy were assessed. RESULTS: Thirty women completed the study. By week 12, patients experienced a significant improvement in pain control (OR = 0.41; P = 0.028) with 12 of 26 (46.2%) evaluable patients achieving a palliative response. Of the 23 patients who had received first-line IV pamidronate, 20 of 23 (87.0%) preferred oral therapy. CONCLUSION:Patients with either progressive bone metastases or SREs while on clodronate or pamidronate may experience significant pain palliation with a switch to a more potent bisphosphonate. If confirmed by randomized trials, clinicians can start moving away from the paradigm whereby patients remain on a single bisphosphonate regimen throughout the course of their disease.
Authors: Louis S Matza; Lesley J Fallowfield; Karen C Chung; Brooke M Currie; Kate Van Brunt; Donald L Patrick Journal: Support Care Cancer Date: 2012-04 Impact factor: 3.603
Authors: Christina L Addison; Nathaniel Bouganim; John Hilton; Lisa Vandermeer; Susan Dent; Eitan Amir; Sean Hopkins; Iryna Kuchuk; Roanne Segal; Xinni Song; Stan Gertler; Sasha Mazzarello; George Dranitsaris; Daylily Ooi; Gregory Pond; Mark Clemons Journal: Breast Cancer Res Treat Date: 2014-03-18 Impact factor: 4.872
Authors: Demetrios Simos; Christina L Addison; Iryna Kuchuk; Brian Hutton; Sasha Mazzarello; Mark Clemons Journal: J Clin Med Date: 2013-08-19 Impact factor: 4.241