skeletal complication
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1999 ◽  
Vol 106 (10) ◽  
pp. 1096-1097 ◽  
Author(s):  
Jean Sibilia ◽  
Rose-Marie Javier ◽  
Claude Werle ◽  
Jean Louis Kuntz

1999 ◽  
Vol 17 (3) ◽  
pp. 846-846 ◽  
Author(s):  
Richard L. Theriault ◽  
Allan Lipton ◽  
Gabriel N. Hortobagyi ◽  
Richard Leff ◽  
Stefan Glück ◽  
...  

PURPOSE: To assess whether pamidronate can reduce the frequency of skeletal morbidity in women with lytic bone metastases from breast cancer treated with hormone therapy. PATIENTS AND METHODS: Three hundred seventy-two women with breast cancer who had at least one lytic bone lesion and who were receiving hormonal therapy were randomized to receive 90 mg of pamidronate or placebo as a 2-hour intravenous infusion given in double-blind fashion every 4 weeks for 24 cycles. Patients were evaluated for skeletal complications: pathologic fractures, spinal cord compression, irradiation of or surgery on bone, or hypercalcemia. The skeletal morbidity rate (the ratio of the number of skeletal complications to the time on trial) was the primary efficacy variable. Bone pain, use of analgesics, quality of life, performance status, bone tumor response, and biochemical parameters were also evaluated. RESULTS: One hundred eighty-two patients who received pamidronate and 189 who received placebo were assessable. The skeletal morbidity rate was significantly reduced at 12, 18, and 24 cycles in patients treated with 90 mg of pamidronate (P = .028, .023, and .008, respectively). At 24 cycles, the proportion of patients having had any skeletal complication was 56% in the pamidronate group and 67% in the placebo group (P = .027). The time to the first skeletal complication was longer for patients receiving pamidronate than for those given placebo (P = .049). There was no statistical difference in survival or in objective bone response rate. Pamidronate was well tolerated. CONCLUSION: Treatment with 90 mg of pamidronate as a 2-hour intravenous infusion every 4 weeks in addition to hormonal therapy significantly reduces skeletal morbidity from osteolytic metastases.


1998 ◽  
Vol 16 (6) ◽  
pp. 2038-2044 ◽  
Author(s):  
G N Hortobagyi ◽  
R L Theriault ◽  
A Lipton ◽  
L Porter ◽  
D Blayney ◽  
...  

PURPOSE Pamidronate, an aminobisphosphonate, has been shown to lower the risk of skeletal complications associated with lytic bone lesions for up to 1 year in women with stage IV breast cancer who received chemotherapy. We studied the long-term effectiveness and safety of continued treatment with intravenous pamidronate infusions for up to 2 years. PATIENTS AND METHODS Three hundred eighty-two women with metastatic breast cancer and lytic bone lesions who received chemotherapy were randomly assigned to receive either 90 mg of pamidronate or placebo intravenously every 3 to 4 weeks in this double-blind, multicenter, parallel-group trial. Patients were evaluated monthly for 2 years for skeletal complications, which included pathologic fractures, need for radiation or surgery to treat bone complications, spinal cord compression, and hypercalcemia. Bone pain, analgesic use, bone biochemical markers, performance status, quality of life, radiologic response in bone, and survival were also evaluated. RESULTS As in the first year of treatment, the proportion of patients with any skeletal complication was significantly less for the pamidronate than the placebo group at 15, 18, 21, and 24 months (P < .001). The proportions of patients with any pathologic fracture (i.e., vertebral and nonvertebral fractures), need for radiation or surgery to treat bone complications, and hypercalcemia were also statistically less for the pamidronate than the placebo group. The median time to the first skeletal complication was 13.9 months in the pamidronate-treated women and 7.0 months in the placebo group (P < .001). Long-term treatment did not result in any unexpected adverse events. Survival did not differ between the two groups. CONCLUSION The risk for osteolytic bone lesion complications in metastatic breast cancer was significantly decreased with monthly infusions of 90 mg of pamidronate, and this effect was maintained for at least 2 years. Pamidronate is a useful adjunct to standard chemotherapy in the palliative treatment of metastatic breast cancer.


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