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Old 11-15-2006, 07:30 PM   #1
Lani
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here is an earlier article...in segments due to 2500 character restriction

Drugs. 2004;64(11):1197-211. Links
Zoledronic acid: a review of its use in patients with advanced cancer.

Perry CM,
Figgitt DP.
Adis International Limited, Auckland, New Zealand. demail@adis.co.nz
Zoledronic acid (Zometa), a parenteral bisphosphonate, is an inhibitor of osteoclast-mediated bone resorption and is used in the management of patients with cancer. Zoledronic acid 4 mg is administered as an intravenous infusion over 15 minutes. In the treatment of bone metastases, zoledronic acid is the first and only bisphosphonate to demonstrate efficacy in patients with a broad range of tumour types and in multiple myeloma. In well-designed trials, a single 4 mg dose of zoledronic acid showed good efficacy in the treatment of patients with hypercalcaemia of malignancy. Zoledronic acid 4 mg was superior to pamidronic acid 90 mg, administered as a 2-hour infusion, as assessed by normalised serum calcium concentrations 10 days after administration. In conjunction with antineoplastic therapy, zoledronic acid was an effective long-term (up to 25 months) treatment for skeletal-related events in patients with bone metastases associated with multiple myeloma or solid tumours. In patients with bone metastases secondary to breast cancer or bone lesions from myeloma, zoledronic acid was at least as effective as pamidronic acid, based on assessments of skeletal-related events 25 months after the start of treatment. In addition, compared with pamidronic acid, the overall risk of developing skeletal complications, including hypercalcaemia of malignancy, was significantly reduced in recipients of zoledronic acid. Compared with pamidronic acid, zoledronic acid reduced the risk of patients with breast cancer developing a skeletal-related event by an additional 20%.
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Old 11-15-2006, 07:30 PM   #2
Lani
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continued...

Zoledronic acid was significantly more effective than placebo on most efficacy measures in patients with bone metastases secondary to other solid tumours (e.g. lung, prostate) and showed sustained efficacy for up to 15 months. Preliminary data indicate that its efficacy in these patients is sustained for up to 24 months. Estimates of the cost effectiveness of zoledronic acid in the treatment of prostate cancer were consistent with those of other bisphosphonates, and cost-effectiveness ratios were within limits considered acceptable economic value. Zoledronic acid was generally well tolerated, with a tolerability profile similar to that of pamidronic acid and placebo. As with other bisphosphonates, deterioration of renal function has occasionally been reported in patients receiving zoledronic acid and monitoring of serum creatinine is recommended during treatment. The efficacy of zoledronic acid is therefore well established in patients with hypercalcaemia of malignancy and, for up to 25 months, in the treatment of complications arising from metastatic bone disease in patients with multiple myeloma or solid tumours. The clinical profile of zoledronic acid compares favourably with that of pamidronic acid in patients with cancer and zoledronic acid has a more convenient administration schedule with the potential for better compliance. Thus, zoledronic acid is an effective bisphosphonate and is positioned to play an important role in the management of advanced cancer patients with bone metastases.
PMID: 15161327 [PubMed - indexed for MEDLINE]
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Old 11-15-2006, 07:39 PM   #3
Lani
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putting the thinking cap on...

It may not be possible to do the vertebroplasty at any site that was already irradiated (radiation makes wound healing very slow) but it is unclear how wide the radiation field was (do you know?)

Also, if your mother's kidney function is not tip-top they may feel bisphosphonates are too risky;

Here is an article recommending radiating less times with a higher radiation dose:

ABSTRACT: Prospective randomised multicenter trial on single fraction radiotherapy (8 Gy X 1) versus multiple fractions (3 Gy X 10) in the treatment of painful bone metastases [Radiotherapy & Oncology]
Background and purpose: To investigate whether single-fraction radiotherapy is equal to multiple fractions in the treatment of painful metastases.

Patients and methods: The study planned to recruit 1000 patients with painful bone metastases from four Norwegian and six Swedish hospitals. Patients were randomized to single-fraction (8 Gy x 1) or multiple-fraction (3 Gy x 10) radiotherapy. The primary endpoint of the study was pain relief, with fatigue and global quality of life as the secondary endpoints.

Results: The data monitoring committee recommended closure of the study after 376 patients had been recruited because interim analyses indicated that, as in two other recently published trials, the treatment groups had similar outcomes. Both groups experienced similar pain relief within the first 4 months, and this was maintained throughout the 28-week follow-up. No differences were found for fatigue and global quality of life. Survival was similar in both groups, with median survival of 8-9 months.

Conclusions: Single-fraction 8 Gy and multiple-fraction radiotherapy provide similar pain benefit. These results, confirming those of other studies, indicate that single-fraction 8 Gy should be standard management policy for these patients.
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Old 11-15-2006, 07:48 PM   #4
Lani
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My ruminations...

especially since she lives in Florida

One thought: Get her in a pool. If it is above shoulder height it will mostly likely greatly reduce the force of gravity on her spine and relieve that part of her pain that is from the bone being too weak or the nerves being pinched. If there is something from the metastasis itself causing her pain (chemical rather than mechanical) this may not relieve her pain, but warm water is quite soothing and may give her some emotional relief.

Press her doctor on what pain relief methods may be available--I read about people abusing "fentanyl patches" which were meant for cancer patients. Many of these may be too strong for people of her age, especially if her liver or kidney function are not optimal.

If nothing else, you might ask to try a TENS machine. It works on the principal that, if you stub your toe AND THEN bite your finger, the latter relieves some of the pain of the former, as the brain cannot process two signals approaching it simultaneously from two places very well--it dampens the pain. The electrodes need to be placed between "the pain and the brain" so I guess up below her neck??? A pain specialist or physical therapist may be able to help you.

Again, I am just sharing information not making recommendations. I do
not claim ANY expertise. Just trying to pick my brain to see if I can impart any helpful information.
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Old 11-15-2006, 08:08 PM   #5
Nguyen
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Many thanks for taking the time to share your knowledge!!!

- Nguyen
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Old 11-15-2006, 08:27 PM   #6
skibunny
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Smile Thank you

Lani, thank you so much. Zometa was something my mom's Dr. had mentioned. I will pursue this further.

Skibunny
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Old 11-15-2006, 09:53 PM   #7
Bev
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SkiB, My mom had the cement injection for OsteoP and it did not do the trick. I'm sure there are a ton of variables. It just doesn't always work. I'm glad I came upon this topic and wish I had more to offer. BB
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