A single infusion of zoledronic acid produces sustained remissions in paget disease: Data to 6.5 years

Reid, Ian R., Lyles, Kenneth, Su, Guoqin, Brown, Jacques P., Walsh, John P., del Pino-Montes, Javier, Miller, Paul D., Fraser, William D., Cafoncelli, Susan, Bucci-Rechtweg, Christina and Hosking, David J. (2011) A single infusion of zoledronic acid produces sustained remissions in paget disease: Data to 6.5 years. Journal of Bone and Mineral Research, 26 (9). pp. 2261-2270. ISSN 1523-4681

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Two trials have shown that a single 5‐mg infusion of zoledronic acid achieves much higher response rates in Paget disease of bone than risedronate. The duration of this effect is unknown. We have conducted an open follow‐up of responders from the two trials (152 originally treated with zoledronic acid, 115 with risedronate) out to 6.5 years without further intervention. Endpoints were times to relapse (ie, return of serum total alkaline phosphatase activity to within 20% of the pretreatment value) or loss of response (response = normalization of alkaline phosphatase or 75% or greater reduction in its excess). Bone turnover markers were lower in the zoledronic acid group throughout follow‐up, with mean alkaline phosphatase (ALP) remaining within the reference range in these patients, whereas the mean in the risedronate group was above normal from 1 year. Relapse rates were substantially greater in the risedronate group (23 of 115, 20%) than in those treated with zoledronic acid (1 of 152, 0.7%, p < .001), and loss of response occurred in 19 (12.5%) zoledronic acid patients compared with 71 (62%) risedronate patients (p < .0001). Risk ratios for relapse and loss of response in zoledronic acid patients were 0.02 [95% confidence interval (CI) 0.00–0.18] and 0.12 (95% CI 0.07–0.19), respectively. Changes from baseline in quality of life, assessed using SF‐36 scores, were more positive in the zoledronic acid group across the follow‐up period (p = .01). Bone markers at 6 months were predictive of response duration. These data demonstrate an unprecedented duration of remission of Paget disease following treatment with zoledronic acid, accompanied by an improved quality of life. © 2011 American Society for Bone and Mineral Research

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User: Users 2731 not found.
Date Deposited: 02 Nov 2011 14:33
Last Modified: 23 Oct 2022 00:35
URI: https://ueaeprints.uea.ac.uk/id/eprint/35361
DOI: 10.1002/jbmr.438

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