Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2018
ACUTE PHASE REACTIONS AFTER ZOLEDRONIC ACID INFUSION: PROTECTIVE ROLE OF 25-HYDROXYVITAMIN D AND PREVIOUS ORAL BISPHOSPHONATE THERAPY.
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Crotti Chiara, Watts Nelson B, De Santis Maria, Ceribelli Angela, Fabbriciani Gianluigi, Cavaciocchi Francesca, Marasini Bianca, Selmi Carlo, Massarotti Marco
Аннотация
OBJECTIVE: The most common adverse reaction to zoledronic acid (ZOL) infusion is the acute phase reaction (APR), characterized by transient, usually mild, flu-like symptoms. Previous treatment with oral amino-bisphosphonates (BPs) was reported as an independent protective factor for APR, and an association between APR and 25-hydroxyvitamin D (25(OH)D) levels in BP-naïve patients treated with ZOL was identified. The aims of our study were to confirm this association and to see if it was different in patients previously treated with oral BPs compared with BP-naïve patients and to investigate the role of 25(OH)D for the time of APR onset.
METHODS: We included 153 consecutive patients with postmenopausal osteoporosis undergoing their first ZOL infusion. Sixty-eight had been previously treated with oral BPs. Clinical, demographic, and serologic data were recorded.
RESULTS: 25(OH)D levels were significantly lower in patients experiencing APR compared to patients without APR (26.3 ± 12.7 vs. 37.0 ± 13.5 ng/mL, respectively; P<.0001). Patients with 25(OH)D <30 ng/mL had a significantly higher risk of APR (odds ratio [OR] 4.2 [95% confidence interval [CI] 2.1-8.2]) occurring in 65%. APR was significantly less frequent in patients previously treated with oral BPs than in BP-naïve subjects (33.8% [23/68] vs 52.9% [45/85], P = .018), but only a weak association remained after correction for 25(OH)D (OR 0.5, 95% CI 0.3-1.1, P = .08).
CONCLUSION: Higher baseline 25(OH)D levels appear to be protective for APR post-ZOL infusion. The role of previous treatment with oral BPs as an independent protective factor for APR should be evaluated in a larger cohort.
ABBREVIATIONS: APR = acute phase reaction; BPs = amino-bisphosphonates; CI = confidence interval; 25(OH)D = 25-hydroxyvitamin D; OP = osteoporosis; OR = odds ratio; PTH = parathyroid hormone; ROC = receiver operating characteristic; ZOL = zoledronic acid.
METHODS: We included 153 consecutive patients with postmenopausal osteoporosis undergoing their first ZOL infusion. Sixty-eight had been previously treated with oral BPs. Clinical, demographic, and serologic data were recorded.
RESULTS: 25(OH)D levels were significantly lower in patients experiencing APR compared to patients without APR (26.3 ± 12.7 vs. 37.0 ± 13.5 ng/mL, respectively; P<.0001). Patients with 25(OH)D <30 ng/mL had a significantly higher risk of APR (odds ratio [OR] 4.2 [95% confidence interval [CI] 2.1-8.2]) occurring in 65%. APR was significantly less frequent in patients previously treated with oral BPs than in BP-naïve subjects (33.8% [23/68] vs 52.9% [45/85], P = .018), but only a weak association remained after correction for 25(OH)D (OR 0.5, 95% CI 0.3-1.1, P = .08).
CONCLUSION: Higher baseline 25(OH)D levels appear to be protective for APR post-ZOL infusion. The role of previous treatment with oral BPs as an independent protective factor for APR should be evaluated in a larger cohort.
ABBREVIATIONS: APR = acute phase reaction; BPs = amino-bisphosphonates; CI = confidence interval; 25(OH)D = 25-hydroxyvitamin D; OP = osteoporosis; OR = odds ratio; PTH = parathyroid hormone; ROC = receiver operating characteristic; ZOL = zoledronic acid.