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Spångeus A, Rydetun J, Woisetschläger M. Prevalence of denosumab-induced hypocalcemia: a retrospective observational study of patients routinely monitored with ionized calcium post-injection. Osteoporos Int 2024; 35:173-180. [PMID: 37750930 PMCID: PMC10786736 DOI: 10.1007/s00198-023-06926-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/19/2023] [Indexed: 09/27/2023]
Abstract
We assessed the prevalence of hypocalcemia after denosumab injections in a real-world cohort routinely monitored for calcium during up to 7.5 years of treatment. Among 1096 injections in 242 patients, 6.3% resulted in hypocalcemia, and was independent of the injection number. Severe hypocalcemia was rare (1%). PURPOSE To assess the prevalence of and risk factors for hypocalcemia after administration of denosumab in a patient cohort routinely monitored for ionized calcium after each dose. METHODS In this retrospective observational study, we analyzed denosumab-induced hypocalcemia in a real-world cohort who were routinely followed up with ionized calcium pre- and post-injection (within 31 days after injection) during the period 2011 to 2020. RESULTS In total, we included data from 1096 denosumab injections in 242 individuals (1-15 injections per patient). The mean age for the first injection was 74 ± 10 years, and 88% were female. Post-injection hypocalcemia occurred after 6.3% of all injections (4.6% mild, 0.6% moderate, and 1.1% severe) and was independent of the number of injections (rate of hypocalcemia varied from 3-8%). Risk factors for hypocalcemia were male sex, severe renal failure, pre-injection hypocalcemia, hypomagnesemia, hypophosphatemia, and vitamin D insufficiency. Furthermore, older age was not associated with an increased hypocalcemia risk. CONCLUSIONS Denosumab-induced hypocalcemia is a prevalent adverse event, which occurs independently of the number of injections. However, severe hypocalcemia is a rare occurrence, and severe renal failure and nutritional status appear to be important predictive factors. Magnesium and phosphate might add value in the pre-injection risk assessment; however, this observation needs to be confirmed in larger cohorts.
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Affiliation(s)
- Anna Spångeus
- Department of Acute Internal Medicine and Geriatrics, Department of Medical and Health Sciences, Linköping University Hospital, Linköping University, Building 444, Level 11, Campus US, 581 83, Linköping, Sweden.
- Division of Diagnostics and Specialist Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
| | - Johan Rydetun
- Department of Acute Internal Medicine and Geriatrics, Department of Medical and Health Sciences, Linköping University Hospital, Linköping University, Building 444, Level 11, Campus US, 581 83, Linköping, Sweden
| | - Mischa Woisetschläger
- Division of Diagnostics and Specialist Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
- Department of Radiology, Linköping University Hospital, Linköping, Sweden
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Hattori K, Takahashi N, Kojima T, Imagama S. Predictive factors for achievement of treatment goals in patients with postmenopausal osteoporosis treated with denosumab. Mod Rheumatol 2023; 33:217-223. [PMID: 34939114 DOI: 10.1093/mr/roab129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 01/05/2023]
Abstract
OBJECTIVES To investigate efficacy of long-term treatment with denosumab and predictive factors for achievement of treatment goals in patients with postmenopausal osteoporosis (PMO). METHODS We enrolled 111 PMO patients who had T-scores ≤-2.5 either at the lumbar spine (L-) or femoral neck (FN-), who had never been treated for osteoporosis, and who could be followed for at least 3 years. We first evaluated changes in bone mineral density (BMD) for up to 7 years. We next defined the treatment goal as the achievement of a T-score >-2.5 at month 36 and performed multivariate analysis to identify predictive factors for achievement of the goal. RESULTS Lumbar spine- and femoral neck bone-mineral density increased yearly for 7 years. Among 87 patients with baseline L-T-scores ≤-2.5, better baseline L-T-scores predicted achievement of L-T-scores >-2.5 at month 36. The cut-off value for baseline L-T-score was -3.4. Among 76 patients with baseline FN-T-scores ≤-2.5, better baseline FN-T-scores predicted achievement of FN-T-scores >-2.5 at month 36. The cut-off value for baseline FN-T-scores was -2.8. CONCLUSIONS Long-term treatment with denosumab was effective in PMO patients. As better baseline T-score predicted achievement of T-scores >-2.5, early initiation of treatment will contribute to better outcome.
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Affiliation(s)
- Kyosuke Hattori
- Orthopedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Nobunori Takahashi
- Orthopedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Toshihisa Kojima
- Orthopedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Shiro Imagama
- Orthopedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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Boots JMM, Quax RAM. High-Dose Intravenous Iron with Either Ferric Carboxymaltose or Ferric Derisomaltose: A Benefit-Risk Assessment. Drug Saf 2022; 45:1019-1036. [PMID: 36068430 PMCID: PMC9492608 DOI: 10.1007/s40264-022-01216-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2022] [Indexed: 11/22/2022]
Abstract
The intravenous iron formulations ferric carboxymaltose (FCM) and ferric derisomaltose (FDI) offer the possibility of administering a large amount of iron in one infusion. This results in faster correction of anemia and the formulations being better tolerated than oral iron formulations. This triad of logistic advantages, improved patient convenience, and fast correction of anemia explains the fact that intravenous iron formulations nowadays are frequently prescribed worldwide in the treatment of iron deficiency anemia. However, these formulations may result in hypophosphatemia by inducing a strong increase in active fibroblast growth factor-23 (FGF-23), a hormone that stimulates renal phosphate excretion. This effect is much more pronounced with FCM than with FDI, and therefore the risk of developing hypophosphatemia is remarkably higher with FCM than with FDI. Repeated use of FCM may result in severe osteomalacia, which is characterized by bone pain, Looser zones (pseudofractures), and low-trauma fractures. Intravenous iron preparations are also associated with other adverse effects, of which hypersensitivity reactions are the most important and are usually the result of a non-allergic complement activation on nanoparticles of free labile iron-Complement Activation-Related Pseudo-Allergy (CARPA). The risk on these hypersensitivity reactions can be reduced by choosing a slow infusion rate. Severe hypersensitivity reactions were reported in < 1% of prospective trials and the incidence seems comparable between the two formulations. A practical guideline has been developed based on baseline serum phosphate concentrations and predisposing risk factors, derived from published cases and risk factor analyses from trials, in order to establish the safe use of these formulations.
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Affiliation(s)
- Johannes M M Boots
- Department of Internal Medicine, Maasstad Hospital, Maasstadweg 21, 3079 DZ, Rotterdam, The Netherlands.
| | - Rogier A M Quax
- Department of Internal Medicine, Maasstad Hospital, Maasstadweg 21, 3079 DZ, Rotterdam, The Netherlands
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Kong SH. Denosumab, an effective osteoporosis treatment option for men. Korean J Intern Med 2022; 37:947-948. [PMID: 36068715 PMCID: PMC9449201 DOI: 10.3904/kjim.2022.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sung Hye Kong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
- Correspondence to Sung Hye Kong, M.D. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82 Gumiro 173beon-gil, Bundang-gu, Seongnam 13620, Korea Tel: +82-31-787-8126 Fax: +82-31-787-7029 E-mail:
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Osteoporosis and Fragility Fractures: currently available pharmacological options and future directions. Best Pract Res Clin Rheumatol 2022; 36:101780. [PMID: 36163230 DOI: 10.1016/j.berh.2022.101780] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and microarchitectural deterioration of bone tissue, with a consequent increase in bone fragility and susceptibility to fracture. The average lifetime risk of a 50-year-old woman to suffer a fracture of the spine, hip, proximal humerus, or distal forearm has been estimated at close to 50%. In general, pharmacological treatment is recommended in patients who suffered a fragility fracture because their risk of suffering a subsequent fracture is increased dramatically. Therefore, many guidelines recommend pharmacological treatment in patients without a prevalent fracture if their fracture probability is comparable to or higher than that of a person of the same age with a prevalent fracture. The present review aims to highlight currently available pharmacological treatment options and their antifracture efficacy including safety aspects. Drug classes discussed comprise bisphosphonates, selective estrogen receptor modulators, parathyroid hormone peptides and derivatives, humanized monoclonal antibodies, and estrogens and gestagens and their combinations. Furthermore, a brief glimpse is provided into a potentially promising treatment option that involves mesenchymal stem cells.
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Rhee Y, Chang DG, Ha J, Kim S, Lee Y, Jo E, Koh JM. Real-World Safety and Effectiveness of Denosumab in Patients with Osteoporosis: A Prospective, Observational Study in South Korea. Endocrinol Metab (Seoul) 2022; 37:497-505. [PMID: 35654577 PMCID: PMC9262695 DOI: 10.3803/enm.2022.1427] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGRUOUND The efficacy and safety of denosumab have been established in a phase 3, randomized, placebo-controlled trial in Korean postmenopausal women with osteoporosis. This postmarketing surveillance study was aimed to investigate the safety and effectiveness of denosumab in Korean real-world clinical practice. METHODS Patients with osteoporosis who had received denosumab per the Korean approved indications in the postmarketing setting between September 2014 and September 2019 were enrolled. The primary endpoint was the incidence of adverse events (AEs) and adverse drug reactions (ADRs). The secondary endpoint was the percent change from baseline in bone mineral density (BMD) of the lumbar spine, total hip, and femoral neck. RESULTS Of the 3,221 patients enrolled, 3,185 were included in the safety analysis set; 2,973 (93.3%) were female, and the mean± standard deviation (SD) age was 68.9±9.9 years. The mean±SD study period was 350.0±71.4 days. AEs, fatal AEs, and ADRs occurred in 19.3%, 0.8%, and 1.6%, respectively. The most frequent AEs, occurring in >0.5% of patients, were dizziness (0.7%), arthralgia (0.7%), back pain (0.6%), and myalgia (0.6%). Hypocalcemia occurred in 0.3% of patients. There were no cases of osteonecrosis of the jaw and atypical femoral fracture. Mean±SD percent change from baseline in BMD of the lumbar spine, total hip, and femoral neck was 7.3%±23.6%, 3.6%±31.4%, and 3.2%±10.7%, respectively. CONCLUSION The safety and effectiveness of denosumab in Korean patients with osteoporosis in this study were comparable with those in the Korean randomized controlled trial, with no new safety findings.
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Affiliation(s)
- Yumie Rhee
- Department of Internal Medicine, Severance Hospital, Endocrine Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Dong-Gune Chang
- Department of Orthopedic Surgery, Inje University Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Korea
| | - Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | | | | | - Euna Jo
- Amgen Korea Ltd., Seoul, Korea
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Corresponding author: Jung-Min Koh Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82-2-3010-3247, Fax: +82-2-3010-6962, E-mail:
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Ikegami K, Hashiguchi M, Kizaki H, Yasumuro O, Funakoshi R, Hori S. Development of Risk Prediction Model for Grade 2 or Higher Hypocalcemia in Bone Metastasis Patients Treated with Denosumab plus Cholecalciferol (Vitamin D3)/Ca Supplement. J Clin Pharmacol 2022; 62:1151-1159. [PMID: 35383950 DOI: 10.1002/jcph.2057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/01/2022] [Indexed: 11/09/2022]
Abstract
Denosumab-induced hypocalcemia is sometimes severe, and although a natural vitamin D/Ca combination is used to prevent hypocalcemia, some patients rapidly develop severe hypocalcemia even under supplementation. It is clinically important to predict this risk. This study aimed to develop a risk prediction model for grade 2 or higher hypocalcemia within 28 days after the first denosumab dose under natural vitamin D/Ca supplementation. Using a large database containing multicenter practice data, 2,399 bone metastasis patients who were treated with denosumab between June 2013 and May 2020 were retrospectively analyzed. Background factors in patients who developed grade 2 or higher hypocalcemia within 28 days after the first denosumab dose and those who did not were compared by univariate analysis. Multivariate analysis was conducted to develop a risk prediction model. The model was evaluated for discriminant performance (ROC-AUC: receiver operating characteristic - area under the curve, sensitivity, specificity) and predictive performance (calibration slope). A total of 124 patients in the hypocalcemia group and 1,191 patients in the non-hypocalcemia group were extracted. A risk prediction model consisting of sex, Ca, albumin, alkaline phosphatase, osteoporosis, breast cancer, gastric cancer, proton pump inhibitor combination, and pretreatment with zoledronic acid was developed. The ROC-AUC was 0.87. Sensitivity and specificity were 83% and 81%, respectively, and the calibration slope indicated acceptable agreement between observed and predicted risk. This model appears to be useful to predict the risk of denosumab-induced hypocalcemia and thus should be helpful for risk management of denosumab treatment in patients with bone metastases. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Keisuke Ikegami
- Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Masayuki Hashiguchi
- Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Hayato Kizaki
- Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Osamu Yasumuro
- Department of Pharmacy, Kameda General Hospital, Chiba, Japan
| | | | - Satoko Hori
- Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan
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