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Schini M, Johansson H, Harvey NC, Lorentzon M, Kanis JA, McCloskey EV. An overview of the use of the fracture risk assessment tool (FRAX) in osteoporosis. J Endocrinol Invest 2024; 47:501-511. [PMID: 37874461 PMCID: PMC10904566 DOI: 10.1007/s40618-023-02219-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023]
Abstract
FRAX®, a simple-to-use fracture risk calculator, was first released in 2008 and since then has been used increasingly worldwide. By calculating the 10-year probabilities of a major osteoporotic fracture and hip fracture, it assists clinicians when deciding whether further investigation, for example a bone mineral density measurement (BMD), and/or treatment is needed to prevent future fractures. In this review, we explore the literature around osteoporosis and how FRAX has changed its management. We present the characteristics of this tool and describe the use of thresholds (diagnostic and therapeutic). We also present arguments as to why screening with FRAX should be considered. FRAX has several limitations which are described in this review. This review coincides with the release of a version, FRAXplus, which addresses some of these limitations.
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Affiliation(s)
- M Schini
- Department of Oncology & Metabolism, Metabolic Bone Centre, Northern General Hospital, University of Sheffield, Herries Road, Sheffield, S5 7AU, UK.
| | - H Johansson
- Sahlgrenska Osteoporosis Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - N C Harvey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospitals Southampton NHS Foundation Trust, Southampton, UK
| | - M Lorentzon
- Sahlgrenska Osteoporosis Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - J A Kanis
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
| | - E V McCloskey
- Department of Oncology & Metabolism, Metabolic Bone Centre, Northern General Hospital, University of Sheffield, Herries Road, Sheffield, S5 7AU, UK
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
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Miyauchi A, Hamaya E, Shimauchi J, Yoshinaga Y, Nishi K. Effectiveness of romosozumab in patients with osteoporosis at high fracture risk: a Japanese real-world study. J Bone Miner Metab 2024; 42:77-89. [PMID: 38086988 DOI: 10.1007/s00774-023-01477-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/25/2023] [Indexed: 02/10/2024]
Abstract
INTRODUCTION To describe the real-world use of romosozumab in Japan, we conducted a chart review of > 1000 Japanese patients with osteoporosis (OP) at high risk of fracture, across multiple medical institutions. MATERIALS AND METHODS Treatment-naïve and prior OP-treatment patients who received romosozumab for 12 months followed by ≥ 6 months of sequential OP treatment were included. The primary objective described the baseline demographics and clinical characteristics; secondary objectives evaluated changes in bone mineral density (BMD) and bone turnover markers in all patients and effectiveness of romosozumab in a sub-group of treatment-naïve patients using the fracture risk assessment tool (FRAX®). RESULTS Of the 1027 patients (92.4% female), 45.0% were treatment-naïve. The mean ± SD age of treatment-naïve versus prior OP-treatment patients was 76.8 ± 8.5 and 77.1 ± 8.5 years. The most frequent prior OP treatment was bisphosphonates (45.0%). Romosozumab treatment for 12 months increased BMD at the lumbar spine in all groups; the median percent change from baseline in lumbar spine BMD was higher in the treatment-naïve (13.4%) versus prior OP-treatment group (bisphosphonates [9.2%], teriparatide [11.3%], denosumab [DMAb, 4.5%]). DMAb, bisphosphonates, or teriparatide after romosozumab maintained the BMD gains at all skeletal sites at month 18 in treatment-naïve patients. Most treatment-naïve patients were at high risk of fracture, BMD increased consistently with romosozumab regardless of the baseline fracture risk assessed by FRAX. CONCLUSION This large-scale, multicenter chart review provides clinically relevant insights into the profiles of patients initiating romosozumab, effectiveness of real-world romosozumab use, and sequential therapy in Japanese patients at high risk of fracture.
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Affiliation(s)
| | - Etsuro Hamaya
- Amgen K.K., Midtown Tower 9-7-1 Akasaka, Minato-ku, Tokyo, 107-6239, Japan.
| | | | - Yoko Yoshinaga
- Amgen K.K., Midtown Tower 9-7-1 Akasaka, Minato-ku, Tokyo, 107-6239, Japan
| | - Kiyoshi Nishi
- Amgen K.K., Midtown Tower 9-7-1 Akasaka, Minato-ku, Tokyo, 107-6239, Japan
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Händel MN, Cardoso I, von Bülow C, Rohde JF, Ussing A, Nielsen SM, Christensen R, Body JJ, Brandi ML, Diez-Perez A, Hadji P, Javaid MK, Lems WF, Nogues X, Roux C, Minisola S, Kurth A, Thomas T, Prieto-Alhambra D, Ferrari SL, Langdahl B, Abrahamsen B. Fracture risk reduction and safety by osteoporosis treatment compared with placebo or active comparator in postmenopausal women: systematic review, network meta-analysis, and meta-regression analysis of randomised clinical trials. BMJ 2023; 381:e068033. [PMID: 37130601 PMCID: PMC10152340 DOI: 10.1136/bmj-2021-068033] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
OBJECTIVE To review the comparative effectiveness of osteoporosis treatments, including the bone anabolic agents, abaloparatide and romosozumab, on reducing the risk of fractures in postmenopausal women, and to characterise the effect of antiosteoporosis drug treatments on the risk of fractures according to baseline risk factors. DESIGN Systematic review, network meta-analysis, and meta-regression analysis of randomised clinical trials. DATA SOURCES Medline, Embase, and Cochrane Library to identify randomised controlled trials published between 1 January 1996 and 24 November 2021 that examined the effect of bisphosphonates, denosumab, selective oestrogen receptor modulators, parathyroid hormone receptor agonists, and romosozumab compared with placebo or active comparator. ELIGIBILITY CRITERIA FOR SELECTING STUDIES Randomised controlled trials that included non-Asian postmenopausal women with no restriction on age, when interventions looked at bone quality in a broad perspective. The primary outcome was clinical fractures. Secondary outcomes were vertebral, non-vertebral, hip, and major osteoporotic fractures, all cause mortality, adverse events, and serious cardiovascular adverse events. RESULTS The results were based on 69 trials (>80 000 patients). For clinical fractures, synthesis of the results showed a protective effect of bisphosphonates, parathyroid hormone receptor agonists, and romosozumab compared with placebo. Compared with parathyroid hormone receptor agonists, bisphosphonates were less effective in reducing clinical fractures (odds ratio 1.49, 95% confidence interval 1.12 to 2.00). Compared with parathyroid hormone receptor agonists and romosozumab, denosumab was less effective in reducing clinical fractures (odds ratio 1.85, 1.18 to 2.92 for denosumab v parathyroid hormone receptor agonists and 1.56, 1.02 to 2.39 for denosumab v romosozumab). An effect of all treatments on vertebral fractures compared with placebo was found. In the active treatment comparisons, denosumab, parathyroid hormone receptor agonists, and romosozumab were more effective than oral bisphosphonates in preventing vertebral fractures. The effect of all treatments was unaffected by baseline risk indicators, except for antiresorptive treatments that showed a greater reduction of clinical fractures compared with placebo with increasing mean age (number of studies=17; β=0.98, 95% confidence interval 0.96 to 0.99). No harm outcomes were seen. The certainty in the effect estimates was moderate to low for all individual outcomes, mainly because of limitations in reporting, nominally indicating a serious risk of bias and imprecision. CONCLUSIONS The evidence indicated a benefit of a range of treatments for osteoporosis in postmenopausal women for clinical and vertebral fractures. Bone anabolic treatments were more effective than bisphosphonates in the prevention of clinical and vertebral fractures, irrespective of baseline risk indicators. Hence this analysis provided no clinical evidence for restricting the use of anabolic treatment to patients with a very high risk of fractures. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42019128391.
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Affiliation(s)
- Mina Nicole Händel
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
- Department of Clinical Research, Odense Patient Data Explorative Network, University of Southern Denmark, Odense, Denmark
| | - Isabel Cardoso
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
| | - Cecilie von BĂĽlow
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
- Occupational Science, User Perspectives and Community-Based Interventions, Department of Public Health, University of Southern Denmark, Odense C, Denmark
| | - Jeanett Friis Rohde
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
| | - Anja Ussing
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
| | - Sabrina Mai Nielsen
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
- Research Unit of Rheumatology, Department of Clinical Research, University of Southern Denmark, Odense University Hospital, Odense, Denmark
| | - Robin Christensen
- Parker Institute, Bispebjerg and Frederiksberg Hospital, 2000 Frederiksberg, Denmark
- Research Unit of Rheumatology, Department of Clinical Research, University of Southern Denmark, Odense University Hospital, Odense, Denmark
| | - Jean-Jacques Body
- Department of Medicine, CHU Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Adolfo Diez-Perez
- Department of Internal Medicine, Institut Hospital del Mar of Medical Investigation, Autonomous University of Barcelona and CIBERFES (Frailty and Healthy Aging Research Network), Instituto Carlos III, Barcelona, Spain
| | - Peyman Hadji
- Frankfurt Centre of Bone Health, Frankfurt and Philipps-University of Marburg, Marburg, Germany
| | - Muhammad Kassim Javaid
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | | | - Xavier Nogues
- IMIM (Hospital del Mar Medical Research Institute), Parc de Salut Mar, Pompeu Fabra University, Barcelona, Spain
| | - Christian Roux
- INSERM U 1153, Hospital Paris-Centre, University of Paris, Paris, France
| | - Salvatore Minisola
- Department of Clinical, Internal, Anaesthesiologic, and Cardiovascular Sciences, Rome University, Rome, Italy
| | - Andreas Kurth
- Department of Orthopaedic and Trauma Surgery, Marienhaus Klinikum Mainz, Major Teaching Hospital, University Medicine Mainz, Mainz, Germany
| | - Thierry Thomas
- Université Jean Monnet Saint-Étienne, CHU de Saint-Etienne, Rheumatology Department, INSERM U1059, F-42023, Saint-Etienne, France
| | - Daniel Prieto-Alhambra
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, Netherlands
| | | | - Bente Langdahl
- Departments of Clinical Medicine and of Endocrinology and Internal Medicine, Aarhus University, Aarhus, Denmark
| | - Bo Abrahamsen
- Department of Clinical Research, Odense Patient Data Explorative Network, University of Southern Denmark, Odense, Denmark
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK
- Department of Medicine, Holbæk Hospital, Holbæk, Denmark
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Gates M, Pillay J, Nuspl M, Wingert A, Vandermeer B, Hartling L. Screening for the primary prevention of fragility fractures among adults aged 40 years and older in primary care: systematic reviews of the effects and acceptability of screening and treatment, and the accuracy of risk prediction tools. Syst Rev 2023; 12:51. [PMID: 36945065 PMCID: PMC10029308 DOI: 10.1186/s13643-023-02181-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 02/02/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND To inform recommendations by the Canadian Task Force on Preventive Health Care, we reviewed evidence on the benefits, harms, and acceptability of screening and treatment, and on the accuracy of risk prediction tools for the primary prevention of fragility fractures among adults aged 40 years and older in primary care. METHODS For screening effectiveness, accuracy of risk prediction tools, and treatment benefits, our search methods involved integrating studies published up to 2016 from an existing systematic review. Then, to locate more recent studies and any evidence relating to acceptability and treatment harms, we searched online databases (2016 to April 4, 2022 [screening] or to June 1, 2021 [predictive accuracy]; 1995 to June 1, 2021, for acceptability; 2016 to March 2, 2020, for treatment benefits; 2015 to June 24, 2020, for treatment harms), trial registries and gray literature, and hand-searched reviews, guidelines, and the included studies. Two reviewers selected studies, extracted results, and appraised risk of bias, with disagreements resolved by consensus or a third reviewer. The overview of reviews on treatment harms relied on one reviewer, with verification of data by another reviewer to correct errors and omissions. When appropriate, study results were pooled using random effects meta-analysis; otherwise, findings were described narratively. Evidence certainty was rated according to the GRADE approach. RESULTS We included 4 randomized controlled trials (RCTs) and 1 controlled clinical trial (CCT) for the benefits and harms of screening, 1 RCT for comparative benefits and harms of different screening strategies, 32 validation cohort studies for the calibration of risk prediction tools (26 of these reporting on the Fracture Risk Assessment Tool without [i.e., clinical FRAX], or with the inclusion of bone mineral density (BMD) results [i.e., FRAX + BMD]), 27 RCTs for the benefits of treatment, 10 systematic reviews for the harms of treatment, and 12 studies for the acceptability of screening or initiating treatment. In females aged 65 years and older who are willing to independently complete a mailed fracture risk questionnaire (referred to as "selected population"), 2-step screening using a risk assessment tool with or without measurement of BMD probably (moderate certainty) reduces the risk of hip fractures (3 RCTs and 1 CCT, n = 43,736, absolute risk reduction [ARD] = 6.2 fewer in 1000, 95% CI 9.0-2.8 fewer, number needed to screen [NNS] = 161) and clinical fragility fractures (3 RCTs, n = 42,009, ARD = 5.9 fewer in 1000, 95% CI 10.9-0.8 fewer, NNS = 169). It probably does not reduce all-cause mortality (2 RCTs and 1 CCT, n = 26,511, ARD = no difference in 1000, 95% CI 7.1 fewer to 5.3 more) and may (low certainty) not affect health-related quality of life. Benefits for fracture outcomes were not replicated in an offer-to-screen population where the rate of response to mailed screening questionnaires was low. For females aged 68-80 years, population screening may not reduce the risk of hip fractures (1 RCT, n = 34,229, ARD = 0.3 fewer in 1000, 95% CI 4.2 fewer to 3.9 more) or clinical fragility fractures (1 RCT, n = 34,229, ARD = 1.0 fewer in 1000, 95% CI 8.0 fewer to 6.0 more) over 5 years of follow-up. The evidence for serious adverse events among all patients and for all outcomes among males and younger females (<65 years) is very uncertain. We defined overdiagnosis as the identification of high risk in individuals who, if not screened, would never have known that they were at risk and would never have experienced a fragility fracture. This was not directly reported in any of the trials. Estimates using data available in the trials suggest that among "selected" females offered screening, 12% of those meeting age-specific treatment thresholds based on clinical FRAX 10-year hip fracture risk, and 19% of those meeting thresholds based on clinical FRAX 10-year major osteoporotic fracture risk, may be overdiagnosed as being at high risk of fracture. Of those identified as being at high clinical FRAX 10-year hip fracture risk and who were referred for BMD assessment, 24% may be overdiagnosed. One RCT (n = 9268) provided evidence comparing 1-step to 2-step screening among postmenopausal females, but the evidence from this trial was very uncertain. For the calibration of risk prediction tools, evidence from three Canadian studies (n = 67,611) without serious risk of bias concerns indicates that clinical FRAX-Canada may be well calibrated for the 10-year prediction of hip fractures (observed-to-expected fracture ratio [O:E] = 1.13, 95% CI 0.74-1.72, I2 = 89.2%), and is probably well calibrated for the 10-year prediction of clinical fragility fractures (O:E = 1.10, 95% CI 1.01-1.20, I2 = 50.4%), both leading to some underestimation of the observed risk. Data from these same studies (n = 61,156) showed that FRAX-Canada with BMD may perform poorly to estimate 10-year hip fracture risk (O:E = 1.31, 95% CI 0.91-2.13, I2 = 92.7%), but is probably well calibrated for the 10-year prediction of clinical fragility fractures, with some underestimation of the observed risk (O:E 1.16, 95% CI 1.12-1.20, I2 = 0%). The Canadian Association of Radiologists and Osteoporosis Canada Risk Assessment (CAROC) tool may be well calibrated to predict a category of risk for 10-year clinical fractures (low, moderate, or high risk; 1 study, n = 34,060). The evidence for most other tools was limited, or in the case of FRAX tools calibrated for countries other than Canada, very uncertain due to serious risk of bias concerns and large inconsistency in findings across studies. Postmenopausal females in a primary prevention population defined as <50% prevalence of prior fragility fracture (median 16.9%, range 0 to 48% when reported in the trials) and at risk of fragility fracture, treatment with bisphosphonates as a class (median 2 years, range 1-6 years) probably reduces the risk of clinical fragility fractures (19 RCTs, n = 22,482, ARD = 11.1 fewer in 1000, 95% CI 15.0-6.6 fewer, [number needed to treat for an additional beneficial outcome] NNT = 90), and may reduce the risk of hip fractures (14 RCTs, n = 21,038, ARD = 2.9 fewer in 1000, 95% CI 4.6-0.9 fewer, NNT = 345) and clinical vertebral fractures (11 RCTs, n = 8921, ARD = 10.0 fewer in 1000, 95% CI 14.0-3.9 fewer, NNT = 100); it may not reduce all-cause mortality. There is low certainty evidence of little-to-no reduction in hip fractures with any individual bisphosphonate, but all provided evidence of decreased risk of clinical fragility fractures (moderate certainty for alendronate [NNT=68] and zoledronic acid [NNT=50], low certainty for risedronate [NNT=128]) among postmenopausal females. Evidence for an impact on risk of clinical vertebral fractures is very uncertain for alendronate and risedronate; zoledronic acid may reduce the risk of this outcome (4 RCTs, n = 2367, ARD = 18.7 fewer in 1000, 95% CI 25.6-6.6 fewer, NNT = 54) for postmenopausal females. Denosumab probably reduces the risk of clinical fragility fractures (6 RCTs, n = 9473, ARD = 9.1 fewer in 1000, 95% CI 12.1-5.6 fewer, NNT = 110) and clinical vertebral fractures (4 RCTs, n = 8639, ARD = 16.0 fewer in 1000, 95% CI 18.6-12.1 fewer, NNT=62), but may make little-to-no difference in the risk of hip fractures among postmenopausal females. Denosumab probably makes little-to-no difference in the risk of all-cause mortality or health-related quality of life among postmenopausal females. Evidence in males is limited to two trials (1 zoledronic acid, 1 denosumab); in this population, zoledronic acid may make little-to-no difference in the risk of hip or clinical fragility fractures, and evidence for all-cause mortality is very uncertain. The evidence for treatment with denosumab in males is very uncertain for all fracture outcomes (hip, clinical fragility, clinical vertebral) and all-cause mortality. There is moderate certainty evidence that treatment causes a small number of patients to experience a non-serious adverse event, notably non-serious gastrointestinal events (e.g., abdominal pain, reflux) with alendronate (50 RCTs, n = 22,549, ARD = 16.3 more in 1000, 95% CI 2.4-31.3 more, [number needed to treat for an additional harmful outcome] NNH = 61) but not with risedronate; influenza-like symptoms with zoledronic acid (5 RCTs, n = 10,695, ARD = 142.5 more in 1000, 95% CI 105.5-188.5 more, NNH = 7); and non-serious gastrointestinal adverse events (3 RCTs, n = 8454, ARD = 64.5 more in 1000, 95% CI 26.4-13.3 more, NNH = 16), dermatologic adverse events (3 RCTs, n = 8454, ARD = 15.6 more in 1000, 95% CI 7.6-27.0 more, NNH = 64), and infections (any severity; 4 RCTs, n = 8691, ARD = 1.8 more in 1000, 95% CI 0.1-4.0 more, NNH = 556) with denosumab. For serious adverse events overall and specific to stroke and myocardial infarction, treatment with bisphosphonates probably makes little-to-no difference; evidence for other specific serious harms was less certain or not available. There was low certainty evidence for an increased risk for the rare occurrence of atypical femoral fractures (0.06 to 0.08 more in 1000) and osteonecrosis of the jaw (0.22 more in 1000) with bisphosphonates (most evidence for alendronate). The evidence for these rare outcomes and for rebound fractures with denosumab was very uncertain. Younger (lower risk) females have high willingness to be screened. A minority of postmenopausal females at increased risk for fracture may accept treatment. Further, there is large heterogeneity in the level of risk at which patients may be accepting of initiating treatment, and treatment effects appear to be overestimated. CONCLUSION An offer of 2-step screening with risk assessment and BMD measurement to selected postmenopausal females with low prevalence of prior fracture probably results in a small reduction in the risk of clinical fragility fracture and hip fracture compared to no screening. These findings were most applicable to the use of clinical FRAX for risk assessment and were not replicated in the offer-to-screen population where the rate of response to mailed screening questionnaires was low. Limited direct evidence on harms of screening were available; using study data to provide estimates, there may be a moderate degree of overdiagnosis of high risk for fracture to consider. The evidence for younger females and males is very limited. The benefits of screening and treatment need to be weighed against the potential for harm; patient views on the acceptability of treatment are highly variable. SYSTEMATIC REVIEW REGISTRATION International Prospective Register of Systematic Reviews (PROSPERO): CRD42019123767.
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Affiliation(s)
- Michelle Gates
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada
| | - Jennifer Pillay
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada.
| | - Megan Nuspl
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada
| | - Aireen Wingert
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada
| | - Ben Vandermeer
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada
| | - Lisa Hartling
- Department of Pediatrics, Alberta Research Centre for Health Evidence, University of Alberta, Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, Alberta, T6G 1C9, Canada
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McCloskey EV, Harvey NC, Johansson H, Lorentzon M, Liu E, Vandenput L, Leslie WD, Kanis JA. Fracture risk assessment by the FRAX model. Climacteric 2022; 25:22-28. [PMID: 34319212 DOI: 10.1080/13697137.2021.1945027] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 10/20/2022]
Abstract
The introduction of the FRAX algorithms has facilitated the assessment of fracture risk on the basis of fracture probability. FRAX integrates the influence of several well-validated risk factors for fracture with or without the use of bone mineral density. Since age-specific rates of fracture and death differ across the world, FRAX models are calibrated with regard to the epidemiology of hip fracture (preferably from national sources) and mortality (usually United Nations sources). Models are currently available for 73 nations or territories covering more than 80% of the world population. FRAX has been incorporated into more than 80 guidelines worldwide, although the nature of this application has been heterogeneous. The limitations of FRAX have been extensively reviewed. Arithmetic procedures have been proposed in order to address some of these limitations, which can be applied to conventional FRAX estimates to accommodate knowledge of dose exposure to glucocorticoids, concurrent data on lumbar spine bone mineral density, information on trabecular bone score, hip axis length, falls history, type 2 diabetes, immigration status and recency of prior fracture.
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Affiliation(s)
- E V McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
- Centre for Integrated research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Musculoskeletal Research, University of Sheffield, Sheffield, UK
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, Australia
| | - M Lorentzon
- Centre for Bone and Arthritis Research (CBAR), Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Sweden
| | - E Liu
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, Australia
| | - L Vandenput
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, Australia
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Sweden
| | - W D Leslie
- Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, Australia
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McCloskey EV, Johansson H, Harvey NC, Lorentzon M, Shi Y, Kanis JA. Romosozumab efficacy on fracture outcomes is greater in patients at high baseline fracture risk: a post hoc analysis of the first year of the frame study. Osteoporos Int 2021; 32:1601-1608. [PMID: 33537844 PMCID: PMC8376732 DOI: 10.1007/s00198-020-05815-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/30/2020] [Indexed: 01/01/2023]
Abstract
UNLABELLED This study aimed to determine the interaction between baseline FRAX® fracture probability and romosozumab efficacy. Using an ITT approach, it was determined that the efficacy of romosozumab on clinical fracture, osteoporotic fracture, and major osteoporotic fracture is significantly greater in patients at high baseline fracture risk, when compared with placebo. INTRODUCTION Post hoc analyses of placebo-controlled osteoporosis treatment studies have shown significantly greater reductions of fracture incidence for higher fracture risk patients. This study determined the interaction between baseline FRAX® fracture probability and romosozumab efficacy in the placebo-controlled first year of the phase 3 FRAME study (NCT01575834). METHODS Using an ITT approach, an extension of Poisson regression analysis studied the relationship between treatment, FRAX® 10-year probability of major osteoporotic fracture (MOF, calculated without BMD) and risk of first incident fracture (adjusting for age and follow-up time). Treatment interactions considered outcomes of all clinical fractures, osteoporotic fractures, MOF, clinical vertebral fractures, and morphometric vertebral fractures. Two-sided p value of < 0.1 for the interaction between treatment and FRAX® was considered significant. RESULTS Compared with placebo, romosozumab reduced the incidence of all fracture outcomes in the first year (range: 32% reduction in MOF [p = 0.07] to 80% reduction in clinical vertebral fractures [p = 0.038]). Significant interactions were observed between efficacy and baseline FRAX® probability for composite outcomes of clinical fractures, osteoporotic fractures, and MOF (p = 0.064-0.084), but not vertebral fractures (p > 0.3). For example, romosozumab decreased all clinical fractures by 22% at the 25th centile of FRAX® probability but the reduction was 41% at the 75th centile. Exclusion of vertebral fractures from each composite fracture outcome (i.e. only nonvertebral fractures included) showed even stronger interactions with baseline FRAX® probability (p = 0.036-0.046). CONCLUSIONS Efficacy of romosozumab on clinical fracture, osteoporotic fracture, and MOF is significantly greater in patients at high baseline fracture risk compared with placebo.
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Affiliation(s)
- E V McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK.
- Centre for Integrated Research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK.
- Metabolic Bone Centre, Northern General Hospital, Herries Road, Sheffield, S5 7AU, UK.
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - M Lorentzon
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Y Shi
- Amgen Inc, Thousand Oaks, CA, USA
| | - J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
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7
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Nguyen TV. Personalized fracture risk assessment: where are we at? Expert Rev Endocrinol Metab 2021; 16:191-200. [PMID: 33982611 DOI: 10.1080/17446651.2021.1924672] [Citation(s) in RCA: 3] [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: 04/07/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Introduction: Osteoporotic fracture imposes a significant health care burden globally. Personalized assessment of fracture risk can potentially guide treatment decisions. Over the past decade, a number of risk prediction models, including the Garvan Fracture Risk Calculator (Garvan) and FRAX®, have been developed and implemented in clinical practice. Areas covered: This article reviews recent development and validation results concerning the prognostic performance of the two tools. The main areas of review are the need for personalized fracture risk prediction, purposes of risk prediction, predictive performance in terms of discrimination and calibration, concordance between the Garvan and FRAX tools, genetic profiling for improving predictive performance, and treatment thresholds. In some validation studies, FRAX tended to underestimate fracture by as high as 50%. Studies have shown that the predicted risk from the Garvan tool is highly concordant with clinical decision. Expert opinion: Although there are some discrepancy in fracture risk prediction between Garvan and FRAX, both tools are valid and can aid patients and doctors communicate about risk and make informed decision. The ideal of personalized risk assessment for osteoporosis patients will be realized through the incorporation of genetic profiling into existing fracture risk assessment tools.
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Affiliation(s)
- Tuan V Nguyen
- Healthy Ageing Theme, Garvan Institute of Medical Research Darlinghurst Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney Australia
- School of Biomedical Engineering, University of Technology Sydney Sydney Australia
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Han HS, Cho SH, Park MS, Sung KH, Lee KM. Comparison of Bone Mineral Density and Markers of Bone Turnover in Osteoporotic Women after 6-Month Treatment with Alendronate or Bazedoxifene: A Randomized Controlled Trial. J Bone Metab 2021; 28:131-137. [PMID: 34130365 PMCID: PMC8206607 DOI: 10.11005/jbm.2021.28.2.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/18/2021] [Indexed: 11/11/2022] Open
Abstract
Background In a randomized controlled trial, we compared the bone mineral densities (BMDs) and blood markers of bone turnover during short-term treatment of osteoporotic women with bisphosphonate alendronate or bazedoxifene, a selective estrogen receptor modulator. Methods Ten and eleven patients were randomized to the alendronate and bazedoxifene groups, respectively. BMDs were measured before and after 6 months of treatment. Blood tests were used to measure the levels of osteocalcin (OC), C-terminal telopeptide of type I collagen (CTX), vitamin D3, and parathyroid hormone pretreatment and after 3 and 6 months of treatment. The variables were compared statistically. Results The alendronate group showed decreases in blood levels of both OC and CTX during the study period (P<0.001 and P=0.002, respectively), while the bazedoxifene group had a decrease only in OC levels (P=0.012). After 6 months of treatment, BMDs significantly increased in the alendronate group at multiple bone sites, including the L1–4 lumbar vertebrae, femur trochanter, and total femur. However, there was no significant increase in BMD in the bazedoxifene group. BMDs were not significantly different between the 2 groups. Conclusions Patients treated with alendronate showed more rapid suppression of markers of bone turnover and higher BMD than those treated with bazedoxifene during a short-term regime. Considering the effects and complications of each medication, the relationship between bone turnover rate and bone quality will need to be investigated in future studies.
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Affiliation(s)
- Hee Soo Han
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sung Hee Cho
- Department of Orthopedic Surgery, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Moon Seok Park
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ki Hyuk Sung
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Kyoung Min Lee
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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9
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The Effect of Type of Femoral Component Fixation on Mortality and Morbidity after Hip Hemiarthroplasty: A Systematic Review and Meta-Analysis. HSS J 2020; 16:222-232. [PMID: 33082721 PMCID: PMC7534891 DOI: 10.1007/s11420-020-09769-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 06/04/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hip hemiarthroplasty is a well-established treatment of displaced femoral neck fracture, although debate exists over whether cemented or uncemented fixation is superior. Uncemented prostheses have typically been used in younger, healthier patients and cemented prostheses in older patients with less-stable bone. Also, earlier research has suggested that bone cement has cytotoxic effects and may trigger cardiovascular and respiratory adverse events. QUESTIONS/PURPOSES The aim of this systematic review and meta-analysis was to compare morbidity and mortality rates after cemented and uncemented hemiarthroplasty for the treatment of displaced femoral neck fractures in elderly patients. METHODS Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we searched seven medical databases for randomized clinical trials and observational studies. We compared cemented and uncemented hemiarthroplasty using the Harris Hip Score (HHS), as well as measures of postoperative pain, mortality, and complications. Data were extracted and pooled as risk ratios or standardized mean difference with their corresponding 95% confidence intervals in a meta-analysis model. RESULTS The meta-analysis included 34 studies (12 randomized trials and 22 observational studies), with a total of 42,411 patients. In the pooled estimate, cemented hemiarthroplasty was associated with less risk of postoperative pain than uncemented hemiarthroplasty. There were no significant differences between groups regarding HHS or rates of postoperative mortality, pulmonary embolism, cardiac arrest, myocardial infarction, acute cardiac arrhythmia, or deep venous thrombosis. CONCLUSIONS While we found that cemented hemiarthroplasty results in less postoperative pain than uncemented hemiarthroplasty in older patients with femoral neck fracture, the lack of significant differences in functional hip scores, mortality, and complications was surprising. Further high-level research is needed.
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Wang CY, Fu SH, Yang RS, Chen LK, Shen LJ, Hsiao FY. Timing of anti-osteoporosis medications initiation after a hip fracture affects the risk of subsequent fracture: A nationwide cohort study. Bone 2020; 138:115452. [PMID: 32464276 DOI: 10.1016/j.bone.2020.115452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 05/16/2020] [Accepted: 05/22/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The optimal time after hip fracture to start prophylactic anti-osteoporosis medications (AOMs) remains uncertain, especially in real-world practice. Therefore, we investigated how timing of AOMs initiation affects the risk of subsequent osteoporotic fractures, and what factors influence timing of AOMs prescription. METHOD Patients ≥50 years old with diagnostic codes indicating hospitalization for hip fracture (n = 77,930) were identified from the Taiwan National Health Insurance Research Database; 9986 who were prescribed AOMs ≤1 year after a newly-diagnosed hip fracture were grouped into those who started AOMs from: ≤14 days (very early); 15-84 days (early); 85-252 days (late); and 253-365 days (very late). Associations with fracture-related hospitalizations after an index fracture were analyzed using a multivariate, time-dependent Cox proportional hazards model, and between-group differences compared by log-rank testing. Factors influencing timing of AOMs initiation were elucidated using multivariate logistic regression analyses. RESULTS Compared to AOMs initiation from 15 to 84 days, initiation after 252 days was associated with significantly increased risk of fracture-related hospitalization (HR = 1.93, 95% CI 1.29-2.89). Both sensitivity and pre-specified subgroup analyses yield similar results. Among patients with high adherence to AOMs, the increased risk of subsequent fracture-related hospitalization among very late users was profound (HR = 2.56, 95% CI 1.41-4.64). CONCLUSION Timing of AOMs initiation was significantly associated with age, index year, index hospital length of stay as well as the accreditation level and geographic region of index hospital. After adjusting factors associated with timing of AOMs initiation and patients' adherence, the anti-fracture benefit of AOMs still depends crucially on the timely initiation of AOMs.
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Affiliation(s)
- Chen-Yu Wang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Education and Medical Research, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan; Department of Pharmacy, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Shau-Huai Fu
- Department of Orthopedics, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin County, Taiwan
| | - Rong-Sen Yang
- Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
| | - Liang-Kung Chen
- Aging and Health Research Center, National Yang Ming University, Taipei, Taiwan; Department of Geriatric Medicine, National Yang Ming University School of Medicine, Taipei, Taiwan; Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Li-Jiuan Shen
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan.
| | - Fei-Yuan Hsiao
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan.
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11
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Compston J. Practical guidance for the use of bisphosphonates in osteoporosis. Bone 2020; 136:115330. [PMID: 32222607 DOI: 10.1016/j.bone.2020.115330] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/12/2020] [Accepted: 03/22/2020] [Indexed: 12/23/2022]
Abstract
Bisphosphonates are widely used in the treatment of osteoporosis in postmenopausal women and older men. In clinical trials they have been shown to reduce fractures in women with osteoporosis and there is increasing evidence that they are also effective in women with osteopenia, in whom the majority of fractures occur. In addition to their role as initial therapy in individuals at increased risk of fracture, bisphosphonates are used as sequential therapy after treatment with anabolic drugs. There are no head-to head studies to compare the anti-fracture efficacy of different bisphosphonates, but there is limited evidence that zoledronate treatment results in greater increases in BMD than risedronate or alendronate. This, together with the need for less frequent administration of zoledronate, supports its wider use in clinical practice, particularly if longer dosing intervals than those currently recommended are shown to be effective.
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12
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Osteoporosis treatment considerations based upon fracture history, fracture risk assessment, vertebral fracture assessment, and bone density in Canada. Arch Osteoporos 2020; 15:93. [PMID: 32577922 DOI: 10.1007/s11657-020-00775-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/19/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED Among 39,475 women, age 65 years and older, use of fracture history, major osteoporotic fracture (MOF) probability from FRAX®, vertebral fracture assessment (VFA), and bone mineral density (BMD) T-score stratified women into different levels of risk. The majority of women identified as being at high risk from fracture history, FRAX MOF-BMD > 20%, or vertebral fracture on VFA had a BMD T-score in the osteoporotic range. PURPOSE To inform criteria for pharmacologic treatment in women age 65 years and older, we examined subgroups defined from fracture history, MOF calculated with BMD (MOF-BMD), VFA, and BMD T-score using the population-based Manitoba BMD Program registry. METHODS The study population consisted of women age > 65 years was divided into mutually exclusive subgroups based upon fracture history, MOF-BMD ≥ 20%, vertebral fracture on VFA, and osteoporotic BMD T-score. Healthcare records were assessed for the presence of fracture diagnosis codes occurring after DXA assessment. For each subgroup, we estimated the proportion of individuals with BMD T-score in the osteoporotic range, predicted versus observed 10-year MOF probability, hazard ratio (HR) for MOF, and number needed to treat (NNT) for 3 years to prevent a fracture event. RESULTS The study population consisted of 39,475 women (median age 72 years). The majority of women (76.8%) selected as being at high risk based on fracture history, MOF-BMD > 20%, or vertebral fracture on VFA had a BMD T-score in the osteoporotic range. During a median follow-up of 8 years, 5169 (13.1%) sustained one or more incident MOF. Fracture rates and HRs generally paralleled the FRAX prediction, except in women with a positive VFA where predicted risk based upon clinical risk factors prior to VFA underestimated the observed risk. NNT differed by the risk subgroup, and showed a gradient of decreasing NNT (consistent with greater benefit) in individuals with the highest fracture risk. CONCLUSIONS Fracture history, fracture probability from FRAX, targeted vertebral fracture assessment (VFA), and BMD T-score can stratify older women into different levels of risk and treatment benefit. These results are expected to inform clinical practice guidelines in Canada.
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Leslie WD, Morin SN, Lix LM, Binkley N. Comparison of treatment strategies and thresholds for optimizing fracture prevention in Canada: a simulation analysis. Arch Osteoporos 2019; 15:4. [PMID: 31858278 DOI: 10.1007/s11657-019-0660-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/02/2019] [Indexed: 02/03/2023]
Abstract
UNLABELLED This comparison of osteoporosis treatment strategies and intervention thresholds highlights tradeoffs in terms of number of individuals qualifying for treatment and estimated fractures prevented. PURPOSE The current analysis was performed to inform the following key question as part of the Osteoporosis Canada's Osteoporosis Guidelines Update: "What is the best strategy to identify those at high fracture risk for pharmacotherapy in order to prevent the most fractures, considering both population and patient perspectives?" METHODS The study population consisted of 66,878 women age 50 years and older (mean age 66.0 ± 9.7 years) with documented fracture probability assessment (FRAX) and fracture outcomes. Fractures over the next 5 years were identified through linked administrative healthcare data. We estimated the fraction of the population that would warrant treatment and the number of fractures avoided per 1000 person-years according to multiple strategies and thresholds. Strategies were then rank ordered using 19 metrics. RESULTS During mean 4.4 years, 863 (3.5%) sustained one or more major osteoporotic fractures (MOF), 212 (0.8%) sustained a hip fracture, and 1210 (4.9%) sustained any incident fracture. For woman age 50-64 years, the highest ranked strategy was treatment based upon total hip T score ≤ -2.5, but several other strategies fell within 0.5 overall ranking. For women age 65 years and older, MOF > 20% was the highest ranked strategy with no closely ranked strategies. Pooling both age subgroups gave MOF > 20% as the highest ranked strategy, with several other strategies within 0.5 overall ranking. CONCLUSIONS Choice of treatment strategy and threshold for osteoporosis management strongly influences the number of individuals for whom pharmacologic treatment would be recommended and on estimated fracture rates in the population. This evidence-based approach to comparing these strategies will help to inform guidelines development in Canada and may be on interest elsewhere.
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Affiliation(s)
- William D Leslie
- Department of Medicine, University of Manitoba, C5121-409 Tache Avenue, Winnipeg, Manitoba, R2H 2A6, Canada.
| | | | - Lisa M Lix
- Department of Medicine, University of Manitoba, C5121-409 Tache Avenue, Winnipeg, Manitoba, R2H 2A6, Canada
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Reid IR, Horne AM, Mihov B, Stewart A, Garratt E, Wiessing KR, Bolland MJ, Bastin S, Gamble GD. Anti-fracture efficacy of zoledronate in subgroups of osteopenic postmenopausal women: secondary analysis of a randomized controlled trial. J Intern Med 2019; 286:221-229. [PMID: 30887607 DOI: 10.1111/joim.12901] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND We recently reported that the administration of zoledronate every 18 months to osteopenic older women reduces the incidence of fractures. OBJECTIVE Here, we present a more detailed analysis of that trial to determine whether baseline clinical characteristics impact on the anti-fracture efficacy of this intervention. METHODS This is a prospective, randomized, placebo-controlled, double-blind trial in osteopenic postmenopausal women aged ≥ 65 years, to determine the anti-fracture efficacy of zoledronate. 2000 women were recruited using electoral rolls and randomized to receive 4 infusions of either zoledronate 5 mg or normal saline, at 18-month intervals. Each participant was followed for 6 years. Calcium supplements were not supplied. RESULTS Fragility fractures (either vertebral or nonvertebral) occurred in 190 women in the placebo group (227 fractures) and in 122 women in the zoledronate group (131 fractures), odds ratio (OR) 0.59 (95%CI 0.46, 0.76; P < 0.0001). There were no significant interactions between baseline variables (age, anthropometry, BMI, dietary calcium intake, baseline fracture status, recent falls history, bone mineral density, calculated fracture risk) and the treatment effect. In particular, the reduction in fractures appeared to be independent of baseline fracture risk, and numbers needed to treat (NNT) to prevent one woman fracturing were not significantly different across baseline fracture risk tertiles. CONCLUSIONS The present analyses indicate that the decrease in fracture numbers is broadly consistent across this cohort. The lack of relationship between NNTs and baseline fracture risk calls into question the need for BMD measurement and precise fracture risk assessment before initiating treatment in older postmenopausal women.
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Affiliation(s)
- I R Reid
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.,Auckland District Health Board, Auckland, New Zealand
| | - A M Horne
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - B Mihov
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - A Stewart
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - E Garratt
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - K R Wiessing
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - M J Bolland
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - S Bastin
- Auckland District Health Board, Auckland, New Zealand
| | - G D Gamble
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Fink HA, MacDonald R, Forte ML, Rosebush CE, Ensrud KE, Schousboe JT, Nelson VA, Ullman K, Butler M, Olson CM, Taylor BC, Brasure M, Wilt TJ. Long-Term Drug Therapy and Drug Discontinuations and Holidays for Osteoporosis Fracture Prevention: A Systematic Review. Ann Intern Med 2019; 171:37-50. [PMID: 31009947 DOI: 10.7326/m19-0533] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Optimal long-term osteoporosis drug treatment (ODT) is uncertain. PURPOSE To summarize the effects of long-term ODT and ODT discontinuation and holidays. DATA SOURCES Electronic bibliographic databases (January 1995 to October 2018) and systematic review bibliographies. STUDY SELECTION 48 studies that enrolled men or postmenopausal women aged 50 years or older who were being investigated or treated for fracture prevention, compared long-term ODT (>3 years) versus control or ODT continuation versus discontinuation, reported incident fractures (for trials) or harms (for trials and observational studies), and had low or medium risk of bias (ROB). DATA EXTRACTION Two reviewers independently rated ROB and strength of evidence (SOE). One extracted data; another verified accuracy. DATA SYNTHESIS Thirty-five trials (9 unique studies) and 13 observational studies (11 unique studies) had low or medium ROB. In women with osteoporosis, 4 years of alendronate reduced clinical fractures (hazard ratio [HR], 0.64 [95% CI, 0.50 to 0.82]) and radiographic vertebral fractures (both moderate SOE), whereas 4 years of raloxifene reduced vertebral but not nonvertebral fractures. In women with osteopenia or osteoporosis, 6 years of zoledronic acid reduced clinical fractures (HR, 0.73 [CI, 0.60 to 0.90]), including nonvertebral fractures (high SOE) and clinical vertebral fractures (moderate SOE). Long-term bisphosphonates increased risk for 2 rare harms: atypical femoral fractures (low SOE) and osteonecrosis of the jaw (mostly low SOE). In women with unspecified osteoporosis status, 5 to 7 years of hormone therapy reduced clinical fractures (high SOE), including hip fractures (moderate SOE), but increased serious harms. After 3 to 5 years of treatment, bisphosphonate continuation versus discontinuation reduced radiographic vertebral fractures (zoledronic acid; low SOE) and clinical vertebral fractures (alendronate; moderate SOE) but not nonvertebral fractures (low SOE). LIMITATION No trials studied men, clinical fracture data were sparse, methods for estimating harms were heterogeneous, and no trials compared sequential treatments or different durations of drug holidays. CONCLUSION Long-term alendronate and zoledronic acid therapies reduce fracture risk in women with osteoporosis. Long-term bisphosphonate treatment may increase risk for rare adverse events, and continuing treatment beyond 3 to 5 years may reduce risk for vertebral fractures. Long-term hormone therapy reduces hip fracture risks but has serious harms. PRIMARY FUNDING SOURCE National Institutes of Health and Agency for Healthcare Research and Quality. (PROSPERO: CRD42018087006).
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Affiliation(s)
- Howard A Fink
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
| | - Roderick MacDonald
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
| | - Mary L Forte
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Christina E Rosebush
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Kristine E Ensrud
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
| | - John T Schousboe
- University of Minnesota, Minneapolis, and HealthPartners, Bloomington, Minnesota (J.T.S.)
| | - Victoria A Nelson
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Kristen Ullman
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
| | - Mary Butler
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Carin M Olson
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Brent C Taylor
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
| | - Michelle Brasure
- University of Minnesota, Minneapolis, Minnesota (M.L.F., C.E.R., V.A.N., M.B., C.M.O., M.B.)
| | - Timothy J Wilt
- University of Minnesota and Minneapolis VA Health Care System, Minneapolis, Minnesota (H.A.F., R.M., K.E.E., K.U., B.C.T., T.J.W.)
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Kanis JA, Cooper C, Rizzoli R, Reginster JY. European guidance for the diagnosis and management of osteoporosis in postmenopausal women. Osteoporos Int 2019; 30:3-44. [PMID: 30324412 PMCID: PMC7026233 DOI: 10.1007/s00198-018-4704-5] [Citation(s) in RCA: 898] [Impact Index Per Article: 179.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/12/2018] [Indexed: 12/25/2022]
Abstract
Guidance is provided in a European setting on the assessment and treatment of postmenopausal women at risk from fractures due to osteoporosis. INTRODUCTION The International Osteoporosis Foundation and European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis published guidance for the diagnosis and management of osteoporosis in 2013. This manuscript updates these in a European setting. METHODS Systematic reviews were updated. RESULTS The following areas are reviewed: the role of bone mineral density measurement for the diagnosis of osteoporosis and assessment of fracture risk; general and pharmacological management of osteoporosis; monitoring of treatment; assessment of fracture risk; case-finding strategies; investigation of patients; health economics of treatment. The update includes new information on the evaluation of bone microstructure evaluation in facture risk assessment, the role of FRAX® and Fracture Liaison Services in secondary fracture prevention, long-term effects on fracture risk of dietary intakes, and increased fracture risk on stopping drug treatment. CONCLUSIONS A platform is provided on which specific guidelines can be developed for national use.
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Affiliation(s)
- J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK.
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia.
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - R Rizzoli
- University Hospitals and Faculty of Medicine of Geneva, Geneva, Switzerland
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
- Prince Mutaib Chair for Biomarkers of Osteoporosis, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
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Abstract
This paper reviews the research programme that went into the development of FRAX® and its impact in the 10 years since its release in 2008. INTRODUCTION Osteoporosis is defined on the measurement of bone mineral density though the clinical consequence is fracture. The sensitivity of bone mineral density measurements for fracture prediction is low, leading to the development of FRAX to better calculate the likelihood of fracture and target anti-osteoporosis treatments. METHODS The method used in this paper is literature review. RESULTS FRAX, developed over an 8-year period, was launched in 2008. Since the launch of FRAX, models have been made available for 64 countries and in 31 languages covering more than 80% of the world population. CONCLUSION FRAX provides an advance in fracture risk assessment and a reference technology platform for future improvements in performance characteristics.
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Affiliation(s)
- John A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK.
- Mary McKillop Research Institute, Australian Catholic University, Melbourne, Australia.
| | - Helena Johansson
- Mary McKillop Research Institute, Australian Catholic University, Melbourne, Australia
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Eugene V McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
- Mellanby Centre for Bone Research, Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
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Kanis JA, Cooper C, Rizzoli R, Reginster JY. Review of the guideline of the American College of Physicians on the treatment of osteoporosis. Osteoporos Int 2018; 29:1505-1510. [PMID: 29869039 PMCID: PMC6037298 DOI: 10.1007/s00198-018-4504-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/11/2018] [Indexed: 10/14/2022]
Abstract
This review, endorsed by the International Osteoporosis Foundation and the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases, summarizes several failings of the recent guidelines of the American College of Physicians (ACP) on the treatment of low bone density or osteoporosis to prevent fractures. INTRODUCTION The ACP recently issued guidelines for the treatment of low bone density or osteoporosis to prevent fractures. METHODS Literature review and critical review of the ACP guidelines. RESULTS The guideline is lacking in scope due to the endorsement of treatment based on T-scores rather than fracture risk assessment and in failure to adequately consider anabolic therapies. CONCLUSIONS The ACP guideline appears outdated.
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Affiliation(s)
- J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK.
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia.
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - R Rizzoli
- Service of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
- WHO Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liège, Belgium
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McCloskey EV, Johansson H, Oden A, Harvey NC, Jiang H, Modin S, Fitzpatrick L, Kanis JA. The Effect of Abaloparatide-SC on Fracture Risk Is Independent of Baseline FRAX Fracture Probability: A Post Hoc Analysis of the ACTIVE Study. J Bone Miner Res 2017; 32:1625-1631. [PMID: 28474780 PMCID: PMC5553106 DOI: 10.1002/jbmr.3163] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 04/15/2017] [Accepted: 05/01/2017] [Indexed: 01/07/2023]
Abstract
Daily subcutaneous (SC) injections of the investigational drug abaloparatide-SC (80 mcg) for 18 months significantly decrease the risk of vertebral and nonvertebral fracture compared with placebo in postmenopausal women. We examined the efficacy of abaloparatide-SC as a function of baseline fracture risk, assessed using the FRAX tool. Baseline clinical risk factors (age, body mass index [BMI], prior fracture, glucocorticoid use, rheumatoid arthritis, and smoking) were entered into country-specific FRAX models to calculate the 10-year probability of major osteoporotic fractures, with or without femoral neck bone mineral density (BMD). The interaction between probability of a major osteoporotic fracture and treatment efficacy was examined by a Poisson regression. A total of 821 women randomized to placebo and 824 women to abaloparatide-SC, mean age 69 years in both groups, were followed for up to 2 years. At baseline, the 10-year probability of major osteoporotic fractures (with BMD) ranged from 2.3% to 57.5% (mean 13.2%). Treatment with abaloparatide-SC was associated with a 69% (95% confidence interval [CI] 38-85%) decrease in major osteoporotic fracture (MOF) and a 43% (95% CI 9-64%) decrease in any clinical fracture compared with placebo. For all outcomes, hazard ratios tended to decrease (ie, greater efficacy) with increasing fracture probability. Whereas the interaction approached significance for the outcome of any fracture (p = 0.11), there was no statistically significant interaction for any of the fracture outcomes. Similar results were noted when FRAX probability was computed without BMD. Efficacy of abaloparatide-SC to decrease the risk of major osteoporotic fracture or any clinical fracture in postmenopausal women with low BMD and/or prior fracture appears independent of baseline fracture probability. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- EV McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Centre for Integrated research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Institute for Health and Aging, Catholic University of Australia, Melbourne, Australia
| | - A Oden
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
| | - NC Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - H. Jiang
- Radius Health, Inc. 950 Winter St., Waltham, MA
| | - S. Modin
- Radius Health, Inc. 950 Winter St., Waltham, MA
| | | | - J. A. Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Institute for Health and Aging, Catholic University of Australia, Melbourne, Australia
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Abstract
Fracture caused by osteoporosis remains a major public health burden on contemporary populations because fracture is associated with a substantial increase in the risk of mortality. Early identification of high-risk individuals for prevention is a priority in osteoporosis research. Over the past decade, few risk prediction models, including the Garvan Fracture Risk Calculator (Garvan) and FRAX®, have been developed to provide absolute (individualized) risk of fracture. Recent validation studies suggested that the area under the receiver operating characteristic curve in fracture discrimination ranged from 0.61 to 0.83 for FRAX® and from 0.63 to 0.88 for Garvan, with hip fractures having a better discrimination than fragility fractures as a group. Although the prognostic performance of Garvan and FRAX® for fracture prediction is not perfect and there is room for further improvement, these predictive models can aid patients and doctors communicate about fracture risk in the medium term and to make rational decisions. However, the application of these predictive models in making decisions for an individual should take into account the individual's perception of the importance of fracture relative to other diseases.
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Affiliation(s)
- Tuan V Nguyen
- Bone Biology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia; St Vincent's Clinical School, UNSW Medicine, UNSW, Australia; Centre for Health Technology, University of Technology, Sydney, Australia.
| | - John A Eisman
- Bone Biology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia; St Vincent's Clinical School, UNSW Medicine, UNSW, Australia; School of Medicine Sydney, University of Notre Dame Australia, Fremantle, Australia
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LaFleur J, Rillamas-Sun E, ColĂłn-Emeric CS, Knippenberg KA, Ensrud KE, Gray SL, Cauley JA, LaCroix AZ. Fracture Rates and Bone Density Among Postmenopausal Veteran and Non-Veteran Women From the Women's Health Initiative. THE GERONTOLOGIST 2017; 56 Suppl 1:S78-90. [PMID: 26768394 DOI: 10.1093/geront/gnv677] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
PURPOSE OF THE STUDY Postmenopausal osteoporosis can impact quality-of-life even prefracture. To determine whether osteoporosis should be a greater concern in women Veterans versus non-Veterans, we compared fracture rates and bone mineral density (BMD) for Veterans and non-Veterans using Women's Health Initiative data. DESIGN AND METHODS In this cohort study, participants were women aged 50-79 years. Outcomes were hip, central body, and limb fractures occurring during up to 19 years of follow-up and hip, spine, and whole body BMD collected three times over a 6-year period in a participant subsample. Covariates comprised risk factors for fracture, including fall history and other components of the World Health Organization Fracture Risk Assessment Tool (FRAX). Cox Proportional Hazards models were used to examine fracture rates for Veterans compared with non-Veterans. RESULTS Of 161,808 women, 145,521 self-identified as Veteran (n = 3,719) or non-Veteran (n = 141,802). Baseline FRAX scores showed that Veterans had higher 10-year probabilities for any major fracture (13.3 vs 10.2; p < .01) and hip fracture (4.1 vs 2.2; p < .01) compared with non-Veterans. The age-adjusted rate of hip fracture per 1,000 person-years for Veterans was 3.3 versus 2.4 for non-Veterans (p < .01). After adjustment, the hazards ratio for hip fracture was 1.24 (95% confidence interval 1.03-1.49) for Veterans versus non-Veterans. Hazards ratios at other anatomic sites did not differ by Veteran status. Mean BMD at baseline and at Years 3 and 6 also did not differ by Veteran status at any site. IMPLICATIONS Women Veterans had an increased hip fracture rate not explained by differences in well-recognized fracture risk factors.
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Affiliation(s)
- Joanne LaFleur
- VA Salt Lake City Healthcare System, Utah. Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City.
| | - Eileen Rillamas-Sun
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Cathleen S ColĂłn-Emeric
- Durham Center for Health Services Research and Durham Geriatric Research, Education and Clinical Center, Department of Veterans Affairs, North Carolina. Department of Medicine, Duke University, Durham, North Carolina
| | - Kristin A Knippenberg
- VA Salt Lake City Healthcare System, Utah. Department of Pharmacotherapy, University of Utah College of Pharmacy, Salt Lake City
| | - Kristine E Ensrud
- Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, One Veterans Drive, Minnesota. Department of Medicine, Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
| | - Shelly L Gray
- School of Pharmacy, University of Washington, Seattle
| | - Jane A Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania
| | - Andrea Z LaCroix
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla
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Al-Bogami MM, Alkhorayef MA, Bystrom J, Akanle OA, Al-Adhoubi NK, Jawad AS, Mageed RA. Favorable therapeutic response of osteoporosis patients to treatment with intravenous zoledronate compared with oral alendronate. Saudi Med J 2016; 36:1305-11. [PMID: 26593163 PMCID: PMC4673367 DOI: 10.15537/smj.2015.11.12731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Objectives: To evaluate the efficacy of orally-administered alendronate compared with intravenously-administered zoledronate. Methods: This prospective study was carried out at Barts Health HNS Trust between April 2010 and March 2012. This study compares changes in bone mineral density (BMD) in 234 patients treated with 2 bisphosphonates: alendronate taken orally, and zoledronate administered intravenously. One hundred and eighteen patients received alendronate at 70 mg/week, while 116 patients received zoledronate once annually. Dual energy x-ray absorptiometry was used to measure BMD of the left hip and anterior-posterior spine (lumbar L1-L4) skeletal sites at baseline, and at one-, and 2-years post-treatment. Results: This study provides evidence that lumbar spine BMD increased by 3.6% in patients receiving alendronate, and 5.7% in patients receiving zoledronate after 2 years compared with baseline values (p=0.0001 for both). Total hip BMD decreased in patients treated with alendronate by 0.4% but increased in patients receiving zoledronate by 0.8% (p=0.0001). Conclusion: This study provides evidence that zoledronate is more effective than alendronate in treating patients with osteoporosis and with no gastrointestinal (GI) serious side effects. Furthermore, zoledronate appears to have the added advantage of a better safety profile in patients suffering from GI intolerance of oral bisphosphonates.
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Affiliation(s)
- Mohammed M Al-Bogami
- Bone and Joint Research Unit, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom. E-mail.
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Shanbhogue VV, Mitchell DM, Rosen CJ, Bouxsein ML. Type 2 diabetes and the skeleton: new insights into sweet bones. Lancet Diabetes Endocrinol 2016; 4:159-73. [PMID: 26365605 DOI: 10.1016/s2213-8587(15)00283-1] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/16/2015] [Accepted: 07/20/2015] [Indexed: 12/15/2022]
Abstract
Substantial evidence shows that skeletal fragility should be considered among the complications associated with type 2 diabetes. Individuals with type 2 diabetes have increased fracture risk, despite normal bone mineral density (BMD) and high BMI-factors that are generally protective against fractures. The mechanisms underlying skeletal fragility in diabetes are not completely understood, but are multifactorial and likely include effects of obesity, hyperglycaemia, oxidative stress, and accumulation of advanced glycation end products, leading to altered bone metabolism, structure, and strength. Clinicians should be aware that BMD measurements underestimate fracture risk in people with type 2 diabetes, and that new treatments for diabetes, with neutral or positive effects on skeletal health, might play a part in the management of diabetes in those at high risk of fracture. Data for the optimum management of osteoporosis in patients with type 2 diabetes are scarce, but in the absence of evidence to the contrary, physicians should follow guidelines established for postmenopausal osteoporosis.
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Affiliation(s)
- Vikram V Shanbhogue
- Department of Endocrinology, Odense University Hospital, and Institute of Clinical Research, University of Southern Denmark, Odense Denmark
| | - Deborah M Mitchell
- Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Mary L Bouxsein
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
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Uzoigwe CE. The real enemy is fragility fracture, not osteoporosis. Osteoporos Int 2016; 27:413-5. [PMID: 26564226 DOI: 10.1007/s00198-015-3405-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/04/2015] [Indexed: 01/09/2023]
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LaFleur J, DuVall SL, Willson T, Ginter T, Patterson O, Cheng Y, Knippenberg K, Haroldsen C, Adler RA, Curtis JR, Agodoa I, Nelson RE. Analysis of osteoporosis treatment patterns with bisphosphonates and outcomes among postmenopausal veterans. Bone 2015; 78:174-85. [PMID: 25896952 DOI: 10.1016/j.bone.2015.04.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 03/24/2015] [Accepted: 04/14/2015] [Indexed: 01/22/2023]
Abstract
PURPOSE Adherence and persistence with bisphosphonates are frequently poor, and stopping, restarting, or switching bisphosphonates is common. We evaluated bisphosphonate change behaviors (switching, discontinuing, or reinitiating) over time, as well as fractures and costs, among a large, national cohort of postmenopausal veterans. METHODS Female veterans aged 50+ treated with bisphosphonates during 2003-2011 were identified in Veterans Health Administration (VHA) datasets. Bisphosphonate change behaviors were characterized using pharmacy refill records. Patients' baseline disease severity was characterized based on age, T-score, and prior fracture. Cox Proportional Hazard analysis was used to evaluate characteristics associated with discontinuation and the relationship between change behaviors and fracture outcomes. Generalized estimating equations were used to evaluate the relationship between change behaviors and cost outcomes. RESULTS A total of 35,650 patients met eligibility criteria. Over 6800 patients (19.1%) were non-switchers. The remaining patients were in the change cohort; at least half displayed more than one change behavior over time. A strong, significant predictor of discontinuation was ≥5 healthcare visits in the prior year (11-23% more likely to discontinue), and discontinuation risk decreased with increasing age. No change behaviors were associated with increased fracture risk. Total costs were significantly higher in patients with change behaviors (4.7-19.7% higher). Change-behavior patients mostly had significantly lower osteoporosis-related costs than non-switchers (22%-118% lower). CONCLUSIONS Most bisphosphonate patients discontinue treatment at some point, which did not significantly increase the risk of fracture in this majority non-high risk population. Bisphosphonate change behaviors were associated with significantly lower osteoporosis costs, but significantly higher total costs.
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Affiliation(s)
- J LaFleur
- Pharmacotherapy Outcomes Research Center, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA; VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA.
| | - S L DuVall
- Pharmacotherapy Outcomes Research Center, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA; VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA
| | - T Willson
- Pharmacotherapy Outcomes Research Center, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA; VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA
| | - T Ginter
- VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA
| | - O Patterson
- VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA
| | - Y Cheng
- Pharmacotherapy Outcomes Research Center, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA; VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA
| | - K Knippenberg
- Pharmacotherapy Outcomes Research Center, University of Utah, 30 South 2000 East, Salt Lake City, UT 84112, USA
| | - C Haroldsen
- VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA; Department of Internal Medicine, University of Utah, 30 North 1900 East, Salt Lake City, UT 84132, USA
| | - R A Adler
- Hunter Holmes McGuire Veterans Affairs Medical Center, 1201 Broad Rock Boulevard, Richmond, VA 23224, USA
| | - J R Curtis
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, 1825 University Boulevard, Birmingham, AL 35294-2182, USA
| | - I Agodoa
- Amgen, Inc., 1 Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - R E Nelson
- VA Salt Lake City Heath Care System, 500 Foothill Drive, Salt Lake City, UT 84148, USA; Department of Internal Medicine, University of Utah, 30 North 1900 East, Salt Lake City, UT 84132, USA
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Kanis JA, McCloskey E, Branco J, Brandi ML, Dennison E, Devogelaer JP, Ferrari S, Kaufman JM, Papapoulos S, Reginster JY, Rizzoli R. Goal-directed treatment of osteoporosis in Europe. Osteoporos Int 2014; 25:2533-43. [PMID: 25199574 DOI: 10.1007/s00198-014-2787-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 06/19/2014] [Indexed: 12/21/2022]
Abstract
UNLABELLED Despite the proven predictive ability of bone mineral density, Fracture Risk Assessment Tool (FRAX®), bone turnover markers, and fracture for osteoporotic fracture, their use as targets for treatment of osteoporosis is limited. INTRODUCTION Treat-to-target is a strategy applied in several fields of medicine and has recently become an area of interest in the management of osteoporosis. Its role in this setting remains controversial. This article was prepared following a European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO) working group meeting convened under the auspices of the International Osteoporosis Foundation (IOF) to discuss the feasibility of applying such a strategy in osteoporosis in Europe. METHODS Potential targets range from the absence of an incident fracture to fixed levels of bone mineral density (BMD), a desired FRAX® score, a specified level of bone turnover markers or indeed changes in any one or a combination of these parameters. RESULTS Despite the proven predictive ability of all of these variables for fracture (particularly BMD and FRAX), their use as targets remains limited due to low sensitivity, the influence of confounders and current lack of evidence that targets can be consistently reached. CONCLUSION ESCEO considers that it is not currently feasible to apply a treat-to-target strategy in osteoporosis, though it did identify a need to continue to improve the targeting of treatment to those at higher risk (target-to-treat strategy) and a number of issues for the research agenda. These include international consensus on intervention thresholds and definition of treatment failure, further exploration of the relationship between fracture and BMD, and FRAX and treatment efficacy and investigation of the potential of short-term targets to improve adherence.
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Affiliation(s)
- J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK,
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Silverman SL, Komm BS, Mirkin S. Use of FRAX®-based fracture risk assessments to identify patients who will benefit from osteoporosis therapy. Maturitas 2014; 79:241-7. [DOI: 10.1016/j.maturitas.2014.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 07/08/2014] [Indexed: 11/25/2022]
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Blain H, Rolland Y, Beauchet O, Annweiler C, Benhamou CL, Benetos A, Berrut G, Audran M, Bendavid S, Bousson V, Briot K, Brazier M, Breuil V, Chapuis L, Chapurlat R, Cohen-Solal M, Cortet B, Dargent P, Fardellone P, Feron JM, Gauvain JB, Guggenbuhl P, Hanon O, Laroche M, Kolta S, Lespessailles É, Letombe B, Mallet É, Marcelli C, Orcel P, Puisieux F, Seret P, Souberbielle JC, Sutter B, Trémollières F, Weryha G, Roux C, Thomas T. Usefulness of bone density measurement in fallers. Joint Bone Spine 2014; 81:403-8. [DOI: 10.1016/j.jbspin.2014.01.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
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Ensrud KE, Taylor BC, Peters KW, Gourlay ML, Donaldson MG, Leslie WD, Blackwell TL, Fink HA, Orwoll ES, Schousboe J. Implications of expanding indications for drug treatment to prevent fracture in older men in United States: cross sectional and longitudinal analysis of prospective cohort study. BMJ 2014; 349:g4120. [PMID: 24994809 PMCID: PMC4080830 DOI: 10.1136/bmj.g4120] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/05/2014] [Indexed: 01/07/2023]
Abstract
OBJECTIVES To quantify incremental effects of applying different criteria to identify men who are candidates for drug treatment to prevent fracture and to examine the extent to which fracture probabilities vary across distinct categories of men defined by these criteria. DESIGN Cross sectional and longitudinal analysis of a prospective cohort study. SETTING Multicenter Osteoporotic Fractures in Men (MrOS) study in the United States. PARTICIPANTS 5880 untreated community dwelling men aged 65 years or over classified into four distinct groups: osteoporosis by World Health Organization criteria alone; osteoporosis by National Osteoporosis Foundation (NOF) but not WHO criteria; no osteoporosis but at high fracture risk (at or above NOF derived FRAX intervention thresholds recommended for US); and no osteoporosis and at low fracture risk (below NOF derived FRAX intervention thresholds recommended for US). MAIN OUTCOME MEASURES Proportion of men identified for drug treatment; predicted 10 year probabilities of hip and major osteoporotic fracture calculated using FRAX algorithm with femoral neck bone mineral density; observed 10 year probabilities for confirmed incident hip and major osteoporotic (hip, clinical vertebral, wrist, or humerus) fracture events calculated using cumulative incidence estimation, accounting for competing risk of mortality. RESULTS 130 (2.2%) men were identified as having osteoporosis by using the WHO definition, and an additional 422 were identified by applying the NOF definition (total osteoporosis prevalence 9.4%). Application of NOF derived FRAX intervention thresholds led to 936 (15.9%) additional men without osteoporosis being identified as at high fracture risk, raising the total prevalence of men potentially eligible for drug treatment to 25.3%. Observed 10 year hip fracture probabilities were 20.6% for men with osteoporosis by WHO criteria alone, 6.8% for men with osteoporosis by NOF (but not WHO) criteria, 6.4% for men without osteoporosis but classified as at high fracture risk, and 1.5% for men without osteoporosis and classified as at low fracture risk. A similar pattern was noted in observed fracture probabilities for major osteoporotic fracture. Among men with osteoporosis by WHO criteria, observed fracture probabilities were greater than FRAX predicted probabilities (20.6% v 9.5% for hip fracture and 30.0% v 17.4% for major osteoporotic fracture). CONCLUSIONS AND RELEVANCE Choice of definition of osteoporosis and use of NOF derived FRAX intervention thresholds have major effects on the proportion of older men identified as warranting drug treatment to prevent fracture. Among men identified with osteoporosis by WHO criteria, who comprised 2% of the study population, actual observed fracture probabilities during 10 years of follow-up were highest and exceeded FRAX predicted fracture probabilities. On the basis of findings from randomized trials in women, these men are most likely to benefit from treatment. Expanding indications for treatment beyond this small group has uncertain value owing to lower observed fracture probabilities and uncertain benefits of treatment among men not selected on the basis of WHO criteria.
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Affiliation(s)
- Kristine E Ensrud
- Department of Medicine and Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, MN, USA
| | - Brent C Taylor
- Department of Medicine and Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, MN, USA
| | - Katherine W Peters
- California Pacific Medical Center Research Institute, San Francisco, CA, USA
| | - Margaret L Gourlay
- Department of Family Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Meghan G Donaldson
- Centre for Clinical Epidemiology and Evaluation, University of British Columbia, Vancouver, BC, Canada
| | - William D Leslie
- Department of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Terri L Blackwell
- California Pacific Medical Center Research Institute, San Francisco, CA, USA
| | - Howard A Fink
- Department of Medicine and Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, MN, USA
| | - Eric S Orwoll
- Bone and Mineral Unit, Oregon Health and Science University, Portland, OR, USA
| | - John Schousboe
- Park Nicollet Clinic, St Louis Park, MN, USA Division of Health Policy and Management, University of Minnesota, Minneapolis, MN, USA
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Siris ES, Adler R, Bilezikian J, Bolognese M, Dawson-Hughes B, Favus MJ, Harris ST, Jan de Beur SM, Khosla S, Lane NE, Lindsay R, Nana AD, Orwoll ES, Saag K, Silverman S, Watts NB. The clinical diagnosis of osteoporosis: a position statement from the National Bone Health Alliance Working Group. Osteoporos Int 2014; 25:1439-43. [PMID: 24577348 PMCID: PMC3988515 DOI: 10.1007/s00198-014-2655-z] [Citation(s) in RCA: 388] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 02/11/2014] [Indexed: 12/13/2022]
Abstract
UNLABELLED Osteoporosis causes an elevated fracture risk. We propose the continued use of T-scores as one means for diagnosis but recommend that, alternatively, hip fracture; osteopenia-associated vertebral, proximal humerus, pelvis, or some wrist fractures; or FRAX scores with ≥3% (hip) or 20% (major) 10-year fracture risk also confer an osteoporosis diagnosis. INTRODUCTION Osteoporosis is a common disorder of reduced bone strength that predisposes to an increased risk for fractures in older individuals. In the USA, the standard criterion for the diagnosis of osteoporosis in postmenopausal women and older men is a T-score of  ≤ -2.5 at the lumbar spine, femur neck, or total hip by bone mineral density testing. METHODS Under the direction of the National Bone Health Alliance, 17 clinicians and clinical scientists were appointed to a working group charged to determine the appropriate expansion of the criteria by which osteoporosis can be diagnosed. RESULTS The group recommends that postmenopausal women and men aged 50 years should be diagnosed with osteoporosis if they have a demonstrable elevated risk for future fractures. This includes having a T-score of less than or equal to -2.5 at the spine or hip as one method for diagnosis but also permits a diagnosis for individuals in this population who have experienced a hip fracture with or without bone mineral density (BMD) testing and for those who have osteopenia by BMD who sustain a vertebral, proximal humeral, pelvic, or, in some cases, distal forearm fracture. Finally, the term osteoporosis should be used to diagnose individuals with an elevated fracture risk based on the World Health Organization Fracture Risk Algorithm, FRAX. CONCLUSIONS As new ICD-10 codes become available, it is our hope that this new understanding of what osteoporosis represents will allow for an appropriate diagnosis when older individuals are recognized as being at an elevated risk for fracture.
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Affiliation(s)
- E S Siris
- Division of Endocrinology, Department of Medicine, Columbia University Medical Center, New York, NY, USA,
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Lundin H, Sääf M, Strender LE, Nyren S, Johansson SE, Salminen H. One-leg standing time and hip-fracture prediction. Osteoporos Int 2014; 25:1305-11. [PMID: 24562837 DOI: 10.1007/s00198-013-2593-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 11/26/2013] [Indexed: 01/04/2023]
Abstract
UNLABELLED A hip fracture results in a lower quality of life and a cost of ÂŁ30,000. In this study, one-leg standing time (OLST) had a negative linear relationship to the risk of a hip fracture. OLST could be a useful tool to assess the need for fracture-preventive interventions. INTRODUCTION A hip fracture immobilizes, restricts autonomy, shortens life expectancy, and results in a cost of ÂŁ30,000 in the UK health care system. However, effective preventive treatments can be offered to high-risk individuals. Impaired postural balance is an important risk factor for hip fractures, and the aim of this study was to evaluate whether OLST can predict hip fractures in elderly women. FRAX is the most established fracture risk assessment tool worldwide and a secondary aim was to relate the predictive ability of OLST to that of FRAX in this population. METHODS Three hundred fifty-one women aged between 69 and 79 years were timed standing on one leg up to 30 s with eyes open and assessed with FRAX. Fracture data was obtained from registers. RESULTS The main outcome, a hip fracture, occurred in 40 of the 351 participants (11.4%). The age-adjusted risk of a hip fracture was 5% lower with 1 s longer OLST (Hazard ratio 0.95, 95% CI 0.927-0.978). The relation between OLST and hip fracture risk was linear. Harrell's c was 0.60 for FRAX and 0.68 for OLST adjusted for age. CONCLUSION With 1 s longer OLST, the risk of a hip fracture decreased significantly by 5%. This risk reduction was not explained by differences in the classic fracture risk factors included in FRAX. OLST had a predictive ability similar to FRAX. OLST is an easily performed balance test which may prove to be valuable in the assessment of hip fracture risk.
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Affiliation(s)
- H Lundin
- Centre for Family Medicine (CeFAM), Karolinska Institutet, Alfred Nobels allé 12, 141 83 Huddinge, Stockholm, Sweden,
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Chen B, Li Y, Yang X, Xie D. Comparable effects of alendronate and strontium ranelate on femur in ovariectomized rats. Calcif Tissue Int 2013; 93:481-6. [PMID: 23897224 DOI: 10.1007/s00223-013-9765-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 06/24/2013] [Indexed: 01/16/2023]
Abstract
This study compared the effects of alendronate (ALN) and strontium ranelate (SR) on bone mineral density (BMD), bone histomorphometry, and biomechanics in ovariectomized (OVX) rats. We randomly assigned 48 3-month-old female Sprague-Dawley rats to four groups: sham, OVX, ALN, and SR. Rats in the OVX, ALN, and SR groups received bilateral OVX. Rats in the ALN and SR groups were orally administrated ALN (7 mg/kg/week) and SR (500 mg/kg/day). Rats in the sham and OVX groups were treated with saline. All treatments continued for 12 weeks. Femoral BMD examination, distal femoral bone histomorphometry analysis, and biomechanical tests at the femoral diaphysis and metaphysis were performed to evaluate the effects of treatments in OVX rats. Results showed that both ALN and SR significantly increased femoral BMD (total femur, diaphyseal BMD, and distal metaphyseal BMD), distal femoral bone histomorphometric parameters (BV/TV, Tb.N, and Tb.Th), and femoral biomechanical parameters (maximum load, failure load, stiffness) compared with the OVX group (P < 0.05). No differences were found between ALN and SR in increasing femoral BMD, distal femoral bone histomorphometric parameters (BV/TV, Tb.N, and Tb.Th), and femoral diaphysis biomechanical parameters (maximum load, failure load, stiffness) (P > 0.05). The SR group was inferior to the ALN group in femoral metaphysis biomechanical parameters (P < 0.05). In conclusion, ALN (7 mg/kg/week) and SR (500 mg/kg/day) have similar effects by increasing BMD, distal femoral bone histomorphometric parameters, and femoral metaphysis biomechanical properties. Although ALN has greater effects than SR on distal femoral metaphysis biomechanical properties, in general, ALN and SR have comparable effects on the femur in OVX rats.
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Affiliation(s)
- BaiLing Chen
- Department of Spine Surgery, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan 2nd Road, Guangzhou, 510080, China,
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Kaufman JM, Palacios S, Silverman S, Sutradhar S, Chines A. An evaluation of the Fracture Risk Assessment Tool (FRAX®) as an indicator of treatment efficacy: the effects of bazedoxifene and raloxifene on vertebral, nonvertebral, and all clinical fractures as a function of baseline fracture risk assessed by FRAX®. Osteoporos Int 2013; 24:2561-9. [PMID: 23595562 DOI: 10.1007/s00198-013-2341-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 03/06/2013] [Indexed: 12/25/2022]
Abstract
SUMMARY The relationship between baseline Fracture Risk Assessment Tool (FRAX®) and treatment efficacy was evaluated using data from a pivotal phase 3 study. Relative risk of vertebral, nonvertebral, and all clinical fractures decreased with increasing probability of fracture for bazedoxifene (BZA) versus placebo but remained generally constant for raloxifene (RLX). INTRODUCTION To determine whether the FRAX® predicts osteoporosis treatment efficacy, we evaluated reductions in fracture incidence associated with BZA and RLX according to baseline fracture risk determined by FRAX® using data from a phase 3 osteoporosis treatment study. METHODS Hazard ratios (HRs) for effects of BZA and RLX versus placebo on incidence of vertebral, nonvertebral, and all clinical fractures were calculated using a Cox regression model. Cox regression analyses were performed in subgroups at or above 10-year fracture probability thresholds determined by FRAX®. RESULTS HRs for the risk of vertebral, nonvertebral, and all clinical fractures versus placebo decreased with increasing 10-year fracture probability for BZA, while those for RLX remained stable. In all 10-year fracture probability subgroups, all BZA doses significantly reduced vertebral fracture risk versus placebo (HR = 0.22-0.66). BZA at 20, 40, and 20/40 mg significantly reduced risk of nonvertebral fractures (HR = 0.45, 0.44, and 0.45, respectively) and all clinical fractures (HR = 0.38, 0.41, and 0.40, respectively) for ≥20.0 % fracture probability. Vertebral fracture risk reductions for RLX 60 mg versus placebo were significant in subgroups at lower fracture probabilities (≥2.5- ≥ 10.0 %), but not higher (≥12.5 %), and in no subgroups for nonvertebral or all clinical fractures. CONCLUSION The antifracture efficacy of BZA increased with increasing baseline FRAX® score, but there was no clear relationship between RLX and baseline FRAX®. These findings provide independent confirmation of current literature, suggesting that the relationship between FRAX® and treatment efficacy varies for different agents.
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Affiliation(s)
- J-M Kaufman
- Department of Endocrinology and Unit for Osteoporosis and Metabolic Bone Diseases, Ghent University Hospital, Ghent, Belgium,
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Roux S, Beaulieu M, Beaulieu MC, Cabana F, Boire G. Priming primary care physicians to treat osteoporosis after a fragility fracture: an integrated multidisciplinary approach. J Rheumatol 2013; 40:703-11. [PMID: 23504379 DOI: 10.3899/jrheum.120908] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate 2 incremental levels of intervention designed to increase initiation of osteoporosis treatment by primary care physicians (PCP) following fragility fractures (FF). METHODS Women and men over age 50 years were screened for incident FF in fracture clinics, and eligible outpatients were randomly assigned to standard care (SC) or to either minimal (MIN) or intensive (INT) interventions. The MIN and INT interventions were intended to educate and motivate both patients and PCP, but differed in their frequency of contact and information content. Delivery of osteoporosis medication was confirmed with pharmacists. Treatment rates were analyzed using an intention-to-treat approach. RESULTS At inclusion, 74.3% of 881 outpatients with FF were untreated. Followup at 12 months was completed in 92.3% of patients. Up to 90% of patients treated at inclusion remained treated at 12 months. Among patients who initially were untreated, 18.8% in the SC group, 40.4% in the MIN, and 53.2% in the INT groups were treated at 12 months. Change in treatment rates (adjusted for age and initial treatment) increased significantly after both MIN and INT. Only the INT intervention significantly increased treatment rates in patients with previous fractures. Negative predictors of change in treatment status included non-major FF, age younger than 65 years, and male sex. CONCLUSION Both interventions significantly increased initiation of osteoporosis treatment. Our multidisciplinary intervention builds on existing first-line structures and uses minimal specialized resources. Iterative and systematic interventions in the context of clinical care may modify the approach of PCP to osteoporosis management after FF and narrow the care gap in the long term.
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Affiliation(s)
- Sophie Roux
- Division of Rheumatology, Department of Medicine, Faculty of Medicine, University of Sherbrooke, Sherbrooke, Quebec, Canada
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Abstract
OBJECTIVES Current clinical practice guidelines identify patients at high risk for fracture who are likely to benefit from pharmacological therapy and suggest ways to monitor for effectiveness of therapy. However, there is no clear guidance on when fracture risk has been reduced to an acceptably low level. As a consequence, some patients at low risk for fracture may be treated for longer than necessary, whereas others at high risk for fracture may have treatment stopped when they might benefit from continuation of the same treatment or a change to a more potent therapeutic agent. The objective of this statement is to describe the potential clinical utility of developing a "treat-to-target" strategy for the management of patients with osteoporosis. PARTICIPANTS We recommend that a task force of clinicians, clinical investigators, and other stakeholders in the care of osteoporosis explore the options, review the evidence, and identify additional areas for investigation to establish osteoporosis treatment targets. EVIDENCE Data from large, prospective, randomized, placebo-controlled registration trials for currently available osteoporosis therapies should be analyzed for commonalities of correlations between easily measured endpoints and fracture risk. CONSENSUS PROCESS Osteoporosis experts, professional organizations, and patient care advocates should be involved in the process of developing consensus on easily measurable osteoporosis treatment targets that are supported by the best available evidence and likely to be accepted by clinicians and patients in the care of osteoporosis. CONCLUSIONS A treat-to-target strategy for osteoporosis offers the potential of improving osteoporosis care by reducing the burden of osteoporotic fractures and limiting adverse effects of therapy.
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Affiliation(s)
- E Michael Lewiecki
- New Mexico Clinical Research & Osteoporosis Center, 300 Oak Street NE, Albuquerque, New Mexico 87106, USA.
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Siris ES, Boonen S, Mitchell PJ, Bilezikian J, Silverman S. What's in a name? What constitutes the clinical diagnosis of osteoporosis? Osteoporos Int 2012; 23:2093-7. [PMID: 22543575 DOI: 10.1007/s00198-012-1991-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 10/28/2022]
Abstract
Osteoporosis is a skeletal disorder in which reductions in bone strength predispose to an increased risk for fractures. Currently, the diagnosis is officially made based exclusively on bone mineral density T-scores that are ≤-2.5 at the spine or hip. Limiting the clinical diagnosis of osteoporosis solely to a T-score-based criterion, which is the official convention in the USA, creates uncertainty about the use of the term osteoporosis to diagnose older women and men who have T-scores >-2.5, but either have already sustained low-trauma fractures or are recognized as having high fracture risk based on absolute fracture risk calculations from FRAX or other algorithms. A failure to diagnose such patients as having osteoporosis may be one component of the well-documented underdiagnosis and undertreatment of this disease which limits our ability to reduce the burden of fractures worldwide. There is a need to expand the criteria for making a clinical diagnosis and to codify these changes in order to help patients, physicians, policy makers, and payers better understand who has this disease and the elevated risk for fracture that it represents.
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Affiliation(s)
- E S Siris
- Toni Stabile Osteoporosis Center and Metabolic Bone Diseases Program, Division of Endocrinology, Department of Medicine, Columbia University Medical Center, 180 Fort Washington Avenue, New York, NY 10032, USA.
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