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Kravvariti E, Kasdagli MI, Diomatari KM, Mouratidou P, Daskalakis K, Mitsikostas DD, Sfikakis PP, Yavropoulou MP. Meta-analysis of placebo-arm dropouts in osteoporosis randomized-controlled trials and implications for nocebo-associated discontinuation of anti-osteoporotic drugs in clinical practice. Osteoporos Int 2023; 34:585-598. [PMID: 36596944 DOI: 10.1007/s00198-022-06658-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023]
Abstract
UNLABELLED Dropout from placebo arms in randomized-controlled trials is a surrogate for nocebo responses, resulting from patients' negative expectations to treatment. Among 16,460 placebo-treated patients in oral anti-osteoporotic drug trials, nocebo dropouts were 8% on average, being higher in older patients. This implies that nocebo may contribute to the osteoporosis treatment gap in clinical practice. PURPOSE Osteoporosis is a common disease requiring long-term treatment. Despite the availability of effective anti-osteoporotic drugs, adherence to treatment is low. Nocebo, a behavior mostly related to the negative expectations to a certain treatment, decreases adherence and negatively affects treatment outcomes and health-related care costs in chronic diseases. Since in double-blind placebo-controlled randomized trials any unfavorable outcome leading to discontinuation in placebo arms is considered as nocebo, we aimed to investigate the size of nocebo response in patients participating in osteoporosis trials. METHODS We searched MEDLINE, EMBASE, SCOPUS, and Cochrane databases for dropouts due to reported adverse events in the placebo arms (nocebo dropouts) in all double-blind trials investigating anti-osteoporotic drugs published between January 1993 and March 2022. Only data on bisphosphonates and selective estrogen receptor modulators (SERMs) were analyzed (Prospero registration number CRD42020212843). RESULTS Data from 44 trials were extracted. In 16,460 placebo-treated patients, the pooled nocebo-dropout was 8% both for bisphosphonates (average: 0.08; range 0.01-0.27; 95%CI 0.06-0.10) and SERMs (average: 0.08; range 0.03-0.15; 95%CI 0.05-0.13). Nocebo-dropouts were higher in bisphosphonate trials enrolling individuals ≥ 65 years (11%) (n = 18) compared to trials enrolling younger individuals (6%) (n = 18) (average: 0.11; 95%CI 0.08-0.13 vs. average: 0.06; 95%CI 0.05-0.08, respectively, p = 0.001). Participants' sex, dosing-intervals, publication year, or severity of osteoporosis had no impact on the nocebo-dropouts. CONCLUSION Almost 1 in 10 osteoporosis patients receiving placebo in trials of bisphosphonates and SERMs experiences AEs leading to dropout, implying that nocebo contributes to treatment-discontinuation in clinical practice. Efforts to identify and minimize nocebo, especially in older patients, are warranted.
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Affiliation(s)
- Evrydiki Kravvariti
- 1st Propaedeutic and Internal Medicine Clinic, Joint Academic Rheumatology Program, Laikon General Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece.
- Postgraduate Medical Studies in the Physiology of Aging and Geriatric Syndromes, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece.
| | - Maria-Iosifina Kasdagli
- Department of Hygiene and Epidemiology, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Konstantina Maria Diomatari
- Postgraduate Medical Studies in the Physiology of Aging and Geriatric Syndromes, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Pelagia Mouratidou
- Postgraduate Medical Studies in the Physiology of Aging and Geriatric Syndromes, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Kosmas Daskalakis
- Department of Surgery, Faculty of Medicine and Health, Örebro University, 701 85, Örebro, Sweden
| | - Dimos D Mitsikostas
- 1st Neurology Department, Aeginition Hospital, Medical School, National and Kapodistrian University of Athens, 11528, Athens, Greece
| | - Petros P Sfikakis
- 1st Propaedeutic and Internal Medicine Clinic, Joint Academic Rheumatology Program, Laikon General Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece
- Postgraduate Medical Studies in the Physiology of Aging and Geriatric Syndromes, School of Medicine, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Maria P Yavropoulou
- Endocrinology Unit, 1st Department of Propaedeutic and Internal Medicine, School of Medicine, Laikon General Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece
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Hiligsmann M, Maggi S, Veronese N, Sartori L, Reginster JY. Cost-effectiveness of buffered soluble alendronate 70 mg effervescent tablet for the treatment of postmenopausal women with osteoporosis in Italy. Osteoporos Int 2021; 32:595-606. [PMID: 33443610 PMCID: PMC7929941 DOI: 10.1007/s00198-020-05802-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 12/16/2020] [Indexed: 12/01/2022]
Abstract
The use of buffered soluble alendronate 70 mg effervescent tablet, a convenient dosing regimen for bisphosphonate therapy, seems a cost-effective strategy compared with relevant alternative treatments for postmenopausal women with osteoporosis aged 60 years and over in Italy. INTRODUCTION To assess the cost-effectiveness of buffered soluble alendronate (ALN) 70 mg effervescent tablet compared with relevant alternative treatments for postmenopausal osteoporotic women in Italy. METHODS A previously validated Markov microsimulation model was adjusted to the Italian healthcare setting to estimate the lifetime costs (expressed in €2019) per quality-adjusted life-years (QALY) of buffered soluble ALN compared with generic ALN, denosumab, zoledronic acid and no treatment. Pooled efficacy data derived from the NICE network meta-analysis were used for bisphosphonate treatments. Two treatment duration scenarios were assessed: 1 year using persistence data derived from an Italian prospective observational study including 144 and 216 postmenopausal osteoporotic women on buffered soluble ALN and oral ALN, respectively, and 3 years. Analyses were conducted for women 60-80 years of age with a bone mineral density T-score ≤ - 3.0 or with existing vertebral fractures. RESULTS In all simulated populations, buffered soluble ALN was dominant (more QALYs, lower costs) compared to denosumab. The cost per QALY gained of buffered soluble ALN compared to generic ALN and no treatment always falls below €20,000 per QALY gained. In the 1-year treatment scenario, zoledronic acid was associated with more QALY than buffered soluble ALN but the cost per QALY gained of zoledronic acid compared with buffered soluble ALN was always higher than €70,000, while buffered soluble ALN was dominant in the 3-year treatment scenario. CONCLUSION This study suggests that buffered soluble ALN represents a cost-effective strategy compared with relevant alternative treatments for postmenopausal osteoporosis women in Italy aged 60 years and over.
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Affiliation(s)
- M Hiligsmann
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
| | - S Maggi
- CNR-NI, Aging Branch-Padua, Padua, Italy
| | - N Veronese
- Department of Geriatrics, University of Palermo, Palermo, Italy
| | - L Sartori
- Department of Medicine, University of Padua, Padua, Italy
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
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De Martinis M, Sirufo MM, Ginaldi L. Osteoporosis: Current and Emerging Therapies Targeted to Immunological Checkpoints. Curr Med Chem 2021; 27:6356-6372. [PMID: 31362684 PMCID: PMC8206194 DOI: 10.2174/0929867326666190730113123] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/12/2019] [Accepted: 07/17/2019] [Indexed: 12/17/2022]
Abstract
Osteoporosis is a skeletal pathology characterized by compromised bone strength leading to increased risk of fracture, mainly the spine and hip fractures. Osteoporosis affects more than 200 million people worldwide and because of the skeletal fractures it causes, represents a major cause of morbidity, disability and mortality in older people. Recently, the new discoveries of osteoimmunology have clarified many of the pathogenetic mechanisms of osteoporosis, helping to identify new immunological targets for its treatment opening the way for new and effective therapies with biological drugs. Currently, there are basically two monoclonal antibodies for osteoporosis therapy: denosumab and romosozumab. Here, we focus on the modern approach to the osteoporosis management and in particular, on current and developing biologic drugs targeted to new immunological checkpoints, in the landscape of osteoimmunology.
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Affiliation(s)
- Massimo De Martinis
- Department of Life, Health, & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Maria Maddalena Sirufo
- Department of Life, Health, & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Lia Ginaldi
- Department of Life, Health, & Environmental Sciences, University of L'Aquila, L'Aquila, Italy
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Chandran M, Ganesan G, Tan K, Reginster JY, Hiligsmann M. Cost-effectiveness of FRAX®-based intervention thresholds for management of osteoporosis in Singaporean women. Osteoporos Int 2021; 32:133-144. [PMID: 32797250 PMCID: PMC7755873 DOI: 10.1007/s00198-020-05536-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022]
Abstract
UNLABELLED Cost-effectiveness analysis of FRAX® intervention thresholds (ITs) in Singaporean women > 50 years of age showed that generic alendronate was cost-effective at age-dependent major osteoporotic fracture (MOF) IT from the ages of 65 years for both full and real-world adherence whilst hip fracture (HF) ITs were cost-effective from the ages of 60 and 65 years. Alendronate was cost-effective irrespective of age only at fixed MOF IT of 14% and HF IT of 3.5%. INTRODUCTION FRAX®-based intervention thresholds (ITs) were recently identified for osteoporosis management in Singapore. This study aimed to assess the cost-effectiveness of ITs in Singaporean women over the age of 50 years. METHODS A validated Markov microsimulation model was used to estimate the lifetime healthcare costs (SGD2019) per quality-adjusted life-years (QALY) of generic alendronate compared with no treatment. Cost-effectiveness of age-dependent FRAX® major osteoporotic fracture (MOF) and hip fracture (HF) ITs was explored. In addition, ITs that would lead to cost-effectiveness were computed. Fracture incidence and cost data were obtained from the Ministry of Health and a previously published Singaporean study. A cost-effectiveness threshold of SGD 62,500/QALY gained was used, based conservatively on 0.7 times the Singapore GDP per capita. RESULTS Generic alendronate was shown to be cost-effective at MOF ITs from the ages of 65 years, while HF ITs were cost-effective from the ages of 60 and 65 years, assuming full and real-world adherence, respectively. A 14% MOF and a 3.5% HF ITs were required for alendronate to be cost-effective above 50 years. CONCLUSION This study suggests that the treatment of Singaporean women with alendronate is cost-effective at age-dependant FRAX® intervention thresholds at 65 years and older. Furthermore, identifying women at any age above 50 years with a 10-year risk of MOF or HF of 14% or 3.5% would lead to efficient use of resources. Cost-effective access to therapy for patients at high fracture probability based on FRAX® could contribute to reduce the growing burden of osteoporotic fractures in Singapore.
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Affiliation(s)
- M. Chandran
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - G. Ganesan
- Ministry of Health, Singapore, Singapore
| | - K.B. Tan
- Ministry of Health, Singapore, Singapore
- School of Public Health, National University of Singapore, Singapore, Singapore
| | - J.-Y. Reginster
- Center for Investigation in Bone and Articular Cartilage, University of Liege, Liège, Belgium
| | - M. Hiligsmann
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
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Zhou J, Zhang Q, Liu X. Challenges to the Possible Use of Bisphosphonates in Early-Stage Osteoarthritis. J Bone Miner Res 2020; 35:2301-2302. [PMID: 32950041 DOI: 10.1002/jbmr.4172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Junteng Zhou
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Qi Zhang
- Department of Endocrinology and Metabolism, Sichuan University West China Hospital, Chengdu, China
| | - Xiaojing Liu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
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Lomakin NV, Buryachkovskaya LI, Zolin DA, Kazey VI. A Prospective, Initiative, Single-Center Open Post-Registration Comparative Study of Laboratory Efficacy of Various Forms of Acetylsalicylic Acid in a Cardioprotective Dose with Different Composition of Excipients: Results of the SFAIROS Study. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2020. [DOI: 10.20996/1819-6446-2020-06-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- N. V. Lomakin
- Central Hospital with Outpatient Department, Administrative Department of the President of the Russian Federation
| | | | - D. A. Zolin
- Central Hospital with Outpatient Department, Administrative Department of the President of the Russian Federation
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Fontalis A, Eastell R. The challenge of long-term adherence: The role of bone turnover markers in monitoring bisphosphonate treatment of osteoporosis. Bone 2020; 136:115336. [PMID: 32234415 DOI: 10.1016/j.bone.2020.115336] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 12/17/2022]
Abstract
Oral Bisphosphonates (BPs) are the mainstay of osteoporotic treatment, however long-term adherence remains a challenge, primarily owing to the chronic character of the disease and the regimen complexity. Poor compliance has been shown to have a clear link to fracture risk. The role of bone turnover markers (BTMs) as a tool to ascertain adherence and response to therapy is supported by their rapid response to treatment; a decrease in values is witnessed within days or weeks of commencing treatment. A greater reduction of serum CTX and NTX is evidenced with alendronate and ibandronate compared to risedronate. A change in bone formation BTMs appears to be related to vertebral fracture risk reduction, whereas no significant relationship is evident for hip and non-vertebral fractures. The utility of BTMs as an adjunct for monitoring withdrawal of treatment with oral BP has also been suggested. Finally, studies evaluating BTMs as an intervention, failed to demonstrate any effect on adherence. This review explores the challenge of long-term adherence with bisphosphonates and provides an analytic framework with respect to the role of BTMs in monitoring bisphosphonate treatment, adherence and the offset of treatment effect.
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Affiliation(s)
- Andreas Fontalis
- Academic Unit of Bone Metabolism, University of Sheffield, Sheffield, UK.
| | - Richard Eastell
- Academic Unit of Bone Metabolism, University of Sheffield, Sheffield, UK
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Uzoigwe CE, Shoaib A. Patents and intellectual property in orthopaedics and arthroplasty. World J Orthop 2020. [DOI: 10.5312/wjo.v11.i1.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Uzoigwe CE, Shoaib A. Patents and intellectual property in orthopaedics and arthroplasty. World J Orthop 2020; 11:1-9. [PMID: 31966964 PMCID: PMC6960299 DOI: 10.5312/wjo.v11.i1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 05/23/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023] Open
Abstract
The provision of musculoskeletal services comes at a cost. This is, in part, due to the expense of patent-protected orthopaedic implants. However, patents have a finite lifespan. Patents of the most successful implants are now beginning to expire. They will be exposed to competition from generic but equivalent implants. The net effect is potentially a dramatic diminution in cost. One company, Orthimo, has taken advantage of this and begun manufacturing generic implants with identical design specifications to the most bio-durable hip prostheses. This will ultimately have a radical impact upon musculoskeletal healthcare provision with regard to cost and accessibility. The expiration of drug patents, with the subsequent use of generic drugs saves £7.1 billion annually in the United Kingdom and $254 billion in the USA. Estimates suggest the introduction of equivalent implants could result in an annual cost saving to the United Kingdom National Health Service of £120 million. Intellectual property remains an enigmatic area of law. It encompasses anodyne principles that seek to protect innovation but are open to manipulation and exploitation. The last decade has seen the emergence of undesirable practices in the medical industry such as "patent trolling". Here we explore patents and their repercussions for musculoskeletal care.
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Affiliation(s)
| | - Ahmed Shoaib
- Department of Trauma and Orthopaedics, Huddersfield Royal Infirmary, Huddersfield HD3 3EA, United Kingdom
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10
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Retrospective evaluation of persistence in osteoporosis therapy with oral bisphosphonates in Italy: the TOBI study. Aging Clin Exp Res 2019; 31:1541-1547. [PMID: 31030419 DOI: 10.1007/s40520-019-01205-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/12/2019] [Indexed: 10/26/2022]
Abstract
The patients' persistence with osteoporosis treatments is low. This retrospective, multicenter survey showed that almost 30% of osteoporotic patients discontinued the treatment within the first 6 months and that those taking drinkable bisphosphonates were less likely to interrupt the therapy; instead, the use of generic bisphosphonates was associated to a more precocious interruption. PURPOSE Low persistence with osteoporosis medications is associated with higher fracture risk. This study aimed to assess the persistence to treatment with oral bisphosphonates among Italian osteoporotic patients under treatment for at least 6 months and to evaluate whether the different oral formulations of bisphosphonates may influence the interruption of the therapy. METHODS 723 consecutive osteoporotic patients, aged 50 years or over, referred as outpatients for a follow-up visit after receiving a prescription of an oral bisphosphonate for the first time for at least 6 months were enrolled in this retrospective, multicenter survey carried out under conditions of usual clinical practice. All the patients enrolled were submitted to a standardized interview. RESULTS 191 patients turned out to have discontinued treatment (28.7%), the more common causes for interruption being the adverse events (43.9%), fear of adverse events (23.3%) and perceived absence of efficacy of the treatment (15.8%). The osteoporotic patients taking drinkable bisphosphonate or on treatment with aromatase inhibitors or under the age of 70 years were less likely to interrupt the treatment. However, these associations were no longer significant when the pharmaceutical formulation (generic vs branded) was included into the multivariate logistic regression model. CONCLUSION This study suggests that the new drinkable formulations of bisphosphonates could be an interesting option able to reduce upper GI adverse events, thus increasing persistence; whereas the generic formulations of bisphosphonates were associated to a premature discontinuation.
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Hiligsmann M, Cornelissen D, Vrijens B, Abrahamsen B, Al-Daghri N, Biver E, Brandi ML, Bruyère O, Burlet N, Cooper C, Cortet B, Dennison E, Diez-Perez A, Gasparik A, Grosso A, Hadji P, Halbout P, Kanis JA, Kaufman JM, Laslop A, Maggi S, Rizzoli R, Thomas T, Tuzun S, Vlaskovska M, Reginster JY. Determinants, consequences and potential solutions to poor adherence to anti-osteoporosis treatment: results of an expert group meeting organized by the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO) and the International Osteoporosis Foundation (IOF). Osteoporos Int 2019; 30:2155-2165. [PMID: 31388696 PMCID: PMC6811382 DOI: 10.1007/s00198-019-05104-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 07/18/2019] [Indexed: 11/22/2022]
Abstract
UNLABELLED Many patients at increased risk of fractures do not take their medication appropriately, resulting in a substantial decrease in the benefits of drug therapy. Improving medication adherence is urgently needed but remains laborious, given the numerous and multidimensional reasons for non-adherence, suggesting the need for measurement-guided, multifactorial and individualized solutions. INTRODUCTION Poor adherence to medications is a major challenge in the treatment of osteoporosis. This paper aimed to provide an overview of the consequences, determinants and potential solutions to poor adherence and persistence to osteoporosis medication. METHODS A working group was organized by the European Society on Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal diseases (ESCEO) to review consequences, determinants and potential solutions to adherence and to make recommendations for practice and further research. A systematic literature review and a face-to-face experts meeting were undertaken. RESULTS Medication non-adherence is associated with increased risk of fractures, leading to a substantial decrease in the clinical and economic benefits of drug therapy. Reasons for non-adherence are numerous and multidimensional for each patient, depending on the interplay of multiple factors, suggesting the need for multifactorial and individualized solutions. Few interventions have been shown to improve adherence or persistence to osteoporosis treatment. Promising actions include patient education with counselling, adherence monitoring with feedback and dose simplification including flexible dosing regimen. Recommendations for practice and further research were also provided. To adequately manage adherence, it is important to (1) understand the problem (initiation, implementation and/or persistence), (2) to measure adherence and (3) to identify the reason of non-adherence and fix it. CONCLUSION These recommendations are intended for clinicians to manage adherence of their patients and to researchers and policy makers to design, facilitate and appropriately use adherence interventions.
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Affiliation(s)
- M Hiligsmann
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, the Netherlands.
| | - D Cornelissen
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, the Netherlands
| | - B Vrijens
- Research and Development, AARDEX Group and Department of Public Health, University of Liège, Liege, Belgium
| | - B Abrahamsen
- Open Patient Data Explorative Network, Institute of Clinical Resesarch, University of Southern Denmark, Odense, Denmark
- Department of Medicine, Holbæk Hospital, Holbæk, Denmark
- NDORMS, University of Oxford, Oxford, UK
| | - N Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - E Biver
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - M L Brandi
- FirmoLab, Fondazione FIRMO e Università di Firenze, Florence, Italy
| | - O Bruyère
- Division of Public Health, Epidemiology and Health Economics, Liège, Belgium and WHO Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, University of Liège, Liege, Belgium
| | - N Burlet
- Global Head of Patient Insights Innovation, Patient Solution Unit, Sanofi, Lyon, France
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - B Cortet
- Department of Rheumatology and EA 4490, University-Hospital of Lille, Lille, France
| | - E Dennison
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK
| | - A Diez-Perez
- Musculoskeletal Research Unit, IMIM-Parc Salut Mar, CIBERFES, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - A Gasparik
- Department of Public Health, University of Medicine, Pharmacy, Science and Technology of Targu Mures, Targu Mures, Romania
| | - A Grosso
- Patient partner, Geneva, Switzerland
| | - P Hadji
- Frankfurt Centre of Bone Health, Frankfurt, Germany & Philips-University of Marburg, Marburg, Germany
| | - P Halbout
- International Osteoporosis Foundation, Nyon, Switzerland
| | - J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
- Mary McKillop Health Institute, Catholic University of Australia, Melbourne, Australia
| | - J M Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - A Laslop
- Scientific Office, Austrian Federal Office for Safety in Health Care, Vienna, Austria
| | - S Maggi
- CNR Aging Branch-NI, Padua, Italy
| | - R Rizzoli
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - T Thomas
- Department of Rheumatology, Hôpital Nord, CHU Saint-Etienne, Saint-Etienne and INSERM U1059, Université de Lyon-Université Jean Monnet, Saint-Etienne, France
| | - S Tuzun
- Department of Physical Medicine and Rehabilitation, Cerrahpaşa Medical Faculty, İstanbul University Cerrahpaşa, Istanbul, Turkey
| | - M Vlaskovska
- Medical Faculty, Department of Pharmacology, Medical University Sofia, Sofia, Bulgaria
| | - J Y Reginster
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Division of Public Health, Epidemiology and Health Economics, Liège, Belgium and WHO Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, University of Liège, Liege, Belgium
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Dragomirescu I, Llorca J, Gómez-Acebo I, Dierssen-Sotos T. A join point regression analysis of trends in mortality due to osteoporosis in Spain. Sci Rep 2019; 9:4264. [PMID: 30862942 PMCID: PMC6414692 DOI: 10.1038/s41598-019-40806-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 02/20/2019] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is a major health problem in terms of fracture probability and disability. The aim of this ecological study is to identify the temporal trends in osteoporosis mortality in Spain from 1999 to 2015. Data on the Spanish population and number of deaths due to osteoporosis were obtained from the Spanish National Institute for Statistics. Age-adjusted mortality rates were estimated. Join point regression was used to identify the years when changes in mortality s and annual percentage change in mortality rates took place. Women presented a greater mortality rate decrease (p < 0.001), though this mortality difference by sex was reduced by half at the end of the period. The higher the age, the faster the mortality rate declined in women, while no clear pattern could be identified in men. In women, significant changes in trends were identified in three age groups (50-54, 60-64 and 80-84 years old). A sustained decrease in osteoporosis-associated mortality was found in women aged 75-79 and ≥85 years and men aged 60-64. In conclusion, mortality caused by osteoporosis in Spain is decreasing faster in the older age ranges especially in women.
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Affiliation(s)
| | - Javier Llorca
- School of Medicine, University of Cantabria, Santander, Spain
- IDIVAL, Santander, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Santander, Spain
| | - Inés Gómez-Acebo
- School of Medicine, University of Cantabria, Santander, Spain.
- IDIVAL, Santander, Spain.
- CIBER Epidemiología y Salud Pública (CIBERESP), Santander, Spain.
| | - Trinidad Dierssen-Sotos
- School of Medicine, University of Cantabria, Santander, Spain
- IDIVAL, Santander, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Santander, Spain
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Hiligsmann M, Reginster JY. Cost-effectiveness of gastro-resistant risedronate tablets for the treatment of postmenopausal women with osteoporosis in France. Osteoporos Int 2019; 30:649-658. [PMID: 30701342 PMCID: PMC6423313 DOI: 10.1007/s00198-018-04821-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/18/2018] [Indexed: 12/21/2022]
Abstract
UNLABELLED The use of gastro-resistant risedronate, a convenient dosing regimen for oral bisphosphonate therapy, seems a cost-effective strategy compared with weekly alendronate, generic risedronate, and no treatment for the treatment of postmenopausal women with osteoporosis in France. INTRODUCTION Gastro-resistant (GR) risedronate tablets are associated with improved persistence compared to common oral bisphosphonates but are slightly more expensive. This study assessed its cost-effectiveness compared to weekly alendronate and generic risedronate for the treatment of postmenopausal women with osteoporosis in France. METHODS A previously validated Markov microsimulation model was used to estimate the lifetime costs (expressed in €2017) per quality-adjusted life-years (QALY) of GR risedronate compared with weekly alendronate, generic risedronate, and no treatment. Pooled efficacy data for bisphosphonates derived from a previous meta-analysis were used for all treatment options, and persistence data (up to 3 years) were obtained from a large Australian longitudinal study. Evaluation was done for high-risk women 60-80 years of age, with a bone mineral density (BMD) T-score ≤ - 2.5 and/or prevalent vertebral fractures. RESULTS In all of the simulated populations, GR risedronate was cost-effective compared to alendronate, generic risedronate, and no treatment at a threshold of €60,000 per QALY gained. In women with a BMD T-score ≤ - 2.5 and prevalent vertebral fractures, the cost per QALY gained of GR risedronate compared to alendronate, generic risedronate, and no treatment falls below €20,000 per QALY gained. In women aged 75 years and older, GR risedronate was even shown to be dominant (more QALYs, less costs) compared to alendronate, generic risedronate, and no treatment. CONCLUSION This study provides the first economic results about GR risedronate, suggesting that it represents a cost-effective strategy compared with weekly alendronate and generic risedronate for the treatment of postmenopausal women with osteoporosis in France.
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Affiliation(s)
- M Hiligsmann
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, P.O. Box 616, 6200, MD, Maastricht, The Netherlands.
| | - 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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14
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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: 902] [Impact Index Per Article: 180.4] [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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15
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Abstract
Osteoporosis increases the risk of fractures, which are associated with increased mortality and lower quality of life. Patients with prevalent fracture are at high risk to of sustaining another one. Optimal protein and calcium intakes, and vitamin D supplies, together with regular weight bearing physical exercise are the corner stones of fracture prevention. Evidence for anti-fracture efficacy of pharmacological interventions relies on results from randomised controlled trials in postmenopausal women with fractures as the primary outcome. Treatments with bone resorption inhibitors, like bisphosphonates or denosumab, and bone formation stimulator like teriparatide, reduce vertebral and non-vertebral fracture risk. A reduction in vertebral fracture risk can already be detected within a year after starting therapy.
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Affiliation(s)
- René Rizzoli
- Service of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, 1211 Geneva 14, Switzerland.
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16
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Lewiecki EM, Binkley N, Bilezikian JP. Stop the war on DXA! Ann N Y Acad Sci 2018; 1433:12-17. [DOI: 10.1111/nyas.13707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 11/26/2022]
Affiliation(s)
| | | | - John P. Bilezikian
- Columbia University College of Physicians and Surgeons; New York New York
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17
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Diez-Perez A, Naylor KE, Abrahamsen B, Agnusdei D, Brandi ML, Cooper C, Dennison E, Eriksen EF, Gold DT, Guañabens N, Hadji P, Hiligsmann M, Horne R, Josse R, Kanis JA, Obermayer-Pietsch B, Prieto-Alhambra D, Reginster JY, Rizzoli R, Silverman S, Zillikens MC, Eastell R. International Osteoporosis Foundation and European Calcified Tissue Society Working Group. Recommendations for the screening of adherence to oral bisphosphonates. Osteoporos Int 2017; 28:767-774. [PMID: 28093634 PMCID: PMC5302161 DOI: 10.1007/s00198-017-3906-6] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 01/02/2017] [Indexed: 11/29/2022]
Abstract
Adherence to oral bisphosphonates is low. A screening strategy is proposed based on the response of biochemical markers of bone turnover after 3 months of therapy. If no change is observed, the clinician should reassess the adherence to the treatment and also other potential issues with the drug. INTRODUCTION Low adherence to oral bisphosphonates is a common problem that jeopardizes the efficacy of treatment of osteoporosis. No clear screening strategy for the assessment of compliance is widely accepted in these patients. METHODS The International Osteoporosis Foundation and the European Calcified Tissue Society have convened a working group to propose a screening strategy to detect a lack of adherence to these drugs. The question to answer was whether the bone turnover markers (BTMs) PINP and CTX can be used to identify low adherence in patients with postmenopausal osteoporosis initiating oral bisphosphonates for osteoporosis. The findings of the TRIO study specifically address this question and were used as the basis for testing the hypothesis. RESULTS Based on the findings of the TRIO study, specifically addressing this question, the working group recommends measuring PINP and CTX at baseline and 3 months after starting therapy to check for a decrease above the least significant change (decrease of more than 38% for PINP and 56% for CTX). Detection rate for the measurement of PINP is 84%, for CTX 87% and, if variation in at least one is considered when measuring both, the level of detection is 94.5%. CONCLUSIONS If a significant decrease is observed, the treatment can continue, but if no decrease occurs, the clinician should reassess to identify problems with the treatment, mainly low adherence.
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Affiliation(s)
- A Diez-Perez
- Department of Internal Medicine, Hospital del Mar-IMIM-Universitat Autònoma and CIBERFES-ISCIII, P Maritim 25-29, 08003, Barcelona, Spain.
| | - K E Naylor
- Academic Unit of Bone Metabolism, Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - B Abrahamsen
- Institute of Clinical Research, Odense Patient Data Explorative Network, University of Southern Denmark, Odense, Denmark
- Department of Medicine, Holbæk Hospital, Holbæk, Denmark
| | - D Agnusdei
- Independent Scientific Consultant, Florence, Italy
| | - M L Brandi
- Mineral and Bone Metabolic Unit, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, Institute of Musculoskeletal Sciences, University of Oxford, and CIBERFES-ISCIII, Oxford, UK
| | - E Dennison
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, UK
| | - E F Eriksen
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - D T Gold
- Duke University Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, NC, USA
| | - N Guañabens
- Rheumatology Department, Hospital Clínic, University of Barcelona, CIBERehd, Barcelona, Spain
| | - P Hadji
- Department of Bone Oncology, Endocrinology and Reproductive Medicine, Nordwest Hospital, Frankfurt, Germany
| | - M Hiligsmann
- Department of Health Services Research, School for Public Health & Primary Care (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - R Horne
- Centre for Behavioural Medicine, UCL School of Pharmacy, University College London, London, UK
| | - R Josse
- Department of Nutritional Sciences and Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - J A Kanis
- Centre for Metabolic Bone Diseases, Centre for Integrated Research in Musculoskeletal Ageing, University of Sheffield, Sheffield, UK
| | - B Obermayer-Pietsch
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - D Prieto-Alhambra
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - R Rizzoli
- Service of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - S Silverman
- Cedars-Sinai/University of California, Los Angeles, USA
| | - M C Zillikens
- Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - R Eastell
- Academic Unit of Bone Metabolism, Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
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18
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Abstract
Postmenopausal osteoporosis is associated with microarchitectural deterioration and increased risk of fracture. Osteoporosis therapy effectively reduces the risk of vertebral, nonvertebral, and hip fracture and has been associated with increased survival. Currently approved treatments for osteoporosis include bisphosphonates, denosumab, selective estrogen receptor modulators, and teriparatide. This article reviews the adverse events of therapy associated with these medical interventions. Hormone replacement therapy is not included, because it is no longer indicated for the treatment of osteoporosis in all countries. Calcitonin and strontium ranelate are also not included, because their indication for osteoporosis has recently been limited or withdrawn.
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Affiliation(s)
- Moin Khan
- McMaster University, 1200 Main Street West, Hamilton, ON L8N 3Z5, Canada
| | - Angela M Cheung
- University of Toronto, 200 Elizabeth Street, 7 Eaton North Room 221, Toronto, ON M5G 2C4, Canada
| | - Aliya A Khan
- McMaster University, 1200 Main Street West, Hamilton, ON L8N 3Z5, Canada.
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19
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Jha S, Bhattacharyya T. Utilization and cost of anti-osteoporosis therapy among US Medicare beneficiaries. Arch Osteoporos 2016; 11:28. [PMID: 27576482 PMCID: PMC11060330 DOI: 10.1007/s11657-016-0283-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 08/16/2016] [Indexed: 02/03/2023]
Abstract
UNLABELLED There is a strong impetus to prevent and treat osteoporosis to prevent fractures. $990 million dollars was spent on anti-osteoporosis drugs in 2013. As we shift our focus on primary prevention of fractures, providers are encouraged to find the most cost-effective anti-osteoporosis therapy for patients. PURPOSE Osteoporosis is a major global problem with osteoporotic fractures posing a potentially avoidable burden on healthcare resources. We studied the utilization and cost of anti-osteoporotic therapy using the 2013 Medicare Part D data. METHODS Descriptive data were produced from Microsoft Excel and SPSS regarding the anti-osteoporotic drugs of interest. RESULTS In total, Medicare and its beneficiaries spent approximately $990 million on anti-osteoporotic therapy in 2013. Despite this cost, only one in two adults with osteoporosis aged 65 and older received a prescription for an anti-osteoporosis drug. $756 million (77 %) was attributable to brand name drugs which accounted for 2,459,931 claims (22 %). Generic dispensing rate varied from 57-86 % (mean 77 ± 6) across the different states in the USA. States that mandate substitution with generic equivalents had a higher generic dispensing rate compared to the states that permit generic substitution (92 vs. 90 %; p < 0.05). After adjusting for claim counts, we found that if the states that permit substitution with generic equivalents showed the same generic dispensing rate of 92 % as the states that mandate such substitution, there is a potential for savings of $7.5 million, approximately 9 % of the total expenditure in these states on oral bisphosphonates alone. Thirty-eight percent of the total prescriptions from orthopedic surgeons were for Forteo® or Prolia® compared to 12.5 % from specialists. CONCLUSIONS These findings highlight the need for ongoing training for physicians who engage in the care of patients with osteoporosis to manage the disease in a cost-effective manner.
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Affiliation(s)
- Smita Jha
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, 10 Center Drive, Bldg 10-CRC, Room 4-1341, Bethesda, MD, USA.
| | - Timothy Bhattacharyya
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, 10 Center Drive, Bldg 10-CRC, Room 4-1341, Bethesda, MD, USA
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20
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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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21
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Tan W, Sun J, Zhou L, Li Y, Wu X. Randomized trial comparing efficacies of zoledronate and alendronate for improving bone mineral density and inhibiting bone remodelling in women with post-menopausal osteoporosis. J Clin Pharm Ther 2016; 41:519-23. [PMID: 27440710 DOI: 10.1111/jcpt.12429] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/30/2016] [Indexed: 12/21/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Bisphosphonates are the first-line medications for treating osteoporosis. The aim of our prospective study was to compare the efficacy of zoledronate with that of alendronate in women with post-menopausal osteoporosis based on the evaluations of bone mineral density (BMD) and serum levels of biochemical markers of bone remodelling. METHODS Chinese women with post-menopausal osteoporosis were randomly assigned to the zoledronate (n = 52) or alendronate (n = 53) group, and were treated with 5 mg zoledronate intravenously once per year and 70 mg alendronate orally once per week, respectively. During a 3-year follow-up period, the lumbar spine, femoral neck and total hip were examined using dual-energy x-ray absorptiometry every 12 months to assess BMD, and the serum levels of amino-terminal propeptide of type I procollagen (P1NP) and carboxy-terminal cross-linked telopeptides of type 1 collagen (CTX) were measured to evaluate bone formation and resorption, respectively. RESULTS AND DISCUSSION Greater increases in BMD occurred in the zoledronate group over the 3-year follow-up period, with increases in BMD of 41·3%, 13·5% and 20·0% at the lumbar spine, femoral neck and total hip, respectively, compared with 16·9%, 5·88% and 8·93% in the alendronate group, respectively (P < 0·05 for all). At the 3-year follow-up, P1NP and β-CTX levels were reduced by 42·1% and 50·5% in the zoledronate group, respectively, whereas the levels of each were reduced by 19·5% and 19·4% in the alendronate group, respectively (P < 0·05 for all). WHAT IS NEW AND CONCLUSIONS Once yearly zoledronate administered intravenously was more efficacious for improving BMD and reducing the serum levels of P1NP and β-CTX in Chinese women with post-menopausal osteoporosis than alendronate administered orally once per week. The incidence of adverse events after the second and third zoledronate treatments was substantially lower than that in the alendronate group, suggesting a substantially lower risk of adverse events with long-term use of zoledronate in Chinese women, compared with that of alendronate use.
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Affiliation(s)
- W Tan
- Department of Endocrinology, Huadong Hospital, Fu Dan University, Shanghai, China
| | - J Sun
- Department of Endocrinology, Huadong Hospital, Fu Dan University, Shanghai, China
| | - L Zhou
- Department of Endocrinology, Huashan Hospital, Fu Dan University, Shanghai, China
| | - Y Li
- Department of Endocrinology, Huashan Hospital, Fu Dan University, Shanghai, China
| | - X Wu
- Department of Endocrinology, Huashan Hospital, Fu Dan University, Shanghai, China
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22
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Vescini F, Attanasio R, Balestrieri A, Bandeira F, Bonadonna S, Camozzi V, Cassibba S, Cesareo R, Chiodini I, Francucci CM, Gianotti L, Grimaldi F, Guglielmi R, Madeo B, Marcocci C, Palermo A, Scillitani A, Vignali E, Rochira V, Zini M. Italian association of clinical endocrinologists (AME) position statement: drug therapy of osteoporosis. J Endocrinol Invest 2016; 39:807-34. [PMID: 26969462 PMCID: PMC4964748 DOI: 10.1007/s40618-016-0434-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/22/2016] [Indexed: 12/17/2022]
Abstract
Treatment of osteoporosis is aimed to prevent fragility fractures and to stabilize or increase bone mineral density. Several drugs with different efficacy and safety profiles are available. The long-term therapeutic strategy should be planned, and the initial treatment should be selected according to the individual site-specific fracture risk and the need to give the maximal protection when the fracture risk is highest (i.e. in the late life). The present consensus focused on the strategies for the treatment of postmenopausal osteoporosis taking into consideration all the drugs available for this purpose. A short revision of the literature about treatment of secondary osteoporosis due both to androgen deprivation therapy for prostate cancer and to aromatase inhibitors for breast cancer was also performed. Also premenopausal females and males with osteoporosis are frequently seen in endocrine settings. Finally particular attention was paid to the tailoring of treatment as well as to its duration.
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Affiliation(s)
- F. Vescini
- Endocrinology and Metabolic Disease Unit, Azienda Ospedaliero-Universitaria Santa Maria della Misericordia, P.le S.M. della Misericordia, 15, 33100 Udine, Italy
| | - R. Attanasio
- Endocrinology Service, Galeazzi Institute IRCCS, Milan, Italy
| | - A. Balestrieri
- Unit of Endocrinology and Diabetology, Department of Internal Medicine, M. Bufalini Hospital, Cesena, Italy
| | - F. Bandeira
- Division of Endocrinology, Diabetes and Bone Diseases, Agamenon Magalhães Hospital, University of Pernambuco Medical School, Recife, Brazil
| | | | - V. Camozzi
- Unit of Endocrinology, Department of Medicine, University of Padova, Padua, Italy
| | - S. Cassibba
- Endocrinology and Diabetology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - R. Cesareo
- Endocrinology, S. Maria Goretti Hospital, Latina, Italy
| | - I. Chiodini
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - C. Maria Francucci
- Post Acute and Long Term Care Department, I.N.R.C.A., Ancona, Italy
- San Pier Damiano Hospital, Villa Maria Group Care and Research, Faenza, Ravenna Italy
| | - L. Gianotti
- Endocrinology and Metabolic Diseases, S. Croce e Carle Hospital, Cuneo, Italy
| | - F. Grimaldi
- Endocrinology and Metabolic Disease Unit, Azienda Ospedaliero-Universitaria Santa Maria della Misericordia, P.le S.M. della Misericordia, 15, 33100 Udine, Italy
| | - R. Guglielmi
- Endocrinology Unit, Regina Apostolorum Hospital, Albano Laziale, Rome Italy
| | - B. Madeo
- Integrated Department of Medicine, Endocrinology and Metabolism, Geriatrics, University of Modena and Reggio Emilia, Modena, Italy
| | - C. Marcocci
- Endocrine Unit 2, Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - A. Palermo
- Department of Endocrinology and Diabetes, University Campus Bio-Medico, Rome, Italy
| | - A. Scillitani
- Endocrinology, Casa Sollievo della Sofferenza IRCCS, San Giovanni Rotondo, Italy
| | - E. Vignali
- Department of Clinical and Experimental Medicine, University Hospital of Pisa, Pisa, Italy
| | - V. Rochira
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - M. Zini
- Endocrinology Unit, Arcispedale S. Maria Nuova IRCCS, Reggio Emilia, Italy
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23
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Clark EM, Gould VC, Tobias JH, Horne R. Natural history, reasons for, and impact of low/non-adherence to medications for osteoporosis in a cohort of community-dwelling older women already established on medication: a 2-year follow-up study. Osteoporos Int 2016; 27:579-90. [PMID: 26286625 DOI: 10.1007/s00198-015-3271-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/28/2015] [Indexed: 10/23/2022]
Abstract
UNLABELLED Approximately 15 % of older women on oral medications for osteoporosis could be considered for alternatives including parenteral therapies. Collection of data on socio-demographic/clinical variables is unlikely to be helpful in predicting low/non-adherence. Alternative approaches are needed to identify individuals at risk of low/non-adherence. INTRODUCTION This study aims to identify individual patient reasons for stopping medications for osteoporosis, and to investigate whether this can be predicted from knowledge about socio-demographic/clinical data, or whether alternative approaches need to be used. METHODS The Cohort for Skeletal Health in Bristol and Avon (COSHIBA) recruited 3200 older women from South West UK, of whom a proportion were on medications for osteoporosis at baseline. Information on self-reported adherence and reasons for low/non-adherence were collected at 6-monthly intervals over a 2-year period. Data was also collected on potential predictors of and impact of low/non-adherence. RESULTS Two hundred thirty-three of 3200 (7.3 %) women were on medications for osteoporosis at baseline. Mean length of time on treatment prior to enrolment was 46 months. Of those on osteoporosis medications, 94.9 % were on bisphosphonates; 8.5 % reported low adherence and 21.6 % stopped their medication completely over the 2-year follow-up period. Length of time on medication at baseline did not influence rates of low/non-adherence. Reasons for low/non-adherence to bisphosphonates included side effects (53.9 %), practical reasons such as forgetting to take them (18.0 %) and beliefs about medications (20.5 %). No convincing predictors of low/non-adherence were identified. CONCLUSIONS Approximately 15 % of older women on oral medications for osteoporosis could be considered for alternatives including parenteral therapies. This has important implications for healthcare provision. Collection of data on socio-demographic/clinical variables is unlikely to be helpful in predicting low/non-adherence. Alternative approaches are needed to identify individuals at risk of low/non-adherence to osteoporosis medications.
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Affiliation(s)
- E M Clark
- Musculoskeletal Research Unit, University of Bristol, Bristol, UK.
- Musculoskeletal Research Unit, School of Clinical Sciences, Southmead Hospital, University of Bristol, Learning and Research Building (Level 1), BS10 5NB, Bristol, UK.
| | - V C Gould
- Musculoskeletal Research Unit, University of Bristol, Bristol, UK
| | - J H Tobias
- Musculoskeletal Research Unit, University of Bristol, Bristol, UK
| | - R Horne
- Centre for Behavioural Medicine, University College London, London, UK
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Yun H, Delzell E, Saag KG, Kilgore ML, Morrisey MA, Muntner P, Matthews R, Guo L, Wright N, Smith W, Colón-Emeric C, O'Connor CM, Lyles KW, Curtis JR. Fractures and mortality in relation to different osteoporosis treatments. Clin Exp Rheumatol 2015; 33:302-309. [PMID: 25068266 PMCID: PMC5733785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 02/04/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES Few studies have assessed the effectiveness of different drugs for osteoporosis (OP). We aimed to determine if fracture and mortality rates vary among patients initiating different OP medications. METHODS We used the Medicare 5% sample to identify new users of intravenous (IV) zoledronic acid (n=1.674), oral bisphosphonates (n=32.626), IV ibandronate (n=492), calcitonin (n=2.606), raloxifene (n=1.950), or parathyroid hormone (n=549). We included beneficiaries who were ≥65 years of age, were continuously enrolled in fee-for-service Medicare and initiated therapy during 2007-2009. Outcomes were hip fracture, clinical vertebral fracture, and all-cause mortality, identified using inpatient and physician diagnosis codes for fracture, procedure codes for fracture repair, and vital status information. Cox regression models compared users of each medication to users of IV zoledronic acid, adjusting for multiple confounders. RESULTS During follow-up (median, 0.8-1.5 years depending on the drug), 787 subjects had hip fractures, 986 had clinical vertebral fractures, and 2.999 died. Positive associations included IV ibandronate with hip fracture (adjusted hazard ratio (HR), 2.37; 95% confidence interval (CI) 1.25-4.51), calcitonin with vertebral fracture (HR=1.59, 95%CI 1.04-2.43), and calcitonin with mortality (HR=1.31; 95%CI 1.02-1.68). Adjusted HRs for other drug-outcome comparisons were not statistically significant. CONCLUSIONS IV ibandronate and calcitonin were associated with higher rates of some types of fracture when compared to IV zolendronic acid. The relatively high mortality associated with use of calcitonin may reflect the poorer health of users of this agent.
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Affiliation(s)
- Huifeng Yun
- Department of Epidemiology, and Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Elizabeth Delzell
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kenneth G Saag
- Department of Epidemiology, and Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Meredith L Kilgore
- Department of Health Care Organization and Policy, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael A Morrisey
- Department of Health Care Organization and Policy, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Paul Muntner
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Robert Matthews
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lingli Guo
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nicole Wright
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Wilson Smith
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | | | - Kenneth W Lyles
- Duke University Medical Center and the Durham VA GRECC, Durham; and The Carolinas Center for Medical Excellence, Cary NC, USA
| | - Jeffrey R Curtis
- Department of Epidemiology, and Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA
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Invernizzi M, Cisari C, Carda S. The potential impact of new effervescent alendronate formulation on compliance and persistence in osteoporosis treatment. Aging Clin Exp Res 2015; 27:107-13. [PMID: 24996788 DOI: 10.1007/s40520-014-0256-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 06/13/2014] [Indexed: 12/12/2022]
Abstract
Osteoporotic fractures are a public health problem and their incidence and subsequent economic and social costs are expected to rise in the next future. Different drugs have been developed to reduce osteoporosis and the risk of osteoporotic fractures, and among them, antiresorptive agents, and in particular oral alendronate, are the most widely utilized. However, one of the most common problems with antiresorptive drugs is poor adherence to treatment, which is associated with a high fracture incidence and with an increase in hospitalization costs. One of the main reasons of poor adherence to these treatments is the occurrence of adverse events, mainly at gastrointestinal (GI) level, including dyspepsia, dysphagia, and esophageal ulcers. In light of these considerations the aim of this paper is to perform a literature review to show the pathophysiologic bases of GI alendronate-induced adverse events and how new bisphosphonate formulations like effervescent alendronate can improve compliance and persistence to treatment and decrease the fracture rate incidence in osteoporotic patients.
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Affiliation(s)
- Marco Invernizzi
- Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont "A. Avogadro", Viale Piazza D'Armi 1, 28100, Novara, Italy,
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Antiresorptive drugs beyond bisphosphonates and selective oestrogen receptor modulators for the management of postmenopausal osteoporosis. Drugs Aging 2015; 31:413-24. [PMID: 24797286 PMCID: PMC4033814 DOI: 10.1007/s40266-014-0179-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Osteoporotic fractures are a major cause of morbidity in the elderly population. Since postmenopausal osteoporosis is related to an increase in osteoclastic activity at the time of menopause, inhibitors of bone resorption have genuinely been considered an adequate strategy for prevention and treatment of osteoporosis. Bisphosphonates and selective oestrogen receptor modulators are widely prescribed to treat osteoporosis. However, other antiresorptive drugs have been developed for the management of osteoporosis, with the objective of providing a substantial reduction in osteoporotic fractures at all skeletal sites, combined with an acceptable long-term skeletal and systemic safety profile. Denosumab, a human monoclonal antibody to receptor activator for nuclear factor kappa B ligand, has shown efficacy against vertebral, nonvertebral and hip fractures. Its administration every 6 months as a subcutaneous formulation might significantly influence compliance and persistence to therapy. Additional results regarding long-term skeletal safety (i.e. osteonecrosis of the jaw and atypical diaphyseal femoral fracture) are needed. Odanacatib, a selective cathepsin K inhibitor, is a promising new approach to the inhibition of osteoclastic resorption, with the potential to uncouple bone formation from bone resorption. Results regarding its anti-fracture efficacy are expected in the coming months.
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Fraser LA, Albaum JM, Tadrous M, Burden AM, Shariff SZ, Cadarette SM. Patterns of use for brand-name versus generic oral bisphosphonate drugs in Ontario over a 13-year period: a descriptive study. CMAJ Open 2015; 3:E91-6. [PMID: 25844376 PMCID: PMC4382038 DOI: 10.9778/cmajo.2014-0090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Bisphosphonates are the first-line therapy for the treatment of osteoporosis. In the province of Ontario, the Ontario Drug Benefit Program funds medications for patients aged 65 years and older. The Ontario Drug Benefit Program has a generic substitution policy that requires lower-cost generic drugs to be dispensed when they are available. However, there is controversy surrounding the efficacy and tolerability of generic bisphosphonates. The objective of this study was to describe patterns in the use of brand-name versus generic formulations when dispensing oral bisphosphonate over a 13-year period. METHODS We identified all osteoporotic preparations for alendronate and risedronate that were dispensed through the Ontario Drug Benefit Program from 2001 to 2014. We stratified our sample into community-dwelling residents and residents in long-term care facilities. The number of prescriptions dispensed per month were plotted to illustrate trends over time. RESULTS We found a rapid switch from brand-name to generic bisphosphonate equivalents immediately after the generic became available on the Ontario Drug Benefit formulary, with generics accounting for > 88% of dispensed drug within 2 months. We also observed a reduction in the number of generic drugs dispensed each time a new brand-name alternative (e.g., monthly risedronate, weekly alendronate plus vitamin D) was introduced to the formulary. The dispensing trends were similar in the community and long-term care settings. INTERPRETATION The Ontario Drug Benefit Program generic substitution policy resulted in rapid uptake of generic oral bisphosphonates among seniors in Ontario. However, there was a switch away from generic medications to new brand-name alternatives whenever they were introduced to the formulary. Therefore, some patients continued to use brand-name bisphosphonate despite the availability of generic options.
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Affiliation(s)
- Lisa-Ann Fraser
- Department of Medicine, University of Western Ontario, London, Ont
| | - Jordan M. Albaum
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ont
| | - Mina Tadrous
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ont
| | - Andrea M. Burden
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ont
| | | | - Suzanne M. Cadarette
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ont
- Institute for Clinical and Evaluative Sciences (ICES), London, Ont
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Denosumab for Elderly Men with Osteoporosis: A Cost-Effectiveness Analysis from the US Payer Perspective. J Osteoporos 2015; 2015:627631. [PMID: 26783494 PMCID: PMC4689973 DOI: 10.1155/2015/627631] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/03/2015] [Indexed: 01/22/2023] Open
Abstract
Purpose. To evaluate the cost-effectiveness of denosumab versus other osteoporotic treatments in older men with osteoporosis from a US payer perspective. Methods. A lifetime cohort Markov model previously developed for postmenopausal osteoporosis (PMO) was used. Men in the model were 78 years old, with a BMD T-score of -2.12 and a vertebral fracture prevalence of 23%. During each 6-month Markov cycle, patients could have experienced a hip, vertebral or nonhip, nonvertebral (NHNV) osteoporotic fracture, remained in a nonfracture state, remained in a postfracture state, or died. Background fracture risks, mortality rates, persistence rates, health utilities, and medical and drug costs were derived from published sources. Previous PMO studies were used for drug efficacy in reducing fracture risk. Lifetime expected costs and quality-adjusted life-years (QALYs) were estimated for denosumab, generic alendronate, risedronate, ibandronate, teriparatide, and zoledronate. Results. Denosumab had an incremental cost-effectiveness ratio (ICER) of $16,888 compared to generic alendronate and dominated all other treatments. Results were most sensitive to changes in costs of denosumab and the relative risk of hip fracture. Conclusion. Despite a higher annual treatment cost compared to other medications, denosumab is cost-effective compared to other osteoporotic treatments in older osteoporotic US men.
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Rizzoli R, Branco J, Brandi ML, Boonen S, Bruyère O, Cacoub P, Cooper C, Diez-Perez A, Duder J, Fielding RA, Harvey NC, Hiligsmann M, Kanis JA, Petermans J, Ringe JD, Tsouderos Y, Weinman J, Reginster JY. Management of osteoporosis of the oldest old. Osteoporos Int 2014; 25:2507-29. [PMID: 25023900 DOI: 10.1007/s00198-014-2755-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 04/16/2014] [Indexed: 12/25/2022]
Abstract
UNLABELLED This consensus article reviews the diagnosis and treatment of osteoporosis in geriatric populations. Specifically, it reviews the risk assessment and intervention thresholds, the impact of nutritional deficiencies, fall prevention strategies, pharmacological treatments and their safety considerations, the risks of sub-optimal treatment adherence and strategies for its improvement. INTRODUCTION This consensus article reviews the therapeutic strategies and management options for the treatment of osteoporosis of the oldest old. This vulnerable segment (persons over 80 years of age) stands to gain substantially from effective anti-osteoporosis treatment, but the under-prescription of these treatments is frequent. METHODS This report is the result of an ESCEO (European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis) expert working group, which explores some of the reasons for this and presents the arguments to counter these beliefs. The risk assessment of older individuals is briefly reviewed along with the differences between some intervention guidelines. The current evidence on the impact of nutritional deficiencies (i.e. calcium, protein and vitamin D) is presented, as are strategies to prevent falls. One possible reason for the under-prescription of pharmacological treatments for osteoporosis in the oldest old is the perception that anti-fracture efficacy requires long-term treatment. However, a review of the data shows convincing anti-fracture efficacy already by 12 months. RESULTS The safety profiles of these pharmacological agents are generally satisfactory in this patient segment provided a few precautions are followed. CONCLUSION These patients should be considered for particular consultation/follow-up procedures in the effort to convince on the benefits of treatment and to allay fears of adverse drug reactions, since poor adherence is a major problem for the success of a strategy for osteoporosis and limits cost-effectiveness.
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Affiliation(s)
- R Rizzoli
- Service of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland,
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Modi A, Sajjan S, Gandhi S. Challenges in implementing and maintaining osteoporosis therapy. Int J Womens Health 2014; 6:759-69. [PMID: 25152632 PMCID: PMC4140231 DOI: 10.2147/ijwh.s53489] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
In the United States, an estimated 19% of older men and 30% of older women are at elevated risk of osteoporotic fracture and considered to be eligible for treatment. The burden of osteoporosis is similar in Europe and is projected to rise worldwide, with aging populations and increasing fracture rates accompanying urbanization. Notwithstanding its high prevalence, osteoporosis is often underdiagnosed and undertreated. Moreover, even when the diagnosis is made and the decision is taken to treat, there are remaining challenges in implementing therapy for osteoporosis. Several patient populations are particularly challenging for clinicians to treat and require further study with regard to osteoporosis therapy. These include the very elderly, who face challenges relating to adherence; men, in whom osteoporosis remains under-recognized; patients with glucocorticoid-induced osteoporosis or renal impairment, who are at increased risk of fracture; patients with preexisting gastrointestinal problems who cannot tolerate existing orally administered osteoporosis therapies; and high-risk patients who show inadequate response to therapy. Moreover, poor adherence and poor persistence with osteoporosis medications are common and result in an increased risk of fracture, higher medical costs, and increased hospitalizations. Once the decision to institute therapy is made, patient education about osteoporosis and fracture risk should be provided. This is particularly important for men, who may not be aware that osteoporosis can be a concern. Secondary prevention programs, including fracture liaison services and bone therapy groups, can help to improve adherence to therapy. Further study is needed to guide the treatment of men, the very elderly, patients with glucocorticoid-induced osteoporosis and renal impairment, high-risk patients not well-controlled despite therapy, and patients with preexisting gastrointestinal conditions. Moreover, therapies are needed that are viewed as effective and safe by both physicians and patients, and as convenient to take by patients.
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Affiliation(s)
- Ankita Modi
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Whitehouse Station, NJ, USA
| | - Shiva Sajjan
- Center for Observational and Real-World Evidence, Merck & Co., Inc., Whitehouse Station, NJ, USA
| | - Sampada Gandhi
- School of Public Health, Rutgers University, Piscataway, NJ, USA
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Medication persistence and the use of generic and brand-name blood pressure-lowering agents. J Hypertens 2014; 32:1146-53; discussion 1153. [DOI: 10.1097/hjh.0000000000000130] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Parthan A, Kruse M, Agodoa I, Silverman S, Orwoll E. Denosumab: a cost-effective alternative for older men with osteoporosis from a Swedish payer perspective. Bone 2014; 59:105-13. [PMID: 24231131 DOI: 10.1016/j.bone.2013.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 10/30/2013] [Accepted: 11/01/2013] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To assess the cost-effectiveness of denosumab versus other treatments in men with osteoporosis who are ≥75years old from a payer perspective in Sweden. METHODS A lifetime cohort Markov model was developed with seven health states: well, hip fracture, vertebral fracture, other osteoporotic fracture, post-hip fracture, post-vertebral fracture, and dead. During each cycle, patients could have a fracture, remain healthy, remain in a post-fracture state or die. Background fracture risks, mortality rates, persistence rates, utilities, medical and drug costs were derived using published sources. Estimates of fracture efficacy were drawn from available studies in post-menopausal osteoporotic (PMO) women as BMD improvements have been shown to be similar across male osteoporosis (MOP) and PMO populations, and a recent clinical trial suggested that the fracture risk reduction from bisphosphonate therapy in men is similar to that seen in women in comparable studies. Lifetime expected costs and quality-adjusted life-years (QALYs) were estimated for denosumab, generic alendronate, generic risedronate, ibandronate, zoledronate, strontium ranelate and teriparatide. On average, patients in the model were 78years old, with bone mineral density T-score at the femoral neck of -2.12. Prevalent vertebral fractures were present in 23% of patients. In the base-case, the model assumed that patients would experience treatment-related effects up to 2years after discontinuation. Costs and QALYs were discounted at 3% annually. Extensive sensitivity analyses were conducted. RESULTS Total lifetime costs for denosumab, alendronate, strontium ranelate, zoledronate, risedronate, ibandronate and teriparatide were €31,004, €33,731, €34,788, €34,796, €34,826, €35,983 and €37,461, respectively. Total QALYs were 5.23, 5.15, 5.15, 5.17, 5.13, 5.12 and 5.22, respectively. Compared to other treatments, denosumab had the lowest costs and highest QALYs. In the one-way sensitivity analyses, when compared to alendronate (next least expensive strategy), the ICER for denosumab was most sensitive to the relative risk of hip fracture on denosumab. The probability of denosumab being cost-effective compared to the other treatments at a threshold of €66,000/QALY was 96.1%. CONCLUSION Denosumab dominated all comparators, including generic bisphosphonates, in the treatment of osteoporosis in men who were ≥75years old in Sweden.
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Affiliation(s)
- A Parthan
- OptumInsight, One Main Street, Cambridge, MA 02142, USA.
| | - M Kruse
- OptumInsight, One Main Street, Cambridge, MA 02142, USA.
| | - I Agodoa
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA.
| | - S Silverman
- Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA.
| | - E Orwoll
- Oregon Health & Science University, 3181 SW Sam Jackson Park Road, L607, Portland, OR 97239, USA.
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Bannwarth B, Kostine M, Poursac N. Are there concerns about generic medicines in rheumatology? Joint Bone Spine 2014; 81:1-3. [DOI: 10.1016/j.jbspin.2013.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2013] [Indexed: 11/29/2022]
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Gallelli L, Palleria C, De Vuono A, Mumoli L, Vasapollo P, Piro B, Russo E. Safety and efficacy of generic drugs with respect to brand formulation. J Pharmacol Pharmacother 2013; 4:S110-4. [PMID: 24347975 PMCID: PMC3853662 DOI: 10.4103/0976-500x.120972] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Generic drugs are equivalent to the brand formulation if they have the same active substance, the same pharmaceutical form and the same therapeutic indications and a similar bioequivalence respect to the reference medicinal product. The use of generic drugs is indicated from many countries in order to reduce medication price. However some points, such as bioequivalence and the role of excipients, may be clarified regarding the clinical efficacy and safety during the switch from brand to generic formulations. In conclusion, the use of generic drugs could be related with an increased days of disease (time to relapse) or might lead to a therapeutic failure; on the other hand, a higher drug concentration might expose patients to an increased risk of dose-dependent side-effects.
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Affiliation(s)
- Luca Gallelli
- Department of Health Science, Regional Center on drug information, Mater Domini University Hospital, Italy and Chair of Pharmacology, School of Medicine, University of Catanzaro, Italy
| | - Caterina Palleria
- Department of Health Science, Regional Center on drug information, Mater Domini University Hospital, Italy and Chair of Pharmacology, School of Medicine, University of Catanzaro, Italy
| | | | - Laura Mumoli
- Department of Health Science, Regional Center on drug information, Mater Domini University Hospital, Italy and Chair of Pharmacology, School of Medicine, University of Catanzaro, Italy
| | | | | | - Emilio Russo
- Department of Health Science, Regional Center on drug information, Mater Domini University Hospital, Italy and Chair of Pharmacology, School of Medicine, University of Catanzaro, Italy
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Parthan A, Kruse M, Yurgin N, Huang J, Viswanathan HN, Taylor D. Cost effectiveness of denosumab versus oral bisphosphonates for postmenopausal osteoporosis in the US. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2013; 11:485-97. [PMID: 23868102 DOI: 10.1007/s40258-013-0047-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND In the US, 26 % of women aged ≥65 years, and over 50 % of women aged ≥85 years are affected with postmenopausal osteoporosis (PMO). Each year, the total direct health care costs are estimated to be $US12-18 billion. OBJECTIVE The cost effectiveness of denosumab versus oral bisphosphonates in postmenopausal osteoporotic women from a US third-party payer perspective was evaluated. METHODS A lifetime cohort Markov model was developed with seven health states: 'well', hip fracture, vertebral fracture, 'other' osteoporotic fracture, post-hip fracture, post-vertebral fracture, and dead. During each cycle, patients could have a fracture, remain healthy, remain in a post-fracture state or die. Relative fracture risk reductions, background fracture risks, mortality rates, treatment-specific persistence rate, utilities, and medical and drug costs were derived using published sources. Expected costs and quality-adjusted life years (QALYs) were estimated for generic alendronate, denosumab, branded risedronate, and branded ibandronate in the overall PMO population and high-risk subgroups: (a) ≥2 of the following risks: >70 years of age, bone mineral density (BMD) T score less than or equal to -3.0, and prevalent vertebral fracture; and (b) ≥75 years of age. Costs and QALYs were discounted at 3 % annually, and all costs were inflated to 2012 US dollars. Sensitivity analyses were conducted by varying parameters e.g., efficacies of interventions, costs, utilities, and the medication persistence ratio. RESULTS In the overall PMO population, total lifetime costs for alendronate, denosumab, risedronate, and ibandronate were $US64,400, $US67,400, $US67,600 and $US69,200, respectively. Total QALYs were 8.2804, 8.3155, 8.2735 and 8.2691, respectively. The incremental cost-effectiveness ratio (ICER) for denosumab versus generic alendronate was $US85,100/QALY. Risedronate and ibandronate were dominated by denosumab. In the high-risk subgroup (a), total costs for alendronate, denosumab, risedronate and ibandronate were $US70,400, $US70,800, $US74,000 and $US76,900, respectively. Total QALYs were 7.2006, 7.2497, 7.1969 and 7.1841, respectively. Denosumab had an ICER of $US7,900/QALY versus generic alendronate and dominated all other strategies. Denosumab dominated all strategies in women aged ≥75 years. Base-case results between denosumab and generic alendronate were most sensitive to the relative risk of hip fracture for both drugs and the cost of denosumab. CONCLUSION In each PMO population examined, denosumab represented good value for money compared with branded bisphosphonates. Furthermore, denosumab was either cost effective or dominant compared with generic alendronate in the high-risk subgroups.
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MESH Headings
- Aged
- Aged, 80 and over
- Alendronate/economics
- Alendronate/therapeutic use
- Antibodies, Monoclonal, Humanized/economics
- Antibodies, Monoclonal, Humanized/therapeutic use
- Bone Density Conservation Agents/economics
- Bone Density Conservation Agents/therapeutic use
- Cost-Benefit Analysis
- Denosumab
- Diphosphonates/economics
- Diphosphonates/therapeutic use
- Drug Costs
- Etidronic Acid/analogs & derivatives
- Etidronic Acid/economics
- Etidronic Acid/therapeutic use
- Female
- Health Care Costs/statistics & numerical data
- Humans
- Insurance, Health, Reimbursement/economics
- Insurance, Health, Reimbursement/statistics & numerical data
- Markov Chains
- Osteoporosis, Postmenopausal/economics
- Osteoporosis, Postmenopausal/prevention & control
- Risedronic Acid
- Sweden
- Thiophenes/economics
- Thiophenes/therapeutic use
- United States
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Brandi ML, Black D. A drinkable formulation of alendronate: potential to increase compliance and decrease upper GI irritation. CLINICAL CASES IN MINERAL AND BONE METABOLISM : THE OFFICIAL JOURNAL OF THE ITALIAN SOCIETY OF OSTEOPOROSIS, MINERAL METABOLISM, AND SKELETAL DISEASES 2013; 10:187-190. [PMID: 24554929 PMCID: PMC3917581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Osteoporosis is a growing public health problem and several drugs have been developed in the past two decades to offer pharmacological solutions both in prevention and in therapy. Alendronate was the first compound registered as an anti-fracture agent and also the most prescribed drug worldwide for osteoporosis. Patient compliance is a major problem with alendronate, with studies demonstrating that 50-60% of patients discontinue treatment within one year. Dysphagia and swallowing difficulties are common especially among elderly people and the perceived potential for upper GI problems is a barrier to good long-term adherence. As non-persistence and non-compliance are linked to increased risk of fractures, efforts have been made to develop forms of alendronate which are more acceptable to patients. Among these, the drinkable formulations have the potential great convenience, simplicity of administration and reduction in gastro-intestinal side effects. In addition these novel soluble products are equivalent in cost to generic alendronate tablets. The approaches to improve adherence to an old and effective medication for osteoporotic patients will be reviewed in this report, with a special focus on the recently marketed product Bonasol 70 mg oral solution.
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Affiliation(s)
- Maria Luisa Brandi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Dennis Black
- Department of Epidemiology and Biostatistics, University of California, San Francisco. San Francisco, California, USA
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Ström O, Jönsson B, Kanis JA. Intervention thresholds for denosumab in the UK using a FRAX®-based cost-effectiveness analysis. Osteoporos Int 2013; 24:1491-502. [PMID: 23224141 DOI: 10.1007/s00198-012-2115-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 06/12/2012] [Indexed: 01/29/2023]
Abstract
UNLABELLED The objective was to undertake a health economic analysis of denosumab for the treatment of osteoporosis in women from the UK, using the FRAX® tool. Denosumab was cost-effective in women with a risk of major osteoporotic fracture meeting or exceeding approximately 20% who are unable to take, comply with or tolerate generic alendronate. INTRODUCTION Denosumab is a novel biologic agent developed for the treatment of osteoporosis, which has been shown to reduce the risk of fractures in a phase-III trial. The objective of the present study was to undertake a health economic analysis of denosumab in women from the UK. Ten-year probabilities of a major osteoporotic fracture at which denosumab is a cost-effective alternative to no treatment, generic alendronate, risedronate and strontium ranelate were estimated. METHODS A previously published Markov model was adapted to incorporate fracture and mortality risk assessments based on absolute fracture probability, as estimated by FRAX®. The model included treatment persistence and residual effect after discontinuation. RESULTS At a willingness-to-pay (WTP) of £30,000 per quality-adjusted life year and a 10-year fracture probability equivalent to a woman with a prior fragility fracture, denosumab was cost-effective compared to no treatment from the age of 70 years. At the same WTP, denosumab was-irrespective of age-cost-effective compared to no treatment at a major osteoporotic fracture probability of approximately 20%. Denosumab was estimated to cost-effectively replace strontium, risedronate and generic alendronate at 10-year probabilities exceeding 11, 19 and 32%, respectively. CONCLUSION FRAX® facilitates the estimation of cost-effectiveness-based intervention thresholds applicable to patients with different combinations of clinical risk factors, which more closely matches the situation in clinical practice. Denosumab is cost-effective in patients with major osteoporotic fracture probabilities meeting or exceeding approximately 20% who are unable to take, comply with or tolerate generic alendronate.
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Affiliation(s)
- O Ström
- Medical Management Centre, Karolinska Institutet, Stockholm, Sweden
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Dunne S, Shannon B, Dunne C, Cullen W. A review of the differences and similarities between generic drugs and their originator counterparts, including economic benefits associated with usage of generic medicines, using Ireland as a case study. BMC Pharmacol Toxicol 2013; 14:1. [PMID: 23289757 PMCID: PMC3579676 DOI: 10.1186/2050-6511-14-1] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 12/24/2012] [Indexed: 12/31/2022] Open
Abstract
Generic medicines are those where patent protection has expired, and which may be produced by manufacturers other than the innovator company. Use of generic medicines has been increasing in recent years, primarily as a cost saving measure in healthcare provision. Generic medicines are typically 20 to 90% cheaper than originator equivalents. Our objective is to provide a high-level description of what generic medicines are and how they differ, at a regulatory and legislative level, from originator medicines. We describe the current and historical regulation of medicines in the world's two main pharmaceutical markets, in addition to the similarities, as well as the differences, between generics and their originator equivalents including the reasons for the cost differences seen between originator and generic medicines. Ireland is currently poised to introduce generic substitution and reference pricing. This article refers to this situation as an exemplar of a national system on the cusp of significant health policy change, and specifically details Ireland's history with usage of generic medicines and how the proposed changes could affect healthcare provision.
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Affiliation(s)
- Suzanne Dunne
- Graduate Entry Medical School, University of Limerick, Limerick, Ireland.
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Kanis JA, McCloskey EV, Johansson H, Cooper C, Rizzoli R, Reginster JY. European guidance for the diagnosis and management of osteoporosis in postmenopausal women. Osteoporos Int 2013; 24:23-57. [PMID: 23079689 PMCID: PMC3587294 DOI: 10.1007/s00198-012-2074-y] [Citation(s) in RCA: 892] [Impact Index Per Article: 81.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/25/2012] [Indexed: 12/12/2022]
Abstract
UNLABELLED Guidance is provided in a European setting on the assessment and treatment of postmenopausal women at risk of 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 2008. This manuscript updates these in a European setting. METHODS Systematic literature reviews. 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 and health economics of 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
- WHO Collaborating Centre, UK University of Sheffield Medical School, Sheffield, UK.
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Gómez Acotto C, Antonelli C, Flynn D, McDaid D, Roldán EJA. Upper gastrointestinal tract transit times of tablet and drinkable solution formulations of alendronate: a bioequivalence and a quantitative, randomized study using video deglutition. Calcif Tissue Int 2012; 91:325-34. [PMID: 22923328 PMCID: PMC3466430 DOI: 10.1007/s00223-012-9639-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 07/12/2012] [Indexed: 11/25/2022]
Abstract
The bioequivalence and upper digestive tract transit time of a drinkable solution of 70 mg/100 mL alendronate was compared to reference tablets. A randomized, single- dose, two-way crossover study of the rate of urinary recovery of alendronate during 36 h (AE((0-36 h))) by HPLC, in 104 healthy young male volunteers, showed that AE((0-36 h)) and the maximum excretion rate (R (max)) were within the accepted range of bioequivalence 81.8-105.7 and 81.7-106.2, respectively. To characterize the oesophageal passage time of the two alendronate formulations, we performed a randomized, controlled study, in 24 healthy men and women (mean 52 years old), who took the formulations standing or lying down, by an X-ray video deglutition system. When taken in the standing position, both formulations had equal mean transit times from mouth to stomach and tablet disintegration but data dispersion was significantly smaller with the liquid form. When taken in lying position, drinkable alendronate had shorter and less variable median transit times compared to the tablets. These results show that the drinkable alendronate formulation is bioequivalent to the tablets and may be advantageous in patients in whom the transit or disintegration of the tablets is impaired.
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Affiliation(s)
- Claudia Gómez Acotto
- Department of Phosphocalcium Metabolism, Maimónides University, Buenos Aires, Argentina.
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Lippuner K, Johansson H, Borgström F, Kanis JA, Rizzoli R. Cost-effective intervention thresholds against osteoporotic fractures based on FRAX® in Switzerland. Osteoporos Int 2012; 23:2579-89. [PMID: 22222755 DOI: 10.1007/s00198-011-1869-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 12/01/2011] [Indexed: 10/14/2022]
Abstract
UNLABELLED FRAX-based cost-effective intervention thresholds in the Swiss setting were determined. Assuming a willingness to pay at 2× Gross Domestic Product per capita, an intervention aimed at reducing fracture risk in women and men with a 10-year probability for a major osteoporotic fracture at or above 15% is cost-effective. INTRODUCTION The fracture risk assessment algorithm FRAX® has been recently calibrated for Switzerland. The aim of the present analysis was to determine FRAX-based fracture probabilities at which intervention becomes cost-effective. METHODS A previously developed and validated state transition Markov cohort model was populated with Swiss epidemiological and cost input parameters. Cost-effective FRAX-based intervention thresholds (cost-effectiveness approach) and the cost-effectiveness of intervention with alendronate (original molecule) in subjects with a FRAX-based fracture risk equivalent to that of a woman with a prior fragility fracture and no other risk factor (translational approach) were calculated based on the Swiss FRAX model and assuming a willingness to pay of 2 times Gross Domestic Product per capita for one Quality-adjusted Life-Year. RESULTS In Swiss women and men aged 50 years and older, drug intervention aimed at decreasing fracture risk was cost-effective with a 10-year probability for a major osteoporotic fracture at or above 13.8% (range 10.8% to 15.0%) and 15.1% (range 9.9% to 19.9%), respectively. Age-dependent variations around these mean values were modest. Using the translational approach, treatment was cost-effective or cost-saving after the age 60 years in women and 55 in men who had previously sustained a fragility fracture. Using the latter approach leads to considerable underuse of the current potential for cost-effective interventions against fractures. CONCLUSIONS Using a FRAX-based intervention threshold of 15% for both women and men should permit cost-effective access to therapy to patients at high fracture probability based on clinical risk factors and thereby contribute to further reduce the growing burden of osteoporotic fractures in Switzerland.
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Affiliation(s)
- K Lippuner
- Osteoporosis Policlinic, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
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Bhattacharya SK, Aspnes GE, Bagley SW, Boehm M, Brosius AD, Buckbinder L, Chang JS, Dibrino J, Eng H, Frederick KS, Griffith DA, Griffor MC, Guimarães CRW, Guzman-Perez A, Han S, Kalgutkar AS, Klug-McLeod J, Garcia-Irizarry C, Li J, Lippa B, Price DA, Southers JA, Walker DP, Wei L, Xiao J, Zawistoski MP, Zhao X. Identification of novel series of pyrazole and indole-urea based DFG-out PYK2 inhibitors. Bioorg Med Chem Lett 2012; 22:7523-9. [PMID: 23153798 DOI: 10.1016/j.bmcl.2012.10.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 10/02/2012] [Accepted: 10/08/2012] [Indexed: 11/26/2022]
Abstract
Previous drug discovery efforts identified classical PYK2 kinase inhibitors such as 2 and 3 that possess selectivity for PYK2 over its intra-family isoform FAK. Efforts to identify more kinome-selective chemical matter that stabilize a DFG-out conformation of the enzyme are described herein. Two sub-series of PYK2 inhibitors, an indole carboxamide-urea and a pyrazole-urea have been identified and found to have different binding interactions with the hinge region of PYK2. These leads proved to be more selective than the original classical inhibitors.
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Affiliation(s)
- Samit K Bhattacharya
- Worldwide Medicinal Chemistry, Pfizer Global Research and Development, 620 Memorial Drive, Cambridge, MA 02139, United States.
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Abstract
Bisphosphonates (BPs) are synthetic analogues of pyrophosphate. They inhibit bone resorption and are therefore widely used in disorders where there are increases or disruptions in bone resorption. This includes postmenopausal osteoporosis, glucocorticoid-induced osteoporosis, Paget's disease of bone, and malignancy-related bone loss. To best understand the clinical application of BPs, an understanding of their pharmacokinetics and pharmacodynamics is important. This review describes the structure, pharmacology and mode of action of BPs, focusing on their role in clinical practice. Controversies and side effects surrounding their use will also be discussed.
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Affiliation(s)
- Geeta Hampson
- Osteoporosis Screening Unit, Guy's Hospital, London, UK ; Department of Chemical Pathology, St Thomas' Hospital, London, UK
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Subsequent entry biologics/biosimilars: a viewpoint from Canada. Clin Rheumatol 2012; 31:1289-92. [DOI: 10.1007/s10067-012-2066-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 08/09/2012] [Indexed: 11/26/2022]
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Lai PSM, Chua SS, Chong YH, Chan SP. The effect of mandatory generic substitution on the safety of alendronate and patients' adherence. Curr Med Res Opin 2012; 28:1347-55. [PMID: 22746354 DOI: 10.1185/03007995.2012.708326] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Generic medicines are often used in public hospitals. However, data on the quality of generic alendronate, its efficacy, side-effects and medication adherence in clinical practice is scarce. Therefore, this study aimed to compare the side-effects and medication adherence of generic (apo-alendronate*) and proprietary alendronate (Fosamax†). RESEARCH DESIGN AND METHODS This prospective study involved two groups of patients: (1) postmenopausal osteoporotic women prescribed once-weekly Fosamax (proprietary group) but were switched to apo-alendronate after 2 years ('switched over' group); and (2) patients initiated with once-weekly apo-alendronate (generic group). Participants were recruited from the Osteoporosis Clinic of a tertiary hospital. Data were collected through interviews. MAIN OUTCOME MEASURES Side-effects and medication adherence. RESULTS A total of 131 participants were recruited: proprietary group = 64 and generic group = 67. An intergroup and a within-group comparison were made. Side-effects were reported by 6 (9.4%), 30 (44.8%) and 12 (18.8%) participants in the proprietary, generic and 'switched over' groups, respectively. Participants who were on generic alendronate were at a significantly higher risk of experiencing side-effects compared to those who were taking proprietary alendronate [odds ratio (OR):7.84 (95% CI: 2.98-20.65), p < 0.001]. However, no significant statistical difference was found between the 'switched over' and the proprietary group [OR: 2.23 (95% CI: 0.78-6.37), p = 0.127]. Four out of 12 (33.3%) patients who experienced side-effects immediately after switching to generic alendronate discontinued generic alendronate due to intolerable gastrointestinal side-effects. There was no difference in medication adherence to generic or proprietary alendronate. CONCLUSIONS Medication adherence to both generic and proprietary alendronate appeared similar although patients who were taking generic alendronate* were significantly more likely to experience side-effects than those on proprietary alendronate. Therefore, the switch from proprietary alendronate to the generic forms should not only consider the cost of the products but must also ensure that the generic and proprietary alendronate are equivalent in all aspects of efficacy and safety.
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Affiliation(s)
- Pauline Siew Mei Lai
- Department of Primary Care Medicine, University of Malaya, Kuala Lumpur, Malaysia.
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Hodges LA, Connolly SM, Winter J, Schmidt T, Stevens HNE, Hayward M, Wilson CG. Modulation of gastric pH by a buffered soluble effervescent formulation: A possible means of improving gastric tolerability of alendronate. Int J Pharm 2012; 432:57-62. [PMID: 22564778 DOI: 10.1016/j.ijpharm.2012.04.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 04/25/2012] [Accepted: 04/26/2012] [Indexed: 11/27/2022]
Abstract
Gastrointestinal side-effects of alendronate (ALN) are believed to be associated with oesophageal lodging of tablets and perhaps reflux of gastric contents with alendronate under strongly acidic pH conditions. This leads to unfavourable posture restrictions when dosing. This clinical study evaluated gastric emptying and gastric pH after administration of Fosamax(®) tablets and a novel effervescent ALN formulation with a high buffering capacity. This novel formulation, EX101, was developed to potentially improve gastric tolerance. Gastric pH was monitored by nasogastric probes. Gastric emptying was determined simultaneously by scintigraphic imaging of (99m)Tc-DTPA labelled formulations. Both formulations tested rapidly cleared the oesophagus and there were no statistically significant or physiologically relevant differences in gastric emptying times. Mean pH at time to 50% gastric emptying of the radiolabel was significantly higher in EX101-treated subjects compared to those treated with Fosamax(®). At time to 90% gastric emptying of the radiolabel, mean pH values were comparable. Mucosal exposure to ALN at pH less than 3 is irritating to gastro-oesophageal tissue. Ingestion of Fosamax(®) resulted in ALN being present in the stomach at a pH below 3 within minutes. EX101 minimised the possibility of exposing the oesophagus (in case of reflux) to acidified ALN.
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Affiliation(s)
- L A Hodges
- Bio-Images Research Ltd., Within Glasgow Royal Infirmary, 84 Castle Street, Glasgow G4 0SF, UK.
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Brandi ML. Evaluation of fracture risk and fracture prevention: an Italian picture. CLINICAL CASES IN MINERAL AND BONE METABOLISM : THE OFFICIAL JOURNAL OF THE ITALIAN SOCIETY OF OSTEOPOROSIS, MINERAL METABOLISM, AND SKELETAL DISEASES 2012; 9:73-75. [PMID: 23087713 PMCID: PMC3476518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Italy has one of the longest life expectancies when compared to other countries in the world, with 20% of the entire population being over 65 years of age and about 6% of these being already 80 years and over. Increased life expectancy is associated with a greater frailty index, typical of the elderly population, with higher prevalence of chronic and degenerative disorders, including fragility fractures. Data have been accumulating about the incidence of fragility fractures in the Italian population, with numbers that are truly alarming for the future decades. In this scenario, the need for the use of antifracture agents becomes strategic in our Country. Therapeutic options currently available for fracture prevention include both antiresorptive and anabolic compounds. Despite the incorporation of this evidence from randomized trials into clinical practice guidelines, these interventions are considerably underutilized. Furthermore, adherence to these therapies is a critical parameter affecting the effectiveness of treatments. Results of institutional databases pose the problem of unsatisfactory outcomes of compliance to antifracture agents prescriptions recorded within regional pharmaceutical databases. These care gaps highlight the finding that additional effort is needed to optimize management of osteoporosis in patients at risk of fragility fractures. Given that there is evidence that appropriate management of osteoporosis decreases fractures, it is felt that the use of appropriate management as the primary outcome is per se relevant. Future efforts should consider treatment appropriateness, treatment sustainability and treatment adherence, as the needed parameters to be applied to programs of osteoporosis care in a community setting.
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Affiliation(s)
- Maria Luisa Brandi
- Address for correspondence: Maria Luisa Brandi, MD, PhD Head, Mineral and Bone Metabolism Unit, University Hospital of Careggi, Viale Pieraccini 6 - 50139 Florence, Italy, Phone: +39 055 2337800 - Fax: +39 055 2337867, E-mail:
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Nayak S, Roberts MS, Greenspan SL. Impact of generic alendronate cost on the cost-effectiveness of osteoporosis screening and treatment. PLoS One 2012; 7:e32879. [PMID: 22427903 PMCID: PMC3302782 DOI: 10.1371/journal.pone.0032879] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Accepted: 02/05/2012] [Indexed: 01/13/2023] Open
Abstract
Introduction Since alendronate became available in generic form in the Unites States in 2008, its price has been decreasing. The objective of this study was to investigate the impact of alendronate cost on the cost-effectiveness of osteoporosis screening and treatment in postmenopausal women. Methods Microsimulation cost-effectiveness model of osteoporosis screening and treatment for U.S. women age 65 and older. We assumed screening initiation at age 65 with central dual-energy x-ray absorptiometry (DXA), and alendronate treatment for individuals with osteoporosis; with a comparator of “no screening” and treatment only after fracture occurrence. We evaluated annual alendronate costs of $20 through $800; outcome measures included fractures; nursing home admission; medication adverse events; death; costs; quality-adjusted life-years (QALYs); and incremental cost-effectiveness ratios (ICERs) in 2010 U.S. dollars per QALY gained. A lifetime time horizon was used, and direct costs were included. Base-case and sensitivity analyses were performed. Results Base-case analysis results showed that at annual alendronate costs of $200 or less, osteoporosis screening followed by treatment was cost-saving, resulting in lower total costs than no screening as well as more QALYs (10.6 additional quality-adjusted life-days). When assuming alendronate costs of $400 through $800, screening and treatment resulted in greater lifetime costs than no screening but was highly cost-effective, with ICERs ranging from $714 per QALY gained through $13,902 per QALY gained. Probabilistic sensitivity analyses revealed that the cost-effectiveness of osteoporosis screening followed by alendronate treatment was robust to joint input parameter estimate variation at a willingness-to-pay threshold of $50,000/QALY at all alendronate costs evaluated. Conclusions Osteoporosis screening followed by alendronate treatment is effective and highly cost-effective for postmenopausal women across a range of alendronate costs, and may be cost-saving at annual alendronate costs of $200 or less.
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Affiliation(s)
- Smita Nayak
- Section of Decision Sciences and Clinical Systems Modeling, Division of General Internal Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
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