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Yeam CT, Chia S, Tan HCC, Kwan YH, Fong W, Seng JJB. A systematic review of factors affecting medication adherence among patients with osteoporosis. Osteoporos Int 2018; 29:2623-2637. [PMID: 30417253 DOI: 10.1007/s00198-018-4759-3] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 10/30/2018] [Indexed: 01/18/2023]
Abstract
The aim of this review was to identify factors that influence patients' adherence to anti-osteoporotic therapy. Factors identified that were associated with poorer medication adherence included polypharmacy, older age, and misconceptions about osteoporosis. Physicians need to be aware of these factors so as to optimize therapeutic outcomes for patients. INTRODUCTION To identify factors that influence patients' adherence to anti-osteoporotic therapy. METHODS A systematic review of literature was performed for articles published up till January 2018 using PubMed®, PsychINFO®, Embase®, and CINAHL®. Peer-reviewed articles which examined factors associated with anti-osteoporotic medication adherence were included. Classes of anti-osteoporotic therapy included bisphosphonates, parathyroid hormone-related analogue, denosumab, selective estrogen receptor modulators, estrogen/progestin therapy, calcitonin, and strontium ranelate. Meta-analyses, case reports/series, and other systematic reviews were excluded. Identified factors were classified using the World Health Organization's five dimensions of medication adherence (condition, patient, therapy, health-system, and socio-economic domains). RESULTS Of 2404 articles reviewed, 124 relevant articles were identified. The prevalence of medication adherence ranged from 12.9 to 95.4%. Twenty-four factors with 139 sub-factors were identified. Bisphosphonates were the most well-studied class of medication (n = 59, 48%). Condition-related factors that were associated with poorer medication adherence included polypharmacy, and history of falls was associated with higher medication adherence. Patient-related factors which were associated with poorer medication adherence included older age and misconceptions about osteoporosis while therapy-related factors included higher dosing frequency and medication side effects. Health system-based factors associated with poorer medication adherence included care under different medical specialties and lack of patient education. Socio-economic-related factors associated with poorer medication adherence included current smoker and lack of medical insurance coverage. CONCLUSION This review identified factors associated with poor medication adherence among osteoporotic patients. To optimize therapeutic outcomes for patients, clinicians need to be aware of the complexity of factors affecting medication adherence.
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Affiliation(s)
- C T Yeam
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - S Chia
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - H C C Tan
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - Y H Kwan
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
- Program in Health Services and Systems Research, Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - W Fong
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
- Department of Rheumatology and Immunology, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - J J B Seng
- Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore.
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Silverman SL, Siris E, Belazi D, Recknor C, Papaioannou A, Brown JP, Gold DT, Lewiecki EM, Quinn G, Balasubramanian A, Yue S, Stolshek B, Kendler DL. Persistence at 24 months with denosumab among postmenopausal women with osteoporosis: results of a prospective cohort study. Arch Osteoporos 2018; 13:85. [PMID: 30088189 PMCID: PMC6096691 DOI: 10.1007/s11657-018-0491-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 06/18/2018] [Indexed: 02/03/2023]
Abstract
UNLABELLED Persistence with prescribed medications for chronic diseases is important; however, persistence with osteoporosis treatments is historically poor. In this prospective cohort study of postmenopausal women treated for osteoporosis in real-world clinical practice settings in the USA and Canada, 24-month persistence with denosumab was 58%. PURPOSE Patients who persist with their prescribed osteoporosis treatment have increased bone mineral density (BMD) and reduced risk of fracture. Twelve-month persistence with denosumab in routine clinical practice is as high as 95%, but there are limited data on longer-term persistence with denosumab in this setting. METHODS This single-arm, prospective, cohort study evaluated 24-month persistence with denosumab administered every 6 months in postmenopausal women receiving treatment for osteoporosis in real-world clinical practice in the USA and Canada. Endpoints and analyses included the percentage of patients who persist with denosumab at 24 months (greater than or equal to four injections with a gap between injections of no more than 6 months plus 8 weeks), the total number of injections received by each patient, changes in BMD in persistent patients, and the incidence of serious adverse events (SAEs) and fractures. RESULTS Among 935 enrolled patients, 24-month persistence was 58% (50% in US patients and 75% in Canadian patients). A majority of patients received at least four injections over the observation period (62% of US patients and 81% of Canadian patients). Among patients who were persistent at 24 months and who had a baseline, 12-month, and 24-month DXA scan, mean BMD increased from baseline to 24 months by 7.8% at the lumbar spine and 2.1% at the femoral neck. SAEs and fractures were reported for 122 (13.0%) patients and 54 (5.8%) patients, respectively. CONCLUSIONS Persistence with denosumab for 24 months yields improvement in BMD among postmenopausal women with osteoporosis treated in routine clinical practice in the USA and Canada.
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Affiliation(s)
- Stuart L. Silverman
- OMC Clinical Research Center, Cedars-Sinai Medical Center and David Geffen School of Medicine UCLA, 8641 Wilshire Blvd, Suite 301, Beverly Hills, CA 90211 USA
| | - E. Siris
- Columbia University Medical Center, 180 Fort Washington Avenue, HP9-964, New York, NY USA
| | - D. Belazi
- AlchemiPharma, 1582 High Grove LN, Malvern, PA USA
| | - C. Recknor
- United Osteoporosis Centers, 2350 Limestone Parkway, Gainesville, GA USA
| | - A. Papaioannou
- Juravinski Research Center, McMaster University, Room 151, 88 Maplewood Avenue, Hamilton, Canada
| | - J. P. Brown
- CHU de Québec (CHUL) Research Center, Laval University, Room TR-83, 2705 Laurier Boulevard, Quebec City, QC Canada
| | - D. T. Gold
- Duke University Medical Center, Box 3003, Durham, NC USA
| | - E. M. Lewiecki
- New Mexico Clinical Research and Osteoporosis Center, University of New Mexico School of Medicine, 300 Oak St. NE, Albuquerque, NM USA
| | - G. Quinn
- Outlier Statistics Ltd, 25 Blacksmith Close, St Michaels Mead, Bishop’s Stortford, UK
| | | | - S. Yue
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA USA
| | - B. Stolshek
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA USA
| | - D. L. Kendler
- Department of Medicine, University of British Columbia, Prohealth, 150-943 W Broadway, Vancouver, BC Canada
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Fahrleitner-Pammer A, Papaioannou N, Gielen E, Feudjo Tepie M, Toffis C, Frieling I, Geusens P, Makras P, Boschitsch E, Callens J, Anastasilakis AD, Niedhart C, Resch H, Kalouche-Khalil L, Hadji P. Factors associated with high 24-month persistence with denosumab: results of a real-world, non-interventional study of women with postmenopausal osteoporosis in Germany, Austria, Greece, and Belgium. Arch Osteoporos 2017; 12:58. [PMID: 28643265 PMCID: PMC5486684 DOI: 10.1007/s11657-017-0351-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
UNLABELLED Persistence with osteoporosis therapy is vital for fracture prevention. This non-interventional study of postmenopausal women receiving denosumab in Germany, Austria, Greece, and Belgium found that persistence with denosumab remains consistently high after 24 months in patients at high risk of fracture. PURPOSE Continued persistence with osteoporosis therapy is vital for fracture prevention. This non-interventional study of clinical practice evaluated medication-taking behavior of postmenopausal women receiving denosumab in Germany, Austria, Greece, and Belgium and factors influencing persistence. METHODS Subcutaneous denosumab (60 mg every 6 months) was assigned according to prescribing information and local guidelines before and independently of enrollment; outcomes were recorded during routine practice for up to 24 months. Persistence was defined as receiving the subsequent injection within 6 months + 8 weeks of the previous injection and adherence as administration of subsequent injections within 6 months ± 4 weeks of the previous injection. Medication coverage ratio (MCR) was calculated as the proportion of time a patient was covered by denosumab. Associations between pre-specified baseline covariates and 24-month persistence were assessed using multivariable logistic regression. RESULTS The 24-month analyses included 1479 women (mean age 66.3-72.5 years) from 140 sites; persistence with denosumab was 75.1-86.0%, adherence 62.9-70.1%, and mean MCR 87.4-92.4%. No covariate had a significant effect on persistence across all four countries. For three countries, a recent fall decreased persistence; patients were generally older with chronic medical conditions. In some countries, other covariates (e.g., older age, comorbidity, immobility, and prescribing reasons) decreased persistence. Adverse drug reactions were reported in 2.3-6.9% patients. CONCLUSIONS Twenty-four-month persistence with denosumab is consistently high among postmenopausal women in Europe and may be influenced by patient characteristics. Further studies are needed to identify determinants of low persistence.
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Affiliation(s)
- A Fahrleitner-Pammer
- Department of Endocrinology and Metabolism, Medical University Graz, Graz, Austria
| | - N Papaioannou
- Medical School, Laboratory for the Research of Musculoskeletal System, KAT Hospital, University of Athens, Athens, Greece
| | - E Gielen
- Department of Geriatrics and Center for Metabolic Bone Diseases, UZ Leuven, Leuven, Belgium
| | | | | | | | - P Geusens
- Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, Netherlands
- University Hasselt, Diepenbeek, Belgium
| | - P Makras
- Department of Endocrinology and Diabetes, 251 Hellenic Airforce and VA General Hospital, Athens, Greece
| | - E Boschitsch
- Ambulatorium KLIMAX, Menopause and Osteoporosis Clinic, Vienna, Austria
| | - J Callens
- Department of Orthopedics, Rheumatology and Physical Medicine and Rehabilitation, AZ Zeno, Knokke, Belgium
| | - A D Anastasilakis
- Department of Endocrinology, 424 General Military Hospital, Thessaloniki, Greece
| | | | - H Resch
- Medical Department II, St Vincent Hospital, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria
- Medical Faculty, Sigmund Freud University, Vienna, Austria
| | | | - P Hadji
- Department of Obstetrics and Gynecology, Krankenhaus Nordwest, Frankfurt, Germany.
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