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Dehghani M, Sadeghi M, Barzkar F, Maghsoomi Z, Janani L, Motevalian SA, Loke YK, Ismail-Beigi F, Baradaran HR, Khamseh ME. Efficacy and safety of basal insulins in people with type 2 diabetes mellitus: a systematic review and network meta-analysis of randomized clinical trials. Front Endocrinol (Lausanne) 2024; 15:1286827. [PMID: 38586456 PMCID: PMC10997219 DOI: 10.3389/fendo.2024.1286827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/22/2024] [Indexed: 04/09/2024] Open
Abstract
Aim The comparative effectiveness of basal insulins has been examined in several studies. However, current treatment algorithms provide a list of options with no clear differentiation between different basal insulins as the optimal choice for initiation. Methods A comprehensive search of MEDLINE, Embase, Cochrane Library, ISI, and Scopus, and a reference list of retrieved studies and reviews were performed up to November 2023. We identified phase III randomized controlled trials (RCTs) comparing the efficacy and safety of basal insulin regimens. The primary outcomes evaluated were HbA1c reduction, weight change, and hypoglycemic events. The revised Cochrane ROB-2 tool was used to assess the methodological quality of the included studies. A random-effects frequentist network meta-analysis was used to estimate the pooled weighted mean difference (WMD) and odds ratio (OR) with 95% confidence intervals considering the critical assumptions in the networks. The certainty of the evidence and confidence in the rankings was assessed using the GRADE minimally contextualized approach. Results Of 20,817 retrieved studies, 44 RCTs (23,699 participants) were eligible for inclusion in our network meta-analysis. We found no significant difference among various basal insulins (including Neutral Protamine Hagedorn (NPH), ILPS, insulin glargine, detemir, and degludec) in reducing HbA1c. Insulin glargine, 300 U/mL (IGlar-300) was significantly associated with less weight gain (mean difference ranged from 2.9 kg to 4.1 kg) compared to other basal insulins, namely thrice-weekly insulin degludec (IDeg-3TW), insulin degludec, 100 U/mL (IDeg-100), insulin degludec, 200 U/mL (IDeg-200), NPH, and insulin detemir (IDet), but with low to very low certainty regarding most comparisons. IDeg-100, IDeg-200, IDet, and IGlar-300 were associated with significantly lower odds of overall, nocturnal, and severe hypoglycemic events than NPH and insulin lispro protamine (ILPS) (moderate to high certainty evidence). NPH was associated with the highest odds of overall and nocturnal hypoglycemia compared to others. Network meta-analysis models were robust, and findings were consistent in sensitivity analyses. Conclusion The efficacy of various basal insulin regimens is comparable. However, they have different safety profiles. IGlar-300 may be the best choice when weight gain is a concern. In contrast, IDeg-100, IDeg-200, IDet, and IGlar-300 may be preferred when hypoglycemia is the primary concern.
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Affiliation(s)
- Mohsen Dehghani
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Sadeghi
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Epidemiology, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzaneh Barzkar
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Maghsoomi
- Research Center for Prevention of Cardiovascular Disease, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Leila Janani
- Imperial Clinical Trials Unit, Imperial College London, London, United Kingdom
| | - Seyed Abbas Motevalian
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Yoon K. Loke
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Faramarz Ismail-Beigi
- Department of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Hamid Reza Baradaran
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
- Ageing Clinical and Experimental Research Team, Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Mohammad E. Khamseh
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
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Kibirige D, Sekitoleko I, Lumu W, Nyirenda MJ. Type 2 diabetes progression in an adult Ugandan population with new-onset diabetes: an observational prospective study. BMC PRIMARY CARE 2023; 24:214. [PMID: 37858088 PMCID: PMC10588137 DOI: 10.1186/s12875-023-02169-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND The rate of progression of type 2 diabetes following diagnosis varies across individuals and populations. Studies investigating the progression of type 2 diabetes in adult African populations with newly diagnosed diabetes are limited. We aimed to investigate the prevalence and predictors of short-term (one year) diabetes progression in an adult Ugandan population with new-onset type 2 diabetes (type 2 diabetes diagnosed in < 3 months) initiated on oral hypoglycaemic agents (OHA). METHODS Two hundred and seven adult participants with type 2 diabetes diagnosed within the previous three months were followed up for 12 months. We investigated the association of specific demographic, clinical, and metabolic characteristics, and short-term diabetes progression (defined as glycated haemoglobin or HbA1c ≥ 8% on ≥ 2 OHA and/or treatment intensification). RESULTS One hundred sixteen participants (56%) completed the follow-up period. Sixty-four participants (55.2%, 95% CI 45.7-64.4) showed evidence of diabetes progression during the 12-month period of follow-up. An HbA1c ≥ 8% on ≥ 2 OHA and treatment intensification were noted in 44.8% and 29.3% of the participants, respectively. On multivariate analysis, only the female gender (AOR 3.2, 95% CI 1.1-9.2, p = 0.03) was noted to be independently associated with short-term diabetes progression. CONCLUSION Short-term diabetes progression was relatively common in this study population and was independently associated with the female gender. Early intensified diabetes therapy in adult Ugandan female patients with new-onset type 2 diabetes should be emphasised to avert rapid short-term diabetes progression.
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Affiliation(s)
- Davis Kibirige
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda.
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.
- Department of Medicine, Uganda Martyrs Hospital Lubaga, Kampala, Uganda.
| | - Isaac Sekitoleko
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| | - Moffat J Nyirenda
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
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Franco J, Vizcaya D. Availability of secondary healthcare data for conducting pharmacoepidemiology studies in Colombia: A systematic review. Pharmacol Res Perspect 2020; 8:e00661. [PMID: 32965783 PMCID: PMC7510335 DOI: 10.1002/prp2.661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/12/2022] Open
Abstract
Real-world evidence (RWE) is emerging as a fundamental component of the post-marketing evaluation of medicinal products. Even though the focus on RWE studies has increased in Colombia, the availability of secondary data sources to perform this type of research is not well documented. Thus, we aimed at identifying and characterizing secondary data sources available in Colombia. We performed a systematic literature review on PubMed, EMBASE, and VHL using a combination of controlled vocabulary and keywords for the concepts of electronic health records, epidemiologic studies and Colombia. A total of 323 publications were included. These comprised 123 identified secondary data sources including pharmacy dispensing databases, government datasets, disease registries, insurance databases, and electronic heath records, among others. These data sources were mostly used for cross-sectional studies focused on disease epidemiology in a specific population. Almost all databases (95%) contained demographic information, followed by pharmacological treatment (44%) and diagnostic tests (39%). Even though the database owner was identifiable in 94%, access information was only available in 44% of the articles. Only a pharmacy-dispensing database, local cancer registries, and government databases included a description regarding the quality of the information available. The diversity of databases identified shows that Colombia has a high potential to continue enhancing its RWE strategy. Greater efforts are required to improve data quality and accessibility. The linkage between databases will expand data pooling and integration to boost the translational potential of RWE.
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Gilroy CA, Capozzi ME, Varanko AK, Tong J, D'Alessio DA, Campbell JE, Chilkoti A. Sustained release of a GLP-1 and FGF21 dual agonist from an injectable depot protects mice from obesity and hyperglycemia. SCIENCE ADVANCES 2020; 6:eaaz9890. [PMID: 32923621 PMCID: PMC7449677 DOI: 10.1126/sciadv.aaz9890] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 07/08/2020] [Indexed: 05/02/2023]
Abstract
There is great interest in identifying a glucagon-like peptide-1 (GLP-1)-based combination therapy that will more effectively promote weight loss in patients with type 2 diabetes. Fibroblast growth factor 21 (FGF21) is a compelling yet previously unexplored drug candidate to combine with GLP-1 due to its thermogenic and insulin-sensitizing effects. Here, we describe the development of a biologic that fuses GLP-1 to FGF21 with an elastin-like polypeptide linker that acts as a sustained release module with zero-order drug release. We show that once-weekly dual-agonist treatment of diabetic mice results in potent weight-reducing effects and enhanced glycemic control that are not observed with either agonist alone. Furthermore, the dual-agonist formulation has superior efficacy compared to a GLP-1/FGF21 mixture, demonstrating the utility of combining two structurally distinct peptides into one multifunctional molecule. We anticipate that these results will spur further investigation into GLP-1/FGF21 multiagonism for the treatment of metabolic disease.
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Affiliation(s)
- C. A. Gilroy
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720, USA
| | - M. E. Capozzi
- Duke Molecular Physiology Institute, Duke University, Durham, NC 27701, USA
| | - A. K. Varanko
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - J. Tong
- Duke Molecular Physiology Institute, Duke University, Durham, NC 27701, USA
- Department of Medicine, Duke University, Durham, NC 27701, USA
| | - D. A. D'Alessio
- Duke Molecular Physiology Institute, Duke University, Durham, NC 27701, USA
- Department of Medicine, Duke University, Durham, NC 27701, USA
| | - J. E. Campbell
- Duke Molecular Physiology Institute, Duke University, Durham, NC 27701, USA
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27701, USA
| | - A. Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
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Machado-Alba JE, Machado-Duque ME, Gaviria-Mendoza A. Time to modification of antidiabetic therapy in patients over the age of 65 years with newly diagnosed diabetes mellitus. Diabetes Res Clin Pract 2020; 162:108090. [PMID: 32088311 DOI: 10.1016/j.diabres.2020.108090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/19/2022]
Abstract
AIMS To determine the time elapsed from when a patient ≥ 65 years old is diagnosed with type 2 diabetes mellitus (T2DM) and begins antidiabetic treatment until a change in treatment is required as well as the factors associated with the change. METHODS A retrospective study was conducted on patients 65 years or older with a first-time diagnosis of T2DM, and these patients were followed for 60 months until an addition or change was made to their antidiabetic drug regimen. Kaplan-Meier survival analysis was performed to determine the time elapsed until such a modification occurred. RESULTS We identified 13,573 patients with a mean age of 76.8 ± 7.7 years; 59.3% were women. A total of 9144 (67.4%) patients began treatment with a single antidiabetic drug, 4146 (30.5%) began with two, and 282 (2.1%) began with three, especially metformin (n = 10858, 80.0%), sulfonylureas (n = 4525, 33.3%), and insulins (n = 2334, 17.2%). A total of 52.4% (n = 7106) of the patients underwent treatment modification (addition, 39.3% and change, 13.1%). Only 11.2% (n = 600) of the additions corresponded to new antidiabetic drugs (GLP-1 receptor agonists, SGLT2 inhibitors, DPP4 inhibitors). The mean time to modification was 39.1 ± 23.4 months, and the modification occurred earlier in those who started with various antidiabetic agents (33.2 vs. 42.6 months; p < 0.001), men (38.3 vs. 40.4 months; p < 0.001), and those who took glibenclamide vs. metformin (31.9 vs. 44.6 months, p < 0.001). CONCLUSIONS Most elderly adults who were diagnosed with T2DM after 65 years of age were treated with the appropriate medications. Therapy was modified for more than half of the patients, The addition of new antidiabetic drugs was infrequent.
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Affiliation(s)
- Jorge Enrique Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Calle 105 No. 14-140, Zip Code: 660003, Pereira, Risaralda, Colombia.
| | - Manuel Enrique Machado-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Calle 105 No. 14-140, Zip Code: 660003, Pereira, Risaralda, Colombia; Grupo de Investigación Biomedicina, Fundación Universitaria Autónoma de las Américas, Ave Las Américas # 98-56, Pereira, Colombia
| | - Andrés Gaviria-Mendoza
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Calle 105 No. 14-140, Zip Code: 660003, Pereira, Risaralda, Colombia; Grupo de Investigación Biomedicina, Fundación Universitaria Autónoma de las Américas, Ave Las Américas # 98-56, Pereira, Colombia
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Thakarakkattil Narayanan Nair A, Donnelly LA, Dawed AY, Gan S, Anjana RM, Viswanathan M, Palmer CNA, Pearson ER. The impact of phenotype, ethnicity and genotype on progression of type 2 diabetes mellitus. Endocrinol Diabetes Metab 2020; 3:e00108. [PMID: 32318630 PMCID: PMC7170456 DOI: 10.1002/edm2.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/07/2019] [Indexed: 12/12/2022] Open
Abstract
AIM To conduct a comprehensive review of studies of glycaemic deterioration in type 2 diabetes and identify the major factors influencing progression. METHODS We conducted a systematic literature search with terms linked to type 2 diabetes progression. All the included studies were summarized based upon the factors associated with diabetes progression and how the diabetes progression was defined. RESULTS Our search yielded 2785 articles; based on title, abstract and full-text review, we included 61 studies in the review. We identified seven criteria for diabetes progression: 'Initiation of insulin', 'Initiation of oral antidiabetic drug', 'treatment intensification', 'antidiabetic therapy failure', 'glycaemic deterioration', 'decline in beta-cell function' and 'change in insulin dose'. The determinants of diabetes progression were grouped into phenotypic, ethnicity and genotypic factors. Younger age, poorer glycaemia and higher body mass index at diabetes diagnosis were the main phenotypic factors associated with rapid progression. The effect of genotypic factors on progression was assessed using polygenic risk scores (PRS); a PRS constructed from the genetic variants linked to insulin resistance was associated with rapid glycaemic deterioration. The evidence of impact of ethnicity on progression was inconclusive due to the small number of multi-ethnic studies. CONCLUSION We have identified the major determinants of diabetes progression-younger age, higher BMI, higher HbA1c and genetic insulin resistance. The impact of ethnicity is uncertain; there is a clear need for more large-scale studies of diabetes progression in different ethnic groups.
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Affiliation(s)
| | - Louise A. Donnelly
- Population Health & GenomicsSchool of MedicineUniversity of DundeeDundeeUK
| | - Adem Y. Dawed
- Population Health & GenomicsSchool of MedicineUniversity of DundeeDundeeUK
| | - Sushrima Gan
- Population Health & GenomicsSchool of MedicineUniversity of DundeeDundeeUK
| | | | | | - Colin N. A. Palmer
- Population Health & GenomicsSchool of MedicineUniversity of DundeeDundeeUK
| | - Ewan R. Pearson
- Population Health & GenomicsSchool of MedicineUniversity of DundeeDundeeUK
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Alexopoulos AS, Buse JB. Initial injectable therapy in type 2 diabetes: Key considerations when choosing between glucagon-like peptide 1 receptor agonists and insulin. Metabolism 2019; 98:104-111. [PMID: 31255662 PMCID: PMC6690751 DOI: 10.1016/j.metabol.2019.06.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 12/24/2022]
Abstract
Managing type 2 diabetes is complex and necessitates careful consideration of patient factors such as engagement in self-care, comorbidities and costs. Since type 2 diabetes is a progressive disease, many patients will require injectable agents, usually insulin. Recent ADA-EASD guidelines recommend glucagon-like peptide 1 receptor agonists (GLP-1 RAs) as first injectable therapy in most cases. The basis for this recommendation is the similar glycemic efficacy of GLP-1 RAs and insulin, but with GLP-1 RAs promoting weight loss instead of weight gain, at lower hypoglycemia risk, and with cardiovascular benefits in patients with pre-existing cardiovascular disease. GLP-1 RAs also reduce burden of glucose self-monitoring. However, tolerability and costs are important considerations, and notably, rates of drug discontinuation are often higher for GLP-1 RAs than basal insulin. To minimize risk of gastrointestinal symptoms patients should be started on lowest doses of GLP-1 RAs and up-titrated slowly. Overall healthcare costs may be lower with GLP-1 RAs compared to insulin. Though patient-level costs may still be prohibitive, GLP-1 RAs can replace 50-80 units of insulin daily and reduce costs associated with glucose self-monitoring. Decisions regarding initiating injectable therapy should be individualized. This review provides a framework to guide decision-making in the real-world setting.
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Affiliation(s)
| | - John B Buse
- University of North Carolina, Chapel Hill, NC, United States
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Basu S, Yudkin JS, Kehlenbrink S, Davies JI, Wild SH, Lipska KJ, Sussman JB, Beran D. Estimation of global insulin use for type 2 diabetes, 2018-30: a microsimulation analysis. Lancet Diabetes Endocrinol 2019; 7:25-33. [PMID: 30470520 DOI: 10.1016/s2213-8587(18)30303-6] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/08/2018] [Accepted: 10/10/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND The amount of insulin needed to effectively treat type 2 diabetes worldwide is unknown. It also remains unclear how alternative treatment algorithms would affect insulin use and disability-adjusted life-years (DALYs) averted by insulin use, given that current access to insulin (availability and affordability) in many areas is low. The aim of this study was to compare alternative projections for and consequences of insulin use worldwide under varying treatment algorithms and degrees of insulin access. METHODS We developed a microsimulation of type 2 diabetes burden from 2018 to 2030 across 221 countries using data from the International Diabetes Federation for prevalence projections and from 14 cohort studies representing more than 60% of the global type 2 diabetes population for HbA1c, treatment, and bodyweight data. We estimated the number of people with type 2 diabetes expected to use insulin, international units (IU) required, and DALYs averted per year under alternative treatment algorithms targeting HbA1c from 6·5% to 8%, lower microvascular risk, or higher HbA1c for those aged 75 years and older. FINDINGS The number of people with type 2 diabetes worldwide was estimated to increase from 405·6 million (95% CI 315·3 million-533·7 million) in 2018 to 510·8 million (395·9 million-674·3 million) in 2030. On this basis, insulin use is estimated to increase from 516·1 million 1000 IU vials (95% CI 409·0 million-658·6 million) per year in 2018 to 633·7 million (500·5 million-806·7 million) per year in 2030. Without improved insulin access, 7·4% (95% CI 5·8-9·4) of people with type 2 diabetes in 2030 would use insulin, increasing to 15·5% (12·0-20·3) if insulin were widely accessible and prescribed to achieve an HbA1c of 7% (53 mmol/mol) or lower. If HbA1c of 7% or lower was universally achieved, insulin would avert 331 101 DALYs per year by 2030 (95% CI 256 601-437 053). DALYs averted would increase by 14·9% with access to newer oral antihyperglycaemic drugs. DALYs averted would increase by 44·2% if an HbA1c of 8% (64 mmol/mol) were used as a target among people aged 75 years and older because of reduced hypoglycaemia. INTERPRETATION The insulin required to treat type 2 diabetes is expected to increase by more than 20% from 2018 to 2030. More DALYs might be averted if HbA1c targets are higher for older adults. FUNDING The Leona M and Harry B Helmsley Charitable Trust.
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Affiliation(s)
- Sanjay Basu
- Center for Primary Care and Outcomes Research and Center for Population Health Sciences, Departments of Medicine and of Health Research and Policy, Stanford University, Palo Alto, CA, USA; Center for Primary Care, Harvard Medical School, Boston, MA, USA.
| | - John S Yudkin
- Institute of Cardiovascular Science, Division of Medicine, University College London, London, UK
| | - Sylvia Kehlenbrink
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Justine I Davies
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Sarah H Wild
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Kasia J Lipska
- Department of Internal Medicine, Section of Endocrinology, Yale School of Medicine, New Haven, CT, USA
| | - Jeremy B Sussman
- Division of General Medicine, University of Michigan, Ann Arbor, MI, USA; Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - David Beran
- Division of Tropical and Humanitarian Medicine, University of Geneva and Geneva University Hospitals, Geneva, Switzerland
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Predictors of Insulin Initiation in Patients with Type 2 Diabetes: An Analysis of the Look AHEAD Randomized Trial. J Gen Intern Med 2018; 33:839-846. [PMID: 29352421 PMCID: PMC5975136 DOI: 10.1007/s11606-017-4282-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/16/2017] [Accepted: 12/24/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND The decision to initiate insulin in patients with type 2 diabetes is a challenging escalation of care that requires an individualized approach. However, the sociodemographic and clinical factors affecting insulin initiation are not well understood. OBJECTIVE We sought to identify patient factors that were independent predictors of insulin initiation among participants in the Look AHEAD (Action for Health in Diabetes) clinical trial. DESIGN Retrospective analysis of a randomized clinical trial. PARTICIPANTS Beginning in 2001, Look AHEAD enrolled ambulatory U.S. adults with type 2 diabetes who were overweight or obese and had a primary healthcare provider. Participants were randomized (1:1) to an intensive lifestyle intervention, or diabetes support and education. This study examined 3913 participants across the two trial arms who were not using insulin at baseline. MAIN MEASURES We used Cox proportional hazards models to estimate the association between participant characteristics and time to insulin initiation. We performed time-varying adjustment for HbA1c measured eight times over the 10-year study period, as well as for multiple clinical and socioeconomic factors. KEY RESULTS A total of 1087 participants (27.8%) initiated insulin during a median follow-up of 8.0 years. Age was inversely associated with insulin initiation (adjusted hazard ratio [aHR] 0.88 per 10 years, P = 0.025). The risk of insulin initiation was greater with a higher number of diabetes complications (P < 0.001 for trend); chronic kidney disease and cardiovascular disease were independently associated with insulin initiation. There was a lower risk of insulin initiation in black (aHR 0.77, P = 0.008) and Hispanic participants (aHR 0.66, P < 0.001) relative to white participants. Socioeconomic factors were not associated with insulin initiation. CONCLUSIONS Patient age, race/ethnicity, and diabetes complications may influence insulin initiation in type 2 diabetes, independent of glycemic control. Future work is needed to understand the drivers of racial differences in antihyperglycemic treatment, and to identify patients who benefit most from insulin.
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Gaviria-Mendoza A, Sánchez-Duque JA, Medina-Morales DA, Machado-Alba JE. Prescription patterns and costs of antidiabetic medications in a large group of patients. Prim Care Diabetes 2018; 12:184-191. [PMID: 29196125 DOI: 10.1016/j.pcd.2017.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 11/01/2017] [Accepted: 11/10/2017] [Indexed: 12/26/2022]
Abstract
AIMS To determine the prescription patterns of antidiabetic medications and the variables associated with their use in a Colombian population. METHODS A cross-sectional study using a systematized database of approximately 3.5 million affiliates of the Colombian Health System. Patients of both genders and all ages treated uninterruptedly with antidiabetic medications for three months (June-August 2015) were included. A database was designed that included sociodemographic, pharmacological, comedication, and cost variables. RESULTS A total of 47,532 patients were identified; the mean age was 65.5 years, and 56.3% were women. Among the patients, 56.2% (n=26,691) received medication as monotherapy. The most prescribed medications were metformin, 81.3% (n=38,664), insulins, 33.3% (n=15,848), and sulfonylureas, 21.8% (n=10,370). Among the patients, 92.8% received comedications, including antihypertensives (79.7%), hypolipemiants (65.5%), antiplatelet drugs (56.3%), analgesics (33.9%), antiulcerants (33.1%), and thyroid hormone (17.3%). The cost per 1000 inhabitants/day was $1.21 USD for metformin, $3.89 USD for insulins, and $0.02 USD for glibenclamide. CONCLUSIONS Generally, rational prescription habits predominated, however in some cases an overuse of comedications (such as antiulcer drugs) and a large group of patients with high cost formulations were observed. Subsequent effectiveness and cost-benefit analyzes are required.
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Affiliation(s)
- Andrés Gaviria-Mendoza
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Pereira, Colombia
| | - Jorge Andrés Sánchez-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Pereira, Colombia
| | - Diego Alejandro Medina-Morales
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Pereira, Colombia
| | - Jorge Enrique Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A., Pereira, Colombia.
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Kwon CS, Seoane-Vazquez E, Rodriguez-Monguio R. Cost-effectiveness analysis of metformin+dipeptidyl peptidase-4 inhibitors compared to metformin+sulfonylureas for treatment of type 2 diabetes. BMC Health Serv Res 2018; 18:78. [PMID: 29391064 PMCID: PMC5796582 DOI: 10.1186/s12913-018-2860-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/18/2018] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Patients with type 2 diabetes (T2D) typically use several drug treatments during their lifetime. There is a debate about the best second-line therapy after metformin monotherapy failure due to the increasing number of available antidiabetic drugs and the lack of comparative clinical trials of secondary treatment regimens. While prior research compared the cost-effectiveness of two alternative drugs, the literature assessing T2D treatment pathways is scarce. The purpose of this study was to evaluate the long-term cost-effectiveness of dipeptidyl peptidase-4 inhibitors (DPP-4i) compared to sulfonylureas (SU) as second-line therapy in combination with metformin in patients with T2D. METHODS A Markov model was developed with four health states, 1 year cycle, and a 25-year time horizon. Clinical and cost data were collected from previous studies and other readily available secondary data sources. The incremental cost-effectiveness ratio (ICER) was estimated from the US third party payer perspective. Both, costs and outcomes, were discounted at a 3% annual discount rate. One way and probabilistic sensitivity analyses were performed to evaluate the impact of uncertainty on the base-case results. RESULTS The discounted incremental cost of metformin+DPP-4i compared to metformin+SU was $11,849 and the incremental life-years gained were 0.61, resulting in an ICER of $19,420 per life-year gained for patients in the metformin+DPP-4i treatment pathway. The ICER estimated in the probabilistic sensitivity analysis was $19,980 per life-year gained. Sensitivity analyses showed that the results of the study were not sensitive to changes in the parameters used in base-case. CONCLUSIONS The metformin+DPP-4i treatment pathway was cost-effective compared to metformin+SU as a long-term second-line therapy in the treatment of T2D from the US health care payer perspective. Study findings have the potential to provide clinicians and third party payers valuable evidence for the prescription and utilization of cost-effective second-line therapy after metformin monotherapy failure in the treatment of T2D.
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Affiliation(s)
- Christina S Kwon
- International Center for Pharmaceutical Economics & Policy, MCPHS University, 179 Longwood Ave, Boston, MA, 02115-5804, USA
| | - Enrique Seoane-Vazquez
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus RK 94-271, 9401 Jeronimo Road, Irvine, CA, 92618-1908, USA
| | - Rosa Rodriguez-Monguio
- Medication Outcomes Center, School of Pharmacy, University of California San Francisco, 533 Parnassus Avenue, San Francisco, CA, 94143-0622, USA.
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12
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Torres DR, Portilla A, Machado-Duque ME, Machado-Alba JE. Trends in the use and cost of human and analogue insulins in a Colombian population, 2011-2015. Public Health 2017; 153:64-69. [PMID: 28950114 DOI: 10.1016/j.puhe.2017.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/19/2017] [Accepted: 08/21/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Diabetes mellitus is a common disease among the general population and imposes considerable costs on health care systems. Insulin is used to treat type 1 diabetes mellitus and as an adjuvant to oral agents in advanced stages of type 2 diabetes mellitus. The objective was to describe the trends in use and cost of human and analogue insulins for Colombian patients. STUDY DESIGN Descriptive retrospective analysis of prescriptions of human and analogue insulins on a monthly basis for the period from July 1, 2011 to February 2, 2015. METHODS Information was collected for the database population of two insurance companies. Frequencies and proportions were calculated; estimated economic impact was expressed as net cost and cost per thousand inhabitants per day. RESULTS During the observation period, there was continuous growth in use of insulin, mainly in analogue forms (34.0% growth). At the start of the study, 10.4% of subjects were using an analogue insulin; this figure was 62.6% at the end of the study. In 2012, the average cost per 1000 inhabitants/day was US$1.7 for analogue and US$0.8 for human insulins. At the end of the observation period these costs had risen to US$9.2 for analogue (441.1% increase) and fallen to US$0.5 for human insulin (58.3% decrease). CONCLUSIONS There has been an increase in the unit cost and frequency of use of insulin analogues for anti-diabetic therapy in Colombian patients. Moreover, there is controversy over whether insulin analogues are a more cost-effective treatment than human insulins for the general diabetic population.
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Affiliation(s)
- D R Torres
- Gerencia de Farmacoepidemiología Audifarma S.A, Colombia
| | - A Portilla
- Gerencia de Farmacoepidemiología Audifarma S.A, Colombia
| | - M E Machado-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia
| | - J E Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia.
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13
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Machado-Alba JE, Medina-Morales DA, Echeverri-Cataño LF. Comparison of medication adherence in diabetes mellitus patients on human versus analogue insulins. Expert Opin Drug Saf 2016; 16:133-137. [PMID: 28002970 DOI: 10.1080/14740338.2017.1273346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objetive: This study evaluated the results of treatment adherence scales in two cohorts of patients with diabetes mellitus treated either with human or analogue insulins. METHODS A cohort study was conducted in diabetes mellitus patients older than 18 that were being treated with human or analogue insulins. Two instruments were applied to each patient [medication possession ratio, Morisky-Green test] to evaluate treatment adherence. RESULTS A total of 238 patients, were included. The majority (69.4%) of the subjects had human insulin and 30.6% had insulin analogue prescriptions. Out of the total, 163 (68.5%) cases were classified as adherent to therapy, according to the type of insulin, as follows: 69.9% for conventional and 65.3% for analogues; without differences between the groups (CI95%:0.450-1.458). The adherence to treatment was more probable in patients with elementary-secondary education (OR:2.341; CI95%:1.199-4.568) and less probable for those in the age range of 31-45 years (OR:0.427; CI95%:0.187-0.971). CONCLUSIONS The results of this study show that there are no significant statistical differences in adherence when comparing human with analogue insulin therapy. Strategies to improve treatment adherence are particularly important since they improve the clinical results.
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Affiliation(s)
- Jorge Enrique Machado-Alba
- a Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia , Universidad Tecnológica de Pereira-Audifarma S.A ., Pereira , Colombia
| | - Diego Alejandro Medina-Morales
- a Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia , Universidad Tecnológica de Pereira-Audifarma S.A ., Pereira , Colombia
| | - Luis Felipe Echeverri-Cataño
- a Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia , Universidad Tecnológica de Pereira-Audifarma S.A ., Pereira , Colombia
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14
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Soric MM, Moorman JM, Boyle JA, Dengler-Crish CM. Prevalence and Predictors of Metformin Prescribing in Adults with Type 2 Diabetes Mellitus: A National Cross-Sectional Study. Pharmacotherapy 2016; 36:715-22. [PMID: 27208803 DOI: 10.1002/phar.1772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Metformin is the first-line oral type 2 diabetes treatment. Despite an abundance of evidence, metformin is routinely underused. This study evaluated the rates of metformin use in an appropriate outpatient type 2 diabetes population and identified predictors of metformin use. METHODS A national cross-sectional study was conducted using data from the National Ambulatory Medical Care Survey. Office visits involving patients aged 18-79 years with a diagnosis of type 2 diabetes were included, and visits involving patients with a diagnosis of chronic renal failure or heart failure were excluded. The primary outcome was metformin-prescribing rate. Multivariate logistic regression identified variables associated with metformin prescribing. RESULTS A total of 2348 patient visits were eligible for inclusion, representing 88,671,714 office visits nationally. Metformin was continued or initiated in 40.6% of these visits. The strongest independent predictors of metformin prescribing were insulin use (odds ratio [OR] 0.32; 95% confidence interval [CI] 0.21-0.47), presence of four or more chronic conditions (OR 0.58; 95% CI 0.34-0.98), patients with Medicare insurance (OR 0.57; 95% CI 0.39-0.83), visit with a surgical specialist (OR 0.39; 95% CI 0.25-0.61) or a medical specialist (OR 0.59; 95% CI 0.38-0.92), and Hispanic ethnicity (OR 2.03; 95% CI 1.28-3.22). CONCLUSION Metformin-prescribing rates are low, particularly in patients receiving insulin, with Medicare insurance, seen by medical or surgical specialists, or with four or more chronic conditions. The observed low rates of metformin use represent an important opportunity to improve the quality of care for patients with type 2 diabetes.
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Affiliation(s)
- Mate M Soric
- Department of Pharmacy, University Hospitals Geauga Medical Center, Chardon, Ohio.,Department of Pharmacy Practice, Northeast Ohio Medical University College of Pharmacy, Rootstown, Ohio
| | - John M Moorman
- Department of Pharmacy, Akron General Medical Center, Akron, Ohio.,Department of Pharmacy Practice, Northeast Ohio Medical University College of Pharmacy, Rootstown, Ohio
| | - Jaclyn A Boyle
- Department of Pharmacy Practice, Northeast Ohio Medical University College of Pharmacy, Rootstown, Ohio.,Pharmacy Innovations, LLC, Rootstown, Ohio
| | - Christine M Dengler-Crish
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University College of Pharmacy, Rootstown, Ohio.,Department of Anatomy and Neurobiology, Northeast Ohio Medical University College of Medicine, Rootstown, Ohio
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Schrijnders D, Hartog LC, Kleefstra N, Groenier KH, Landman GWD, Bilo HJG. Within-Sulfonylurea-Class Evaluation of Time to Intensification with Insulin (ZODIAC-43). PLoS One 2016; 11:e0157668. [PMID: 27327605 PMCID: PMC4915672 DOI: 10.1371/journal.pone.0157668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 06/02/2016] [Indexed: 11/18/2022] Open
Abstract
Background Previous studies have shown that many within-class differences exist between sulfonylureas (SUs), however, whether differences exist regarding the time it takes between initiating an SU and the need to intensify treatment with insulin is unclear. The aim of this study was investigate the relationships between the three frequently used sulphonylureas, prescribed as dual therapy next to metformin, and the time needed to treatment intensification with either insulin or oral triple therapy in patients with type 2 diabetes mellitus. Methods Zwolle Outpatient Diabetes project Integrating Available Care (ZODIAC) is a prospective observational cohort study set in primary care in the Netherlands. Annually collected data on diabetes medication and clinical variables within ZODIAC are used to evaluate the primary outcome, time to insulin and secondary outcome, time to either insulin or triple oral therapy. For statistical analysis a time-dependent cox proportional hazard model was used. Results 3507 patients were included in the analysis, with a mean age of 61 (SD 11.4) and a median HbA1c of 6.8% [IQR 6.4–7.4] (50.8 mmol/mol [IQR 46.4–57.4]).The hazard ratio (HR) for the primary endpoint was 1.10 (95% CI 0.78–1.54) for metformin/glimepiride and 0.93 (95% CI 0.67–1.30) for metformin/tolbutamide with metformin/gliclazide as reference group. The HR for the secondary outcome was 1.04 (95% CI 0.78–1.40) and 0.85 (95% CI 0.64–1.13), respectively. Conclusion In this large Dutch primary care cohort, new users of neither gliclazide, glimepiride nor tolbutamide as dual therapy with metformin, resulted in differences in the time needed for further treatment intensification.
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Affiliation(s)
- Dennis Schrijnders
- Diabetes Centre, Isala, Zwolle, the Netherlands
- Langerhans Medical Research Group, Zwolle, the Netherlands
- * E-mail:
| | | | - Nanne Kleefstra
- Langerhans Medical Research Group, Zwolle, the Netherlands
- University of Groningen, University Medical Center Groningen, Department of Internal Medicine, Groningen, the Netherlands
| | - Klaas H. Groenier
- Diabetes Centre, Isala, Zwolle, the Netherlands
- University of Groningen, University Medical Center Groningen, Department of General Practice, Groningen, the Netherlands
| | - Gijs W. D. Landman
- Langerhans Medical Research Group, Zwolle, the Netherlands
- Department of Internal Medicine, Gelre Hospital, Apeldoorn, the Netherlands
| | - Henk J. G. Bilo
- Diabetes Centre, Isala, Zwolle, the Netherlands
- University of Groningen, University Medical Center Groningen, Department of Internal Medicine, Groningen, the Netherlands
- Department of Internal Medicine, Isala, Zwolle, the Netherlands
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Annor FB, Masyn KE, Okosun IS, Roblin DW, Goodman M. Psychosocial stress and changes in estimated glomerular filtration rate among adults with diabetes mellitus. Kidney Res Clin Pract 2015; 34:146-53. [PMID: 26484039 PMCID: PMC4608872 DOI: 10.1016/j.krcp.2015.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/17/2015] [Accepted: 07/03/2015] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Psychosocial stress has been hypothesized to impact renal changes, but this hypothesis has not been adequately tested. The aim of this study was to examine the relationship between psychosocial stress and estimated glomerular filtration rate (eGFR) and to examine other predictors of eGFR changes among persons with diabetes mellitus (DM). METHODS Data from a survey conducted in 2005 by a major health maintenance organization located in the southeastern part of the United States, linked to patients' clinical and pharmacy records (n=575) from 2005 to 2008, was used. Study participants were working adults aged 25-59 years, diagnosed with DM but without advanced microvascular or macrovascular complications. eGFR was estimated using the Modification of Diet in Renal Disease equation. A latent psychosocial stress variable was created from five psychosocial stress subscales. Using a growth factor model in a structural equation framework, we estimated the association between psychosocial stress and eGFR while controlling for important covariates. RESULTS The psychosocial stress variable was not directly associated with eGFR in the final model. Factors found to be associated with changes in eGFR were age, race, insulin use, and mean arterial pressure. CONCLUSION Among fairly healthy DM patients, we did not find any evidence of a direct association between psychosocial stress and eGFR changes after controlling for important covariates. Predictors of eGFR change in our population included age, race, insulin use, and mean arterial pressure.
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Affiliation(s)
- Francis B. Annor
- School of Public Health, Georgia State University, Atlanta, GA, USA
| | | | - Ike S. Okosun
- School of Public Health, Georgia State University, Atlanta, GA, USA
| | - Douglas W. Roblin
- School of Public Health, Georgia State University, Atlanta, GA, USA
- Center for Health Research, Kaiser Permanente Georgia, Atlanta, GA, USA
| | - Michael Goodman
- Department of Epidemiology, Emory University, Atlanta, GA, USA
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Machado-Duque ME, Ramírez-Valencia DM, Medina-Morales DA, Machado-Alba JE. Effectiveness and clinical inertia in the management of hypertension in patients in Colombia. ACTA ACUST UNITED AC 2015; 9:878-84. [PMID: 26454799 DOI: 10.1016/j.jash.2015.08.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 08/20/2015] [Accepted: 08/21/2015] [Indexed: 11/18/2022]
Abstract
Determine the effectiveness of treatment and the frequency of clinical inertia in the management of hypertension in Colombian patients. A retrospective study with prospective follow-up of individuals on antihypertensive medication who were treated on medical consultation for 1 year was conducted in 20 Colombian cities. Clinical inertia was considered when no modification of therapy occurred despite not achieving control goals. A total of 355 hypertensive patients were included. From a total of 1142 consultations, therapy was effective in 81.7% of cases. In 18.3% of the cases, the control goal was not achieved, and of these, 81.8% were considered clinical inertia. A logistic regression showed that the use of antidiabetics (odds ratio: 2.31; 95% confidence interval: 1.290-4.167; P = .008) was statistically associated with an increased risk of clinical inertia. With a determination of the frequency of inertia and the high effectiveness of antihypertensive treatment, valuable information can be provided to understand the predictors of clinical inertia.
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Affiliation(s)
- Manuel Enrique Machado-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia
| | - Diana Marcela Ramírez-Valencia
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia
| | - Diego Alejandro Medina-Morales
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia
| | - Jorge Enrique Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Colombia.
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