1
|
Vazquez SR, Yates NY, Beavers CJ, Triller DM, McFarland MM. Differences in quality of anticoagulation care delivery according to ethnoracial group in the United States: A scoping review. J Thromb Thrombolysis 2024:10.1007/s11239-024-02991-2. [PMID: 38733515 DOI: 10.1007/s11239-024-02991-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2024] [Indexed: 05/13/2024]
Abstract
Anticoagulation therapy is standard for conditions like atrial fibrillation, venous thromboembolism, and valvular heart disease, yet it is unclear if there are ethnoracial disparities in its quality and delivery in the United States. For this scoping review, electronic databases were searched for publications between January 1, 2011 - March 30, 2022. Eligible studies included all study designs, any setting within the United States, patients prescribed anticoagulation for any indication, outcomes reported for ≥ 2 distinct ethnoracial groups. The following four research questions were explored: Do ethnoracial differences exist in 1) access to guideline-based anticoagulation therapy, 2) quality of anticoagulation therapy management, 3) clinical outcomes related to anticoagulation care, 4) humanistic/educational outcomes related to anticoagulation therapy. A total of 5374 studies were screened, 570 studies received full-text review, and 96 studies were analyzed. The largest mapped focus was patients' access to guideline-based anticoagulation therapy (88/96 articles, 91.7%). Seventy-eight articles made statistical outcomes comparisons among ethnoracial groups. Across all four research questions, 79 articles demonstrated favorable outcomes for White patients compared to non-White patients, 38 articles showed no difference between White and non-White groups, and 8 favored non-White groups (the total exceeds the 78 articles with statistical outcomes as many articles reported multiple outcomes). Disparities disadvantaging non-White patients were most pronounced in access to guideline-based anticoagulation therapy (43/66 articles analyzed) and quality of anticoagulation management (19/21 articles analyzed). Although treatment guidelines do not differentiate anticoagulant therapy by ethnoracial group, this scoping review found consistently favorable outcomes for White patients over non-White patients in the domains of access to anticoagulation therapy for guideline-based indications and quality of anticoagulation therapy management. No differences among groups were noted in clinical outcomes, and very few studies assessed humanistic or educational outcomes.
Collapse
Affiliation(s)
- Sara R Vazquez
- University of Utah Health Thrombosis Service, 6056 Fashion Square Drive, Suite 1200, Murray, UT, 84107, USA.
| | - Naomi Y Yates
- Kaiser Permanente Clinical Pharmacy Services, 200 Crescent Center Pkwy, Tucker, GA, 30084, USA
| | - Craig J Beavers
- Anticoagulation Forum, Inc, 17 Lincoln Street, Suite 2B, Newton, MA, 02461, USA
- University of Kentucky College of Pharmacy, 789 S Limestone, Lexington, KY, 40508, USA
| | - Darren M Triller
- Anticoagulation Forum, Inc, 17 Lincoln Street, Suite 2B, Newton, MA, 02461, USA
| | - Mary M McFarland
- University of Utah Spencer S. Eccles Health Sciences Library, 10 N 1900 E, Salt Lake City, UT, 84112, USA
| |
Collapse
|
2
|
Reynolds KR, Khosrow-Khavar F, Dave CV. Racial and Ethnic Disparities in Initiation of Direct Oral Anticoagulants Among Medicare Beneficiaries. JAMA Netw Open 2024; 7:e249465. [PMID: 38709533 DOI: 10.1001/jamanetworkopen.2024.9465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/07/2024] Open
Abstract
Importance The influence of race and ethnicity on initiation of direct oral anticoagulants (DOACs) is relatively understudied in Medicare data. Objective To investigate disparities in the initiation of DOACs compared with warfarin by race, ethnicity, and social vulnerability. Design, Setting, and Participants This retrospective cohort study used a 50% sample of Medicare fee-for-service data from January 1, 2010, to December 31, 2019 (mean patient enrollment duration, 7.7 years). Analysis took place between January 2023 and February 2024. A cohort of older adults (aged ≥65 years) with atrial fibrillation who newly initiated warfarin or DOACs (dabigatran, rivaroxaban, apixaban, and edoxaban) was identified. Exposure Patients were classified as non-Hispanic White, non-Hispanic Black, and Hispanic. Main Outcomes and Measures The likelihood of starting use of DOACs compared with warfarin was modeled, adjusting for race, ethnicity, age, sex, county-level social vulnerability, and other clinical factors. Results Among 950 698 anticoagulation initiations, consisting of 680 974 DOAC users and 269 724 warfarin users (mean [SD] age, 78.5 [7.6] years; 52.6% female), 5.2% were Black, 4.3% were Hispanic, and 86.7% were White. During the 10-year study period, DOAC use increased for all demographic groups. After adjustment, compared with White patients, Black patients were 23% less likely (adjusted odds ratio [AOR, 0.77; 95% CI, 0.75-0.79) and Hispanic patients were 13% less likely (AOR, 0.87; 95% CI, 0.85-0.89) to initiate DOAC use. Disparities in DOAC initiation were greatest among Black patients in the earlier years but attenuated during the study period. For instance, in 2010, the OR of Black patients initiating DOACs was 0.54 (95% CI, 0.50-0.57), attenuating linearly over time to 0.69 by 2013 (95% CI, 0.65-0.74) and 0.83 (95% CI, 0.78-0.89) by 2017. By 2019, these differences became nonsignificant (OR, 1.08; 95% CI, 0.99-1.18). Conclusions and Relevance In this cohort study of Medicare patients with atrial fibrillation, Black and Hispanic patients were less likely to initiate DOACs for atrial fibrillation, although these differences diminished over time. Identifying the factors behind these early disparities is crucial for ensuring equitable access to novel therapies as they emerge for Black and Hispanic populations.
Collapse
Affiliation(s)
- Kamika R Reynolds
- Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, New Jersey
| | - Farzin Khosrow-Khavar
- Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, New Jersey
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey
- Rutgers Cancer Institute of New Jersey, New Brunswick
| | - Chintan V Dave
- Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, New Jersey
- Department of Pharmacy Practice and Administration, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey
| |
Collapse
|
3
|
Liaw J, Liaw D, Dave C. Initiation patterns of anticoagulants for atrial fibrillation among older UK adults with and without chronic kidney disease, 2010-2020. Open Heart 2024; 11:e002515. [PMID: 38302138 PMCID: PMC10831461 DOI: 10.1136/openhrt-2023-002515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/09/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND There is a paucity of data on the initiation patterns of anticoagulants among older atrial fibrillation patients with and without chronic kidney disease (CKD). SETTING AND METHODS We used the UK Clinical Practice Research Datalink (2010-2020) to conduct a retrospective cohort study to evaluate anticoagulant initiation patterns for older adults (≥65 years) with CKD (N=18 421) and without CKD (N=41 901), categorised by severity of CKD: stages 3a, 3b and 4, and initiation dose by respective direct oral anticoagulant (DOAC). RESULTS Over the study period, warfarin initiations sharply declined and were replaced by DOACs regardless of CKD status or stage. By 2020, patients with CKD were modestly more likely (8.8% difference) to initiate apixaban compared with those without CKD (58.8% vs 50.0%; p<0.01). Among patients with CKD, those with stages 3a and 3b CKD had higher apixaban initiations compared with stage 4 CKD (56.9% and 64.6% vs 52.9%, respectively; p<0.01). Conversely, patients with stage 4 CKD were over three times more likely to initiate warfarin (14.7%) compared with those with stage 3a (2.6%) and 3b (4.0%) CKD (p<0.01). Throughout the study period, there was a rise in the proportion of patients initiating the higher 10 mg daily dose for apixaban, with an increase of 20.6% (from 64.3% in 2013 to 84.9% in 2020; p value for trend <0.01) among patients without CKD, and 21.8% (53.1% to 74.9%; p<0.01), 24.4% (18.8% to 43.2%; p<0.01) and 18.5% (0.0% to 18.2%; p<0.01) among patients with stages 3a, 3b and 4 CKD, respectively. CONCLUSIONS AND RELEVANCE Initiation of DOACs increased regardless of CKD status and stage, although with a reduced magnitude in severe CKD. Apixaban emerged as the preferred agent, with a secular trend towards the higher initiation dose in all subgroups. These findings illuminate evolving trends and priorities in anticoagulant preferences among patients with and without CKD.
Collapse
Affiliation(s)
- Julia Liaw
- Centers for Pharmacoepidemiology and Treatment Sciences, Rutgers University, New Brunswick, New Jersey, USA
- Rutgers University, New Brunswick, New Jersey, USA
| | - Deborah Liaw
- University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Chintan Dave
- Rutgers University, New Brunswick, New Jersey, USA
- Department of Pharmacy Practice and Administration, Rutgers University, New Brunswick, New Jersey, USA
| |
Collapse
|
4
|
Perkins L, Adams L, Lerner D, Santorelli J, Smith AM, Kobayashi L. Predictors of direct oral anticoagulant concentrations in the trauma population. Trauma Surg Acute Care Open 2024; 9:e001208. [PMID: 38274020 PMCID: PMC10806470 DOI: 10.1136/tsaco-2023-001208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Introduction Direct oral anticoagulant (DOAC) use is becoming more prevalent in patients presenting after trauma. We sought to identify the prevalence and predictors of subtherapeutic and therapeutic DOAC concentrations and hypothesized that increased anti-Xa levels would correlate with increased risk of bleeding and other poor outcomes. Methods A retrospective cohort study of all trauma patients on apixaban or rivaroxaban admitted to a level 1 trauma center between January 2015 and July 2021 was performed. Patients were excluded if they did not have a DOAC-specific anti-Xa level at presentation. Therapeutic levels were defined as an anti-Xa of 50 ng/mL to 250 ng/mL for rivaroxaban and 75 ng/mL to 250 ng/mL for apixaban. Linear regression was used to identify correlations between study variables and anti-Xa level, and binomial logistic regression was used to test the association of anti-Xa level with outcomes. Results There were 364 trauma patients admitted during the study period who were documented to be on apixaban or rivaroxaban. Of these, 245 patients had anti-Xa levels measured at admission. The population was 53% woman, with median age of 78 years, and median Injury Severity Score of 5. In total, 39% of patients had therapeutic and 20% had supratherapeutic anti-Xa levels. Female sex, increased age, decreased height and weight, and lower estimated creatinine clearance were associated with higher anti-Xa levels at admission. There was no correlation between anti-Xa level and the need for transfusion or reversal agent administration, admission diagnosis of intracranial hemorrhage (ICH), progression of ICH, hospital length of stay, or mortality. Conclusions Anti-Xa levels in trauma patients on DOACs vary widely; female patients who are older, smaller, and have decreased kidney function present with higher DOAC-specific anti-Xa levels after trauma. We were unable to detect an association between anti-Xa levels and clinical outcomes. Level of evidence III-Prognostic and Epidemiological.
Collapse
Affiliation(s)
- Louis Perkins
- Department of Surgery, Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego, San Diego, California, USA
| | - Laura Adams
- Department of Surgery, Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego, San Diego, California, USA
| | - Dmitri Lerner
- Department of Pharmacy, University of California San Diego, San Diego, California, USA
| | - Jarrett Santorelli
- Department of Surgery, Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego, San Diego, California, USA
| | - Alan M Smith
- Department of Surgery, Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego, San Diego, California, USA
| | - Leslie Kobayashi
- Department of Surgery, Division of Trauma, Surgical Critical Care, Burns and Acute Care Surgery, University of California San Diego, San Diego, California, USA
| |
Collapse
|
5
|
Truong B, Hornsby L, Fox BI, Chou C, Zheng J, Qian J. Screening for clinically relevant drug-drug interactions between direct oral anticoagulants and antineoplastic agents: a pharmacovigilance approach. J Thromb Thrombolysis 2023; 56:555-567. [PMID: 37563503 DOI: 10.1007/s11239-023-02879-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/29/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Use of direct oral anticoagulants (DOACs) in patients with cancer remains suboptimal due to the concern regarding potential drug-drug interactions (DDIs) with antineoplastic treatments. However, the clinical relevance of these DDIs is unknown. METHODS We conducted a pharmacovigilance study of adverse event (AE) reports from the US Food and Drug Administration Adverse Event Reporting System from 1/1/2004 to 12/31/2021. AE reports containing DOACs and antineoplastic agents with CYP3A4/P-gp inhibitory or inducing activity suggested by published pharmacokinetic studies were included (n = 36,066). The outcomes of interest were bleeding or stroke, identified by MedDRA dictionary version 25.0. We used disproportionality analyses (DPA), logistic regression models (LR), and Multi-item Gamma-Poisson Shrinker (MGPS) (Empirical Bayes Geometric Means (EBGM) and 90% credible intervals (90% CIs)) algorithms to identify the safety signal of DDIs. RESULTS The highest bleeding reporting rates for each drug class were the combination of DOACs with neratinib (39.08%, n = 34), tamoxifen (21.22%, n = 104), irinotecan (20.54%, n = 83), and cyclosporine (19.17%, n = 227). The highest rate of stroke was found for prednisolone (2.43%, n = 113). In the primary analysis, no signal of DDIs by the antineoplastic therapeutic class was detected by MGPS, DPA, and LR approaches. By individual antineoplastic drug, DOACs-neratinib was the only signal detected [EBGM (EB05-EB95) = 2.71 (2.03-3.54)]. CONCLUSION No signal of DDIs between DOACs and antineoplastic agents was detected, except for DOAC-neratinib. Most DDIs between DOACs and antineoplastic agents may not be clinically relevant. The DDIs between DOACs and neratinib should be further examined in future research.
Collapse
Affiliation(s)
- Bang Truong
- Department of Health Outcomes Research and Policy, Auburn University Harrison College of Pharmacy, 4306D Walker Building, Auburn, AL, 36849, USA
| | - Lori Hornsby
- Department of Pharmacy Practice, Auburn University Harrison College of Pharmacy, Auburn, AL, USA
| | - Brent I Fox
- Department of Health Outcomes Research and Policy, Auburn University Harrison College of Pharmacy, 4306D Walker Building, Auburn, AL, 36849, USA
| | - Chiahung Chou
- Department of Health Outcomes Research and Policy, Auburn University Harrison College of Pharmacy, 4306D Walker Building, Auburn, AL, 36849, USA
| | - Jingyi Zheng
- Department of Mathematics and Statistics, Auburn University College of Sciences and Mathematics, Auburn, AL, USA
| | - Jingjing Qian
- Department of Health Outcomes Research and Policy, Auburn University Harrison College of Pharmacy, 4306D Walker Building, Auburn, AL, 36849, USA.
| |
Collapse
|
6
|
Buckley GT, Murphy B, Fleming N, Crowley MP, Harte JV. Removing direct oral factor Xa inhibitor interferences from routine and specialised coagulation assays using a raw activated charcoal product. Clin Chim Acta 2023; 550:117565. [PMID: 37769932 DOI: 10.1016/j.cca.2023.117565] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) are increasingly prescribed for the prevention and treatment of thrombosis. However, DOACs are associated with extensive interference in coagulation assays. Herein, we evaluate raw activated charcoal (AC) as an adsorbent material, to minimise DOAC-associated interferences in routine and specialised coagulation parameters on CS-series analysers (Sysmex, Kobe, Japan). METHODS Commercial human-derived non-anticoagulated plasma materials, with or without increasing concentrations of anticoagulant, were assayed for routine and specialised coagulation parameters before and after treatment with AC. RESULTS Treatment of non-anticoagulated plasma with raw AC had minimal impact on routine and specialised coagulation parameters available on the CS-series; however, clinically relevant prolongations of certain activated partial thromboplastin time (APTT)-based assays were observed after treatment. Furthermore, in apixaban- and rivaroxaban-containing plasma material, AC efficiently adsorbed therapeutic and supratherapeutic DOAC concentrations; and, treatment with raw AC resolved DOAC-associated interferences on all affected routine and specialised coagulation parameters. CONCLUSIONS Overall, raw AC efficiently adsorbed apixaban and rivaroxaban from human-derived plasma, without significantly affecting the majority of underlying routine and specialised coagulation parameters available on CS-series analysers.
Collapse
Affiliation(s)
- Gavin T Buckley
- Department of Haematology, Cork University Hospital, Wilton, Cork, Ireland; EOLAS Research Group, Cork University Hospital, Wilton, Cork, Ireland
| | - Ber Murphy
- Department of Haematology, Cork University Hospital, Wilton, Cork, Ireland
| | - Niamh Fleming
- Department of Haematology, Cork University Hospital, Wilton, Cork, Ireland
| | - Maeve P Crowley
- Department of Haematology, Cork University Hospital, Wilton, Cork, Ireland; EOLAS Research Group, Cork University Hospital, Wilton, Cork, Ireland; Irish Network for Venous Thromboembolism Research (INViTE), Ireland
| | - James V Harte
- Department of Haematology, Cork University Hospital, Wilton, Cork, Ireland; EOLAS Research Group, Cork University Hospital, Wilton, Cork, Ireland.
| |
Collapse
|
7
|
Gavrilova A, Meisters J, Latkovskis G, Urtāne I. Stability of Direct Oral Anticoagulants Concentrations in Blood Samples for Accessibility Expansion of Chromogenic Assays. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1339. [PMID: 37512150 PMCID: PMC10384965 DOI: 10.3390/medicina59071339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Background and Objectives: Direct oral anticoagulants (DOACs) are used for minimising the risk of thromboembolic events. In clinical practice, there is no need to measure DOAC concentration in the routine. Nevertheless, there are cases where such measurements are necessary, as the European Society of Cardiology's guideline recommends. However, determining DOAC levels is not available for everyone due to chromogenic assay availability limitations from sample storage problems, as tests are performed only in a few healthcare settings. This study aimed to assess whether more applicable storage conditions could be used for transportation to provide chromogenic assays for outpatient healthcare and other hospitals' practices. Materials and Methods: Chromogenic assays measuring anti-FXa (for rivaroxaban and edoxaban) and anti-FIIa (for dabigatran) were used. Concentrations were determined immediately after blood collection as baseline value: (1) after the storage of citrated whole blood in refrigerator (+2-8 °C); (2) of citrated plasma in refrigerator (+2-8 °C); and (3) of citrated frozen plasma (-20 °C) on the third and seventh days of storage. Acceptable change limits were considered stable if the deviation did not exceed ±20% of the baseline value. Results: The median (Cl 95%) baseline value of rivaroxaban was 168 (147-236) ng/mL; of dabigatran 139 (99-178) ng/mL; and of edoxaban-174 (135-259) ng/mL. The median deviation from a baseline value stored as citrate whole blood samples (+2-8 °C) was 5.4% and 3.4%; as citrated plasma (+2-8 °C) was 0.4% and -0.6%; and as citrated frozen plasma (-20 °C) was -0.2% and 0.2% on the third and seventh days of storage, respectively. Conclusions: Our data suggest that whole blood samples stored in a refrigerator, as well as citrated plasma samples stored in both the refrigerator and freezer, preserve DOAC concentration stable at +2-8 °C or -20 °C for up to 7 days, and are suitable for transportation, except for low-concentration samples.
Collapse
Affiliation(s)
- Anna Gavrilova
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Riga Stradiņš University, LV-1007 Riga, Latvia
- Department of Pharmaceuticals, Red Cross Medical College of Riga Stradiņš University, LV-1009 Riga, Latvia
| | - Jānis Meisters
- Joint Laboratory, Pauls Stradiņš Clinical University Hospital, LV-1002 Riga, Latvia
| | - Gustavs Latkovskis
- Latvian Center of Cardiology, Pauls Stradiņš Clinical University Hospital, LV-1002 Riga, Latvia
- Institute of Cardiology and Regenerative Medicine, University of Latvia, LV-1004 Riga, Latvia
| | - Inga Urtāne
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Riga Stradiņš University, LV-1007 Riga, Latvia
| |
Collapse
|