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Fatima B, Mohan A, Altaie I, Abughosh S. Predictors of adherence to direct oral anticoagulants after cardiovascular or bleeding events in Medicare Advantage Plan enrollees with atrial fibrillation. J Manag Care Spec Pharm 2024; 30:408-419. [PMID: 38701026 PMCID: PMC11068655 DOI: 10.18553/jmcp.2024.30.5.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) are recommended for patients with atrial fibrillation (AF) given their improved safety profile. Suboptimal adherence to DOACs remains a significant concern among individuals with AF. However, the extent of adherence to DOACs following a cardiovascular or bleeding event has not been fully evaluated. OBJECTIVE To evaluate the pattern of adherence trajectories of DOACs after a cardiovascular or bleeding event and to investigate the sociodemographic and clinical predictors associated with each adherence trajectory by using claims-based data. METHODS This retrospective study was conducted among patients with AF prescribed with DOACs (dabigatran/apixaban/rivaroxaban) between July 2016 and December 2017 and who were continuously enrolled in the Texas-based Medicare Advantage Plan. Patients who experienced a cardiovascular or bleeding event while using the DOACs were further included in the analysis. The sample was limited to patients who experienced a clinical event such as a cardiovascular or bleeding event while using the DOACs. The clinical events considered in this study were cardiovascular (stroke, congestive heart failure, myocardial infarction, systemic embolism) and bleeding events. To assess adherence patterns, each patient with a DOAC prescription was followed up for a year after experiencing a clinical event. The monthly adherence to DOACs after these events was evaluated using the proportion of days covered (PDC). A group-based trajectory model incorporated the monthly PDC to classify groups of patients based on their distinct patterns of adherence. Predictors associated with each trajectory were assessed using a multinomial logistic regression model, with the adherent trajectory serving as the reference group in the outcome variable. RESULTS Among the 694 patients with AF who experienced clinical events after the initiation of DOACs, 3 distinct adherence trajectories were identified: intermediate nonadherent (30.50%), adherent (37.7%), and low adherent (31.8%); the mean PDC was 0.47 for the intermediate nonadherent trajectory, 0.93 for the adherent trajectory, and 0.01 for low adherent trajectory. The low-income subsidy was significantly associated with lower adherence trajectories (odds ratio [OR] = 4.81; 95% CI = 3.07-7.51) and with intermediate nonadherent trajectories (OR = 1.57; 95% CI = 1.06-2.34). Also, nonsteroidal anti-inflammatory drug use was significantly associated with lower adherence trajectories (OR = 5.10; 95% CI = 1.95-13.36) and intermediate nonadherent trajectories (OR = 3.17; 95% CI = 1.26-7.93). Other predictors significantly associated with both nonadherent trajectories are type of DOACs (OR = 0.53; 95% CI = 0.35-0.79), presence of coronary artery disease (OR = 1.89; 95% CI = 1.01-3.55), and having 2 or more clinical events (OR = 1.65; 95% CI = 1.09-2.50). CONCLUSIONS Predictors identified provide valuable insights into the suboptimal adherence of DOACs among Medicare Advantage Plan enrollees with AF, which can guide the development of targeted interventions to enhance adherence in this high-risk patient population.
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Satisfaction With Oral Anticoagulants Among Patients With Atrial Fibrillation: A Prospective Observational Study. CJC Open 2021; 3:1347-1356. [PMID: 34901803 PMCID: PMC8640622 DOI: 10.1016/j.cjco.2021.06.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/22/2021] [Indexed: 11/21/2022] Open
Abstract
Background Satisfaction with treatment has been identified as an important contributing factor to adherence with oral anticoagulant (OAC) therapy in patients with atrial fibrillation (AF). We aimed to evaluate the satisfaction level of patients with AF regarding OAC use over time, using validated patient-reported outcome instruments, and to identify associated patient characteristics. Methods Participants were recruited from specialized AF clinics in Canada. Eligible AF patients who were prescribed OACs were followed for up to 2 years. Participants were interviewed via telephone every 3-4 months using a structured survey. The Treatment Satisfaction Questionnaire for Medication (TSQM II) and the Anti-Clot Treatment Scale (ACTS) were used to measure satisfaction over time. Results Among the 306 participants, satisfaction scores on the TSQM II and ACTS instruments were high. Unadjusted analyses showed significantly greater satisfaction with the burden of therapy with direct OACs (DOACs) compared to that with warfarin (small-magnitude effect) and greater satisfaction with the convenience of rivaroxaban, compared with that of all other OACs (moderate-magnitude effect). After adjustment for all other variables, vitamin K antagonist therapy was associated with greater global satisfaction than was DOAC treatment. Satisfaction with benefit and burden as measured by the ACTS scale, and global satisfaction on the TSQM II scale, tended to increase over time. Patient factors that were somewhat consistently associated with greater satisfaction were female sex and younger age. Conclusions Patients with AF were highly satisfied with their therapy, with few differences among OAC classes and individual OACs. Individual patients may or may not be more satisfied with DOAC than VKA therapy, and regardless of the OAC prescribed, the may require significant support to maintain therapy adherence.
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Nagano T, Yasuoka R, Tanaka M, Maruyama M, Nakazawa G, Kurita T. A proposed interval for evaluation of renal function during anticoagulation therapy using direct oral anticoagulants in patients with atrial fibrillation. J Cardiol 2021; 79:283-290. [PMID: 34756768 DOI: 10.1016/j.jjcc.2021.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) have been used to prevent cardiogenic embolism in patients with atrial fibrillation (AF). No evidence has been established for the follow-up renal function evaluation intervals. We hypothesized that a proposed follow-up interval of renal function can be estimated by patient's baseline characteristics including creatinine clearance (CCr). METHODS We conducted a single-center retrospective study at Kindai University Hospital from May 2011 to December 2017. Patients were screened and they were enrolled if baseline CCr of ≥50 mL/min. To provide a periodical synchronization for measurements of CCr in all patients, these were evaluated at four different time points (approximately at 3, 6, 9, and 12 months). Primary endpoint was defined as a CCr value of <50 mL/min during the follow-up period. We analyzed associations between the cumulative risk for renal endpoint and baseline characteristics by the Kaplan-Meier method and the Cox proportional hazards model. RESULTS Renal endpoint was associated with age (95% CI: 0.07 to 0.21, p<0.01), body weight (95% CI: -0.09 to -0.01, p<0.01), CCr (95% CI: -0.18 to -0.07, p<0.01), and CHA2DS2-VASc score (95% CI: 0.14 to 0.63, p<0.01). Combining baseline CCr of <60 mL/min and other risk factors, acceptable intervals for 5% risk levels were 78 days (age ≥75 years old), 100 days (CHA2DS2-VASc score of> 4 points), and 90 days (body weight <60kg), respectively. Under conditions of baseline CCr of <60 mL/min, age ≥75 years old, CHA2DS2-VASc score of> 4 points, or body weight <60 kg, an increased risk of renal endpoints is 4.85, 3.29, 1.24, 2.44 fold, respectively. CONCLUSIONS We propose a risk-stratified follow-up interval for renal evaluation in patients with AF and DOACs therapy according to a combination of baseline CCr and other risk factors.
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Affiliation(s)
- Tomoya Nagano
- Kindai University Hospital Division of Cardiology, Osaka, Japan
| | - Ryobun Yasuoka
- Kindai University Hospital Division of Cardiology, Osaka, Japan
| | - Motohide Tanaka
- Kindai University Hospital Division of Cardiology, Osaka, Japan
| | | | - Gaku Nakazawa
- Kindai University Hospital Division of Cardiology, Osaka, Japan
| | - Takashi Kurita
- Kindai University Hospital Division of Cardiology, Osaka, Japan.
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Gutiérrez-Zúñiga R, Rigual R, Torres-Iglesias G, Sánchez-Velasco S, Alonso de Leciñana M, Masjuan J, Álvarez Velasco R, Navas I, Izquierdo-Esteban L, Fernández-Ferro J, Rodríguez-Pardo J, Ruiz-Ares G, Zapata-Wainberg G, Fuentes B, Díez-Tejedor E. Long-Term Anticoagulation in Secondary Ischemic Stroke Prevention: The Prospective Multicenter RESTAIC Registry. Front Neurol 2020; 11:575634. [PMID: 33193025 PMCID: PMC7641639 DOI: 10.3389/fneur.2020.575634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/28/2020] [Indexed: 11/13/2022] Open
Abstract
Background and Objective: Oral anticoagulation (OAC) for secondary stroke prevention is recommended in atrial fibrillation (AF) and other sources of cardioembolic stroke. Our objectives were to explore the differences in ischemic and hemorrhagic events when using OAC for secondary stroke prevention according to the type of anticoagulant treatment and to analyze the number and reasons for OAC switches during long-term follow-up. Methods: Ischemic stroke (IS) patients who were discharged on OAC for secondary stroke prevention from January 2014 to October 2017 were recruited in a prospective, multicenter, hospital-based registry. Follow-up at 3 months was scheduled at the outpatient clinic with subsequent annual phone interviews for 3 years. Patients were classified into three study groups according to OAC at discharge: Vitamin K antagonist (VKA), Factor Xa inhibitor (FXa), or direct thrombin inhibitor (DTI). We compared stroke recurrences, intracranial hemorrhage, major bleeding, and all-cause mortality during the follow-up. We recorded any switches in OAC and the main reasons for the change. Results: A total of 241 patients were included. An anticoagulant was indicated in the presence of a source of cardioembolic stroke in 240 patients (99.6%) and lupus plus antiphospholipid syndrome in one patient. Up to 86 patients (35.6%) were on OAC before the index stroke; in 71 (82.5%) of them, this was VKA. At hospital discharge, 105 were treated with FXa (43.8%), 96 with VKA (39.6%), and 40 with DTI (16.6%). The cumulative incidences at 3 years were 17% for stroke recurrence, 1.6% for intracranial hemorrhage, 4.9% for major hemorrhage, and 22.8% for all-cause mortality, with no differences among the OAC groups in any outcomes. During the follow-up, 40 OAC switches were recorded (63% of them to FXa), mostly due to stroke recurrence. Conclusion: Long-term OAC in secondary stroke prevention is associated with a lower frequency of bleeding complications than stroke recurrences. No differences between anticoagulant drugs were found in any of the analyzed outcomes. The main cause for OAC switch during follow-up was stroke recurrence.
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Affiliation(s)
- Raquel Gutiérrez-Zúñiga
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ricardo Rigual
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Gabriel Torres-Iglesias
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Sara Sánchez-Velasco
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - María Alonso de Leciñana
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Jaime Masjuan
- Departamento de Medicina, Facultad de Medicina, Servicio de Neurología, H Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Rodrigo Álvarez Velasco
- Departamento de Medicina, Facultad de Medicina, Servicio de Neurología, H Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - Inmaculada Navas
- Neurology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | | | - José Fernández-Ferro
- Neurology Department and Stroke Unit, Hospital Universitario Rey Juan Carlos, Madrid, Spain
| | - Jorge Rodríguez-Pardo
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Gerardo Ruiz-Ares
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Blanca Fuentes
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
| | - Exuperio Díez-Tejedor
- Neurology Department and Stroke Centre, Hospital La Paz Institute for Heath Research-IdiPAZ, La Paz Univerisity Hospital, Universidad Autónoma de Madrid, Madrid, Spain
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