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1.
Inflamm Bowel Dis ; 30(4): 554-562, 2024 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-37358904

RESUMO

BACKGROUND: Antitumor necrosis factor (anti-TNF) inhibitors are first-line treatment among patients with ulcerative colitis (UC). With time, patients tend to lose response or become intolerant, necessitating switching to small cell biologics such as tofacitinib or vedolizumab. In this real-world study of a large, geographically diverse US population of TNF-experienced patients with UC, we evaluated the effectiveness and safety of newly initiating treatment with tofacitinib vs vedolizumab. METHODS: We conducted a cohort study using secondary data from a large US insurer (Anthem, Inc.). Our cohort included patients with UC newly initiating treatment with tofacitinib or vedolizumab. Patients were required to have evidence of treatment with anti-TNF inhibitors in the 6 months prior to cohort entry. The primary outcome was treatment persistence >52 weeks. Additionally, we evaluated the following secondary outcomes as additional measures of effectiveness and safety: (1) all-cause hospitalization; (2) total abdominal colectomy; (3) hospitalization for infection; (4) hospitalization for malignancy; (5) hospitalization for cardiac events; and (6) hospitalization for thromboembolic events. We used fine stratification by propensity scores to control for confounding by demographics, clinical factors, and treatment history at baseline. RESULTS: Our primary cohort included 168 new users of tofacitinib and 568 new users of vedolizumab. Tofacitinib was associated with lower treatment persistence (adjusted risked ratio, 0.77; 95% CI, 0.60 -0.99). Differences in secondary measures of effectiveness or safety between tofacitinib initiators vs vedolizumab initiators were not statistically significant (all-cause hospitalization, adjusted hazard ratio, 1.23; 95% CI, 0.83-1.84; total abdominal colectomy, adjusted HR, 1.79; 95% CI, 0.93-3.44;and hospitalization for any infection, adjusted HR, 1.94; 95% CI, 0.83-4.52). DISCUSSION: Ulcerative colitis patients with prior anti-TNF experience initiating tofacitinib demonstrated lower treatment persistence compared with those initiating vedolizumab. This finding is in contrast to other recent studies suggesting superior effectiveness of tofacitinib. Ultimately, head-to-head randomized, controlled trials that focus on directly measured end points may be needed to best inform clinical practice.


Anti-TNF-experienced patients with UC initiating vedolizumab demonstrated higher treatment persistence compared with those initiating tofacitinib in this real-world evaluation of comparative effectiveness. Ultimately, head-to-head randomized trials that focus on directly measured end points are needed to best inform clinical practice.


Assuntos
Anticorpos Monoclonais Humanizados , Colite Ulcerativa , Piperidinas , Pirimidinas , Humanos , Estudos de Coortes , Colite Ulcerativa/patologia , Resultado do Tratamento , Inibidores do Fator de Necrose Tumoral/uso terapêutico
2.
Inflamm Bowel Dis ; 2023 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-37611117

RESUMO

BACKGROUND AND AIMS: Immunosuppressed individuals are at higher risk for COVID-19 complications, yet data in patients with inflammatory bowel disease (IBD) are limited. We evaluated the risk of COVID-19- severe sequelae by medication utilization in a large cohort of patients with IBD. METHODS: We conducted a retrospective cohort study utilizing insurance claims data between August 31, 2019, and August 31, 2021.We included IBD patients identified by diagnosis and treatment codes. Use of IBD medications was defined in the 90 days prior to cohort entry. Study outcomes included COVID-19 hospitalization, mechanical ventilation, and inpatient death. Patients were followed until the outcome of interest, outpatient death, disenrollment, or end of study period. Due to the aggregate nature of available data, we were unable to perform multivariate analyses. RESULTS: We included 102 986 patients (48 728 CD, 47 592 UC) with a mean age of 53 years; 55% were female. Overall, 412 (0.4%) patients were hospitalized with COVID-19. The incidence of hospitalization was higher in those on corticosteroids (0.6% vs 0.3%; P < .0001; 13.6 per 1000 person-years; 95% confidence interval [CI], 10.8-16.9) and lower in those receiving anti-tumor necrosis factor α therapy (0.2% vs 0.5%; P < .0001; 3.9 per 1000 person-years; 95% CI, 2.7-5.4). Older age was associated with increased hospitalization with COVID-19. Overall, 71 (0.07%) patients required mechanical ventilation and 52 (0.05%) died at the hospital with COVID-19. The proportion requiring mechanical ventilation (1.9% vs 0.05%; P < .0001; 3.9 per 1000 person-years; 95% CI, 2.5-5.9) was higher among users of corticosteroids. CONCLUSIONS: Among patients with IBD, those on corticosteroids had more hospitalizations and mechanical ventilation with COVID-19. Anti-tumor necrosis factor α therapy was associated with a decreased risk of hospitalization. These findings reinforce previous guidance to taper and/or discontinue corticosteroids in IBD.

3.
Am J Gastroenterol ; 118(4): 674-684, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36508681

RESUMO

INTRODUCTION: Many patients with Crohn's disease (CD) lose response or become intolerant to antitumor necrosis factor (TNF) therapy and subsequently switch out of class. We compared the effectiveness and safety of ustekinumab to vedolizumab in a large, geographically diverse US population of TNF-experienced patients with CD. METHODS: We conducted a retrospective cohort study using longitudinal claims data from a large US insurer (Anthem, Inc.). We identified patients with CD initiating vedolizumab or ustekinumab with anti-TNF treatment in the prior 6 months. Our primary outcome was treatment persistence for >52 weeks. Secondary outcomes included (i) all-cause hospitalization, (ii) hospitalization for CD with surgery, (iii) hospitalization for CD without surgery, and (iv) hospitalization for infection. Propensity score fine stratification was used to control for demographic and baseline clinical characteristics and prior treatments. RESULTS: Among 885 new users of ustekinumab and 490 new users of vedolizumab, we observed no difference in treatment persistence (adjusted risk ratio 1.09 [95% confidence interval 0.95-1.25]). Ustekinumab was associated with a lower rate of all-cause hospitalization (adjusted hazard ratio 0.73 [0.59-0.91]), nonsurgical CD hospitalization (adjusted hazard ratio 0.58 [0.40-0.83]), and hospitalization for infection (adjusted hazard ratio 0.56 [0.34-0.92]). DISCUSSION: This real-world comparative effectiveness study of anti-TNF-experienced patients with CD initiating vedolizumab or ustekinumab showed similar treatment persistence rates beyond 52 weeks, although secondary outcomes such as all-cause hospitalizations, nonsurgical CD hospitalizations, and hospitalizations for infection favored ustekinumab initiation. We, therefore, advocate for individualized decision making in this medically refractory population, considering patient preference and other factors such as cost and route of administration.


Assuntos
Doença de Crohn , Ustekinumab , Humanos , Ustekinumab/uso terapêutico , Doença de Crohn/tratamento farmacológico , Doença de Crohn/cirurgia , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Estudos Retrospectivos , Necrose/tratamento farmacológico , Resultado do Tratamento
4.
JNCI Cancer Spectr ; 5(2)2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33733052

RESUMO

Background: European studies reported an increased risk of nonmelanoma skin cancer associated with hydrochlorothiazide (HCTZ)-containing products. We examined the risks of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) associated with HCTZ compared with angiotensin-converting enzyme inhibitors (ACEIs) in a US population. Methods: We conducted a retrospective cohort study in the US Food and Drug Administration's Sentinel System. From the date of HCTZ or ACEI dispensing, patients were followed until a SCC or BCC diagnosis requiring excision or topical chemotherapy treatment on or within 30 days after the diagnosis date or a censoring event. Using Cox proportional hazards regression models, we estimated the hazard ratios (HRs), overall and separately by age, sex, and race. We also examined site- and age-adjusted incidence rate ratios (IRRs) by cumulative HCTZ dose within the matched cohort. Results: Among 5.2 million propensity-score matched HCTZ and ACEI users, the incidence rate (per 1000 person-years) of BCC was 2.78 and 2.82, respectively, and 1.66 and 1.60 for SCC. Overall, there was no difference in risk between HCTZ and ACEIs for BCC (HR = 0.99, 95% confidence interval [CI] = 0.97 to 1.00), but there was an increased risk for SCC (HR = 1.04, 95% CI = 1.02 to 1.06). HCTZ use was associated with higher risks of BCC (HR = 1.09, 95% CI = 1.07 to 1.11) and SCC (HR = 1.15, 95% CI = 1.12 to 1.17) among Caucasians. Cumulative HCTZ dose of 50 000 mg or more was associated with an increased risk of SCC in the overall population (IRR = 1.19, 95% CI = 1.05 to 1.35) and among Caucasians (IRR = 1.27, 95% CI = 1.10 to 1.47). Conclusions: Among Caucasians, we identified small increased risks of BCC and SCC with HCTZ compared with ACEI. Appropriate risk mitigation strategies should be taken while using HCTZ.


Assuntos
Anti-Hipertensivos/efeitos adversos , Carcinoma Basocelular/induzido quimicamente , Carcinoma de Células Escamosas/induzido quimicamente , Hidroclorotiazida/efeitos adversos , Fármacos Fotossensibilizantes/efeitos adversos , Neoplasias Cutâneas/induzido quimicamente , Adulto , Fatores Etários , Idoso , Inibidores da Enzima Conversora de Angiotensina/administração & dosagem , Inibidores da Enzima Conversora de Angiotensina/efeitos adversos , Anti-Hipertensivos/administração & dosagem , Carcinoma Basocelular/epidemiologia , Carcinoma Basocelular/etnologia , Carcinoma de Células Escamosas/epidemiologia , Carcinoma de Células Escamosas/etnologia , Relação Dose-Resposta a Droga , Feminino , Humanos , Hidroclorotiazida/administração & dosagem , Incidência , Masculino , Pessoa de Meia-Idade , Fármacos Fotossensibilizantes/administração & dosagem , Pontuação de Propensão , Modelos de Riscos Proporcionais , Grupos Raciais/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/etnologia , Raios Ultravioleta , Estados Unidos/epidemiologia , Estados Unidos/etnologia , População Branca
5.
Int J Cancer ; 147(5): 1300-1305, 2020 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-31997371

RESUMO

Several commonly used immune-suppressing biologic drugs target proteins and cytokines involved in myeloma pathogenesis. Our objective was to determine whether targeted biologic disease-modifying antirheumatic drugs (DMARDs) are associated with risk of multiple myeloma (MM). We conducted a nested case-control study within a retrospective cohort of 56,886 commercially insured adults undergoing treatment for rheumatoid arthritis, psoriatic arthritis or ankylosing spondylitis between 2009 and 2015 using the Truven Health MarketScan Databases. MM cases (n = 287) were matched to up to 10 controls (n = 2,760) on age, sex and rheumatologic indication using incidence density sampling without replacement. Our exposures of interest were biologic DMARDs targeting tumor necrosis factor-alpha, interleukin 6, cytotoxic t-lymphocyte-associated protein-4 and depletion of B cells. Relative risks were estimated as adjusted odds ratios (OR) and 95% confidence intervals (CI) using conditional logistic regression models. Cases and controls were similar with respect to use of prescription NSAIDs and concurrent conventional-synthetic DMARDs. Cases had slightly fewer etanercept users (4% vs. 7%) and slightly more tocilizumab users (1.4% vs. 0.4%). Compared to patients treated with only conventional-synthetic DMARDs, those receiving concomitant conventional-synthetic plus biologic DMARDs had lower risk of developing MM (OR = 0.48; 95% CI 0.30-0.88; p = 0.02). Risks differed by drug target with an inverse association observed with use of etanercept inhibiting tumor necrosis factor-alpha (OR = 0.55; 95% CI 0.30-1.02; p = 0.06) and a positive association with tocilizumab inhibiting interleukin-6 (OR = 4.33; 95% CI 1.33-14.19; p = 0.02) compared to biologic DMARD-naïve patients. Further investigation is warranted to understand the roles of drugs suppressing tumor necrosis factor-alpha and interleukin-6 in myeloma pathogenesis.


Assuntos
Antirreumáticos/uso terapêutico , Produtos Biológicos/uso terapêutico , Mieloma Múltiplo/epidemiologia , Idoso , Artrite/tratamento farmacológico , Artrite/epidemiologia , Estudos de Casos e Controles , Bases de Dados Factuais , Feminino , Humanos , Interleucina-6/antagonistas & inibidores , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/induzido quimicamente , Razão de Chances , Estudos Retrospectivos , Fator de Necrose Tumoral alfa/antagonistas & inibidores
6.
Medicine (Baltimore) ; 98(46): e17960, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31725657

RESUMO

Despite near universal health coverage under Medicare, racial disparities persist in the treatment of diffuse large B-cell lymphoma (DLBCL) among older patients in the United States. Studies evaluating DLBCL outcomes often treat socioeconomic status (SES) measures as confounders, potentially introducing biases when SES factors are mediators of disparities in cancer treatment.To examine differences in DLBCL treatment, we performed causal mediation analyses of SES measures, including: metropolitan statistical area (MSA) of residence; census-tract poverty level; and private Medicare supplementation using the Surveillance, Epidemiology and End Results-Medicare linked database between 2001 and 2011. In this retrospective cohort study of DLBCL patients ages 66+ years, we conducted a series of multivariable logistic regression analyses estimating odds ratios (OR) and 95% confidence intervals (CI) relating chemo- and/or immuno-therapy treatment and each SES measure, comparing non-Hispanic (NH)-black, Hispanic/Latino, and Asian/Pacific Islander (API) to NH-white patients.Compared to NH-white patients, racial/ethnic minority patients had lower odds of receiving chemo- and/or immuno-therapy treatment (NH-black: OR 0.84, 95% CI 0.65, 1.08; API: OR 0.80, 95% CI 0.64, 1.01; Hispanic/Latino: OR 0.78, 95% CI 0.64, 0.96) and higher odds of lacking private Medicare supplementation and residence within an urban MSA and poor census tracts. Adjustment for SES measures as confounders nullified observed racial differences. In causal mediation analyses, between 31% and 38% of race/ethnicity differences were mediated by having private Medicare supplementation.Providing equitable access to Medicare supplementation may reduce disparities in receipt of chemo- and/or immuno-therapy treatment in older DLBCL patients.


Assuntos
Disparidades em Assistência à Saúde/etnologia , Linfoma Difuso de Grandes Células B/terapia , Grupos Raciais/estatística & dados numéricos , Negro ou Afro-Americano , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/uso terapêutico , Asiático , Feminino , Hispânico ou Latino , Humanos , Imunoterapia/métodos , Modelos Logísticos , Linfoma Difuso de Grandes Células B/etnologia , Linfoma Difuso de Grandes Células B/patologia , Masculino , Medicare/estatística & dados numéricos , Estadiamento de Neoplasias , Características de Residência , Estudos Retrospectivos , Programa de SEER , Fatores Sexuais , Fatores Socioeconômicos , Estados Unidos , População Branca
7.
Pharmacotherapy ; 39(9): 921-928, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31332810

RESUMO

STUDY OBJECTIVE: Bevacizumab is used in the treatment of recurrent glioblastoma, but evidence is limited on the incidence of thromboembolic complications regarding the use of this drug in real-world settings. We evaluated the risk of arterial thromboembolism (ATE) and venous thromboembolism (VTE) associated with the use of bevacizumab among adults diagnosed with high-grade gliomas in a commercially insured U.S. DESIGN: Nested case-control study. DATA SOURCE: Truven Health MarketScan Commercial and Medicare Supplemental health claims databases (2009-2015). PATIENTS: A total of 2157 patients with high-grade gliomas who underwent incident (first-time) craniotomy, radiation, and concurrent temozolomide treatment between 2009 and 2015 were identified. Overall, 25 cases of ATE and 99 cases of VTE were each identified in this cohort, and each case was matched to up to 10 controls (170 for ATE and 819 for VTE) based on sex, age, quarter year of index time, and follow-up duration by using incidence density sampling without replacement from the overall cohort. Controls were at risk for the outcome of interest (ATE or VTE) at the time of case occurrence and survived at least as long as their referent case. MEASUREMENTS AND MAIN RESULTS: Exposure to bevacizumab was determined during inpatient or outpatient encounters between the index date (date of the incident craniotomy) and the ATE or VTE event or corresponding matched control date. Multivariable conditional logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the risk of ATE and VTE separately. A higher proportion of patients with ATE received bevacizumab compared with controls (28% vs 17%; adjusted OR 1.51, 95% CI 0.54-4.24), but this excess in odds was not statistically significant. Similarly, bevacizumab was not significantly associated with VTE (13% vs 9%; adjusted OR 1.40, 95% CI 0.71-2.75). CONCLUSION: We found no significant association between the use of bevacizumab and the occurrence of thromboembolic events in patients with high-grade gliomas, although our study was limited by the small number of ATE events. Because the potential for complications from arterial thrombosis cannot be completely ruled out, further research is needed to confirm the thromboembolic safety of bevacizumab in a larger sample of patients with high-grade gliomas.


Assuntos
Antineoplásicos Imunológicos/uso terapêutico , Bevacizumab/uso terapêutico , Glioma/tratamento farmacológico , Tromboembolia/epidemiologia , Adulto , Idoso , Antineoplásicos Imunológicos/administração & dosagem , Antineoplásicos Imunológicos/efeitos adversos , Bevacizumab/administração & dosagem , Bevacizumab/efeitos adversos , Estudos de Casos e Controles , Feminino , Humanos , Incidência , Revisão da Utilização de Seguros , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Razão de Chances , Estudos Retrospectivos , Fatores de Risco , Fatores Socioeconômicos , Estados Unidos , Tromboembolia Venosa/epidemiologia
9.
Cancer ; 125(7): 1143-1154, 2019 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-30548485

RESUMO

BACKGROUND: Granulocyte colony-stimulating factors (G-CSFs), which are used for the prevention of complications from chemotherapy-related neutropenia, are linked to the risk of developing second primary myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). The objective of this study was to examine the correlation between using a specific G-CSF agent and the risk of MDS/AML among older patients with non-Hodgkin lymphoma (NHL). METHODS: This was a retrospective cohort study of adults aged >65 years who were diagnosed with first primary NHL between 2001 and 2011. With data from the Surveillance, Epidemiology, and End Results-Medicare-linked database, adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated for the risk of MDS/AML associated with the receipt of G-CSF(filgrastim and pegfilgrastim) in Cox proportional-hazards models, which were stratified according to treatment accounting for confounding by indication. RESULTS: Among 18,245 patients with NHL patients who had a median follow-up of 3.5 years, 56% received chemotherapy and/or immunotherapy, and G-CSF was most commonly used in those who received rituximab plus multiple chemotherapy regimens (77%). Subsequent MDS/AML diagnoses were identified in 666 patients (3.7%). A modest increased risk of MDS/AML was observed with the receipt of G-CSF (HR, 1.28; 95% CI, 1.01-1.62) and a trend was observed with increasing doses (Ptrend < .01). When specific agents were analyzed, an increased risk of MDS/AML was consistently observed with filgrastim (≥10 doses: HR, 1.67; 95% CI, 1.25-2.23), but not with pegfilgrastim (≥10 + doses: HR, 1.11; 95% CI, 0.84-1.45). CONCLUSIONS: A higher of MDS/AML was observed in patients with NHL risk among those who received G-CSF that was specific to the use of filgrastim (≥10 doses), but not pegfilgrastim. Neutropenia prophylaxis is an essential component of highly effective NHL treatment regimens. The differential risk related to the types of G-CSF agents used warrants further study given their increasing use and newly available, US Food and Drug Administration-approved, biosimilar products.


Assuntos
Filgrastim/uso terapêutico , Fármacos Hematológicos/uso terapêutico , Leucemia Mieloide Aguda/epidemiologia , Linfoma não Hodgkin/tratamento farmacológico , Síndromes Mielodisplásicas/epidemiologia , Segunda Neoplasia Primária/epidemiologia , Neutropenia/prevenção & controle , Polietilenoglicóis/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos Imunológicos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Feminino , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Humanos , Armazenamento e Recuperação da Informação , Masculino , Medicare , Neutropenia/induzido quimicamente , Rituximab/efeitos adversos , Programa de SEER , Estados Unidos/epidemiologia
10.
Int J Cancer ; 143(5): 1062-1071, 2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-29603214

RESUMO

Based on limited evidence, the U.S. Food and Drug Administration (FDA) issued a black box warning for the use of tumor necrosis factor-alpha inhibitors (TNFIs) and risk of non-Hodgkin lymphoma (NHL). Our objective was to determine the risk of NHL associated with TNFI use by duration and type of anti-TNF agent. We performed a nested case-control study within a retrospective cohort of adults with rheumatologic conditions from a U.S. commercial health insurance database between 2009 and 2015. Use of TNFIs (infliximab, adalimumab, etanercept, golimumab and certolizumab pegol) and conventional-synthetic disease-modifying antirheumatic drugs (csDMARDs) was identified, and conditional logistic regression models were used to estimate adjusted odds ratios (OR) and 95% confidence intervals (CI) for risk of NHL. From a retrospective cohort of 55,446 adult patients, 101 NHL cases and 984 controls matched on age, gender and rheumatologic indication were included. Compared to controls, NHL cases had greater TNFI use (33% vs. 20%) but were similar in csDMARD use (70% vs. 71%). TNFI ever-use was associated with nearly two-fold increased risk of NHL (OR = 1.93; 95% CI: 1.16-3.20) with suggestion of increasing risk with duration (P-trend = 0.05). TNF fusion protein (etanercept) was associated with increased NHL risk (OR = 2.73; 95% CI: 1.40-5.33), whereas risk with anti-TNF monoclonal antibodies was not statistically significant (OR = 1.77; 95% CI: 0.87-3.58). In sensitivity analyses evaluating confounding by rheumatologic disease severity, channeling bias was not likely to account for our results. Our findings support the FDA black box warning for NHL. Continued surveillance and awareness of this rare but serious adverse outcome are warranted with new TNFIs and biosimilar products forthcoming.


Assuntos
Antirreumáticos/efeitos adversos , Artrite Reumatoide/tratamento farmacológico , Linfoma não Hodgkin/induzido quimicamente , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos
11.
Semin Arthritis Rheum ; 47(2): 157-164, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28410817

RESUMO

OBJECTIVE: Self-injectable TNF inhibitors are increasingly used early in the chronic treatment of moderate to severe rheumatologic conditions. We estimated medication adherence/persistence over time following initiation in young adult and older adult patients with rheumatoid arthritis, ankylosing spondylitis or psoriatic arthritis. METHODS: We conducted a retrospective cohort study of patients aged 18+ years newly initiating etanercept, adalimumab, certolizumab pegol, or golimumab using the Truven Health MarketScan Database between 2009 and 2013. Pharmacy dispensing data were used to calculate 12-month medication possession ratios (MPR) and determine adherence (MPR ≥ 0.80) for up to 3 years after starting therapy. Persistence over each 12-month interval was defined as not having a ≥92-day treatment gap. Multivariable generalized estimating equation models were used to calculate odds ratios (OR) and robust 95% confidence intervals (CI) for associations between patient characteristics and repeated adherence/persistence measures over time. RESULTS: Among 53,477 new users, 14% were young adults (18-34 years), 49% middle-aged (35-54 years), and 37% older adults (55+ years). Overall, 37% of patients were adherent and 83% were persistent in the first year of therapy. The lowest adherence (17%) and persistence (70%) were observed among young adult patients by Year +3. Compared to older adults, middle-aged (OR = 0.73, 95% CI: 0.71-0.76) and young adults (OR = 0.50, 95% CI: 0.47-0.53) were less likely to be adherent. Higher Charlson comorbidity scores, hospitalizations, and emergency department visits were associated with non-adherence/non-persistence. CONCLUSIONS: We observed low adherence to self-administered TNF inhibitors but most patients remained persistent over time. Further efforts to improve adherence in young adults and patients with greater comorbidity are needed.


Assuntos
Antirreumáticos/uso terapêutico , Adesão à Medicação , Doenças Reumáticas/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Adolescente , Adulto , Fatores Etários , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
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