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1.
Cost Eff Resour Alloc ; 16: 17, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29773969

RESUMO

BACKGROUND: Cost-effectiveness of once-daily umeclidinium bromide (UMEC) was compared with once-daily tiotropium (TIO) and once-daily glycopyrronium (GLY) in patients with chronic obstructive pulmonary disease (COPD) from a UK National Health Service (NHS) perspective. METHODS: A linked-equation model was implemented to estimate COPD progression, associated healthcare costs, exacerbations rates, life years (LY) and quality-adjusted LY (QALYs). Statistical risk equations for endpoints and resource use were derived from the ECLIPSE and TORCH studies, respectively. Treatment effects [mean (standard error)] at 12 weeks on forced expiratory volume in 1 s and St George's Respiratory Questionnaire score were obtained from the intention-to-treat populations of two head-to-head studies [GSK study identifiers 201316 (NCT02207829) and 201315 (NCT02236611)] which compared UMEC 62.5 mcg with TIO 18 mcg and UMEC 62.5 mcg with GLY 50 mcg, respectively. Treatment costs reflect UK list prices (2016) and NHS unit costs; UMEC and GLY prices being equal and less than TIO. A lifetime horizon, discounted costs and effects at 3.5% were used. Sensitivity analyses were performed to evaluate the robustness of variations in input parameters and assumptions in the model. RESULTS: Over a lifetime horizon, UMEC was predicted to increase LYs (+ 0.195; 95% confidence interval [CI]: 0.069, 0.356) and QALYs (+ 0.118; 95% CI: 0.055, 0.191) and reduce the number of annual exacerbations (- 0.053; 95% CI: - 0.171, 0.028) compared with TIO, with incremental cost savings of £460/patient (95% CI: - £645, - £240). Compared with GLY, UMEC increased LYs (+ 0.124; 95% CI: 0.015, 0.281) and QALYs (+ 0.101; 95% CI: 0.043, 0.179) and reduced annual exacerbation (- 0.033; 95% CI: - 0.135, 0.017) at an additional cost of £132/patient (95% CI: £12, £330), resulting in an incremental cost-effectiveness ratio of £1310/QALY (95% CI: £284, £2060). Similar results were observed in alternative time horizons and additional sensitivity analyses. CONCLUSIONS: For treatment of patients with COPD in the UK over a lifetime horizon, treatment with UMEC dominates treatment with TIO, providing both improved health outcomes and cost savings. In comparison with GLY, treatment with UMEC achieved improved health outcomes but was associated with a higher cost.Trial registration 201316, NCT02207829; 201315, NCT02236611.

2.
Urol Case Rep ; 52: 102643, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38274359

RESUMO

Exstrophy variants are uncommon developmental anomalies, with the inferior vesical variant being the rarest among them. We present the case of a 1-year-old continent boy with an inferior vesical fistula (IVF) with solitary kidney and ureterocele where simple closure was done followed by a normal micturition pattern. Only two cases of IVF have been reported yet, ours being the first with solitary kidney and ureterocele.

3.
Respir Med ; : 107694, 2024 Jun 04.
Artigo em Inglês | MEDLINE | ID: mdl-38844004

RESUMO

BACKGROUND: This cost-utility analysis assessed the long-term clinical and economic benefits of fluticasone furoate/umeclidinium/vilanterol (FF/UMEC/VI) triple therapy vs FF/VI or UMEC/VI from a Quebec societal perspective in patients with chronic obstructive pulmonary disease (COPD) with ≥1 moderate/severe exacerbation in the previous year. METHODS: The validated GALAXY disease progression model was utilized, with parameters set to baseline and efficacy data from IMPACT. Treatment costs (2017 Canadian dollars [C$]) were estimated using Quebec-specific unit costs. Costs and health outcomes were discounted at 1.5%/year. A willingness-to-pay threshold of C$50,000/quality-adjusted life year (QALY) was considered cost-effective. Outcomes modeled were exacerbation rates, QALYs, life years (LYs), costs and incremental cost-effectiveness ratios (ICERs). Subgroup analyses were performed according to prior treatment, exacerbation history in the previous year, and baseline lung function. RESULTS: Over a lifetime horizon, FF/UMEC/VI resulted in more QALYs and LYs gained, at a small incremental cost compared with FF/VI and UMEC/VI. From a societal perspective, the estimated ICER for the base case was C$18,152/QALY vs FF/VI, and C$15,847/QALY vs UMEC/VI. For the subgroup analyses (FF/UMEC/VI compared with FF/VI and UMEC/VI), ICERs ranged from: C$17,412-25,664/QALY and C$16,493-18,663/QALY (prior treatment); C$15,247-19,924/QALY and C$15,444-28,859/QALY (exacerbation history); C$14,025-34,154/QALY and C$16,083-17,509/QALY (baseline lung function). INTERPRETATION: FF/UMEC/VI was predicted to improve outcomes and be cost-effective vs both comparators in the base case and all subgroup analyses, and based on this analysis would be an appropriate investment of health service funds in Quebec. CLINICAL TRIAL REGISTRATION NUMBER: IMPACT trial NCT02164513.

4.
Value Health ; 16(2): 325-33, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23538185

RESUMO

OBJECTIVES: Heavy menstrual bleeding negatively impacts the health and quality of life of about 18 million women in the United States. Although some studies have established the clinical effectiveness of heavy menstrual bleeding treatments, few have evaluated their cost-effectiveness. Our objective was to evaluate the cost-effectiveness of the levonorgestrel-releasing intrauterine system (LNG-IUS) compared with other therapies for idiopathic heavy menstrual bleeding. METHODS: We developed a model comparing the clinical and economic outcomes (from a US payer perspective) of three broad initial treatment strategies over 5 years: LNG-IUS, oral agents, or surgery. Up to three nonsurgical treatment lines, followed by up to two surgical lines, were allowed; unintended pregnancy was possible, and women could discontinue any time during nonsurgical treatments. Menstrual blood loss of 80 ml or more per cycle determined treatment failure. RESULTS: Initiating treatment with LNG-IUS resulted in the fewest hysterectomies (6 per 1000 women), the most quality-adjusted life-years (3.78), and the lowest costs ($1137) among all the nonsurgical strategies. Initiating treatment with LNG-IUS was also less costly than surgery, resulted in fewer hysterectomies (vs. 9 per 1000 for ablation) but was associated with fewer quality-adjusted life-years gained per patient (vs. 3.80 and 3.88 for ablation and hysterectomy, respectively). Sensitivity analyses confirmed these results. CONCLUSIONS: LNG-IUS resulted in the lowest treatment costs and the fewest number of hysterectomies performed over 5 years compared with all other initial strategies and resulted in the most quality-adjusted life-years gained among nonsurgical options. Initial treatment with LNG-IUS is the least costly and most effective option for women desiring to preserve their fertility.


Assuntos
Dispositivos Intrauterinos Medicados/economia , Levanogestrel/economia , Menorragia/economia , Análise Custo-Benefício , Feminino , Humanos , Histerectomia/efeitos adversos , Histerectomia/economia , Histerectomia/estatística & dados numéricos , Levanogestrel/administração & dosagem , Levanogestrel/uso terapêutico , Menorragia/tratamento farmacológico , Menorragia/cirurgia , Modelos Econômicos , Gravidez , Gravidez não Planejada , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Estados Unidos
5.
Artigo em Inglês | MEDLINE | ID: mdl-37603475

RESUMO

Automatic Speech Recognition (ASR) technologies can be life-changing for individuals who suffer from dysarthria, a speech impairment that affects articulatory muscles and results in incomprehensive speech. Nevertheless, the performance of the current dysarthric ASR systems is unsatisfactory, especially for speakers with severe dysarthria who most benefit from this technology. While transformer and neural attention-base sequences-to-sequence ASR systems achieved state-of-the-art results in converting healthy speech to text, their applications as a Dysarthric ASR remain unexplored due to the complexities of dysarthric speech and the lack of extensive training data. In this study, we addressed this gap and proposed our Dysarthric Speech Transformer that uses a customized deep transformer architecture. To deal with the data scarcity problem, we designed a two-phase transfer learning pipeline to leverage healthy speech, investigated neural freezing configurations, and utilized audio data augmentation. Overall, we trained 45 speaker-adaptive dysarthric ASR in our investigations. Results indicate the effectiveness of the transfer learning pipeline and data augmentation, and emphasize the significance of deeper transformer architectures. The proposed ASR outperformed the state-of-the-art and delivered better accuracies for 73% of the dysarthric subjects whose speech samples were employed in this study, in which up to 23% of improvements were achieved.


Assuntos
Disartria , Fala , Humanos , Interface para o Reconhecimento da Fala , Distúrbios da Fala , Aprendizagem
6.
Int J Chron Obstruct Pulmon Dis ; 18: 1815-1825, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37636901

RESUMO

Purpose: For patients with chronic obstructive pulmonary disease (COPD) who remain symptomatic despite maintenance treatment, clinical management guidelines recommend a stepwise escalation from monotherapy to dual therapy, and from dual therapy to triple therapy. However, in clinical practice, patients are often escalated directly from monotherapy to triple therapy based on disease severity. This study evaluated the cost-effectiveness of once-daily, single-inhaler fluticasone furoate, umeclidinium, and vilanterol (FF/UMEC/VI) triple therapy compared with long-acting muscarinic antagonist monotherapy with once-daily tiotropium (TIO) in patients with symptomatic moderate-to-very severe COPD, from a UK National Health Service perspective. Patients and Methods: The validated GALAXY-COPD disease progression model was populated with patient baseline characteristics and treatment effect data from the 12-week GSK Study 207626 comparing FF/UMEC/VI with TIO in patients with moderate-to-very severe COPD. UK unit costs and drug costs (British Pound, 2021) were applied to healthcare resource utilization and treatments. The base case analysis was conducted over a lifetime horizon, and costs and health outcomes (except for life years [LYs]) were discounted at 3.5% per year. Model outputs included exacerbation rates, healthcare costs, LYs, quality-adjusted LYs (QALYs), and incremental cost-effectiveness ratios. Results: Overall, treatment with FF/UMEC/VI resulted in increased clinical benefit (reduction in total exacerbations and increased overall survival and QALYs), coupled with cost savings (derived from lower maintenance and exacerbation healthcare costs) compared with TIO monotherapy. In the base case analysis, FF/UMEC/VI provided an additional 0.393 LYs (95% range: 0.176, 0.655) and 0.443 QALYs (0.246, 0.648), at a cost saving of £880 (£54, £1608) versus TIO. FF/UMEC/VI remained the cost-effective (dominant) treatment option across sensitivity and scenario analyses. Conclusion: FF/UMEC/VI offers greater clinical benefits and is a cost-effective treatment option compared with TIO for the treatment of adult patients with COPD with persistent symptoms and/or who are at risk of exacerbation in the UK.


Assuntos
Doença Pulmonar Obstrutiva Crônica , Medicina Estatal , Adulto , Humanos , Brometo de Tiotrópio/efeitos adversos , Análise Custo-Benefício , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Nebulizadores e Vaporizadores , Reino Unido
7.
Urol Case Rep ; 51: 102609, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38033427

RESUMO

Bilateral single system ectopic ureters are a rare entity in paediatric urology. We report a girl child with bilateral single system ectopic ureters with right system opening into the vagina, who presented at 3.5 years with continuous dribbling of urine & a small capacity bladder. Renal scans and MRI were done which indicated bilateral single system ectopic ureters with hydroureteronephrosis. We managed her surgically by a right nephro-ureterectomy, bladder augmentation, left ureteric reimplantation and Mitrofanoff. Post op patient had acute on chronic renal failure, stabalised by haemodialysis. It is a rare presentation if managed promptly can prevent renal replacement therapy.

8.
ERJ Open Res ; 8(1)2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35198630

RESUMO

BACKGROUND: The IMPACT trial demonstrated superior outcomes following 52 weeks of once-daily single-inhaler treatment with fluticasone furoate (FF)/umeclidinium (UMEC)/vilanterol (VI) (100/62.5/25 µg) compared with once-daily FF/VI (100/25 µg) or UMEC/VI (62.5/25 µg). This study evaluated the cost-effectiveness of FF/UMEC/VI compared with FF/VI or UMEC/VI for the treatment of chronic obstructive pulmonary disease (COPD) from a UK National Health Service perspective. METHODS: Patient characteristics and treatment effects from IMPACT were populated into a hybrid decision tree/Markov economic model. Costs (GB£ inflated to 2018 equivalents) and health outcomes were modelled over a lifetime horizon, with a discount rate of 3.5% per annum applied to both. Sensitivity analyses were performed to test the robustness of key assumptions and input parameters. RESULTS: Compared with FF/VI and UMEC/VI, FF/UMEC/VI provided an additional 0.296 and 0.145 life years (LYs) (discounted) and 0.275 and 0.118 quality-adjusted life years (QALYs), at an additional cost of £1129 and £760, respectively. Incremental cost-effectiveness ratios (ICERs) for FF/UMEC/VI were £4104/QALY and £3809/LY gained versus FF/VI and £6418/QALY and £5225/LY gained versus UMEC/VI. At a willingness-to-pay threshold of £20 000/QALY, the probability that FF/UMEC/VI was cost-effective was 96% versus FF/VI and 74% versus UMEC/VI. Results were similar in a subgroup of patients recommended triple therapy in the 2019 National Institute for Health and Care Excellence COPD guideline. CONCLUSIONS: FF/UMEC/VI single-inhaler triple therapy improved health outcomes and was a cost-effective option compared with FF/VI or UMEC/VI for patients with symptomatic COPD and a history of exacerbations in the UK at recognised cost-effectiveness threshold levels.

9.
Int J Chron Obstruct Pulmon Dis ; 17: 2745-2755, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36317185

RESUMO

Purpose: The 24-week INTREPID trial demonstrated the clinical benefits of once-daily single-inhaler triple therapy (SITT) with fluticasone furoate, umeclidinium, and vilanterol (FF/UMEC/VI) versus non-ELLIPTA multiple-inhaler triple therapy (MITT) in patients with symptomatic chronic obstructive pulmonary disease (COPD). This analysis assessed the cost-effectiveness of FF/UMEC/VI versus non-ELLIPTA MITT for the treatment of symptomatic COPD from a United Kingdom (UK) National Health Service (NHS) perspective. Patients and Methods: The analysis was conducted using the validated GALAXY COPD disease progression model. Baseline characteristics, treatment effect parameters (forced expiratory volume in 1 second and St. George's Respiratory Questionnaire score [derived from exploratory COPD Assessment Test score mapping]), and discontinuation data from INTREPID were used to populate the model. UK healthcare resource and drug costs (2020 British pounds) were applied, and costs and outcomes were discounted at 3.5%. Analyses were conducted over a lifetime horizon from a UK NHS perspective. Model outputs included exacerbation rates, total costs, life years (LYs), quality-adjusted LYs (QALYs) and incremental cost-effectiveness ratio per QALY. Sensitivity analyses were conducted to assess the robustness of the results by varying parameter values and assumptions. Results: Over a lifetime horizon, FF/UMEC/VI provided an additional 0.174 (95% confidence interval [CI]: 0.024, 0.344) LYs (approximately 2 months), and 0.253 (95% CI: 0.167, 0.346) QALYs (approximately 3 months), at a cost saving of £1764 (95% CI: -£2600, -£678) per patient, compared with non-ELLIPTA MITT. FF/UMEC/VI remained the dominant treatment option, meaning greater benefits at lower costs, across all scenario and sensitivity analyses. Conclusion: Based on this analysis, in a UK setting, FF/UMEC/VI would improve health outcomes and reduce costs compared with non-ELLIPTA MITT for the treatment of patients with symptomatic COPD. SITT may help to reduce the clinical and economic burden of COPD and should be considered by physicians as a preferred treatment option.


Assuntos
Nebulizadores e Vaporizadores , Doença Pulmonar Obstrutiva Crônica , Humanos , Administração por Inalação , Androstadienos , Álcoois Benzílicos , Broncodilatadores , Clorobenzenos , Análise Custo-Benefício , Método Duplo-Cego , Combinação de Medicamentos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Quinuclidinas , Medicina Estatal
10.
J Clin Rheumatol ; 17(3): 154-6, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21464671

RESUMO

The rheumatologic manifestations of human immunodeficiency virus (HIV) infection have been recognized since the early days of the epidemic and are characteristic of this disorder. It has been noted that the clinical spectrum of rheumatic disorders in patients with HIV infection has changed since the advent of highly active antiretroviral therapy (HAART) in the mid-1990s. Furthermore, HIV infection may become clinically apparent in rheumatic disease patients during or after they are treated with immunosuppressive therapy. The emergence of manifestations of HIV infection may develop during or after such therapy and may be confused with clinical manifestations known to be associated with the underlying rheumatic disease. In patients with established rheumatologic disease, it is difficult to consider the diagnosis of HIV especially in individuals with few or no known risk factors. In this review, we report 2 cases with established systemic rheumatic disease who developed complications originally thought to be secondary to the underlying inflammatory disorder or antirheumatic therapy. Ultimately, both patients were found to be HIV positive. Recognition of the overlapping signs or symptoms of systemic rheumatic diseases, antirheumatic therapy, and HIV infection can be lifesaving. We propose that all patients with systemic rheumatic diseases, especially those receiving or being considered for disease-modifying antirheumatic therapy, be evaluated systematically for the presence of HIV, taking into consideration the recent Centers for Disease Control and Prevention recommendations for routine opt-out HIV screening in all healthcare settings for those aged 13 to 64 years.


Assuntos
Artrite Reumatoide/etiologia , Infecções por HIV/complicações , Infecções por HIV/diagnóstico , Lúpus Eritematoso Sistêmico/etiologia , Programas de Rastreamento/tendências , Adulto , Terapia Antirretroviral de Alta Atividade , Feminino , Humanos , Pessoa de Meia-Idade , Resultado do Tratamento
11.
J Mater Chem B ; 9(46): 9497-9504, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34553741

RESUMO

The structure of a hydrogel network determines its ability to dissipate stress upon deformation, as well as its ability to swell in water. By designing systems with cross-linkable thiol groups in the monomers, radical thiol-ene chemistry was used to form controlled networks for acrylamide monomers. The use of radical thiol-ene chemistry effectively suppressed homo-polymerization of the bis(acrylamide) monomer and resulted in networks of alternating thiol and acrylamide monomers. Additionally, if the stoichiometry between the monomers is controlled, the network should approach that of ideality. In the case of bis(acrylamide) monomers, the incorporation of hydrogen-bond donors into the network creates a single network hydrogel with the benefits of high strength and ductility from the simultaneous incorporation of chemical and physical cross-links. Additionally, this strategy suppresses the formation of homo-polymerization in the acrylamide monomer to achieve an alternating network, which is supported with NMR characterization of base-digested fragments. For three different monomer compositions, the resulting gels had high compressive strength (up to 40 MPa) and tunable mechanical properties. The high mechanical strength of the 1 : 1, thiol : ene gel composition is due to the uniform distribution of cross-links, which creates defect-free networks for efficient stress transfer. The present one-pot synthetic strategy toward controlled gel networks affords monomer versatility and synthetic ease, as well as the potential for mechanically robust materials.


Assuntos
Materiais Biocompatíveis , Hidrogéis/química , Teste de Materiais , Fenômenos Mecânicos , Estrutura Molecular , Reologia
12.
Int J Chron Obstruct Pulmon Dis ; 16: 3105-3118, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34916789

RESUMO

INTRODUCTION: Dual bronchodilators are recommended as maintenance treatment for patients with symptomatic COPD in the UK; further evidence is needed to evaluate cost-effectiveness versus monotherapy. Cost-effectiveness of umeclidinium/vilanterol versus umeclidinium and salmeterol from a UK healthcare perspective in patients without exacerbations in the previous year was assessed using post hoc EMAX trial data. METHODS: The validated GALAXY model was populated with baseline characteristics and treatment effects from the non-exacerbating subgroup of the symptomatic EMAX population (COPD assessment test score ≥10) and 2020 UK healthcare and drug costs. Outputs included estimated exacerbation rates, costs, life-years (LYs), and quality-adjusted LYs (QALYs); incremental cost-effectiveness ratio (ICER) was calculated as incremental cost/QALY gained. The base case (probabilistic model) used a 10-year time horizon, assumed no treatment discontinuation, and discounted future costs and QALYs by 3.5% annually. Sensitivity and scenario analyses assessed robustness of model results. RESULTS: Umeclidinium/vilanterol treatment was dominant versus umeclidinium and salmeterol, providing an additional 0.090 LYs (95% range: 0.035, 0.158) and 0.055 QALYs (-0.059, 0.168) with total cost savings of £690 (£231, £1306) versus umeclidinium, and 0.174 LYs (0.076, 0.286) and 0.204 QALYs (0.079, 0.326) with savings of £1336 (£1006, £2032) versus salmeterol. In scenario and sensitivity analyses, umeclidinium/vilanterol was dominant versus umeclidinium except over a 5-year time horizon (more QALYs at higher total cost; ICER=£4/QALY gained) and at the lowest estimate of the St George's Respiratory Questionnaire treatment effect (fewer QALYs at lower total cost; ICER=£12,284/QALY gained); umeclidinium/vilanterol was consistently dominant versus salmeterol. At willingness-to-pay threshold of £20,000/QALY, probability that umeclidinium/vilanterol was cost-effective in this non-exacerbating subgroup was 95% versus umeclidinium and 100% versus salmeterol. CONCLUSION: Based on model predictions from a UK perspective, symptomatic patients with COPD and no exacerbations in the prior year receiving umeclidinium/vilanterol are expected to have better outcomes at lower costs versus umeclidinium and salmeterol.


Assuntos
Doença Pulmonar Obstrutiva Crônica , Administração por Inalação , Álcoois Benzílicos , Broncodilatadores/efeitos adversos , Clorobenzenos , Análise Custo-Benefício , Combinação de Medicamentos , Humanos , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Quinuclidinas , Xinafoato de Salmeterol/uso terapêutico , Resultado do Tratamento , Reino Unido
13.
J Med Econ ; 23(7): 690-697, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32207659

RESUMO

Aims: Heart failure with reduced ejection fraction (HFrEF) has a substantial impact on costs and patients' quality-of-life. This study aimed to estimate the cost-effectiveness of implantable cardioverter defibrillators (ICD), cardiac resynchronization therapy pacemakers (CRT-P), cardiac resynchronization therapy defibrillators (CRT-D), and optimal pharmacologic therapy (OPT) in patients with HFrEF, from a US payer perspective.Materials and methods: The analyses were conducted by adapting the UK-based cost-effectiveness analyses (CEA) to the US payer perspective by incorporating real world evidence (RWE) on baseline hospitalization risk and Medicare-specific costs. The CEA was based on regression equations estimated from data from 13 randomized clinical trials (n = 12,638). Risk equations were used to predict all-cause mortality, hospitalization rates, health-related quality-of-life, and device-specific treatment effects (vs. OPT). These equations included the following prognostic characteristics: age, QRS duration, New York Heart Association (NYHA) class, ischemic etiology, and left bundle branch block (LBBB). Baseline hospitalization rates were calibrated based on RWE from Truven Health Analytics MarketScan data (2009-2014). A US payer perspective, lifetime time horizon, and 3% discount rates for costs and outcomes were used. Benefits were expressed as quality-adjusted life-years (QALYs). Incremental cost-effectiveness analysis was conducted for 24 sub-groups based on LBBB status, QRS duration, and NYHA class.Results: Results of the analyses show that CRT-D was the most cost-effective treatment at a $100,000/QALY threshold in 14 of the 16 sub-groups for which it is indicated. Results were most sensitive to changes in estimates of hospitalization costs.Limitations: Study limitations include small sample sizes for NYHA I and IV sub-groups and lack of data availability for duration of treatment effect.Conclusions: CRT-D has higher greater cost-effectiveness across more sub-groups in the indicated patient populations against as compared to OPT, ICD, and CRT-P, from a US payer perspective.


Assuntos
Dispositivos de Terapia de Ressincronização Cardíaca/economia , Análise Custo-Benefício , Desfibriladores Implantáveis/economia , Insuficiência Cardíaca Sistólica/tratamento farmacológico , Insuficiência Cardíaca Sistólica/cirurgia , Idoso , Bases de Dados Factuais , Feminino , Custos de Cuidados de Saúde , Humanos , Masculino , Medicare , Pessoa de Meia-Idade , Anos de Vida Ajustados por Qualidade de Vida , Estudos Retrospectivos , Estados Unidos
14.
J Neurooncol ; 93(2): 279-83, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19125222

RESUMO

Temozolomide, used for anaplastic gliomas and glioblastoma multiforme, is an oral drug that is stable under acidic, but labile under neutral and basic conditions. Although the bioavailability of temozolomide is approximately 100%, pathology or anatomical changes of the gastrointestinal tract may adversely affect absorption, and consequently therapeutic response. HPLC-UV was used to evaluate temozolomide plasma pharmacokinetics in a patient with unresponsive glioblastoma multiforme who had previously undergone gastric bypass as part of a weight-loss strategy. Temozolomide plasma pharmacokinetics were comparable to values reported for patients with normal gastrointestinal anatomy. These data imply that progression of disease in this patient was not due to inadequate temozolomide concentrations. Physicians need to become aware of the rapidly increasing population of patients who have had a gastric bypass and require oral therapy, of which our case is representative. The effect of gastric bypass on pharmacokinetics will need to be evaluated on a drug-by-drug basis.


Assuntos
Dacarbazina/análogos & derivados , Glioblastoma/tratamento farmacológico , Glioblastoma/patologia , Antineoplásicos/sangue , Antineoplásicos/uso terapêutico , Deleção Cromossômica , Cromossomos Humanos Par 9 , Terapia Combinada , Craniotomia , Dacarbazina/sangue , Dacarbazina/uso terapêutico , Derivação Gástrica , Glioblastoma/radioterapia , Glioblastoma/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/cirurgia , Temozolomida
15.
Br J Clin Pharmacol ; 68(3): 370-4, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19740393

RESUMO

AIMS: Imatinib mesylate (Gleevec/Glivec), which has revolutionized the treatment of chronic myeloid leukemias (CML) and gastrointestinal stromal tumours (GIST), has been reported to cause gastric upset. Consequently, proton pump inhibitors (PPI) are frequently co-administered with imatinib. Because PPI can elevate gastric pH and delay gastric emptying or antagonize ATP-binding-cassette transporters, they could influence imatinib absorption and pharmacokinetics. We aimed to evaluate whether use of omeprazole has a significant effect on imatinib pharmacokinetics. METHODS: Twelve healthy subjects were enrolled in a two-period, open-label, single-institution, randomized cross-over, fixed-schedule study. In one period, each subject received 400 mg imatinib orally. In the other period, 40 mg omeprazole (Prilosec) was administered orally for 5 days, and on day 5 it was administered 15 min before 400 mg imatinib. Plasma concentrations of imatinib and its active N-desmethyl metabolite CGP74588 were assayed by LC-MS, and data were analyzed non-compartmentally. RESULTS: PPI administration did not significantly affect the imatinib area under the plasma concentration vs time curve (AUC) (34.1 microg ml(-1) h alone vs 33.1 microg ml(-1) h with omeprazole, P= 0.64; 80% power), maximum plasma concentration (C(max)) (2.04 microg ml(-1) alone vs 2.02 microg ml(-1) with omeprazole, P= 0.97), or half-life (13.4 h alone vs 14.1 h with omeprazole, P= 0.13). CONCLUSIONS: Our results indicate that the use of omeprazole does not significantly affect the pharmacokinetics of imatinib, as opposed to, for example, dasatinib where PPI decreased AUC and C(max) two-fold.


Assuntos
Antineoplásicos/farmacocinética , Omeprazol/farmacologia , Piperazinas/farmacocinética , Inibidores da Bomba de Prótons/farmacologia , Pirimidinas/farmacocinética , Administração Oral , Adulto , Antineoplásicos/metabolismo , Benzamidas , Cromatografia , Feminino , Humanos , Mesilato de Imatinib , Masculino , Espectrometria de Massas , Piperazinas/metabolismo , Pirimidinas/metabolismo
16.
Int J Chron Obstruct Pulmon Dis ; 14: 2681-2695, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31819401

RESUMO

Background: We assessed the cost-effectiveness of single-inhaler fluticasone furoate (FF)/umeclidinium (UMEC)/vilanterol (VI) versus FF/VI or UMEC/VI from a Canadian public healthcare perspective, incorporating data from the IMPACT trial in chronic obstructive pulmonary disease (COPD) (NCT02164513). Methods: Baseline inputs and treatment effects from IMPACT were populated into the validated GALAXY-COPD disease progression model. Canadian unit costs and drug costs (Canadian dollars [C$], 2017) were applied to healthcare resource utilization and treatments. Future costs and health outcomes were discounted at 1.5% annually. Analyses were probabilistic, and outputs included exacerbation rates, costs, and life years (LYs) and quality-adjusted life years (QALYs) gained. Results: Compared with FF/VI and UMEC/VI over a lifetime horizon, the analyses predicted that treatment with FF/UMEC/VI resulted in fewer moderate and severe exacerbations, more LYs and more QALYs gained, with a small incremental cost. The base-case incremental cost-effectiveness ratio (ICER) per QALY gained was C$18,989 (95% confidence interval [CI]: C$14,665, C$25,753) versus FF/VI and C$13,776 (95% CI: C$9787, C$19,448) versus UMEC/VI. FF/UMEC/VI remained cost-effective versus both FF/VI and UMEC/VI in all sensitivity analyses, including in scenario analyses that considered different intervention and comparator discontinuation rates, and treatment effects for subsequent therapy. Conclusion: Treatment with FF/UMEC/VI was predicted to improve outcomes and be a cost-effective treatment option for patients with symptomatic COPD and a history of exacerbations compared with FF/VI or UMEC/VI, in Canada.


Assuntos
Androstadienos/administração & dosagem , Androstadienos/economia , Álcoois Benzílicos/administração & dosagem , Álcoois Benzílicos/economia , Broncodilatadores/administração & dosagem , Broncodilatadores/economia , Clorobenzenos/administração & dosagem , Clorobenzenos/economia , Custos de Medicamentos , Pulmão/efeitos dos fármacos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Doença Pulmonar Obstrutiva Crônica/economia , Quinuclidinas/administração & dosagem , Quinuclidinas/economia , Administração por Inalação , Idoso , Androstadienos/efeitos adversos , Álcoois Benzílicos/efeitos adversos , Broncodilatadores/efeitos adversos , Canadá , Clorobenzenos/efeitos adversos , Ensaios Clínicos Fase III como Assunto , Análise Custo-Benefício , Progressão da Doença , Combinação de Medicamentos , Feminino , Humanos , Pulmão/fisiopatologia , Masculino , Modelos Econômicos , Nebulizadores e Vaporizadores , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Quinuclidinas/efeitos adversos , Recuperação de Função Fisiológica , Fatores de Tempo , Resultado do Tratamento
17.
J Allied Health ; 37(2): 116-20, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18630788

RESUMO

The escalating growth in the development of pharmaceutical drugs has caused the pharmaceutical industry to market drugs directly to consumers. Direct-to-consumer (DTC) advertising has increased immensely in the past 15 years and continues to grow each year. The advantages of DTC advertising include an increase in consumer knowledge, patient autonomy, and possibly providing physicians and pharmacists with up-to-date information about the recent trends in the marketplace. However, there is also an equally notable list of disadvantages, which include concerns about the quality of information provided, loss in physician productivity due to time spent convincing patients that what they want is not in their best interest, and increases in the reimbursement expenditure of the insurers. Because of these conflicting outcomes, the issue of DTC advertising has become controversial. This report offers an overview of DTC advertising and focuses on its effects on physicians, pharmacists, consumers, insurers, the government, and pharmaceutical manufacturers.


Assuntos
Publicidade/métodos , Participação da Comunidade , Pessoal de Saúde , Publicidade/legislação & jurisprudência , Indústria Farmacêutica , Humanos , Reembolso de Seguro de Saúde , Seguro de Serviços Farmacêuticos , Farmacêuticos , Relações Médico-Paciente , Relações Profissional-Paciente , Estados Unidos
18.
Clinicoecon Outcomes Res ; 10: 791-803, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30532570

RESUMO

BACKGROUND: The Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcomes Results (LEADER) clinical trial demonstrated that liraglutide added to standard-of-care (SoC) therapy for type 2 diabetes (T2D) with established cardiovascular disease (CVD) or elevated cardiovascular (CV) risk was associated with lower rates of death from CVD, nonfatal myocardial infarction (MI), or nonfatal stroke than SoC alone. OBJECTIVE: The objective of this study was to assess the cost-effectiveness (CE) and budget impact of liraglutide vs SoC in T2D patients with established CVD or elevated CV risk, over a lifetime horizon from a US managed care perspective. METHODS: A cohort state-transition model (costs and benefits discounted at 3% per year) was used to predict diabetes-related complications and death (CV and all-cause). Events, treatment effects, and discontinuation rates were from LEADER trial; utility and cost data (US$, 2017) were from literature. Sensitivity analysis explored the impact of uncertainty on results. Additionally, a budget impact analysis was conducted to evaluate the financial impact of liraglutide use in this population, with displacement from dulaglutide, assuming a health care plan with 1 million members. RESULTS: Liraglutide patients experienced 6.3% fewer events, had event-related cost-savings of $15,182, gained additional life-years of 0.67 and quality-adjusted life-years (QALYs) of 0.57, and had additional total costs ($60,928) vs SoC. Liraglutide was cost-effective with an incremental CE ratio of $106,749/QALY which was below the willingness-to-pay threshold of $150,000/QALY accepted by the Institute of Clinical and Economic Research. Liraglutide was cost-effective across all sensitivity analyses, except when the hazard ratio for all-cause mortality varied. The budget impact was neutral, with a per-plan-per-year and per-member-per-month cost-savings of $266,334 and $0.02, respectively. CONCLUSION: From a US-managed care perspective, for T2D patients with established CVD or elevated CV risk, liraglutide is a cost-effective and a budget neutral treatment option for health care plans.

19.
Respir Med ; 145: 130-137, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30509701

RESUMO

INTRODUCTION: The cost-effectiveness of long-acting muscarinic antagonist (LAMA) umeclidinium bromide (UMEC) 62.5 µg as add-on therapy to other maintenance COPD treatments is unknown. METHODS: This analysis assessed the cost-effectiveness of the following in COPD: UMEC + fluticasone furoate/vilanterol 100/25 µg (FF/VI); UMEC + fluticasone propionate/salmeterol 250/50 µg (FP/SAL); and UMEC + several alternative choices of inhaled corticosteroid/long-acting ß2-agonist (ICS/LABA). The model was informed with direct and indirect data from previously published studies, with a UK perspective and a lifetime horizon. Sensitivity analyses were also performed. RESULTS: For the lifetime horizon, compared with FF/VI, FP/SAL and ICS/LABAs, addition of UMEC was associated with incremental costs per quality-adjusted life-years (QALY) of £4050, £7210 and £5780, respectively, and incremental costs per life year gain of £3380, £6020 and £4940. All UMEC-containing regimens resulted in numerically lower exacerbation rates versus comparator regimens over a lifetime horizon. CONCLUSIONS: Addition of UMEC to various ICS/LABA treatments was associated with higher cost than ICS/LABA alone, but was cost-effective in most scenarios.


Assuntos
Análise Custo-Benefício , Antagonistas Muscarínicos/administração & dosagem , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Doença Pulmonar Obstrutiva Crônica/economia , Quinuclidinas/administração & dosagem , Quinuclidinas/economia , Agonistas de Receptores Adrenérgicos beta 2/administração & dosagem , Androstadienos/administração & dosagem , Preparações de Ação Retardada , Progressão da Doença , Quimioterapia Combinada/economia , Feminino , Fluticasona/administração & dosagem , Humanos , Quimioterapia de Manutenção , Masculino , Pessoa de Meia-Idade , Antagonistas Muscarínicos/economia , Resultado do Tratamento
20.
Adv Ther ; 34(9): 2163-2172, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28875459

RESUMO

INTRODUCTION: Chronic obstructive pulmonary disease is associated with a high healthcare resource and cost burden. Healthcare resource utilization was analyzed in patients with symptomatic chronic obstructive pulmonary disease at risk of exacerbations in the FULFIL study. Patients received either once-daily, single inhaler triple therapy (fluticasone furoate/umeclidinium/vilanterol) 100 µg/62.5 µg/25 µg or twice-daily dual inhaled corticosteroid/long-acting beta agonist therapy (budesonide/formoterol) 400 µg/12 µg. METHODS: FULFIL was a phase III, randomized, double-blind, double-dummy, multicenter study. Unscheduled contacts with healthcare providers were recorded by patients in a daily electronic diary; the costs of healthcare resource utilization were calculated post hoc using UK reference costs. RESULTS: Over 24 weeks, slightly fewer patients who received fluticasone furoate/umeclidinium/vilanterol (169/911; 18.6%) required contacts with healthcare providers compared with budesonide/formoterol (180/899; 20.0%). Over 52 weeks in an extension population, fewer patients who received fluticasone furoate/umeclidinium/vilanterol required unscheduled contacts with healthcare providers compared with budesonide/formoterol (25.2% vs. 32.7%). Non-drug costs per treated patient per year were lower in the fluticasone furoate/umeclidinium/vilanterol group than the budesonide/formoterol group over 24 and 52 weeks (£653.80 vs. £763.32 and £749.22 vs. £988.03, respectively), with the total annualized cost over 24 weeks being slightly greater for fluticasone furoate/umeclidinium/vilanterol than budesonide/formoterol (£1,289.35 vs. £1,267.45). CONCLUSIONS: This healthcare resource utilization evidence suggests that, in a clinical trial setting over a 24- or 52-week timeframe, non-drug costs associated with management of a single inhaler fluticasone furoate/umeclidinium/vilanterol are lower compared with twice-daily budesonide/formoterol. TRIAL REGISTRATION: ClinicalTrials.gov number: NCT02345161. FUNDING: GSK.


Assuntos
Broncodilatadores/economia , Broncodilatadores/uso terapêutico , Nebulizadores e Vaporizadores/economia , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Doença Pulmonar Obstrutiva Crônica/economia , Corticosteroides/economia , Corticosteroides/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Androstadienos/economia , Androstadienos/uso terapêutico , Budesonida/economia , Budesonida/uso terapêutico , Método Duplo-Cego , Feminino , Fumarato de Formoterol/economia , Fumarato de Formoterol/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Reino Unido
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