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1.
Cancer ; 124(10): 2104-2114, 2018 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-29505670

RESUMO

BACKGROUND: The current study was performed to describe patient characteristics, treatment patterns, survival, health care resource use (HRU), and costs among older women in the United States with advanced (American Joint Committee on Cancer stage III/IV) triple-negative breast cancer (TNBC) in the Surveillance, Epidemiology, and End Results (SEER)-Medicare database. METHODS: Women who were aged ≥66 years at the time of diagnosis and diagnosed with advanced TNBC between January 1, 2007, and January 1, 2011, in the SEER-Medicare database and who were followed for survival through December 31, 2013, were eligible. Patient demographic and clinical characteristics at the time of diagnosis, subsequent treatment patterns, and survival outcomes were analyzed. HRU and costs for the first 3 months after diagnosis, the last 3 months of life, and the time in between are summarized. All analyses were stratified by American Joint Committee on Cancer stage of disease. RESULTS: There were 1244 patients newly diagnosed with advanced TNBC; the majority were aged ≥75 years (61% with stage III disease and 57.4% with stage IV disease) and white (>70% of patients in both disease stage groups). The most common treatment approaches were surgery combined with chemotherapy for patients for stage III disease (50.6%) and chemotherapy alone or with radiotherapy for patients with stage IV disease (31.3%). Diverse chemotherapy regimens were administered for each line of therapy; nevertheless, the medications used were consistent with national guidelines. Patients with stage III and stage IV disease were found to have a similar mean number of hospitalizations and outpatient visits, but mean monthly costs were greater for patients with stage IV disease at all 3 time points. The mean cost per patient-month (in 2013 US dollars) was $4810 for patients with stage III disease and $9159 for patients with stage IV disease. CONCLUSIONS: Among older women with advanced TNBC, significant treatment variations and considerable HRU and costs exist. Further research is needed to find effective treatments with which to reduce the clinical and economic burden of this disease. Cancer 2018;124:2104-14. © 2018 American Cancer Society.


Assuntos
Efeitos Psicossociais da Doença , Recursos em Saúde/estatística & dados numéricos , Medicare/estatística & dados numéricos , Neoplasias de Mama Triplo Negativas/economia , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimiorradioterapia Adjuvante/economia , Quimiorradioterapia Adjuvante/estatística & dados numéricos , Quimioterapia Adjuvante/economia , Quimioterapia Adjuvante/estatística & dados numéricos , Redução de Custos , Feminino , Custos de Cuidados de Saúde/estatística & dados numéricos , Humanos , Mastectomia/economia , Mastectomia/estatística & dados numéricos , Medicare/economia , Estadiamento de Neoplasias , Estudos Retrospectivos , Programa de SEER/estatística & dados numéricos , Análise de Sobrevida , Taxa de Sobrevida , Resultado do Tratamento , Neoplasias de Mama Triplo Negativas/epidemiologia , Neoplasias de Mama Triplo Negativas/patologia , Neoplasias de Mama Triplo Negativas/terapia , Estados Unidos/epidemiologia
2.
BMC Urol ; 18(1): 77, 2018 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-30189902

RESUMO

BACKGROUND: This analysis estimated the number needed to treat with enzalutamide versus bicalutamide to achieve one additional patient with chemotherapy-naïve metastatic castration-resistant prostate cancer who would obtain clinical benefit regarding progression-free survival, radiographic progression-free survival, or no prostate-specific antigen progression at 1 and 2 years following treatment initiation. METHODS: Clinical event rates were obtained from the STRIVE (NCT01664923) and TERRAIN (NCT01288911) trials, and the number needed to treat was the inverse of the absolute rate difference between the event rates of enzalutamide and bicalutamide. The 95% Confidence Interval of the number needed to treat was derived from the 95% Confidence Interval of the event rate difference. RESULTS: Using STRIVE data (patients with metastatic disease: n = 128 enzalutamide; n = 129 bicalutamide) comparing enzalutamide with bicalutamide at 1 and 2 years, the numbers needed to treat to achieve one additional patient with chemotherapy-naïve metastatic castration-resistant prostate cancer with progression-free survival were 2.0 and 2.8, respectively; with radiographic progression-free survival, 2.6 and 3.0, respectively; and without prostate-specific antigen progression, 1.8 and 2.4, respectively. Using TERRAIN data (n = 184 enzalutamide; n = 191 bicalutamide) comparing enzalutamide with bicalutamide at 1 and 2 years, the numbers needed to treat to achieve one additional patient with progression-free survival were 4.3 and 3.7, respectively; with radiographic progression-free survival, 10.0 and 2.8, respectively; and without prostate-specific antigen progression, 2.1 and 3.2, respectively. CONCLUSIONS: The combined data from TERRAIN and STRIVE demonstrated that treating chemotherapy-naïve metastatic castration-resistant prostate cancer with enzalutamide leads to more patients without clinical progression at 1 and 2 years than with bicalutamide. TRIAL REGISTRATION: STRIVE (NCT01664923; registration date: August 10, 2012) and TERRAIN (NCT01288911; registration date: February 1, 2011).


Assuntos
Antagonistas de Androgênios/uso terapêutico , Anilidas/uso terapêutico , Nitrilas/uso terapêutico , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Compostos de Tosil/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa
3.
BMC Urol ; 18(1): 84, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-30285696

RESUMO

It has been highlighted that in the original article [1] there was a typesetting mistake in the Results - NNT in Strive section. This Correction article states the incorrect and correct sentence.

4.
BMC Cancer ; 15: 771, 2015 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-26498125

RESUMO

BACKGROUND: The prognosis for adult patients with Ph(-) B-precursor acute lymphoblastic leukaemia (ALL) who are refractory to treatment or experience relapse (R/R), is poor; over 90% of these patients die from the disease, typically within a few months. While there are some national guidelines published for the treatment of adult patients with ALL, and local working group recommendations do exist, there is very little detail and no preferred treatment regimens for adult patients with R/R Ph(-) B-precursor ALL. The aim of this study was to describe current real-world clinical practice in Europe for the management and treatment of adult R/R Ph(-) B-precursor ALL. METHODS: A web-based, double-blind survey was conducted in November/December 2013 in France, Germany, Italy, Spain, and the UK. The survey was developed following consultation with specialist clinicians and a critical review of published literature. Eligible clinicians (15 per country) were board-certified in haemato-oncology or haematology; had at least 4 years of experience in their current role and had treated at least five patients with adult ALL in the 36 months before the survey, including at least one with R/R Ph(-) B-precursor ALL. RESULTS: Clinicians across the five countries consulted 16 guidelines and local working group recommendations for the diagnosis and treatment of R/R Ph(-) B-precursor ALL. Thirty three regimens for salvage therapy were reported; the most frequently cited was augmented hyper-CVAD (15%), with vincristine the most commonly used agent. Salvage therapy regimens involved a range of agents, and most respondents reported using at least one cytotoxic agent; across respondents 10 different cytotoxic agents were cited. All respondents reported that toxicity was common for the regimens they used to treat R/R Ph(-) B-precursor ALL. CONCLUSIONS: This study provides evidence of current management and treatment patterns of R/R Ph(-) B-precursor ALL in the real-world clinical practice in Europe. The approach to the treatment of R/R Ph(-) B-precursor ALL is heterogeneous, reflecting the lack of any clearly superior chemotherapeutic option, thus it appears that clinicians are trying a wide variety of therapies. These findings show a clear need for effective, tolerable treatments for R/R Ph(-) B-precursor ALL.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Terapia de Salvação/métodos , Inquéritos e Questionários , Adulto , Antineoplásicos/uso terapêutico , Estudos Transversais , Método Duplo-Cego , Europa (Continente) , Feminino , Pesquisa sobre Serviços de Saúde , Humanos , Internet , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Guias de Prática Clínica como Assunto , Padrões de Prática Médica , Leucemia-Linfoma Linfoblástico de Células Precursoras/diagnóstico , Prognóstico
5.
Health Qual Life Outcomes ; 13: 181, 2015 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-26573610

RESUMO

BACKGROUND: To date, reliable and comprehensive health-related quality of life data for patients with relapsed or refractory B-precursor acute lymphoblastic leukemia (ALL) have not been collected in clinical trials of the disease, and no utility studies have been published. The purpose of this study was to define and validate health states experienced by adults with relapsed/refractory B-precursor ALL, and to assign utility values to these health states using time-trade off methodology. METHODS: This study was conducted in the UK in three phases. In the first phase, five health state descriptions were developed based on a recent clinical trial. The second phase validated the health state descriptions with clinicians and patients with experience of relapsed/refractory B-precursor ALL. The third phase involved prospective health state valuation using time-trade off methodology in a sample of the general public. The study was approved by the UK National Health Service Research Ethics Committee. RESULTS: In total, 123 participants were recruited and included in the final analysis; all participants gave written, informed consent. Complete remission was the most preferred health state (mean utility [SEM], 0.86 [0.01]), followed by complete remission with partial hematological recovery (with minimal risk of bleeding or developing infection) (0.75 [0.02]); aplastic bone marrow (0.59 [0.02]); partial remission (0.50 [0.03]); and progressive disease (0.30 [0.04]). CONCLUSIONS: This is the first study to report utility values for health states associated with relapsed/refractory B-precursor ALL. It was designed and conducted to align with NICE guidance on alternative methods for generating health state utility values when EQ-5D data are either unavailable or inappropriate. These utilities can be applied in future cost-effectiveness analyses of treatment for relapsed/refractory B-precursor ALL.


Assuntos
Nível de Saúde , Preferência do Paciente/psicologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/psicologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Psicometria/instrumentação , Qualidade de Vida/psicologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Reino Unido , Adulto Jovem
6.
Pain Med ; 15(2): 225-32, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24400921

RESUMO

OBJECTIVE: Many patients with advanced cancer frequently use analgesic medications for their pain. Systematically assessing and quantifying changes in analgesic use remains challenging in the clinical trials setting. Currently, there is no sensitive scale for categorizing the intensity of analgesic medications to understand the reasons for changes in patient-reported pain. We assessed whether the Analgesic Quantification Algorithm (AQA) is more sensitive than the World Health Organization Analgesic Treatment Ladder (WHO-AL) for quantifying analgesic medication use among patients with advanced cancer. METHODS: An expanded equianalgesic potency conversion table was developed to establish oral morphine equivalents for use in the AQA. Categories of opioid use were selected to increase sensitivity within the higher dose range of opioids and to better capture increases in analgesic dose intensity. The resulting 8-point AQA scale corresponds to no analgesic use, non-opioid analgesics, weak opioids only, ≤75 mg, >75-150 mg, >150-300 mg, >300-600 mg, and >600 mg oral morphine equivalents per day. Baseline and 6-month analgesic data from a clinical trial of cancer patients were compared for each instrument. RESULTS: At both time points, the 4-point WHO-AL demonstrated a ceiling effect with a clustering of patients in the strong opioid category, whereas the AQA resulted in a distribution of scores throughout the eight categories, including the five strong opioid categories. CONCLUSIONS: The AQA represents a more sensitive measure of analgesic use than the WHO-AL, and may better determine whether changes in pain assessments in clinical trials are due to the intervention or changes in analgesic use.


Assuntos
Algoritmos , Analgésicos Opioides/uso terapêutico , Dor/tratamento farmacológico , Humanos , Neoplasias/complicações , Dor/etiologia , Medição da Dor/métodos
7.
J Med Econ ; 27(1): 789-795, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38727527

RESUMO

AIMS: With recent European Union marketing authorization, tabelecleucel is the first off-the-shelf, allogeneic Epstein-Barr virus (EBV)-specific T-cell immunotherapy approved for the treatment of relapsed/refractory EBV-positive post-transplant lymphoproliferative disease (EBV+ PTLD). In the absence of a control arm, real-world evidence can provide a comparative benchmark for single-arm studies in ultra-rare populations. This study assessed the treatment effect of tabelecleucel in the single-arm phase 3 ALLELE study (NCT03394365) versus a treatment group from a multinational, multicenter retrospective chart review study (RS002) of patients with EBV+ PTLD. METHODS: In ALLELE, patients had disease relapsed/refractory to rituximab ± chemotherapy and received tabelecleucel 2x106 cells/kg on days 1, 8, and 15 in 35-day cycles. Patients in RS002 had disease relapsed/refractory to rituximab ± chemotherapy and received next line of systemic therapy between January 2000 and December 2018. Propensity score-based standardized mortality/morbidity ratio weighting was used to achieve balance between treatment and comparator arms. Kaplan-Meier estimators and Cox regression models were used to compare overall survival (OS) in the re-weighted sample. RESULTS: 30 patients (n = 14 hematopoietic cell transplant [HCT], n = 16 solid organ transplant [SOT]) from ALLELE (data cutoff: November 2021) and 84 patients (n = 36 HCT, n = 48 SOT) from RS002 (data lock: January 2021) were included. Median time from diagnosis to first tabelecleucel dose (ALLELE) or start date of next line of systemic therapy (RS002) was 3.6 months. Tabelecleucel was associated with a substantial OS benefit compared with current treatment, with an unadjusted HR of 0.47 (95% confidence interval [CI] 0.25-0.88) and adjusted HR of 0.37 (95% CI 0.20-0.71) when using the start date of the next line of therapy as the index date. Sensitivity analyses yielded consistent results. CONCLUSIONS: In this study of real-world data, tabelecleucel was associated with an OS benefit among patients with R/R EBV+ PTLD for whom there is high unmet need.


Assuntos
Infecções por Vírus Epstein-Barr , Transplante de Células-Tronco Hematopoéticas , Transtornos Linfoproliferativos , Humanos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transtornos Linfoproliferativos/etiologia , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Adulto , Infecções por Vírus Epstein-Barr/complicações , Transplante de Órgãos/efeitos adversos , Herpesvirus Humano 4/isolamento & purificação , Herpesvirus Humano 4/genética , Rituximab/uso terapêutico , Estimativa de Kaplan-Meier
8.
Bone Marrow Transplant ; 59(1): 52-58, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37865719

RESUMO

Epstein-Barr virus-positive (EBV+) post-transplant lymphoproliferative disease (PTLD) is an ultra-rare and aggressive condition that may occur following allogeneic hematopoietic cell transplant (HCT) due to immunosuppression. Approximately half of EBV+ PTLD cases are relapsed or refractory (R/R) to initial rituximab-containing therapy. There are limited treatment options and no standard of care for patients with R/R EBV+ PTLD, and little is known about their treatment history and outcomes. We performed a multinational, multicenter, retrospective chart review of patients with R/R EBV+ PTLD following HCT to describe patients' demographic and disease characteristics, treatment history, and overall survival (OS) from rituximab failure. Among 81 patients who received initial treatment with rituximab as monotherapy (84.0%) or in combination with chemotherapy (16.0%), median time from HCT to PTLD diagnosis was 3.0 months and median OS was 0.7 months. Thirty-six patients received a subsequent line of treatment. The most frequent causes of death were PTLD (56.8%), graft-versus-host disease (13.5%) and treatment-related mortality (10.8%). In multivariate analysis, early PTLD onset and lack of response to initial treatment were associated with mortality. This real-world study demonstrates that the prognosis of patients with R/R EBV+ PTLD following HCT remains poor, highlighting the urgent unmet medical need in this population.


Assuntos
Infecções por Vírus Epstein-Barr , Transplante de Células-Tronco Hematopoéticas , Transtornos Linfoproliferativos , Humanos , Rituximab/uso terapêutico , Herpesvirus Humano 4 , Infecções por Vírus Epstein-Barr/tratamento farmacológico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Estudos Retrospectivos , Transtornos Linfoproliferativos/tratamento farmacológico , Transtornos Linfoproliferativos/etiologia
9.
Qual Life Res ; 22(5): 1105-12, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22678353

RESUMO

PURPOSE: Evaluate reliability and validity of the Functional Assessment of Cancer Therapy-Hepatobiliary (FACT-Hep) questionnaire and its derivative FACT Hepatobiliary Symptom Indexes (FHSI-18 and FHSI-8) in people with metastatic pancreatic cancer. METHODS: Self-reported questionnaire data from a randomized controlled Phase II study evaluating the efficacy and safety of conatumumab (AMG 655), ganitumab (AMG 479) or placebo combined with gemcitabine were evaluated. The following were assessed: internal consistency, using Cronbach's α; discriminant validity, comparing baseline patient-reported outcomes (PRO) scores across Eastern Cooperative Oncology Group (ECOG) performance status (PS) levels; and ability to detect change, comparing change from baseline PRO score at each cycle across PS and tumour response groups. RESULTS: The analysis included 96 patients. All scale scores demonstrated good internal consistency (Cronbach's α > 0.7) and discriminant validity. Baseline scores were significantly poorer among patients with PS = 1 versus patients with PS = 0 (e.g. difference in FACT-Hep total score -17.27; p < 0.001). Ability to detect change was established for Cycles 2/3 versus baseline; PRO scores reduced in the PS-worsened group versus the PS-stable group (e.g. difference in FACT-Hep total score -24.29; p < 0.001). All PRO scale scores showed significant decline for progressive disease versus stable disease (e.g. difference in FACT-Hep total score -12.58; p = 0.004). Changes on the FHSI-18 and FHSI-8 scales were similar in magnitude whether ECOG improved or worsened. CONCLUSIONS: FACT-Hep detects change and is a reliable and valid instrument for measuring health-related quality of life in patients with metastatic pancreatic cancer.


Assuntos
Nível de Saúde , Neoplasias Pancreáticas/psicologia , Avaliação de Resultados da Assistência ao Paciente , Qualidade de Vida , Inquéritos e Questionários , Avaliação de Sintomas , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/tratamento farmacológico , Neoplasias Pancreáticas/tratamento farmacológico , Psicometria , Ensaios Clínicos Controlados Aleatórios como Assunto , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Gencitabina
10.
Neurol Ther ; 12(6): 1961-1979, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37682512

RESUMO

INTRODUCTION: Much of the current literature on treatment patterns and disability progression in multiple sclerosis (MS) does not distinguish between the relapsing-remitting and progressive subtypes (including primary [PPMS] and secondary progressive MS [SPMS]), or between active/nonactive disease. Current treatment options for progressive MS are limited, with only one approved product for PPMS and none specifically for nonactive SPMS. Here we report treatment patterns, disability progression, and unmet needs among patients with active and nonactive PPMS and SPMS. METHODS: The annual, cross-sectional survey from the Adelphi Disease Specific Program was used to collect physician-reported data on US adult patients with PPMS and SPMS, including active and nonactive disease. Treatment patterns (including the proportion of patients who were untreated with a disease-modifying therapy [DMT]), disability progression, and unmet need are described from 2016 to 2021. RESULTS: Data were collected for 2067 patients with progressive MS (PPMS, 1583; SPMS, 484). A substantial proportion of patients were untreated across all groups, and this was highest for nonactive PPMS (~ 43%). The proportion of untreated patients generally declined over time but remained high in 2018-2021 (~ 10-38%). Among treated patients, the proportion receiving infusions increased over time to ~ 34-46%, largely driven by ocrelizumab use after approval. Disability progression was reported for most patients (> 50%), including many who were receiving a DMT. Across all disease subtypes, when physicians were asked about the greatest unmet need with current DMTs, they most frequently cited effectiveness (~ 63-87%), and specifically slowing disease progression (~ 32-59%). CONCLUSIONS: This analysis of physician-reported data reveals that patients with progressive MS, particularly those with nonactive disease, frequently remain untreated or continue to decline despite treatment with available DMTs. Thus there is an enduring need for safe and effective treatments for this underserved population.

11.
Adv Ther ; 40(3): 1267-1281, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36681739

RESUMO

INTRODUCTION: Following hematopoietic stem cell transplantation or solid organ transplantation, patients are at risk of developing Epstein-Barr virus-positive post-transplant lymphoproliferative disease (EBV+ PTLD), which is an ultra-rare and potentially lethal hematologic malignancy. Common treatments for EBV+ PTLD include rituximab alone or combined with chemotherapy. Given specific considerations for this population, including severity of the underlying condition requiring transplant, the rigors of the transplant procedure, as well as risks to the transplanted organ, there is a group of patients with EBV+ PTLD for whom chemotherapy may be inappropriate; however, there is limited information characterizing these patients. This study aimed to reach expert consensus on the key characteristics of patients for whom chemotherapy may be inappropriate in a real-world setting. METHODS: A two-round modified Delphi study was conducted to reach consensus among clinicians with expertise treating EBV+ PTLD. Articles identified in a targeted literature review guided the development of round 1 and 2 topics and related statements. The consensus threshold for round 1 statements was 75.0%. If consensus was achieved in round 1, the statement was not discussed further in round 2. The consensus thresholds for round 2 were moderate (62.5-75.0%), strong (87.5%), or complete (100.0%). RESULTS: The panel was composed of a total of eight clinicians (seven hematologists/hemato-oncologists) from six European countries. The panel generated a final list of 43 consensus recommendations on the following topics: terminology used to describe patients for whom chemotherapy may be inappropriate; demographic characteristics; organ transplant characteristics; comorbidities that preclude the use of chemotherapy; EBV+ PTLD characteristics; and factors related to treatment-related mortality and morbidity. CONCLUSIONS: This modified Delphi panel successfully achieved consensus on key topics and statements that characterized patients with EBV+ PTLD for whom chemotherapy may be inappropriate. These recommendations will inform clinicians and aid in the treatment of EBV+ PTLD.


Assuntos
Infecções por Vírus Epstein-Barr , Transtornos Linfoproliferativos , Humanos , Herpesvirus Humano 4 , Infecções por Vírus Epstein-Barr/complicações , Infecções por Vírus Epstein-Barr/tratamento farmacológico , Consenso , Técnica Delphi , Transtornos Linfoproliferativos/tratamento farmacológico , Transtornos Linfoproliferativos/etiologia , Transtornos Linfoproliferativos/epidemiologia
12.
J Drug Assess ; 11(1): 1-11, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35693477

RESUMO

A common chemotherapy regimen in post-transplant lymphoproliferative disease (PTLD) following solid organ transplants (SOT) is cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP). This study reviews the quantitative evidence for long-term consequences associated with components of CHOP identified from the Children's Oncology Group Long-Term Follow-Up Guidelines. Cited references were screened using prespecified criteria (English, systematic review, randomized controlled trial n > 100, observation study n > 100, case series n > 20). Relevant data were extracted and synthesized. Of 61 studies, 66% were retrospective cohort studies, 28% were in the US, and 95% enrolled pediatric patients. No study focused specifically on the CHOP regimen. Long-term consequences for CHOP components observed in >3 studies included cardiac toxicity (n = 14), hormone deficiencies/infertility (n = 14), secondary leukemia (n = 7), osteonecrosis (n = 6), and bladder cancer (n = 4). These effects are significant, impact a high percentage of patients, and occur as early as one year after treatment. Although none of the studies focused specifically on the CHOP regimen, 30%, 23%, and 15% evaluated alkylating agents (e.g. cyclophosphamide), anthracyclines (e.g. doxorubicin), and corticosteroids (e.g. prednisone), respectively. All three product classes had a dose-dependent risk of long-term consequences with up to 13.2-fold, 27-fold, 16-fold, 14.5-fold, and 6.2-fold increase in risk of heart failure, early menopause, secondary leukemia, bladder cancer, and osteonecrosis, respectively. Lymphoma patients had significantly elevated risks of cardiac toxicity (up to 12.2-fold), ovarian failure (up to 3.8-fold), and osteonecrosis (up to 6.7-fold). No studies were found in PTLD or SOT. Safe and effective PTLD treatments that potentially avoid these long-term consequences are urgently needed.

13.
Neurol Ther ; 11(2): 725-739, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35266103

RESUMO

INTRODUCTION: Fatigue is one of the most common and debilitating symptoms of multiple sclerosis (MS) but is challenging to assess and has not been comprehensively characterized in patients with progressive MS. This study aimed to (1) obtain qualitative evidence from patients with progressive MS to characterize MS-related fatigue concepts and their impacts on health-related quality of life (HRQoL), and (2) evaluate the conceptual frameworks of existing MS-specific fatigue patient-reported outcome (PRO) instruments using study data to determine the most suitable PRO instrument in this population. METHODS: Qualitative interviews were conducted with 30 US participants with confirmed progressive MS and fatigue in the last 6 months to assess their MS-related fatigue. Data were compared with concepts in existing PRO instruments to evaluate their relevance in progressive MS. RESULTS: Physical and mental concepts of fatigue were identified and characterized distinctly from patients with progressive MS. Most patients characterized fatigue as occurring daily and lasting several hours, with negative impacts on HRQoL. Concept mapping to existing MS-specific fatigue PRO instruments supported the Fatigue Severity Impact Questionnaire-Relapsing Multiple Sclerosis (FSIQ-RMS) as the most suitable existing option for assessing fatigue in patients with progressive MS, as it separates physical and mental aspects of fatigue and includes every highly endorsed concept reported by the interviewed patients. CONCLUSIONS: This qualitative study identified meaningful physical and mental fatigue concepts in patients with progressive MS and preliminarily supports the use of the FSIQ-RMS for this population. More research is needed to fully validate this instrument for progressive MS.

14.
J Med Econ ; 25(1): 230-237, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35068310

RESUMO

AIMS: Accurately estimating mean survival after solid organ transplant (SOT) is crucial for efficient healthcare resource allocation decisions. However, registry-based post-transplant recipient survival estimates vary greatly and are incomplete. Often, the methods used in lifetime survival extrapolation may not fit complex transplant data and therefore alternative methods are required. We aimed to explore the flexible cubic spline methodology as a meaningful alternative for estimating lifetime survival following SOT. METHODS: Survival analyses were conducted in kidney, liver, heart, and lung transplant recipients. Mean survival was estimated using flexible cubic splines on the hazard scale fitted with three knots, based on where hazards changed direction, clinical advice, and best-fit curve using Akaike and Bayesian information criterion. The tail was extrapolated when data were no longer available. Extrapolation tails were compared with general population mortality, using age-matched life table hazards, and the highest hazards were taken at all times. RESULTS: We found that mean survival post-transplant was longest for kidney transplants (US: 22.79 years; UK: 26.58 years), followed by liver (US: 20.90 years; UK: 20.38 years), heart (US: 14.82 years; UK: 15.85 years), and lung (US: 9.28 years; UK: 9.21 years). A sensitivity analysis using two knots found differences in survival ranging from -1.30 to +4.83 years across SOTs examined. LIMITATIONS: This study does not represent individual patient survival, survival by age groups, multiple-organ transplants, or assess factors that may impact overall or organ survival. CONCLUSIONS: Our study estimates reflect real-world survival following SOTs and demonstrate the importance of including long-term hazards in survival estimations. These lifetime survival estimates can be used by decision-makers in situations where means are preferred over medians (e.g. population projections, budgetary estimates, and cost-effectiveness models) and can thus offer a meaningful alternative to the estimates used and accepted in current practice.


Assuntos
Transplante de Rim , Transplante de Órgãos , Teorema de Bayes , Humanos , Análise de Sobrevida , Reino Unido/epidemiologia
15.
J Med Econ ; 24(1): 620-627, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33851571

RESUMO

AIMS AND OBJECTIVES: Patients diagnosed with post-transplant lymphoproliferative disease (PTLD) experience high mortality within the first 2 years of diagnosis; however, few data exist on the economic burden of PTLD in these patients. We determined the healthcare resource utilization (HRU) and cost burden of post-kidney transplant PTLD and evaluated how these differ by survival status. MATERIALS AND METHODS: Utilizing data from the United States Renal Data System and the Scientific Registry of Transplant Recipients, we identified 83,818 Medicare-covered kidney transplant recipients between 2007 and 2016, of which 347 had at least one Medicare claim during the first year after diagnosis of PTLD. We tabulated Medicare Part A and Part B and calculated per patient-year (PPY) costs. RESULTS: Patients diagnosed with PTLD in the first year post-transplant had Part A + B costs of $222,336 PPY, in contrast with $83,546 PPY in all kidney transplants. Post-transplant costs in the first year of PTLD diagnosis were similar regardless of the year of diagnosis. Cost burden for PTLD patients who died within 2 years of diagnosis was >3.3 times higher than PTLD patients still alive after 2 years. Of those who died within 2 years, the majority died within 6 months and costs were highest for these patients, with almost 7 times higher costs than PTLD patients who were still alive after 2 years. LIMITATIONS: Medicare costs were the only costs examined in this study and may not be representative of other costs incurred, nor be generalizable to other insured populations. Patients were only Medicare eligible for 3 years after transplant unless aged ≥62 years, therefore any costs after this cut-off were not included. CONCLUSIONS: PTLD represents a considerable HRU and cost burden following kidney transplant, and the burden is most pronounced in patients who die within 6 months.


Assuntos
Transplante de Rim , Transtornos Linfoproliferativos , Idoso , Humanos , Medicare , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Estados Unidos
16.
J Manag Care Pharm ; 16(9): 693-702, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21067255

RESUMO

BACKGROUND: Patients with bone metastasis secondary to prostate or breast cancer or multiple myeloma are predisposed to skeletal-related events (SREs), such as surgery or radiation to the bone, pathologic fracture, and spinal cord compression. Inpatient costs of these and other SREs represent an estimated 49%-59% of total costs related to SREs. However, information on payer costs for hospitalizations associated with SREs is limited, especially for costs associated with specific SREs by tumor type. OBJECTIVE: To examine costs from a payer perspective for SRE-associated hospitalizations among patients with multiple myeloma or bone metastasis secondary to prostate or breast cancer. METHODS: Patients with SRE hospitalizations were selected from the MarketScan commercial and Medicare databases (January 1, 2003, through June 30, 2009). Sampled patients had at least 2 medical claims with primary or secondary ICD-9-CM diagnosis codes for prostate cancer, breast cancer, or multiple myeloma and at least 1 subsequent hospitalization with principal diagnosis or procedure codes indicating bone surgery, pathologic fracture, or spinal cord compression. For patients with prostate cancer or breast cancer, a diagnosis code for bone metastasis was also required. If secondary diagnoses or procedure codes for SREs were present in the claim, they were used to more precisely identify the type of SRE for which the patient was treated, resulting in 3 mutually exclusive categories: spinal cord compression with or without pathologic fracture and/or surgery to the bone; pathologic fracture with or without surgery to the bone; and only surgery to the bone. Related readmissions within 30 days of a previous SRE-associated hospitalization date of discharge were excluded to minimize the risk of underestimating costs. Mean health plan payments per hospitalization, measured as net reimbursed amounts paid by the health plan to a hospital after subtracting patient copayments and deductibles, were analyzed by cancer type and type of SRE. RESULTS: A total of 555 patients contributed 572 hospitalizations that met the study criteria for prostate cancer, 1,413 patients contributed 1,542 hospitalizations for breast cancer, and 1,361 patients contributed 1,495 hospitalizations for multiple myeloma. The mean age range was 61 to 72 years, and the mean length of stay per admission was 5.9 to 11.6 days across the 3 tumor types. The ranges of mean health plan payment per hospital admission across tumor types were $43,691-$59,854 for spinal cord compression, with or without pathologic fracture and/or surgery to the bone; $22,390-$26,936 for pathologic fracture without spinal cord compression, with or without surgery to the bone; and $31,016-$42,094 for surgery to the bone without pathologic fracture or spinal cord compression. CONCLUSIONS: The inpatient costs associated with treating SREs are significant from a payer perspective. Our study used a systematic process for patient selection and mutually exclusive categorization by SRE type and provides a per episode estimate of the inpatient financial impact of cancer related SREs assessed in this study from a third-party payer perspective.


Assuntos
Neoplasias Ósseas/secundário , Osso e Ossos/cirurgia , Fraturas Espontâneas/cirurgia , Custos de Cuidados de Saúde , Mieloma Múltiplo/complicações , Compressão da Medula Espinal/terapia , Adulto , Idoso , Neoplasias Ósseas/complicações , Neoplasias da Mama/patologia , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/patologia
17.
J Med Econ ; 23(10): 1159-1167, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32643493

RESUMO

AIMS: Healthcare resource utilization (HRU) and costs in post-transplant lymphoproliferative disease (PTLD) patients following allogeneic hematopoietic stem cell transplant (HCT) were evaluated in the USA. METHODS: MarketScan Commercial and Medicare Supplemental database claims from 01 July 2010 to 31 December 2017 were analyzed. Patients eligible for analysis received allogeneic HCT between 01 January 2011 to 31 December 2015, had ≥6 months of continuous enrollment before HCT, and had ≥1 claim for PTLD or ≥1 inpatient or ≥2 outpatient claims for a clinically-relevant lymphoma within 1 year following HCT (PTLD index = first claim of diagnosis). Patients with clinically-relevant lymphomas within 6 months before HCT were excluded. HRU and total paid amounts were assessed from the week before the HCT through 1-day pre-PTLD index (HCT to PTLD) and monthly from PTLD index through 1-year post-PTLD index. HRU is reported as mean (SD). Results were also provided by survival status. RESULTS: Overall, 92 patients were eligible for analysis. From HCT to PTLD, 98.9% of patients were hospitalized, with 1.7 (1.2) hospitalizations/patient. The average length of stay was 25.3 (22.2) days/patient. From HCT to PTLD, 98.9% of patients had outpatient services with 233.7 (261.1) services/patient and 91.3% of patients had a prescription fill with 32.9 (26.0) prescriptions/patient. In the first month post-PTLD index, 51.2% of patients were hospitalized. Mean paid amounts were $399,470/patient (range $7542-$1.7 M) from HCT to PTLD. Cumulative mean paid amounts 1-year post-PTLD were $429,043/patient. Total cost/patient/month was ∼7 times higher in patients who died (n = 49; $232,591) than those who lived (n = 43; $33,677). Costs were mainly driven by hospitalizations. LIMITATIONS: Limitations include those inherent to retrospective analyses (i.e. miscoding, lack of clinical detail). CONCLUSIONS: HRU and costs from HCT to PTLD were high and more than doubled within 1-year post-PTLD. PTLD patients who died had ∼7 times higher costs than those who lived, driven by hospitalizations. Effective treatments are needed to reduce the burden of PTLD.


Assuntos
Gastos em Saúde/estatística & dados numéricos , Recursos em Saúde/economia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transtornos Linfoproliferativos/economia , Transtornos Linfoproliferativos/etiologia , Adulto , Idoso , Comorbidade , Feminino , Recursos em Saúde/estatística & dados numéricos , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Humanos , Revisão da Utilização de Seguros , Transtornos Linfoproliferativos/mortalidade , Masculino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Estudos Retrospectivos , Fatores Socioeconômicos , Estados Unidos
18.
Oncol Ther ; 8(2): 299-310, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33052502

RESUMO

INTRODUCTION: There are no validated patient-reported outcome (PRO) instruments for Epstein-Barr virus-driven post-transplant lymphoproliferative disease (EBV+ PTLD). The aim of this study was to assess the content applicability for three frequently used PRO instruments from the perspective of patients with EBV+ PTLD. METHODS: A moderated focus group comprising adult patients with EBV+ PTLD was conducted using a concept confirmation and an open-ended concept elicitation approach. The domains of the EuroQoL Group-5 Dimension (EQ-5D) instrument, Short Form Health Survey-Version 2 (SF-36v2) questionnaire, and Functional Assessment of Chronic Illness Therapy-Lymphoma (FACT-LYM) questionnaire were discussed. The concept elicitation portion was a general discussion of symptoms and patient burden of EBV+ PTLD. RESULTS: Six patients participated in this study: five women and one man. Most participants reported acute pain in the location of their EBV+ PTLD. All participants reported significant physical fatigue and experienced productivity loss. Patients reported emotional fatigue, feelings of dissociation, lack of motivation, and persistent fear of disease progression, including mortality. Patients described their social functioning as disjointed, behaving differently with loved ones/caregivers than when alone. The EQ-5D was relevant for the pain/discomfort and anxiety/depression domains; most SF-36v2 domains were relevant, with the exception of the general health perception domain, which was not applicable; all domains in the FACT-LYM were relevant. The open-ended portion drew no new content. CONCLUSIONS: This qualitative research identified meaningful concepts in patients with EBV+ PTLD, with physical, emotional, and social functioning being impacted. The FACT-LYM questionnaire was the most relevant of the three PROs studied, with all domains relevant to this population. It is important to properly analyze PRO data in patients with EBV+ PTLD.

19.
J Drug Assess ; 10(1): 18-26, 2020 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-33489434

RESUMO

PURPOSE: Cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) is a treatment for post-transplant lymphoproliferative disease (PTLD) following solid organ transplant (SOT) after failing rituximab, an aggressive and potentially fatal lymphoma. This study explores the humanistic and economic burden of CHOP-associated adverse events (AEs) in PTLD patients. Since PTLD is rare, searches included lymphoproliferative disease with lymphoma patients. DESIGN: This comprehensive literature review used the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) protocol, pre-specifying the search strategy and criteria. CHOP-associated short-term AEs with an incidence of >4% were sourced from published literature and cancer websites to inform the search strategy. PubMed and EMBASE searches were used to identify humanistic and economic burden studies. RESULTS: PubMed and EMBASE searches identified 3946 citations with 27 lymphoma studies included. Studies were methodologically heterogeneous. Febrile neutropenia (FN) was the AE most encountered, followed by chemotherapy-induced (CI) anemia (A), infection, CI-nausea and vomiting, thrombocytopenia, and CI-peripheral neuropathy (PN). FN and infections were associated with significant disutility, increased hospitalization, and extended length of stay (LOS). Infections and CIPN significantly impacted the utility of patients and CIA-related fatigue showed reductions in quality of life (QoL). Many patients continue to have QoL deficits continued even after AEs were treated. Management costs varied greatly, ranging from nominal (CIPN) to over $100,000 in the USA for infections, EUR 10,290 in Europe for infections, or CAN$1012 in Canada for FN. Cost of outpatient care varied but had a lower economic impact compared to hospitalizations. CONCLUSIONS: Short-term AEs from CHOP in the lymphoma population were associated with substantial humanistic and economic burden.

20.
Am J Nephrol ; 29(5): 473-82, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19039210

RESUMO

BACKGROUND: Chronic kidney disease (CKD) is a prevalent condition; however, little is known about healthcare resource utilization (HRU) by CKD patients. METHODS: This analysis included NHANES participants aged > or =18 years, with serum creatinine, urine protein, and hemoglobin measurements. We assessed the association between CKD (stratified by stage) and HRU based on self-reported physician visits and hospitalizations in the year preceding the survey. RESULTS: Of the 15,258 included in this analysis, 2,110 had early CKD (stage 1 and 2 CKD) and 1,121 had late CKD (stage 3 and 4 CKD). Mean (SE) number of annual physician visits were 3.51 (0.08), 4.43 (0.18), and 6.53 (0.38) for participants with no CKD, early CKD, and late CKD, respectively. Mean (SE) number of annual hospitalizations were 0.15 (0.01), 0.19 (0.01), and 0.42 (0.03) for participants with no CKD, early CKD, and late CKD, respectively. Participants with late CKD were more likely to have more physician visits (OR 1.81, 95% CI 1.46, 2.23) and have more hospital admissions (OR 2.12, 95% CI 1.66, 2.71) compared with participants with early CKD or no CKD. CONCLUSIONS: In this analysis, late stage CKD was associated with increased HRU, suggesting the need for early identification and treatment of CKD and its associated conditions.


Assuntos
Serviços de Saúde/estatística & dados numéricos , Insuficiência Renal Crônica/epidemiologia , Adulto , Idoso , Comorbidade , Progressão da Doença , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Visita a Consultório Médico/estatística & dados numéricos , Insuficiência Renal Crônica/economia , Estados Unidos/epidemiologia
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