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1.
JCO Oncol Pract ; 20(4): 572-580, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38261970

RESUMO

PURPOSE: BMT CTN 1102 was a phase III trial comparing reduced-intensity allogeneic hematopoietic cell transplantation (RIC alloHCT) to standard of care for persons with intermediate- or high-risk myelodysplastic syndrome (MDS). We report results of a cost-effectiveness analysis conducted alongside the clinical trial. METHODS: Three hundred eighty-four patients received HCT (n = 260) or standard of care (n = 124) according to availability of a human leukocyte antigen-matched donor. Cost-effectiveness was calculated from US commercial and Medicare perspectives over a 20-year time horizon. Health care utilization and costs were estimated using propensity score-matched cohorts of HCT recipients in the OptumLabs Data Warehouse (age 50-64 years) and Medicare (age 65 years and older). EuroQol 5 Dimension (EQ-5D) surveys of trial participants were used to derive health state utilities. RESULTS: Extrapolated 20-year overall survival for those age 50-64 years was 29% for HCT (n = 105) versus 13% for usual care (n = 44) and 31% for HCT (n = 155) versus 12% for non-HCT (n = 80) for those age 65 years and older. HCT was more effective (+2.36 quality-adjusted life-years [QALYs] for age 50-64 years and +2.92 QALYs for age 65 years and older) and more costly (+$452,242 in US dollars (USD) for age 50-64 years and +$233,214 USD for age 65 years and older) than usual care, with incremental cost-effectiveness ratios of $191,487 (USD)/QALY and $79,834 (USD)/QALY, respectively. For persons age 50-64 years, there was a 29% chance that HCT was cost-effective using a willingness-to-pay (WTP) threshold of $150K (USD)/QALY and 51% at a $200K (USD)/QALY. For persons age 65 years and older, the probability was 100% at a WTP >$150K (USD)/QALY. CONCLUSION: Among patients age 65 years and older with high-risk MDS, RIC HCT is a high-value strategy. For those age 50-64 years, HCT is a lower-value strategy but has similar cost-effectiveness to other therapies commonly used in oncology.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Síndromes Mielodisplásicas , Idoso , Humanos , Estados Unidos/epidemiologia , Pessoa de Meia-Idade , Análise Custo-Benefício , Análise de Custo-Efetividade , Medicare , Síndromes Mielodisplásicas/terapia
2.
Ann Intern Med ; 176(12): 1625-1637, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-38048587

RESUMO

BACKGROUND: First-line treatment of diffuse large B-cell lymphoma (DLBCL) achieves durable remission in approximately 60% of patients. In relapsed or refractory disease, only about 20% achieve durable remission with salvage chemoimmunotherapy and consolidative autologous stem cell transplantation (ASCT). The ZUMA-7 (axicabtagene ciloleucel [axi-cel]) and TRANSFORM (lisocabtagene maraleucel [liso-cel]) trials demonstrated superior event-free survival (and, in ZUMA-7, overall survival) in primary-refractory or early-relapsed (high-risk) DLBCL with chimeric antigen receptor T-cell therapy (CAR-T) compared with salvage chemoimmunotherapy and consolidative ASCT; however, list prices for CAR-T exceed $400 000 per infusion. OBJECTIVE: To determine the cost-effectiveness of second-line CAR-T versus salvage chemoimmunotherapy and consolidative ASCT. DESIGN: State-transition microsimulation model. DATA SOURCES: ZUMA-7, TRANSFORM, other trials, and observational data. TARGET POPULATION: "High-risk" patients with DLBCL. TIME HORIZON: Lifetime. PERSPECTIVE: Health care sector. INTERVENTION: Axi-cel or liso-cel versus ASCT. OUTCOME MEASURES: Incremental cost-effectiveness ratio (ICER) and incremental net monetary benefit (iNMB) in 2022 U.S. dollars per quality-adjusted life-year (QALY) for a willingness-to-pay (WTP) threshold of $200 000 per QALY. RESULTS OF BASE-CASE ANALYSIS: The increase in median overall survival was 4 months for axi-cel and 1 month for liso-cel. For axi-cel, the ICER was $684 225 per QALY and the iNMB was -$107 642. For liso-cel, the ICER was $1 171 909 per QALY and the iNMB was -$102 477. RESULTS OF SENSITIVITY ANALYSIS: To be cost-effective with a WTP of $200 000, the cost of CAR-T would have to be reduced to $321 123 for axi-cel and $313 730 for liso-cel. Implementation in high-risk patients would increase U.S. health care spending by approximately $6.8 billion over a 5-year period. LIMITATION: Differences in preinfusion bridging therapies precluded cross-trial comparisons. CONCLUSION: Neither second-line axi-cel nor liso-cel was cost-effective at a WTP of $200 000 per QALY. Clinical outcomes improved incrementally, but costs of CAR-T must be lowered substantially to enable cost-effectiveness. PRIMARY FUNDING SOURCE: No research-specific funding.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Linfoma Difuso de Grandes Células B , Receptores de Antígenos Quiméricos , Humanos , Análise de Custo-Efetividade , Receptores de Antígenos Quiméricos/uso terapêutico , Transplante Autólogo , Linfoma Difuso de Grandes Células B/terapia
3.
JAMA Oncol ; 6(4): 486-493, 2020 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-31830234

RESUMO

Importance: In 2010, the US Centers for Medicare & Medicaid Services (CMS) indicated that data regarding efficacy of allogeneic hematopoietic stem cell transplantation (HCT) in the CMS beneficiary population with myelodysplastic syndrome (MDS) were currently insufficient, but that coverage would be provided for patients enrolled in a clinical study that met its criteria for Coverage with Evidence Development (CED). Objective: The Center for International Bone Marrow Transplant Research (CIBMTR) submitted a study concept comparing the outcomes of patients aged 55 to 64 years vs aged 65 years or older who met those criteria, effectively providing coverage by CMS for HCT for MDS. Design, Setting, and Participants: Data on patients aged 65 years or older were prospectively collected and their outcomes compared with patients aged 55 to 64 years. Patients were enrolled in the study from December 15, 2010, to May 14, 2014. The results reported herein were analyzed as of September 4, 2017, with a median follow-up of 47 months. The study was conducted by the CIBMTR. It comprises a voluntary working group of more than 420 centers worldwide that contribute detailed data on allogeneic and autologous HCT and cellular therapies. Interventions: Patients with MDS received HCT according to institutional guidelines and preferences. Main Outcomes and Measures: The primary outcome was overall survival (OS); secondary outcomes included nonrelapse mortality (NRM), relapse-free survival, and acute and chronic graft vs host disease. Results: During the study period, 688 patients aged 65 years or older underwent HCT for MDS and were compared with 592 patients aged 55 to 64 years. Other than age, there were no differences in patient and disease characteristics between the groups. On univariate analysis, the 3-year NRM rate was 28% vs 25% for the 65 years or older group vs those aged 55 to 64 years, respectively. The 3-year OS was 37% vs 42% for the 65 years or older group vs the 55 to 64 years age group, respectively. On multivariable analysis after adjusting for excess risk of mortality in the older group, age group had no significant association with OS (HR, 1.09; 95% CI, 0.94-1.27; P = .23) or NRM (HR, 1.19; 95% CI, 0.93-1.52; P = .16). Conclusions and Relevance: Older patients with MDS undergoing HCT have similar OS compared with younger patients. Based on current data, we would recommend coverage of HCT for MDS by the CMS. Trial Registration: ClinicalTrials.gov identifier: NCT01166009.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Síndromes Mielodisplásicas/terapia , Recidiva Local de Neoplasia/terapia , Transplante Homólogo , Adulto , Fatores Etários , Idoso , Feminino , Doença Enxerto-Hospedeiro , Humanos , Masculino , Medicare , Pessoa de Meia-Idade , Síndromes Mielodisplásicas/patologia , Estados Unidos
5.
Biol Blood Marrow Transplant ; 25(3): 599-605, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30296479

RESUMO

Understanding the socioeconomic impact of chronic graft-versus-host disease (GVHD) on affected patients is essential to help improve their overall well-being. Using data from the Chronic GVHD Consortium, we describe the insurance, employment, and financial challenges faced by these patients and the factors associated with the ability to work/attend school and associated financial burdens. A 15-item cross-sectional questionnaire designed to measure financial concerns, income, employment, and insurance was completed by 190 patients (response rate, 68%; 10 centers) enrolled on a multicenter Chronic GVHD Consortium Response Measures Validation Study. Multivariable logistic regression models examined the factors associated with financial burden and ability to work/attend school. The median age of respondents was 56years, and 87% of the patients were white. A higher proportion of nonrespondents had lower income before hematopoietic cell transplantation and less than a college degree. All but 1 patient had insurance, 34% had faced delayed/denied insurance coverage for chronic GVHD treatments, and 66% reported a financial burden. Patients with a financial burden had greater depression/anxiety and difficulty sleeping. Nonwhite race, lower mental functioning, and lower activity score were associated with a greater likelihood of financial burden. Younger age, early risk disease, and higher mental functioning were associated with a greater likelihood of being able to work/attend school. In this multicenter cohort of patients with chronic GVHD, significant negative effects on finances were observed even with health insurance coverage. Future research should investigate potential interventions to provide optimal and affordable care to at-risk patients and prevent long-term adverse financial outcomes in this vulnerable group.


Assuntos
Emprego , Doença Enxerto-Hospedeiro/economia , Cobertura do Seguro , Classe Social , Doença Crônica , Estudos Transversais , Feminino , Doença Enxerto-Hospedeiro/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , América do Norte , Pacientes , Inquéritos e Questionários
6.
Biol Blood Marrow Transplant ; 24(8): 1748-1753, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29501781

RESUMO

Chronic graft-versus-host disease (cGVHD) frequently affects the oral mucosa and is generally responsive to topical immunomodulatory therapies. Clinicians may benefit from guidance in choosing the most appropriate therapy with respect to practicality and cost. To assess the economic considerations related to topical immunomodulatory treatments for management of oral mucosal cGVHD and their practical implications. Topical treatments used for management of oral cGVHD were obtained from the National Institutes of Health Consensus document for ancillary and supportive care. Cost data for a standard 1-month prescription was obtained from national databases for commercially available formulations and from compounding pharmacies for formulations requiring compounding. There are numerous topical preparations used for the management of oral cGVHD, many of which require compounding. The average wholesale price of the commercially available agents ranges from $5 to $277/month, and the cost of the compounded preparations ranges from $43 to $499/month. Costs can be influenced by drug-, patient-, and pharmacy-related factors. The costs associated with topical treatment of oral cGVHD are substantial, particularly because the disease is chronic and expenses accumulate over time. Rational prescribing according to a proposed algorithm, including de-escalation of therapy when indicated, can help to minimize associated costs. This has practical implications for patients, physicians, pharmacies, and insurance providers.


Assuntos
Doença Enxerto-Hospedeiro/tratamento farmacológico , Doenças da Boca/tratamento farmacológico , Administração Tópica , Algoritmos , Doença Crônica , Doença Enxerto-Hospedeiro/economia , Humanos , Imunossupressores/economia , Imunossupressores/uso terapêutico , Doenças da Boca/economia , Mucosa Bucal
7.
Biol Blood Marrow Transplant ; 24(2): 393-399, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29032275

RESUMO

Chronic graft-versus host disease (GVHD) is a chronic and disabling complication after hematopoietic cell transplantation (HCT). It is important to understand the association of socioeconomic status (SES) with health outcomes in patients with chronic GVHD because of the impaired physical health and dependence on intensive and prolonged health care utilization needs in these patients. We evaluated the association of SES with survival and quality of life (QOL) in a cohort of 421 patients with chronic GVHD enrolled on the Chronic GVHD Consortium Improving Outcomes Assessment study. Income, education, marital status, and work status were analyzed to determine the associations with patient-reported outcomes at the time of enrollment, nonrelapse mortality (NRM), and overall mortality. Higher income (P = .004), ability to work (P < .001), and having a partner (P = .021) were associated with better mean Lee chronic GVHD symptom scores. Higher income (P = .048), educational level (P = .044), and ability to work (P < .001) also were significantly associated with better QOL and improved activity. In multivariable models, higher income and ability to return to work were both significantly associated with better chronic GVHD Lee symptom scores, but income was not associated with activity level, QOL, or physical/mental functioning. The inability to return to work (hazard ratio, 1.82; P = .019) was associated with worse overall mortality, whereas none of the SES indicators were associated with NRM. Income, race, and education did not have statistically significant associations with survival. In summary, we did not observe an association between SES variables and survival or NRM in patients with chronic GVHD, although we found some association with patient-reported outcomes, such as symptom burden. Higher income status was associated with less severe chronic GVHD symptoms. More research is needed to understand the psychosocial, biological, and environmental factors that mediate this association of SES with major HCT outcomes.


Assuntos
Doença Enxerto-Hospedeiro/terapia , Avaliação de Resultados da Assistência ao Paciente , Classe Social , Adulto , Idoso , Doença Crônica , Feminino , Doença Enxerto-Hospedeiro/etiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde , Qualidade de Vida , Adulto Jovem
8.
Biol Blood Marrow Transplant ; 20(10): 1566-72, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24972249

RESUMO

The introduction of reduced-intensity conditioning (RIC) regimens made it possible to offer allogeneic hematopoietic cell transplantation (alloHCT) to older patients with myelodysplastic syndromes (MDS). However, the relative risks and benefits of alloHCT compared with novel nontransplant therapies continue to be the source of considerable uncertainty. We will perform a prospective biologic assignment trial to compare RIC alloHCT with nontransplant therapies based on donor availability. Primary outcome is 3-year overall survival. Secondary outcomes include leukemia-free survival, quality of life, and cost-effectiveness. Four hundred patients will be enrolled over roughly 3 years. Planned subgroup analyses will evaluate key biologic questions, such as the impact of age and response to hypomethylating agents on treatment effects. Findings from this study potentially may set a new standard of care for older MDS patients who are considered candidates for alloHCT.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Análise de Intenção de Tratamento , Síndromes Mielodisplásicas/terapia , Condicionamento Pré-Transplante/métodos , Fatores Etários , Idoso , Análise Custo-Benefício , Metilação de DNA/efeitos dos fármacos , Feminino , Teste de Histocompatibilidade , Humanos , Masculino , Pessoa de Meia-Idade , Agonistas Mieloablativos/uso terapêutico , Síndromes Mielodisplásicas/imunologia , Síndromes Mielodisplásicas/mortalidade , Síndromes Mielodisplásicas/patologia , Prognóstico , Estudos Prospectivos , Qualidade de Vida , Fatores de Risco , Análise de Sobrevida , Transplante Homólogo , Doadores não Relacionados
9.
Arthritis Rheumatol ; 66(4): 1044-52, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24757155

RESUMO

OBJECTIVE: To investigate the usefulness of various scales for evaluating joint and fascia manifestations in patients with chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic cell transplantation, and to compare the scales in terms of simplicity of use and ability to yield reliable and clinically meaningful results. METHODS: In a prospective, multicenter, longitudinal, observational cohort of patients with chronic GVHD (n = 567), we evaluated 3 scales proposed for assessing joint status: the National Institutes of Health (NIH) joint/fascia scale, the Hopkins fascia scale, and the Photographic Range of Motion (P-ROM) scale. Ten other scales were also tested for assessment of symptoms, quality of life, and physical functions. RESULTS: Joint and fascia manifestations were present at study enrollment in 164 (29%) of the patients. Limited range of motion was most frequent at the wrists or fingers. Among the 3 joint assessment scales, changes in the NIH scale correlated with both clinician- and patient-perceived improvement of joint and fascia manifestations, with higher sensitivity than the Hopkins fascia scale. Changes in all 3 scales correlated with clinician- and patient-perceived worsening, but the P-ROM scale was the most sensitive in this regard. Onset of joint and fascia manifestations was not associated with subsequent mortality. CONCLUSION: Joint and fascia manifestations are common in patients with chronic GVHD and should be assessed carefully in these patients. Our results support the use of the NIH joint/fascia scale and P-ROM scale to assess joint and fascia manifestations. The NIH scale better captures improvement, while the P-ROM scale better captures worsening. The utility of these scales could also be tested in the rheumatic diseases.


Assuntos
Fáscia/fisiopatologia , Doença Enxerto-Hospedeiro/diagnóstico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Articulações/fisiopatologia , Amplitude de Movimento Articular/fisiologia , Adolescente , Adulto , Feminino , Doença Enxerto-Hospedeiro/etiologia , Doença Enxerto-Hospedeiro/mortalidade , Doença Enxerto-Hospedeiro/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Índice de Gravidade de Doença
10.
J Clin Oncol ; 31(21): 2662-70, 2013 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-23797000

RESUMO

PURPOSE: Myelodysplastic syndromes (MDS) are clonal hematopoietic disorders that are more common in patients aged ≥ 60 years and are incurable with conventional therapies. Reduced-intensity conditioning (RIC) allogeneic hematopoietic stem-cell transplantation is potentially curative but has additional mortality risk. We evaluated RIC transplantation versus nontransplantation therapies in older patients with MDS stratified by International Prognostic Scoring System (IPSS) risk. PATIENTS AND METHODS: A Markov decision model with quality-of-life utility estimates for different MDS and transplantation states was assessed. Outcomes were life expectancy (LE) and quality-adjusted life expectancy (QALE). A total of 514 patients with de novo MDS aged 60 to 70 years were evaluated. Chronic myelomonocytic leukemia, isolated 5q- syndrome, unclassifiable, and therapy-related MDS were excluded. Transplantation using T-cell depletion or HLA-mismatched or umbilical cord donors was also excluded. RIC transplantation (n = 132) stratified by IPSS risk was compared with best supportive care for patients with nonanemic low/intermediate-1 IPSS (n = 123), hematopoietic growth factors for patients with anemic low/intermediate-1 IPSS (n = 94), and hypomethylating agents for patients with intermediate-2/high IPSS (n = 165). RESULTS: For patients with low/intermediate-1 IPSS MDS, RIC transplantation LE was 38 months versus 77 months with nontransplantation approaches. QALE and sensitivity analysis did not favor RIC transplantation across plausible utility estimates. For intermediate-2/high IPSS MDS, RIC transplantation LE was 36 months versus 28 months for nontransplantation therapies. QALE and sensitivity analysis favored RIC transplantation across plausible utility estimates. CONCLUSION: For patients with de novo MDS aged 60 to 70 years, favored treatments vary with IPSS risk. For low/intermediate-1 IPSS, nontransplantation approaches are preferred. For intermediate-2/high IPSS, RIC transplantation offers overall and quality-adjusted survival benefit.


Assuntos
Transplante de Células-Tronco Hematopoéticas/métodos , Síndromes Mielodisplásicas/cirurgia , Condicionamento Pré-Transplante/métodos , Idoso , Técnicas de Apoio para a Decisão , Feminino , Humanos , Cooperação Internacional , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Qualidade de Vida
11.
Biol Blood Marrow Transplant ; 19(6): 967-72, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23542686

RESUMO

Hand grip strength (HGS) and the 2-minute walk test (2MWT) have been proposed as elements of chronic graft-versus-host disease (GVHD) assessment in clinical trials. Using all available data (n = 584 enrollment visits, 1689 follow-up visits, total of 2273 visits) from a prospective observational cohort study, we explored the relationship between HGS and 2MWT and patient-reported measures (Lee symptom scale, MOS 36-Item Short-Form Health Survey [SF-36], and Functional Assessment of Cancer Therapy [FACT]-Bone Marrow Transplantation quality of life instruments and Human Activity Profile [HAP]), chronic GVHD global severity (National Institutes of Health global score, clinician global score, and patient-reported global score), calculated and clinician-reported chronic GVHD response, and mortality (overall survival, nonrelapse mortality, and failure-free survival) in multivariable analyses adjusted for significant covariates. 2MWT was significantly associated with intuitive domains of the Lee Symptom Scale (overall, skin, lung, energy), SF-36 domain and summary scores, FACT summary and domain scores, and HAP scores (all P < .001). Fewer associations were detected with the HGS. The 2MWT and HGS both had significant association with global chronic GVHD severity. In multivariable analysis, 2MWT was significantly associated with overall survival, nonrelapse mortality, and failure-free survival, whereas no association was found for HGS. 2MWT and HGS were not sensitive to National Institutes of Health or clinician-reported response. Based on independent association with mortality, these data support the importance of the 2MWT for identification of high-risk chronic GVHD patients. However, change in 2MWT is not sensitive to chronic GVHD response, limiting its usefulness in clinical trials.


Assuntos
Doença Enxerto-Hospedeiro/diagnóstico , Doença Enxerto-Hospedeiro/terapia , Força da Mão , Transplante de Células-Tronco Hematopoéticas , Caminhada , Adolescente , Adulto , Idoso , Biomarcadores/análise , Criança , Pré-Escolar , Doença Crônica , Feminino , Doença Enxerto-Hospedeiro/imunologia , Doença Enxerto-Hospedeiro/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Qualidade de Vida , Recidiva , Índice de Gravidade de Doença , Análise de Sobrevida , Transplante Homólogo , Resultado do Tratamento
12.
J Clin Oncol ; 29(5): 566-72, 2011 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-21220586

RESUMO

Myelodysplastic syndromes (MDS) comprise a heterogeneous group of clonal hematopoietic stem-cell disorders that result in varying degrees of cytopenia and risk of transformation into acute leukemia. Allogeneic stem-cell transplantation (SCT) is the only known cure for this disease. The treatment is routinely used for younger patients, but only a minority of patients older than the age of 60 undergo this procedure. The overall MDS incidence is 3.3 per 100,000, but the incidence in patients older than age 70 is between 15 and 50 per 100,000. The median age at presentation is 76 years. Medicare-age patients 65 or older represent 80% of the total population receiving an MDS diagnosis. In the United States, one of the obstacles to SCT for older patients with MDS has been lack of third party reimbursement. On August 4, 2010, the Centers for Medicare and Medicaid Services released their Decision Memo for Allogeneic Hematopoietic Stem Cell Transplantation (HSCT) for Myelodysplastic Syndrome. This memo states: "Allogeneic HSCT for MDS is covered by Medicare only for beneficiaries with MDS participating in an approved clinical study that meets the criteria below…. " In this review, we will summarize what is known regarding the role of allogeneic SCT in older patients as well as other elements that should be included within clinical trials that can provide the evidence necessary to demonstrate that allogeneic SCT should be a covered benefit for Medicare beneficiaries.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Medicaid , Medicare , Síndromes Mielodisplásicas/terapia , Idoso , Humanos , Síndromes Mielodisplásicas/mortalidade , Prognóstico , Transplante Homólogo , Estados Unidos
14.
Biol Blood Marrow Transplant ; 15(11): 1415-21, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19822301

RESUMO

Peripheral blood stem cells (PBSCs) and bone marrow (BM) hematopoietic stem cells represent therapeutic alternatives in allogeneic hematopoietic cell transplantation. Randomized controlled trials and an individual patient data meta-analysis (IPDMA) have demonstrated a decreased risk of disease relapse and an increased risk of acute and chronic graft-versus-host disease (aGVHD, cGVHD) in patients receiving PBSCs compared with those receiving BM stem cells. Decision modeling provides quantitative integration of the risks and benefits associated with these alternative treatments, incorporates survival discounts for lower quality of life in patients with aGVHD or cGVHD and post-transplantation relapse, and allows sensitivity analyses for all model assumptions. We have constructed an externally validated Markov model to represent and analyze the decision to use PBSC or BM, estimating post-transplantation state transition probabilities (eg, GVHD and relapse) and quality-of-life discounts from the IPDMA and relevant literature; importantly, this IPDMA synthesized data from primarily adult patients treated with myeloablative (MA) conditioning regimens with T cell-replete matched sibling donors. In this setting, the model demonstrates the superiority of PBSC over BM in both overall and quality-adjusted life expectancy, with a 7-month advantage for PBSC. Sensitivity analyses support this conclusion through a range of values for each variable supported by the IPDMA and quality-of-life discounts, as supported by the literature. However, BM is the optimal strategy in conditions in which the 1-year relapse probability is < 5%. PBSC is the optimal stem cell source in terms of both overall and quality-adjusted life expectancy, except in conditions with a very low relapse probability, in which BM provides optimal outcomes.


Assuntos
Transplante de Medula Óssea/estatística & dados numéricos , Técnicas de Apoio para a Decisão , Cadeias de Markov , Transplante de Células-Tronco de Sangue Periférico/estatística & dados numéricos , Doença Aguda , Adolescente , Adulto , Idoso , Transplante de Medula Óssea/efeitos adversos , Doença Crônica , Ensaios Clínicos como Assunto/estatística & dados numéricos , Doença Enxerto-Hospedeiro/epidemiologia , Doença Enxerto-Hospedeiro/etiologia , Humanos , Doadores Vivos , Metanálise como Assunto , Pessoa de Meia-Idade , Agonistas Mieloablativos/administração & dosagem , Transplante de Células-Tronco de Sangue Periférico/efeitos adversos , Anos de Vida Ajustados por Qualidade de Vida , Recidiva , Irmãos , Condicionamento Pré-Transplante/estatística & dados numéricos , Transplante Homólogo/efeitos adversos , Transplante Homólogo/estatística & dados numéricos , Resultado do Tratamento , Adulto Jovem
15.
Biol Blood Marrow Transplant ; 14(2): 197-207, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18215780

RESUMO

To characterize the costs of allogeneic hematopoietic cell transplantation with high-dose regimens (HDCT), we analyzed clinical information and costs of 315 HDCT recipients during a 4-year study period beginning in 2000. Multivariate analyses were performed to identify pre- and/or post-HDCT factors predicting higher costs within the first year. Overall survival (OS) at 100 days and 1 year were 80% and 58%, respectively. The median cost and days of hospitalization were $102,574 in 2004 US dollars and 36 days in the hospital for 100 days, and $128,800 and 39 days in the hospital for 1 year. Early costs, defined as costs within the first 100 days, accounted for 84% of total costs within the first year. Inpatient costs comprise 94% of the early costs, but only 61% of the later costs defined as costs incurred between 101 days and 1 year. Of the pre-HDCT factors, unrelated donors and advanced disease risk were significantly associated with increased cost. When post-HDCT events were also considered, these pre-HDCT factors were no longer independently predictive of high cost. Instead, severe complications post-HDCT were associated with higher costs, increasing total costs $20,228 on average. If no complications occurred, the mean cost within the first year was $79,222. These results provide cost estimates for complicated and uncomplicated HDCT procedures, as well as costs for management of specific transplant complications.


Assuntos
Transplante de Células-Tronco Hematopoéticas/economia , Transplante de Células-Tronco Hematopoéticas/métodos , Adulto , Custos e Análise de Custo , Coleta de Dados , Feminino , Neoplasias Hematológicas/complicações , Neoplasias Hematológicas/mortalidade , Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas/mortalidade , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Análise de Sobrevida , Transplante Homólogo , Resultado do Tratamento
16.
Blood ; 104(2): 579-85, 2004 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-15039286

RESUMO

Bone marrow transplantation (BMT) can cure myelodysplastic syndrome (MDS), although transplantation carries significant risks of morbidity and mortality. Because the optimal timing of HLA-matched BMT for MDS is unknown, we constructed a Markov model to examine 3 transplantation strategies for newly diagnosed MDS: transplantation at diagnosis, transplantation at leukemic progression, and transplantation at an interval from diagnosis but prior to leukemic progression. Analyses using individual patient risk-assessment data from transplantation and nontransplantation registries were performed for all 4 International Prognostic Scoring System (IPSS) risk groups with adjustments for quality of life (QoL). For low and intermediate-1 IPSS groups, delayed transplantation maximized overall survival. Transplantation prior to leukemic transformation was associated with a greater number of life years than transplantation at the time of leukemic progression. In a cohort of patients under the age of 40 years, an even more marked survival advantage for delayed transplantation was noted. For intermediate-2 and high IPSS groups, transplantation at diagnosis maximized overall survival. No changes in the optimal transplantation strategies were noted when QoL adjustments were incorporated. For low- and intermediate-1-risk MDS, delayed BMT is associated with maximal life expectancy, whereas immediate transplantation for intermediate-2- and high-risk disease is associated with maximal life expectancy.


Assuntos
Transplante de Medula Óssea/mortalidade , Técnicas de Apoio para a Decisão , Síndromes Mielodisplásicas/mortalidade , Síndromes Mielodisplásicas/terapia , Adolescente , Adulto , Feminino , Humanos , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Fatores de Risco , Análise de Sobrevida , Resultado do Tratamento
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