Cost-Effectiveness of a Biopsy-Based 8-Protein Prostate Cancer Prognostic Assay to Optimize Treatment Decision Making in Gleason 3 + 3 and 3 + 4 Early Stage Prostate Cancer.
Oncologist
; 20(12): 1355-64, 2015 Dec.
Article
em En
| MEDLINE
| ID: mdl-26482553
ABSTRACT
BACKGROUND:
Many patients with Gleason 3 + 3 and 3 + 4 early stage prostate cancer receive invasive treatment but likely derive little or no benefit. A novel 8-protein prognostic assay generates a risk score at time of biopsy that is predictive of prostate cancer aggressiveness and can inform treatment decisions. The objective of this study was to evaluate the cost-effectiveness of using the assay to inform treatment decisions compared with usual care. PATIENTS ANDMETHODS:
We developed a simulation model to estimate quality-adjusted life-year (QALY) and cost outcomes for the 8-protein assay and usual care strategies. Risk classification outcomes, treatment distributions, costs, health state utilities, and mortality rates were derived from the assay's validation study and the peer-reviewed literature. Outcomes included incremental QALYs, costs, and cost-effectiveness ratios. We conducted one-way and probabilistic sensitivity analyses to evaluate the most influential inputs and to explore joint uncertainty in outcomes, respectively.RESULTS:
The 8-protein assay strategy resulted in 0.04 more QALY and $700 less in costs compared with usual care (and thus was "dominant"). The cost-effectiveness of the assay strategy was most sensitive to the assay cost, the active surveillance health state utility, and the proportion of low-risk patients receiving active surveillance (vs. treatment) in usual care. In the probabilistic sensitivity analyses, the assay strategy decreased cost and increased QALYs in 86.9% and 58.3% of simulations, respectively.CONCLUSION:
Assuming that ongoing prospective studies support the results of retrospective validation studies, the 8-protein prognostic assay strategy for prostate cancer is likely to be a cost-effective alternative to usual guideline-based care in biopsy Gleason 3 + 3 and 3 + 4 early stage prostate cancer.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Biópsia
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Proteínas
/
Biomarcadores Tumorais
Tipo de estudo:
Etiology_studies
/
Guideline
/
Health_economic_evaluation
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Humans
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Male
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article