To evaluate the cost‐utility of pembrolizumab versus chemotherapy as the first-line setting for metastatic non-small cell lung cancer (NSCLC) from the US health care system perspective, a Markov model was developed to compare the lifetime cost and effectiveness of pembrolizumab versus chemotherapy for untreated metastatic NSCLC, based on the clinical data derived from phase III randomized controlled trial (KEYNOTE-042; ClinicalTrials.gov; NCT02220894). Weibull distribution was fitted to simulate the parametric survival functions. Drug costs were collected from official websites, and utility values were obtained from published literature. Total costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios (ICERs) were computed as primary output indicators. The impact of different PD-L1 expression levels on ICER was also evaluated. One-way and probabilistic sensitivity analyses were performed to assess the model uncertainty. Compared with chemotherapy, patients treated with pembrolizumab provided an additional 1.13, 1.01, and 0.59 QALYs in patients with PD-L1 expression levels of ≥50%, ≥20%, and ≥1%, with corresponding incremental cost of 53,784, 47,479, and 39,827, respectively. The resultant ICERs of pembrolizumab versus chemotherapy were 47,596, 47,184, and 68,061/QALY, in three expression levels of PD-L1, respectively, all of which did not exceed the WTP threshold of 180,000/QALY. Probability sensitivity analysis outcome supported that pembrolizumab exhibited evident advantage over chemotherapy to be cost-effective. One-way sensitivity analysis found that ICERs were most sensitive to utility value of pembrolizumab in progression survival state. All the adjustment of parameters did not qualitatively change the result. For treatment-naive, metastatic NSCLC patients with PD-L1+, pembrolizumab was estimated to be cost-effective compared with chemotherapy for all PD-L1 expression levels at a WTP threshold of 180,000/QALY in the context of the US health care system.
BackgroundHepatic arterial infusion (HAI) of oxaliplatin, leucovorin, and fluorouracil (FOLFOX) plus sorafenib has a more desirable effect versus sorafenib for hepatocellular carcinoma (HCC) patients with portal vein invasion. However, considering the high cost of hepatic arterial infusion of chemotherapy (HAIC), this study evaluated the cost-effectiveness of HAIC plus sorafenib (SoraHAIC) versus standard care for HCC patients from the Chinese health system perspective.MethodsA Markov multi-state model was constructed to simulate the disease course and source consumption of SoraHAIC. Costs of primary therapeutic drugs were calculated based on the national bid price, and hepatic artery catheterization fee was collected from the Fujian Provincial Price Bureau. Clinical data, other costs, and utility values were extracted from references. Primary outcomes included life-years (LYs), quality-adjusted life years (QALYs) and incremental cost-effectiveness ratio (ICER). The robustness of model was verified by uncertainty sensitivity analyses.ResultsSoraHAIC gained 1.18 QALYs (1.68 LYs) at a cost of $65,254, while the effectiveness and cost of sorafenib were 0.52 QALYs (0.79 LYs) and $14,280, respectively. The ICER of SoraHAIC vs sorafenib was $77,132/QALY ($57,153/LY). Parameter that most influenced the ICER was utility of PFS state. The probabilistic sensitivity analysis (PSA) showed that SoraHAIC was not cost-effective in the WTP threshold of 3*Gross Domestic Product (GDP) per capita of China ($30,492/QALY). But about 38.8% of the simulations were favorable to SoraHAIC at the WTP threshold of 3*GDP per capita of Beijing ($72,000/QALY). When 3*GDP per capita of Fujian ($47,285/QALY) and Gansu Province ($14,595/QALY) were used as WTP threshold, the acceptability of SoraHAIC was 0.3% and 0%, respectively.ConclusionsThe study results indicated that SoraHAIC was not cost-effective in medium-, and low-income regions of China. In developed areas of China (Beijing), there was a 38.8% probability that the SoraHAIC regimen would be cost-effective.
Ovarian cancer is the most lethal gynecological tumor, and the 5-year survival rate is only ~40%. The poor survival rate is due to cancer diagnosis at an advanced stage, when the tumor has metastasized. A better understanding of the molecular pathogenesis of tumor growth and metastasis is needed to improve patient prognosis. MicroRNAs (miRs) regulate carcinogenesis and development of cancers. However, the role of miR-508-3p in ovarian cancer remains largely unknown. Thus, the present study aimed to investigate the possible functions of miR-508-3p in the modulation of development of ovarian cancer. The results of the present study demonstrated that miR-508-3p mimics inhibited ovarian cancer cell proliferation, migration and invasion. Reporter gene assay results demonstrated that miR-508-3p suppressed cancer cell proliferation by directly targeting the 3'-untranslated region (UTR) of cyclin A2 (CCNA2) and suppressed migration and invasion by directly targeting the 3'-UTR of matrix metalloproteinase 7 (MMP7). In addition, high CCNA2 and MMP7 expression levels were associated with low miR-508-3p expression in ovarian cancer tissues. Furthermore, miR-508-3p and CCNA2 were independent predictors for overall survival in patients with ovarian cancer. To the best of our knowledge, this is the first study to demonstrated that miR-508-3p suppressed ovarian cancer development by directly targeting CCNA2 and MMP7. The results of this study suggested the potential value of miR-508-3p and CCNA2 as prognostic indicators and therapeutics for ovarian cancer.
Background. The latest published CASPIAN trial demonstrated that adding durvalumab to etoposide and platinum (EP) improved survival dramatically for patients with extensive-stage small cell lung cancer (ES-SCLC). Considering the high cost of durvalumab, this study evaluated the cost-effectiveness of durvalumab plus EP (DEP) in the first-line setting for treatmentnaïve patients with ES-SCLC from the U.S. payer perspective. Materials and Methods. We developed a three-state Markov model to simulate the disease course and source consumption of ES-SCLC over a lifetime horizon. Pseudo-individual patientlevel data were generated from digitized Kaplan-Meier curves. Direct medical costs, including drug and administration costs, disease management and adverse events treatment fees, best supportive care and terminal care costs were obtained from sources including the Centers for Medicare and Medicaid Services, Healthcare Cost and Utilization Project, and relevant literature. Health state utility values were derived from published literature. Main outcomes considered were total costs, lifeyears (LYs), quality-adjusted LYs (QALYs), and incremental cost-effectiveness ratio (ICER). All costs were adjusted for inflation to reflect 2019 U.S. dollars. The willingness-to-pay threshold was set as $150,000/QALY. One-way and probabilistic sensitivity analyses were used to explore the uncertainty of model assumptions.Results. Compared with EP, DEP was projected to increase life expectancy by 0.86 LYs (1.73 vs. 0.87) and 0.44 QALYs (0.93 vs. 0.49). The incremental treatment cost was $95,907, and the corresponding ICER was $216,953/QALY. The result was most sensitive to the variation of durvalumab acquisition cost. Probabilistic sensitivity analysis revealed that the probability of DEP over EP regimen to be cost-effective was 9.4% at a willingness-to-pay threshold of $150,000/QALY. In the case of reducing the price of durvalumab by 30.7%, DEP was more cost-effective than EP. Conclusion.
Background: Several studies have evaluated the cost-effectiveness of treatment for advanced hepatocellular carcinoma (HCC), but the economics of atezolizumab plus bevacizumab (Ate plus Beva) remains unclear. Method: A three-state Markov model was established to simulate the life-time cost and effectiveness of advanced liver cancer, which included costs and health outcomes. Medical costs were sourced from Red Book, Healthcare Cost and Utilization Project (HCUP) and literatures. Also, the utility values of health state were deprived from references. The primary outcomes were measured by life-years (LYs), quality-adjusted life-years (QALYs), incremental cost-benefit ratio (ICER) and incremental net-health benefit (INHB). The robustness of the model was verified by one-way and probabilistic sensitivity analysis.Results: Ate plus Beva generated a gain of 0.84 QALYs (1.17 LYs ), an additional incremental cost of $242,447.40 per patient as compared with sorafenib, which resulted in the ICER of $288,663.09/QALY ($206,906.76/LY) at the willingness-to-pay (WTP) threshold of $150,000/QALY, and the INHB was -0.78/QALY. The sensitivity analysis demonstrated that the ICER was most affected by the price of atezolizumab.Conclusion: From the U.S. health care payer perspective, compare with sorafenib, Ate plus Beva regimen seems unlikely to be cost-effective in advanced HCC patients at a WTP threshold of 150,000 /QALY. If the price of atezolizumab was reduced by 75%, the probability of atezolizumab being cost-effective was over 50% at the WTP threshold.
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