scholarly journals Cost-effectiveness analysis of selective first-line use of biologics for unresectable RAS wild-type left-sided metastatic colorectal cancer

2019 ◽  
Vol 26 (5) ◽  
Author(s):  
W. W.L. Wong ◽  
M. Zargar ◽  
S. R. Berry ◽  
Y. J. Ko ◽  
M. Riesco-Martínez ◽  
...  

Background Evidence from a retrospective analysis of multiple large phase iii trials suggested that primary tumour location (ptl) in RAS wild-type metastatic colorectal cancer (wtRAS mcrc) might have predictive value with respect to response to drug therapies. Recent studies also show a potential preferential benefit for epidermal growth factor inhibitors (egfris) for left-sided tumours. In the present study, we aimed to determine the incremental costeffectiveness ratio (icer) for the first-line use of an egfri for patients with left-sided wtRAS mcrc.Methods We developed a state-transition model to determine the cost effectiveness of alternative treatmentstrategies in patients with left-sided mcrc:■ Standard of care■ Use of an egfri in first-line therapyThe cohort for the study consisted of patients diagnosed with unresectable wtRAS mcrc with an indication for chemotherapy and previously documented ptl. Model parameters were obtained from the published literature and calibration. The perspective was that of a provincial ministry of health in Canada. We used a 5-year time horizon and an annual discount rate of 1.5%.Results Selecting patients for first-line egfri treatment based on left-sided location of their colorectal primary tumour was more effective than the standard of care, resulting in an increase in quality-adjusted life-years (qalys) of 0.226 (or 0.644 life-years gained). However, the strategy was also more expensive, costing an average of $60,639 more per patient treated. The resulting icer was $268,094 per qaly. A 35% price reduction in the cost of egfri would be needed to make this strategy cost-effective at a willingness-to-pay threshold (wtp) of $100,000 per qaly.Conclusions Selective use of an egfri based on ptl was more cost-effective than unselected use of those agents; however, based on traditional wtp thresholds, it was still not cost-effective. While awaiting the elucidation of more precise predictive biomarkers that might improve cost-effectiveness, the price of egfris could be reduced to meet the wtp threshold.

BMJ Open ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. e030738 ◽  
Author(s):  
Huijuan Wang ◽  
Lingfei Huang ◽  
Peng Gao ◽  
Zhengyi Zhu ◽  
Weifeng Ye ◽  
...  

ObjectivesCetuximab plus leucovorin, fluorouracil and oxaliplatin (FOLFOX-4) is superior to FOLFOX-4 alone as a first-line treatment for patients with metastatic colorectal cancer with RAS wild-type (RAS wt mCRC), with significantly improved survival benefit by TAILOR, an open-label, randomised, multicentre, phase III trial. Nevertheless, the cost-effectiveness of these two regimens remains uncertain. The following study aims to determine whether cetuximab combined with FOLFOX-4 is a cost-effective regimen for patients with specific RAS wt mCRC in China.DesignA cost-effectiveness model combined decision tree and Markov model was built to simulate pateints with RAS wt mCRC based on health states of dead, progressive and stable. The health outcomes from the TAILOR trial and utilities from published data were used respectively. Costs were calculated with reference to the Chinese societal perspective. The robustness of the results was evaluated by univariate and probabilistic sensitivity analyses.ParticipantsThe included patients were newly diagnosed Chinese patients with fully RAS wt mCRC.InterventionsFirst-line treatment with either cetuximab plus FOLFOX-4 or FOLFOX-4.Main outcome measuresThe primary outcomes are costs, quality-adjusted life-years (QALYs) and incremental cost-effectiveness ratios (ICERs).ResultsBaseline analysis disclosed that the QALYs was increased by 0.383 caused by additional cetuximab, while an increase of US$62 947 was observed in relation to FOLFOX-4 chemotherapy. The ICER was US$164 044 per QALY, which exceeded the willingness-to-pay threshold of US$28 106 per QALY.ConclusionsDespite the survival benefit, cetuximab combined with FOLFOX-4 is not a cost-effective treatment for the first-line regime of patients with RAS wt mCRC in China.Trial registration numberTAILOR trial (NCT01228734); Post-results.


2020 ◽  
Author(s):  
Zhi Peng ◽  
Xingduo Hou ◽  
Yangmu Huang ◽  
Tong Xie ◽  
Xinyang Hua

Abstract Background: In this study, we analyze the cost-effectiveness of fruquintinib as third-line treatment for patients with metastatic colorectal cancer in China, especially after a recent price drop suggested by the National Healthcare Security Administration. Methods: A Markov model was developed to investigate the cost-effectiveness of fruquintinib compared to placebo among patients with metastatic colorectal cancer. Effectiveness was measured in quality-adjusted life years (QALY). The Chinese healthcare payer’s perspective was considered with a lifetime horizon, including direct medical cost (2019 US dollars [USD]). A willing‐to‐pay threshold was set at USD 27,130/QALY, which is three times the gross domestic product (GDP) per capita. We examined the robustness of the model in one-way and probabilistic sensitivity analysis.Results: Fruquintinib was associated with better health outcomes than placebo (0.640 vs 0.478 QALYs) with a higher cost (USD 20750.9 vs USD 12042.2), resulting in an incremental cost-effectiveness ratio (ICER) of USD 53508.7 per QALY. This ICER is 25% lower than the one calculated before the price drop (USD 70952.6 per QALY).Conclusion: After the price negotiation, the drug becomes cheaper and the ICER is lower, but the drug is still not cost effective under the standard of 3 times GDP willing‐to‐pay threshold. For patients with metastatic colorectal cancer in China, fruquintinib is not a cost-effective option under the current circumstances in China.


BMC Cancer ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Zhi Peng ◽  
Xingduo Hou ◽  
Yangmu Huang ◽  
Tong Xie ◽  
Xinyang Hua

Abstract Background In this study, we analyze the cost-effectiveness of fruquintinib as third-line treatment for patients with metastatic colorectal cancer in China, especially after a recent price drop suggested by the National Healthcare Security Administration. Methods A Markov model was developed to investigate the cost-effectiveness of fruquintinib compared to placebo among patients with metastatic colorectal cancer. Effectiveness was measured in quality-adjusted life years (QALY). The Chinese healthcare payer’s perspective was considered with a lifetime horizon, including direct medical cost (2019 US dollars [USD]). A willing-to-pay threshold was set at USD 27,130/QALY, which is three times the gross domestic product (GDP) per capita. We examined the robustness of the model in one-way and probabilistic sensitivity analysis. Results Fruquintinib was associated with better health outcomes than placebo (0.640 vs 0.478 QALYs) with a higher cost (USD 20750.9 vs USD 12042.2), resulting in an incremental cost-effectiveness ratio (ICER) of USD 53508.7 per QALY. This ICER is 25% lower than the one calculated before the price drop (USD 70952.6 per QALY). Conclusion After the price negotiation, the drug becomes cheaper and the ICER is lower, but the drug is still not cost effective under the standard of 3 times GDP willing-to-pay threshold. For patients with metastatic colorectal cancer in China, fruquintinib is not a cost-effective option under the current circumstances in China.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15003-e15003
Author(s):  
Linli Yao ◽  
Jiaqi Han ◽  
Longjiang She ◽  
Dong Ding ◽  
Mengting Liao ◽  
...  

e15003 Background: As standard third-line treatments for metastatic colorectal cancer, regorafenib and fruquintinib, compared with placebo, increase median overall survival by 2.5 months and 2.7 months, respectively. Given the incremental clinical benefit, we aim to estimate the cost effectiveness of regorafenib versus fruquintinib in the third-line treatment for patients with metastatic colorectal cancer from Chinese payer perspective. Methods: A mathematical Markov model was established to project the cost-effectiveness of regorafenib versus fruquintinib from the CONCUR and FRESCO clinical trials. Quality-adjusted-life-years (QALYs) were analyzed with extracted data from the trials. Willingness to pay (WTP) of $26508 was used. Drug costs were estimated from the perspectives of the health care system in the People’s Republic of China. One way sensitivity and scenario analyses were performed by varying potentially modifiable parameters of the model. Results: Fruquintinib, compared with regorafenib, provided an additional 0.028 QALYs (0.274 QALYs versus 0.246 QALYs) at less cost ($33536 versus $35607). Conclusions: Fruquintinib is more cost-effective than regorafenib as the third-line management for patients with metastatic colorectal cancer when WTP is $26508.


2016 ◽  
Vol 12 (6) ◽  
pp. e710-e723 ◽  
Author(s):  
Maria Carmen Riesco-Martínez ◽  
Scott R. Berry ◽  
Yoo-Joung Ko ◽  
Nicole Mittmann ◽  
Angie Giotis ◽  
...  

Purpose: Patients with unresectable wild-type KRAS metastatic colorectal cancer benefit from fluoropyrimidines (FP), oxaliplatin (O), irinotecan (I), bevacizumab (Bev), and epithelial growth factor receptor inhibitors (EGFRI). The most cost-effective regimen remains unclear. Methods: A Markov model was constructed to examine the costs and outcomes of three treatment strategies: strategy A (reference strategy): EGFRI monotherapy in third line ([3L]; ie, first-line [1L]: Bev + FOLFIRI [FP + I] or FOLFOX [FP + O]; second line [2L]: FOLFIRI/FOLFOX; 3L: EGFRI); strategy B: EGFRI and I in 3L (ie, 1L: Bev + FOLFIRI/FOLFOX; 2L: FOLFIRI/FOLFOX; 3L: EGFRI + I); and strategy C: EGFRI in 1L (ie, 1L: EGFRI + FOLFIRI/FOLFOX; 2L: Bev + FOLFIRI/FOLFOX; 3L: best supportive care). Efficacy data of the treatments were obtained from the literature. Health system resource use information was derived from chart review and the literature. Using Euro-QOL 5 Dimensions, utilities were obtained by surveying medical oncologists and costs from the Ontario Ministry of Health and the literature. The perspective of the Canadian public health care system was used over a 5-year time horizon with a 5% discount in 2012 Canadian dollars. Results: All three strategies had similar efficacy, but strategy C was most expensive. The incremental cost-effectiveness ratios (ICERs) for strategies B and C compared with A were 119,623 and 3,176,591, respectively. The model was primarily driven by the acquisition cost of the drugs. Strategy B was most cost effective when the willingness-to-pay threshold was > $130,000 per quality-adjusted life-year. Sensitivity analysis showed that strategy C would be cost-effective only when the progression-free survival of EGFRI is better than Bev in 1L with hazard ratio < 0.23 at willingness-to-pay of $150,000 per quality-adjusted life-year. Conclusion: First-line use of EGFRI in metastatic colorectal cancer is not cost effective at its current pricing relative to Bev.


2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 133-133
Author(s):  
Ilse Van Oostrum ◽  
Yannan Hu ◽  
Zijiao Yuan ◽  
Michael Schlichting ◽  
Libo Tao ◽  
...  

133 Background: Adding cetuximab to FOLFIRI chemotherapy (cet+CT) as first-line (1L) treatment for RAS wild-type (wt) metastatic colorectal cancer (mCRC) has been reported as cost-effective vs bevacizumab + FOLFIRI (bev+CT) in multiple jurisdictions. This study determined the cost-effectiveness (CE) of cet+CT for patients with mCRC in China. Methods: A published 3–health-state (nonprogressive, progressive, death) CE model was adapted to reflect Chinese patient characteristics, health state utilities, unit costs, and discounting rates, applying FIRE-3 trial–based resource utilization and adverse event rates. Progression-free and overall survival estimates were based on published FIRE-3 trial simulations to statistically adjust for available later-line treatment modalities in China vs those observed in FIRE-3. [1] Cetuximab and bevacizumab costs were based on up-to-date prices after the 2019 national reimbursement drug listing negotiations. Incremental CE ratios (ICERs) are given as cost (Chinese Yuan [¥]) per life-year (LY) and quality-adjusted LY (QALY) gained. The willingness-to-pay (WTP) threshold was ¥193,931, equivalent to 3 times the gross domestic product per capita, following WHO guidance. Results: Overall costs/costs restricted to 1L treatment were ¥483,771/¥249,619 (cet+CT) and ¥366,036/¥156,802 (bev+CT). Health effects were 3.32/2.68 (cet+CT) and 2.39/1.94 (bev+CT) LYs/QALYs gained. Discounted ICERs for cet+CT vs bev+CT were ¥148,311 and ¥186,517 per LY and QALY gained in deterministic analysis. cet+CT had a 71.8% (LY) and 52.5% (QALY) probability of being cost-effective. Treatment duration with a biologic in 1L, utilities in 3L treatment, and duration of 2L treatment were the main outcome drivers. Conclusions: Projections suggest that cet+CT is cost-effective vs bev+CT for 1L treatment of patients with RAS wt mCRC in China, with ICERs below the current WTP threshold in deterministic and probabilistic sensitivity analyses. [1] Van Oostrum I, et al. Value Health. 2020;23(Suppl 1): S8.


2020 ◽  
Author(s):  
Zhi Peng ◽  
Xingduo Hou ◽  
Yangmu Huang ◽  
Tong Xie ◽  
Xinyang Hua

Abstract Background: In this study, we analyze the cost-effectiveness of fruquintinib as third-line treatment for patients with metastatic colorectal cancer in China, especially after a recent price drop suggested by the National Healthcare Security Administration. Methods: A Markov model was developed to investigate the cost-effectiveness of fruquintinib compared to placebo among patients with metastatic colorectal cancer. Effectiveness was measured in quality-adjusted life years (QALY). The Chinese healthcare payer’s perspective was considered with a lifetime horizon, including direct medical cost (2019 US dollars [USD]). A willing‐to‐pay threshold was set at USD 27,130/QALY, which is three times the gross domestic product (GDP) per capita. We examined the robustness of the model in one-way and probabilistic sensitivity analysis.Results: Fruquintinib was associated with better health outcomes than placebo (0.640 vs 0.478 QALYs) with a higher cost (USD 20750.9 vs USD 12042.2), resulting in an incremental cost-effectiveness ratio (ICER) of USD 53508.7 per QALY. This ICER is 25% lower than the one calculated before the price drop (USD 70952.6 per QALY).Conclusion: After the price negotiation, the drug becomes cheaper and the ICER is lower, but the drug is still not cost effective under the standard of 3 times GDP willing‐to‐pay threshold. For patients with metastatic colorectal cancer in China, fruquintinib is not a cost-effective option under the current circumstances in China.


2020 ◽  
Vol 27 (1) ◽  
pp. 107327482090227
Author(s):  
Jiaqi Han ◽  
Desheng Xiao ◽  
Chongqing Tan ◽  
Xiaohui Zeng ◽  
Huabin Hu ◽  
...  

Background: The FIRE-3 phase III clinical trial demonstrated the marked advantage of prolonging the median overall survival of patients with final RAS wild-type (WT) left-sided metastatic colorectal cancer (mCRC) by 38.3 months after treatment with irinotecan, fluorouracil, and leucovorin (FOLFIRI) plus cetuximab and by 28.0 months after treatment with FOLFIRI plus bevacizumab. However, the substantial cost increase and economic impact of using cetuximab imposes a considerable burden on patients and society. Methods: A Markov model based on the data collected in the FIRE-3 trial was developed to investigate the cost-effectiveness of treating patients with FOLFIRI plus either cetuximab or bevacizumab from the perspective of the Chinese health-care system. Costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios (ICERs) were calculated over a lifetime horizon. One-way and probabilistic sensitivity analyses were performed by varying potentially modifiable parameters. Results: In our analysis, the total treatment costs in the bevacizumab and cetuximab groups were $92 549.31 and $94 987.31, respectively, and the QALYs gained were 1.58 and 2.05. In the base-case analysis, compared with bevacizumab, left-sided RAS WT patients receiving cetuximab gained 0.47 more QALYs at an ICER of $5187.23/QALY ($3166.23/LY). The 1-way sensitivity analysis showed that the most influential parameter was the cost of cetuximab. Probabilistic sensitivity analysis indicated that the cost-effective probability of cetuximab group was 92.8% under the willingness-to-pay threshold of $24 081. Conclusions: Treatment with FOLFIRI plus cetuximab in Chinese patients with left-sided RAS WT mCRC may improve health outcomes and use financial resources more efficiently than FOLFIRI plus bevacizumab.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 6077-6077
Author(s):  
Kristin Berry ◽  
Mark Eliot Bensink ◽  
Zahra Musa ◽  
Veena Shankaran ◽  
Edward H. Lin ◽  
...  

6077 Background: When added to first-line chemotherapy for metastatic colorectal cancer, bevacizumab provides a moderate survival increase, but is associated with significant adverse events and high cost. As only a minority of patients respond to antiangiogenic therapy, a diagnostic that identifies potential responders ex ante could potentially change the benefit to risk profile of bevacizumab and likely improve cost-effectiveness. Since efforts to identify a predictive test have so far been unsuccessful, a novel strategy may be to measure tumor response after bevacizumab treatment initiation using an in vivo biomarker test to guide decisions on whether patients should continue treatment. The objective is to estimate the cost-effectiveness of biomarker-directed use of bevacizumab in first-line treatment of metastatic colorectal cancer compared to standard care. Methods: The analysis takes the perspective of the US healthcare system. A decision model was built to estimate the incremental effect of adding bevacizumab to IFL, FOLFIRI, 5FU/LV and FOLOFOX/XELOX regimens. Survival data, estimated through a meta-analysis of four clinical trials, combined with utilities from the literature were used to calculate quality-adjusted life years (QALYs). Costs were based on Medicare reimbursement and expert opinion. Assumed performance characteristics of the biomarker technology (sensitivity, specificity – provided by our industry partner) were 75% and 95% 10 days after commencement of bevacizumab. Results: The biomarker-directed bevacizumab strategy dominated usual care, providing both an average per patient gain of 0.015 QALYs and a cost-savings of $21,038. The cost-effectiveness of the biomarker technology was most influenced by the cost of the test and colorectal cancer utilities. Variations in biomarker specificity and sensitivity changed the magnitude of cost-savings and benefit gain but did not change the overall result of dominance. Conclusions: Modeling predicts that a validated marker which could identify responders to bevacizumab will save money and improve quality-adjusted life years. The results support additional investment in identifying such a diagnostic.


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