Feng Wen1,2, Hanrui Zheng2,3, Pengfei Zhang1,2, Weiting Liao1,2, Kexun Zhou1,2, Qiu Li1,2. 1. Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China. 2. West China Biostatistics and Cost-Benefit Analysis Center, Sichuan University, Chengdu, China. 3. Department of Clinical Pharmacy, West China Hospital, Sichuan University, Chengdu, China.
Abstract
BACKGROUND & AIMS: In patients with unresectable hepatocellular carcinoma (HCC), the combination of atezolizumab and bevacizumab improved progression-free survival (PFS) and overall survival compared with sorafenib in the IMbrave150 trial. However, whether the price of the combination could be affordable is unknown. The current study assessed the cost-effectiveness of the combination of atezolizumab and bevacizumab as first-line systemic therapy for patients with unresectable HCC from the Chinese and American payers' perspective. METHODS: A Markov model was built based on a global, multicentre, open-label, phase III randomized trial (IMbrave150, NCT03434379) that included three states of the patient's health: stable disease (SD), progressive disease (PD) and death. Data for all medical costs were acquired from the Red Book, published literature and West China Hospital. Quality-adjusted life years (QALYs) andincremental cost-effectiveness ratios (ICERs) were the primary outcomes. Sensitivity analyses were performed to evaluate the model uncertainty. RESULTS: The treatment consisting of a combination of atezolizumab and bevacizumab yielded an additional 0.53 QALYs compared with sorafenib alone, leading to an ICER of $145,546.21 per QALY in China and $168,030.21 per QALY in the USA, both beyond the willing-to-pay threshold ($28,527.00/QALY in China and $150,000.00 /QALY in the USA). The utility of the PD state was the most influential factor in the Chinese model, and the American model was the most sensitive to the price of sorafenib. The results of the models were robust across sensitivity analyses. CONCLUSION: The combination of atezolizumab and bevacizumab was not a cost-effective strategy for the first-line systemic treatment of unresectable HCC from the Chinese and American payers' perspective.
RCT Entities:
BACKGROUND & AIMS: In patients with unresectable hepatocellular carcinoma (HCC), the combination of atezolizumab and bevacizumab improved progression-free survival (PFS) and overall survival compared with sorafenib in the IMbrave150 trial. However, whether the price of the combination could be affordable is unknown. The current study assessed the cost-effectiveness of the combination of atezolizumab and bevacizumab as first-line systemic therapy for patients with unresectable HCC from the Chinese and American payers' perspective. METHODS: A Markov model was built based on a global, multicentre, open-label, phase III randomized trial (IMbrave150, NCT03434379) that included three states of the patient's health: stable disease (SD), progressive disease (PD) and death. Data for all medical costs were acquired from the Red Book, published literature and West China Hospital. Quality-adjusted life years (QALYs) and incremental cost-effectiveness ratios (ICERs) were the primary outcomes. Sensitivity analyses were performed to evaluate the model uncertainty. RESULTS: The treatment consisting of a combination of atezolizumab and bevacizumab yielded an additional 0.53 QALYs compared with sorafenib alone, leading to an ICER of $145,546.21 per QALY in China and $168,030.21 per QALY in the USA, both beyond the willing-to-pay threshold ($28,527.00/QALY in China and $150,000.00 /QALY in the USA). The utility of the PD state was the most influential factor in the Chinese model, and the American model was the most sensitive to the price of sorafenib. The results of the models were robust across sensitivity analyses. CONCLUSION: The combination of atezolizumab and bevacizumab was not a cost-effective strategy for the first-line systemic treatment of unresectable HCC from the Chinese and American payers' perspective.
Authors: Chai Hong Rim; Won Jae Lee; Bekhzood Musaev; Ten Yakov Volichevich; Ziyayev Yakhyo Pazlitdinovich; Tillysshaykhov Mirzagaleb Nigmatovich; Jae Suk Rim Journal: Int J Environ Res Public Health Date: 2022-09-17 Impact factor: 4.614