ArticleBMJ open2024
Atezolizumab monotherapy as first-line treatment for non-small cell lung cancer ineligible for treatment with a platinum-containing regimen (IPSOS): a cost-effectiveness analysis in the USA.
Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Not yet cited in PubMed.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase III, Open Label, Randomized Study of Atezolizumab (Anti-PD-L1 Antibody) Compared With a Platinum Agent (Cisplatin or Carboplatin) in Combination With Either Pemetrexed or Gemcitabine for PD-L1-Selected, Chemotherapy-Naive Patients With Stage IV Non-Squamous Or Squamous Non-Small Cell Lung Cancer
A Phase III, Open-Label, Multicenter, Randomized Study to Investigate the Efficacy and Safety of Atezolizumab Compared With Chemotherapy in Patients With Treatment Naïve Advanced or Recurrent (Stage IIIb Not Amenable for Multimodality Treatment) or Metastatic (Stage IV) Non-Small Cell Lung Cancer Who Are Deemed Unsuitable for Platinum-Containing Therapy
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Abstract
objectiveThis study explores the cost-effectiveness of atezolizumab monotherapy compared with chemotherapy as first-line treatment for stage IIIB or IV non-small cell lung cancer (IIIB/IV-NSCLC) ineligible for platinum-based chemotherapy from a US payer perspective.
designThis is based on the IPSOS clinical trial. We conducted a comprehensive assessment of the cost-effectiveness of atezolizumab monotherapy versus single-agent chemotherapy over a 15-year duration. Employing a robust Markov model incorporating data from 453 patients, we calculated total costs, life-years (LYs), quality-adjusted life-years (QALYs) and the incremental cost-effectiveness ratio (ICER) at a willingness-to-pay (WTP) threshold of $150 000 per QALY. We performed one-way, two-way and probabilistic sensitivity analyses to validate our model.
settingThe US payer perspective.
participantsA cohort with NSCLC ineligible for treatment with a platinum-containing regimen from IPSOS clinical trial.
interventionsAtezolizumab monotherapy versus chemotherapy. PRIMARY OUTCOME MEASURE: Cost, QALYs, LYs and ICER.
resultChemotherapy resulted in an average survival of 0.930 QALYs (1.528 LYs) per patient at an average cost of $67 579. Atezolizumab treatment provided an additional 0.309 QALYs but incurred an extra cost of $66 472, leading to an ICER of $215 069 per QALY compared with chemotherapy. The cost of atezolizumab had the most significant impact on the model outcomes. Probabilistic sensitivity analysis showed that atezolizumab had a 30.2% probability of being considered cost-effective at a WTP threshold of $150 000 per QALY in the USA. These results remained consistent across various scenarios and sensitivity analyses employing both deterministic and probabilistic approaches.
conclusionThe current price of atezolizumab renders it an unlikely cost-effective treatment option for patients with IIIB/IV-NSCLC from the payer's perspective in the USA. To achieve cost-effectiveness, substantial discounts are necessary. TRIAL REGISTRATION NUMBER: The IMpower-110, an open-label, randomised, phase 3 clinical trial (NCT02409342). The IPSOS clinical trial (NCT03191786).
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