ArticleHealth economics review2025
Cost-effectiveness of antibody-drug conjugates in previously treated metastatic triple-negative breast cancer in China.
Article in Health economics review, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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7 authors.
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Abstract
backgroundThe ASCENT and OptiTROP-Breast01 trials indicated that sacituzumab govitecan and sacituzumab tirumotecan significantly improved clinical benefits in metastatic triple-negative breast cancer (TNBC). This study evaluated the cost-effectiveness of trophoblast cell-surface antigen 2 (TROP2)-targeted antibody-drug conjugate (ADC) from the Chinese healthcare system perspective.
methodsA partitioned survival model with 21-day cycles was developed to simulate total costs, life-years, quality-adjusted life-years (QALYs), incremental cost-effectiveness ratio (ICER) over 10-year time horizons. Clinical data was extracted from the ASCENT and OptiTROP-Breast01 trial, costs and utilities were estimated from public bid-winning databases, local charges and published literature. The willingness-to-pay (WTP) threshold was three times gross domestic product per capita in 2024 ($40,334.05). In scenario analysis, models were constructed employing network meta-analyses based on chemotherapy as the reference arm. One-way and probabilistic sensitivity analyses were implemented to examine the robustness of the model.
resultsIn the base-case, the ICERs were $92,593.65/LY and $122,486.54/QALY for sacituzumab tirumotecan, and $348,005.00/LY and $409,219.27/QALY for sacituzumab govitecan compared with chemotherapy. Sacituzumab tirumotecan was dominant versus sacituzumab govitecan by virtue of lower costs and higher QALYs. When the unit costs of sacituzumab tirumotecan and sacituzumab govitecan were lower than $475.12 per 200 mg and $141.54 per 180 mg, they would be cost-effective over chemotherapy. The utility value of progression-free survival state was the most critical role on the base-case result. Probabilistic sensitivity analyses revealed that substantial price reductions for sacituzumab tirumotecan and sacituzumab govitecan could dramatically increase the probabilities of becoming cost-effective.
conclusionSacituzumab tirumotecan and sacituzumab govitecan were unlikely to be cost-effective in previously treated metastatic TNBC. Sacituzumab tirumotecan was the preferred TROP2-targeted ADC in China.
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