Abstract
e20644 Background: Costs (C) and values (V) of the check point inhibitors antibodies have not been compared. Our objectives were to weigh and compare C and V of Nivolumab (Nivo), Atezolizumab (Atezo) and Pembrolizumab (Pembro) vs. Docetaxel (Doc) in 2nd-line non-small-cell lung cancer (NSCLC). Methods: Median overall survival gain over control (OS), hazard ratios (HR), doses and prices posted by parent companies were quoted. Probability of survival (PoS) was calculated as (1.0- HR). Values were computed at 4-week (w) as 4wC/PoS and one-year as C/life-year gain (LYG). Results: Doc OS was 72 days, HR not reported, generic 4wC < $500 and C/LYG 26,896. In comparison, in non-enriched non-squamous (sq-) Nivo C/LYG was 558,313, Atezo 618,244, Pembro 659,059. Nivo OS was 84, HR 0.73, 4wC $10,021 and 4wV 37,115 improving in > 10% PD-L1 positive to OS 264, HR 0.27 and 4wV 13,727. Atezo OS was 87, HR 0.73, 4wC $11,493 and 4wV 42,567 improving in medium- high PD-L1 to 150, 0.46 and 4wV 21,283 respectively. Pembro demonstrated OS 57, HR 0.71, 4wC $8,027 and 4wV 27,679 improving in > 50% PD-L1 to 201, 0.54 and 4wV 17,450. Conclusions: Doc, without accounting for adverse events and quality of life, remains a valuable drug in 2nd-line NSCLC. In PD-L1- enriched non-sq, Nivo, Atezo and Pembro consistently demonstrated marked V improvement to justify their C. The limited available data and the inherent problems of drug comparison preclude favoring one ICPIA over another.
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