Ten years of German benefit assessment: price analysis for drugs with unproven additional benefit.

Since 2011, the prices for all new drugs in Germany are negotiated based on a benefit assessment. The purpose of this study was to analyze the price regulation of drugs with unproven additional benefit. Benefit assessment procedures from 2011 to 2020 were reviewed and selected through AMNOG Monitor and Lauer Taxe. Negotiated annual therapy costs, the annual costs of the most cost-efficient appropriate comparative therapy (ACT) and the potential budget impact for 33 included procedures were calculated. 55% of the included drugs achieved a negotiated price higher than the most cost-efficient ACT, 3% were identified as equal and 42% showed lower negotiated prices. The potential savings exceeded expenditures by around EUR 523.5 m. After price flexibility was adopted by the legislator in 2017, the overall potential savings still outweighed the expenditures by around EUR 62 m. Our analysis shows that making price negotiations more flexible by law does not undermine the fundamental aim of the AMNOG, which is to avoid additional expenditure without increased patient benefit. The regulation can thus fulfill the objective provided by the legislature of keeping drugs without proven additional benefits in the German healthcare system.