LAUSR

BACKGROUND Biosimilar adalimumabs have improved treatment access, but without any clinical advantage, distributors rely on delivery device design-enhancements, support services, and removal of painful excipients to capture market share. Prescribers, however, are often unaware of these differences. This article compares and contrasts originator versus biosimilar adalimumab agents to identify key differences that might influence adalimumab selection. RESEARCH DESIGN AND METHODS We reviewed listed adalimumab biosimilars in Australia and compared them to originator adalimumab. Similarities and differences identified were confirmed with the manufacturers via two rounds of interviews: the first to collate a list of features and benefits of their product, the second to consolidate and confirm the data. RESULTS The originator adalimumab Humira [by AbbVie, USA] and 4 adalimumab biosimilars (Amgevita [by Amgen, USA], Hadlima [by Organon, USA], Hyrimoz [by Sandoz, Switzerland] and Idacio [by Fresenius Kabi, Germany]) are included in this review. Key differences identified include product formulation, dosages available, delivery devices, physician support, patient support and the supply of other biosimilar products by the company. CONCLUSION Adalimumab biosimilars are different from each other with unique advantages and disadvantages likely to influence prescriber and patients. Therefore, the choice of agent should be individualized to the needs of the patient and the healthcare service.