Batch-to-Batch Consistency of SB4 and SB2, Etanercept and Infliximab Biosimilars.

BACKGROUND: Biosimilars must meet stringent regulatory requirements, both at the time of authorization and during their lifecycle. Yet it has been suggested that divergence in quality attributes over time may lead to clinically meaningful differences between two versions of a biologic. Therefore, this study investigated the batch-to-batch consistency across a range of parameters for released batches of the etanercept biosimilar (SB4) and infliximab biosimilar (SB2). METHODS: SB4 (Benepali®) and SB2 (Flixabi®) were both developed by Samsung Bioepis and are manufactured in Europe by Biogen at their facility in Hillerød, Denmark. A total of 120 batches of SB4 and 25 batches of SB2 were assessed for consistency and compliance with specified release parameters, including purity, post-translational glycosylation (SB4 only), protein concentration, and biological activity. RESULTS: The protein concentration, purity, tumor necrosis factor-α (TNF-α) binding, and TNF-α neutralization of all batches of SB4 and SB2 were within the strict specification limits set by regulatory agencies, as was the total sialic acid (TSA) content of all batches of SB4. CONCLUSIONS: Quality attributes of SB4 and SB2 batches showed little variation and were consistently within the rigorous specifications defined by regulatory agencies.

Patient Perceptions and Preferences of Two Etanercept Autoinjectors for Rheumatoid Arthritis: Findings from a Patient Survey in Europe.

INTRODUCTION: Benepali® was the first etanercept (Enbrel®) biosimilar to be approved in the European Union. Both Benepali and Enbrel are available as autoinjector devices. In a recent survey, nurses from France, Germany, Italy, Spain, and the United Kingdom (UK) reported that their patients with rheumatoid arthritis (RA) would prefer the Benepali autoinjector compared to the Enbrel MYCLIC autoinjector. To determine whether patients' perceptions were similar to those of the nurses, this survey evaluated patients' perceptions and preferences of the Benepali autoinjector versus the Enbrel MYCLIC autoinjector in the same five European countries. METHODS: Patients with RA using the Enbrel MYCLIC autoinjector participated in a 25-min, face-to-face questionnaire-interview. Patients were also shown an instructional video and device-handling leaflet, received a live demonstration on the Benepali autoinjector, and had access to both Benepali and Enbrel MYCLIC training autoinjectors. Patients rated the importance of ten autoinjector attributes on a seven-point scale (1 = not important at all; 7 = extremely important) and provided their autoinjector preferences based on specific attributes. Patients also gave their opinion on which autoinjector they would prefer to use for self-injection. RESULTS: Overall, 220 patients participated in the survey (France, n = 30; Germany, n = 65; Italy, n = 67; Spain, n = 12; UK, n = 46). 'Easy to operate the self-injection' was ranked as the most important attribute (mean score of 6.8), followed by 'easy to grip' (6.5), and 'intuitive/self-explaining usage' (6.3). Patients preferred the Benepali autoinjector, with the attribute of 'easier to operate' being a strong differentiator compared to the Enbrel MYCLIC autoinjector. Most patients (74%) reported that they would prefer to use the Benepali autoinjector over the Enbrel MYCLIC autoinjector. 'Easy to operate the self-injection' and 'button-free autoinjector' were key drivers when selecting an autoinjector. CONCLUSIONS: Patients in Europe reported a preference for the Benepali autoinjector compared to the Enbrel MYCLIC autoinjector. This finding is consistent with results from a recently reported nurse survey. FUNDING: Biogen.

Perceptions and Preferences of Two Etanercept Autoinjectors for Rheumatoid Arthritis: A New European Union-Approved Etanercept Biosimilar (Benepali®) Versus Etanercept (Enbrel®) - Findings from a Nurse Survey in Europe.

INTRODUCTION: Enbrel® (etanercept: manufactured by Immunex Corporation, Newbury Park, Thousand Oaks, CA 91320, USA) was the first biological disease-modifying anti-rheumatic drug approved for the treatment of rheumatoid arthritis (RA) in Europe. More recently, an etanercept biosimilar (Benepali®: manufactured by Biogen Inc, Cambridge, MA 02124, USA) was approved in the European Union. The perceptions and preferences of the Benepali autoinjector versus Enbrel MYCLIC autoinjector were evaluated by nurses from Europe. METHODS: The survey involved a 25-min face-to-face questionnaire-interview with nurses from France, Germany, Italy, Spain, and the UK, experienced in training patients on using the Enbrel MYCLIC autoinjector. Nurses viewed an instructional video and device-handling leaflet, received a live demonstration on the Benepali autoinjector and had access to both Benepali and Enbrel MYCLIC training autoinjectors. Nurses rated the importance of ten autoinjector attributes on a scale of 1-7 (1 = not important at all; 7 = extremely important) and provided their autoinjector preferences based on specific attributes. Nurses also gave their opinion on which autoinjector their patients with RA would prefer. RESULTS: A total of 149 nurses participated in this survey (France, n = 30; Germany, n = 40; Italy, n = 30; Spain, n = 19; UK, n = 30). 'Easy to operate the self-injection' was ranked as the most important attribute (mean score of 6.8), followed by 'easy to grip' (6.6) and 'intuitive/self-explaining usage' (6.6). Nurses preferred the Benepali autoinjector, with attributes of 'easier to operate' and 'more intuitive to use' being strong differentiators compared with the Enbrel MYCLIC autoinjector. Most nurses (86%) reported that their patients would prefer the Benepali autoinjector over the Enbrel MYCLIC autoinjector. 'Easy to operate the self-injection' and 'button-free autoinjector' were key drivers when selecting an autoinjector. CONCLUSION: Based on these survey results, nurses in Europe reported a preference for the Benepali autoinjector compared with the Enbrel MYCLIC autoinjector for the majority of attributes assessed. In particular, attributes of 'easy to operate' and 'more intuitive/self-explaining to use' were highly rated for the Benepali autoinjector, which may allow easy handling of the autoinjector. FUNDING: Biogen International GmBH.