Pharmacokinetics and safety of candidate tocilizumab biosimilar CT-P47 administered by auto-injector or pre-filled syringe: a randomized, open‑label, single-dose phase I study.
Kyung-Sang Yu, Hyunwook Ryu, Dongseong Shin, MinKyu Park, JunGi Hwang, Seol Ju Moon, Min-Gul Kim, Edward Keystone, Josef S Smolen, SungHyun Kim, YunJu Bae, DaBee Jeon, JiYoung Jang, GoEun Yang, JiHun Bae, JaeYong Lee, Gerd R Burmester
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Abstract
Background: This study compared the pharmacokinetics (PK), immunogenicity, and safety of candidate tocilizumab biosimilar, CT-P47, administered via auto-injector (CT-P47 AI) or pre-filled syringe (CT-P47 PFS), in healthy Asian adults.
Research design and methods: In this phase I, multicenter, open-label study, participants were randomized 1:1 to receive a single 162 mg/0.9 mL dose of CT-P47 via AI or PFS. Primary endpoints were area under the concentration - time curve from time zero to infinity (AUC0-inf) and maximum serum concentration (Cmax). PK equivalence was determined if 90% confidence intervals (CIs) for the ratios of geometric least-squares means (gLSMs) were within the predefined 80-125% equivalence margin. Secondary PK parameters, immunogenicity, and safety outcomes were also assessed.
Results: Of 314 participants randomized (155 CT-P47 AI; 159 CT-P47 PFS), 310 received the study drug (153 CT-P47 AI; 157 CT-P47 PFS). Primary and secondary PK results, immunogenicity and safety were similar between groups. Ninety percent CIs for the ratio of gLSMs were within the predefined equivalence margin for AUC0-inf (85.87-102.94) and Cmax (82.98-98.16).
Conclusions: PK equivalence between CT-P47 AI and CT-P47 PFS was demonstrated in healthy Asian adults, with comparable immunogenicity and safety between the two devices.
期刊介绍：
Expert Opinion on Biological Therapy (1471-2598; 1744-7682) is a MEDLINE-indexed, international journal publishing peer-reviewed research across all aspects of biological therapy.
Each article is structured to incorporate the author’s own expert opinion on the impact of the topic on research and clinical practice and the scope for future development.
The audience consists of scientists and managers in the healthcare and biopharmaceutical industries and others closely involved in the development and application of biological therapies for the treatment of human disease.
The journal welcomes:
Reviews covering therapeutic antibodies and vaccines, peptides and proteins, gene therapies and gene transfer technologies, cell-based therapies and regenerative medicine
Drug evaluations reviewing the clinical data on a particular biological agent
Original research papers reporting the results of clinical investigations on biological agents and biotherapeutic-based studies with a strong link to clinical practice
Comprehensive coverage in each review is complemented by the unique Expert Collection format and includes the following sections:
Expert Opinion – a personal view of the data presented in the article, a discussion on the developments that are likely to be important in the future, and the avenues of research likely to become exciting as further studies yield more detailed results;
Article Highlights – an executive summary of the author’s most critical points.
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