■本研究比较了药代动力学(PK),免疫原性,和候选托珠单抗生物仿制药的安全性,CT-P47,通过自动注射器(CT-P47AI)或预填充注射器(CT-P47PFS)给药,健康的亚洲成年人。
■在第一阶段,多中心,开放标签研究,参与者以1:1的比例随机分组,分别通过AI或PFS接受1次162mg/0.9mL剂量的CT-P47.主要终点是从时间零到无穷大的浓度-时间曲线下面积(AUC0-inf)和最大血清浓度(Cmax)。如果几何最小二乘平均值(gLSM)的比率的90%置信区间(CI)在预定义的80-125%等效裕度内,则确定PK等效性。二级PK参数,免疫原性,还评估了安全性结果.
■在314名随机分组的参与者中(155名CT-P47AI;159名CT-P47PFS),310人接受了研究药物(153CT-P47AI;157CT-P47PFS)。主要和次要PK结果,两组之间的免疫原性和安全性相似。gLSM比率的90%CI在AUC0-inf(85.87-102.94)和Cmax(82.98-98.16)的预定义当量范围内。
■在健康的亚洲成年人中证明了CT-P47AI和CT-P47PFS之间的PK等效性,两种设备之间具有相当的免疫原性和安全性。
■ClinicalTrials.gov:NCT05617183。
Tocilizumab是一种用于治疗炎症性疾病的生物药物,如类风湿性关节炎。生物仿制药是一种与批准的原始(“参考”)生物药物几乎相同的药物;它与原始药物具有相同的功效和安全性,但通常较便宜。CT-P47正在开发中,作为一种可能的托珠单抗生物仿制药。一些患者更喜欢使用自动注射器(AI)而不是预填充注射器(PFS)进行注射。原因包括易用性和便利性。有了AI,药物通过将设备牢固地按压在皮肤上而自动输送,然而,有了PFS,将针头插入皮肤中,并通过按压柱塞来输送药物。使用PFS注射CT‑P47已显示出相当的药代动力学(即,吸收,体内药物的代谢和排泄)和对托珠单抗的安全性。因此,如果通过AI和PFS给药的CT-P47的药代动力学和安全性显示相似,这可能会扩大患者可用给药设备的选择范围.在这项研究中,310名健康成年人通过AI或PFS接受了一次CT-P47注射。在43天内采集血样以分析药代动力学。吸收,当每个设备给药时,身体对CT-P47的代谢和消除是相似的,提示CT-P47可以通过AI或PFS进行管理。
UNASSIGNED: 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.
UNASSIGNED: 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.
UNASSIGNED: 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).
UNASSIGNED: 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.
UNASSIGNED: ClinicalTrials.gov: NCT05617183.
Tocilizumab is a biologic medicine used to treat inflammatory diseases, such as rheumatoid arthritis. A biosimilar is a drug that is an almost identical copy of an approved original (‘reference’) biologic medicine; it has identical efficacy and safety to the original medicine but is typically less expensive. CT‑P47 is in development as a possible tocilizumab biosimilar.Some patients prefer injections using an auto-injector (AI) rather than a pre-filled syringe (PFS), for reasons including ease of use and convenience. With an AI, medicine is delivered automatically by firmly pressing the device against the skin, whereas, with a PFS, a needle is inserted into the skin and medicine delivered by depressing the plunger. The injection of CT‑P47 using a PFS has shown comparable pharmacokinetics (i.e., the uptake, metabolism and excretion of the drug by the body) and safety to tocilizumab. Therefore, if the pharmacokinetics and safety of CT‑P47 administered via AI and PFS were shown to be similar, this might expand the choice of administration devices available to patients.In this study, 310 healthy adults received a single injection of CT‑P47 via AI or PFS. Blood samples were taken over 43 days to analyze pharmacokinetics. The uptake, metabolism and elimination of CT‑P47 by the body was similar when administered by each device, suggesting that CT‑P47 can be administered by either AI or PFS.