This study was a single-center, randomized, double blind, placebo-controlled, single-dose, dose-increasing study to evaluate the safety, tolerability, PK characteristics, PD effect, and immunogenicity of CM338 injection administered intravenously or subcutaneously at different doses in healthy subjects.
The study included screening period, baseline period, administration and hospitalization observation period, and safety follow-up period. Sixty-six healthy volunteers will be enrolled and randomized into 8 groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
66
PKUCare Luzhong Hospital
Zibo, Shandong, China
Safety : Incidence of Adverse Events (AEs).
Incidence of AEs, including any abnormal physical examinations, abnormal vital signs, abnormal ECG, and abnormal lab testing.
Time frame: Baseline up to Day 57
Pharmacokinetics (PK) parameter : Peak Plasma concentration (Cmax)
Peak Plasma concentration (Cmax)
Time frame: Baseline up to Day 57
Pharmacokinetics (PK) parameter : Time to reach peak concentration (Tmax)
Time to reach peak concentration (Tmax)
Time frame: Baseline up to Day 57
Pharmacokinetics (PK) parameter : Area under the plasma concentration-time curve from 0 to ∞ (AUC0-∞)
Area under the plasma concentration-time curve from 0 to ∞ (AUC0-∞)
Time frame: Baseline up to Day 57
Pharmacokinetics (PK) parameter : Area under the plasma concentration-time curve from 0 to t (AUC0-t)
Area under the plasma concentration-time curve from 0 to t (AUC0-t)
Time frame: Baseline up to Day 57
Pharmacokinetics (PK) parameter : Clearance rate (CL/F)
Clearance rate (CL/F)
Time frame: Baseline up to Day 57
Bioavailability : bioavailability of CM338 with SC
The bioavailability of CM338 with SC
Time frame: Baseline up to Day 57
Pharmacodynamics (PD) : C4b deposition activity of mannose-binding lectin serine protease 2 (MASP-2) in serum.
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C4b deposition activity of mannose-binding lectin serine protease 2 (MASP-2) in serum.
Time frame: Baseline up to Day 57
Pharmacodynamics (PD) : the content of mannose-binding lectin serine protease 2 (MASP-2) in serum.
The content of mannose-binding lectin serine protease 2 (MASP-2) in serum.
Time frame: Baseline up to Day 57
Immunogenicity: Proportion of subjects with anti-drug antibody (ADA).
Proportion of subjects with anti-drug antibody (ADA).
Time frame: Baseline up to Day 57