This study is divided into two parts: the safety, tolerability, pharmacokinetic profiles of LV232 capsules after multiple ascending doses (hereinafter referred to as "PK characteristics of multiple ascending doses study ") and food effect study (hereinafter referred to as "FE study"). A total of 48 subjects are planned to be enrolled. The two parts of the study can be carried out simultaneously, and there is no order requirement.
PK characteristics of multiple ascending doses study is used randomized, double-blinded, placebo-controlled, single-center design. LV232/Placebo is administered sequentially from low-dose to high-dose and each subject can only orally receive one dose level. There are 3 dose groups (15mg, 40mg and 60mg), 8 subjects will be enrolled in each dose group and the ratio of investigational product to placebo is 3:1. Investigational product is orally administrated QD for day1, day3\~day9. When 7th day visit after last dose (D15) is completed for previous dose group, investigator and sponsor will evaluate the safety and determine whether the next dose group can be started or adjusted. FE study is a single-center, randomized, open-label, three-period crossover design. 24 healthy subjects divided into 2 groups (20mg、60mg) will be enrolled once all eligibility criteria are met after screening within 14 days prior to investigation product administration. Informed consent should be obtained before any protocol defined procedures can be started.Investigational product administration plan given below: 12 healthy subjects in each group will be randomized to 3 sub-groups, i.e., Group A, Group B, Group C, with 4 subjects in each sub-group. For group A, investigation product will be given after fasting for Period 1, after standard diet for Period 2, and after high-fat diet for Period 3; For group B, investigation product will be given after high-fat diet for Period 1, after fasting for Period 2, and after standard diet for Period 3; For group C, investigation product will be given after standard diet for Period 1, after high-fat diet for Period 2, and after fasting for Period 3. The wash-out period is 5 days.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
49
Drug: LV232 15mg Group: 6 subjects will receive LV232 15mg, orally; Other Names:Placebo 2 subjects will receive placebo, orally. Drug: LV232 40mg Group: 6 subjects will receive LV232 40mg, orally; Other Names:Placebo 2 subjects will receive placebo, orally. Drug: LV232 60mg Group: 6 subjects will receive LV232 60mg, orally; Other Names:Placebo 2 subjects will receive placebo, orally.
Drug: LV232 20mg Group: 12 subjects will receive LV232 20mg, orally Drug: LV232 60mg Group: 12 subjects will receive LV232 60mg, orally
Shanghai Xuhui Central Hospital
Shanghai, China
Tmax
Maximum observed plasma concentration
Time frame: Calculated using concentration data collected from predose to 72 hours postdose
Cmax
Maximum observed plasma concentration
Time frame: Calculated using concentration data collected from predose to 72 hours postdose
T1/2
Terminal half life
Time frame: Calculated using concentration data collected from predose to 72 hours postdose
AUC0-t
Area under the serum concentration time profile from time zero to the time of the last quantifiable concentration
Time frame: Calculated using concentration data collected from predose to 72 hours postdose
AUC0-24h
Area under the serum concentration time profile from time zero to the time of 24h
Time frame: Calculated using concentration data collected from predose to 24 hours postdose
AUC0-∞
Area under the plasma concentration-time curve from time 0 extrapolated to infinity
Time frame: Calculated using concentration data collected from predose to 72 hours postdose
Number of participants with treatment emergent treatment-related adverse event(s)
Frequency, severity and causal relationship of treatment emergent adverse events
Time frame: Dosing through follow-up call (7 days after last dose of investigational product)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Laboratory test
Number of participants with laboratory test findings of potential clinical importance
Time frame: Dosing through follow-up call (7 days after last dose of investigational product)
Vital signs
Number of participants with vital signs findings of potential clinical importance
Time frame: Dosing through follow-up call (7 days after last dose of investigational product)
Number of participants with ECG findings of potential clinical importance
Number of subjects with change from baseline in electrocardiogram (ECG) parameters
Time frame: Dosing through follow-up call (7 days after last dose of investigational product)