A Study to Evaluate the Tolerability and Pharmacokinetics of Jiashen Tablets in Healthy Subjects

This study will include a randomized, double-blind, placebo-controlled, single ascending dose design study (Part A), and an open-label SDAD pre-multiple daily ascending dose (MDAD) study (Part B) and an open-label MDAD study (Part C) study.

The study will be conducted in healthy participants and performed at a single study center. 70 healthy participants are planned to be included in the study.

Part A will include six cohorts, 40 participants. Within each cohort, 2 participants will be randomized to receive placebo and other participants randomized to receive Jiashen Tablets. Each participant will receive Jiashen Tablets at the selected dose level or placebo by oral administration in a fasted state once daily.

Part B will include two cohorts, 6 participants, minimum dose group and maximum dose group respectively depending on the findings. Within each cohort, participant will receive Jiashen Tablets at the selected dose level by oral administration in a fasted state once daily.

Part C will include three cohorts, 24 participants. Within each cohort, participant will receive Jiashen Tablets at the selected dose level by oral administration in a fasted state once daily for 7 days.

Inclusion criteria

• Healthy volunteers, half male and half female, aged 18-50 years (including the boundary value), the age difference of the same batch of subjects should not exceed 10 years.
• Have a body mass index of all subjects between 19 and 24kg /m2 (inclusive) and weight of the male subject should be no less than 50Kg and the weight of the female subject should be no less than 45Kg.
• Passed the smoke test, alcohol and drug abuse test, general physical examination and laboratory examination, chest film, ultrasound, electrocardiogram and other physical and chemical tests.
• No history of major diseases, no history of smoking and drinking, negative blood pregnancy test of women of childbearing age and no lactation.
• Obtain informed consent and volunteer to be tested in accordance with the provisions of the Drug clinical trial quality management standard.

Exclusion criteria

• Have primary diseases of cardiovascular，hepatic or renal disease or any other condition. With history of digestive tract diseases, metabolic diseases, and neurological diseases.
• QTc extension (male >430ms, female >450ms).
• History of drug allergy or allergic constitution.
• Family history of hypokalemia, long QT syndrome or other TdP risk factors.
• Mentally or physically disabled.
• Any clinically significant abnormalities in physical examination, biochemical and hematuria routine examination, electrocardiogram, chest film and ultrasound examination,.
• Any positive result on Screening for serum hepatitis B tests (except surface antibodies), hepatitis C antibody , human immunodeficiency virus (HIV) and treponema pallidum antibody test.
• Those who had taken a drug known to damage an organ within 3 months, taken any drug within 2 weeks, and participated in other clinical trials within 4 weeks.
• Bleeding tendency.
• Women during menstruation, pregnancy and lactation.
• Abnormal vital signs (systolic pressure <90mmHg or >140mmHg, diastolic pressure <60mmHg or >90mmHg;Heart rate <60bpm or >100bpm).
• Have smoked more than one cigarette per day or used a considerable amount of nicotine products within the previous 3 months, and could not quit smoking during the experiment. Positive screen for the smoke test.
• Regular drinkers who drank more than 14 units of alcohol per week (1 unit =360mL beer or 45mL spirits with a 40% alcohol content or 150mL wine) during the 6 months prior to the trial, or who tested positive for alcohol, or who do not abstain during the trial.
• Excessive daily consumption of tea, coffee and/or caffeinated beverages (more than 8 cups, 1 cup =250mL) or caffeine test positive.
• Have a history of blood transfusion or donation in the last 3 months (blood volume greater than 200mL).
• Have a history of drug abuse and tested positive for drug abuse (morphine, methamphetamine, ketamine, dimethyldimethamphetamine, THC, cocaine).
• Have a history of antibiotic use in the last month.
• Have taken lactobacillus products (including yogurt) in the last week.
• Judgment by the Investigator that the participant should not participate in the study (such as weak, etc).