F230 is a new Class 1 chemical drug jointly developed by Beijing Contini Pharmaceutical Co., Ltd. for the treatment of pulmonary hypertension (Notification number: 2024LP01242, 2024LP01243). The in vitro activity and in vivo toxicology tests of F230, the lead compound for the treatment of PAH developed by Beijing Contini Pharmaceutical Co., LTD., showed that F230 had the same in vitro activity as the endothelin antagonist on the market. The pharmacodynamics of F230 in rats with nephrogenic hypertension induced by Sunitinib showed that F230 could reduce proteinuria and improve renal index.It is expected to bring higher treatment and survival benefits to the corresponding patients. According to the spirit of NMPA new drug approval, on the basis of the completion of preclinical studies of this drug, the safety, tolerability and pharmacokinetic characteristics of single administration and multiple administration of this drug in healthy volunteers should be investigated first, and the influence of food on the pharmacokinetic characteristics of F230 in humans should be investigated, so as to recommend a safe and effective administration regimen for phase II clinical trials.

This study consists of three parts: the first part is a single administration study (SAD test), the second part is a multiple administration study (MAD test), and the third part is a Food Effect study, which is divided into multiple cohorts according to dose groups and administration regimens.

Single Administration Trial (SAD) : This randomized, double-blind, placebo-controlled, dose-increasing, single-center clinical study was designed to evaluate the safety, tolerability, and pharmacokinetic profile of F230 single administration in healthy volunteers. A total of 78 healthy adult volunteers were planned to be included.This part is expected to develop 6 dose groups: 3mg, 6mg, 12mg, 20mg, 30mg, 40mg, and the groups are indicated by A1-A6. Group A1 planned to include 8 healthy volunteers (stratified by sex, A1:F230 tablets: placebo =3:1), and group A2-A6 planned to include 14 healthy volunteers (stratified by sex, F230 tablets: placebo =6:1), increasing from the initial dose group to the maximum dose group, with each group receiving only a single dose.Qualified volunteers who met the inclusion criteria and did not meet the exclusion criteria were admitted to the phase I laboratory one day before the experiment (D-1) and randomly grouped. The researchers conducted education on the environment, regulations, etc., unified dinner, fasting after 21:00, and did not refrain from drinking water. On the day of administration, F230 tablets or placebo were taken orally on an empty stomach. From the night before the start of the trial to the end of the trial evaluation period (A1:D-1 ~ D3/A2-A6:D-1 ~ D2), the volunteers were kept in the phase I research room. During the study period, safety assessment and PK biological sample collection were conducted according to the protocol. Volunteers completed a safety check on day 3(A1)/ day 2(A2-A2-A6), and were allowed to leave the study center after a comprehensive assessment by the investigator, and then returned to the study center onday 4(A1)/ day 3(A2-A2-A6) or by telephone for safety follow-up.

Multiple dose trial (MAD) : It is initially planned to conduct three dose groups, with preset doses of 10 mg, 20 mg, and 30 mg, Qd, administered for 7 consecutive days. Each group will include 14 volunteers (stratified by gender, F230 tablets: placebo = 6:1), with a total of 42 volunteers planned. All volunteers will stay at the research center from the day before administration (D-1) until 72 hours after the last dose (D10). During the study period, safety assessments and PK biological sample collection will be conducted according to the protocol. On the 10th day of the study (D10, 72 hours after the last dose), the procedures and related safety checks specified in the protocol will be completed. Volunteers may leave the research center only after a comprehensive evaluation by the investigator. Subsequently, volunteers will return to the research center or have a safety follow-up by phone on the 11th day of the study (D11, 96 hours after the last dose).

Research on the Effect of Food on Drugs:

This part is a randomized, open, two-cycle, double-cross clinical study design, referred to as the food impact study. According to the preliminary results of SAD study, it is expected to carry out a dose group: 20mg, and a total of 16 healthy volunteers are planned to be included. The volunteers are randomly divided into K-C and C-K groups by stratified block randomization method, taking gender as a stratified factor, and are randomly divided into two groups at 1:1 ratio, with 8 cases in each group.

Qualified volunteers who met both the inclusion criteria and did not meet any of the exclusion criteria were admitted to the Phase I research room 1 day before the experiment (D-1) and randomly grouped. The researchers conducted education on the environment, regulations, etc., unified dinner, and fasting after 21:00 without drinking water. In the first cycle, K-C group was given fasting, C-K group was given within half an hour after eating a high-fat meal, and group exit examination was conducted on day 2 (D2). After 3 days (72h) of elution, the volunteers underwent a second cycle of dosing on day 6 (D6). In the second cycle, K-C group was administered within half an hour after eating a high-fat meal, and C-K group was administered on an empty stomach. Safety assessment and PK biological sample collection will be conducted during the study in accordance with protocol requirements.

Inclusion Criteria:

Volunteers must meet all of the following criteria to be selected:

1. Healthy volunteers, half male and half female, should be replaced by volunteers of the same sex;
2. Age: 18 ~ 45 years old;
3. Weight: male ≥50kg, female ≥45kg, 19≤BMI≤26 (BMI= weight (kg)/height 2 (m2));
4. Pass the comprehensive health examination: vital signs, physical examination, blood urine routine, blood pregnancy, blood glucose, blood lipid, blood electrolyte, hepatitis B surface antigen, liver and kidney function, hepatitis C, HIV and syphilis antibody test, 12-lead electrocardiogram, nicotine, urine drug screening, alcohol breath test, abdominal B-ultrasound, chest X-ray examination, etc., no abnormalities or abnormalities have no clinical significance;
5. Before participating in the study, have a detailed understanding of the nature, significance, possible benefits, possible inconveniences and potential dangers of the trial, and voluntarily participate in this clinical trial, can communicate well with the investigators, comply with the requirements of the entire study, and have the ability to understand and sign the written informed consent.

Exclusion Criteria:

• Volunteers who meet one of the following conditions are not eligible for this study:

  1. Participants in any other clinical trial within three months prior to the trial;
  2. Serum ALT > upper limit of normal (ULN), AST > Upper limit of normal (ULN), TBil > upper limit of normal (ULN);
  3. (Inquiry) Are there any underlying liver diseases, such as chronic hepatitis B, chronic hepatitis C, alcoholic liver disease, moderate to severe non-alcoholic fatty liver disease, liver cirrhosis, etc.;
  4. (Consultation) Have any disease that may affect the safety of the trial or the process of the drug in vivo, including but not limited to: Heart, liver, kidney, endocrine, digestive, immune, respiratory, nervous or psychiatric systems, or other pre-existing or existing diseases of the above systems [especially cardiovascular disease including those at risk for cardiovascular disease, any gastrointestinal disease that interferes with drug absorption (e.g. symptoms of irritable bowel syndrome, history of inflammatory bowel disease), active pathological bleeding (e.g. peptic ulcer), urticaria, epilepsy, epilepsy, etc. Sensitive rhinitis, eczematous dermatitis, asthma, active pulmonary tuberculosis, etc.
  5. (Consultation) Allergy: If there is a history of drug, food allergy or skin allergy;
  6. (Interview) Any drug that inhibits or induces liver metabolism of the drug in the 28 days prior to the use of the study drug (common liver enzyme inducers: barbiturates such as phenobarbital, carbamazepine, aminomide, grofulvin, methylaminopropyl, phenytoin, Grumette, rifampin, dexamethasone; Common liver enzyme inhibitors: chlorpromazine, cimetidine, ciprofloxacin, metronidazole, chloramphenicol, isoniazid, sulfonamide);](streamdown:incomplete-link)