A Study Evaluating the Food Effect on the Pharmacokinetics of SSS17 Capsules in Chinese Healthy Subjects

Inclusion Criteria: 1. Healthy adult subjects aged 18 to 45 years 2. Good health status with no clinically significant medical history. 3. Agreement to use effective contraception from signing ICF until 6 months after trial completion, with no reproductive plan. 4. Voluntarily sign informed consent form (ICF), capable of protocol compliance and scheduled follow-up Exclusion Criteria: 1. Hypersensitivity to investigational drug/excipients. 2. Dysphagia, GI disorders affecting absorption, or relevant surgery history . 3. Intolerance to venipuncture or needle/blood phobia. 4. Clinically significant disorders affecting drug ADME. 5. Clinically significant abnormalities in vital signs/PE/labs/12-lead ECG/chest X-ray at screening. 6. Family history of malignancy or major surgery within 3 months pre-screening. 7. Participation in other drug/device trials with investigational product use within 3 months. 8. Blood donation/loss within 3 months. 9. Special diets (pitaya/grapefruit products) or strenuous exercise within 7 days pre-dosing affecting ADME. 10. Any medication use within 14 days pre-dosing. 11. Regular alcohol \>14 units/week within 3 months. 12. Smoking \>5 cigarettes/day within 3 months or unwilling to abstain during trial. 13. Caffeine products within 48h pre-dosing. 14. Alcohol consumption within 48h or positive alcohol screen. 15. Positive serology for HBsAg, HCV Ab, HIV Ab, or syphilis. 16. Pregnancy/lactation or unprotected sex 17. Positive drug screen, drug abuse history, or drug use within 3 months. 18. Any condition compromising safety/compliance, or investigator's judgment of unsuitability