Evaluation of Safety, Tolerability, Pharmacokinetics, Drug-Drug and Food Interactions of Single and Multiple Doses of S-648414 in Healthy Adults

Exclusion Criteria

• •1. Considered by the investigator or subinvestigator (suitably qualified) to be ineligible for the study due to a history of or current condition of significant metabolic or endocrine, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal (GI), urological, immunological, neurological, or psychiatric disorders with clinical manifestations.
• •2. History or presence of cancer in last 5 years except for non-melanoma skin cancers.
• •3. Risk factors for:
• •1. Torsades de Pointes (eg, heart failure, cardiomyopathy, or family history of Long QT Syndrome or Brugada Syndrome)
• •2. Unexplained syncope, sick sinus syndrome, second- or third-degree atrioventricular (AV) block, myocardial infarction, pulmonary congestion, cardiac arrhythmia, angina, prolonged QT interval, or conduction abnormalities
• •4. History of GI surgery or disease including, but not limited to, gastric band/gastric resection and/or intestinal resection and/or duodenal disease (ie, celiac disease) that may result in clinically significant malabsorption (except for an appendectomy).
• •5. History of hypersensitivity or severe side effects induced by a drug.
• •6. Any condition requiring medication and/or other treatment, such as dietary restriction and physical therapy.
• •7. History of significant multiple and/or severe allergic symptoms including food allergy (NOTE: Study participants with seasonal allergies may participate unless they have ongoing symptoms).
• •8. Used drugs or substances known to be inducers or inhibitors of cytochrome P450 enzymes and/or P-glycoprotein within 28 days prior to admission to the CRU.
• •9. Used prescription or over-the-counter (OTC) drugs, antacids, proton pump inhibitors, H2 antagonists, Chinese herbal medicines, oral cannabidiol, vitamins, minerals, herbal, and dietary supplements within 14 days prior to admission to the CRU.
• •10. Refuses to abstain from ingesting caffeine- or xanthine-containing products/medications (eg, coffee, tea, cola drinks, other caffeinated beverages, or chocolate) from 24 hours prior to admission to the CRU or refuses to refrain from consuming such products throughout the study (including Follow-up period).
• •11. Consumed alcohol or used alcohol-containing products within 72 hours prior to admission to the CRU or refuses to refrain from consuming such products throughout the study (including Follow-up period).
• •12. History of recreational drug use in the previous 6 months, or has a history of problematic alcohol use (defined as study participants who regularly consume excessive amounts of alcohol, defined as \> 3 glasses of alcoholic beverages per day (1 glass is approximately equivalent to: beer \[284 mL/10 ounces (oz.)\], wine \[125 mL/4 oz.\] or distilled spirits \[25 mL/1 oz.\]).
• •13. A positive drug or alcohol screen at the Screening visit or upon admission to the CRU.
• •14. Used tobacco- or nicotine-containing products (including cigarette, pipe, cigar, chewing, nicotine patch, nicotine gum, or Vaping product) within 6 months prior to admission to the CRU or refuses to refrain from using tobacco- or nicotine-containing products throughout the study (including Follow-up period).
• •15. Consumed grapefruit, grapefruit juice, Seville orange juice, orange juice, apple juice, vegetables from the mustard green family (eg, kale, broccoli, watercress, collard greens, kohlrabi, Brussels sprouts, mustard greens), or charbroiled meats within 7 days prior to admission to the CRU or refuses to refrain from consuming such products throughout the study (including Follow-up period).
• •16. A corrected QT (QTc) interval of \> 450 msec for males and \> 470 msec for females (Fridericia's method) at the Screening visit or upon admission to the CRU.
• •17. Systolic blood pressure is outside the range of 90 to 140 mm Hg, diastolic blood pressure is outside the range of 50 to 90 mm Hg, or pulse rate is outside the range of 40 to 100 beats per minute (bpm) or considered ineligible by the investigator or subinvestigator at the Screening visit or upon admission to the CRU.
• •18. Total bilirubin, alanine aminotransferase (ALT), or aspartate aminotransferase (AST) values are greater than the upper limit of normal (ULN), or estimated glomerular filtration rate (eGFR) \< 90 mL/min/1.73 m² at Screening or upon admission to the CRU.
• •19. A positive serological test for untreated syphilis, positive hepatitis B surface antigen, positive hepatitis C virus antibody, or positive human immunodeficiency virus (HIV) antigen/antibody result at the Screening visit.
• •20. Participated in any other investigational trials or has been exposed to other investigational drugs within 28 days or 5 half-lives of the previously administered investigational drug (date derived from last study procedure \[blood collection or dosing\] of previous trial), whichever is longer, prior to admission to the CRU.
• •21. Previously received S-648414.
• •22. Poor venous access.
• •23. Donated blood or had significant blood loss within 56 days of study admission to the CRU or donated plasma within 7 days prior to until admission to the CRU.
• •24. Considered inappropriate for participation in the study for any reason by the investigator or subinvestigator.