A Phase 1, Randomized, Double-Blind, Single-Ascending-Dose, and Food Effect Study to Assess the Safety, Tolerability, Ventricular Repolarization, and Pharmacokinetics of S-648414 in Healthy Adult Study Participants (Part 1); A Phase 1, Randomized, Double-Blind, Multiple-Ascending-Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of S-648414 and A Drug-Drug Interaction Study With the CYP3A Substrate, Midazolam, in Healthy Adult Study Participants (Part 2)
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 发起方
- 入组人数
- 98
- 试验地点
- 2
- 主要终点
- Part 1: Number of Participants With Treatment-emergent Adverse Events (TEAEs)
研究概览
简要总结
The primary objective of Part 1 of the study is to evaluate the safety and tolerability of S-648414 after administration of a single oral dose of S-648414 in healthy adult study participants.
The primary objective of Part 2 is to evaluate the safety and tolerability of S-648414 after administration of multiple oral doses of S-648414 in healthy adult study participants.
The primary objectives of Part 3 are evaluate the safety and tolerability of S-648414 after administration of multiple oral doses of S-648414 in healthy adult study participants, and to evaluate the effect of S-648414 on the pharmacokinetics (PK) of dolutegravir and the effect of dolutegravir on the PK of S-648414 in healthy adult study participants.
详细描述
Amendment 2 of the study Protocol added a third part (Part 3) to the study. The revised Official Title for the Protocol is:
"A Phase 1, Randomized, Double-Blind, Single-Ascending-Dose, and Food Effect Study to Assess the Safety, Tolerability, Ventricular Repolarization, and Pharmacokinetics of S-648414 in Healthy Adult Study Participants (Part 1); A Phase 1, Randomized, Double-Blind, Multiple-Ascending-Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of S-648414 and A Drug-Drug Interaction Study with the CYP3A Substrate, Midazolam, in Healthy Adult Study Participants (Part 2); and A Phase 1 Open-Label Study to Assess the Effect of S-648414 on the Pharmacokinetics of Dolutegravir and the Effect of Dolutegravir on the Pharmacokinetics of S-648414 in Healthy Adult Study Participants (Part 3)"
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Sequential
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
盲法说明
Parts 1 and 2 were blinded studies. Part 3 was an open-label study and, therefore, did not include blinding.
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Male or female adults ≥ 18 years in USA or ≥ 20 years in Japan to ≤ 55 years of age, at the time of signing the informed consent form (ICF).
- •a) Specific to Japan sites: enrollment in Part 3 (Group I and J) will consist of only White or Black or African American race.
- •Capable of giving signed informed consent
- •Body mass index (BMI) ≥ 18.5 to < 32.0 kg/m² at the Screening visit．
- •Considered medically healthy as determined by the investigator or subinvestigator (suitably qualified), based on medical history and clinical evaluations including physical examination, clinical laboratory tests, vital sign measurements, and 12-lead electrocardiogram (ECG) at Screening and at upon admission to the Clinical Research Unit (CRU) and prior to administration of study intervention on Day
- •Female study participants must not be a woman of childbearing potential and must either be postmenopausal (defined as no menses for 12 months without an alternative medical cause; follicle-stimulating hormone (FSH) to be tested for confirmation at Screening) or premenopausal with 1 of the following documented: hysterectomy, tubal ligation, bilateral salpingectomy, or bilateral oophorectomy.
- •Male study participants must agree to use contraception during the treatment period and for at least 3 months after the last dose of study intervention.
排除标准
- •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.
- •History or presence of cancer in last 5 years except for non-melanoma skin cancers.
- •Risk factors for:
- •Torsades de Pointes (eg, heart failure, cardiomyopathy, or family history of Long QT Syndrome or Brugada Syndrome)
- •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
- •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).
- •History of hypersensitivity or severe side effects induced by a drug.
- •Any condition requiring medication and/or other treatment, such as dietary restriction and physical therapy.
- •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).
- •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.
- •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.
- •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).
- •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).
- •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.]).
- •A positive drug or alcohol screen at the Screening visit or upon admission to the CRU.
- •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).
- •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).
- •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.
- •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.
- •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.
- •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.
- •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.
- •Previously received S-
- •Poor venous access.
- •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.
- •Considered inappropriate for participation in the study for any reason by the investigator or subinvestigator.
研究组 & 干预措施
Part 1: 30 mg S-648414
Participants received a single oral dose of 30 mg S-648414 in a fasted state on Day 1.
干预措施: S-648414 (Drug)
Part 1: Placebo
Participants received a single oral dose of matching placebo in a fasted state on Day 1.
干预措施: Placebo (Drug)
Part 1: 10 mg S-648414
Participants received a single oral dose of 10 mg S-648414 in a fasted state on Day 1.
干预措施: S-648414 (Drug)
Part 1: 100 mg S-648414
Participants received a single oral dose of 100 mg S-648414 in a fasted state on Day 1 followed by a single dose of S-648414 in a fed state (after a high-fat meal) on Day 14.
干预措施: S-648414 (Drug)
Part 1: 250 mg S-648414
Participants received a single oral dose of 250 mg S-648414 in a fasted state on Day 1.
干预措施: S-648414 (Drug)
Part 1: 500 mg S-648414
Participants received a single oral dose of 500 mg S-648414 in a fasted state on Day 1.
干预措施: S-648414 (Drug)
Part 1: 1000 mg S-648414
Participants received a single oral dose of 1000 mg S-648414 in a fasted state on Day 1.
干预措施: S-648414 (Drug)
Part 2: Placebo + Midazolam
Participants received matching placebo once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the placebo dose on Day 14.
干预措施: Placebo (Drug)
Part 2: Placebo + Midazolam
Participants received matching placebo once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the placebo dose on Day 14.
干预措施: Midazolam (Drug)
Part 2: 50 mg S-648414 + Midazolam
Participants received 50 mg S-648414 once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the S-648414 dose on Day 14.
干预措施: S-648414 (Drug)
Part 2: 50 mg S-648414 + Midazolam
Participants received 50 mg S-648414 once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the S-648414 dose on Day 14.
干预措施: Midazolam (Drug)
Part 2: 30 mg S-648414 + Midazolam
Participants received 30 mg S-648414 once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the S-648414 dose on Day 14.
干预措施: S-648414 (Drug)
Part 3: 100 mg S-648414 + Dolutegravir
Participants received 50 mg dolutegravir orally once a day on Days 1 to 7, 100 mg S-648414 orally once a day on Days 15 to 21, and 50 mg dolutegravir co-administered with 100 mg S-648414 orally once a day on Days 22 to 28.
干预措施: S-648414 (Drug)
Part 3: 100 mg S-648414 + Dolutegravir
Participants received 50 mg dolutegravir orally once a day on Days 1 to 7, 100 mg S-648414 orally once a day on Days 15 to 21, and 50 mg dolutegravir co-administered with 100 mg S-648414 orally once a day on Days 22 to 28.
干预措施: Dolutegravir (Drug)
Part 3: 200 mg S-648414 + Dolutegravir
Participants received 50 mg dolutegravir orally once a day on Days 1 to 7, 200 mg S-648414 orally once a day on Days 15 to 21, and 50 mg dolutegravir co-administered with 200 mg S-648414 orally once a day on Days 22 to 28.
干预措施: S-648414 (Drug)
Part 3: 200 mg S-648414 + Dolutegravir
Participants received 50 mg dolutegravir orally once a day on Days 1 to 7, 200 mg S-648414 orally once a day on Days 15 to 21, and 50 mg dolutegravir co-administered with 200 mg S-648414 orally once a day on Days 22 to 28.
干预措施: Dolutegravir (Drug)
Part 2: 30 mg S-648414 + Midazolam
Participants received 30 mg S-648414 once a day on Days 1 to 14 and a single oral dose of 5 mg midazolam alone on Day -2 and co-administered with the S-648414 dose on Day 14.
干预措施: Midazolam (Drug)
结局指标
主要结局
Part 1: Number of Participants With Treatment-emergent Adverse Events (TEAEs)
时间窗: From dosing on Day 1 or Day 14 up to 10 days post dose
A TEAE is any event not present before exposure to study drug or any event already present that worsens after exposure to study drug. A serious adverse event is any untoward medical occurrence that resulted in death, was life-threatening, required or prolonged inpatient hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect, or other event that may have jeopardized the participant or required intervention to prevent one of the outcomes above. The investigator assessed the intensity of each AE according to the following: Grade 1 (Mild): No or minimal interference with usual activities. Grade 2 (Moderate): More than minimal interference with usual activities, intervention indicated. Grade 3 (Severe): Inability to perform usual activities, intervention or hospitalization indicated. Grade 4 (Potentially life-threatening): Inability to perform self-care, intervention indicated to prevent permanent impairment, disability, or death.
Part 2: Number of Participants With Treatment-emergent Adverse Events
时间窗: From the first dose up to 10 days after end of dosing (25 days); A TEAE was summarized to a given treatment if the event onset/worsening occurred any time after the dose of that treatment and before the dose of the next treatment.
A TEAE is any event not present before exposure to study drug or any event already present that worsens after exposure to study drug. A serious adverse event is any untoward medical occurrence that resulted in death, was life-threatening, required or prolonged inpatient hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect, or other event that may have jeopardized the participant or required intervention to prevent one of the outcomes above. The investigator assessed the intensity of each AE according to the following: Grade 1 (Mild): No or minimal interference with usual activities. Grade 2 (Moderate): More than minimal interference with usual activities, intervention indicated. Grade 3 (Severe): Inability to perform usual activities, intervention or hospitalization indicated. Grade 4 (Potentially life-threatening): Inability to perform self-care, intervention indicated to prevent permanent impairment, disability, or death.
Part 3: Apparent Total Clearance (CL/F) of S-648414
时间窗: Day 21 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 12 hours postdose. Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.
The effect of dolutegravir on the pharmacokinetics (PK) of S-648414 was assessed after administration of multiple oral doses of S-648414 alone (Day 21) and after administration of multiple oral doses of S-648414 co-administered with dolutegravir (Day 28). Apparent total clearance was calculated as CL/F = Dose/AUC0-τ
Part 3: Number of Participants With Treatment-emergent Adverse Events
时间窗: From the first dose up to Day 36; A TEAE was summarized to a given treatment if the event onset/worsening occurred any time after the dose of that treatment and before the dose of the next treatment.
A TEAE is any event not present before exposure to study drug or any event already present that worsens after exposure to study drug. A serious adverse event is any untoward medical occurrence that resulted in death, was life-threatening, required or prolonged inpatient hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect, or other event that may have jeopardized the participant or required intervention to prevent one of the outcomes above. The investigator assessed the intensity of each AE according to the following: Grade 1 (Mild): No or minimal interference with usual activities. Grade 2 (Moderate): More than minimal interference with usual activities, intervention indicated. Grade 3 (Severe): Inability to perform usual activities, intervention or hospitalization indicated. Grade 4 (Potentially life-threatening): Inability to perform self-care, intervention indicated to prevent permanent impairment, disability, or death.
Part 3: Area Under the Concentration-time Curve Over the Dosing Interval τ (AUC0-τ) for S-648414
时间窗: Day 21 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 12 hours postdose. Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.
The effect of dolutegravir on the pharmacokinetics (PK) of S-648414 was assessed after administration of multiple oral doses of S-648414 alone (Day 21) and after administration of multiple oral doses of S-648414 co-administered with dolutegravir (Day 28). Area under the concentration-time curve over the dosing interval τ (24 hours) was calculated by the linear up/log down trapezoidal method.
Part 3: Plasma Concentration of Dolutegravir at the End of the Dosing Interval τ (Cτ)
时间窗: Day 8 and Day 29 (24 hours post-dosing on Day 7 and Day 28).
The effect of S-648414 on the PK of dolutegravir was assessed after administration of multiple oral doses of dolutegravir alone and after administration of multiple oral doses of S-648414 co-administered with dolutegravir.
Part 3: Area Under the Concentration-time Curve Over the Dosing Interval τ (AUC0-τ) for Dolutegravir
时间窗: Day 7 and Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours postdose.
The effect of S-648414 on the PK of dolutegravir was assessed after administration of multiple oral doses of dolutegravir alone and after administration of multiple oral doses of S-648414 co-administered with dolutegravir. Area under the concentration-time curve over the dosing interval τ (24 hours) was calculated by the linear up/log down trapezoidal method.
Part 3: Apparent Total Clearance (CL/F) of Dolutegravir
时间窗: Day 7 and Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours postdose.
The effect of S-648414 on the PK of dolutegravir was assessed after administration of multiple oral doses of dolutegravir alone and after administration of multiple oral doses of S-648414 co-administered with dolutegravir. Apparent total clearance calculated as CL/F =Dose/AUC0-τ
Part 3: Maximum Plasma Concentration (Cmax) of S-648414
时间窗: Day 21 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 12 hours postdose. Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.
The effect of dolutegravir on the pharmacokinetics (PK) of S-648414 was assessed after administration of multiple oral doses of S-648414 alone (Day 21) and after administration of multiple oral doses of S-648414 co-administered with dolutegravir (Day 28).
Part 3: Plasma Concentration of S-648414 at the End of the Dosing Interval τ (Cτ)
时间窗: Day 22 and Day 29 (24 hours post-dosing on Days 21 and 28)
The effect of dolutegravir on the pharmacokinetics (PK) of S-648414 was assessed after administration of multiple oral doses of S-648414 alone (Day 21) and after administration of multiple oral doses of S-648414 co-administered with dolutegravir (Day 28).
Part 3: Time to Maximum Plasma Concentration (Tmax) of S-648414
时间窗: Day 21 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 12 hours postdose. Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.
The effect of dolutegravir on the pharmacokinetics (PK) of S-648414 was assessed after administration of multiple oral doses of S-648414 alone (Day 21) and after administration of multiple oral doses of S-648414 co-administered with dolutegravir (Day 28).
Part 3: Time to Maximum Plasma Concentration (Tmax) of Dolutegravir
时间窗: Day 7 and Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours postdose.
The effect of S-648414 on the PK of dolutegravir was assessed after administration of multiple oral doses of dolutegravir alone and after administration of multiple oral doses of S-648414 co-administered with dolutegravir.
Part 3: Maximum Plasma Concentration (Cmax) of Dolutegravir
时间窗: Day 7 and Day 28 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours postdose.
The effect of S-648414 on the PK of dolutegravir was assessed after administration of multiple oral doses of dolutegravir alone and after administration of multiple oral doses of S-648414 co-administered with dolutegravir.
次要结局
- Part 2: Maximum Plasma Concentration (Cmax) of S-648414 Following Single and Multiple-dose Administration(Day 1 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose; Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72, and 96 hours postdose.)
- Part 2: Time to Maximum Plasma Concentration (Tmax) of S-648414 Following Single and Multiple-dose Administration(Day 1 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose; Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72, and 96 hours postdose.)
- Part 1: Maximum Plasma Concentration (Cmax) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Time to Maximum Plasma Concentration (Tmax) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Concentration After Dosing (AUC0-last) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Area Under the Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Terminal Elimination Half-life (t1/2,z) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Terminal Elimination Rate Constant (λz) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Mean Residence Time (MRT) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Apparent Total Clearance (CL/F) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Apparent Volume of Distribution in the Terminal Elimination Phase (Vz/F) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72 and 96 hours postdose.)
- Part 1: Fraction of S-648414 Dose Excreted in Urine From 0 to 96 Hours Postdose (Feu0-96)(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose (-12 to 0 hours), 0 to 24 hours, 24 to 48 hours, 48 to 72 hours, and 72 to 96 hours postdose)
- Part 1: Renal Clearance (CLR) of S-648414(Day 1 and Day 14 (for participants in the 100 mg dose group only) predose (-12 to 0 hours), 0 to 24 hours, 24 to 48 hours, 48 to 72 hours, and 72 to 96 hours postdose)
- Part 2: Area Under the Concentration-time Curve Over the Dosing Interval τ (AUC0-τ) of S-648414 Following Single and Multiple-dose Administration(Day 1 and day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Terminal Elimination Half-life (t1/2,z) of S-648414 Following Multiple-dose Administration(Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72, and 96 hours postdose.)
- Part 2: Terminal Elimination Rate Constant (λz) of S-648414 Following Multiple-dose Administration(Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72, and 96 hours postdose.)
- Part 2: Apparent Total Clearance (CL/F) of S-648414 Following Multiple-dose Administration(Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Apparent Volume of Distribution in the Terminal Elimination Phase (Vz/F) of S-648414 Following Multiple-dose Administration(Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, 24, 48, 72, and 96 hours postdose.)
- Part 2: Fraction of S-648414 Dose Excreted in Urine Over the Dosing Interval (Feu0- τ) Following Multiple-dose Administration(Day 14 0-24 hours postdose)
- Part 2: Renal Clearance (CLR) of S-648414 Following Multiple-dose Administration(Day 14 0-24 hours postdose)
- Part 2: Maximum Plasma Concentration (Cmax) of Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Time to Maximum Plasma Concentration of Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Concentration After Dosing (AUC0-last) for Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Area Under the Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Terminal Elimination Half-life for Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 2: Terminal Elimination Rate Constant for Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 1: Change From Baseline in PR Interval(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Change From Baseline in QRS Interval(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 2: Mean Residence Time for Midazolam(Day -2 and Day 14 predose (0 hours), 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12, and 24 hours postdose.)
- Part 1: Number of Participants With Recorded Outlier Values for QTcF, HR, PR, and QRS(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Change From Baseline in Fridericia's Corrected QT Interval (QTcF)(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Parts 1: Change From Baseline in Heart Rate (HR)(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Placebo-corrected Change From Baseline in Fridericia's Corrected QT Interval(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Placebo-corrected Change From Baseline in PR Interval(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Placebo-corrected Change From Baseline in Heart Rate(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Placebo-corrected Change From Baseline in QRS Duration(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)
- Part 1: Number of Participants With Treatment-emergent Changes for T-wave Morphology and U-wave Presence(Day 1: Predose at 3 time points (-45, -30 and -15 minutes), and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, and 24 hours postdose.)