A Study to Investigate the Appearance and Disappearance of ASP3652 in Blood and Spinal Fluid in Healthy Male Subjects
A Phase I, Open-label Study to Investigate the Safety, Tolerability and Plasma and Cerebrospinal Fluid Pharmacokinetics and Pharmacodynamics of Multiple Doses of ASP3652 in Healthy Young Caucasian Male Subjects
研究概览
详细说明
Screening takes place between Day -22 to Day -2. Subjects are admitted to the clinical on Day -1 and remain until Day 12.
On Days 5 to 9, subjects receive twice-daily doses of ASP3652, and a single dose on the morning of Day 10. Subjects fast for 10h before the morning dose on Days 5 to 9 and they are served the first standard meal 1h after the morning dose.
A spinal tap is used to collect cerebrospinal fluid (CSF) on Day 1 and Day 10. A plasma sample for PK sample is obtained before first dosing on Day 5. To confirm steady-state concentrations of ASP3652 in plasma, blood samples are obtained before the morning dose on Days 7, 9 and 10, and before the evening dose on Days 5, 7 and 9. On Day 10, a PK profile of ASP3652 in plasma is obtained for up to 48h after the morning dose and for up to 24h in CSF.
Profiles of several enzyme substrates in plasma and seminal fluid (exploratory) are obtained on Day 1 and Day 10 up to 24h in CSF and up to 48h in plasma, before the morning and evening dose on Days 5, 7 and 9 in plasma.
Vital signs, 12-lead electrocardiograms (ECGs), safety laboratory assessments, adverse events (AEs) and concomitant medication are monitored throughout the investigational period until the ESV.
研究类型
注册 (实际的)
阶段
- 阶段1
联系人和位置
学习地点
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Harrow、英国、HA1 3UJ
- PAREXEL Early Phase Clinical Unit
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Subject is white and of Caucasian origin.
- Body Mass Index more than or equal to 18.5 and less than 30.0 kg/m2.
- Male subject must agree to practice an adequate contraceptive method with female sexual partners to prevent pregnancy.
Exclusion Criteria:
- Known or suspected hypersensitivity to ASP3652 or any components of the formulation used.
- History of excessive bleeding or bruising.
- Abnormalities of coagulation screen including platelet count, prothrombin time (PT) and activated partial thromboplastin time (aPTT).
学习计划
研究是如何设计的？
设计细节
- 主要用途：基础科学
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：1: ASP3652
Multiple doses of ASP3652
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口服
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研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
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Pharmacokinetics (PK) of ASP3652 in plasma measured by area under the plasma concentration-time curve in the dosing interval (AUCtau)
大体时间：Days 5, 7 and 9, and Days 10 - 12
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Days 5, 7 and 9, and Days 10 - 12
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PK of ASP3652 in plasma measured by maximum observed plasma concentration (Cmax)
大体时间：Days 5, 7 and 9, and Days 10 - 12
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Days 5, 7 and 9, and Days 10 - 12
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PK parameter of ASP3652 in cerebrospinal fluid (CSF) measured by area under the plasma concentration-time curve in the dosing interval (AUCtau)
大体时间：Days 10 -11
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Days 10 -11
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PK parameter of ASP3652 in cerebrospinal fluid (CSF) measured by maximum observed plasma concentration (Cmax)
大体时间：Days 10 -11
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Days 10 -11
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Additional PK of multiple doses of ASP3652 in plasma and cerebrospinal fluid (CSF)
大体时间：Plasma: Days 5, 7 and 9, and Days 10 - 12 / CSF: Days 10 -11
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plasma concentration immediately before the next dose (Ctrough), time to attain Cmax (tmax), apparent terminal elimination half-life (t½), volume of terminal phase distribution at steady state (Vz/F), apparent clearance after oral administration at steady state (CL/F) and peak trough ratio (PTR)
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Plasma: Days 5, 7 and 9, and Days 10 - 12 / CSF: Days 10 -11
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Pharmacodynamics (PD) of multiple doses of ASP3652 in plasma and CSF
大体时间：Plasma: Days 1-3 and Days 5-12 / CSF: Days 1-2 and Days 10-11
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response immediately prior to dosing (Rtrough), time of the maximum response (tmaxR), maximum response (Rmax), area under the response-time curve from 0 to 12h (AURC0-12h), percentage change in maximum response (Rmax%), percentage change in AURC from 0 to 12h (AUR0-12h%)
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Plasma: Days 1-3 and Days 5-12 / CSF: Days 1-2 and Days 10-11
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Safety and tolerability of multiple doses of ASP3652
大体时间：Screening (Day -22 to Day -2) to End-of-Study Visit (7 to 14 days after (early) discharge)
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Screening (Day -22 to Day -2) to End-of-Study Visit (7 to 14 days after (early) discharge)
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合作者和调查者
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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