A Study to Assess the Safety, Tolerability, and Effects in and on the Body of Healthy Young and Elderly Male and Female Subjects of Ascending Multiple Oral Doses of ASP3652

Study Overview
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Brief Summary
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The study investigates how safe ASP3652 is and how well it is tolerated when taken as multiple doses. The study also assesses how quickly and to what extent it is absorbed and eliminated from the body. In addition, the effects of age and gender are investigated. The study consists of two parts. In Part 1 four dose levels are administered to four separate groups initially. Two additional dosages are then investigated. Subjects receive either a once-daily dose (QD) or twice-daily dose (BID) of ASP3652 or placebo. Part 2 is performed in one group of elderly healthy male or female (post-menopausal) subjects. Subjects receive either a twice daily dose (BID) of ASP3652 or placebo. For both parts of the study, the subjects stay in the clinic for one period of 18 days.

Detailed Description
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This is a Multiple Ascending Dose (MAD) study with two parts. Screening for both parts takes place between Days -28 and -3. Subjects are admitted to the clinic on Day -2, and discharged on Day 16. They return for an End of Study Visit (ESV) between 7 and 14 days after (early) discharge. Part 1 evaluates the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of ASP3652 following ascending multiple oral doses. The initially planned four dose levels or matching placebo are given to four separate groups. Thereafter two additional dosage levels are further investigated. All groups receive a single dose of ASP3652 administered in the morning of Day 1 and Day 14, and twice-daily doses administered from Day 2 to Day 13 under fasted conditions, except the last group which receives all dosages once daily from Day 1 to Day 14. Part 2 evaluates the safety, tolerability, PK and PD of ASP3652 following ascending multiple oral doses in healthy elderly male and female subjects. This part contains a single, placebo-controlled group. All subjects receive twice daily doses and administration is based on the results of Part 1. All subjects in both parts receive training for Neurocognitive Test Battery (NTB) and tests for monitoring of psychotropic effects.

Official Title
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A Double-blind, Randomized, Placebo-controlled Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Ascending Multiple Oral Doses of ASP3652 in Healthy Young and Elderly Male and Female Subjects

Conditions
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Healthy Subjects, Pharmacokinetics of ASP3652, Pharmacodynamics of ASP3652

Intervention / Treatment
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* Drug: ASP3652
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Body Mass Index (BMI) between 18.5-30.0 kg/m2 for both male and female subjects. Male subject is non-fertile, i.e. surgically sterilized or practices an adequate contraceptive method to prevent pregnancies. Female subject is of non-child bearing potential, i.e. post menopausal, surgically sterilized, hysterectomy in medical history, or practices adequate (double barrier) non-hormonal contraceptive method to prevent pregnancies. Exclusion Criteria: Pregnant or breast feeding within 6 months before screening assessment. Presence or history of any clinically significant psychiatric disorder such as mania, depression or schizophrenia. Regular use of any inducer of liver metabolism (e.g. barbiturates, rifampin) in the 3 months prior to admission to the Clinical Unit.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: 1: Placebo dose level<br> | Drug: Placebo<br>* oral<br>|
| Experimental: 2: ASP3652 lowest dose level twice daily<br> | Drug: ASP3652<br>* oral<br>|
| Experimental: 3:ASP3652 low dose level twice daily<br> | Drug: ASP3652<br>* oral<br>|
| Experimental: 4: ASP3652 medium dose level twice daily<br> | Drug: ASP3652<br>* oral<br>|
| Experimental: 5: ASP3652 high dose level twice daily<br> | Drug: ASP3652<br>* oral<br>|
| Experimental: 6: ASP3652 highest dose level once daily<br> | Drug: ASP3652<br>* oral<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Nature, frequency and severity of adverse events |  | Screening to 14 days after discharge | 
| Physical examination and vital signs |  | Screening to 14 days after discharge | 
| Body temperature |  | Screening to 14 days after discharge | 
| Routine safety laboratory tests |  | Screening to 14 days after discharge | 
| 12 -lead Electrocardiogram (ECG) |  | Screening to 14 days after discharge | 
| Holter ECG |  | Day -1 and Day14 | 
| Monitoring of psychotropic / cannabinoids-like effects |  | Screening to 14 days after discharge | 
| Neurocognition Test Battery (NTB) |  | Screening to 14 days after discharge | 
| Examination for skin lesions |  | Screening to 14 days after discharge | 
| Pharmacokinetic (PK) profile in plasma for first dose measured by area under the plasma concentration - time curve from time zero to infinity (AUCinf) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by area under the plasma concentration - time curve from time zero to time of last measurable concentration (AUClast) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by maximum plasma concentration (Cmax) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by time to attain Cmax (tmax) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by elimination half-life (t½) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by absorption lag time (tlag) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by apparent volume of distribution during the terminal phase (Vz/F) |  | Day 1 to Day 2 | 
| PK profile in plasma for first dose measured by apparent total clearance of the drug from plasma after oral administration (CL/F) |  | Day 1 to Day 2 | 
| PK profile in urine for first dose measured by cumulative amount of unchanged drug excreted into the urine from time zero to time of last measurable concentration (Aelast) |  | Day 1 to Day 2 | 
| PK profile in urine for first dose measured by cumulative amount of unchanged drug excreted into the urine from time zero to infinity after single dose (Aeinf) |  | Day 1 to Day 2 | 
| PK profile in urine for first dose measured by percentage of unchanged drug excreted into the urine from time zero to time of last measurable concentration (Aelast%) |  | Day 1 to Day 2 | 
| PK profile in urine for first dose measured by percentage of unchanged drug excreted into the urine from time zero to infinity after single dose (Aeinf%) |  | Day 1 to Day 2 | 
| PK profile in urine for first dose measured by renal clearance of the drug from plasma (CLR) |  | Day 1 to Day 2 | 
| PK profile in plasma for last dose measured by area under the plasma concentration - time curve between consecutive dosing (AUCtau) | Only for Bis in die (twice daily) (BID) dosing | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by area under the plasma concentration- time curve from the time of dosing up to 24 hours (AUC0-24) | Only for BID dosing | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by tmax |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by Cmax |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by t½ |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by Vz/F |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by CL/F |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by accumulation ratio (Rac) |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by Peak Trough Ratio (PTR) |  | Day 14 to Day 16 | 
| PK profile in plasma for last dose measured by plasma concentration at the end of a dosing interval at steady state (Ctrough) |  | Day 14 to Day 16 | 
| PK profile in urine for last dose measured by cumulative amount of drug excreted into urine over the time interval between consecutive dosing (Aetau) | Only for BID dosing | Day 14 to Day 16 | 
| PK profile in urine for last dose measured by fraction of the drug excreted into urine (Aetau) over the time interval between consecutive dosing (Aetau%) | Only for BID dosing | Day 14 to Day 16 | 
| PK profile in urine for last dose measured by CLR | Only for BID dosing | Day 14 to Day 16 | 
| PK profile in urine for last dose measured by cumulative amount of unchanged drug excreted into the urine from 0 to 24 hours (Ae0-24) | Only for BID dosing | Day 14 to Day 16 | 
| PK profile in urine for last dose measured by percentage of unchanged drug excreted into the urine from 0 to 24 hours (Ae0-24%) |  | Day 14 to Day 16 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Assessment of Pharmacodynamics measured by Ex vivo enzyme activity in mononuclear cells |  | Day -1 to Day 16 | 
| Pharmacodynamics measured by levels of arachidonoyl-ethanolamide (AEA) in plasma and seminal fluid (exploratory) |  | Day -2 or -1 and day 11, 12 or 13 | 
| Pharmacodynamics measured by levels of oleoyl-ethanolamide (OEA) in plasma and seminal fluid (exploratory) |  | Day -2 or -1 and day 11, 12 or 13 | 
| Pharmacodynamics measured by levels of palmitoyl-ethanolamide (PEA) in plasma and seminal fluid (exploratory) |  | Day -2 or -1 and day 11, 12 or 13 | 
| Assessment of Pharmacodynamics measured by intraocular pressure (IOP) (exploratory) |  | Day -1 to Day 15 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ASP3652, Age, Gender, Pharmacokinetics, Pharmacodynamics, Phase 1, Multiple Ascending Doses (MAD)