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Pharmacokinetics of ASP3652Phase 1NCT02034734

A Study to Investigate the Appearance and Disappearance of ASP3652 in Blood and Spinal Fluid in Healthy Male Subjects

A Phase 1 study testing ASP3652 in people with Pharmacokinetics of ASP3652 and Pharmacodynamics of ASP3652, run by Astellas Pharma Europe B.V. at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the plasma and cerebrospinal fluid (CSF) pharmacokinetics (PK) of multiple doses of ASP3652 in healthy young Caucasian male subjects. Also to evaluate the plasma and CSF pharmacodynamics (PD) of multiple doses of ASP3652 in healthy young Caucasian male subjects and to assess… Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
What is being tested?
ASP3652
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteUnited Kingdom
Study dates
Sep 2012to Dec 2012
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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.

Who cannot join

  • 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).

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • PAREXEL Early Phase Clinical Unit

    Harrow, HA1 3UJ

Other trials in United Kingdom

About this study

Official title: 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

The purpose of this study is to evaluate the plasma and cerebrospinal fluid (CSF) pharmacokinetics (PK) of multiple doses of ASP3652 in healthy young Caucasian male subjects. Also to evaluate the plasma and CSF pharmacodynamics (PD) of multiple doses of ASP3652 in healthy young Caucasian male subjects and to assess the safety and tolerability of multiple doses of ASP3652 in healthy young Caucasian male subjects.

Read the detailed description

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.

Being tested
ASP3652
Keywords
Phase 1, ASP3652, Cerebrospinal fluid (CSF), Multiple doses

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ASP3652Drug

    oral

Study groups in NCT02034734
Study groupRoleWhat they receive
1: ASP3652ExperimentalMultiple doses of ASP3652
Receives: Drug: ASP3652

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pharmacokinetics (PK) of ASP3652 in plasma measured by area under the plasma concentration-time curve in the dosing interval (AUCtau)

    Measured: Days 5, 7 and 9, and Days 10 - 12

  2. PK of ASP3652 in plasma measured by maximum observed plasma concentration (Cmax)

    Measured: Days 5, 7 and 9, and Days 10 - 12

  3. PK parameter of ASP3652 in cerebrospinal fluid (CSF) measured by area under the plasma concentration-time curve in the dosing interval (AUCtau)

    Measured: Days 10 -11

  4. PK parameter of ASP3652 in cerebrospinal fluid (CSF) measured by maximum observed plasma concentration (Cmax)

    Measured: Days 10 -11

Secondary outcomes (3)
  1. Additional PK of multiple doses of ASP3652 in plasma and cerebrospinal fluid (CSF)

    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)

    Measured: Plasma: Days 5, 7 and 9, and Days 10 - 12 / CSF: Days 10 -11

  2. Pharmacodynamics (PD) of multiple doses of ASP3652 in plasma and CSF

    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%)

    Measured: Plasma: Days 1-3 and Days 5-12 / CSF: Days 1-2 and Days 10-11

  3. Safety and tolerability of multiple doses of ASP3652

    Measured: Screening (Day -22 to Day -2) to End-of-Study Visit (7 to 14 days after (early) discharge)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jan 2014 (estimated)
  2. Study startSep 2012
  3. Primary completionDec 2012
  4. Study completionDec 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02034734
Sponsor's protocol ID
3652-CL-0048
Other IDs
2011-004226-97
Status last verified
Jan 2014
First submitted
10 Jan 2014
Last updated
13 Jan 2014
Results posted
No
Data monitoring committee
No

Publications

  • Takizawa M, Cerneus D, Michon I, Rijnders S, Meijer J, Someya A, Sato Y. Investigation of Safety and Tolerability of ASP3652 Based on Clinical Studies of Cerebrospinal Fluid Transfer After Multiple Doses and Exposure After Single Doses at High Dose Levels. Adv Ther. 2020 Sep;37(9):3967-3984. doi: 10.1007/s12325-020-01451-6. Epub 2020 Jul 26.

    PubMed 32715381

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ASP3652 in people with Pharmacokinetics of ASP3652 and Pharmacodynamics of ASP3652, run by Astellas Pharma Europe B.V. at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pharmacokinetics (PK) of ASP3652 in plasma measured by area under the plasma concentration-time curve in the dosing interval (AUCtau) (time frame: Days 5, 7 and 9, and Days 10 - 12). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02034734, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jan 2014.

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