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Healthy VolunteersPhase 1NCT02584569

Phase 1 TAK-915 Single-Dose Positron Emission Tomography (PET) Occupancy Study

A Phase 1 study testing TAK-915 in people with Healthy Volunteers, run by Takeda at 1 site in United States.

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

This phase 1 study will be conducted to examine the degree and duration of brain PDE2A enzyme occupancy /target engagement as a function of TAK-915 plasma concentration in order to guide dosing and schedule for future clinical studies in schizophrenia with TAK-915. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
TAK-915
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
Nov 2015to Apr 2016
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
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Is a healthy male, or female of non-childbearing potential, aged between 18 and 55 years, inclusive.
  • Weighs at least 45 kg and has a body mass index (BMI) between 18.0 and 30.0 kg/m^2.

Who cannot join

  • Has a known history or evidence of a clinically significant disorder (including neurologic and psychiatric) or disease that in the opinion of the study investigator would pose a risk to the participant's safety or interfere with the study evaluation, procedures, or completion.
  • Contraindication to magnetic resonance imaging (MRI) based on the standard MRI screening questionnaire.
  • Have had exposure to any radiation >15 millisievert (mSv)/year (eg, occupational or radiation therapy) within the previous year prior to Baseline imaging.
  • Has a known hypersensitivity to any component of the formulation of TAK-915 or related compounds, or to [18F]MNI-794 or to any of its components.
  • Clinically significant abnormal findings on brain MRI scan or findings on brain MRI that may interfere with the interpretation of the positron emission tomography (PET) imaging.
  • Use of any herbal or prescription medications within 30 days prior to Baseline Imaging Check-in; use of any over-the-counter medications or vitamin supplements within 7 days prior to Baseline Imaging Check-in.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Study site

    New Haven, Connecticut

Other trials in United States

About this study

Official title: A Phase 1, Open-Label, Positron Emission Tomography Study With [18F]MNI-794 to Determine Phosphodiesterase 2A Brain Enzyme Occupancy of TAK-915 After Single-Dose Oral Administration in Healthy Subjects

This phase 1 study will be conducted to examine the degree and duration of brain PDE2A enzyme occupancy /target engagement as a function of TAK-915 plasma concentration in order to guide dosing and schedule for future clinical studies in schizophrenia with TAK-915.

Read the detailed description

The drug being tested in this study is called TAK-915. TAK-915 is being tested to examine the degree and duration of brain phosphodiesterase 2A (PDE2A) enzyme occupancy/target engagement as a function of TAK-915 plasma concentration in order to guide dosing and schedule for future clinical studies in schizophrenia. This study will look at PDE2A brain enzyme occupancy in the putamen as a function of TAK-915 plasma concentration, as assessed using the positron emission tomography (PET) ligand [18F]MNI-794 after single dosing of TAK-915.

The study will enroll approximately 16 patients in total and within that total, allow up to 5 dose levels and up to 6 subjects per dose level. All participants will receive a single dose of TAK-915 on Day 1. The initial TAK-915 dose level to be studied is 100 mg. Subsequent dose levels may be lower or higher and will be determined through dose level review meetings (DLRMs) following approximately every 2 participants and based on prior occupancy, duration of occupancy, safety, tolerability, and available pharmacokinetic (PK) data.

This single center trial will be conducted in the United States. The overall time to participate in this study is up to 55 days. Participants will make multiple visits to the clinic, and will be contacted by telephone 22 days after last dose of study drug for a follow-up assessment.

Being tested
TAK-915
Keywords
Drug therapy

What participants receive

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

  • TAK-915Drug

    TAK-915 oral suspension

Study groups in NCT02584569
Study groupRoleWhat they receive
TAK-915ExperimentalTAK-915 100 mg suspension, orally, once on Day 1. Additional TAK-915 dose levels may be incorporated based on dose level review meetings (DLRMs) following approximately every 2 participants and based on prior occupancy, duration of occupancy, safety, tolerability, and available pharmacokinetic (PK) data.
Receives: Drug: TAK-915

What is being measured

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

  1. Phosphodiesterase 2A (PDE2A) Brain Enzyme Occupancy in the Putamen as a Function of TAK-915 Plasma Concentration for each subject

    Assessed for each subject using the PET ligand [18F]MNI-794 after single dosing of TAK-915, obtained from non-displaceable binding potential (BPnd).

    Measured: 2 PET scans occurring on Day 1 or 1 PET scan on Day 1 and 1 on Day 2.

Secondary outcomes (2)
  1. Plasma PK concentrations for each subject post tracer injection for each PET scan period following TAK-915 dosing

    Measured: t=0, t=45 min and t=90 min (after tracer injection) during each PET scan period.

  2. Dose and exposure of TAK-915 that correspond to PDE2A occupancy in the putamen of at least 45%.

    Measured: At multiple time points (up to 90 minutes after tracer injection) during each PET scan period.

Timeline

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

  1. First posted22 Oct 2015 (estimated)
  2. Study startNov 2015
  3. Primary completionApr 2016
  4. Study completionApr 2016

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02584569
Sponsor's protocol ID
TAK-915-1002
Other IDs
U1111-1168-0766
Status last verified
Jul 2016
First submitted
21 Oct 2015
Last updated
21 Jul 2016
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing TAK-915 in people with Healthy Volunteers, run by Takeda at 1 site in United States.

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 2 inclusion and 6 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 21 Jul 2016. 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 States. 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?

Phosphodiesterase 2A (PDE2A) Brain Enzyme Occupancy in the Putamen as a Function of TAK-915 Plasma Concentration for each subject (time frame: 2 PET scans occurring on Day 1 or 1 PET scan on Day 1 and 1 on Day 2.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 21 Jul 2016.

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