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SchizophreniaPhase 1NCT00805454

Positron Emission Tomagraphy (PET) Study Following a Single Oral Dose of OPC-34712

A Phase 1 study testing OPC-34712 in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc..

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

Determine the degree of striatal D2 receptor occupancy induced by OPC-34712 at differenht dose levels in healthy volunteers. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Schizophrenia
What is being tested?
OPC-34712
Type of treatment
Pill or oral medicine
How many people
15 participants
Where
No sites listed yet
Study dates
Dec 2008to Jul 2009
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 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Males and non-child bearing potential females between 18 and 45 years of age, inclusive.
  • BMI between 19 and 32 kg/m2, inclusive.

Who cannot join

  • Condition or history which may present a safety concern to the subject or interfere with outcome variables.
  • History of or current drug or alcohol abuse, hepatitis, AIDS, or drug allergy.
  • Use of prescription, over-the-counter, or herbal medication, or vitamin supplements within 14 days or antibiotics within 30 days.
  • Use of tobacco products or daily exposue to second hand smoke.
  • Blood pressure higher than 140/90 mmHg or lower than 100/50 mmHg: heart rate outside 40 to 90 beats/minute.
  • History of serious mental disorder.

About this study

Official title: A Phase I, Open-Label,Positron Emission Tomography (PET) Study Healthy Subjects Following a Single Oral Dose of OPC-34712

Determine the degree of striatal D2 receptor occupancy induced by OPC-34712 at differenht dose levels in healthy volunteers.

Read the detailed description

Subjects will receive a dose of study medication and will undergo a PET scan at 4 hrs and 23.5 hours post dose. Subjects will remain in the clinic from Day-1 to Day 7 for PK sample collection and safety monitoring. Subjects will return to the clinic on Day 10 for a follow-up safety assessment.

Conditions
Schizophrenia
Being tested
OPC-34712
Keywords
Healthy Volunteers, Phase I, Pet Scan
Medical subject headings
Schizophrenia

What participants receive

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

  • OPC-34712Drug

    Single oral dose, 0.5 to 25 mg

What is being measured

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

  1. Pharmacodynamic: Percent occupancy of D2 receptor, as judged by PET scan.

    Measured: 10 days

Secondary outcomes (1)
  1. Measure safety: adverse events, vital signs, ECGs, and clinical laboratory tests

    Measured: 30 days

Timeline

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

  1. First posted9 Dec 2008 (estimated)
  2. Study startDec 2008
  3. Primary completionJul 2009
  4. Study completionJul 2009

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
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00805454
Sponsor's protocol ID
331-07-202
Status last verified
May 2010
First submitted
4 Dec 2008
Last updated
7 May 2010
Results posted
No
Data monitoring committee
Yes

Publications

  • Wong DF, Raoufinia A, Bricmont P, Brasic JR, McQuade RD, Forbes RA, Kikuchi T, Kuwabara H. An open-label, positron emission tomography study of the striatal D2/D3 receptor occupancy and pharmacokinetics of single-dose oral brexpiprazole in healthy participants. Eur J Clin Pharmacol. 2021 May;77(5):717-725. doi: 10.1007/s00228-020-03021-9. Epub 2020 Nov 16.

    PubMed 33196868

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing OPC-34712 in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc..

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 7 May 2010. Status can change between updates, so confirm with the study contact before making plans.

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?

Pharmacodynamic: Percent occupancy of D2 receptor, as judged by PET scan. (time frame: 10 days). 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 NCT00805454, 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 7 May 2010.

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