Depressive DisorderPhase 1NCT01424449
A PET Study in Healthy Volunteers
A Phase 1 study testing [11C]PHNO and Aripiprazole in people with Depressive Disorder, run by GlaxoSmithKline at 1 site in United Kingdom.
Trial summary
This will be an open label, non-randomised [11C]PHNO PET study using healthy male volunteers. Each volunteer will undergo 4 [11C]PHNO PET scans to allow for further characterisation of this radioligand and examine the effects of [11C]PHNO mass carry-over and displaceable binding in the brain. Read more about this study
- Who is it for?
- Ages 22 to 55 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Depressive Disorder
- What is being tested?
- [11C]PHNO and Aripiprazole
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 7 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Jan 2010to Jul 2010
- 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 22 to 55 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy as determined by a responsible physician
- Male subjects between 25 and 55 years of age.
- Male subjects must agree to use one of the contraception methods listed
- Capable of giving written informed consent
Who cannot join
- The subject has a positive pre-study drug/alcohol screen
- The subjects is using or has used regular prescription or non-prescription drugs
- Current or recent (within one year) gastrointestinal disease
- A screening ECG with a QTc value of >450msec and/or a PR interval outside the range 120 to 200msec or an ECG that is not suitable for QT measurements
- Pulse rate <50 or >100 bpm OR a systolic blood pressure >140 or <100 OR a diastolic blood pressure >90 or <60.
- History of long QT syndrome (personal or family) or other cardiac conduction disorder, or other clinically significant cardiac disease.
Show all 19Show fewer
- Any previous or current psychiatric diagnosis listed in DSM-IV Axis I or II
- Any history of suicidal attempts, suicidal ideation or behaviour as assessed by appropriately trained study personnel.
- History of alcohol dependence
- The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer).
- Exposure to more than four new chemical entities within 12 months prior to the first dosing day.
- History of sensitivity to any of the study medications, or components thereof or a history of drug or other allergy that, in the opinion of the investigator or GSK Medical Monitor, contraindicates their participation.
- Where participation in the study would result in donation of blood or blood products in excess of 550 mL within a 56 day period.
- Previous inclusion in a research and/or medical protocol involving nuclear medicine, PET or radiological investigations with significant radiation burden
- Family history of cancer
- History of claustrophobia or subjects feeling that he will be unable to lie still on his back in the PET camera for a period of ~2 hours at a time.
- History or presence of a neurological diagnosis
- Presence of a cardiac pacemaker or other electronic device or ferromagnetic metal foreign bodies as assessed by a standard pre-MRI questionnaire.
- Unwillingness or inability to follow the procedures outlined in the protocol. -
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Positron Emission Tomography Study in Healthy Male Subjects to Examine the Test-retest Reliability of the D2/3 Agonist Radiotracer [11C]PHNO
This will be an open label, non-randomised [11C]PHNO PET study using healthy male volunteers. Each volunteer will undergo 4 [11C]PHNO PET scans to allow for further characterisation of this radioligand and examine the effects of [11C]PHNO mass carry-over and displaceable binding in the brain. This study aims to obtain data from 6 evaluable subjects.
Read the detailed description
A test-retest (TRT) investigation of [11C]PHNO in human is required to further characterise [11C]PHNO. [11C] PHNO possesses very high affinity for the D3 receptor, and therefore most clinical studies are conducted at D3 occupancies >10%. As [11C]PHNO kinetics in the target brain regions are moderately slow, considerable mass carry over may be present on a 2nd PET scan conducted on the same day. In addition there appears to be a significant displaceable binding component in the cerebellum, which, if not accounted for, will lead to a bias in the quantification of specific [11C]PHNO binding. The aim of this study is therefore to examine the effects of [11C]PHNO mass carry-over and displaceable binding in the cerebellum, on the quantification of [11C]PHNO PET data.
This will be an open label, non-randomised [11C]PHNO PET study using healthy volunteers. Each volunteer will undergo 4 [11C]PHNO PET scans:
1st and 2nd scans; TRT on the same day with a minimal gap between [11C]PHNO injections to examine the effects of PHNO mass carry over, 3rd scan >1 week later to determine the "true" TRT variability and a 4th scan will follow a 15mg dose of aripiprazole (a D2/D3 compound which allows the highest clinically acceptable blockade of central D2/D3 receptors) and will examine the amount of displaceable binding in the cerebellum, a proposed reference tissue for [11C]PHNO.
The scan data will be quantified as regional volumes of distribution (VT).
- Conditions
- Depressive Disorder
- Being tested
- [11C]PHNO, Aripiprazole
- Medical subject headings
- Depressive Disorder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
[11C]PHNORadiation
examine the effects of [11C]PHNO mass carry-over and displaceable binding
AripiprazoleDrug
A 4th scan will follow a 15mg dose of aripiprazole (a D2/D3 compound which allows the highest clinically acceptable blockade of central D2/D3 receptors)
| Study group | Role | What they receive |
|---|---|---|
| no treatment | Experimental | Aripiprazole is a D2/D3 antagonist registered in the UK for use in the treatment of schizophrenia. It allows the highest clinically acceptable blockade of central D2/D3 receptors and will allow us to examine the amount of displaceable binding in the brain - a proposed reference tissue for [11C]PHNO. Receives: Radiation: [11C]PHNO; Drug: Aripiprazole |
What is being measured
The primary outcome is the main question the study is designed to answer.
volume of distribution
Regional volume of distribution (VT) in sub-cortical, brainstem and cerebellar regions of interest at each PET scan.
Measured: one year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Aug 2011 (estimated)
- Study startJan 2010
- Primary completionJul 2010
- Study completionJul 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Depressive DisorderStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 7 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01424449
- Sponsor's protocol ID
- 113549
- Status last verified
- Mar 2012
- First submitted
- 18 Aug 2011
- Last updated
- 17 Dec 2012
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Dec 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Positron Emission Tomography Study in Healthy Male Subjects to Examine the Test-retest Reliability of the D2/3 Agonist Radiotracer [11C]PHNO
- ClinicalTrials.gov ID
- NCT01424449
- Acronym / sponsor ID
- 113549
- Conditions
- Depressive Disorder
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 7 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- Jan 2010
- Primary completion
- Jul 2010 (actual)
- Study completion
- Jul 2010 (actual)
- First posted
- 29 Aug 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This will be an open label, non-randomised [11C]PHNO PET study using healthy male volunteers. Each volunteer will undergo 4 [11C]PHNO PET scans to allow for further characterisation of this radioligand and examine the effects of [11C]PHNO mass carry-over and displaceable binding in the brain. This study aims to obtain data from 6 evaluable subjects.
Detailed description
A test-retest (TRT) investigation of [11C]PHNO in human is required to further characterise [11C]PHNO. [11C] PHNO possesses very high affinity for the D3 receptor, and therefore most clinical studies are conducted at D3 occupancies >10%. As [11C]PHNO kinetics in the target brain regions are moderately slow, considerable mass carry over may be present on a 2nd PET scan conducted on the same day. In addition there appears to be a significant displaceable binding component in the cerebellum, which, if not accounted for, will lead to a bias in the quantification of specific [11C]PHNO binding. The aim of this study is therefore to examine the effects of [11C]PHNO mass carry-over and displaceable binding in the cerebellum, on the quantification of [11C]PHNO PET data.
This will be an open label, non-randomised [11C]PHNO PET study using healthy volunteers. Each volunteer will undergo 4 [11C]PHNO PET scans:
1st and 2nd scans; TRT on the same day with a minimal gap between [11C]PHNO injections to examine the effects of PHNO mass carry over, 3rd scan >1 week later to determine the "true" TRT variability and a 4th scan will follow a 15mg dose of aripiprazole (a D2/D3 compound which allows the highest clinically acceptable blockade of central D2/D3 receptors) and will examine the amount of displaceable binding in the cerebellum, a proposed reference tissue for [11C]PHNO.
The scan data will be quantified as regional volumes of distribution (VT).
Study design
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| no treatment | Experimental | Radiation: [11C]PHNO, Drug: AripiprazoleAripiprazole is a D2/D3 antagonist registered in the UK for use in the treatment of schizophrenia. It allows the highest clinically acceptable blockade of central D2/D3 receptors and will allow us to examine the amount of displaceable binding in the brain - a proposed reference tissue for [11C]PHNO. |
Who may qualify
- Ages
- 22 to 55 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Healthy as determined by a responsible physician
- Male subjects between 25 and 55 years of age.
- Male subjects must agree to use one of the contraception methods listed
- Capable of giving written informed consent
Key exclusion criteria (19 listed)
- The subject has a positive pre-study drug/alcohol screen
- The subjects is using or has used regular prescription or non-prescription drugs
- Current or recent (within one year) gastrointestinal disease
- A screening ECG with a QTc value of >450msec and/or a PR interval outside the range 120 to 200msec or an ECG that is not suitable for QT measurements
- Pulse rate <50 or >100 bpm OR a systolic blood pressure >140 or <100 OR a diastolic blood pressure >90 or <60.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| [11C]PHNOexamine the effects of [11C]PHNO mass carry-over and displaceable binding | Radiation | no treatment |
| AripiprazoleA 4th scan will follow a 15mg dose of aripiprazole (a D2/D3 compound which allows the highest clinically acceptable blockade of central D2/D3 receptors) | Drug | no treatment |
Primary outcome
volume of distribution
Time frame: one year
Regional volume of distribution (VT) in sub-cortical, brainstem and cerebellar regions of interest at each PET scan.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Dec 2012.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing [11C]PHNO and Aripiprazole in people with Depressive Disorder, run by GlaxoSmithKline 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 4 inclusion and 19 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 17 Dec 2012. 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?
volume of distribution (time frame: one year). 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 17 Dec 2012.