Healthy VolunteersPhase 4NCT00302367
An Open Label Phase I/II Study of Dopamine Transporter Receptor Occupancy With OROS and Immediate Release Methylphenidate as Measured With C-11 Altropane in Human Subjects
A Phase 4 study testing OROS methylphenidate hydrochloride and immediate release methylphenidate hydrochloride in people with Healthy Volunteers, run by Massachusetts General Hospital at 1 site in United States.
Trial summary
The specific aim of this study is to document the pharmacokinetics of DAT receptor occupancy of OROS and immediate release (IR) MPH using PET scanning with C-11 altropane as the ligand. 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?
- OROS methylphenidate hydrochloride and immediate release methylphenidate hydrochloride
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2004to Apr 2004
- Phase
- Phase 4
- 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
- Signed written informed consent to participate in the study.
- Age: 18 - 55
- If female, non-pregnant, non-nursing with a negative serum pregnancy test and using an adequate form of birth control.
- Supine and standing blood pressure within the range 110/60 to 150/90 mmHg.
- Heart rate, after resting for 5 minutes, within the range 46-90 beats/min.
- Subjects who are within 20% of the ideal weight for height as
- Right handed.
Who cannot join
- Diagnosis of any psychotic disorder, bipolar disorder, severe depression, severe anxiety, or Autism. Subjects with mild mood, oppositional, conduct, and anxiety disorders may be permitted to participate if considered appropriate by the investigator.
- Scores of Baseline Scales:
- Hamilton Depression Scale > 17 (out of a possible 67 on the 21-item scale)[18] Beck Depression Inventory > 19 (out of a possible 63 on the 21-item scale)[19] Hamilton Anxiety Scale > 21 (out of a possible 56 on the 14-item scale) [20]
- Tics or Tourette's Syndrome.
- History of head trauma with loss of consciousness, organic brain disorders, seizures, or neurosurgical intervention.
- Any clinically significant chronic medical condition, in the judgment of the investigator.
Show all 13Show fewer
- Mental impairment as evidenced by an I.Q. <75.
- Exposure to dopamine receptor antagonists within the previous three (3) months.
- Exposure to radiopharmaceuticals within four (4) weeks prior to PET scan.
- Subjects receiving psychotropic medication.
- Any clinically significant abnormality in the screening laboratory tests, vital signs, or 11-lead ECG, outside of normal limits.
- 12. Any woman of childbearing potential who is seeking to become pregnant or suspects that she may be pregnant.
- 13. Subjects with a known recent history (within the past six (6) months) of illicit drug or alcohol dependence
Trial locations and contacts
1 site in 1 country.
United States1 site
Massachusetts General Hospital
Cambridge, Massachusetts, 02138
About this study
The specific aim of this study is to document the pharmacokinetics of DAT receptor occupancy of OROS and immediate release (IR) MPH using PET scanning with C-11 altropane as the ligand. We hypothesize that the time to maximal receptor occupancy and the degree of receptor occupancy of immediate release (IR) MPH will be shorter and greater (respectively) than with an equipotent dose of OROS MPH.
Read the detailed description
This protocol seeks to document the pharmacokinetics of DAT receptor occupancy of OROS and immediate release (IR) MPH using PET and C-11 altropane. The main target of MPH in the brain is the dopamine transporter (DAT). We have an exquisitely sensitive methodology to measure DAT occupancy using C-11 Altropane and Positron Emission Tomography (PET). This research will provide novel and unique information toward a better understanding of the mechanism of action of long-acting stimulant formulations to enable new drug development and an estimation of the relative abuse potential of the current formulation.
- Conditions
- Healthy Volunteers
- Being tested
- OROS methylphenidate hydrochloride, immediate release methylphenidate hydrochloride
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OROS methylphenidate hydrochlorideDrug
immediate release methylphenidate hydrochlorideDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
The DAT receptor occupancy of OROS MPH and Metadate CD using PET scanning with C-11 Altropane. Objective measures also provided by d and l ritalinic acid and methylphenidate levels at pre-dose through hour 10.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Mar 2006 (estimated)
- Study startJan 2004
- Primary completionApr 2004
- Study completionApr 2004
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy VolunteersStudies of the same condition, open and under way.
- More trials run by Massachusetts General HospitalThe 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 4
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Enrolment
- 20 participants
Sponsor and investigators
- Lead sponsor
- Massachusetts General Hospital
- Sponsor type
- University, hospital or other
- Collaborators
- McNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.
- Investigators
- Thomas Spencer, MD, Principal investigator, Massachusetts General Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00302367
- Sponsor's protocol ID
- 2003-p-002058
- Status last verified
- Jul 2011
- First submitted
- 10 Mar 2006
- Last updated
- 12 Jul 2011
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Jul 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open Label Phase I/II Study of Dopamine Transporter Receptor Occupancy With OROS and Immediate Release Methylphenidate as Measured With C-11 Altropane in Human Subjects
- ClinicalTrials.gov ID
- NCT00302367
- Acronym / sponsor ID
- 2003-p-002058
- Conditions
- Healthy Volunteers
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants
- Lead sponsor
- Massachusetts General HospitalUniversity, hospital or other
- Collaborators
- McNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.
- Study start
- Jan 2004
- Primary completion
- Apr 2004 (actual)
- Study completion
- Apr 2004 (actual)
- First posted
- 14 Mar 2006 (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.
The specific aim of this study is to document the pharmacokinetics of DAT receptor occupancy of OROS and immediate release (IR) MPH using PET scanning with C-11 altropane as the ligand. We hypothesize that the time to maximal receptor occupancy and the degree of receptor occupancy of immediate release (IR) MPH will be shorter and greater (respectively) than with an equipotent dose of OROS MPH.
Detailed description
This protocol seeks to document the pharmacokinetics of DAT receptor occupancy of OROS and immediate release (IR) MPH using PET and C-11 altropane. The main target of MPH in the brain is the dopamine transporter (DAT). We have an exquisitely sensitive methodology to measure DAT occupancy using C-11 Altropane and Positron Emission Tomography (PET). This research will provide novel and unique information toward a better understanding of the mechanism of action of long-acting stimulant formulations to enable new drug development and an estimation of the relative abuse potential of the current formulation.
Study design
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (7 listed)
- Signed written informed consent to participate in the study.
- Age: 18 - 55
- If female, non-pregnant, non-nursing with a negative serum pregnancy test and using an adequate form of birth control.
- Supine and standing blood pressure within the range 110/60 to 150/90 mmHg.
- Heart rate, after resting for 5 minutes, within the range 46-90 beats/min.
Key exclusion criteria (13 listed)
- Diagnosis of any psychotic disorder, bipolar disorder, severe depression, severe anxiety, or Autism. Subjects with mild mood, oppositional, conduct, and anxiety disorders may be permitted to participate if considered appropriate by the investigator.
- Scores of Baseline Scales:
- Hamilton Depression Scale > 17 (out of a possible 67 on the 21-item scale)[18] Beck Depression Inventory > 19 (out of a possible 63 on the 21-item scale)[19] Hamilton Anxiety Scale > 21 (out of a possible 56 on the 14-item scale) [20]
- Tics or Tourette's Syndrome.
- History of head trauma with loss of consciousness, organic brain disorders, seizures, or neurosurgical intervention.
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 |
|---|---|---|
| OROS methylphenidate hydrochloride | Drug | – |
| immediate release methylphenidate hydrochloride | Drug | – |
Primary outcome
The DAT receptor occupancy of OROS MPH and Metadate CD using PET scanning with C-11 Altropane. Objective measures also provided by d and l ritalinic acid and methylphenidate levels at pre-dose through hour 10.
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 12 Jul 2011.
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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.
Thomas Spencer, MD principal investigator
Massachusetts General Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing OROS methylphenidate hydrochloride and immediate release methylphenidate hydrochloride in people with Healthy Volunteers, run by Massachusetts General Hospital 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 7 inclusion and 13 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 12 Jul 2011. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
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?
The DAT receptor occupancy of OROS MPH and Metadate CD using PET scanning with C-11 Altropane. Objective measures also provided by d and l ritalinic acid and methylphenidate levels at pre-dose through hour 10.. 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 12 Jul 2011.