Study Examining Repeat Dosing of OROS® Methylphenidate (CONCERTA®) and Immediate Release Methylphenidate in Healthy Adults
A PET Study Examining Pharmacokinetics and Dopamine Transporter Receptor Occupancy of Repeat Dosing of OROS® Methylphenidate (CONCERTA®) and Immediate Release Methylphenidate in Healthy Adults
1 other identifier
interventional
20
1 country
1
Brief Summary
There are two specific aims of this study. The first is to document the pharmacokinetics of dopamine transporter (DAT) receptor occupancy of repeated administration of orally administered, therapeutic doses of a short immediate release-methylphenidate hydrochloride (IR-MPH) and a long-acting formulation of MPH (OROS-MPH) using positron emission tomography (PET) scanning with C-11 altropane as the ligand. The investigators hypothesize that central nervous system (CNS) DAT occupancy of the OROS-MPH to IR-MPH sequence will be greater than that of IR-MPH to OROS-MPH sequence at 5 hours after the initial administration and that the CNS DAT occupancy of the other two formulations will be intermediate. The second aim of this study is to assess whether the abuse liability potential of delayed, repeated administrations of different formulations of MPH is moderated by the oral delivery system in which a delivery system with slower onset may be safer than one with more rapid early release.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3 healthy
Started Jun 2006
Typical duration for phase_3 healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 10, 2006
CompletedFirst Posted
Study publicly available on registry
March 14, 2006
CompletedStudy Start
First participant enrolled
June 1, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2007
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2008
CompletedOctober 22, 2013
October 1, 2013
8 months
March 10, 2006
October 21, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The DAT receptor occupancy of OROS MPH and MPH IR using PET scanning with C-11 altropane. Objective measures also provided by d and l ritalinic acid and methylphenidate levels at pre-dose, hour 4, 5 and 6.
The first visit will consist of a baseline PET scan during which no medication will be administered. For the next four study visits, subjects will be administered a first dose of one of the study treatments at hour 0 and then a second dose of one of the study treatments at hour 4. The study visits may be scheduled five to 30 days apart, but each subject must complete the five visits within a ten-week period.
Eligible subjects will be asked to return to the study center for five study visits.
Study Arms (2)
IR-MPH
ACTIVE COMPARATORImmediate Release Methylphenidate administered before PET Scan
Concerta
ACTIVE COMPARATOROROS Methylphenidate (Concerta) administered before PET Scan
Interventions
Subjects will be administered a first dose of one of the study treatments at hour 0 and then a second dose of one of the study treatments at hour 4 at each of the four treatment days in a crossover fashion, so that each subject will have received doses of each combination of treatments during the study. Each dose of OROS MPH will be 36 mg which will be supplied as one 36 mg capsules. Study treatments will be administered with water following an overnight fast of at least 8 hours.
Subjects will be administered a first dose of one of the study treatments at hour 0 and then a second dose of one of the study treatments at hour 4 at each of the four treatment days in a crossover fashion, so that each subject will have received doses of each combination of treatments during the study. Each dose of IR MPH will be 20 mg which will be supplied as one 20 mg capsule. Study treatments will be administered with water following an overnight fast of at least 8 hours.
Eligibility Criteria
You may qualify if:
- Signed written informed consent to participate in the study
- Age: 18 - 55
- If female, non-pregnant, non-nursing, using an adequate form of birth control or a negative plasma pregnancy test
- 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
- Right handed
You may not qualify if:
- Subjects with marked anxiety, tension, and agitation since the drug may aggravate these symptoms
- Subjects with known hypersensitivity to methylphenidate or other components of Concerta or Ritalin
- Subjects with glaucoma
- Subjects with motor tics or with a family history or diagnosis of Tourette's syndrome
- Subjects treated with monoamine oxidase inhibitors (MAOIs) or within 14 days of discontinuation of treatment with MAOIs
- 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) (Hamilton 1960)
- Beck Depression Inventory \> 19 (out of a possible 63 on the 21-item scale) (Beck et al 1961)
- Hamilton Anxiety Scale \> 21 (out of a possible 56 on the 14-item scale) (Hamilton 1959)
- Diagnosis of ADHD (attention deficit hyperactivity disorder)
- 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
- Mental impairment as evidenced by an intelligence quotient (I.Q.) \< 75
- Exposure to dopamine receptor antagonists within the previous three (3) months
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Thomas Spencer, MD
Massachusetts General Hospital
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Director, Pediatric Psychopharmacology Unit
Study Record Dates
First Submitted
March 10, 2006
First Posted
March 14, 2006
Study Start
June 1, 2006
Primary Completion
February 1, 2007
Study Completion
February 1, 2008
Last Updated
October 22, 2013
Record last verified: 2013-10