NCT00302393

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for phase_3 healthy

Timeline
Completed

Started Jun 2006

Typical duration for phase_3 healthy

Geographic Reach
1 country

1 active site

Status
completed

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

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 14, 2006

Completed
3 months until next milestone

Study Start

First participant enrolled

June 1, 2006

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2007

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2008

Completed
Last Updated

October 22, 2013

Status Verified

October 1, 2013

Enrollment Period

8 months

First QC Date

March 10, 2006

Last Update Submit

October 21, 2013

Conditions

Keywords

healthy volunteers

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 COMPARATOR

Immediate Release Methylphenidate administered before PET Scan

Drug: methylphenidate hydrochloride

Concerta

ACTIVE COMPARATOR

OROS Methylphenidate (Concerta) administered before PET Scan

Drug: OROS methylphenidate hydrochloride

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.

Concerta

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.

IR-MPH

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

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

Location

MeSH Terms

Interventions

Methylphenidate

Intervention Hierarchy (Ancestors)

PhenylacetatesAcids, CarbocyclicCarboxylic AcidsOrganic ChemicalsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Thomas Spencer, MD

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

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

Locations