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Evaluation of [18F]MK-9470 as a Brain Tracer of Cannabinoid-1 Receptor in Parkinson's Disease and Healthy Subjects

Evaluation of [18F] MK-9470 and PET as a Marker of Cannabinoid-1 Receptor Activity in Subjects With Parkinson Disease Compared With Healthy Controls

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01462708
Acronym
MK9470
Enrollment
16
Registered
2011-10-31
Start date
2011-05-31
Completion date
2013-05-31
Last updated
2013-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson Disease

Keywords

Parkinson Disease, Molecular NeuroImaging

Brief summary

The purpose of this study is to assess MK-9470 Positron Emission Tomography (PET) imaging as a tool to evaluate the activity of the CB-1 receptor in the brain.

Detailed description

The underlying goal of this study is to assess MK-9470 PET imaging as a tool to evaluate the activity of the CB-1 receptor in the brain of Parkinson's Disease (PD) research participants.

Interventions

DRUG[18F]MK-9470

Subjects will be injected with 10 mCi, and not to exceed 11 mCi (not \>10% of 10 mCi limit)of \[18F\]MK-9470, followed by PET imaging.

Sponsors

Institute for Neurodegenerative Disorders
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
Yes

Inclusion criteria

Early PD Subjects Inclusion criteria: * The participant is 30 years or older. * Written informed consent is obtained. * Participants have a diagnosis of PD (based on UK Brain Bank Criteria) within the past 2 years. * Modified Hoehn and Yahr stages 1-2. * No evidence of dyskinesia by history or clinical examination * For females, non-child bearing potential or a negative urine or blood pregnancy test on day of \[18F\]-MK-9470 injection. Advanced PD subjects Inclusion criteria: * The participant is 30 years or older. * Written informed consent is obtained. * Participants have a diagnosis of PD (based on UK Brain Bank Criteria) of at least 5 years duration. * Modified Hoehn and Yahr stages 1-4. * No evidence of dyskinesia by history or clinical examination * For females, non-child bearing potential or a negative urine or blood pregnancy test on day of \[18F\]-MK-9470 injection. Subjects who have a clinical diagnosis of advanced PD with dyskinesia will be recruited for this study. ePD subjects Inclusion criteria: * The participant is 30 years or older. * Written informed consent is obtained. * Participants have a diagnosis of PD (based on UK Brain Bank Criteria) of at least 5 years. * Modified Hoehn and Yahr stages 1-4. * Evidence of dyskinesia either by history or clinical examination * For females, non-child bearing potential or a negative urine or blood pregnancy test on day of \[18F\]-MK-9470 injection. PD (all stages- e-PD, aPD, aPD-dys)Subject Selection. Subjects who have a clinical diagnosis of ePD, aPD, aPD-dys will be recruited for this study. All PD subjects

Exclusion criteria

* The subject has a clinically significant abnormal laboratory value and/or clinically significant unstable medical or psychiatric illness * The subject has any disorder that may interfere with drug absorption, distribution, metabolism, or excretion. * The patient has evidence of unstable gastrointestinal, cardiovascular, hepatic, renal, hematological, neoplastic, endocrine, neurological, pulmonary, or other disorder or disease. * Evidence of a stroke or mass lesion in a clinically relevant area that may interfere with the imaging outcome measure * Subjects with radiation exposure above acceptable levels * Pregnancy Healthy Control Subject Selection: subjects who have no neurological disease will be recruited for this study. Healthy control subjects Inclusion criteria: * The participant is 18 years or older. * Written informed consent is obtained. * Negative history of neurological or psychiatric illness based on evaluation by a research physician. * For females, non-child bearing potential a negative urine or blood pregnancy test on day of \[18F\]-MK9470 injection.

Design outcomes

Primary

MeasureTime frameDescription
Dynamic uptake and washout of [18F]MK-9470Approximately 2 yearsTo assess the dynamic uptake and washout of \[18F\]-MK-9470 in brain using positron emission tomography (PET) in early Parkinson disease and advanced Parkinson disease with and without dyskinesia and similarly aged healthy control subjects as a potential imaging biomarker of the cannabionoid-1 (CB-1) receptor in brain.

Secondary

MeasureTime frameDescription
To acquire safety dataApproximately 2 yearsSafety will be assessed by the number of adverse events experienced by subjects and any clinically significant changes in laboratory tests or vital signs.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026