Study of Biodistribution, Metabolism, Excretion and Brain Uptake11C-M503
Center Without Walls for Imaging Proteinopathies With PET (CW2IP2): Phase I Pilot Study of Biodistribution, Metabolism, Excretion and Brain Uptake of 11C-M503
1 other identifier
interventional
70
1 country
3
Brief Summary
The current protocol is to determine the biodistribution, metabolism, excretion and brain uptake of 11C-M503. The goal of this radiotracer is to quantify alpha-synuclein that is abnormally deposited in the brain of people with Parkinson's disease (PD). Investigators will compare uptake in participants with PD versus participants with multiple system atrophy (MSA) and progressive supranuclear palsy (PSP), as well as non-Parkinsonism volunteers. This multicenter project funded by an NIH U19 grant, is centered at U Pennsylvania (Penn, Grant PI: Robert Mach) in collaboration with U Pittsburgh (Pitt) (non-clinical site) Yale U, U of California at San Francisco (UCSF) and Washington University in St. Louis (WU). The University of Pennsylvania will act as the sIRB for this multi-center human subjects project and participants will be recruited from all sites.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for early_phase_1
Started Feb 2024
Longer than P75 for early_phase_1
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 16, 2024
CompletedFirst Submitted
Initial submission to the registry
March 4, 2024
CompletedFirst Posted
Study publicly available on registry
March 12, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2029
April 24, 2026
April 1, 2026
5 years
March 4, 2024
April 23, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Organ Biodistribution or Dosimetry
Determine biodistribution of the radioactive investigational drug, 11C-M503 and calculate human dosimetry. A second IV or an arterial line may be placed in the arm contralateral to the side of injection for blood metabolite analysis and/or radioactive counts at various times during the scanning session. Biodistribution, metabolism, excretion and pilot brain uptake data will be collected and human dosimetry will be calculated.
4 weeks
PET Uptake of Tracer
Determine whether there is selective uptake of 11C-M503 in people with MSA compared to healthy volunteers, PD and PSP participants.
4 weeks
Secondary Outcomes (1)
Adverse Events
4 weeks
Study Arms (1)
11C-M503 PET
EXPERIMENTALParticipants will undergo 11C-M503 PET scan, they may also have a brain MRI and Amyloid PET scan as well as neurological assessments.
Interventions
2 hour Positron Emission Tomography (PET) scan using new radiotracer 11C-M503
Neurological assessments, including a video interview.
Eligibility Criteria
You may qualify if:
- Patients in all cohorts will be male or female adults from 40 to 85 years of age.
- Participants must be informed of the investigational nature of this study and be willing to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures or Participants who are deemed unable to provide informed consent must have a designated study partner present for consent and to accompany them to study visits
- Investigators will ask PD/MSA/PSP participants to agree to brain donation but this choice is not mandatory for participation in this study.
You may not qualify if:
- Females who are pregnant or breast feeding will be excluded, a urine pregnancy test will be performed in women of child-bearing potential prior to injection of 11C -M503, 11C-PiB or 18F-Florbetaben
- Forms of parkinsonism other than PD, PSP and MSA as defined above
- Major psychiatric disorder (e.g. schizophrenia or bipolar disorder) - major depressive disorder is allowed
- History of significant or ongoing alcohol abuse or substance abuse or dependence based on medical record review or self-reported
- Contraindications or inability to tolerate imaging, arterial line or IV placement or blood draw procedures in the opinion of an investigator or treating physician
- Contraindication to MRI, such as non-compatible implanted medical device
- Any current medical condition, illness, or disorder as assessed by medical record review and/or self-reported that is considered by a physician or investigator to be a condition that could compromise participant safety or successful participation in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Yale New Haven Hospital
New Haven, Connecticut, 06510, United States
Washington University in St. Louis
St Louis, Missouri, 63110, United States
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ilya M Nasrallah, MD, PhD
University of Pennsylvania
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- early phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 4, 2024
First Posted
March 12, 2024
Study Start
February 16, 2024
Primary Completion (Estimated)
February 1, 2029
Study Completion (Estimated)
February 1, 2029
Last Updated
April 24, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- Time Frame
- Data shared as participants are enrolled and then final clinical report after study is completed.
- Access Criteria
- Dosimetry data. Dosimetry data for all compounds advanced to first-in-human trials will be provided on the website link for the Clinical Core. Since it is the intent of this U19 Center to provide information to the PET community on probes that have been validated in clinical research studies, these data will be provided once the CCOC has confirmed that a probe has met the validation criteria. This will include the results of dosimetry studies (organ, whole body, and EDE data) and, as requested, the organ radioactivity uptake, clearance curves and the dosimetry images in DICOM format. Imaging and Clinical Data. Links from the CCOC website will connect to XNAT and MARS to provide all de-identified clinical data, imaging data and related files including arterial blood sampling measurements. These data will be distributed upon request, as noted in the above policies for Data Sharing.
Early safety assessments including whole body dosimetry studies at Penn; coordinate patient selection criteria, centrally collect and serve all imaging and demographic data, coordinate tracer kinetic methods development and validation for human imaging, and coordinate all data to efficiently enable GO-NOGO decisions for candidate radiotracers. As a final check on diagnosis and specificity of candidate radiotracers, Investigators will request all patient participants to permit postmortem brain donation for autoradiography of relevant radiotracers on fresh frozen brain tissues. Additionally, this Core will interact with multiple ongoing studies with cohorts studying PD, MSA, PSP and FTD. Finally, a robust data sharing plan facilitates collaboration and use of support documents and imaging data.