NCT06032026

Brief Summary

The current protocol is to determine the biodistribution, metabolism, excretion and brain uptake of 11C HY-2-15. The goal of this radiotracer is to quantify alpha-synuclein that is abnormally deposited in the brain of people with Multiple System Atrophy (MSA). The investigators will compare uptake in people with MSA with people with Parkinson disease (PD) and progressive supranuclear palsy (PSP) as well as healthy 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) (not a 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

77
On Track

Trial Health Score

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

Enrollment
70

participants targeted

Target at P75+ for early_phase_1

Timeline
27mo left

Started Jul 2023

Longer than P75 for early_phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress56%
Jul 2023Jul 2028

Study Start

First participant enrolled

July 20, 2023

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

July 25, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

September 11, 2023

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2028

Last Updated

November 19, 2025

Status Verified

November 1, 2025

Enrollment Period

5 years

First QC Date

July 25, 2023

Last Update Submit

November 18, 2025

Conditions

Keywords

Alpha synucleinPositron Emission Tomography (PET)brain MRI

Outcome Measures

Primary Outcomes (2)

  • Organ biodistribution

    Determine biodistribution of the radioactive investigational drug, 11C HY-2-15

    4 weeks

  • PET uptake of tracer

    Determine whether there is selective uptake of 11C HY-2-15 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-HY-2-15 PET

EXPERIMENTAL

Participants will undergo 11C-HY-2-15 PET scan, they may also have a brain MRI and Amyloid PET scan as well as neurological assessments

Drug: 11C-HY-2-15 PETDiagnostic Test: brain MRIDiagnostic Test: Amyloid PET scanBehavioral: Neurological assessments

Interventions

2 hour Positron Emission Tomography (PET) scan using new radiotracer 11C-HY-2-15

11C-HY-2-15 PET
brain MRIDIAGNOSTIC_TEST

brain MRI scan

11C-HY-2-15 PET
Amyloid PET scanDIAGNOSTIC_TEST

PET scan with Florbetaben F18 or 11C-PiB

11C-HY-2-15 PET

Neurological assessments, including video interview

11C-HY-2-15 PET

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The entire cohort will include men and women clinically diagnosed with MSA, PD, PSP or are healthy controls. A sub-set of these participants who undergo whole body scanning that will be used for analysis of biodistribution and dosimetry calculations.
  • Patients in all cohorts will be male or female adults from 40 to 80 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
  • We 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 HY-2-15, 11C-PiB or 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
  • PSP and MSA subjects will be excluded if they have a history of any prior positive ß-amyloid PET scan or positive CSF AD biomarkers.
  • 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 (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

RECRUITING

MeSH Terms

Conditions

TauopathiesParkinson Disease 4, Autosomal Dominant Lewy Body

Condition Hierarchy (Ancestors)

Neurodegenerative DiseasesNervous System Diseases

Study Officials

  • Ilya Nasrallah, MD

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

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

July 25, 2023

First Posted

September 11, 2023

Study Start

July 20, 2023

Primary Completion (Estimated)

July 31, 2028

Study Completion (Estimated)

July 31, 2028

Last Updated

November 19, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share

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, we 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.

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.

Locations