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Showing 1–24 of 68 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: 11C-MCI Clear all
Recruiting Phase 1 Interventional Accepts healthy volunteers

PET Imaging of Cyclooxygenase in Participants With Major Depressive Disorder (MDD)

NCT04582916
View directory record Official record
Conditions
Depression
Interventions
11C-MCI, 11CPS13
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 70 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1 Interventional

A Pilot C11-Choline PET-CT Imaging Study in Patients With Locally Advanced Esophageal Cancer

NCT01051479
View directory record Official record
Conditions
Esophageal Cancer
Interventions
C11-Choline
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 1, 2018 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 2 Interventional Results available

11C-acetate/18Fluorodeoxyglucose-FDG PET/CT and Cardiac MRI in Pulmonary Hypertension

NCT01917136
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
11C-acetate, [18F]Fluoro-2-deoxy-2-D-glucose, Cardiac MRI
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 80 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Brain Imaging Study With Positron Emission Tomography and the Radiotracer [11C]UCB-J to Estimate How Fast Brivaracetam and Levetiracetam Enter the Brain in Healthy Volunteers

NCT02602860
View directory record Official record
Conditions
Healthy Volunteers
Interventions
[11C]UCB-J, Brivaracetam, Levetiracetam
Radiation · Drug
Lead sponsor
UCB Pharma
Industry
Eligibility
18 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 29, 2017 · Synced Sep 4, 2026, 6:54 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

SV2A Density Cannabis Use Disorder

NCT05472818
View directory record Official record
Conditions
Cannabis Use Disorder, Healthy
Interventions
[11C]APP311
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2032
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Neuroinflammation Imaging in AD

NCT04274998
View directory record Official record
Conditions
Alzheimer Disease, Healthy Volunteer
Interventions
[18F]NOS, [11C]PBR28
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
55 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Efavirenz and Ritonavir on Human Brain P-Glycoprotein

NCT01668147
View directory record Official record
Conditions
Drug Effects
Interventions
[11C] desmethyl-loperamide, Control - no pretreatment, Oral ritonavir, Oral efavirenz
Drug · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 40 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Results available

PET Imaging of Phosphodiesterase-4 (PDE4) in Brain and Peripheral Organs of McCune-Albright Syndrome

NCT02743377
View directory record Official record
Conditions
Nervous System Disease
Interventions
Brain PET Imaging with 11C Rolipram, Whole Body PET Baseline with 11C Rolipram, Whole Body PET Blocked with Roflumilast
Other · Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 4, 2026, 6:54 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Study of [11C]CPPC to Assess the Safety and Tolerability in Patients With ALS

NCT04749433
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
[11C]CPPC Injection
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Sep 4, 2026, 6:54 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

CS1P1 PET Studies of Neuroinflammation in Parkinson Disease

NCT06084533
View directory record Official record
Conditions
Parkinson Disease
Interventions
[11C]-CS1P1
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
50 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Translocator Protein and Inflammation After Traumatic Brain Injury

NCT01547780
View directory record Official record
Conditions
Traumatic Brain Injury (TBI), Healthy
Interventions
[11C]PBR28 and Positron Emission Tomography (PET)
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 70 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Positron Emission Tomography (PET) Trial to Evaluate Target Occupancy of CVL-354 at Kappa and Mu Opioid Receptors in Brain Following Oral Dosing

NCT05547542
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
CVL-354, [11C]-LY2795050, [11C]-carfentanil
Drug
Lead sponsor
Cerevel Therapeutics, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Sep 4, 2026, 6:54 AM EDT
Terminated Phase 2 Interventional Results available

PET Imaging of Cyclooxygenase in Multiple Sclerosis

NCT05062083
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
11C-MC1, 11C-PS13, Ketoprofen, Celecoxib
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 99 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 4, 2026, 6:54 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

PET Imaging of Cyclooxygenases in Neurodegenerative Brain Disease

NCT04396873
View directory record Official record
Conditions
Parkinson's Disease, Dementia, Alzheimer's Disease, ALS, Mild Cognitive Impairment
Interventions
11C-MC1, 11C-PS13, 18f-florbetaben
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 99 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Imaging Synapses With [11C] UCB-J in the Human Brain

NCT04038840
View directory record Official record
Conditions
Schizophrenia
Interventions
[11C]UCB-J radiotracer, PET-MR
Drug · Device
Lead sponsor
Davidzon, Guido, M.D.
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
2
States / cities
Palo Alto, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 15, 2024 · Synced Sep 4, 2026, 6:54 AM EDT
No Longer Available No phase listed Expanded access

Clinical Management Decisions for Recurrent Prostate Cancer Patients Based on [11C]Acetate PET Scan

NCT01777061
View directory record Official record
Conditions
Prostate Cancer
Interventions
[11C]Acetate
Drug
Lead sponsor
Wendell Yap, MD
Other
Eligibility
45 Years to 80 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 15, 2018 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Title: Evaluation of a Novel PET Radioligand for Phosphodiesterase-4D (PDE4D)

NCT03861000
View directory record Official record
Conditions
Depression
Interventions
[C-11]T-1650, BPN14770
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 55 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2021 · Synced Sep 4, 2026, 6:54 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

OMAR Opioid Use Disorder

NCT05683184
View directory record Official record
Conditions
Healthy Control, Opioid Use Disorder
Interventions
[11C]OMAR
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Florbetapir Calibration to the Centiloid Scale

NCT02120664
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
Florbetapir (18F), 11C-PiB
Drug
Lead sponsor
Avid Radiopharmaceuticals
Industry
Eligibility
21 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Sep 4, 2026, 6:54 AM EDT
Completed No phase listed Observational

Biodistribution and Pathophysiology Study of 11C-para-aminobenzoic Acid

NCT05611905
View directory record Official record
Conditions
Renal Excretion, Bacterial Infections, Inflammatory Disease, Oncologic Disease
Interventions
11C-para-aminobenzoic acid PET/CT, Probenecid
Combination Product · Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Timeline
2023 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Sep 4, 2026, 6:54 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Discovery and Validation of Genetic Variants Affecting Microglial Activation in Alzheimer's Disease

NCT04840979
View directory record Official record
Conditions
Alzheimer Disease
Interventions
11C-ER176, 18F-florbetaben
Drug
Lead sponsor
Columbia University
Other
Eligibility
50 Years and older
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Terminated Phase 1 Interventional

Multimodal Imaging Outcome Measures for ALS (Image ALS)

NCT04490096
View directory record Official record
Conditions
ALS
Interventions
[11C]-PBR28
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Sep 4, 2026, 6:54 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Investigation of Inflammation Using [C-11]-CS1P1

NCT04517552
View directory record Official record
Conditions
Alzheimer Disease
Interventions
[11C]-CS1P1
Drug
Lead sponsor
Tammie L. S. Benzinger, MD, PhD
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 4, 2026, 6:54 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Longitudinal Imaging of Microglial Activation in Different Clinical Variants of Alzheimer's Disease

NCT04576793
View directory record Official record
Conditions
Alzheimer Disease
Interventions
11C-ER176, 18F-MK6240, 18F-Florbetaben, Lumbar Puncture
Drug · Procedure
Lead sponsor
Columbia University
Other
Eligibility
50 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 4, 2026, 6:54 AM EDT