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Tundra lists 14 Positron Emission Tomography clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT05970913
PET-CT Predicting Lymph Nodes Metastasis
This study is a single-center prospective clinical study that aims to evaluate the predictive value of preoperative 18F-FDG-PET-CT and 18F-FAPI-PET/CT for lymph node metastasis in patients with non-small cell lung cancer. The final pathological results were used to assess the predictive value of PET-CT for lymph node metastasis.
Gender: All
Ages: 20 Years - 80 Years
Updated: 2026-03-23
NCT06634628
iMagemHTT-009- FIH Evaluation of Novel Mutant Huntingtin PET Radioligand [11C]CHDI-00491009
This is a FIH (first-in-human) study to evaluate the clinical utility of the radioligand \[11C\]CHDI-00491009 as a PET tracer that binds specifically to mutant huntingtin (mHTT) aggregates in Huntington's disease (HD). The study is divided into three cohorts defined by the Huntington's Disease Integrated Staging System (HD-ISS): Cohort 1 - initial tracer validation (3 healthy controls (HCs)); Cohort 2 - target validation and test-retest variability (6 HD-ISS Stage 3 participants and 6 age and biological sex-matched HCs); Cohort 3 - target sensitivity (6 HD-ISS Stage 2 participants and 6 age and biological sex-matched HCs). An interim analysis (IA) will be conducted after the completion of each cohort, followed by a final analysis for the study. In addition to imaging, exploratory biomarkers, including somatic instability index, soluble mHTT and total huntingtin (HTT), will be assessed. All participants with HD (PwHD) will have an additional blood sample drawn at the screening visit to assess the somatic instability index and will also be invited to provide an optional cerebrospinal fluid (CSF) sample for measurement of soluble mHTT and total HTT.
Gender: All
Ages: 18 Years - 64 Years
Updated: 2026-03-13
NCT05516719
Longitudinal Investigation of I2BS in PD
In this study, the researchers aim to find a biomarker of PD. Using imaging scans called Positron Emission tomography (PET), Single Photon Emission Computed Tomography (SPECT), and Magnetic Resonance Imaging (MRI). The PET and SPECT scans use small amounts of radiation and specific compounds called tracers, to study chemical changes in the brain in a way not possible with any other procedure. The MRI uses magnetic fields to generate images of brain structure and function
Gender: All
Ages: 25 Years - Any
Updated: 2025-10-07
1 state
NCT05516732
Serotonin Release in Premotor and Motor PD
In this study, the investigators aim to provide a deeper understanding of Parkinson's disease and find a biomarker of Parkinson's disease. This is done using imaging scans called Positron Emission tomography (PET), Single Photon Emission Computed Tomography (SPECT), and Magnetic Resonance Imaging (MRI). The findings will provide a deeper understanding of the brain changes in Parkinson's disease. More importantly, this study will help with the discovery and development of new medications aiming to delay progression of Parkinson's disease symptoms
Gender: All
Ages: 25 Years - 85 Years
Updated: 2025-10-07
1 state
NCT07052214
PSMA PET Combined With MRI for the Detection of PCa
This is an open label, longitudinal Phase 3 study of prostate specific membrane antigen (PSMA) positron emission tomography (PET) combined with magnetic resonance imaging (MRI) compared to standard of care (SOC) for the detection of prostate cancer (PCa).
Gender: MALE
Ages: 18 Years - Any
Updated: 2025-09-10
1 state
NCT06690970
Prostate Specific Membrane Antigen PET/CT Imaging in PSMA-Related Disease Patients
To evaluate the potential usefulness of 68Ga/18F-PSMA/PSFA positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various PSMA-related disease patients.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-08-11
2 states
NCT07098598
Pancreatic Cancer Diagnosis With FAPI-PET Imaging
Staging pancreatic cancer (PC) presents a clinical challenge. Triphasic whole body CT is the primary imaging method in diagnosing, staging and during follow up. Conventional PET/CT with 18F-labelled fluorodeoxyglucose (18F-FDG) has its limitations and therefore has a secondary role in imaging pancreatic cancer patients. These conventional imaging methods are good in detecting primary tumors and distant metastasis but poor in detecting local lymph node metastasis. A new PET tracer, fibroblast activation protein inhibitor (FAPI), targets FAP, a protein overexpressed in cancer-associated fibroblasts. It presents a potential new PET imagining tool. The objective of this prospective diagnostic study is to evaluate the diagnostic efficacy of 18F-FAPI-74 PET/CT in patients with PC. The aim is to evaluate the sensitivity and specificity of 18F-FAPI-74 in detection of local lymph node metastasis and distant metastasis in patient level in patients with PC in primary staging and when suspected recurrence. 100 patients with PC are enrolled on whom PET/CT studies are performed with the novel 18F-FAPI-74 tracer. The data will be collected between 2024-2026.
Gender: All
Ages: 18 Years - 85 Years
Updated: 2025-08-01
NCT06453915
NeuroFLiPP: Parametric PET of Neuroinflammation in Fatty Liver Disease
Alzheimer's Disease and related dementias (ADRD) affect about 6 million people in the U.S. and are the fifth leading cause of death for adults over 65. Recent research is investigating how chronic liver diseases like Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD), which affects one-third of the U.S. population, might influence ADRD through the liver-brain axis. MASLD shares risk factors with Alzheimer's, such as diabetes and hypertension, and studies have linked MASLD to increased risks of cognitive decline and ADRD. Mouse-model studies suggest that chronic liver inflammation in MASLD can induce neuroinflammation and accelerate Alzheimer's pathology, highlighting the importance of studying the liver-brain connection to identify new therapeutic targets for ADRD. The goal of this research is to develop a practical PET imaging method using 18F-FDG to simultaneously assess liver and brain inflammation in patients with MASLD-related ADRD. This approach leverages dynamic FDG-PET scanning and advanced tracer kinetic modeling to quantify glucose transport, overcoming limitations of traditional imaging methods that cannot noninvasively assess chronic liver inflammation. The new method aims to enable comprehensive imaging of liver-brain inflammation crosstalk, validated against the 18F-DPA-714 radiotracer. Success in this project could provide a valuable imaging tool for linking liver inflammation with neuroinflammation and cognitive decline, advancing clinical research and potentially uncovering new pathways for ADRD treatment
Gender: All
Ages: 18 Years - Any
Updated: 2025-06-15
1 state
NCT06827678
Establishment of the Chinese Preclinical Alzheimer's Disease Study With Multiple Neuroimaging
The goal of this observational study is to investigate neuroimage and biomarkers in the Alzheimer's continuum in Chinese population. We aimed to: * To reveal the progress of AD by multiple neuroimage and biomarkers; * To reveal the longitudinal change of biomarkers and cognition of AD in Chinese population; * To investigate the interaction of markers between body and brain; * To set up new markers by neuroimage.
Gender: All
Ages: 45 Years - 90 Years
Updated: 2025-06-05
NCT06419361
[68Ga]Ga-Sa-DABI-4 PET Imaging of Stimulator of Interferon Gene Expression in Cancer Patients
Stimulator of interferon gene (STING) protein plays a vital role in the immune surveillance of tumor microenvironment. Monitoring STING expression in tumors benefits the relevant STING therapy. This study will investigate the safety, biodistribution and potential usefulness of a novel 68Ga-labeled agonist (\[68Ga\]Ga-Sa-DABI-4) for noninvasive positron emission tomography (PET) imaging of STING expression in the tumor microenvironment.
Gender: All
Ages: 18 Years - Any
Updated: 2025-06-04
1 state
NCT06725693
Glucagon-like Peptide-1 Receptor PET/CT in GLP-1R Related Disease
To evaluate the potential usefulness of 68Ga/18F-Exendin 4 positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various GLP-1R-related disease patients.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-02-11
1 state
NCT06690736
Chemokine Receptor 4 PET/CT Imaging of CXCR4-Related Diseases
To evaluate the potential usefulness of 68Ga/18F-Pentixafor/Pentixather positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various CXCR4-related disease patients.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-02-11
1 state
NCT06690957
Somatostatin Receptor PET/CT in SSTR-Related Disease Patients
To evaluate the potential usefulness of 68Ga/18F-TATE/JR11/LM3 positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various SSTR-related disease patients.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-02-11
1 state
NCT06688071
FAPI PET/CT in Various FAP-Related Disease Patients
To evaluate the potential usefulness of 68Ga/18F-FAPI positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various FAP-related disease patients.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-02-11
1 state