Clinical Trials Logo

PET/CT clinical trials

View clinical trials related to PET/CT.

Filter by:

NCT ID: NCT06320223 Recruiting - Prostate Cancer Clinical Trials

PROMISE PET Registry on PSMA-PET and Outcome in Prostate Cancer

PROMISE-PET
Start date: March 5, 2024
Phase:
Study type: Observational [Patient Registry]

Background: PROMISE criteria have been defined for standardized reporting of Prostate-Specific Membrane Antigen (PSMA) PET whole-body stage of prostate cancer. PSMA PET disease extent by PROMISE has been associated with oncologic outcome. Need: Improved prognostication across various stages of prostate cancer is needed for management guidance and study design. Aim: 1. To assess the prognostic value of PSMA PET 2. To compare the prognostic value of PSMA PET with clinical prognostic scores in patients with prostate cancer at various disease stages Inclusion: - Adult patients with - biopsy/histo proven prostate cancer who - underwent PSMA PET (any type) - for staging or re-staging at any stage and who - have at least 3-year overall survival follow-up data available will be included consecutively. Exclusion: - Patients with neuroendocrine prostate cancer - Patients with metastasized or disseminated malignancy other than prostate cancer

NCT ID: NCT06207747 Active, not recruiting - Melanoma Clinical Trials

Quantitative Analysis of PET/CT Images of Immune Related Side Effects in Metastatic Melanoma Patients

Start date: September 1, 2020
Phase: N/A
Study type: Interventional

New cancer treatment with immune-checkpoint inhibitors (ICIs) has changed the way patients with melanoma and a variety of other cancers are being treated. Many pivotal trials that showed efficacy and safety of ICIs were performed in malignant melanoma. ICI can cause a different type of toxicity, called immune-related adverse events (irAEs). Though the exact pathophysiology is not completely understood, it is believed that irAEs are provoked by immune upregulation and inflammation. However, they can be serious, life-threatening, and warrant hospital admission as well. Dangerous irAEs include myocarditis, myositis, and pneumonitis, among others. Due to the novel mechanism of action, unpredictable nature, and wide usage of this type of treatment in the future, there is urgent need for better control of these potentially dangerous side effects. Early recognition and treatment of irAEs are of great importance in successful management. Positron emission tomography-computed tomography (PET/CT) with [18F]2fluoro-2-deoxy-D-glucose (18F-FDG) is a sensitive, non-invasive, and widely used method for diagnosis and evaluation of treatment efficacy of malignant melanoma. The combination of 18F-FDG-PET and CT allows for assessment of both functional and morphological status of the lesions, and so facilitates better clinical decisions and patient care during treatment. It is also a very sensitive method for recognising inflammation, that can be a signal of irAEs. Quantitative analysis is a rapidly evolving field of PET/CT image analysis. It includes both radiomics and artificial intelligence. Some studies have reported that quantitative analysis could predict efficacy of different cancer treatments. Quantitative image analysis in cancer response assessment is a rapidly expanding field, with the ultimate goal of clinical translation. However, in the specific instance of irAE diagnosis, it is not yet clear what role quantitative analysis of PET/CT scans can play. The hypothesis is that quantitative analysis of PET/CT images provides more information on possible irAE, thus helping to treat these side effects more quickly and successfully.

NCT ID: NCT05955677 Recruiting - Prostate Cancer Clinical Trials

Head-to-head Comparison of [68Ga]Ga-PSMA-D5 With [68Ga]Ga-PSMA-11 PET/CT in PCa Diagnosis, Recurrence, and Metastasis

Start date: July 10, 2023
Phase: Early Phase 1
Study type: Interventional

To prospectively evaluate the radiodrug biodistribution of a novel PET imaging agent [68Ga]Ga-PSMA-D5 in different organs of prostate cancer patients and its diagnostic efficacy in the diagnosis, recurrence and metastasis of prostate cancer, and to compare with [68Ga]Ga-PSMA-11.

NCT ID: NCT05835570 Recruiting - Malignant Neoplasm Clinical Trials

Integrin αvβ6-targeted PET in Malignant Tumors

Start date: January 1, 2023
Phase:
Study type: Observational

Malignant tumors are a significant health threat with high incidence and mortality rates, and molecular imaging is crucial for early diagnosis, staging, prognosis evaluation, and therapeutic efficacy assessment. 18F-FDG PET imaging is widely used, but has limitations. Integrin αvβ6 is a promising target for tumor-targeted imaging, as it is only expressed in cancerous or reconstructed epithelial cells. A new PET probe, 68Ga-Trivehexin, targeting integrin αvβ6 has been developed with better affinity and selectivity than previous probes. Clinical data supports its safety and metabolic stability, and future research will explore its diagnostic and staging value in different types of tumors and compare it to 18F-FDG, providing a new and precise evaluation method for malignant tumors.

NCT ID: NCT05819905 Active, not recruiting - Clinical trials for Non Small Cell Lung Cancer

Radiomics for prEdiction of lunG cAncer biologY

Start date: January 1, 2023
Phase:
Study type: Observational

Therapeutic progress for subgroups of Non Small Cell Lung Cancer can largely be attributed to the accumulation of molecular knowledge and the development of new drugs that specifically target molecular abnormalities. An understanding of the immune landscape of tumors, including immune-evasion strategies, has also led to breakthrough therapeutic advances.These new options require prior treatment tumoral sampling to identify patients who have neoplasms with specific genomic aberrations or favorable immune environment. Medical imaging and radiomic approach may provides surrogate markers non invasively.The objective of the present retrospective study is to build and validate a predictive model of common molecular alterations and PD-L1 expression in NSCLC using pre treatment PET/CT derived radiomics.

NCT ID: NCT05796011 Recruiting - Clinical trials for Age-related Hearing Loss

PET-CT-based Study of Central Mechanisms of Cortical Metabolism in 18F-FDG and 18F-AV1451 Age-related Deafness

Start date: July 6, 2022
Phase:
Study type: Observational

The participants were recruited from elderly subjects in the age range of 60-85 years and audiological assessments, cognitive function assessments, non-invasive brain imaging, behavioral assessments were collected from the normal control group, the elderly deaf non-hearing group and the elderly deaf hearing group according to the inclusion and exclusion criteria. The project aims to investigate the differences in auditory speech and cognitive function in age-related deafness at the behavioural level, and to investigate the central cortical metabolic mechanisms in age-related deafness at the brain imaging level.

NCT ID: NCT05707078 Recruiting - Clinical trials for Head and Neck Squamous Cell Carcinoma

PET/CT Follow up for Head and Neck Squamous Cell Carcinoma

PET Follow
Start date: March 7, 2023
Phase: N/A
Study type: Interventional

PET/CT follow up for Head and Neck Squamous Cell Carcinoma The following is a presentation of a prospective protocol, named PET/CT follow up for Head and Neck Squamous Cell Carcinoma (PET Follow), including patients who have completed radiotherapy treatment for squamous cell carcinoma of the head and neck (HNSCC). The purpose of this study is to investigate the diagnostic performance of 18F-fluorodeoxy-D-glucose (FDG) Positron Emission Tomography/ Computed Tomography (PET/CT) in patients with HNSCC after curative intended treatment.

NCT ID: NCT05496920 Recruiting - PET/CT Clinical Trials

Assessing Ultra-low Dose PET/CT and CT-less PET Using a Long Axial Field-of-view PET/CT System

ULD-PET
Start date: September 13, 2022
Phase: N/A
Study type: Interventional

Latest generation extended axial field-of-view (FOV) PET/CT systems offer the potential for substantial reductions in applied radiopharmaceutical necessary for a clinical scan. However, such low-dose examination protocols have yet to be robustly tested or demonstrated to be non-inferior. Furthermore, extended FOV scanners offer the potential for CT-less attenuation correction of the PET emission data, making clinically acceptable ultra-low dose examination protocols with radiation exposures of < 1 millisievert possible for the first time. The aim of this study is to demonstrate the clinical acceptability of such low and ultra-low dose scanning protocols in a head-to-head prospective study against a full-dose scan using a regular FOV system

NCT ID: NCT05372458 Recruiting - AD Clinical Trials

The Mechanism Study of Diabetic Pancreatic Amyloid Deposition on Cognitive Dysfunction in Alzheimer's Disease

Start date: January 1, 2021
Phase:
Study type: Observational

Alzheimer's disease (AD) is closely related to diabetes (DM). DM will aggravate the progression of AD, but the specific mechanism has not yet been clarified. Previous study found that a key pathological feature of the pancreas in patients with DM is islet amyloid polypeptide, and there is also islet amyloid polypeptide in the brain. Therefore, DM may cause cytotoxicity through the interaction between pancreatic amyloid and brain Aβ protein and further aggravate AD progress. In this study, starting with DM and AD pathological biomarkers, the amyloid PET target molecular probe 18F-AV45 will be used to monitor the dynamic changes of amyloid protein in the brain and pancreas during the development of AD. The completion of this study will provide a new view for understanding the mechanism of DM on AD cognitive dysfunction and effectively preventing and treating these two diseases.

NCT ID: NCT05255926 Recruiting - Clinical trials for Hematological Malignancy

CXCR4-targeted PET/CT Imaging in Hematological Malignancies

Start date: March 1, 2022
Phase: N/A
Study type: Interventional

The incidence and mortality of hematological malignancies remain high. Although 18F-FDG PET/CT imaging is the most common molecular imaging technique used in clinic, the non-specific uptake of 18F-FDG leads to the problems of false negative or positive in hematological malignancies, which makes it difficult to diagnose and evaluate the efficacy. CXCR4 (C-X-C Chemokine Receptor Type 4) is overexpressed in various hematological malignancies, and is associated with poor prognosis. CXCR4-targeted molecular imaging, such as 68Ga-pentixafor PET/CT imaging, has an important potential in hematological malignancies. Therefore, this study will evaluate the efficacy of CXCR4-targeted PET/CT imaging for diagnosis and staging of hematological malignancies, compared with 18F-FDG PET/CT imaging.