Clinical trials

The primary objective of this study is to evaluate the effectiveness of visual reading in XTR004 PET myocardial perfusion imaging (MPI) for detecting restrictive stenosis, using quantitative coronary angiography (QCA) and fractional flow reserve (FFR) as reference standards in patients with suspected or known coronary artery disease.

This is a prospective, multicenter, randomized, open-label, parallel-controlled Phase IIb study to investigate the diagnostic-prognostic utility of XTR003 Injection integrated with 18F-FDG as an exploratory clinical trial. A total of 40-60 patients will be enrolled and randomized into two study groups as: fasting XTR003/18F-FDG group and glucose-loaded group at a 1:1 ratio. Each group will receive resting myocardial perfusion imaging (MPI) combined with metabolic PET imaging to evaluate myocardial metabolic activity and myocardial viability. Segmental perfusion abnormality, metabolic activity and myocardial viability will be analyzed according to the standard approaches in Nuclear Cardiology. Regional and global left ventricular function will be assessed with cardiac MRI and echocardiography prior to and post the completion of full revascularization within 6-month time point. A repeated resting MPI will also be performed to assess the improvement of perfusion abnormality. All study subjects will undergo 6 months follow-up for major adverse cardiac events (MACE).

Flotufolastat F-18 Injection is a positron emission tomography (PET) imaging tracer that targets the extracellular domain of prostate-specific membrane antigen (PSMA). This phase I study investigated the safety, biodistribution, radiation dosimetry and Pharmacokinetics of Flotufolastat F-18 Injection in 6 healthy elderly Chinese volunteers.

The goal of this clinical trial is to evaluate the diagnostic performance and safety of Flotufolastat F-18 injection PET imaging in prostate cancer subjects with biochemical recurrence following prior treatment. The main question it aims to answer is: • What is the correct detection rate of Flotufolastat F 18 injection PET visual reading results compared to the truth standard? Participants will: * Receive Flotufolastat F-18 injection * Undergo PET/CT scanning

The goal of this clinical trial is to evaluate the efficacy and safety of XTR006 injection PET visual reading in detecting brain neurofibrillary tangles (NFTs) in elderly subjects with Mild Cognitive Impairment (MCI), Alzheimer's Disease (AD), and cognitively normal individuals. The main question it aims to answer is: • What is the sensitivity and specificity of XTR006 PET visual reading results compared to the truth standard across MCI, AD, and cognitively normal subjects? Participants will: * Receive XTR006 injection * Undergo PET/CT scanning