A Study to Evaluate Safety and Dosimetry of [18F]4-FDF, a New PET Imaging Agent for Inflammation (NCT07253753) | Clinical Trial Compass
CompletedPhase 1
A Study to Evaluate Safety and Dosimetry of [18F]4-FDF, a New PET Imaging Agent for Inflammation
Canada12 participantsStarted 2026-04-08
Plain-language summary
A standard imaging test used to look for disease in the body is a positron emission tomography (PET) scan. These scans use a small amount of a radioactive substance, called a radiotracer. The most commonly used radiotracer is FDG, which shows us how the body uses glucose (a type of sugar). However, because the brain and heart naturally use a lot of glucose, the images can have background 'noise' making it harder for doctors to see signs of disease in these organs.
NeuCaVis is a new type of radiotracer that is being investigated in this study. It works by showing us how the body uses different kind of sugar, fructose. Outside of the digestive system, fructose is not normally used by healthy tissues. It is only used for energy when inflammation is present.
The purpose of this study is to evaluate the safety, tolerability and how NeuCaVis is distributed in normal tissue throughout the body. This is the first time this is being tested in people.
Participants will undergo a series of PET/CT scans following an intravenous injection of NeuCaVis. The first will be 90 minutes, then a 25 minute break, followed by a 10 minute scan, a 105 minute break, then a final 10 minute scan. A follow up phone call will occur 1-3 days later. In the optional sub-set study, participants will return to the clinic approximately 1-2 weeks after the first scan. The additional PET scan is already used in medical care and involves administration of an approved PET radiotracer, \[18F\]FDG. Researchers would compare this scan to the study PET scan with NeuCaVis. For this standard of care scan, it would be necessary to fast (not to eat or drink anything, except water) for at least 12 hours prior to receiving the FDG radiotracer injection.
Who can participate
Age range
18 Years – 55 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Male or female, ages 18-55 years inclusively at time of consent
. Body Mass Index (BMI) of 18 to 30 kg/m2, inclusively
. Capable of providing informed consent
. Able to speak and read in English or French
. Able to comply with all study procedures (including fasting for 12 hours, lying still in a supine position for about 90 minutes)
Exclusion criteria
. Known hypersensitivity NeuCaVis or its excipients
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Incidence of treatment emergent adverse events (TEAEs) and treatment emergent serious adverse events (TESAEs)
Timeframe: Adverse events are collected on each day participants undergo PET scanning (Day 1 and optional sub-study Day 8-15) and at safety follow-up visits two days post scanning.
. Any anatomical heart abnormality, or cardiovascular condition including acute cardiac condition, suspicion of cardiac inflammation, and/or coronary artery disease, that may confound the analysis of the data based on the investigator's clinical opinion.
. Recent (in the past 6 months) history of head trauma
. Abnormal and clinically significant results on the physical examination, vital signs, or laboratory tests at screening.