Imaging Scans for Malaria

This trial aims to determine if imaging scans can detect malaria parasites in the body. Researchers will use PET/CT scans (18F-fluorodeoxyglucose-positron emission tomography/computed tomography), specialized x-ray machines, to identify malaria in individuals deliberately infected for a separate study. Healthy individuals aged 18 to 54, already enrolled in specific malaria studies, are invited to participate. Participants will undergo two or three scans over several weeks, followed by a health check-up. As an unphased trial, this study allows participants to contribute to groundbreaking research in malaria detection.

The trial does not specify if you need to stop taking your current medications, but if you are on drugs that might interfere with the imaging scans, like certain diabetes medications, you may need to stop them temporarily. It's best to discuss your specific medications with the trial team.

Research has shown that FDG PET/CT scans are generally well-tolerated. This imaging method allows doctors to examine the body, particularly for cancer diagnosis. The FDG tracer used in these scans is common in medical settings and is considered safe for most people.

Some side effects can occur, but they are usually mild. For instance, patients might feel some discomfort at the injection site. The body quickly eliminates the tracer, primarily through urine.

Researchers are excited about using 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) scans for malaria because this imaging technique offers a non-invasive way to visualize and understand the infection in real time. Unlike traditional diagnostic methods that rely on blood tests and clinical symptoms, FDG-PET/CT can provide detailed images of how malaria affects the body, potentially leading to earlier and more precise detection. This innovative approach could enhance our knowledge of malaria's impact on organs and tissues, paving the way for improved treatment strategies in the future.

Research has shown that a special type of scan called FDG-PET/CT effectively detects infections and inflammation in the body. One study found that this scan reliably identifies infection sites in very sick patients. Another study suggested it can detect changes in organs during the early stages of malaria, indicating its potential to locate malaria parasites in the body. In this trial, healthy volunteers co-enrolled in a Plasmodium vivax challenge model will undergo FDG-PET/CT scans to explore its potential in detecting malaria parasites. Overall, FDG-PET/CT has proven useful in diagnosing various diseases, supporting its potential to find malaria parasites.⁶⁷⁸⁹¹⁰