PET Radiopharmaceuticals for Personalized Medicine

Area of Science:

• Nuclear Medicine and Molecular Imaging
• Radiopharmaceutical Chemistry
• Biomedical Engineering

Background:

• Recent technological advancements in self-shielded cyclotrons, targets, hot cells, and automated synthesis modules have revolutionized PET molecular imaging.
• These innovations are crucial for advancing basic biomedical research and theranostics, aiming for evidence-based personalized medicine.
• Existing PET radiopharmaceuticals (RPs) show promise for assessing tumor hypoxia, apoptosis, perfusion, and various cancers.

Purpose of the Study:

• To review recent developments in the synthesis of clinically significant cyclotron and generator-based PET-RPs.
• To highlight the potential applications of these RPs in cardiovascular diseases, neurodegenerative diseases, and cancer.
• To emphasize the role of these advancements in achieving personalized theranostics.

Main Methods:

• Review of novel chemical reactions, including transition metal-mediated cross-coupling and click chemistry, for PET-RP synthesis.
• Discussion of automated synthesis modules, microfluidic systems, and multifunctional nanoparticles for efficient RP development.
• Analysis of multimodality imaging techniques, such as PET/CT, for treatment rationalization and improved diagnostic accuracy.

Main Results:

• Development of novel PET-RPs ([18F]HX4, 18F-FAZA, 18F-FMSIO, [18F]FB-VAD-FMK, 64Cu-PTSM, 68Ga-DOTATOC, 68Ga-DOTANOC) for diverse diagnostic and therapeutic applications.
• Significant reduction in synthesis times and improved efficiency using advanced chemical reactions and automated modules.
• Enhanced resolution in multimodality imaging and reduced radiation exposure for patients and healthcare professionals.

Conclusions:

• Innovative approaches in PET-RP synthesis and imaging capabilities are driving personalized theranostics.
• Future developments promise improved biomarker discovery, internal dosimetry, pharmacokinetics, immunotherapy, and regenerative medicine applications.
• These advancements are pivotal for achieving evidence-based personalized medicine across various disease areas.