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Updated: Dec 31, 2025

Development of a 68Gallium-Labeled D-Peptide PET Tracer for Imaging Programmed Death-Ligand 1 Expression
Published on: February 3, 2023
Advances in GLP-1 receptor targeting radiolabeled agent development and prospective of theranostics
Irina Velikyan1, Olof Eriksson2
1Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden.
Abstract:
In the light of theranostics/radiotheranostics and prospective of personalized medicine in diabetes and oncology, this review presents prior and current advances in the development of radiolabeled imaging and radiotherapeutic exendin-based agents targeting glucagon-like peptide-1 receptor. The review covers chemistry, preclinical, and clinical evaluation. Such critical aspects as structure-activity-relationship, stability, physiological potency, kidney uptake, and dosimetry are discussed.
Insights
Radiolabeled exendin agents targeting the glucagon-like peptide-1 receptor show promise for personalized diabetes and oncology theranostics. This review covers their development, evaluation, and key properties for clinical use.
Area of Science:
- Nuclear medicine
- Endocrinology
- Oncology
- Medicinal chemistry
Background:
- Personalized medicine and theranostics are advancing diabetes and oncology treatments.
- Glucagon-like peptide-1 receptor (GLP-1R) is a key target in these diseases.
- Exendin-based agents offer a platform for developing targeted radiopharmaceuticals.
Purpose of the Study:
- To review advances in radiolabeled exendin-based agents for GLP-1R imaging and therapy.
- To discuss the chemistry, preclinical, and clinical evaluations of these agents.
- To highlight critical factors influencing their therapeutic and diagnostic potential.
Main Methods:
- Literature review of radiolabeled exendin agents.
- Analysis of structure-activity relationships.
- Evaluation of preclinical and clinical data including stability, potency, and dosimetry.
Main Results:
- Development of various radiolabeled exendin analogs for GLP-1R targeting.
- Demonstrated potential for both diagnostic imaging and therapeutic applications.
- Identified key challenges such as kidney uptake and need for optimized dosimetry.
Conclusions:
- Radiolabeled exendin agents represent a promising theranostic approach for GLP-1R-related diseases.
- Further optimization is needed to improve clinical efficacy and safety.
- These agents align with the goals of personalized medicine in diabetes and oncology.
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