AUTHOR=George Siju C. , Samuel E. James Jebaseelan TITLE=Developments in 177Lu-based radiopharmaceutical therapy and dosimetry JOURNAL=Frontiers in Chemistry VOLUME=Volume 11 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2023.1218670 DOI=10.3389/fchem.2023.1218670 ISSN=2296-2646 ABSTRACT=Lu is a radioisotope that has become increasingly popular as a therapeutic agent for treating various conditions, including neuroendocrine tumors and prostate cancer. 177 Lu-tagged radioligands are molecules precisely designed to target and bind to specific receptors or proteins. This review paper will present an overview of the available Lu-labelled radioligands currently used to treat patients. Based on recurring, active, and completed clinical trials and other available literature, we evaluate current status, interests, and developments in assessing patient-specific dosimetry, which will define the future of this particular treatment modality. In addition, we will discuss the challenges and opportunities of the existing dosimetry standards to measure and calculate the radiation dose delivered to patients, which is essential for ensuring treatments' safety and efficacy. Finally, this article intends to provide an overview of the current state of 177 Lu-tagged radioligand therapy and highlight the areas where further research can improve patient treatment outcomes.