Automated synthesis of 68 Ga/177 Lu-PSMA on the Trasis miniAllinOne

J Labelled Comp Radiopharm. 2020 Jun 30;63(8):393-403. doi: 10.1002/jlcr.3846. Epub 2020 Jun 1.

Abstract

Prostate-specific membrane antigen (PSMA)-based radioligands for positron emission tomography (PET)/computed tomography (CT) studies represent the gold standard for detection of recurrent prostate cancer (PCa). [68 Ga]PSMA-HBED-CC is a PET radiotracer suitable for detection of PCa, and its clinical use has become widespread over the last few years. In this contribution, we detail our GMP-compliant production of [68 Ga]PSMA-HBED-CC using the Trasis miniAllinOne radiosynthesizer and report synthetic and clinical data for the first 100 productions of 2019. Additionally, we detail our efforts towards a GMP-compliant production of the radiotherapeutic [177 Lu]PSMA-I&T using the same synthesis module. PSMA-based radioligand therapy (RLT) offers a possible future treatment in cases of metastatic castration-resistant PCa, and GMP-compliant routine production methods are therefore called for. This report highlights how PSMA-based agents for theranostic purposes can be conveniently produced at a single radiochemistry Good Manufacturing Practice (GMP) site, thereby facilitating optimized detection and treatment of PCa.

Keywords: GMP; PET/CT; PSMA; [177Lu]PSMA-I&T; [68Ga]PSMA-HBED-CC; prostate cancer.

MeSH terms

  • Antigens, Surface / chemistry*
  • Automation
  • Chemistry Techniques, Synthetic
  • Gallium Radioisotopes / chemistry*
  • Glutamate Carboxypeptidase II / chemical synthesis*
  • Glutamate Carboxypeptidase II / chemistry*
  • Isotope Labeling
  • Lutetium / chemistry*
  • Positron Emission Tomography Computed Tomography
  • Radiochemistry / instrumentation*
  • Radioisotopes / chemistry*

Substances

  • Antigens, Surface
  • Gallium Radioisotopes
  • Radioisotopes
  • Lutetium
  • Gallium-68
  • Lutetium-177
  • FOLH1 protein, human
  • Glutamate Carboxypeptidase II