Tracers / [68Ga]Ga-DO3A-VS-Cys40-Exendin-4

[68Ga]Ga-DO3A-VS-Cys40-Exendin-4

Also written as [68Ga]Ga-DO3A-VS-Cys40-Exendin-4; [68Ga]Ga-DO3A-VS-Cys40-Exendin-4/PET; [Ga-68]Ga-DO3A-VS-Cys40-Exendin-4; [Ga-68]Ga-DO3A-VS-Cys40-Exendin-4/PET
Radionuclide
Ga-68 t½ 67.71 min
Modality
PET
Production route
Stage
Syntheses indexed
2

What it is

Compound class
DO3A-conjugated exendin-4 peptide (GLP-1 receptor agonist peptide radiotracer)
Target / mechanism
Glucagon-like peptide-1 receptor (GLP-1R) PMID 28721305
Clinical application
PET/CT imaging of GLP-1 receptor for detection of insulinomas and study of pancreatic GLP-1R in type 2 diabetes PMID 28721305
Theranostic pair

Regulatory status

FDA
EMA (centralised)
Other approvals
Brand names

Clinical use

Typical injected activity
Uptake time

Reported in the literature. Not a dosing recommendation.

Published syntheses

ModuleCassettePurificationYield %RCP %Precursor / supplierSource
Modular-Lab (model not stated)HPLC43±2%
no
over 90%DO3A-VS-Cys40-Exendin-428721305
2017 Am J Nucl Med Mol Imaging
synthesis platform, and disposable cassettes for 68Ga-labelling used in the study was purchased from Eckert & Ziegler — The non-decay corrected radiochemical yield was 43±2%
Modular-Lab PharmTracer
Eckert & Ziegler
over 90%DO3A-VS-exendin4
Sanofi
34503957
2022 J Nucl Med
Good-manufacturing-practice–quality 68Ga-exendin4 was produced on an automated synthesizer (Modular Lab Pharm Tracer; Eckert and Ziegler) as developed and reported previously

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Quality control Preliminary — inferred from compound class

Ph. Eur. monograph
USP monograph
AppearancepHRCP HPLCHPLC UVRadionuclidic (HPGe)Half-lifeActivityEndotoxins (LAL)SterilityFilter integrityMolar activityMetal impuritiesGe-68 breakthrough
How this set was arrived at. base set per Ph. Eur. general monograph 0125 (rule); radiometal tracer -> metal impurities (rule); Ga-68, generator production assumed (no synthesis data found) -> Ge-68 breakthrough (preliminary); receptor ligand with a saturable target -> molar activity (rule)

Tests listed by reference only. Monograph texts are copyrighted and are not reproduced here. How these are derived

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Notes

Added from reverse module search (stage 6); 1 article(s) with Ga-68. Compound class inferred from precursor name (not stated outright) -- PMID 28721305: 'DO3A-VS-Cys40-Exendin-4'.