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DOTA-TATE can be reacted with the radionuclides gallium-68 (T 1/2 = 68 min), lutetium-177 (T 1/2 = 6.65 d) and copper-64 (T 1/2 = 12.7 h) to form radiopharmaceuticals for positron emission tomography (PET) imaging or radionuclide therapy. 177 Lu DOTA-TATE therapy is a form of peptide receptor radionuclide therapy (PRRT) which targets ...
As well as diagnosis and staging of NETs, 68 Ga DOTA conjugated peptide imaging may be used for planning and dosimetry in preparation for lutetium-177 or yttrium-90 DOTA therapy. [35] [36] In June 2016, Netspot (kit for the preparation of gallium Ga-68 dotatate injection) was approved for medical use in the United States. [37] [38]
The use of metal-free columns allows direct labeling of 68 Ga without prepurification, hence making production of gallium-68-radiolabeled compounds more convenient. The mobile phase is a solvent able to elute (wash out) gallium-68 (III) ( 68 Ga 3+ ) after it has been produced by electron capture decay from the immobilized (absorbed) germanium-68.
Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... [68 Ga] DOTA-pseudopeptides [68 Ga] DOTA-TATE [68 Ga] PSMA
Among them, the most commercially important radioisotopes are gallium-67 and gallium-68. Gallium-67 (half-life 3.3 days) is a gamma-emitting isotope (the gamma ray emitted immediately after electron capture) used in standard nuclear medical imaging, in procedures usually referred to as gallium scans. It is usually used as the free ion, Ga 3 ...
Gallium (68 Ga) gozetotide or Gallium (68 Ga) PSMA-11 sold under the brand name Illuccix among others, is a radiopharmaceutical made of 68 Ga conjugated to prostate-specific membrane antigen (PSMA) targeting ligand, Glu-Urea-Lys(Ahx)-HBED-CC, used for imaging prostate cancer by positron emission tomography (PET). [11]
Thus, the octreotide scan is now being replaced in most centers with gallium-68 DOTATATE and copper-64 DOTATATE scans. Somatostatin receptor imaging can now be performed with positron emission tomography (PET) which offers higher resolution and more rapid imaging. [5]
Radionuclides that can be used for imaging include gallium-68, technetium-99m and fluorine-18. [21] Currently used peptides can result in high kidney doses, as the radiopharmaceutical is retained for relatively long periods. Renal protection is therefore used in some cases, taking the form of alternative substances that reduce the uptake of the ...