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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 ] In August 2019, 68 Ga edotreotide injection ( 68 Ga DOTATOC) was approved for medical use in the United States for use with PET imaging for the localization of somatostatin receptor positive ...
The parent isotope germanium-68 is the longest-lived (271 days) of the radioisotopes of germanium. It has been produced by several methods. [1] In the U.S., it is primarily produced in proton accelerators: At Los Alamos National Laboratory, it may be separated out as a product of proton capture, after proton irradiation of Nb-encapsulated gallium metal. [2]
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 ...
68 Ga III is usually obtained from a dedicated mobile radionuclide source, a Gallium-68 generator, in form of a solution in dilute (0.04–0.1 M) hydrochloric acid (frequently and imprecisely referred to as "68 Ga chloride solution in HCl" despite it contains no species with a Ga–Cl bond but [68 Ga(H 2 O) 6] 3+ complex hydrate cations). [18]
Gallium-68 is only used as a positron emitting tag for a ligand which binds to certain tissues, such as DOTATOC, which is a somatostatin analogue useful for imaging neuroendocrine tumors. Gallium-68 DOTA scans are increasingly replacing octreotide scans (a type of indium-111 scan using octreotide as a somatostatin receptor ligand).
Instead of gamma-emitting 111 In, certain octreotide derivatives such as edotreotide (DOTATOC) or DOTATATE are able to be linked by chelation to positron-emitting isotopes such as gallium-68 and copper-64 which in turn can be evaluated with more precise (compared with SPECT) scanning techniques such as PET-CT.
Advanced Accelerator Applications (AAA or Adacap) is a France-based pharmaceutical group, specialized in the field of nuclear medicine. [1] The group operates in all three segments of nuclear medicine (PET, SPECT and therapy) to diagnose and treat serious conditions in the fields of oncology, neurology, cardiology, infectious and inflammatory diseases.
Copper (64 Cu) oxodotreotide or Copper Cu 64 dotatate, sold under the brand name Detectnet, is a radioactive diagnostic agent indicated for use with positron emission tomography (PET) for localization of somatostatin receptor positive neuroendocrine tumors (NETs) in adults. [2] Common side effects include nausea, vomiting and flushing. [3]