Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

gallium Ga 68-HA-DOTA-TATE

A radioconjugate consisting of consisting of the high affinity somatostatin analogue iodo-tyrosine-3-octreotate (HA-TATE), labeled with the positron emission tomography (PET) tracer gallium Ga 68 via the macrocyclic chelating agent 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetra-acetic acid (DOTA), which may be used as a human somatostatin receptor (SSTR) imaging agent in conjunction with PET to image neuroendocrine tumors (NETs). Gallium Ga 68-HA-DOTATATE binds to SSTRs, with high affinity for SSTR2, present on the cell membranes of many types of NETs. This allows for visualization of SSTR-positive cells upon imaging. SSTRs have been shown to be present in large numbers on NETs and their metastases, while most other normal tissues express low levels of SSTRs. HA-TATE is an octreotide derivative in which phenylalanine at position 3 is substituted with iodo-tyrosine and threoninol at position 8 is replaced by threonine. The iodo addition in Gallium Ga 68-HA-DOTA-TATE may allow for higher affinity for the SSTRs when compared to gallium Ga 68-DOTA-TATE.
Check for active clinical trials using this agentView this agent in the NCI Thesaurus
Synonym:[68Ga]DOTA-3-iodo-Tyr3-octreotate
[68Ga]high-affinity DOTATATE
68Ga-DOTA-3-iodo-Tyr3-octreotate
68Ga-DOTA-iodoTyr3-octreotate
68Ga-HA-DOTATATE
Search NCI's Drug Dictionary
Please enter up to 30 characters for your search