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This study is to evaluate the accuracy of a novel radiopharmaceutical tracer, para-chloro-2-[18F]fluoroethyl etomidate (CETO), used with positron emission tomography (PET) and computed tomography (CT), as a way to subtype unilateral vs. bilateral forms of Primary Aldosteronism, compared to AVS as a reference gold standard.
This is a phase II study (with targeted recruitment of 30 participants) designed to evaluate the accuracy of a novel radiopharmaceutical tracer, para-chloro-2-[18F]fluoroethyl etomidate (CETO), used with positron emission tomography (PET) and computed tomography (CT), as a way to subtype unilateral vs. bilateral forms of Primary Aldosteronism, compared to AVS as a reference gold standard. Subjects consenting to study participation will receive the [18-F] CETO followed by the PET/CT scan.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| CETO | Experimental | The consented participants will receive the [18-F] CETO through the IV and a PET/CT scan afterwards. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| [18-F]CETO | Biological | PET/CT will be performed; Non-contrast CT images will be acquired over the adrenals (slice width, ~3 mm). CETO (~2.5 MBq/kg; up to 365 MBq +/- 20%) will be administered as a single dose intravenously and dynamic PET images will be acquired from ~0-90 minutes. |
| Measure | Description | Time Frame |
|---|---|---|
| The primary outcome measure is diagnostic test accuracy (expressed as sensitivity, specificity, positive predictive value, and negative predictive value) for CETO PET/CT using adrenal vein sampling as a reference standard. | It will be measured using adrenal vein sampling approximately the same time as the CETO PET/CT. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Alexander Leung, MD | Contact | (403) 955-8358 | aacleung@ucalgary.ca |
| Name | Affiliation | Role |
|---|---|---|
| Alexander Leung, MD | University of Calgary | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Calgary | Recruiting | Calgary | Alberta | Canada |
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| ID | Term |
|---|---|
| D006929 | Hyperaldosteronism |
| ID | Term |
|---|---|
| D000308 | Adrenocortical Hyperfunction |
| D000307 | Adrenal Gland Diseases |
| D004700 | Endocrine System Diseases |
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