Last updated on August 2017

Biomarker Expression in Patients With ACTH-Dependent Cushing's Syndrome Before and After Surgery


Brief description of study

This study will investigate the potential for FK506 binding protein 5 (FKBP5) (and other gene expression markers, for example pentraxin 3 [PTX-3], serum/glucocorticoid regulated kinase 1 [SGK1], and glycogen synthase kinase 3 beta [GSK3b]) to be developed as a biomarker for use in diagnosis of Cushing's syndrome, assessment of effectiveness of medical or surgical treatment, and detection of relapse of endogenous Cushing's syndrome after surgery.

Detailed Study Description

This study will investigate the potential for FK506 binding protein 5 (FKBP5) (and other gene expression markers, for example pentraxin 3 [PTX-3], serum/glucocorticoid regulated kinase 1 [SGK1], and glycogen synthase kinase 3 beta [GSK3b]) to be developed as a biomarker for use in diagnosis of Cushing's syndrome, assessment of effectiveness of medical or surgical treatment, and detection of relapse of endogenous Cushing's syndrome after surgery. The primary study hypothesis is that FKBP5 levels are elevated in patients with Cushing's syndrome, and these levels decrease after successful surgical treatment. This is a non-randomized specimen collection study with pre- and post-surgery follow-up periods. This study will be performed in patients with adrenocorticotropic hormone (ACTH)-dependent Cushing's syndrome scheduled for curative surgery and followed until relapse of endogenous Cushing's syndrome or up to 3 years post-surgery. No study medication will be given.

Clinical Study Identifier: NCT02922257

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Rashi Khare

Los Angeles, CA United States
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Rashi Khare

Rochester, MN United States
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Rashi Khare

Cleveland, OH United States
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Rashi Khare

Seattle, WA United States
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