Clinical Trial: The Factors Associated With the Recurrence in Patients With Cushing Disease

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title: The Factors Associated With the Recurrence in Patients With Cushing Disease

Brief Summary:

Cushing syndrome refers the manifestations induced by chronic glucocorticoid excess and may arise from various causes. Iatrogenic Cushing syndrome accounts for most patients, when they are given exogenous glucocorticoid treatment. In contrast, spontaneous Cushing syndrome results from endogenous glucocorticoid over-secretion. Although Cushing disease is rare, it is the most common cause of spontaneous Cushing syndrome. The patient with Cushing disease has a pituitary corticotroph adenoma, which overproduces adrenocorticotropic hormone (ACTH). ACTH then stimulates adrenal gland to over-secret glucocorticoid. Patients with untreated Cushing disease were shown to have poor prognosis, estimated a 5-year survival rate of 50%. The first line treatment is tumor resection. Other managements include radiotherapy, medication and bilateral adrenalectomy. The initial remission rate is high (66-90%). However, some patients encounter with disease recurrence during follow-up.

The aim of this study is to clarify the factors associated with the recurrence after treatment. In this study, we will review the patients with Cushing disease thoroughly and analyze associated predisposing factors. These risk factors can remind the clinical physician to early detect the recurrent disease in these patients, and further prevent morbidity and mortality in their later lives.

Detailed Summary:
Sponsor: National Taiwan University Hospital

Current Primary Outcome: Number of participants with disease persistence or recurrence after surgery, which was determined by clinical symptoms, biochemical lab, dynamic test and image study [ Time Frame: participants were followed at 3 months after treatment for short-term outcome measure and followed until the last hospital visit, an average of 4.7 years, for long-term outcome measure ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: National Taiwan University Hospital

Dates:
Date Received: August 27, 2014
Date Started: June 2013
Date Completion:
Last Updated: September 2, 2014
Last Verified: September 2014