Clinical Trial: Adrenalectomy Versus Follow-up in Patients With Subclinical Cushings Syndrome

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: Adrenalectomy Versus Follow-up in Patients With Mild Hypercortisolism: a Prospective Randomized Controlled Trial

Brief Summary:

Incidental findings of adrenal tumours,"incidentalomas", occur in 1-5 % in the general population and 10-25 % of these patients will exhibit biochemical mild hypercortisolism. Although the patients do not have clinical signs of classical Cushing's syndrome, they have an increased risk for hypertension, dyslipidemia, diabetes mellitus, osteoporosis and obesity.

The hypothesis of the study is, that surgery of the adrenal adenoma responsible for the increased secretion of cortisol, will in part cure or ameliorate the metabolic syndrome.


Detailed Summary:
Sponsor: Region Skane

Current Primary Outcome: Normalization of hypertension [ Time Frame: At two years after intervention ]

Normalization of hypertension according to classification of the World Health Organization (WHO) assessed by 24 hours blood pressure measurement.


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Normalization of diabetes mellitus [ Time Frame: At two years after intervention ]
    Normalization of diabetes mellitus according to the criteria of the WHO and assessed by oral glucose tolerance test
  • Decreased body mass index (BMI) to < 30 [ Time Frame: At two years post intervention ]
    Standard assessment of BMI
  • Bone density [ Time Frame: At two years post intervention ]
    Bone density assessed with dual energy x-ray absorptiometry (DEXA) at the lumbar spine and hip
  • Blood lipids [ Time Frame: At two years post intervention ]
    Triglyceride and cholesterol changes of whole serum and of the lipoprotein classes; low-density-lipoprotein (LDL), very-low-density-lipoprotein (VLDL) and high-density-lipoprotein (HDL)
  • Cardiac function [ Time Frame: At two years post intervention ]
    Cardiac function assessed by echocardiography; left ventricular ejection fraction (EF), left ventricular end-diastolic diameter (LVDD), left ventricular mass index (LVMI), ratio between mitral peak velocity flow of the early filling wave and the atrial wave (E/A ratio)
  • Cognitive function [ Time Frame: At two years after intervention ]
    Mini Mental State Examination (MMSE) for cognitive function
  • Quality of Life [ Time Frame: At two years after intervention ]
    Quality of Life assessed by the generic instrument short form 36 (SF-36).
  • Atherosclerosis [ Time Frame: At one and two years after intervention ]

    Carotid ultrasound/duplex scans with evaluation of intimal thickness and plaques.

    Blood pressure measurement for ankle index



Original Secondary Outcome: Same as current

Information By: Region Skane

Dates:
Date Received: November 18, 2010
Date Started: June 2011
Date Completion: December 2018
Last Updated: April 11, 2017
Last Verified: April 2017