Please assess the completion status of the following clinical trial:

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

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Adrenal tumour with biochemical mild hypercortisolism defined as pathological dexamethasone suppression test (cortisol \> 50 nmol/L at 8.00 am after 1 mg dexamethasone at 10 pm, plus one of the following criteria~  * Low or suppressed adrenocorticotropic hormone (ACTH)~ * Low or suppressed dehydroepiandrosterone (DHEA)~ * No or pathological circadian rhythm of cortisol~Exclusion Criteria:~* Increased levels of 24 hours urinary excretion of cortisol~* Pregnancy or lactation~* Inability to understand information or to comply with scheduled follow-up~* Mild hypercortisolism with bilateral adrenal tumours, without a gradient (lateralization on venous sampling)

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Follow-up (Type: NO_INTERVENTION): Patients who are diagnosed with biochemically mild hypercortisolism (so-called subclinical Cushing´s syndrome), who are followed only.
- Surgery (Type: EXPERIMENTAL): Patients diagnosed with adrenal tumour and with biochemically mild hypercortisolism (so-called subclinical Cushing´s syndrome), operated with adrenalectomy

Based on this trial design, predict the completion outcome and termination type (if applicable).