Please assess the completion status of the following clinical trial:

Trial Title: The Effect of Systemic or Perineural Dexamethasone on the Duration of Interscalene Nerve Blocks With Ropivacaine

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

Eligibility Criteria:
Inclusion Criteria:~Patients undergoing shoulder procedures such as~* Rotator cuff repair~* Capsular shift~* Shoulder arthroplasty~* Subacromial decompression~  • Exclusion Criteria:~ * Contraindications to interscalene block~* Coagulopathy~* Infection at the needle insertion site~* Moderate to severe chronic obstructive pulmonary disease (COPD)~* Contralateral pneumothorax or diaphragmatic paralysis~  * Pregnancy~ * Preexisting neuropathy involving the surgical limb~ * Systemic glucocorticoid treatment (for at least one week) within six months of surgery~ * Routine opioid use (greater than 30 mg oxycodone per day or equivalent)

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- Ropivacaine with perineural dexamethasone (Type: PLACEBO_COMPARATOR): 30 ml 0.5% ropivacaine plus dexamethasone 8 mg (2 ml) mixed with the local anesthetic with 2 ml normal saline given intravenously (systemic placebo);
- Ropivacaine with systemic steroid (Type: ACTIVE_COMPARATOR): 30 ml 0.5% ropivacaine for interscalene block mixed with 2 ml normal saline (perineural placebo) plus dexamethasone 8 mg (2 ml) administered systemically.

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