Please assess the completion status of the following clinical trial:

Trial Title: Local Steroid Injection vs Placebo in Carpal Tunnel Syndrome

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Primary idiopathic CTS~* Symptoms of classic or probable CTS according to the Katz diagnostic criteria (numbness and/or tingling in at least 2 of the 4 median nerve innervated fingers)~* Failed treatment with wrist splinting (2 months)~* Nerve conduction tests showing median neuropathy at the wrist or, if normal, two orthopedic surgeons independently make CTS diagnosis~* Symptom severity that warranted referral for consideration for surgery~Exclusion Criteria:~* Previous steroid injection for CTS~* Thenar muscle atrophy~* Sensory deficit (two-point discrimination \>8 mm)~* Diabetes, thyroid disorder, or inflammatory disease~* Polyneuropathy or vibration-induced neuropathy~* Current pregnancy~* Previous carpal tunnel surgery on the study hand~* Surgery on the contralateral hand in the past 2 months~* Inability to respond to questionnaires~* Severe medical illness~* Known drug/alcohol abuse

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Methylprednisolone 80 mg (Type: EXPERIMENTAL): Local injection of 80 mg Methylprednisolone into the carpal tunnel
- Methylprednisolone 40 mg (Type: EXPERIMENTAL): Local injection of 40 mg Methylprednisolone into the carpal tunnel
- Placebo (Type: PLACEBO_COMPARATOR): Local injection of saline into the carpal tunnel

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