Please assess the completion status of the following clinical trial:

Trial Title: STEPS Trial - Spheramine Safety and Efficacy Study

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Advanced Parkinson's disease for at least 5 years~* Good response to L-dopa~* Age 30 to 70 years~* Optimum oral therapy~Exclusion Criteria:~* Tremor only~* Dementia~* Very severe dyskinesia~* Previous brain surgery including deep brain stimulation~* Malignant disease

- Gender: ALL
- Minimum Age: 30 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Arm 1 (Type: EXPERIMENTAL): None
- Arm 2 (Type: SHAM_COMPARATOR): None

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