Please assess the completion status of the following clinical trial:

Trial Title: An Efficacy and Safety Study of Tocilizumab (RoActemra/Actemra) in Participants With Giant Cell Arteritis (GCA)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE3
- Number of Arms: 5.0

Eligibility Criteria:
Inclusion Criteria:~* Diagnosis of GCA classified according to age \>/=50 years; history of ESR \>/=50 mm/hr or history of CRP \>/=2.45 mg/dL; and at least one of the following: unequivocal cranial symptoms of GCA or symptoms of polymyalgia rheumatica \[PMR\]; and at least one of the following: temporal artery biopsy revealing features of GCA or evidence of large-vessel vasculitis by angiography or cross-sectional imaging~* New onset (diagnosis within 6 weeks of baseline) or refractory (diagnosis greater than \[\>\] 6 weeks before baseline and previous treatment with \>/= 40 milligrams per day prednisone \[or equivalent\] for at least 2 consecutive weeks at any time) GCA~* Active disease (presence of clinical signs and symptoms \[cranial or PMR\] and ESR \>/=30 mm/hour or CRP \>/=1 mg/dL) within 6 weeks of baseline visit~Exclusion Criteria:~* Major surgery within 8 weeks prior to screening or planned within 12 months after randomization~* Transplanted organs (except corneas with transplant performed \>3 months prior to screening)~* Major ischemic event, unrelated to GCA, within 12 weeks of screening~* Prior treatment with any of the following: investigational agent within 12 weeks (or 5 half-lives of the investigational drug, whichever is longer) of screening; cell-depleting therapies including investigational agent; intravenous (IV) gamma globulin or plasmapheresis within 6 months of baseline; alkylating agents or with total lymphoid irradiation; tocilizumab; hydroxychloroquine, cyclosporine A, azathioprine, or mycophenolate mofetil within 4 weeks of baseline; etanercept within 2 weeks of baseline; infliximab, certolizumab, golimumab, abatacept, or adalimumab within 8 weeks of baseline; anakinra within 1 week of baseline; tofacitinib; cyclophosphamide within 6 months of baseline; \>100 milligrams of daily IV methylprednisolone within 6 weeks of baseline~* Participants requiring systemic glucocorticoids for conditions other than GCA, which, in the opinion of the investigator, would interfere with adherence to the fixed glucocorticoid taper regimen and/or to assessment of efficacy in response to the test article~* History of severe allergic reactions to monoclonal antibodies or to prednisone~* Evidence of serious uncontrolled concomitant disease (for example, cardiovascular, respiratory, renal, endocrine, psychiatric, corneal ulcers/injuries, or gastrointestinal \[GI\] disease)~* Current liver disease, as determined by the investigator~* History of diverticulitis, inflammatory bowel disease, or other symptomatic GI tract condition that might predispose to bowel perforation~* Known active or history of recurrent bacterial, viral fungal, mycobacterial, or other infection~* Primary or secondary immunodeficiency~* Evidence of malignancies diagnosed within previous 5 years (except basal and squamous cell carcinoma of the skin or carcinoma in situ of the cervix uteri that have been excised and cured)~* Inadequate hematologic, renal or liver function~* Positive for hepatitis B or hepatitis C infection

- Gender: ALL
- Minimum Age: 50 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Part 1: Tocilizumab qw + 26 weeks prednisone taper (Type: EXPERIMENTAL): Participants will receive tocilizumab at a dose of 162 milligrams (mg) as subcutaneous (SC) injection qw up to 52 weeks along with prednisone and/or prednisone placebo according to the protocol-defined schedule. Participants will receive prednisone tapering oral daily doses during the first 26 weeks and prednisone placebo from Week 26 up to Week 52.
- Part 1: Tocilizumab q2w + 26 weeks prednisone taper (Type: EXPERIMENTAL): Participants will receive tocilizumab at a dose of 162 mg as SC injection q2w (and tocilizumab placebo q2w starting from Week 2) up to 52 weeks along with prednisone and/or prednisone placebo according to the protocol-defined schedule. Participants will receive prednisone tapering oral daily doses during the first 26 weeks and prednisone placebo from Week 26 up to Week 52.
- Part 1: Placebo + 26 weeks prednisone taper (Type: PLACEBO_COMPARATOR): Participants will receive tocilizumab placebo as SC injection qw up to 52 weeks along with prednisone and/or prednisone placebo according to the protocol-defined schedule. Participants will receive prednisone tapering oral daily doses during the first 26 weeks and prednisone placebo from Week 26 up to Week 52.
- Part 1: Placebo + 52 weeks prednisone taper (Type: PLACEBO_COMPARATOR): Participants will receive tocilizumab placebo as SC injection qw up to 52 weeks along with prednisone and/or prednisone placebo according to a protocol-defined schedule. Participants will receive prednisone tapering oral daily doses for 52 weeks.
- Part 2: Open-Label Tocilizumab qw (Type: EXPERIMENTAL): Participants without sustained remission at Week 52 will receive open-label tocilizumab at a dose of 162 mg as SC injection qw and/or corticosteroids and/or methotrexate at the discretion of the investigator for a maximum of 104 weeks.

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