Please assess the completion status of the following clinical trial:

Trial Title: Efficacy, Safety, Pharmacokinetics and Immunogenicity Study of Abatacept Administered Intravenously to Treat Active Polyarticular-course Juvenile Idiopathic Arthritis in Japan

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Subjects who have a history of an inadequate therapeutic response or intolerance in the opinion of the examining physician to at least one biologics or Methotrexate (MTX).~* Diagnosis of Juvenile Idiopathic Arthritis (JIA) by International League of Associations for Rheumatology (ILAR) criteria as oligoarticular, polyarticular Rheumatoid Factor (RF+), polyarticular (RF-), or systemic with a polyarticular-course.~* Men and women, ages 4 to 17 years, inclusive at enrollment.~* Subjects must have a history of at least 5 joints with active disease and must have currently active articular disease as defined by:~  1. ≥2 active joints (e.g. presence of swelling, or if no swelling is present, limitation of motion (LOM) accompanied by pain, tenderness, or both) at screening and at Week 0 (Day 1).~ 2. ≥2 joints with LOM at screening and at Week 0 (Day 1).~Exclusion Criteria:~* Systemic onset JIA with any of the following manifestations within the last 6 months prior to enrollment: intermittent fever due to JIA, rheumatoid rash, hepatosplenomegaly, pleuritis, pericarditis, or macrophage activation syndrome.~* Presence of any other rheumatic disease or major chronic infectious/inflammatory/immunologic disease (e.g. inflammatory bowel disease, psoriatic arthritis, spondyloarthropathy, hypogammaglobulinemia, or systemic lupus erythematosus, etc.)

- Gender: ALL
- Minimum Age: 4 Years
- Maximum Age: 17 Years
- Healthy Volunteers: f

Study Arms:
- Abatacept (Type: EXPERIMENTAL): Abatacept 10 mg/kg (for body weight less than 75 kg), 750 mg (for body weight between 75 and 100 kg), and 1g (for body weight above 100kg) intravenous infusion on Week 0 (Day 1), Week 2 (Day 15), Week 4 (Day 29) and every 4 weeks (28 days) thereafter up to the end of the study

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