Please assess the completion status of the following clinical trial:

Trial Title: A Study for Improving the Outcome of Childhood Acute Promyeloid Leukemia

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patients less than 16 years old with newly diagnosed PML-RARa positive acute promyelocytic leukemia.~Exclusion Criteria:~* Patients who have coma, convulsion or paralysis due to intracranial hemorrhage or central nervous system leukemia at diagnosis.

- Gender: ALL
- Minimum Age: None
- Maximum Age: 16 Years
- Healthy Volunteers: f

Study Arms:
- ATO and chemotherapy (Type: ACTIVE_COMPARATOR): Induction:~ATRA 25mg/m2 d1-CR ≯42 days; ATO 0.16mg/kg d5-CR ≯42 days; mitoxantrone (MA) 10mg/m2 d3, or 7mg/m2 d2-4 (high risk).~Consolidation 1:~ATRA 25mg/m2 d1-15; MA 10mg/m2 d1-2; Intrathecal injection (IT)：Ara-C 15mg (age \< 1 year), or 20 mg (1-3 years), or 30 mg ( \> 3 years), dexamethasone 2mg.~Consolidation 2:~ATRA 25mg/m2 d1-15; ATO 0.16mg/kg d1-15; Ara-C 1g/m2 q12h d1-2 (high risk); IT.~Consolidation 3:~ATRA 25mg/m2 d1-15; ATO 0.16mg/kg d1-15; MA 10mg/m2 d1; Ara-C 1g/m2 q12h d1-2 (high risk); IT.~Maintenance:~① ATO 0.16mg/kg.d w1-2; ATRA 25mg/m2.d w1-2; MTX 20mg/m2 qw w3-12; 6MP 50mg/m2 qn w3-12. ② ATRA 25mg/m2.d w1-2; MTX 20mg/m2 qw w3-12; 6MP 50mg/m2 qn w3-12. Rotation between ① and ② until the end of maintenance.
- RIF and chemotherapy (Type: EXPERIMENTAL): Induction:~ATRA 25mg/m2 d1-CR ≯42 days; RIF 0.135/kg d5-CR ≯42 days; mitoxantrone (MA) 10mg/m2 d3, or 7mg/m2 d2-4 (high risk).~Consolidation 1:~ATRA 25mg/m2 d1-15; MA 10mg/m2 d1-2; Intrathecal injection (IT)：Ara-C 15mg (age \< 1 year), or 20mg (age 1-3 years), or 30mg (age \> 3 years), dexamethasone 2mg.~Consolidation 2:~ATRA 25mg/m2 d1-15; RIF 0.135/kg d1-15; Ara-C 1g/m2 q12h d1-2 (high risk); IT.~Consolidation 3:~ATRA 25mg/m2 d1-15; RIF 0.135/kg d1-15; MA 10mg/m2 d1; Ara-C 1g/m2 q12h d1-2 (high risk); IT.~Maintenance:~① RIF 0.135/kg.d w1-2; ATRA 25mg/m2.d w1-2; MTX 20mg/m2 qw w3-12; 6MP 50mg/m2 qn w3-12. ② ATRA 25mg/m2.d w1-2; MTX 20mg/m2 qw w3-12; 6MP 50mg/m2 qn w3-12. Rotation between ① and ② until the end of maintenance treatment.

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