Please assess the completion status of the following clinical trial:

Trial Title: Early Interventions in Children With Attention Deficit/Hyperactivity Disorder

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:~* Attention deficit hyperactivity disorder DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) diagnosis~* Score above 32 on the Swanson, Nolan, and Pelham-IV scale~* Child is registered in a school or day care center~* Children without the use of stimulants or any psychotropic in the last 30 days~Exclusion Criteria:~* Intelligence quotient \<70~* The presence of clinical condition or history of neurological disorder or head trauma with conscience loss~* The presence of affective and psychotic disorders, as well as autism spectrum disorders.~* The absence of a legal representative with the capacity to understand the study objectives and the instructions related to its participation.

- Gender: ALL
- Minimum Age: 47 Months
- Maximum Age: 71 Months
- Healthy Volunteers: f

Study Arms:
- Methylphenidate-psychoeducational group (Type: EXPERIMENTAL): Methylphenidate treatment with a initial dosage of 0,3 mg/kg per day (weekly dosage adjustments) and weekly psychoeducational groups for parents during 8 weeks.
- Parental training-placebo pill (Type: EXPERIMENTAL): Weekly parental training conducted by behavioral psychologists and placebo pill during 8 weeks.
- Psychoeducational group-placebo pill (Type: PLACEBO_COMPARATOR): Weekly psychoeducational groups for parents and placebo pill during 8 weeks.

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