Please assess the completion status of the following clinical trial:

Trial Title: Does Pharmacological Treatment of Attention Deficit Hyperactivity Disorder (ADHD) in Adults Enhance Parenting Performance?

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

Eligibility Criteria:
Inclusion Criteria:~* Parents with a diagnosis of ADHD, who also have a child with an ADHD between the ages of 5-16~Exclusion Criteria:~* Parents with any of the following: any identified structural heart abnormality or other health condition that significantly affects heart performance (e.g., hypertension), a resting systolic blood pressure ≥140 and diastolic blood pressure ≥90, pregnant or breast feeding, significant psychiatric problems other than ADHD that currently require medication or any emergent psychiatric treatment, medical/psychiatric illness that could be worsened by stimulants (such as a seizure disorder, Tourette's Disorder or hyperthyroidism), or alcohol or substance abuse problems in the past 6 months.~* Children with any of the following: any psychiatric problem other than ADHD, Oppositional Defiant Disorder (ODD), or Conduct Disorder (CD) that requires medication or any emergent psychiatric treatment, either parent or child has participated in the same parent-child interaction task used in this study in the last 6 months, either as part of a study or a clinical treatment.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 55 Years
- Healthy Volunteers: f

Study Arms:
- stimulant medication (Type: EXPERIMENTAL): blinded lisdexamfetamine at the optimal dose for the individual participant as previously determined during the med optimization portion of the study
- placebo pill (Type: PLACEBO_COMPARATOR): placebo medication identical in appearance to active med

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