Please assess the completion status of the following clinical trial:

Trial Title: A Safety and Effectiveness Study of Methylphenidate HCl Extended-release Tablets in Adults With Attention Deficit Hyperactivity Disorder

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

Eligibility Criteria:
Inclusion Criteria:~* Investigator determined diagnosis of ADHD as defined by the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) criteria with symptomatology from childhood to adulthood, symptoms present before age seven years and continue to meet full DSM-IV criteria at time of assessment~* Diagnosis confirmed by the Adult ADHD Clinical Diagnostic Scale (ACDS) at Baseline and Adult ADHD Investigator Symptom Rating Scale (AISRS) score of 24 or greater as determined by the Investigator at Baseline~* Global Assessment of Functioning (GAF) Scale score of 41 to 60, inclusive, at Baseline~* Minimum weight of 100 lbs (45.4 kg) at Screening~* Negative urine drug test at the Screening and Baseline Visits when tested for drugs of abuse~Exclusion Criteria:~* Known to be non-responders to methylphenidate or other stimulants for the treatment of ADHD~* History of allergy, sensitivity or contraindication to methylphenidate or components of methylphenidate HCL extended-release tablets~* Coexisting medical condition or taking concomitant medication that would interfere with safe administration of methylphenidate in the Investigator's opinion~* Known structural cardiac abnormality~* Diagnosis of or family history of Tourette's syndrome, or motor or verbal tics~* history of seizures or a seizure disorder other than febrile seizures in childhood~* Glaucoma~* Uncontrolled hyperthyroidism or hypothyroidism

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

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