Please assess the completion status of the following clinical trial:

Trial Title: A Study of the Effectiveness and Safety of Risperidone as add-on Therapy to Mood Stabilizers in the Treatment of Manic Episodes Associated With Bipolar 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:~* Diagnosis of Bipolar Disorder according to Diagnostic and Statistical Manual of Mental Diseases, 4th edition (DSM-IV)~* hospitalized for mania with a score \>=20 on the Young Mania Rating Scale (YMRS) (patients with concurrent symptoms of depression are eligible)~* inpatient for a minimum of the first 4 days of double-blind treatment~* therapy with lithium or valproate (mood stabilizers) at start of treatment with study medication~* medically stable on the basis of physical examination, medical history, and electrocardiogram results.~Exclusion Criteria:~* Other Axis I DSM-IV diagnosis (except nicotine or caffeine dependence)~* history of alcohol or drug abuse or dependence within 4 weeks of starting the study~* seizure disorder requiring medication~* known sensitivity to risperidone, haloperidol, lithium, valproate or carbamazepine~* pregnant or nursing females, or those lacking adequate contraception.

- 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).