Please assess the completion status of the following clinical trial:

Trial Title: A Study of RO4917838 in Combination With Antipsychotic Treatment in Patients With Schizophrenia.

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* adult patients, 18-60 years of age;~* diagnosis of schizophrenia (based on screening tests);~* outpatients, with no hospitalization for worsening of schizophrenia within 3 months;~* medically and psychiatrically stable over prior 1 month and psychiatrically stable without symptom exacerbation within prior 3 months;~* currently taking no more than 2 antipsychotic drugs.~Exclusion Criteria:~* began a new non-medication treatment for schizophrenia or other psychiatric condition within last 3 months;~* on \>1 antidepressant, or a change in dose of antidepressant within 3 months;~* alcohol or substance abuse or dependence within 3 months;~* has previously received RO4917838.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- 3 (Type: EXPERIMENTAL): None
- 4 (Type: PLACEBO_COMPARATOR): None
- 1 (Type: EXPERIMENTAL): None
- 2 (Type: EXPERIMENTAL): None

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