Please assess the completion status of the following clinical trial:

Trial Title: Simvastatin Augmentation of Lithium Treatment in Bipolar Depression

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion:~* Age 18-65~* written informed consent~* meets Diagnostic and Statistical Manual - IV (DSM-IV) criteria (by Structured Clinical Interview for DSM-IV (SCID-I/P)) for bipolar I disorder, current episode depressed~* Montgomery-Asberg Depression Scale (MADRS) score of at least 20 (i.e., moderate depression) and no greater than 34 (i.e., severe depression) at screen and baseline visit~* Young Mania Rating Scale (YMRS) score \< 12 at screen and baseline visit~* currently treated with a lithium preparation (carbonate or citrate) at stable dose for at least 4 wks with level \>0.4 and \<1.0; and/or valproate at stable dose for at least 4 wks at level \>60 and \<110; and/or other atypical antipsychotic at stable dose for at least 4 weeks (at least minimum FDA-labeled dose).~Exclusion:~* Psychotic features in the current episode, as assessed by YMRS item #8\>6~* felt by the study clinician to require inpatient hospitalization for adequate management~* more than 3 failed pharmacologic interventions in the current major depressive episode, exclusive of primary mood stabilizer~* current substance use disorder other than nicotine, by SCID-I/P~* pregnant women or women of child bearing potential who are not using a medically accepted means of contraception (to include oral contraceptive or implant, condom, diaphragm, spermicide, intrauterine device, tubal ligation, or partner with vasectomy)~* women who are breastfeeding~* serious suicide or homicide risk, as assessed by evaluating clinician~* other unstable medical illness including cardiovascular, hepatic, renal, respiratory, endocrine, neurological, or hematological disease, based on review of medical history, physical examination, and screening laboratory tests~* patients who have taken an investigational psychotropic drug within the last 30 days~* patients receiving additional anticonvulsant, antipsychotic, or antidepressant within 1 week prior to study entry~* patients requiring continued treatment with excluded medications (see below).~Excluded medications: other statins, which could influence Wnt signaling; any other drug known to interact with simvastatin, including potent inhibitors/inducers of CYP3A4 such as itraconazole, ketoconazole, posaconazole, erythromycin, clarithromycin, telithromycin, voriconazole, cyclosporine or danazol; gemfibrozil or other lipid-lowering drugs that can cause myopathy when given alone; amiodarone, ranolazine, verapamil, diltiazem, or amlodipine; niacin; digoxin; coumarin anticoagulants; colchicine; nefazodone; protease inhibitors including ritonavir, indinavir, nelfinavir, or saquinavir.~Allowed: benzodiazepines and sedative-hypnotic agents if dosage has been stable for 2 weeks prior to study entry; thyroid or estrogen replacement provided dosage has been stable for 1 month; antidepressants, antipsychotics, and anticonvulsants provided dosage has been stable for 1 week prior to study entry.

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

Study Arms:
- Simvastatin-Simvastatin (Type: EXPERIMENTAL): Subjects will receive simvastatin in phase 1 (4 weeks) and phase 2 (4 weeks)
- Placebo->Simvastatin (Type: EXPERIMENTAL): Placebo non-responders after the 1st 4 weeks will be re-randomized 1:1 to placebo or simvastatin for the next 4 weeks
- Placebo-Placebo (Type: PLACEBO_COMPARATOR): Placebo nonresponders for the 1st 4 weeks will be re-randomized 1:1 to placebo or simvastatin for the subsequent 4 weeks

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