Please assess the completion status of the following clinical trial:

Trial Title: Nivolumab With Chemotherapy in Refractory MDS

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE1/PHASE2
- Number of Arms: 5.0

Eligibility Criteria:
Inclusion Criteria:~* Patients with myelodysplastic syndrome (MDS) (up to 20% blasts) of any risk. Patients with lower risk MDS (low and int-1 by IPSS) should have failed prior non-hypomethylating agent therapy (ie growth factors or lenalidomide). Patients with higher risk MDS (int-2 or high by IPSS) should have failed prior at least one therapy with a hypomethylating agent or Ara-C.~* Age 18 years or older.~* No severe organ dysfunction: creatinine \<=2.5 x ULN; serum bilirubin \<=2.5 x ULN; AST and ALT \<=5 x ULN.~* Karnofsky index \>=70%~* Females of childbearing potential must have a negative serum or urine beta human chorionic gonadotrophin (beta-hCG) pregnancy test result within 24 hours prior to the first dose of treatment and must agree to use an effective contraception to avoid pregnancy for 24 weeks~* Males who have partners of childbearing potential must agree to use an effective contraceptive method during the study and for 24 weeks after the last dose of nivolumab.~Exclusion Criteria:~* Another malignancy requiring treatment at the time of inclusion~* History of interstitial lung disease or pneumonitis~* Patients with any other known concurrent severe and/or uncontrolled medical condition (e.g. uncontrolled diabetes; cardiovascular disease including congestive heart failure NYHA Class III or IV, myocardial infarction within 6 months, and poorly controlled hypertension; chronic renal failure; or active uncontrolled infection) which, in the opinion of the investigator could compromise participation in the study~* Active, known or suspected autoimmune disease requiring treatment at the time of inclusion~* Pregnancy or breastfeeding~* Patients unwilling or unable to comply with the protocol~* Somatic or psychiatric disorder making the patient unable to sign informed consent~* Prior treatment with anti-PD-1, anti-PD-L1, or anti-CTLA4 therapy

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Nivo + FC (Type: EXPERIMENTAL): Nivolumab 1 mg/kg days 1,15 iv q28days Fludarabine 25 mg/m2 days 1-3 iv q28days Cyclophosphamide 300 mg/m2 days 1-3 iv q28days
- Nivo + LDAC + ATRA (Type: EXPERIMENTAL): Nivolumab 1 mg/kg days 1,15 iv q28days Cytarabine 10 mg/m2 bid days 1-10 sc q28days All-trans retinoic acid (ATRA) 45 mg/m2 po qd
- Nivo + LDAC + Sildenafil (Type: EXPERIMENTAL): Nivolumab 1 mg/kg days 1,15 iv q28days Cytarabine 10 mg/m2 bid days 1-10 sc q28days Sildenafil 20 mg tid
- Nivo + Melphalan (Type: EXPERIMENTAL): Nivolumab 1 mg/kg days 1,15 iv q28days Melphalan 2 mg qd days 1-10 q28days
- Nivo + 5-aza (Type: EXPERIMENTAL): Nivolumab 1 mg/kg days 1,15 iv q28days 5-azacitidine 75 mg/m2 days 1-7 q28days

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