Please assess the completion status of the following clinical trial:

Trial Title: A Study to Compare the Efficacy and Safety of JCAR017 to Standard of Care in Adult Subjects With High-risk, Transplant-eligible Relapsed or Refractory Aggressive B-cell Non-Hodgkin Lymphomas

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Subject is ≥ 18 years and ≤ 75 years of age at the time of signing the informed consent form (ICF).~2. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1.~3. Histologically proven diffuse large B-cell lymphoma (DLBCL) NOS (de novo or transformed indolent NHL), high grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements with DLBCL histology (double/triple-hit lymphoma \[DHL/THL\]), primary mediastinal (thymic) large B-cell lymphoma (PMBCL), T cell/histiocyte-rich large B-cell lymphoma (THRBCL) or follicular lymphoma grade 3B. Enough tumor material must be available for confirmation by central pathology.~4. Refractory or relapsed within 12 months from CD20 antibody and anthracycline containing first line therapy.~5. \[18F\] fluorodeoxyglucose (FDG) positron emission tomography (PET) positive lesion at screening. (Deauville score 4 or 5)~6. Adequate organ function~7. Participants must agree to use effective contraception~Exclusion Criteria:~1. Subjects not eligible for hematopoietic stem cell transplantation (HSCT).~2. Subjects planned to undergo allogeneic stem cell transplantation.~3. Subjects with, primary cutaneous large B-cell lymphoma, EBV (Epstein-Barr virus) positive DLBCL, Burkitt lymphoma or transformation from chronic lymphocytic leukemia/small lymphocytic lymphoma (Richter transformation).~4. Subjects with prior history of malignancies, other than aggressive R/R NHL, unless the subject has been free of the disease for ≥ 2 years with the exception of the following noninvasive malignancies:~   * Basal cell carcinoma of the skin~  * Squamous cell carcinoma of the skin~  * Carcinoma in situ of the cervix~  * Carcinoma in situ of the breast~  * Incidental histologic finding of prostate cancer (T1a or T1b using the TNM \[tumor, nodes, metastasis\] clinical staging system) or prostate cancer that is curative.~  * Other completely resected stage 1 solid tumor with low risk for recurrence~5. Treatment with any prior gene therapy product.~6. Subjects who have received previous CD19-targeted therapy.~7. Subjects with active hepatitis B, or active hepatitis C are excluded. Subjects with negative polymerase chain reaction (PCR) assay for viral load for hepatitis B or C are permitted. Subjects positive for hepatitis B surface antigen and/or anti-hepatitis B core antibody with negative viral load are eligible and should be considered for prophylactic antiviral therapy. Subjects with a history of or active human immunodeficiency virus (HIV) are excluded.~8. Subjects with uncontrolled systemic fungal, bacterial, viral or other infection (including tuberculosis) despite appropriate antibiotics or other treatment.~9. Active autoimmune disease requiring immunosuppressive therapy.~10. History of any one of the following cardiovascular conditions within the past 6 months prior to signing the ICF: Class III or IV heart failure as defined by the New York Heart Association (NYHA), cardiac angioplasty or stenting, myocardial infarction, unstable angina, or other clinically significant cardiac disease.~11. History or presence of clinically relevant central nervous system (CNS) pathology~12. Pregnant or nursing (lactating) women.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- Arm A - Standard of Care (SOC) (Type: ACTIVE_COMPARATOR): Subjects should receive SOC (R-DHAP, R-ICE or R-GDP) followed by HDCT (BEAM) and HSCT. Standard of care regimen will be administered as per investigator decision.
- Arm B - JCAR017 (Type: EXPERIMENTAL): Lymphodepleting chemotherapy with intravenous (IV) fludarabine (30 mg/m2/day for 3 days) plus cyclophosphamide IV (300 mg/m2/day for 3 days) (flu/cy) concurrently followed by JCAR017 infusion.

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