Please assess the completion status of the following clinical trial:

Trial Title: Study to Evaluate the Safety and Antiviral Activity of Remdesivir (GS-5734™) in Participants With Severe Coronavirus Disease (COVID-19)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE3
- Number of Arms: 4.0

Eligibility Criteria:
Key Inclusion Criteria:~* Willing and able to provide written informed consent, or with a legal representative who can provide informed consent, or enrolled under International Conference on Harmonization (ICH) E6(R2) 4.8.15 emergency use provisions as deemed necessary by the investigator (age ≥ 18), or willing and able to provide assent (age ≥ 12 to \< 18, where locally and nationally approved) prior to performing study procedures~* Aged ≥ 18 years (at all sites), or aged ≥ 12 and \< 18 years of age weighing ≥ 40 kg (where permitted according to local law and approved nationally and by the relevant institutional review board (IRB) or independent ethics committee (IEC))~* Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 infection confirmed by polymerase chain reaction (PCR) test ≤ 4 days before randomization~* Currently hospitalized~* Peripheral capillary oxygen saturation (SpO2) ≤ 94% or requiring supplemental oxygen at screening~Key Exclusion Criteria:~* Participation in any other clinical trial of an experimental treatment for COVID-19~* Concurrent treatment with other agents with actual or possible direct acting antiviral activity against SARS-CoV-2 is prohibited \< 24 hours prior to study drug dosing~* Evidence of multiorgan failure~* Mechanically ventilated \[including veno-venous (V-V) extracorporeal membrane oxygenation (ECMO)\] ≥ 5 days, or any duration of veno-arterial (V-A) ECMO.~* Alanine Aminotransferase (ALT) or aspartate aminotransferase (AST) \> 5 X upper limit of normal (ULN)~* Creatinine clearance \< 50 mL/min using the Cockcroft-Gault formula for participants ≥ 18 years of age {Cockcroft 1976} and Schwartz Formula for participants \< 18 years of age~Note: Other protocol defined Inclusion/Exclusion criteria may apply.

- Gender: ALL
- Minimum Age: 12 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Part A: Remdesivir (RDV), 5 Days (Type: EXPERIMENTAL): Participants will receive continued standard of care therapy together with RDV 200 mg on Day 1 followed by RDV 100 mg on Days 2, 3, 4, and 5.
- Part A: Remdesivir, 10 Days (Type: EXPERIMENTAL): Participants will receive continued standard of care therapy together with RDV 200 mg on Day 1 followed by RDV 100 mg on Days 2, 3, 4, 5, 6, 7, 8, 9, and 10.
- Part B: Remdesivir, 10 Days (Extension) (Type: EXPERIMENTAL): Part B (Extension) will enroll participants after enrollment to Part A is complete. Participants will receive continued standard of care therapy together with RDV 200 mg on Day 1 followed by RDV 100 mg on Days 2-10.
- Part B: Remdesivir 10 days (Mechanically Ventilated) (Type: EXPERIMENTAL): Participants on mechanical ventilation will receive continued standard of care therapy together with RDV 200 mg on Day 1 followed by RDV 100 mg on Days 2-10

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