Please assess the completion status of the following clinical trial:

Trial Title: Prehospital Laryngeal Tube vs. Bag-Valve Mask Ventilation Used by Paramedics During CPR

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Cardiac arrest~Exclusion Criteria:~* Paramedic does not want to use laryngeal tube~* Physician on site before paramedic~* Foreign body airway obstruction

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Bag-valve mask ventilation (Type: ACTIVE_COMPARATOR): Bag-valve mask ventilation during CPR, i.e. traditional ventilation during CPR. Airway management with bag-valve mask ventilation and efficient ventilation: yes or no?~Intervention is Bag-valve mask ventilation during CPR
- Laryngeal Tube (Type: ACTIVE_COMPARATOR): Laryngeal Tube Ventilation during CPR, i.e. the alternative ventilation technique to be compared to the traditional technique. Airway management with laryngeal tube and efficient ventilation: yes or no?~Intervention is Ventilation through laryngeal tube during CPR

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