Please assess the completion status of the following clinical trial:

Trial Title: Continuous Positive Airway Pressure (CPAP) Ventilation Using a Novel Full-Face Mask Versus Conventional Helmet

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

Eligibility Criteria:
Inclusion Criteria:~* Ongoing or recent history of respiratory failure (either primary or secondary)~* PaO2 \<60 mmHg if breathing room air or PaO2/FiO2 \<300 mmHg if receiving supplemental oxygen~* Acute dyspnea with respiratory rate \>25 bpm and accessory muscle recruitment and/or paradoxical abdominal breathing~Exclusion Criteria:~* Refusing noninvasive ventilation~* Comatose (Glasgow Coma Scale \<8) or unable to maintain a patent airway~* Hemodynamically unstable (systolic blood pressure \<80 mmHg on recruitment, or receiving vasopressors/inotropes; ongoing angina/myocardial infarction; newly-developed arrhythmia with hemodynamic impact)~* Having recently (≤2 weeks) undergone oesophageal or upper respiratory tract surgery

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 89 Years
- Healthy Volunteers: f

Study Arms:
- Helmet (Type: ACTIVE_COMPARATOR): Patients in this group will receive continuous positive airway pressure delivered through a helmet connected to a high-flow reservoir system.
- Mask (Type: EXPERIMENTAL): Patients in this group will receive continuous positive-airway pressure delivered through a novel full-face mask connected to a high-flow system. Expiratory pressure will be maintained using an expiratory valve connected to a T-tube.

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