Please assess the completion status of the following clinical trial:

Trial Title: Effect of Magnesium Sulphate Infusion on Lung Mechanics and Oxygenation in COPD Patients Undergoing Total Laryngeal

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

Eligibility Criteria:
Inclusion Criteria:~* Patients undergoing cancer larynx surgery (partial laryngectomy, total laryngectomy with or without neck dissection).~* Age more than 40 years old~* ASA physical status II and III.~* Diagnosed as having COPD by preoperative spirometry. The classification is bases on the post-bronchodilators forced expiratory volume in the first second (FEV1). Mild COPD is diagnosed when FEV1 is \> 80% of predicted while moderate COPD is diagnosed when FEV1 is \< 80% and \> 50% of predicted and sever COPD is diagnosed when FEV1 is \< 50% and \> 30% of predicted~Exclusion Criteria:~* o Patients with heart failure.~  * History with arrhythmias or treatment with antiarrhythmic drugs.~ * Patient with heart block or on beta blockers or calcium channel blockers.~ * Patients with impaired renal function (creatinine \> 2)~ * Patients with impaired liver function (ALT more than 2 folds).~ * Patient with combined restrictive and obstructive pulmonary disease.~ * Patients with preoperative tracheostomy.~ * Patients with huge mass obstructing \> 50% of the view. (due to its influence on the spirometry measurements).

- Gender: ALL
- Minimum Age: 40 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Mg-group (Type: EXPERIMENTAL): 10% MgSO4 solution will be used, a loading dose of 30mg/kg over 20 min (equivalent to infusion rate of 0.9 ml/kg/hr for 20 min) will be given followed by continuous infusion of 10mg/kg/hr (equivalent to infusion rate of 0.1ml/kg/hr).
- Control group (Type: NO_INTERVENTION): In control group, same rates of infusion for loading and maintenance will be applied using 0.9 normal saline.

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