NCT02644876

Preventive Effects of Penehyclidine Hydrochloride Inhalation on Postoperative Pulmonary Complications

Preventive Effects of Penehyclidine Hydrochloride Inhalation on Postoperative Pulmonary Complications in High-risk Patients: a Randomized, Double-blind, and Placebo Controlled Study

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 864 (actual)
• Sponsor: Peking University First Hospital · Academic / Other
• Sex: All
• Age: 51 Years
• Healthy volunteers: Not accepted

Summary

Postoperative pulmonary complications (PPCs) are major causes of postoperative morbidity, mortality, and prolonged hospital stay.The incidence of PPCs may be as high as 41% to 75% in high-risk patients. Bronchodilator is frequently used in high-risk patients to prevent PPCs. Penehyclidine is a new anticholinergic agent which selectively block M1 and M3, but not M2 receptors. A pilot study of the investigators showed that prophylactic penehyclidine inhalation reduced the incidence of bronchospasm and the use of aminophylline in elderly patients after long-duration surgery. The purpose of this study is to investigate whether prophylactically penehyclidine inhalation could decrease the incidence of PPCs in high-risk patients after major intrathoracic and upper intraabdominal surgery.

Detailed description

Postoperative pulmonary complications (PPCs) are major causes of postoperative morbidity, mortality, and prolonged hospital stay. The incidence of PPCs was found to vary from 2 to 19%, but this rate might be as high as 41 to 75% in patients after intrathoracic and intraabdominal surgery. According to Canet's model, the predicted incidence of PPCs in high-risk patients (ARISCAT risk index \>= 45 points) is 42.1%. Use of effective strategies to prevent PPCs is essential for these patients. Strategies that have been proved to be beneficial in decreasing PPCs include smoking cessation, proper management of chronic obstructive pulmonary disease before surgery, as well as use of lung-protective ventilation and goal-directed fluid therapy during surgery. Besides, bronchodilator inhalation is also helpful. Studies showed that, in high-risk patients undergoing intrathoracic surgery, airway resistance was increased due to bronchial hyperresponsiveness, which increased the risk of PPCs. Inhalation of anticholinergic bronchodilator can reduce the activity of vagus nerve and relieve high airway resistance, which may decrease the risk of bronchospasm and other PPCs. It has been shown that M1, M3-receptor selective blockers have better effects than β2-receptor activator in dilating bronchia. Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Pulmonary Disease (updated 2014) published by Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommend the use of M1, M3-receptor selective blockers to relieve acute exacerbation of chronic obstructive pulmonary disease (COPD) and improve pulmonary function. Penehyclidine hydrochloride is a new anticholinergic agent, which selectively blocks M1 and M3, but not M2 receptors. Preclinical studies found that it also has anti-inflammation effects. In a pilot study of the investigators, prophylactic inhalation of penehyclidine decreased the incidence of bronchospasm and the use of aminophylline in elderly patients after long-duration surgery. The investigators propose that prophylactic inhalation of penehyclidine might decrease the incidence of PPCs in high risk patients. The purpose of this study is to investigate whether prophylactic penehyclidine inhalation could decrease the incidence of PPCs in high-risk patients after major intrathoracic and upper intraabdominal surgery.

Conditions

• Postoperative Complications

Interventions

Type	Name	Description
DRUG	Penehyclidine inhalation	Penehyclidine inhalation will be administered by inhalation (penehyclidine hydrochloride 0.5 mg/0.5 ml, mixed with normal saline 5.5 ml) once every 12 hours from the night before surgery till the second day after surgery. The total number of inhalation is seven times. Study drug inhalation is performed with the high-flow oxygen-driven method for the non-intubated patients or with the atomizing inhalation device of ventilator for the intubated patients.
DRUG	Placebo inhalation	Placebo inhalation will be administered by inhalation (water for injection 0.5 ml, mixed with normal saline 5.5 ml) once every 12 hours from the night before surgery till the second day after surgery. The total number of inhalation is seven times. Study drug inhalation is performed with the high-flow oxygen-driven method for the non-intubated patients or with the atomizing inhalation device of ventilator for the intubated patients.

Timeline

• Start date: 2015-09-01
• Primary completion: 2018-11-08
• Completion: 2018-12-10
• First posted: 2016-01-01
• Last updated: 2020-11-03

Locations

1 site across 1 country: China