Penehyclidine for Prevention of Nausea and Vomiting After Bimaxillary Surgery

September 14, 2021 updated by: Dong-Xin Wang, Peking University First Hospital

Effects of Penehyclidine in Preventing Postoperative Nausea and Vomiting in Patients Underging Bimaxillary Surgery: A Randomised Controlled Trial

Postoperative nausea and vomiting (PONV) is a common complication after surgery. Patients undergoing orthognathic surgery are reported to have a high rate of PONV, especially those undergoing bimaxillary surgery. Activation of cholinergic system plays an important role in the development of PONV. Penehyclidine is an muscarinic antagonists which selectively block M1 and M3 receptors and is commonly used to decrease oral secretion. The investigators hypothesize that continuously administrated penehyclidine during perioperative period can reduce the incidence of PONV in patients undergoing bimaxillary surgery.

Study Overview

Detailed Description

Postoperative nausea and vomiting (PONV) is one of the most frequently occurred complications after surgery, and are associated with patients' dissatisfaction after anesthesia and surgery. Orthognathic surgery is widely performed for the correction of dentofacial deformities. Despite of improved anti-emetic prophylaxis, patients undergoing orthognathic surgery are reported to have a high incidence of PONV, especially those after bimaxillary surgery.

It is known that activation of central cholinergic system plays an important role in the development of PONV. Muscarinic antagonists such as scopolamine can block muscarinic receptors in the cerebral cortex and produce anti-emetic effects. Penehyclidine is a new muscarinic antagonists which selectively block M1 and M3 receptors. Our previous study indicated that single-dose of penehyclidine injected before anesthesia induction was associated with a reduced risk of PONV during the first 6 h postoperatively.The mean elimination half-life of penehyclidine following single administration is about 10.35 h. Hence, a single-dose penehyclidine may only produce a short duration of antiemetic effect.

The investigators hypothesize that continuously administrated penehyclidine during perioperative period reduces PONV more effectively than single-dose injection in patients undergoing bimaxillary surgery. The purpose of this study is to investigate the effect of continuous administered penehyclidine in preventing PONV in patients undergoing bimaxillary surgery.

Study Type

Interventional

Enrollment (Actual)

354

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Beijing, China, 100081
        • Peking Univeristy Hospital Stomatology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 59 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Age ≥18 years but <60 years; body mass index ≥18 but <30 kg/m2;
  2. Scheduled to undergo elective bimaxillary surgery under general anesthesia;
  3. Planned to use patient-controlled intravenous analgesia (PCIA) after surgery;
  4. Provide written informed consents.

Exclusion Criteria:

  1. Presence of glaucoma;
  2. Allergic to penehyclidine, atropine, scopolamine or other anticholinergic drugs;
  3. Acute or chronic nausea and/or vomiting, or gastrointestinal motility disorders before surgery;
  4. Preoperative antiemetic therapy within 12 hours;
  5. History of schizophrenia, Parkinson's disease or profound dementia, or language barrier;
  6. Severe hepatic dysfunction (Child-Pugh class C), severe renal dysfunction (requirement of renal replacement therapy before surgery) or American Society of Anesthesiologists physical status ≥IV.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Control group
For patients in the control group, a dose of placebo (normal saline 5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of placebo (normal saline 5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron 10 mg, diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
A dose of placebo (normal saline 5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of placebo (normal saline 5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron (10 mg), diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
Other Names:
  • Normal saline
Experimental: Single injection group
For patients in this group, a dose of penehyclidine (0.5 mg/5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of placebo (normal saline 5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron (10 mg), diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
A dose of penehyclidine hydrochloride (0.5 mg/5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of placebo (normal saline 5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron (10 mg), diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
Other Names:
  • Penehyclidine hydrochloride
Experimental: Continuous infusion group
For patients in this group, a dose of penehyclidine (0.25 mg/5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of penehyclidine (0.25 mg/5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron (10 mg), diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
A dose of penehyclidine hydrochloride (0.25 mg/5 ml) is injected intravenously before anesthesia induction. A patient-controlled intravenous analgesia pump is provided after surgery, which is established with a mixture of penehyclidine hydrochloride (0.25 mg/5 ml), sufentanil (1.25-1.5 ug/kg) and tropisetron (10 mg), diluted with normal saline to 100 ml, and programmed to administer a continuous infusion at a rate of 2 ml/h for 48 hours.
Other Names:
  • Penehyclidine hydrochloride

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of nausea and vomiting within 72 hours after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Nausea was assessed by direct questioning. Vomiting was diagnosed when patients retched or expulsed intra-gastric contents.
Up to 72 hours after surgery.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Length of stay in hospital after surgery.
Time Frame: Up to 30 days after surgery.
Length of stay in hospital after surgery.
Up to 30 days after surgery.
Incidence of nausea and vomiting at different stages after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Postoperative 0-6 h, 6-12 h, 12-24 h, 24-48 h, and 48-72 h. Nausea was assessed by direct questioning. Vomiting was diagnosed when patients retched or expulsed intra-gastric contents.
Up to 72 hours after surgery.
Incidence of moderate to severe nausea at different stages after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Postoperative 0-6 h, 6-12 h, 12-24 h, 24-48 h, and 48-72 h. Severity of nausea is assessed with the numerical rating scale (NRS; an 11-point scale where 0=no nausea and 10=the worst nausea). A score of 4 or higher is defined as moderate to severe nausea.
Up to 72 hours after surgery.
Incidence of moderate to severe nausea within 72 hours after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Severity of nausea is assessed with the numerical rating scale (NRS; an 11-point scale where 0=no nausea and 10=the worst nausea). A score of 4 or higher is defined as moderate to severe nausea.
Up to 72 hours after surgery.
Severity of nausea and vomiting within 72 hours after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.

Level I: Absence of any emetic symptoms and nausea during the entire study period.

Level II: Occurrence of mild nausea or one episode of vomiting if caused by an exogenous stimulus (e.g., drinking or movement).

Level III: Moderate to severe nausea, or vomiting for 2 times or more, or experiences nausea that required a rescue antiemetic therapy only once.

Level IV: Patient is suffered more than two emetic episodes or necessitating more than one dose of a rescue antiemetic.

Up to 72 hours after surgery.
Use of rescue antiemetics within 72 hours after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Frequency and dose of antiemetics.
Up to 72 hours after surgery.
Incidence of delirium within the first 5 days after surgery
Time Frame: Up to 5 days after surgery.
Incidence of delirium within the first 5 days after surgery.
Up to 5 days after surgery.
Incidence of complications within 30 days after surgery.
Time Frame: Up to 30 days after surgery.
Incidence of complications within 30 days after surgery.
Up to 30 days after surgery.
All-cause 30-day mortality.
Time Frame: Within 30 days after surgery.
All-cause 30-day mortality.
Within 30 days after surgery.
Cognitive function on the 30th day after surgery.
Time Frame: At 30 days after surgery
Cognitive function is assessed with the modified Telephone Interview for Cognitive Status (TICS-m; a 12-item questionnaire that provides an assessment of global cognitive function by verbal communication via telephone. The score ranges from 0 to 50, with higher score indicating better function).
At 30 days after surgery

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of moderate to severe pain at different stages after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Postoperative 0-6 h, 6-12 h, 12-24 h, 24-48 h, and 48-72 h. Pain intensity is assessed with the numerical rating scale (NRS; an 11-point scale where 0=no pain and 10=the worst pain). A score of 4 or higher is defined as moderate to severe pain.
Up to 72 hours after surgery.
Use of rescue analgesics within 72 hours after bimaxillary surgery.
Time Frame: Up to 72 hours after surgery.
Frequency and dose of analgesics.
Up to 72 hours after surgery.
Subjective sleep quality within 3 days after bimaxillary surgery.
Time Frame: In the morning of the 1st, 2nd, and 3rd days after surgery.
Subjective sleep quality is assessed with the numeric rating scale (NRS; an 11-point scale where 0=the worst sleep and 10=the best sleep).
In the morning of the 1st, 2nd, and 3rd days after surgery.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 7, 2020

Primary Completion (Actual)

March 15, 2021

Study Completion (Actual)

April 15, 2021

Study Registration Dates

First Submitted

June 29, 2020

First Submitted That Met QC Criteria

June 29, 2020

First Posted (Actual)

July 2, 2020

Study Record Updates

Last Update Posted (Actual)

September 16, 2021

Last Update Submitted That Met QC Criteria

September 14, 2021

Last Verified

September 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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