Intraoperative Acupoint Stimulation to Prevent Post-Operative Nausea and Vomiting (PONV)

December 3, 2025 updated by: M.D. Anderson Cancer Center

Intraoperative Electrical Stimulation of the Acupoint P6 to Prevent Post-Operative Nausea and Vomiting in Women Undergoing Breast Cancer Surgery

The goal of this clinical research study is to learn if light electrical stimulation to the wrist area during surgery is feasible in women having breast surgery.

Study Overview

Detailed Description

Study Groups:

If you are eligible to take part in this study, you will be randomly assigned (as in the flip of a coin) to 1 of 2 study groups. This is done because no one knows if one study group is better, the same, or worse than the other group.

If you are in Group 1, you will receive light electrical stimulation to the wrist area during surgery. You will also receive standard of care drugs to reduce PONV. If you have nausea or you are vomiting after surgery, you will receive additional standard of care drugs for those symptoms. You may ask the study staff for information about how the drugs are given and their risks.

If you are in Group 2, you will receive standard of care drugs to reduce PONV only (you will not receive electrical stimulation). If you have nausea or you are vomiting after surgery, you will receive additional standard of care drugs for those symptoms.

Electrical Stimulation:

The electrical stimulation is applied through a small sticky pad that is connected to a machine called a neuromuscular blockade monitor (NMBN). NMBNs are routinely used by anesthesiologists to monitor drug levels in muscles during surgery.

The pad will be placed on your wrist after you receive anesthesia and removed at the end of surgery so you will not know what group you are in.

Study Procedures:

Both Groups:

  • You will have blood (about 2 teaspoons) collected intravenously (through your IV) during surgery. This blood will be used for genetic testing that may explain why people respond differently to treatments for nausea and vomiting.
  • You will complete a questionnaire about your pre-treatment expectations and your nausea every 15 minutes after you wake up after surgery until you leave the clinic. It should take about 2-3 minutes to complete the questionnaire each time.

Length of Study:

Your participation in this study will be over once you leave the clinic after surgery.

This is an investigational study. The NMBM monitor is commercially available and FDA approved for use by anesthesiologists to monitor drug levels in the muscles during surgery. Its use in this study to control nausea/vomiting is investigational.

Up to 176 participants will be enrolled in this study. All will be enrolled at MD Anderson.

Study Type

Interventional

Enrollment (Actual)

188

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

    • Texas
      • Houston, Texas, United States, 77030
        • University of Texas MD Anderson Cancer Center

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Adults at least 18 years of age
  2. Female gender
  3. History of patient reported PONV, CINV or motion sickness
  4. Patients scheduled for Breast Surgery
  5. Sign an informed consent indicating they are aware of the investigational nature of this study.

Exclusion Criteria:

  1. Patients scheduled for paravertebral block
  2. Upper extremity deformity contralateral to the site of disease that could interfere with accurate point location or alter the energy pathway as defined by traditional acupuncture theory
  3. Local skin infections at or near the acustimulation site
  4. Pre-existing nausea and vomiting, defined as nausea or vomiting requiring pharmacological treatment greater than 3 times in the week preceding screening
  5. History of CVA or other central nervous system disorder resulting in residual weakness or paresis of extremity contralateral to the site of disease
  6. Grade III or IV upper extremity peripheral neuropathy
  7. Cardiac pacemakers. Patients involved in this protocol will receive electrical stimulation. For safety reasons, electrical stimulation should be avoided in patients with pacemakers
  8. Metal implants for the treatment extremity. For safety reasons, use of electrical stimulation should be avoided
  9. Current acknowledged use of any illicit drugs, medical marijuana (including Marinol), or evidence of alcohol abuse as defined by The American Psychiatric Association criteria. This includes patients who are currently in the recovery process.
  10. Pregnancy as this would alter anesthesia plan
  11. Bowel obstruction
  12. Surgery that would not allow access to at least one P6 site.

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Electrical Stimulation + Standard of Care Antiemetics

Participants receive light electrical stimulation to the wrist area during surgery. Participants also receive standard of care drugs to reduce post-operative nausea and vomiting (PONV).

Questionnaire completed about participant's pre-treatment expectations and their nausea about 15 minutes after they wake up after surgery, then every 30 minutes until they leave the clinic.

Electrical stimulation to the wrist initiated at 1mHz, 1 pulse/second using two leads on a nerve stimulator. Stimulation continued throughout the breast surgery.
4 mg by vein for 1 dose.
Other Names:
  • Ondansetron
10 mg by vein for 1 dose.
Other Names:
  • Decadron
6.25 mg by vein for 1 dose.
Other Names:
  • Promethazine
  • Phenazine
  • Phencen
  • Prometh
  • Prorex
  • V-Gan
10 mg by vein for 1 dose.
Other Names:
  • Famotidine
Questionnaire completed about 15 minutes after participant wakes up after surgery, then every 30 minutes until they leave the clinic. It should take about 2 - 3 minutes to complete the questionnaire.
Other Names:
  • Survey
Active Comparator: Standard of Care Antiemetics

Participants receive standard of care drugs to reduce post-operative nausea and vomiting (PONV).

Questionnaire completed about participant's pre-treatment expectations and their nausea about 15 minutes after they wake up after surgery, then every 30 minutes until they leave the clinic.

4 mg by vein for 1 dose.
Other Names:
  • Ondansetron
10 mg by vein for 1 dose.
Other Names:
  • Decadron
6.25 mg by vein for 1 dose.
Other Names:
  • Promethazine
  • Phenazine
  • Phencen
  • Prometh
  • Prorex
  • V-Gan
10 mg by vein for 1 dose.
Other Names:
  • Famotidine
Questionnaire completed about 15 minutes after participant wakes up after surgery, then every 30 minutes until they leave the clinic. It should take about 2 - 3 minutes to complete the questionnaire.
Other Names:
  • Survey

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy of Intervention to Prevent Post-Operative Nausea and Vomiting (PONV)
Time Frame: During stay in post-operative anesthesia care unit, until discharge, an average of 1 day

Examine the efficacy of electrical stimulation of P6 combined with prophylactic anti-emetics versus pharmacological prophylaxis alone in preventing the incidence of PONV following breast surgery in patients at high-risk for PONV

Complete control is defined as "No nausea≥3 & No vomiting & No use of anti-emetic during PACU stay"

During stay in post-operative anesthesia care unit, until discharge, an average of 1 day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of Conducting Study
Time Frame: At study consent and at PACU discharge
Determine the study feasibility where feasibility is defined by at least 20% of screened patients meeting inclusion criteria ability, 50% of these patients consenting, and 75% of patients within the acupuncture study arm completing all procedures
At study consent and at PACU discharge
Efficacy of Intervention to Prevent Need for Rescue Anti-emetics
Time Frame: During stay in post-operative anesthesia care unit, until discharge, an average of 1 day
Examine the effects of intra-operative NMBM stimulation of P6 on whether or not any anti-emetics were used compared to the control group
During stay in post-operative anesthesia care unit, until discharge, an average of 1 day
Satisfaction
Time Frame: At discharge from post-operative anesthesia care unit
Examine group differences in post-operative patient satisfaction with PONV management. Participants were asked to rate their satisfaction with their nausea and vomiting management on a scale of 0-10, where "0" equals "very dissatisfied", and "10" equals "extremely satisfied".
At discharge from post-operative anesthesia care unit
Efficacy of Intervention to Result in Decreased PACU Length-of-stay
Time Frame: During stay in post-operative anesthesia care unit, until discharge, an average of 1 day
Explore if intra-operative NMBM stimulation of P6 results in decreased PACU length-of-stay
During stay in post-operative anesthesia care unit, until discharge, an average of 1 day
Expectancy
Time Frame: Baseline
Explore the associations between expectancy and response to P6 stimulation. Step 1 of 2 compares expectancy answers between groups. The expectancy questionnaire asks participants what their expectation is of the effects of the intervention on lowering their nausea after surgery, lowering their pain after surgery, enabling them to cope with nausea and/or pain better, and enabling them to have a better recovery after surgery. Possible answers are "Not at all agree", "A little agree", "Moderately agree", "Mostly agree", and "Completely agree".
Baseline
Expectancy and Response to P6 Stimulation
Time Frame: During stay in post-operative anesthesia care unit, until discharge
Explore the associations between expectancy and response to P6 stimulation. Step 2 of 2 compares baseline expectancy answers and response to P6 stimulation outcome directly, without taking into account group assignment. The P6 stimulation outcome was categorized as "Fail" or "Success", where "Success" is defined as "No nausea≥3 & No vomiting & No use of anti-emetic during PACU stay".
During stay in post-operative anesthesia care unit, until discharge

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Alicia M. Kowalski, MD, M.D. Anderson Cancer Center

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.

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)

March 1, 2016

Primary Completion (Actual)

November 26, 2024

Study Completion (Actual)

November 26, 2024

Study Registration Dates

First Submitted

June 12, 2015

First Submitted That Met QC Criteria

June 12, 2015

First Posted (Estimated)

June 16, 2015

Study Record Updates

Last Update Posted (Estimated)

December 5, 2025

Last Update Submitted That Met QC Criteria

December 3, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • 2015-0170
  • NCI-2015-01519 (Registry Identifier: NCI CTRP)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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