NCT03735004

Brief Summary

Postoperative pain after major surgery for obstructive sleep apnea (OSA), such as palatopharyngoplasty (PPP) and maxillomandibular advancement (MMA) is moderate-to-severe, and may persist for weeks. Control of this pain may be difficult, because OSA patients are very sensitive to traditional opioid pain medications, and their side effects. Poorly controlled pain slows down patients' recovery after surgery, including a return to normal daily activities and work, and may also delay wound healing. This study will investigate whether pain relief and recovery after surgery may be improved with the application of a weak electrical current to the skin of the patient's head (transcranial electrostimulation, TES). The TES works by blocking pain in the central nervous system through multiple mechanisms, which result in non-pharmacological pain relief, without drug-associated side effects.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
45

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 18, 2017

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

November 5, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 8, 2018

Completed
5.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2024

Completed
Last Updated

April 25, 2023

Status Verified

April 1, 2023

Enrollment Period

7.1 years

First QC Date

November 5, 2018

Last Update Submit

April 23, 2023

Conditions

Keywords

electrical stimulationelectric anesthesia

Outcome Measures

Primary Outcomes (4)

  • Opioid requirements during first postoperative TES session

    IV morphine milligram equivalents

    Recorded during a 20 min TES session administered for first moderate-to-severe postoperative pain in the recovery room

  • Pain scores during first postoperative TES session

    VAS pain scores (Pain measured using 11-point visual analog scale 0-10, 0 no pain, 10 worst pain imaginable).

    Recorded during a 20 min TES session administered for first moderate-to-severe postoperative pain in the recovery room

  • Postoperative opioid consumption during recovery room stay

    IV morphine milligram equivalents

    Through the recovery room stay, on average 2.5 hours

  • Postoperative pain scores during recovery room stay

    VAS pain scores

    Through the recovery room stay, on average 2.5 hours

Secondary Outcomes (6)

  • Postoperative opioid consumption during hospital stay

    From "floor ready" until hospital discharge, on average 2 days

  • Post-discharge postoperative opioid consumption

    From hospital discharge to up to 4 weeks postoperatively

  • Time to start of soft diet

    Day of surgery to starting a soft diet (up to 7 days)

  • Time to return to daily activities

    Day of surgery to return to daily activities (up to 10 days)

  • Time to return to work

    From the day of surgery to return to work (up to 21 days)

  • +1 more secondary outcomes

Study Arms (3)

TES 60 Hz DC:AC

EXPERIMENTAL

Transcranial electrostimulation (TES) with combined direct (DC) and alternating (AC, 60 Hz) current

Device: Transcranial electrostimulation (TES)

TES 100 Hz DC:AC

ACTIVE COMPARATOR

Transcranial electrostimulation (TES) with combined direct (DC) and alternating (AC, 100 Hz) current

Device: Transcranial electrostimulation (TES)

TES with DC current

SHAM COMPARATOR

Transcranial electrostimulation (TES) with direct current (DC) only

Device: Transcranial electrostimulation (TES)

Interventions

Transcranial electrostimulation (TES) with combined direct (DC) and alternating (AC) current, or TES with DC only will be administered through the skin electrodes positioned on the patient's head

TES 100 Hz DC:ACTES 60 Hz DC:ACTES with DC current

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may not qualify if:

  • Patients with a known or suspected genetic susceptibility to malignant hyperthermia, or known sensitivity to Sevoflurane, an inhaled anesthetic agent.
  • Pregnant patients.
  • Patients who are unable to understand the questionnaires or the visual analogue scale (VAS) pain scores, or to keep home diaries.
  • Patients with clinically-significant psychological disorders, psychiatric illness or treatment.
  • Alcohol and drug-abusing patients.
  • Patients with the history of seizures.
  • Patients with the documented or suspected organic brain or psychiatric disease, in particular with the history of hallucinations and delusions.
  • Patients with history of significant eye disease, or head or eye injury, which led to alteration of the cranial anatomy or metallic intracranial implants.
  • Patients with the history of significant surgery of the head and/or eye.
  • Patients with skin lesions and/or defects over the areas where TES electrodes will be applied.
  • Patients with implanted medical devices, including cardiac pacemakers.
  • Patients who participate in other research protocols that may interfere with the study outcomes and objectives.
  • Other patients that may be excluded by the investigator, based on medical history and physical examination.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford Univeristy Medical Center

Stanford, California, 94305, United States

RECRUITING

Study Officials

  • Vladimir Nekhendzy, MD

    Stanford University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor of Anesthesiology and Otolaryngology

Study Record Dates

First Submitted

November 5, 2018

First Posted

November 8, 2018

Study Start

July 18, 2017

Primary Completion

August 31, 2024

Study Completion

August 31, 2024

Last Updated

April 25, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations