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Lidocaine Patches Prior to Percutaneous Nerve Evaluation

Lidocaine Patches Prior to Percutaneous Nerve Evaluation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05783219
Enrollment
39
Registered
2023-03-24
Start date
2023-05-01
Completion date
2024-04-01
Last updated
2025-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overactive Bladder, Urge Incontinence, Fecal Incontinence

Keywords

lidocaine

Brief summary

The study will be a double-blind randomized control trial comparing 4% lidocaine patch placed over the sacrum 3 minutes prior to a percutaneous nerve evaluation (PNE) procedure to a placebo patch in patients already scheduled to undergo a medically indicated percutaneous nerve evaluation (PNE). VAS pain score, The volume of injectable lidocaine used, Patient Satisfaction Score, rate of successful PNE (defined as successful placement of wire in the S3 spinal foramen), and the amplitude of perineal stimulation on a Likert scale will be collected immediately after the procedure. Patients will follow up in 1 week - as is standard of care with the PNE procedure. Adverse events such as pain or change in sensation will be recorded. Number of voids and incontinence episodes per day after the PNE procedure will be recorded. Overall satisfaction score will be recorded at that time. Rate of progression to Sacral nerve stimulator implantation will be collected. The investigators hypothesize that patients in the lidocaine patch group will experience significantly less pain at the time of PNE as measured by a lower change in VAS pain score when compared with the control group.

Detailed description

The study design will be a double-blind randomized control trial comparing 4% lidocaine patch placed over the sacrum 30 minutes prior to the procedure to placebo patch. Intervention and control patches will be in envelopes labeled with study number and located within the procedure area. A patch from the envelope corresponding to the patient will be placed by a medical assistant or co-investigator who is not associated with the PNE placement procedure 30 minutes prior to the procedure start. Number of voids and incontinence episodes per day prior to the PNE procedure will be recorded. A patch (intervention or control) will be removed by a medical assistant prior to provider entering the room in order to secure blinding. 1% lidocaine 10cc will be injected into the sacral procedure site for adequate pain relief. PNE procedure will then be performed. If inadequate analgesia is reported by the Patient during the procedure, additional injectable lidocaine will be administered in 5 cc increments, not to exceed 4.5 mg/kg of injectable lidocaine. The volume of injectable lidocaine used will be recorded. VAS pain scores prior to and immediately after procedure will be recorded. Patient Satisfaction Score, rate of successful PNE, rate of progression to SNS implantation, and amplitude of perineal stimulation of a Likert scale will be collected immediately after the procedure. Patients will follow up in 1 week - as is standard of care with the PNE procedure. Adverse events such as pain or change in sensation will be recorded. Number of voids and incontinence episodes per day after the PNE procedure will be recorded. The overall satisfaction score will be recorded at that time.

Interventions

4% lidocaine patch placed over the sacrum 30 minutes prior to PNE procedure

OTHERPlacebo

Adhesive patch placed over the sacrum 30 minutes prior to PNE procedure

Sponsors

University of Louisville
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Participants will be randomized with a stratified block randomization scheme (with a random block size of 4, 6, and 8 participants). Randomization sequence will be generated by statistician collaborator A patch (intervention or control) will be removed by a medical assistant prior to provider entering the room in order to secure blinding. 1% lidocaine 10cc will be injected into the sacral procedure site for adequate pain relief. PNE procedure will then be performed. If inadequate analgesia is reported by the Patient during the procedure, additional injectable lidocaine will be administered in 5 cc increments, not to exceed 4.5 mg/kg of injectable lidocaine. The volume of injectable lidocaine used will be recorded.

Intervention model description

This is a single-center, double-blinded, placebo-controlled, randomized trial.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Female patients undergoing sacral neuromodulation to manage their OAB with sacral neuromodulation trial with percutaneous nerve evaluation (PNE) without fluoroscopy. 2. No contraindication to the use of lidocaine patch 3. Age \>18 years old

Exclusion criteria

1. Patients who are not candidates for SNM therapy 2. Patients with contraindications to SNM including pregnancy 3. Allergy to lidocaine or adhesives 4. Chronic pain as an indication for the PNE procedure

Design outcomes

Primary

MeasureTime frameDescription
Visual Analog Scale Pain Scorecollected before and immediately after the PNE procedureVisual Analog Scale pain score (indicating the difference between pre and post-procedural pain scores). The scores in question were 100 mm visual analog scale pain scores. This scale ranges from 0-100mm. Higher 100mm Visual Analog Scale pain scores indicate worsening pain.

Secondary

MeasureTime frameDescription
Rate of Progression to Permanent SNS Implantationto be assessed 6 months after the PNE procedureThe rate of successful reduction in urinary or fecal incontinence symptoms meriting placement of permanent sacral nerve stimulator
Overall Satisfactionimmediately after PNE procedureSatisfaction score collected after PNE procedure. This was accomplished by a Likert scale ranging from not satisfied to somewhat satisfied to moderately satisfied to quite a bit satisfied. with increasing answers indicating increased satisfaction with the Percutaneous nerve evaluation procedural experience.
Volume of Injectable Lidocaine Usedcollected after the PNE procedureThe volume in milliliters of injectable lidocaine used for analgesia with the PNE procedure
Amplitude of Perineal Sensation.collected immediately after the PNE procedureAmplitude of perineal sensation during the PNE procedure. This was accomplished with a 100mm Visual analog scale score. This scale had 0mm indicating no sensation through 100mm indicating the most sensation one has ever felt. This was assessed during percutaneous nerve evaluation stimulation. The aim of the percutaneous nerve evaluation procedure is to achieve high sensation in the region of interest during stimulation - a proxy for appropriate lead placement. Thus, high values on this 100mm Visual analog scale indicate a better outcome.
Rate of Successful PNEcollected immediately after the PNE procedureRate of successful stimulation and lead placement with the PNE procedure

Countries

United States

Participant flow

Participants by arm

ArmCount
Topical Lidocaine Patch
4% lidocaine patch placed over the sacrum 30 minutes prior to PNE procedure Lidocaine patch: 4% lidocaine patch placed over the sacrum 30 minutes prior to PNE procedure 20 participants received the 4% lidocaine patch
20
Placebo
Adhesive patch placed over the sacrum 30 minutes prior to PNE procedure Placebo: Adhesive patch placed over the sacrum 30 minutes prior to PNE procedure 19 participants received the 4% lidocaine patch
19
Total39

Baseline characteristics

CharacteristicPlaceboTotalTopical Lidocaine Patch
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
9 Participants12 Participants3 Participants
Age, Categorical
Between 18 and 65 years
10 Participants27 Participants17 Participants
Age, Continuous57 years
STANDARD_DEVIATION 10
60 years
STANDARD_DEVIATION 14
62 years
STANDARD_DEVIATION 16
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants5 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
18 Participants34 Participants16 Participants
Region of Enrollment
United States
19 participants39 participants20 participants
Sex: Female, Male
Female
19 Participants39 Participants20 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 19
other
Total, other adverse events
0 / 200 / 19
serious
Total, serious adverse events
0 / 200 / 19

Outcome results

Primary

Visual Analog Scale Pain Score

Visual Analog Scale pain score (indicating the difference between pre and post-procedural pain scores). The scores in question were 100 mm visual analog scale pain scores. This scale ranges from 0-100mm. Higher 100mm Visual Analog Scale pain scores indicate worsening pain.

Time frame: collected before and immediately after the PNE procedure

ArmMeasureValue (MEAN)Dispersion
Topical Lidocaine PatchVisual Analog Scale Pain Score45 mmStandard Deviation 17
PlaceboVisual Analog Scale Pain Score61 mmStandard Deviation 21
Secondary

Amplitude of Perineal Sensation.

Amplitude of perineal sensation during the PNE procedure. This was accomplished with a 100mm Visual analog scale score. This scale had 0mm indicating no sensation through 100mm indicating the most sensation one has ever felt. This was assessed during percutaneous nerve evaluation stimulation. The aim of the percutaneous nerve evaluation procedure is to achieve high sensation in the region of interest during stimulation - a proxy for appropriate lead placement. Thus, high values on this 100mm Visual analog scale indicate a better outcome.

Time frame: collected immediately after the PNE procedure

ArmMeasureValue (MEAN)Dispersion
Topical Lidocaine PatchAmplitude of Perineal Sensation.48 mmStandard Deviation 27
PlaceboAmplitude of Perineal Sensation.41 mmStandard Deviation 24
Secondary

Overall Satisfaction

Satisfaction score collected after PNE procedure. This was accomplished by a Likert scale ranging from not satisfied to somewhat satisfied to moderately satisfied to quite a bit satisfied. with increasing answers indicating increased satisfaction with the Percutaneous nerve evaluation procedural experience.

Time frame: immediately after PNE procedure

ArmMeasureGroupValue (NUMBER)
Topical Lidocaine PatchOverall SatisfactionNot Satisfied0 Participants
Topical Lidocaine PatchOverall SatisfactionSomewhat Satisfied2 Participants
Topical Lidocaine PatchOverall SatisfactionModerately Satisfied4 Participants
Topical Lidocaine PatchOverall SatisfactionQuite A Bit Satisfied14 Participants
PlaceboOverall SatisfactionQuite A Bit Satisfied9 Participants
PlaceboOverall SatisfactionNot Satisfied0 Participants
PlaceboOverall SatisfactionModerately Satisfied7 Participants
PlaceboOverall SatisfactionSomewhat Satisfied3 Participants
Secondary

Rate of Progression to Permanent SNS Implantation

The rate of successful reduction in urinary or fecal incontinence symptoms meriting placement of permanent sacral nerve stimulator

Time frame: to be assessed 6 months after the PNE procedure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Topical Lidocaine PatchRate of Progression to Permanent SNS Implantation14 Participants
PlaceboRate of Progression to Permanent SNS Implantation13 Participants
Secondary

Rate of Successful PNE

Rate of successful stimulation and lead placement with the PNE procedure

Time frame: collected immediately after the PNE procedure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Topical Lidocaine PatchRate of Successful PNE20 Participants
PlaceboRate of Successful PNE19 Participants
Secondary

Volume of Injectable Lidocaine Used

The volume in milliliters of injectable lidocaine used for analgesia with the PNE procedure

Time frame: collected after the PNE procedure

ArmMeasureValue (MEAN)Dispersion
Topical Lidocaine PatchVolume of Injectable Lidocaine Used12.7 mLStandard Deviation 4.7
PlaceboVolume of Injectable Lidocaine Used13.4 mLStandard Deviation 5.8

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026