Use of TENS Unit in the Management of Endometriosis Pain

NCT ID: NCT05348005

Last Updated: 2025-10-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-28

Study Completion Date

2025-07-16

Brief Summary

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The purpose of this study is see if Transcutaneous Electrical Nerve Stimulator (TENS) units help decrease endometriosis flare pain. TENS units have a 510K and are intended for relief of pain associated with sore or aching muscles of the lower back, arms, or legs due to strain from exercise or normal household and work activities.

Participants will complete surveys, record pain, medication use and bleeding in an online diary during endometriosis flare ups for 3 months without using the TENS unit. After the first 3 month period of time, a TENS unit will be given to participants to wear and again, record pain, medication use and bleeding in the online diary during endometriosis flare ups for and additional 3 months while using the TENS unit.

Detailed Description

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The investigators propose to conduct a cross-over clinical study to evaluate the effectiveness of TENS units on the management of endometriosis flare-related pain. Subjects will participate in a 3-month "baseline" period (no TENS unit use for endometriosis flares) and then cross-over to a 3-month "treatment" period (TENS unit use for endometriosis flares).

Potential subjects will be pre-screened in the Penn State Minimally Invasive GYN (MIGS) Surgery Clinic for pathologically diagnosed endometriosis and from the Penn State MIGS endometriosis database. Potential subjects will then be called to evaluate the remainder of the inclusion and exclusion criteria. If fulfilled, potential subjects will follow up at the enrollment visit (Visit 1) where consent is reviewed and signed. The baseline QOL and FSFI REDCap surveys will be completed at this visit. Subjects will be set up to receive automated links to complete diary entries and surveys directly in REDCap.

Prior to initiating TENS unit use for endometriosis flare-related pain, subjects will record daily entries into RedCap during episodes of endometriosis flares for 3 months. Each entry will record their VAS pain score as well as medication intake and bleeding profile.

Subjects will then be mailed the TENS unit at the 3 months mark into the study. Subjects will then complete entries with TENS use at their discretion for the following 3 months and record TENS unit use duration, frequency, and side effects in addition to the documentation of pain, medication and bleeding. At the end of the study, subjects will complete a QOL and FSFI survey.

Conditions

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Endometriosis Pelvic Pain

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

cross-over clinical study to evaluate the effectiveness of TENS units on the management of endometriosis flare-related pain. Subjects will participate in a 3-month "baseline" period (no TENS unit use for endometriosis flares) and then cross-over to a 3-month "treatment" period (TENS unit use for endometriosis flares).
Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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No TENS unit use

All subjects will start with 3 months of no TENS use and diary tracking

Group Type NO_INTERVENTION

No interventions assigned to this group

TENS unit use

All subjects will then have 3 months of TENS use during episodes of endometriosis pain flare and diary tracking.

Group Type ACTIVE_COMPARATOR

Ovira Transcutaneous Electrical Nerve Stimulation Unit

Intervention Type DEVICE

TENS units have a wide application from treatment of chronic back pain, chronic abdominal pain, cancer pain, perioperative pain, and labor pain.19-24 TENS units have been shown to be well-tolerated with minimal side effects and have been successful in reducing pain as well as pain medication use in patients with primary dysmenorrhea, which excludes pathology such as endometriosis. 11-18 Certain TENS units have also been FDA approved for the general indication of pelvic pain.

Interventions

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Ovira Transcutaneous Electrical Nerve Stimulation Unit

TENS units have a wide application from treatment of chronic back pain, chronic abdominal pain, cancer pain, perioperative pain, and labor pain.19-24 TENS units have been shown to be well-tolerated with minimal side effects and have been successful in reducing pain as well as pain medication use in patients with primary dysmenorrhea, which excludes pathology such as endometriosis. 11-18 Certain TENS units have also been FDA approved for the general indication of pelvic pain.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Females ages 18-45 years at time of enrollment
2. A surgical diagnosis with direct visualization and/or histopathologic confirmation of endometriosis
3. Average monthly endometriosis pain flare
4. Naïve TENS user

Exclusion Criteria

1. TENS device exclusion:

1. Implantable devices (pacemaker, Interstim, etc.)
2. Cardiac arrhythmia
3. Open skin sores over areas of placement
2. Pregnancy
3. Nursing or trying to conceive at this time
4. Post-operative \<12 weeks from abdominal or pelvic surgery
5. Planned surgery or hormonal medication changes for duration of study if applicable
6. Non-English speaking or inability to read and understand English
7. Prisoners
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Milton S. Hershey Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Kristin Riley, MD

Assistant Professor, Obstetrics and Gynecology; Interim Chief, Minimally Invasive Gynecologic Surgery; Fellowship Program Director, Minimally Invasive Gynecologic Surgery

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kristin W Riley, MD

Role: PRINCIPAL_INVESTIGATOR

Penn State Health Hershey Medical Center

Locations

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Penn State Health Milton S. Hershey Medical Center

Hershey, Pennsylvania, United States

Site Status

Countries

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United States

References

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Armour M, Sinclair J, Chalmers KJ, Smith CA. Self-management strategies amongst Australian women with endometriosis: a national online survey. BMC Complement Altern Med. 2019 Jan 15;19(1):17. doi: 10.1186/s12906-019-2431-x.

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PMID: 32509977 (View on PubMed)

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Reference Type RESULT
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Hurlow A, Bennett MI, Robb KA, Johnson MI, Simpson KH, Oxberry SG. Transcutaneous electric nerve stimulation (TENS) for cancer pain in adults. Cochrane Database Syst Rev. 2012 Mar 14;2012(3):CD006276. doi: 10.1002/14651858.CD006276.pub3.

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Johnson MI. Transcutaneous electrical nerve stimulation (TENS) as an adjunct for pain management in perioperative settings: a critical review. Expert Rev Neurother. 2017 Oct;17(10):1013-1027. doi: 10.1080/14737175.2017.1364158. Epub 2017 Aug 24.

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Reference Type RESULT
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Other Identifiers

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STUDY00019024

Identifier Type: -

Identifier Source: org_study_id

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