NCT00932360

Brief Summary

Fibromyalgia as a clinical syndrome is defined by chronic widespread muscular pain, fatigue and tenderness with hyperalgesia to pressure over tender points. Pain associated with fibromyalgia can interfere with daily function, work, and social activities. Thus, one of the main treatments for patients with fibromyalgia must focus on pain relief to allow the person to function more independently both at home and at work. Although the etiology of fibromyalgia is unknown, there is clearly enhanced sensitization in the central nervous system pain pathways as demonstrating by decreases in pressure pain thresholds, reduced central inhibition, and enhanced temporal summation. Reducing pain in people with fibromyalgia would help increase the patient's ability to return to work, perform activities of daily living and thus improve the quality of life for the patient. Transcutaneous electrical nerve stimulation (TENS) is a modality utilized in physical therapy that delivers electrical stimulation through the skin and is used for both acute and chronic pain. TENS works by reducing central excitability and increasing central inhibition. Thus, the investigators hypothesize that application of Transcutaneous Electrical Nerve Stimulation (TENS) to patients with Fibromyalgia (FM) will reduce pain, reduce central excitability by restoring diffuse noxious inhibitory controls (DNIC), and reduce temporal summation and that this decrease in pain and/or central excitability will improve function. The primary aim of the study is to test the effectiveness of TENS on pain and central excitability in a crossover design study for patients with Fibromyalgia with random assignment to three treatments: no treatment control, placebo TENS and active high frequency TENS. A secondary aim is to test the effect of decreased pain and central excitability on function in patients with Fibromyalgia.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
43

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2009

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

June 1, 2009

Completed
22 days until next milestone

First Submitted

Initial submission to the registry

June 23, 2009

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 3, 2009

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2012

Completed
6.6 years until next milestone

Results Posted

Study results publicly available

January 10, 2019

Completed
Last Updated

January 16, 2019

Status Verified

January 1, 2019

Enrollment Period

3 years

First QC Date

June 23, 2009

Results QC Date

March 28, 2017

Last Update Submit

January 14, 2019

Conditions

Keywords

FibromyalgiaTranscutaneous Electrical Nerve Stimulation (TENS)

Outcome Measures

Primary Outcomes (2)

  • Pain at Rest Difference Score Pre-intervention and Post Intervention

    Visual Analog Scale 0-10 with 0 No Pain and 10 Worst Pain Imaginable Pain was measured at rest before and after intervention.

    3 weeks

  • Pain With Movement Difference Score Pre-intervention and Post Intervention

    Visual Analog Scale 0-10 with 0 No Pain and 10 Worst Pain Imaginable Pain was measured at rest before and after intervention.

    3 weeks

Secondary Outcomes (6)

  • Fatigue at Rest Difference Score Pre-intervention and Post Intervention

    3 weeks

  • Fatigue With Movement Difference Score Pre-intervention and Post Intervention

    3 weeks

  • PPT Cervical Region

    3 weeks

  • PPT Lumbar Region

    3 weeks

  • PPT for Anterior Tibialis

    3 weeks

  • +1 more secondary outcomes

Study Arms (6)

Active TENS Placebo TENS No TENS

EXPERIMENTAL

Active TENS: 100 Hz, 200 μs at maximal tolerable intensity Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off No TENS: Participants wore a TENS unit that was turned off for blinding of the outcome assessor

Device: TENS

Placebo TENS Active TENS No TENS

EXPERIMENTAL

Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off Active TENS: 100 Hz, 200 μs at maximal tolerable intensity Participants wore a TENS unit that was turned off for blinding of the outcome assessor

Device: TENS

No TENS Active TENS Placebo TENS

EXPERIMENTAL

No TENS: Participants wore a TENS unit that was turned off for blinding of the outcome assessor Active TENS: 100 Hz, 200 μs at maximal tolerable intensity Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off

Device: TENS

Active TENS No TENS Placebo TENS

EXPERIMENTAL

Active TENS: 100 Hz, 200 μs at maximal tolerable intensity No TENS: Participants wore a TENS unit that was turned off for blinding of the outcome assessor Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off

Device: TENS

Placebo TENS No TENS Active TENS

EXPERIMENTAL

Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off Participants wore a TENS unit that was turned off for blinding of the outcome assessor Active TENS: 100 Hz, 200 μs at maximal tolerable intensity

Device: TENS

No TENS Placebo TENS Active TENS

EXPERIMENTAL

No TENS: Participants wore a TENS unit that was turned off for blinding of the outcome assessor Placebo TENS: 100 Hz, 200 μs on for 45 seconds and then ramped off Active TENS: 100 Hz, 200 μs at maximal tolerable intensity

Device: TENS

Interventions

TENSDEVICE

Active TENS, Placebo TENS and No Treatment TENS

Also known as: Rehabilicare Maxima
Active TENS No TENS Placebo TENSActive TENS Placebo TENS No TENSNo TENS Active TENS Placebo TENSNo TENS Placebo TENS Active TENSPlacebo TENS Active TENS No TENSPlacebo TENS No TENS Active TENS

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Fibromyalgia diagnosis by a physician
  • History of cervical or lumbar pain

You may not qualify if:

  • TENS use in the last 5 years
  • Pacemaker
  • No use of opioids

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Iowa - Physical Therapy and Rehabilitation Science

Iowa City, Iowa, 52242, United States

Location

Related Publications (1)

  • Dailey DL, Rakel BA, Vance CGT, Liebano RE, Amrit AS, Bush HM, Lee KS, Lee JE, Sluka KA. Transcutaneous electrical nerve stimulation reduces pain, fatigue and hyperalgesia while restoring central inhibition in primary fibromyalgia. Pain. 2013 Nov;154(11):2554-2562. doi: 10.1016/j.pain.2013.07.043. Epub 2013 Jul 27.

Related Links

MeSH Terms

Conditions

Fibromyalgia

Interventions

Transcutaneous Electric Nerve Stimulation

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesRheumatic DiseasesNeuromuscular DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsPhysical Therapy ModalitiesRehabilitationAnalgesiaAnesthesia and Analgesia

Limitations and Caveats

43 subjects were enrolled to the study and completed a treatment (Active TENS, Placebo TENS or No TENS) in a randomized order with a one week washout period between treatments. Results were analyzed by comparing the groups for outcome measures.

Results Point of Contact

Title
Dana Dailey
Organization
University of Iowa

Study Officials

  • Dana L Dailey, PT,PhD

    University of Iowa

    PRINCIPAL INVESTIGATOR
  • Kathleen A Sluka, PhD

    University of Iowa

    STUDY CHAIR
  • Barbara Rakel, PhD

    University of Iowa

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Research Associate

Study Record Dates

First Submitted

June 23, 2009

First Posted

July 3, 2009

Study Start

June 1, 2009

Primary Completion

June 1, 2012

Study Completion

June 1, 2012

Last Updated

January 16, 2019

Results First Posted

January 10, 2019

Record last verified: 2019-01

Data Sharing

IPD Sharing
Will not share

See Publication listed for data

Locations