NCT04442321

Brief Summary

Lateral epicondylalgia is a common musculoskeletal condition that approximately affects 1-3% of the general population. Several authors have found greater mechanical pain sensitivity in the radial nerve when compared with healthy subjects. Radial tunnel syndrome exhibits a similar clinical presentation to lateral epicondylalgia. Percutaneous electrical stimulation has shown reduce pain in several conditions. Percutaneous electrical stimulation on the radial nerve could cause an important relief in lateral epicondylalgia. Hypothesis: Percutaneous electrical stimulation on radial nerve plus exercise therapy in patients with lateral epicondylalgia is better than sham percutaneous electrical stimulation plus exercise.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2020

Longer than P75 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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 21, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 22, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2020

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2023

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2024

Completed
Last Updated

October 1, 2025

Status Verified

December 1, 2023

Enrollment Period

2.7 years

First QC Date

May 21, 2020

Last Update Submit

September 25, 2025

Conditions

Keywords

Lateral EpicondylalgiaLateral EpicondylitisLateral Elbow TendinopathyLateral Elbow PainPercutaneous Electrical Nerve Stimulation

Outcome Measures

Primary Outcomes (1)

  • Changes in Elbow Pain Intensity between baseline and follow-up periods

    Pain intensity measured with a 10 (0 - No pain - 10 The worst pain) numeric rating scale

    Baseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

Secondary Outcomes (5)

  • Changes in Elbow Related-Disability between baseline and follow-up periods

    Baseline,1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

  • Changes in Upper Extremity Related-Disability between baseline and follow-up period

    Baseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

  • Changes in Kinesiophobia between baseline and follow-up periods

    Baseline,1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

  • Changes in Pain Catastrophizing between baseline and follow-up periods

    Baseline, 1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

  • Changes in Self-perceived Improvement between baseline and follow-up periods

    Baseline,1 week post-intervention, and 1, 3, 6 and 12 months after the intervention

Study Arms (2)

PENS plus exercise group

ACTIVE COMPARATOR

Experimental: PENS plus exercise group 4-week intervention program with 1 weekly treatment session, one of percutaneous electrical stimulation. In addition, self-management loaded exercise, prescribed by the physical therapist but completed by the patient independently . It involved isometric exercises, eccentric exercise, eccentric-concentric with weight or resistive therapeutic band.

Other: PENS plus exercise

Sham PENS plus exercise group

SHAM COMPARATOR

Sham Comparator: Sham PENS plus exercise group 4-week intervention program with 1 weekly treatment session, one of percutaneous electrical stimulation. In addition, self-management loaded exercise, prescribed by the physical therapist but completed by the patient independently. It involved isometric exercises, eccentric exercise, eccentric-concentric with weight or resistive therapeutic band.

Other: Sham PENS plus exercise

Interventions

The technique will be performed ultrasound-guided on the radial nerve, the places of the needle's insertions will be the following: * Needle will be placed at under the lateral intermuscular septum between the triceps brachii and brachialis, approximately 10cm superior to the lateral epicondyle * Needle will be placed at the upper third of the forearm on the posterior interosseous nerve after passing the arcade of Froshe The percutaneous electrical stimulation will be realized with a transcutaneous electric nerve stimulation (TENS) current: * TENS Frequency 2 Hz * TENS Pulse width - 250 microseconds * Duration - 30 minutes. * TENS Intensity - Increased at an intensity of visible motor response of the innervated musculature and maximal tolerable intensity. * Administration - One per week Self-management loaded exercises prescribed by a physical therapist, two times per week.

PENS plus exercise group

The technique will be performed ultrasound-guided on the radial nerve, the places of the needle's insertions will be the following: * Needle will be placed at under the lateral intermuscular septum between the triceps brachii and brachialis, approximately 10cm superior to the lateral epicondyle * Needle will be placed at the upper third of the forearm on the posterior interosseous nerve after passing the arcade of Froshe The electrical current will not be working, and the needles will be placed during 30 minutes: \- Administration - One per week Self-management loaded exercises prescribed by a physical therapist, two times per week.

Sham PENS plus exercise group

Eligibility Criteria

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

You may qualify if:

  • Lateral epicondylalgia symptoms confirmed with at least 2 of the 4 following test:
  • pain during palpation of lateral epicondyle
  • pain on resisted wrist extension
  • pain on resisted middle finger extension
  • pain during hand-grip.

You may not qualify if:

  • History of fractures, luxations, surgery and/or musculoskeletal disorders in upper limb.
  • Neurological disorders, inflammatory and/or degenerative diseases.
  • Having received as treatment techniques that involve needles on the previous 6 months to study enrollment, or having received percutaneous electrical stimulation as a treatment before.
  • Cervical pathology, fibromyalgia, unstable cardiovascular diseases, pregnant women or under suspect of pregnancy.
  • Contraindications of needle's insertions: anticoagulant therapy, needle phobia, diabetes, hypothyroidism, lymphoedema, muscular diseases).
  • Contraindications of electrical current application.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidad Complutense de Madrid

Madrid, Madrid, 28040, Spain

Location

MeSH Terms

Conditions

Tennis Elbow

Interventions

Exercise

Condition Hierarchy (Ancestors)

Elbow TendinopathyTendinopathyMuscular DiseasesMusculoskeletal DiseasesElbow InjuriesArm InjuriesWounds and InjuriesTendon Injuries

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 21, 2020

First Posted

June 22, 2020

Study Start

September 1, 2020

Primary Completion

June 1, 2023

Study Completion

December 30, 2024

Last Updated

October 1, 2025

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations