NCT07533487

Brief Summary

The goal of this clinical trial is to investigate the effect of adding transcutaneous electrical nerve stimulation to cognitive behavior therapy on fibromyalgia in postmenopausal women. The study aims to answer whether there would be an effect of adding TENS to cognitive behavior therapy (CBT) and medicines on pain, symptoms, HRV, and QOL in postmenopausal women with fibromyalgia The primary hypothesis is that there would be no effect of adding TENS to CBT and medicines on pain, symptoms, Heart rate variability (HRV), and quality of life (QOL) in postmenopausal women with fibromyalgia. Sixty postmenopausal women with mild to moderate fibromyalgia were allocated to 3 groups: Group A received medical treatment, Group B received medical treatment and CBT, and Group C received the same as B and low TENS. Pain was assessed using the widespread pain index (WPI) and pain pressure threshold (PPT). Fibromyalgia symptoms were evaluated using the symptoms severity index (SSI). Heart rate variability (HRV) and quality of life were assessed using the Fibromyalgia Impact Questionnaire (FIQ).

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 2022

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2022

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2025

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

April 10, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 16, 2026

Completed
Last Updated

April 16, 2026

Status Verified

April 1, 2026

Enrollment Period

2.4 years

First QC Date

April 10, 2026

Last Update Submit

April 10, 2026

Conditions

Keywords

FibromyalgiaCognitive behavioral therapyTENSpainheart rate variabilityquality of life

Outcome Measures

Primary Outcomes (1)

  • Assessment of the pain distribution

    The Widespread Pain Index (WPI) is a self-report index measure that was used to assess bodily distribution of pain and to specifically quantify the degree of widespread body pain and assess for pain features (e.g., cognitive, emotional, and physical symptoms). The WPI assesses the presence of pain in 19 designated body locations over the past 7 days, such as the neck, right upper arm, left lower leg. Each location is equal to a score of 1.

    12 weeks

Secondary Outcomes (4)

  • Symptom Severity Scale (SSI)

    Baseline and after 12 weeks

  • Assessment of pain threshold

    Baseline and after 12 weeks

  • Assessment of heart rate variability (HRV)

    Baseline and after 12 weeks

  • Assessment of fibromyalgia symptoms

    Baseline and after 12 weeks

Study Arms (3)

Group (A)

ACTIVE COMPARATOR

Group (A) received medical treatment in the form of pain relievers such as acetaminophen and antidepressants such as Duloxetine (Cymbalta) and milnacipran.

Drug: medical treatment

Group (B)

ACTIVE COMPARATOR

Group (B) received the same medical treatment, in addition to CBT, for two sessions per week for 12 weeks.

Behavioral: Cognitive behavior therapyDrug: medical treatment

Group (C)

EXPERIMENTAL

Group (C) received the same treatment as group (B) and low TENS three times per week for 12 weeks.

Device: TENSBehavioral: Cognitive behavior therapyDrug: medical treatment

Interventions

TENSDEVICE

Name: Transcutaneous Electrical Nerve Stimulation (TENS). Type: device

Also known as: Transcutaneous Electrical Nerve Stimulation
Group (C)

Type: Behavioral Name: Cognitive Behavioral Therapy (CBT)

Also known as: CBT
Group (B)Group (C)

Type: Drug Name: Medical treatment (acetaminophen, duloxetine)

Also known as: (acetaminophen, duloxetine)
Group (A)Group (B)Group (C)

Eligibility Criteria

Age50 Years - 60 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • female patients aged 50-60 years old; (2) their body mass index (BMI) between 25 to 29.9 kg/m2; (3) patients meeting the 2016 American College of Rheumatology diagnostic criteria for fibromyalgia syndrome including a widespread pain index (WPI) score of 7 or more, a symptom severity (SS) score of 5 or more, or a WPI score of 4 to 6 and an SS score of 9 or more. Symptoms were present at a similar level for a minimum of 3 months. No other condition accounts for the patient's pain

You may not qualify if:

  • Patients were not eligible to participate if they had other rheumatologic, musculoskeletal, or neurological disorders or any diseases that cause cognitive abnormality or had any contraindications to TENS.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Physical therapy outpatient clinics and Rheumatology clinic at Al Kasr Al Ainy Hospital

Cairo, Non US Or Canada, Egypt

Location

MeSH Terms

Conditions

FibromyalgiaPain

Interventions

Transcutaneous Electric Nerve StimulationCognitive Behavioral TherapyAcetaminophenDuloxetine Hydrochloride

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesRheumatic DiseasesNeuromuscular DiseasesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsPhysical Therapy ModalitiesRehabilitationAnalgesiaAnesthesia and AnalgesiaBehavior TherapyPsychotherapyBehavioral Disciplines and ActivitiesAcetanilidesAnilidesAmidesOrganic ChemicalsAniline CompoundsAminesThiophenesSulfur CompoundsHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Enas Abd Elazim, Dr.

    Cairo University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: It is a three-armed, single-blind, parallel group randomized controlled trial. All patients who met the study's inclusion criteria were randomly allocated using a computerized randomization procedure to one of three groups with a 1:1:1 ratio.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
lecturer

Study Record Dates

First Submitted

April 10, 2026

First Posted

April 16, 2026

Study Start

September 1, 2022

Primary Completion

January 30, 2025

Study Completion

January 30, 2025

Last Updated

April 16, 2026

Record last verified: 2026-04

Locations