NCT07817628

Brief Summary

This assessor-blinded, two-arm randomized controlled trial evaluates the additional effects of pain neuroscience education (PNE) when combined with a standardized exercise program in women with primary dysmenorrhea. Sixty-two participants are randomly allocated in a 1:1 ratio to either PNE plus exercise or time-matched routine menstrual-health education plus the same exercise program. Both groups complete a six-week exercise program performed three times weekly, while education is delivered once weekly for six weeks. Outcomes are assessed at baseline, during the first menstrual cycle after the intervention, and approximately three months after intervention completion. The primary outcome is menstrual pain intensity during the first 48 hours of menstruation. Secondary outcomes include activity interference, analgesic use, pain catastrophizing, pressure pain thresholds, conditioned pain modulation, and dynamic pelvic floor ultrasound measures.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
62

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2025

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

July 11, 2025

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 25, 2026

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 5, 2026

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 1, 2026

Completed
13 days until next milestone

First Posted

Study publicly available on registry

September 14, 2026

Completed
Last Updated

September 16, 2026

Status Verified

September 1, 2026

Enrollment Period

12 months

First QC Date

September 1, 2026

Last Update Submit

September 13, 2026

Conditions

Keywords

Primary dysmenorrheaPain neuroscience educationExerciseMenstrual painPain catastrophizingPelvic floor ultrasound

Outcome Measures

Primary Outcomes (1)

  • Change in Mean Menstrual Pain Intensity During the First 48 Hours of Menstruation

    Menstrual pain intensity is recorded using an 11-point Numerical Rating Scale (NRS), ranging from 0 (no pain) to 10 (worst imaginable pain), three times daily (morning, afternoon, and evening) during menstrual days 1 and 2. The mean of the six ratings is calculated when at least four valid ratings are available. The primary treatment effect compares change from baseline to the first menstrual cycle following completion of the six-week intervention.

    Baseline and the first menstrual cycle following completion of the 6-week intervention (T1)

Secondary Outcomes (9)

  • Activity Interference Due to Menstrual Pain

    Baseline, first menstrual cycle following the 6-week intervention (T1), and menstrual cycle closest to 3 months post-intervention

  • Duration of Menstrual Pain

    Baseline, first menstrual cycle following completion of the 6-week intervention, and menstrual cycle closest to 3 months post-intervention

  • Analgesic Use Occasions

    Baseline, first menstrual cycle following completion of the 6-week intervention, and menstrual cycle closest to 3 months post-intervention

  • Any Analgesic Use

    Baseline, first menstrual cycle following completion of the 6-week intervention, and menstrual cycle closest to 3 months post-intervention

  • School or Work Absence Due to Menstrual Pain

    Baseline, first menstrual cycle following completion of the 6-week intervention, and menstrual cycle closest to 3 months post-intervention

  • +4 more secondary outcomes

Study Arms (2)

Pain Neuroscience Education + Exercise

EXPERIMENTAL

Participants receive pain neuroscience education in addition to the standardized exercise program.

Behavioral: Pain Neuroscience EducationBehavioral: Standardized Exercise Program

Routine Menstrual Health Education + Exercise

ACTIVE COMPARATOR

Participants receive routine menstrual health education in addition to the same standardized exercise program.

Behavioral: Standardized Exercise ProgramBehavioral: Routine Menstrual Health Education

Interventions

Six weekly 35-45-minute structured educational sessions addressing the protective function of pain, uterine nociception, peripheral and central sensitization, pain modulation, neuroplasticity, attention, expectations, stress, sleep, contextual influences, safe movement, and self-management.

Pain Neuroscience Education + Exercise

A six-week program performed three times weekly for 18 planned sessions, including aerobic activity, lumbopelvic mobility, trunk and hip strengthening, stretching, diaphragmatic breathing, and relaxation/down-training strategies.

Pain Neuroscience Education + ExerciseRoutine Menstrual Health Education + Exercise

Participants received six weekly 35-45-minute time-matched educational sessions providing routine information about menstruation, menstrual health, lifestyle, and general self-management, without pain neuroscience education content.

Routine Menstrual Health Education + Exercise

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Women aged 18-35 years
  • Menstrual cycles of 21-35 days
  • Symptoms consistent with primary dysmenorrhea for at least 6 months
  • At least 2 years since menarche
  • Recurrent menstrual pain during at least 2 menstrual cycles
  • Menstrual pain intensity of at least 4/10 on the Numerical Rating Scale during menstruation
  • Willingness to participate
  • Provision of written informed consent

You may not qualify if:

  • Endometriosis, adenomyosis, pelvic inflammatory disease, uterine fibroids, or another gynecological pathology capable of explaining menstrual pain
  • Use of hormonal contraceptives or other hormonal treatment
  • Regular analgesic or antidepressant use
  • Severe orthopedic, neurological, gynecological, chronic, or systemic disease
  • Any health condition preventing participation in the exercise program
  • Previous structured pain neuroscience education
  • Pregnancy or lactation
  • Menstrual irregularity outside the predefined cycle criteria
  • Failure to meet the predefined menstrual pain-severity criterion

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Harran University Faculty of Medicine Training and Research Hospital

Sanliurfa, Şanlıurfa, 63000, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Motor ActivityDysmenorrhea

Condition Hierarchy (Ancestors)

BehaviorMenstruation DisturbancesPathologic ProcessesPathological Conditions, Signs and SymptomsPelvic PainPainNeurologic ManifestationsSigns and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants are randomly allocated in a 1:1 ratio to PNE plus exercise or time-matched routine menstrual-health education plus the same exercise program.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

September 1, 2026

First Posted

September 14, 2026

Study Start

July 11, 2025

Primary Completion

June 25, 2026

Study Completion

July 5, 2026

Last Updated

September 16, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

Individual participant data are not planned to be publicly shared.

Locations