NCT04168489

Brief Summary

Based on the pain threshold and visual simulation score, primary dysmenorrhea patients will be divided into treatment effective group or non-effective group.According to the functional magnetic resonance imaging, the investigators investigate whether there is characteristic or secondary brain features before and after rTMS intervention.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

October 25, 2019

Completed
25 days until next milestone

First Posted

Study publicly available on registry

November 19, 2019

Completed
2.7 years until next milestone

Study Start

First participant enrolled

July 20, 2022

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2023

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 30, 2024

Completed
Last Updated

March 13, 2023

Status Verified

March 1, 2023

Enrollment Period

1.4 years

First QC Date

October 25, 2019

Last Update Submit

March 9, 2023

Conditions

Keywords

rTMSPrimary Dysmenorrhea

Outcome Measures

Primary Outcomes (1)

  • Evaluation of effect of rTMS for primary dysmenorrhea

    Assessments using Visual Analog Score for pain(Units on a Scale) in primary dysmenorrhea during menstrual phase to evaluate the effect of rTMS

    From 1 month before treatment to 3 months after treatment for each volunteers(through study completion, an average of 2 years)

Study Arms (2)

active rTMS

ACTIVE COMPARATOR
Device: active rTMS

sham rTMS

SHAM COMPARATOR
Device: sham rTMS

Interventions

(rTMS) is received preliminary approval because of its noninvasive and safe analgesic effect.

active rTMS
sham rTMSDEVICE

The sham rTMS is inactive and similar to placebo effect.

sham rTMS

Eligibility Criteria

Age18 Years - 30 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • consistent with the diagnostic criteria for primary dysmenorrhea according to the American College of Obstetricians and Gynecologists;
  • regular menstrual cycles (27-32 days);
  • the average intensity of dysmenorrhoeic pain in the past 6 months should be rated ≥4 on a visual analogue scale (VAS) (0 = no pain, 10 = the worst imaginable pain).

You may not qualify if:

  • organic pelvic disease;
  • using oral contraceptives, hormonal supplements, Chinese traditional medicine or any central-acting medication (e.g., opioids, anti-epileptics) within 6 months before the study;
  • comorbid chronic pain states;
  • alcohol, nicotine or drug addiction;
  • neurologic disease or psychiatric disorder;
  • history of childbirth;
  • a positive pregnancy test or immediate plans for pregnancy;
  • any MRI contraindications. In addition, no analgesics were consumed 24 hours prior to the experiment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Affiliated Hospital of Xi 'an Jiaotong University

Xi'an, Shaanxi, 710061, China

RECRUITING

Study Officials

  • wanghuan Dun, M.D.

    First Affiliated Hospital Xi'an Jiaotong University

    STUDY CHAIR

Central Study Contacts

wanghuan Dun, M.D.

CONTACT

ke wang, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: (a) consistent with the diagnostic criteria for primary dysmenorrhea according to the American College of Obstetricians and Gynecologists; (b) regular menstrual cycles (27-32 days); and (c) the average intensity of dysmenorrhoeic pain in the past 6 months should be rated ≥4 on a visual analogue scale (VAS) (0 = no pain, 10 = the worst imaginable pain).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 25, 2019

First Posted

November 19, 2019

Study Start

July 20, 2022

Primary Completion

December 30, 2023

Study Completion

July 30, 2024

Last Updated

March 13, 2023

Record last verified: 2023-03

Locations