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Photobiomodulation on Pain Perception During the Insertion of the T 380 Copper Intrauterine Device (IUD)

NCT06984796 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 72

Last updated 2026-02-04

No results posted yet for this study

Summary

Unplanned pregnancy affects up to 65% of women in some regions of Brazil, contributing to unsafe abortions and maternal mortality. The copper IUD is an effective long-term contraceptive but is underused, with only 4.4% of women of reproductive age using it. One barrier is the pain during insertion, leading to low adherence. Photobiomodulation (PBM), which has anti-inflammatory and analgesic effects, may offer a solution. This study aims to assess PBM's efficacy as a preemptive analgesic during copper IUD insertion in a randomized, double-blind trial involving 72 participants. The experimental group (n=36) will receive active PBM, while the control group (n=36) will receive PBM simulation. Pain will be measured using the Visual Analog Scale (VAS) at multiple time points, and additional outcomes include analgesic use, quality of life (WHOQOL-100), anxiety (GAD-7), satisfaction, and adverse effects. Statistical analysis will include tests such as the Friedman test, logistic regression, and ANOVA, with a significance level of 5%.

Conditions

Interventions

DEVICE

Photobiomodulation

The irradiated region will cover the lumbar and thoracic spine, specifically from T10 to L4, using the Light Emitting Diode panel in a vertical orientation. Photobiomodulation in the experimental group will be administered using 132 Light Emitting Diodes with wavelengths of 660 nm and 850 nm, applied in contact mode. Each Light Emitting Diode has an emission area of 0.5 cm², with an application time of 20 minutes, an irradiance of 16 mW/cm², and an energy delivery of 4.8 J per Light Emitting Diode, resulting in a radiant exposure of 9.6 J/cm².

OTHER

Simulation of Photobiomodulation

The researcher responsible for the photobiomodulation application will simulate irradiation by positioning the device in the exact location as in the Photobiomodulation Group; however, the equipment will remain turned off. To prevent participants from identifying the group to which they belong, the device's activation sound (beep) will be pre-recorded and played during the application.

Sponsors & Collaborators

  • University of Nove de Julho

    lead OTHER

Principal Investigators

  • Anna Carolina Nunes Ferraz · University of Nove de Julho

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-03-30
Primary Completion
2027-05-30
Completion
2027-05-30

Countries

  • Brazil

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06984796 on ClinicalTrials.gov