Multichannel EMG Diagnosing True Preterm Labor

NCT ID: NCT03785795

Last Updated: 2020-02-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

23 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-11-25

Study Completion Date

2020-01-10

Brief Summary

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We have designed new electromyography sensors for measuring uterine activity. These sensors are directional - they preferentially report uterine muscle contractions at specific locations, called regions. By measuring the synchronization of the regions of the uterus during contractions we intend to non-invasively determine if any patient is in-labor or not-in-labor. Accurately diagnosing true preterm labor allows timely intervention to avoid preterm birth; Accurately diagnosing false preterm labor avoids needlessly treating patients who would not benefit.

Detailed Description

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The legacy device for assessing uterine contractions is the tocodynamometer (Toco). The Toco is plunger-driven device that measures the uterine shape change that occurs with a contraction. Toco only reports the timing of contractions, not the contraction strength, and cannot distinguish between false and true labor.

Our overarching goal is to validate our method of determining if a patient experiencing contractions is in true labor or false labor. We will accomplish this by applying new knowledge to an old technology - uterine EMG.

This trial is based on our advanced understanding of how the uterus generates coordinated contractions without a pacemaker or dedicated electrical conduction pathways - mechanotransduction and intrauterine pressure - but also uses bioelectrical signaling for local tissue recruitment.

The uterus emits bioelectrical signals with each contraction that can be detected by electromyography (EMG). To observe uterine bioelectrical signals, we created a novel EMG sensor, we call the "area sensor". This sensor is directional - capable of preferentially reporting muscle contractions from immediately below the sensor location.

In this clinical trial we use multiple area sensors placed on the maternal abdomen to directly observe how well the regional contractions are synchronized. Our hypothesis to be tested is that highly synchronized contractions predicts true labor, unsynchronized predicts false labor.

Patients with unclear labor status, or those in early labor will be studied. We will correlate the results of the synchronization analysis against the patient's progress over the ensuing 24 hours. These data will validate the ability to identify false and true labor using multichannel EMG and area sensors.

Conditions

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Pregnancy Preterm Labor; Irregular Preterm Labor

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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Uncertain diagnosis of true labor

Patients who cannot be accurately classified as experiencing true labor or false labor based on standard clinical assessments.

Uncertain diagnosis of true labor

Intervention Type DEVICE

Multichannel EMG of uterine bioelectrical signals will be recorded using area sensors. The output of the synchronization calculations will be correlated with the time to delivery

Interventions

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Uncertain diagnosis of true labor

Multichannel EMG of uterine bioelectrical signals will be recorded using area sensors. The output of the synchronization calculations will be correlated with the time to delivery

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Pregnant
* One living fetus
* Experiencing frequent uterine contractions

Exclusion Criteria

* Cervical dilation \> 4 cm
* Ruptured membranes
* Maternal or fetal indications for immediate delivery
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Rochester

OTHER

Sponsor Role collaborator

PreTeL, Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Roger C Young, MD

Role: PRINCIPAL_INVESTIGATOR

PreTeL, Inc

Locations

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University of Rochester

Rochester, New York, United States

Site Status

Countries

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United States

References

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Young RC. Mechanotransduction mechanisms for coordinating uterine contractions in human labor. Reproduction. 2016 Aug;152(2):R51-61. doi: 10.1530/REP-16-0156. Epub 2016 May 10.

Reference Type BACKGROUND
PMID: 27165050 (View on PubMed)

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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SBIR1.01

Identifier Type: -

Identifier Source: org_study_id

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