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WithdrawnNCT00994058PSEUCIUpdated Dec 24, 2015

Pilot Study of Electronic Uterine Contraction Inhibitor

A Phase 1 interventional study of Electrical Inhibition (EI) Uterine Pacemaker in Prematurity, sponsored by Winthrop University Hospital. Withdrawn at 1 site in United States. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2015-12-24.

Sponsored by Winthrop University Hospital · Phase 1, Interventional, and Health services research

Why this study was withdrawn
The Investigator has changed institutions.
Phase
Phase 1
Study type
Interventional
Enrollment
0
Allocation
Non-randomized
Ages
18 Years to 50 Years
Sex
Female
01

Study summary

The objective is to test a novel paradigm for the inhibition of human preterm uterine contractions.

The study hypothesis is that human preterm contractions can be safely inhibited with a weak electrical current provided by an electrical inhibition/uterine pacemaker device.

Preterm birth is still a major problem. Current methods of preventing the uterine contractions of preterm are limited and associated with many side-effects affecting both the mother and baby. A reliable method of preventing preterm uterine contractions would be an important discovery. Such a method could eventually lead to a long-term goal of decreasing neonatal morbidity and mortality.

Read the detailed description

The study design is a Pilot Study to confirm the safety of the uterine inhibitor/pacemaker and measure its effect on women experiencing preterm labor.

A total of 10 (ten) patients will be enrolled in this pilot study to confirm the methodology and safety of the device. Patients who meet the inclusion criteria and none of the exclusion criteria will be recruited for the study.

The study device (EI/uterine inhibitor/pacemaker) has been classified by FDA as an Investigational Device Exemption (IDE) number G080036, Class A device. The EI/uterine inhibitor/pacemaker device is FDA cleared for research of the prevention of the prevention of the human contractions of preterm birth.

This proposal is for an initial prospective FDA approved pilot study. After FDA evaluation of the pilot study findings and approval, the pilot study may lead eventually to a prospective randomized controlled clinical study.

Only adult women who are experiencing uterine contractions due to the birthing process are eligible.

Study patients will be informed about the purpose of the EI/uterine inhibitor/pacemaker device and give informed consent prior to its use. The device will be used for only 20 minutes, preceded and followed by a 20 minute control period.

During the birthing process recordings of the uterine contractions will be recorded. Comparison will be made of these uterine contraction records pre and post use use of the EI/uterine inhibitor/pacemaker device. The uterine contraction tracings will be compared and analyzed for differences in the frequency of contractions.

The patients will also be told how to express the strength of any of their subjective pain in a manner that can be documented in a questionnaire. Study patients will also have their record of the type and amount of pain medication they have received noted on their patient log forms.

RISK:

Previous human and animal studies indicate minimal risk to either baby or mother. Human studies showed no effect on the fetal or maternal heart rate. Real-time monitoring of the fetal and maternal heart rate during the study will protect against there potential risks.

BENEFIT:

Reducing the frequency of preterm uterine contractions is a first step to preventing preterm birth,but the proposed investigation is not, itself, expected to prevent any preterm births. However, the investigation could have great benefit to future mothers and their babies.

02

Conditions studied

  • Prematurity

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Keywords

  • Preterm Labor
  • Uterine Inhibitor
  • Electro-Inhibition
03

In context

Premature Birth

2,554 studies on the registry are indexed under Premature Birth; 498 are open to participants now.

Browse Premature Birth studies →

Lead sponsor

Winthrop University Hospital is the lead sponsor of 41 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  1. 24 to 34 weeks pregnant
  2. preterm labor

    • at least one contraction every 5 minutes for 30 minutes
    • > 3 cm cervical dilation; > 80% cervical effacement
  3. Have received tocolysis therapy
  4. Anticipate a normal spontaneous vaginal delivery (NSVD)
  5. Be at least 18 years of age
  6. Have signed a written informed consent document
  7. Be willing and able to comply with study requirements

Exclusion criteria

Exclusion Criteria:

  1. Severe preeclampsia
  2. Severe abruption placenta
  3. Rupture of amnionic membranes
  4. Frank chorioamnionitis
  5. Fetal death
  6. Fetal anomaly incompatible with life
  7. Severe fetal growth restriction (estimated fetal weight \<5%)
  8. Mature fetal lung studies
  9. Maternal cardiac arrythmias
  10. A permanent cardiac pacemaker
  11. A fetal cardiac arrhythmia
05

Study design

Phase
Phase 1
Primary purpose
Health services research
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Intevention with Inhibitor

    Device: Electrical Inhibition (EI) Uterine Pacemaker

Interventions

  • DeviceElectrical Inhibition (EI) Uterine Pacemaker

    An external powered pulse generator, pacemaker for external stimulation of the uterine muscle through the vaginal canal for the therapeutic use of preventing preterm birth. Patients with preterm contractions (\< 37 weeks gestation) will be monitored for contraction frequency for 20 minutes before, 20 minutes during use of EI and 20 minutes after EI/uterine inhibitor/pacemaker. Device generates a weak electrical current (0-10mA, 0-50 Hz, 0-50mS).

06

What researchers measure

Primary outcomes

  1. Contraction frequency

    Time frame: 60 minutes

Secondary outcomes

  1. Preterm birth

    Time frame: 24 hours

07

Study locations

1 site
  • Winthrop University Hospital
    Mineola, New York 11501, United States
08

References and documents

Publications

  • Karsdon J, Garfield RE, Shi SQ, Maner W, Saade G. Electrical inhibition of preterm birth: inhibition of uterine contractility in the rabbit and pup births in the rat. Am J Obstet Gynecol. 2005 Dec;193(6):1986-93. doi: 10.1016/j.ajog.2005.05.009. Erratum In: Am J Obstet Gynecol. 2006 Feb;194(2):595. PubMed 16325601 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 24, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00994058
Lead sponsor
Winthrop University Hospital
First posted
Oct 14, 2009
Start date
Oct 2009
Primary completion
Aug 2010
Completion
Aug 2010
Last update
Dec 24, 2015

Study contacts

Graham G Ashmead, MD
principal investigator · Winthrop University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

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