NCT03064698|Unknown
Loading search results
Sponsor study identifier
observational
32
1 country
1
Study Start
September 1, 2017
Actual (reported)Primary Completion
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
In uncomplicated pregnancies, the uterine spiral arteries undergo a series of structural changes that result in a low resistance in the uterine arteries as pregnancy progresses. In many pregnancies complicated with preeclampsia, growth restriction and other placental related complication, the described change does not occur. In pregnancies at high risk for placental complications, doppler measurement of Uterine artery flow has been shown to be a reliable predictor of complications. Postpartum there is a reversal of vascular changes seen in normal pregnancies. It is unclear if there is a full reversal of these changes in complicated pregnancies with abnormal flow during pregnancy. The investigators hypothesize that Doppler uterine artery measurements after complicated pregnancies will show some abnormality compared to doppler measurements following uncomplicated pregnancies.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
February 13, 2017
Actual (reported)February 27, 2017
Actual (reported)September 1, 2017
Actual (reported)September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Change in uterine artery flow
Uterine artery flow measurements during pregnancy and after, as measured by Doppler ultrasound
2nd trimester (between 13 to 22 weeks gestation) and 6 weeks post-partum
This group consists of women who had normal doppler ultrasound results at second trimester
This group consists of women who had abnormal doppler ultrasound results at second trimester
Participants will undergo one uterine artery Doppler ultrasound at 6 weeks post-partum.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Women with singleton pregnancies.
St. Michael's Hospital
Toronto, Ontario, M5B 1W8, Canada
Howard Berger, MD
Unity Health Toronto
First Submitted
February 13, 2017
First Posted
February 27, 2017
Study Start
September 1, 2017
Actual (reported)Primary Completion
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Contact the study team to confirm eligibility.
Study Completion
September 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
October 20, 2020
Record last verified: 2020-10
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.
Source retrieved: