Angular Pregnancy - Ultrasound Definition and Correlation With Clinical Outcomes
Are Early Pregnancies Implanted Close to the Tubal Ostia at Increased Risk of Miscarriage? A Prospective Observational Study
1 other identifier
observational
236
1 country
1
Brief Summary
The aim of this study is to establish clinically meaningful ultrasound-based diagnostic criteria for AP. To this end, the investigators will prospectively collect clinical and ultrasound data from early intrauterine pregnancies and correlate this data with pregnancy outcomes (particularly with risk of miscarriage), to establish whether there are any diagnostic criteria that can be used to make the diagnosis, facilitate increased surveillance of at risk pregnancies and reassure those with normally located pregnancies. The collected data will be used to correlate incidence of angular pregnancy and clinical variables such as maternal age, uterine fibroids, assisted conception, multiple pregnancy, ethnicity, previous uterine and adnexal surgery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2017
1 active site
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
Study Start
First participant enrolled
October 1, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2019
CompletedFirst Submitted
Initial submission to the registry
April 25, 2023
CompletedFirst Posted
Study publicly available on registry
February 16, 2024
CompletedFebruary 16, 2024
February 1, 2024
2 years
April 25, 2023
February 6, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Primary
To define "angular pregnancy" using ultrasound based criteria.
2 years
Secondary Outcomes (2)
Secondary
2 years
Secondary
2 years
Interventions
Ultrasound based observational study
Eligibility Criteria
Pregnant women who are attending for a scan in the early pregnancy unit, aged over 16 years.
You may qualify if:
- Have capacity to understand the study and to provide signed and dated informed consent.
- Willing to comply with all study procedures and be available for the duration of the study including consenting to follow up of the pregnancy outcome by letter, phone or email according to individual preference.
- Age 16 years or over
- Mean gestational sac diameter (GSD) on ultrasound of 2-15mm inclusive
- GS implantation site within the upper half of the uterine cavity on 2D USS
You may not qualify if:
- Implantation site within the lower half of the endometrial cavity on 2D USS screening.
- Intention to terminate the pregnancy
- Women with unicornuate uteri or unicornuate uteri with rudimentary horns
- Women with uterine fibroids which distort the uterine cavity
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
King's College Hospital
London, SE5 9RS, United Kingdom
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 25, 2023
First Posted
February 16, 2024
Study Start
October 1, 2017
Primary Completion
October 1, 2019
Study Completion
October 1, 2019
Last Updated
February 16, 2024
Record last verified: 2024-02
Data Sharing
- IPD Sharing
- Will not share
Data is available for reasonable requests including study protocol and anonymised data.