NCT06262373

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
236

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2017

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2019

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

April 25, 2023

Completed
10 months until next milestone

First Posted

Study publicly available on registry

February 16, 2024

Completed
Last Updated

February 16, 2024

Status Verified

February 1, 2024

Enrollment Period

2 years

First QC Date

April 25, 2023

Last Update Submit

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

UltrasoundDIAGNOSTIC_TEST

Ultrasound based observational study

Eligibility Criteria

Age16 Years - 50 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

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

Location

MeSH Terms

Interventions

Ultrasonography

Intervention Hierarchy (Ancestors)

Diagnostic ImagingDiagnostic Techniques and ProceduresDiagnosis

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.

Locations