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Sonographic characteristics of retained products of conception (RPOC) after medication abortion in the 1st trimester and their predictive value

Sonographic characteristics of retained products of conception (RPOC) after medication abortion in the 1st trimester and their predictive value

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00040836
Enrollment
70
Registered
2026-07-10
Start date
2026-09-01
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

O04

Interventions

Group 1: No sonographic evidence of RPOC (homogeneous, three-layered endometrium) 3 weeks after mifepristone administration
follow-up phone call after 12 weeks. Group 2: Sonographic suspicion of RPOC 3 weeks after mifepristone administration
further sonographic follow-up after the first menstrual period or after 6 weeks at the latest
depending on the course of events surgery or follow-up phone call after 12 weeks.

Sponsors

Kepler Universitätsklinikum
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: o Abortion with 600 mg of mifepristone and 800 µg of misoprostol for an intrauterine pregnancy confirmed by transvaginal ultrasound, with a maximum CRL of 20 mm o Follow-up appointment scheduled for 3 weeks later (18–25 days after mifepristone) o Of legal age (=18 years) o Sufficient knowledge of German

Exclusion criteria

Exclusion criteria: o Multiple pregnancy o Known uterine malformation o Early intervention (medical or surgical) between mifepristone administration and the 3-week follow-up o Persistent intrauterine gestational sac 3 weeks after mifepristone o Presence of an intrauterine foreign body

Design outcomes

Primary

MeasureTime frame
The primary aim of the study is to identify differences in the sonographic morphology of RPOC following medical abortion with mifepristone/misoprostol between patients with and without RPOC later confirmed histologically. The aim is to determine whether ultrasound features can reliably predict the presence of persistent RPOC and serve as potential indicators for early surgical intervention.

Secondary

MeasureTime frame
• To determine the prevalence of sonographic findings suggestive of RPOC following medical termination of pregnancy. • To evaluate whether serum hCG levels 3 weeks after administration of Mifegyne or at subsequent follow-up visits correlate with symptom severity, the sonomorphological appearance of RPOC, or the need for surgical intervention.

Countries

Austria

Contacts

Public ContactSimon-Hermann Enzelsberger

Kepler Universitätsklinikum

simon-hermann.enzelsberger@kepleruniklinikum.at+435768084

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026