Clinical trial Recruiting at 1 site Observational Ages 18 and up Women only

Understanding early pregnancy loss through genetic analysis

Official title: Study of Product of Conception Derived From Ultrasound-guided Manual Vacuum Aspiration

Run by Chinese University of Hong Kong · NCT05825183 · Data updated 2026-11-12

This study is trying to find out if genetic and immune factors play a role in early pregnancy loss by analyzing tissue from miscarriages to see if there are any hidden genetic issues.

Quick facts

Study typeObservational
Ages18 Years and up
SexWomen only
Enrollment100 (estimated)
SponsorChinese University of Hong Kong
Academic / other
Locations1 site (Hong Kong)
StatusRecruiting
StartedMay 30, 2023
Main results expectedMay 31, 2028
Study endsOctober 31, 2028
Registry record updatedMarch 20, 2025
Trial IDNCT05825183 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 18 and older who have experienced a first trimester miscarriage or termination of pregnancy and are suitable for manual vacuum aspiration.

Probably not a fit

Patients who are not feasible candidates for the MVA procedure due to conditions like cervical stenosis or uterine malformations may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to investigate the genetic and immunological factors contributing to early pregnancy loss, which affects approximately one in four women. It focuses on analyzing products of conception obtained through ultrasound-guided manual vacuum aspiration (MVA) to identify chromosomal abnormalities and other genetic factors that may not be detectable by conventional karyotyping. The study utilizes next-generation sequencing (NGS) to enhance the detection of genomic variants, including copy-number variants and low-level chromosomal mosaicisms. By improving the understanding of the genetic underpinnings of miscarriage, the study seeks to provide insights into potential causes and future interventions.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic methods for early pregnancy loss, helping to identify underlying genetic causes and guiding future reproductive decisions.

How similar studies have gone: While the approach of using next-generation sequencing for genetic analysis in early pregnancy loss is gaining traction, this specific methodology and its application in this context may be novel and less explored.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Women 18 years old or above
2. Women with miscarriage or TOP who are suitable candidates for MVA

   * first trimester miscarriage or TOP
   * No fetal heart beat or TOP in those with CRL 25mm
   * incomplete miscarriage or TOP with POG \<5cm
   * hemodynamically stable,
   * tolerates well with speculum examination

Exclusion Criteria:

1. Women who are not feasible for the MVA procedure

   * cervical stenosis
   * fibroid uterus \>12 weeks in size
   * known uterine malformation
   * bleeding disorder
   * clinically sepsis
   * inability to tolerate pelvic examination
2. History of psychological/ psychiatric problem
3. Patient refusal

Where it's running

  • Prince of Wales Hospital
    Hong Kong, Hong Kong
    Recruiting

Study contacts

  • Principal investigator: Pui Wah Jacqueline Chung — Prince of Wales Hospital, Shatin, Hong Kong
  • Study coordinator: Pui Wah Jacqueline Chung
  • Email: jacquelinechung@cuhk.edu.hk
  • Phone: 35051537

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.