NCT05975112

Brief Summary

This study aims to find out if there are common major changes in coagulation immediately after delivery of the newborn during Cesarean (C) -section and vaginal birth.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
780

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2023

Geographic Reach
1 country

1 active site

Status
recruiting

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

June 1, 2023

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 26, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 3, 2023

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2024

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 17, 2025

Completed
Last Updated

March 21, 2024

Status Verified

March 1, 2024

Enrollment Period

1.5 years

First QC Date

July 26, 2023

Last Update Submit

March 20, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Incidence of Hyperfibrinolysis

    Ly30-Index is used as marker for Hyperfibrinolysis

    immediate after birth

  • D-dimer

    D-dimer level

    immediate after birth

Study Arms (2)

cesarean section

maternal blood is drawn immediately after the baby's cord is cut and analyzed using thrombelastography with the addition of tranexamic acid. In addition, the following parameters are examined: * Levels of Factor 1 (Fibrinogen) and Factor 2 (Thrombin) * Level of hs-D-Dimer SpHb is measured before discharge from the delivery room in order to estimate blood loss and to be able to make a comparison with the level of Hb measured in the laboratory as part of clinical routine.

Diagnostic Test: Coagulation tests (TEG, Levels of F1, F2, hs-D-dimer, Plasminogen, PAI 1+2), SpHb before discharge

vaginal delivery

maternal blood is drawn immediately after the baby's cord is cut and analyzed using thrombelastography with the addition of tranexamic acid. In addition, the following parameters are examined: * Levels of Factor 1 (Fibrinogen) and Factor 2 (Thrombin) * Level of hs-D-Dimer SpHb is measured before discharge from the delivery room in order to estimate blood loss and to be able to make a comparison with the level of Hb measured in the laboratory as part of clinical routine.

Diagnostic Test: Coagulation tests (TEG, Levels of F1, F2, hs-D-dimer, Plasminogen, PAI 1+2), SpHb before discharge

Interventions

Coagulation tests named earlier as well as SpHb

cesarean sectionvaginal delivery

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

780 women after giving birth to a child, 390 in each group

You may qualify if:

  • Women aged 18 years and older with a singleton or multiple pregnancy who volunteer for the present study and give one blood sample of 6ml

You may not qualify if:

  • Age \< 18 years
  • Emergency cesarean section
  • History of thrombocytopathy or coagulation disorders
  • Therapy with drugs that influence thrombocyte function and coagulation (ASS less than 5 days ago, clopidogrel, prasugrel, ticagrelor or similar)
  • Lack of consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of Graz

Graz, Styria, 8010, Austria

RECRUITING

Related Publications (1)

  • Zoidl P, Honnef G, Eichinger M, Eichlseder M, Heuschneider L, Hammer S, Schreiber N, Pruller F, Weiss EC, Amtmann B, Bornemann-Cimenti H. Hyperfibrinolysis During Caesarean Section and Vaginal Delivery: A Prospective Cross-Sectional Study in the Delivery Room. J Clin Med. 2025 Dec 20;15(1):27. doi: 10.3390/jcm15010027.

Biospecimen

Retention: SAMPLES WITH DNA

one blood sample of 6ml

MeSH Terms

Conditions

Hemostatic DisordersHemorrhage

Interventions

Thrombelastography

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesHemorrhagic DisordersHematologic DiseasesHemic and Lymphatic DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Blood Coagulation TestsHematologic TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisInvestigative Techniques

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 26, 2023

First Posted

August 3, 2023

Study Start

June 1, 2023

Primary Completion

November 30, 2024

Study Completion

April 17, 2025

Last Updated

March 21, 2024

Record last verified: 2024-03

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