Neonatal Cord Blood Screening for HDN

November 8, 2022 updated by: Shimaaa Abd El-Aleem, Assiut University

Neonatal Alloantibodies in Cord Blood for Early Detection of Hemolytic Disease of Newborn

To evaluate the diagnostic efficiency of antibodies screening in cord blood for detection of HDN.

To help finding the antigen negative blood in a timely manner and reduce the morbidities and mortalities of HDN

Study Overview

Status

Not yet recruiting

Conditions

Detailed Description

Hemolytic disease of the newborn (HDN) refers to fetal or neonatal alloimmune hemolysis caused by red blood cell antibodies due to incompatible maternal and fetal or neonatal blood types. A French midwife first described the disorder in 1609; however, it was not until the 1950s when the underlying cause was clarified. The pathogenesis of HDN begins with the attack of fetal red blood cells (RBCs) by maternal antibodies due to incompatibility of maternal and fetal blood. Immunologically, antibody secretion initially starts with Immunoglobulin M (IgM), which cannot cross the placental barrier, but is then followed by isotype switching, which produces Immunoglobulin G (IgG) antibodies. IgG antibodies can cross the placental barrier, and they do so during the second and or subsequent pregnancies, attacking the fetal RBCs and causing hemolysis and associated complications such as Hydrops fetalis and jaundice. HDN can occur due to Rh antigens, most commonly the D antigen, and A,B and O RBCs antigens (ABO) antigens. Rh(D)-HDN has decreased since the introduction of antenatal and postpartum Rh immunoglobulin. Therefore, the prevalence of HDN, nowadays, varies according to blood type incompatibility. ABO incompatibility is the most common cause of HDN and Rh (D) antigen is the second most common cause.[8] Rh (C, c, E, e) antigen incompatibility occurs occasionally. Several other alloantibodies have also been reported to be associated with hemolytic diseases, including Kidd, Diego, Duffy, Kell and Anti-Mur. Minor blood group incompatibility due to blood groups other than Rh(D), although an uncommon cause of neonatal hyperbilirubinemia, has the potential to cause severe hyperbilirubinemia and its sequelae in infants, if left undiagnosed and untreated. Therefore, identification of at-risk cases will help clinicians to reduce neonatal morbidity and will result in better patient management

Study Type

Observational

Enrollment (Anticipated)

400

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 day to 3 days (Child)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Full term neonates who have ABO blood group compatibility with their mothers.

Description

Inclusion Criteria:

  • Full term neonates >/= 37 weeks.
  • ABO blood compatible mother and neonate

Exclusion Criteria:

  • Preterm neonates < 37 weeks.
  • ABO incompatibility between mother and neonate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
evaluate the diagnostic efficiency of antibodies screening in cord blood for detection of HDN
Time Frame: Baseline
Early detection of HDN through antibodies screening would help finding the antigen negative blood in a timely manner and reduce the morbidities and mortalities
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assiut University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

December 1, 2022

Primary Completion (Anticipated)

December 1, 2023

Study Completion (Anticipated)

January 1, 2024

Study Registration Dates

First Submitted

November 8, 2022

First Submitted That Met QC Criteria

November 8, 2022

First Posted (Actual)

November 15, 2022

Study Record Updates

Last Update Posted (Actual)

November 15, 2022

Last Update Submitted That Met QC Criteria

November 8, 2022

Last Verified

November 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HDN screening

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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