A Study to Characterize the Clinical Course of Pregnant Women and Children at High Risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn

September 11, 2025 updated by: Janssen Research & Development, LLC

A Multicenter, Prospective Observational Study to Characterize the Clinical Course of Pregnant Women and Children at High Risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn

The primary purpose of the study is to characterize the current standard of care, clinical course, and outcomes of pregnant women and their offspring at high risk for early onset severe hemolytic disease of the fetus and newborn (EOS-HDFN).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The outcomes of interest will be assessed from the information collected on the standard of care treatment for EOS-HDFN in pregnant women and their offspring from current pregnancy.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Contacts and Locations

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

Study Locations

  • Australia
      • Liverpool, Australia, 2170
        • Liverpool Hospital
      • Parkville, Australia, 3052
        • The Royal Women's Hospital
  • Belgium
      • Leuven, Belgium, 3000
        • Universitair Ziekenhuis Leuven
  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, V6H 3N1
        • The University of British Columbia
    • Ontario
      • Toronto, Ontario, Canada, M5G1X5
        • Mount Sinai Hospital
    • Quebec
      • Montreal, Quebec, Canada, H3T 1C5
        • Centre Hospitalier Sainte Justine
  • Germany
      • Giessen, Germany, 35392
        • Justus-Liebig-Universität Gießen, Kinderherzzentrum
  • Netherlands
      • Leiden, Netherlands, 2333 ZA
        • Leiden University Medical Center
  • Spain
      • Barcelona, Spain, 08028
        • Hosp Clinic de Barcelona
      • Granada, Spain, 18016
        • Hosp. Univ. San Cecilio
  • Sweden
      • Stockholm, Sweden, SE-141 86
        • Karolinska Universitetssjukhuset Huddinge
  • United Kingdom
      • Edgbaston, United Kingdom, B15 2TG
        • Queen Elizabeth Hospital
      • London, United Kingdom, WC1E 6DB
        • University College London Hospitals NHSFT
  • United States
    • New York
      • New York, New York, United States, 10032
        • Columbia University Medical Center
    • Ohio
      • Cincinnati, Ohio, United States, 45267
        • University of Cincinnati
    • Oregon
      • Portland, Oregon, United States, 97239
        • Oregon Health and Science University
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • UPMC
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Participants must have an obstetrical history of severe fetal anemia, hydrops, or stillbirth related to hemolytic disease of the fetus and newborn, have alloantibody titers for anti-D ≥32 or anti-Kell titers ≥4, and be currently pregnant with an antigen-positive fetus. Eligible women may enter the study at any time during the current pregnancy prior to delivery.

Description

Pregnant female participants must be ≥18 years of age with an estimated Gestational Age of ≥ 8 weeks; not currently pregnant with multiples (twins or more); and no other clinically relevant abnormalities currently or in their history that the Investigator would deem them ineligible to participate.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Pregnant women and their offspring from current pregnancy
Other: No intervention
No investigational drugs will be administered as part of the study

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percentage of Participants With Live Birth at or After Gestational Age (GA) Week 32 Without Intrauterine Transfusion (IUT)
Time Frame: GA Week 32 through GA Week 37
GA Week 32 through GA Week 37

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Percentage of Participants With Live Birth
Time Frame: Up to approximately GA Week 37
Up to approximately GA Week 37
Percentage of Participants at GA Week 24 Without an IUT
Time Frame: Week 24
Week 24
GA at First IUT
Time Frame: Up to approximately GA Week 37
Up to approximately GA Week 37
Number of IUTs Required
Time Frame: Up to approximately GA Week 37
Up to approximately GA Week 37
Percentage of Participants With Fetal Hydrops
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months
Percentage of Neonates Requiring Phototherapy
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months
Percentage of Neonates Requiring Exchange Transfusions
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months
Number of days of phototherapy required by neonate
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months
Percentage of Neonates Requiring Simple Transfusions in the First 3 Months of Life
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months
Number of Simple Transfusions Required by Neonate in the First 3 Months of Life
Time Frame: Post-Birth through Age 3 Months
Post-Birth through Age 3 Months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Janssen Research & Development, LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 16, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 22, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 22, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 26, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 26, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 27, 2018

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 12, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 11, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CR109067
  • MOM-M281-103 (Other Identifier: Janssen Research & Development, LLC)

Drug and device information, study documents

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.

Clinical Trials on Erythroblastosis, Fetal

Clinical Trials on No intervention

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings