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Completed Phase 2 Interventional Results available

A Study to Evaluate the Safety, Efficacy, Pharmacokinetics and Pharmacodynamics of M281 Administered to Pregnant Women at High Risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn (HDFN)

ClinicalTrials.gov ID: NCT03842189

Public ClinicalTrials.gov record NCT03842189. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 3:42 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Open-label Study to Evaluate the Safety, Efficacy, Pharmacokinetics and Pharmacodynamics of M281 Administered to Pregnant Women at High Risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn (HDFN)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to evaluate the safety in mother and neonate/infant of M281 administered to pregnant women who are at high risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn (EOS-HDFN). The effectiveness of the investigational drug M281 will be measured by looking at the percentage of participants with live birth at or after gestational age (GA) 32 weeks and without a need for an intrauterine transfusion (IUT) throughout their entire pregnancy.

Study identification

NCT ID
NCT03842189
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
25 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 5, 2018 (Actual)
Primary completion
Aug 5, 2024 (Actual)
Completion
Aug 5, 2024 (Actual)
Last update posted
Mar 25, 2026

2018 – 2024

United States locations

U.S. sites
8
U.S. states
7
U.S. cities
8
Facility City State ZIP Site status
University of California San Francisco San Francisco California 94143 —
Columbia University Medical Center New York New York 10032 —
University of Cincinnati Cincinnati Ohio 45267 —
Oregon Health and Science University Portland Oregon 97239 —
University of Pittsburgh Pittsburgh Pennsylvania 15232 —
Dell Children's Medical Center of Central Texas Austin Texas 78723 —
University of Texas Health Science Center Houston Texas 77030 —
University of Utah Salt Lake City Utah 84132 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 11 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03842189, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 25, 2026 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03842189 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →