Parvovirus B19 Infection in Pregnancy: Clinical Manifestations and Fetus/Newborn Outcome (ParvoPre)

January 7, 2026 updated by: Daniele Lilleri, Fondazione IRCCS Policlinico San Matteo di Pavia
The goal of this observational study is to define the rate of intrauterine parvovirus B19 infection and fetal/newborn complications after parvovirus B19 infection of pregnant women. Secondary objectives are risk factors, pregnancy outcomes, long-term sequelae and efficacy of the management interventions.

Study Overview

Status

Status

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

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.

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 (Estimated)

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.
150

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

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Italy
      • Brescia, Italy, 25123
        • Not yet recruiting
        • ASST degli Spedali Civili di Brescia
        • Contact:
      • Milan, Italy, 20122
      • Milan, Italy, 20157
      • Monza, Italy, 20900
        • Not yet recruiting
        • Fondazione IRCCS San Gerardo dei Tintori
        • Contact:
    • Lombardy
      • Pavia, Lombardy, Italy, 27100
        • Recruiting
        • Fondazione IRCCS Policlinico San Matteo
        • 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

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Pregnant women

Description

Inclusion Criteria:

  • Pregnant women >18 years with parvovirus B19 infection and their neonates.

Exclusion Criteria:

  • None

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

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 fetuses/newborns with intrauterine B19V infection.
Time Frame: From diagnosis of parvovirus B19 infection in pregnancy to 24/48 hours of life of the newborn.
From diagnosis of parvovirus B19 infection in pregnancy to 24/48 hours of life of the newborn.
Percentage of fetuses/newborns with complications due to B19V intrauterine infection.
Time Frame: From diagnosis of parvovirus B19 infection in pregnancy to 24/48 hours of life of the newborn.
From diagnosis of parvovirus B19 infection in pregnancy to 24/48 hours of life of the newborn.

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
Measure Description
Time Frame
Percentage of women with symptomatic B19V infection.
Time Frame: At diagnosis of parvovirus B19 infection in pregnancy
At diagnosis of parvovirus B19 infection in pregnancy
Percentage of fetuses with B19V disease.
Time Frame: From diagnosis of parvovirus B19 infection in pregnancy to delivery.
The following findings will be considered: anemia, hydrops, ascites, pericardial effusion, pleural effusion, subcutaneus oedema, cardiomegaly, placental thickening, cerebral abnormalities, growth retardation.
From diagnosis of parvovirus B19 infection in pregnancy to delivery.
Percentage of fetuses receiving intrauterine transfusion.
Time Frame: From diagnosis of parvovirus B19 infection in pregnancy to delivery.
From diagnosis of parvovirus B19 infection in pregnancy to delivery.
Percentage of newborns with B19V disease.
Time Frame: From diagnosis of parvovirus B19 infection in pregnancy to 20/30 days of life of the newborn.
The following signs/symptoms will be considered: anemia, paleness, petechiae, purpura, icterus, hepato-splenomegaly, ascites, hydrops, pleural effusion, pericardial effusion, neurologic abnormalities.
From diagnosis of parvovirus B19 infection in pregnancy to 20/30 days of life of the newborn.
Percentage of infants with neurologic abnormalities.
Time Frame: From birth to 2 years of life.
From birth to 2 years of life.

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.
Fondazione IRCCS Policlinico San Matteo di Pavia

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
ASST Fatebenefratelli Sacco
Fondazione IRCCS San Gerardo dei Tintori
Asst Degli Spedali Civili Di Brescia

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.
March 6, 2025

Primary Completion (Estimated)

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.
March 1, 2026

Study Completion (Estimated)

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.
December 1, 2027

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 19, 2025

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.
January 7, 2026

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.
January 13, 2026

Study Record Updates

Last Update Posted (Actual)

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.
January 13, 2026

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.
January 7, 2026

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.
January 1, 2026

More Information

Terms related to this study

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.
  • ParvoPre

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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