Biomarkers of Cytomegalovirus Fetal Infection and Disease (BIO-CCMV)

November 4, 2022 updated by: Assistance Publique - Hôpitaux de Paris

Biomarkers of Fetal Infection and Disease Following Maternal HCMV Infection

The purposes of this study are to determine 1) if the diagnosis of CMV fetal infection could be done directly in the maternal blood instead of requesting an amniocentesis and 2) if innovative technologies such as proteomic, transcriptomic, methylomic and lipidomic applied in fetal samples could allow the discovery of new biomarkers of fetal infection.

Study Overview

Status

Recruiting

Intervention / Treatment

Detailed Description

Human cytomegalovirus (HCMV) is the most common cause of congenital infection worldwide. The diagnosis of CMV fetal infection relies on the detection of viral DNA in amniotic fluid by polymerase chain reaction after amniocentesis. Non-invasive diagnosis of fetal infection directly in maternal blood is not available. Symptoms develop in about 10% of HCMV-infected fetuses. Despite important advance in medical imaging, establishing the prognosis of an infected fetus remains challenging. Thrombocytopenia, blood HCMV DNA, anti-HCMV immunoglobulin M and β2-microglobulin are recognized biomarkers of symptomatic fetal infections. However, the predictive value of these individual markers is not. Omics technologies could help to establish multimarker signatures of symptomatic infections.

The objective of the study is to:

  • validate fetal blood HCMV DNA, anti-HCMV immunoglobulin M , β2-microglobulin and platelet count as biomarkers of fetal disease;
  • identify new biomarkers of severe fetal disease using transcriptomic, methylomic and lipidomic analyses of fetal blood and of amniotic fluid.
  • validate a non-invasive CMV fetal infection diagnosis tool based on deep-sequencing of targeted CMV genes in maternal blood

Study Type

Observational

Enrollment (Anticipated)

265

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 Locations

      • Paris, France, 75015
        • Recruiting
        • Hopital Necker Enfants-malades
        • 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

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

  • 320 pregnant women with CMV primary infection or carrying a fetus with compatible ultrasound features to obtained 65 infected fetuses and 15 fetuses diagnosed with severely symptomatic infection
  • 200 controls pregnant women carrying a fetus with aneuploidy-dysgonosomy

Description

Inclusion Criteria:

CMV cases:

  • Informed consent obtained from the mother;
  • Pregnant women either with a history of primary CMV infection in pregnancy or carrying a fetus with ultrasound features compatible with CMV infection and willing to have amniocentesis for fetal diagnosis of CMV infection

Control cases :

- Pregnant women carrying a fetus with aneuploidy-dysgonosomy

Exclusion Criteria:

CMV cases:

  • Fetuses older than the 26 weeks of gestation at the time of diagnosis of HCMV infection or impossibility to collect foetal samples by the end of the 26th week of gestation
  • Mother unable to understand the protocol
  • Absence of informed consent
  • Any clinical rationale not to perform cordocentesis
  • Mother <18 years age
  • Administration of immunoglobulins or anti-viral therapy to the mother before the collection of fetal samples or before the diagnosis of symptomatic fetal infection
  • Administration of anti-HCMV drugs to the foetus before the collection of fetal samples or before the diagnosis of symptomatic fetal infection
  • Administration of immunosuppressive drugs to the mother during pregnancy
  • Maternal auto immune disorders
  • Multiple pregnancies.

Control cases :

  • Mother unable to understand the protocol
  • Absence of informed consent

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
CMV cases
bio-specimen collected for pregnant women with CMV infection
Control cases
bio-specimen collected for pregnant women carrying a fetus with aneuploidy-dysgonosomy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Abnormal Laboratory Values in fetal blood
Time Frame: At 23 weeks gestation +/- 3 weeks
Fetal platelet in mm3/ml, β2 microglobulinein mg/L, proteins concentration in mg/L , Metabolites concentration in mmoles/l , Lipids concentration in mmoles/l , RNA messagers concentration in µg/ml profil
At 23 weeks gestation +/- 3 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Abnormal Laboratory Values in amniotic fluid
Time Frame: At 23 weeks gestation +/- 3 weeks
CMV DNA quantification in UI/mL , protein concentration in mg/L, Metabolites concentration in mmoles/l , Lipids concentration in mmoles/l, RNAm concentration in µg/ml profil ,
At 23 weeks gestation +/- 3 weeks
Non invasive diagnosis of fetal CMV infection in maternal blood in UI/mL.
Time Frame: At 23 weeks gestation +/- 5 weeks
CMV fetal DNA measurement in maternal blood
At 23 weeks gestation +/- 5 weeks

Collaborators and Investigators

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

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.

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

December 1, 2016

Primary Completion (ANTICIPATED)

December 1, 2022

Study Completion (ANTICIPATED)

June 1, 2023

Study Registration Dates

First Submitted

January 3, 2017

First Submitted That Met QC Criteria

March 21, 2017

First Posted (ACTUAL)

March 27, 2017

Study Record Updates

Last Update Posted (ACTUAL)

November 7, 2022

Last Update Submitted That Met QC Criteria

November 4, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • 14024

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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