Cell-free Fetal DNA Circulating in the Maternal Plasma as a Marker for Morbidly Adherent Placenta

NCT ID: NCT02784886

Last Updated: 2016-05-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

63 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-11-30

Study Completion Date

2016-11-30

Brief Summary

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The purpose of this study is to determine whether, in a high risk population (placenta praevia and previous caesarean or prenatal suspicion of morbidly adherent placenta (MAP)), the concentration of cell-free fetal DNA circulating in the maternal plasma is significantly increased in the subgroup of morbidly adherent placenta (MAP) cases , in order to determine if the dosage of cell-free fetal DNA circulating in the maternal plasma may be a useful biological tool to detect MAP, alone or in addition to the imagery findings (ultrasonography and RMI).

Detailed Description

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Background: Morbidly adherent placenta (MAP) is a life-threatening condition characterized by placental villi being abnormally adherent to the myometrium. Prenatal identification of MAP is essential to anticipate the risk and plan optimal delivery conditions for these women while this is associated to a maternal outcome improvement. Prenatal identification based on Doppler ultrasound and/or MRI is associated with high rates of false-positive or false-negative findings responsible for adverse effects. Some cases reports have suggested that the concentration of cell-free fetal DNA circulating in the maternal plasma is significantly increased in a context of morbidly adherent placenta (MAP).

Objective: The primary objective is to determine whether the concentration of cell-free fetal DNA circulating in the maternal plasma is significantly increased in women with morbidly adherent placenta (MAP) compared to women with placenta praevia and previous caesarean. Secondary objectives are to determine whether cell-free fetal DNA circulating in the maternal plasma is a useful biological tool to detect MAP, alone or in addition to the imagery findings (ultrasonography and RMI), in a high risk population (placenta praevia and previous caesarean or only prenatal suspicion of MAP).

Design: Prospective observational study of pregnant women with placenta praevia and previous cesaeran or with prenatal suspicion of placenta accreta, conducted in 5 centers.

Methods: We expect to include 83 women at risk of MAP in two years, of whom approximately 17 (20%) will have a MAP.

Main outcome measures: The primary outcome measure is concentration of cell-free fetal DNA circulating in maternal plasma.

Conclusion: This study will be the first prospective study to include women at risk of placenta accreta and to investigate whether the concentration of cell-free fetal DNA circulating in maternal plasma is increased in MAP women and whether it is a useful biological marker to detect prenatally MAP in a high risk population.

Conditions

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Morbidly Adherent Placenta Placenta Accreta Placenta Increta Placenta Percreta

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Women at high risk of MAP

Blood sample

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

Every woman:

* delivering in one of the 5 maternity units that participate to a Population-based prospective observational study of pregnant women with a placenta praevia and previous cesarean or with prenatal suspicion of accreta (PACCRETA) .
* With a placenta praevia and at least one previous cesarean delivery or having a prenatal suspicion of placenta accreta
* aged 18 or more

Exclusion Criteria

Every woman:

* not understanding French.
* refusing to participate in the study
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Institut National de la Santé Et de la Recherche Médicale, France

OTHER_GOV

Sponsor Role collaborator

Assistance Publique - Hôpitaux de Paris

OTHER

Sponsor Role collaborator

University Hospital, Angers

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Catherine Deneux-Tharaux, MD, PhD

Role: STUDY_DIRECTOR

Inserm U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Paris, France

Locations

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Angers University Hospita

Angers, , France

Site Status

Countries

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France

References

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Sekizawa A, Jimbo M, Saito H, Iwasaki M, Sugito Y, Yukimoto Y, Otsuka J, Okai T. Increased cell-free fetal DNA in plasma of two women with invasive placenta. Clin Chem. 2002 Feb;48(2):353-4. No abstract available.

Reference Type BACKGROUND
PMID: 11805017 (View on PubMed)

Jimbo M, Sekizawa A, Sugito Y, Matsuoka R, Ichizuka K, Saito H, Okai T. Placenta increta: Postpartum monitoring of plasma cell-free fetal DNA. Clin Chem. 2003 Sep;49(9):1540-1. doi: 10.1373/49.9.1540. No abstract available.

Reference Type BACKGROUND
PMID: 12928242 (View on PubMed)

Kayem G, Deneux-Tharaux C, Sentilhes L; PACCRETA group. PACCRETA: clinical situations at high risk of placenta ACCRETA/percreta: impact of diagnostic methods and management on maternal morbidity. Acta Obstet Gynecol Scand. 2013 Apr;92(4):476-82. doi: 10.1111/aogs.12078. Epub 2013 Feb 15.

Reference Type BACKGROUND
PMID: 23360123 (View on PubMed)

Sentilhes L, Goffinet F, Kayem G. Management of placenta accreta. Acta Obstet Gynecol Scand. 2013 Oct;92(10):1125-34. doi: 10.1111/aogs.12222.

Reference Type BACKGROUND
PMID: 23869630 (View on PubMed)

Other Identifiers

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DC-2011-1467

Identifier Type: -

Identifier Source: org_study_id

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