COmputerized CTG Self-MOnitoring Versus Standard Doppler Assessment in Late-onset FGR: COSMOS Study

NCT ID: NCT05034861

Last Updated: 2022-12-15

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

Clinical Phase

NA

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-12-13

Study Completion Date

2024-12-31

Brief Summary

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Fetal growth restriction is one of the major causes of perinatal morbidity, mortality and adverse neurological outcome. Growth restricted fetuses do not reach their potential due to multiple factors. Although early (\<32 weeks' gestation) FGR is associated with the highest risk of adverse outcomes, late FGR (≤ 32 weeks' gestation) is more common in daily maternal-fetal medicine care. Despite its' prevalence, optimal standard for monitoring differs between the centers and may be difficult in case of limited access to advanced perinatal care. We present a protocol for COmputerized CTG Self-MOnitoring versus Standard Doppler assessment in Late-onset FGR (COSMOS) trial, which is a prospective, cross-over, open-label and randomized trial that compares two different protocols for late-onset FGR observation.

All women carrying fetuses with late-onset FGR with positive end-diastolic flow in umbilical artery will be invited to participate in the randomized trial. Patients will be randomly divided into two groups: CTG - a group that will receive electronic device for cCTG home assessment, and Doppler - a group that will be monitored according to standard Doppler velocimetry criteria. Further management will depend on the arm of the study. Pregnancy and neonatal outcomes will be collected and analyzed.

Detailed Description

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Conditions

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Fetal Growth Restriction

Keywords

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fetal growth restriction fetal growth retardation pregnancy cardiotocography ultrasound Doppler intrauterine growth restriction maternal-fetal medicine obstetrics

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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cCTG

cCTG group, that will undergo a following process: EFW and Doppler assessment biweekly, and instead of additional weekly Doppler-only assessment, the patients will be provided with an electronic cCTG device at no cost (Carebits). Women will be asked to apply Carebits device at least twice weekly for at least 30 minutes (e.g. Mondays-Thursdays) with minimum 72 hours interval in case of 2 sessions per week. The trace will be examined by an independent centre, available 24 hours daily. The person examining the trace is trained or already specialized in Obs\&Gynae. In case of situation requiring medical intervention, the patient will be immediately contacted by phone and advised to self-refer to the nearest Antenatal Unit. In case of normal trace, a full report will follow within 30 minutes after last reading of the trace.

Group Type EXPERIMENTAL

cCTG

Intervention Type DEVICE

Self-applied home computerized CTG device used twice weekly instead of standard Doppler assessment once weekly.

Doppler

Doppler group, that will undergo a standard process of antenatal care in case of FGR. The EFW and CTG STV will be assessed biweekly. In case of positive end-diastolic flow in UA, Doppler assessment (MCA PI, UA PI, DV PI, Ut PI) will be provided on a weekly basis. In case of deterioration to AEDF/REDF, further management will depend on clinical situation and the patient will be excluded from the study group (applies to both arms).

Group Type ACTIVE_COMPARATOR

Doppler

Intervention Type DIAGNOSTIC_TEST

Standard Doppler assessment provided once weekly in case of late FGR with positive end diastolic flow in the umbilical artery.

Interventions

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cCTG

Self-applied home computerized CTG device used twice weekly instead of standard Doppler assessment once weekly.

Intervention Type DEVICE

Doppler

Standard Doppler assessment provided once weekly in case of late FGR with positive end diastolic flow in the umbilical artery.

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Carebits device www.carebits.pl Doppler assessment

Eligibility Criteria

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Inclusion Criteria

* women aged 18 years or older,
* singleton pregnancy,
* ≥32+0 and ≤36+6 weeks' of gestation,
* fluent in Polish or English,
* diagnosed with late-onset FGR based of the Delphi criteria,
* with positive EDF in UA,
* with macroscopically normal fetus on ultrasound assessment.

Exclusion Criteria

* multiple pregnancy,
* fetal malformations,
* abnormal genetic testing results (if available),
* uncertain pregnancy dating,
* indication for immediate delivery within 48 hours after enrollment,
* preterm prelabour rupture of membranes.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Bielanski Hospital

OTHER

Sponsor Role collaborator

Institute of Mother and Child, Warsaw, Poland

OTHER

Sponsor Role lead

Responsible Party

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Urszula Nowacka

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Urszula Nowacka, MD

Role: PRINCIPAL_INVESTIGATOR

Institute of Mother and Child, Warsaw, Poland

Locations

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Institute of Mother and Child

Warsaw, , Poland

Site Status RECRUITING

Countries

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Poland

Central Contacts

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Urszula Nowacka, MD

Role: CONTACT

Phone: +48223277044

Email: [email protected]; [email protected]

Tadeusz Issat, Professor

Role: CONTACT

Phone: +48223277044

Email: [email protected]

Facility Contacts

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Anna Fijałkowska, Professor

Role: primary

References

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Lees CC, Stampalija T, Baschat A, da Silva Costa F, Ferrazzi E, Figueras F, Hecher K, Kingdom J, Poon LC, Salomon LJ, Unterscheider J. ISUOG Practice Guidelines: diagnosis and management of small-for-gestational-age fetus and fetal growth restriction. Ultrasound Obstet Gynecol. 2020 Aug;56(2):298-312. doi: 10.1002/uog.22134. No abstract available.

Reference Type RESULT
PMID: 32738107 (View on PubMed)

Nohuz E, Riviere O, Coste K, Vendittelli F. Prenatal identification of small-for-gestational age and risk of neonatal morbidity and stillbirth. Ultrasound Obstet Gynecol. 2020 May;55(5):621-628. doi: 10.1002/uog.20282. Epub 2020 Apr 6.

Reference Type RESULT
PMID: 30950117 (View on PubMed)

Ciobanu A, Khan N, Syngelaki A, Akolekar R, Nicolaides KH. Routine ultrasound at 32 vs 36 weeks' gestation: prediction of small-for-gestational-age neonates. Ultrasound Obstet Gynecol. 2019 Jun;53(6):761-768. doi: 10.1002/uog.20258. Epub 2019 Apr 30.

Reference Type RESULT
PMID: 30883981 (View on PubMed)

Figueras F, Gratacos E. Stage-based approach to the management of fetal growth restriction. Prenat Diagn. 2014 Jul;34(7):655-9. doi: 10.1002/pd.4412. Epub 2014 Jun 9.

Reference Type RESULT
PMID: 24839087 (View on PubMed)

Gordijn SJ, Beune IM, Thilaganathan B, Papageorghiou A, Baschat AA, Baker PN, Silver RM, Wynia K, Ganzevoort W. Consensus definition of fetal growth restriction: a Delphi procedure. Ultrasound Obstet Gynecol. 2016 Sep;48(3):333-9. doi: 10.1002/uog.15884.

Reference Type RESULT
PMID: 26909664 (View on PubMed)

Molina LCG, Odibo L, Zientara S, Obican SG, Rodriguez A, Stout M, Odibo AO. Validation of Delphi procedure consensus criteria for defining fetal growth restriction. Ultrasound Obstet Gynecol. 2020 Jul;56(1):61-66. doi: 10.1002/uog.20854. Epub 2020 Jun 7.

Reference Type RESULT
PMID: 31520557 (View on PubMed)

Baschat AA. Planning management and delivery of the growth-restricted fetus. Best Pract Res Clin Obstet Gynaecol. 2018 May;49:53-65. doi: 10.1016/j.bpobgyn.2018.02.009. Epub 2018 Mar 1.

Reference Type RESULT
PMID: 29606482 (View on PubMed)

Akolekar R, Ciobanu A, Zingler E, Syngelaki A, Nicolaides KH. Routine assessment of cerebroplacental ratio at 35-37 weeks' gestation in the prediction of adverse perinatal outcome. Am J Obstet Gynecol. 2019 Jul;221(1):65.e1-65.e18. doi: 10.1016/j.ajog.2019.03.002. Epub 2019 Mar 13.

Reference Type RESULT
PMID: 30878322 (View on PubMed)

Antenatal and postnatal mental health: clinical management and service guidance. London: National Institute for Health and Care Excellence (NICE); 2018 Apr. Available from http://www.ncbi.nlm.nih.gov/books/NBK553127/

Reference Type RESULT
PMID: 31990493 (View on PubMed)

Lai J, Syngelaki A, Nicolaides KH, von Dadelszen P, Magee LA. Impact of new definitions of preeclampsia at term on identification of adverse maternal and perinatal outcomes. Am J Obstet Gynecol. 2021 May;224(5):518.e1-518.e11. doi: 10.1016/j.ajog.2020.11.004. Epub 2020 Nov 6.

Reference Type RESULT
PMID: 33166504 (View on PubMed)

Other Identifiers

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InstituteMCPoland

Identifier Type: -

Identifier Source: org_study_id