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Determination of Abnormal Fetal Growth or Amniotic Fluid With Third Trimester Ultrasounds in Uncomplicated Pregnancies: A Randomized Trial (UP)

7. august 2018 opdateret af: Olaide Ashimi Balogun, The University of Texas Health Science Center, Houston

Determination of Abnormal Fetal Growth or Amniotic Fluid With Third Trimester Ultrasounds in Uncomplicated Pregnancies: A Randomized Trial (UP Trial)

The purpose of this study is to see whether women at a gestational age of 30 weeks or more without comorbidities, does performance of serial 3rd trimester growth ultrasounds increase the frequency of identifying abnormalities in fetal growth or amniotic fluid, when compared with women who only receive indicated ultrasounds?

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

206

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Texas
      • Bellaire, Texas, Forenede Stater, 77401
        • UT Physicians
      • Houston, Texas, Forenede Stater, 77030
        • University of Texas at Houston Health Science Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  • Maternal age of 18 at the time of consent
  • Singleton gestation

Exclusion Criteria:

  • First sonographic examination after 20 weeks
  • Women with any of the following co-morbidities: Autoimmune disorders (antiphospholipid antibody, lupus, rheumatoid arthritis, scleroderma), Cerclage in the index pregnancy, Diabetes mellitus-gestational or pre-gestational, Hematologic disorders (coagulation defects, sickle cell disease, thrombocytopenia, thrombophilia), Hypertension (chronic or pregnancy induced) before enrollment, HIV (human immunodeficiency virus), Institutionalized individuals (prisoners), Prior obstetric history of: [1) intrauterine growth restriction, 2) preterm birth before 34 weeks, 3) severe preeclampsia], eclampsia, HELLP syndrome, and 4) stillbirth after 24 weeks or neonatal death, Preterm labor or ruptured membranes before enrollment, Psychiatric disorder (bipolar, depression) on medication, Placenta previa / 3rd trimester bleeding, Renal insufficiency (serum creatinine > 1.5 mg/dL), Restrictive lung disease, Fetal red blood cell isoimmunization, Seizure disorder on medication, Thyroid disease on medication, Body Mass Index (BMI) above 40 kg/m2
  • Major fetal Anomaly including: anencephaly, spina bifida, bilateral renal agenesis, cystic hygroma with hydrops, diaphragmatic hernia, or congenital heart defects
  • Unable to understand consent in English or Spanish

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Routine third trimester care
Routine third trimester care with clinically-indicated ultrasound (control)
Enhed: Clinically-indicated ultrasound
Routine third trimester care with clinically-indicated ultrasound (control)
Eksperimentel: Serial third trimester ultrasound
Ultrasound evaluation for fetal growth and amniotic fluid will be performed every 4 weeks starting at 30 weeks (intervention group). Thus, if they continue to term, there will be 3 additional ultrasounds exams (30, 34 and 38 weeks).
Enhed: Serial third trimester ultrasound
Ultrasound evaluation for fetal growth and amniotic fluid will be performed every 4 weeks starting at 30 weeks (intervention group). Thus, if they continue to term, there will be 3 additional ultrasounds exams (30, 34 and 38 weeks).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Participants With Fetal Growth Restriction
Tidsramme: 30 to 38 weeks gestational age
30 to 38 weeks gestational age
Number of Participants With Large for Gestational Age Fetuses
Tidsramme: 30 to 38 weeks gestational age
30 to 38 weeks gestational age
Number of Participates With Oligohydraminos
Tidsramme: 30 to 38 weeks gestational age

Oligohydramnios is a condition in pregnancy characterized by a deficiency of amniotic fluid. Amniotic fluid was assessed using the amniotic fluid index (AFI) or maximum vertical pocket (MVP). Oligohydramnios was defined as AFI less than or equal to 5.0 cm or MVP less than or equal to 2.0 cm.

AFI is the sum of the vertical length of the deepest, unobstructed pocket of amniotic fluid in each of the 4 quadrants of the pregnant uterus. An AFI of less than or equal to 5cm is considered low amniotic fluid, and an AFI greater than or equal to 24cm is considered high amniotic fluid.

MVP is the vertical length of the single deepest pocket of amniotic fluid. An MVP less than or equal to 2cm is considered to be low amniotic fluid and an MVP of 8cm or greater is considered to be high amniotic fluid.

Both low and high amniotic fluid levels are worse outcomes than having normal amniotic fluid levels.
30 to 38 weeks gestational age
Number of Participates With Polyhydraminos
Tidsramme: 30 to 38 weeks gestational age

Polyhydraminos is a condition in pregnancy characterized by an excess of amniotic fluid. Amniotic fluid was assessed using either the amniotic fluid index (AFI) or maximum vertical pocket (MVP). Polyhydramnios was defined as AFI greater than or equal to 24.0 cm or MVP greater than or equal to 8.0 cm.

AFI is the sum of the vertical length of the deepest, unobstructed pocket of amniotic fluid in each of the 4 quadrants of the pregnant uterus. An AFI of less than or equal to 5cm is considered low amniotic fluid, and an AFI greater than or equal to 24cm is considered high amniotic fluid.

MVP is the vertical length of the single deepest pocket of amniotic fluid. An MVP less than or equal to 2cm is considered to be low amniotic fluid and an MVP of 8cm or greater is considered to be high amniotic fluid.

Both low and high amniotic fluid levels are worse outcomes than having normal amniotic fluid levels.
30 to 38 weeks gestational age

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Participants With Composite Neonatal Morbidity
Tidsramme: From time of delivery to 28 days after delivery
Composite Neonatal Morbidity is defined as the presence of one or more of the following: 1) Apgar score < 5 at 5 min; 2) umbilical arterial pH < 7.00; 3) intraventricular hemorrhage grade III or IV; 4) periventricular leukomalacia; 5) intubation for over 24 hrs; 6) necrotizing enterocolitis grade 2 or 3; 7) stillbirth; or 8) death within 28 days of birth.
From time of delivery to 28 days after delivery
Number of Participants With Composite Maternal Morbidity
Tidsramme: From time of delivery to discharge (average time of discharge is 4 days after delivery)
Composite Maternal Morbidity is defined as the presence of one of more of the following: 1) chorioamnionitis; 2) cesarean delivery in labor; 3) wound infection; 4) transfusion; 5) deep venous thrombus or pulmonary embolism; 6) admission to intensive care unit; 7) postpartum hemorrhage; or 8) death.
From time of delivery to discharge (average time of discharge is 4 days after delivery)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

The University of Texas Health Science Center, Houston

Efterforskere

  • Ledende efterforsker: Olaide A Ashimi Balogun, MD, The University of Texas Health Science Center, Houston

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. juni 2016

Primær færdiggørelse (Faktiske)

1. august 2017

Studieafslutning (Faktiske)

1. august 2017

Datoer for studieregistrering

Først indsendt

25. februar 2016

Først indsendt, der opfyldte QC-kriterier

3. marts 2016

Først opslået (Skøn)

9. marts 2016

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. september 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. august 2018

Sidst verificeret

1. august 2018

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • HSC-MS-16-0084

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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