North American Fetal Therapy Network for Long-term Outcome Following Fetoscopic Endoluminal Tracheal Occlusion in Severe Left and Right Congenital Diaphragmatic Hernia

Recruiting now · Not applicable

Conditions studied: Congenital Diaphragmatic Hernia

In brief

The purpose of this study is to evaluate successful placement and removal of Fetoscopic Endoluminal Tracheal Occlusion (FETO) device in cases of intrathoracic liver herniation with isolated left congenital diaphragmatic hernia (LCDH) with Observed/Expected (O/E) Lung to Head Circumference Ratio (LHR) \< 30% or isolated right congenital diaphragmatic hernia (RCDH) with O/E LHR \< 45%,to compare survival to discharge from the neonatal intensive care units (NICU), between fetuses with intrathoracic liver herniation and isolated LCDH with O/E LHR \< 30% that receive FETO procedure performed at 27 weeks 0 days to 29weeks 6 days of gestation to those with intrathoracic liver herniation, isolated LCDH and o/e LRH \< 30% that undergo expectant management, to compare the neonatal survival rate to discharge from the neonatal intensive care units (NICU), between fetuses with intrathoracic liver herniation, isolated RCHD with o/e LHR \< 45% that undergo FETO procedure performed at 27 weeks 0 days to 29 weeks 6 days gestation to those with intrathoracic liver herniation, isolated RCHD and o/e LHR \< 45% that elect to proceed with expectant management, to evaluate the frequency of maternal and fetal complications associated with FETO procedure, to evaluate whether the FETO procedure is associated with reduced long-term mortality and morbidities in isolated LCDH survivors with o/e LHR \<30% when compared to isolated LCDH with o/e LRH \<30% that undergo expectant management where all fetuses were found to have intrathoracic liver herniation and to evaluate whether the FETO procedure is associated with reduced long-term mortality and morbidities in isolated RCDH survivors with o/e LHR ≤ 45% when compared to isolated RCHD with LHR \< 45% that undergo expectant management where all fetuses were found to have intrathoracic liver herniation

Key facts

Study ID: NCT06739356
Run by: The University of Texas Health Science Center, Houston
People needed: 80
Starts: 2025-03-04
Expected to finish: 2031-12-01
Last updated by the study team: 2025-08-19

Who can join

Age: 18 and older. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

Pregnant women who are able to consent
Singleton pregnancy
Normal Karyotype, chromosomal microanalysis (CMA) with non-pathologic variants, Whole exome sequencing (WES) or whole genome sequencing (WGS) . Results by fluorescence in situ hybridization (FISH) will be acceptable if the patient is > 26 weeks
Gestational age at enrollment is prior to 296 wks.
Intrathoracic liver herniation
Isolated left CDH with o/e LHR < 30% at enrollment (180 to 295 wks.). or
Isolated RCDH with o/e LHR < 45% at enrollment (180 to 295 wks.)
Cervical length by transvaginal ultrasound > 20 mm within 24 hours prior to FETO procedure
Patient meets psychosocial criteria
Informed consent understood

You may not qualify if…

History of natural rubber latex allergy
Preterm labor, cervix shortened (<20 mm at enrollment or within 24 hours of FETO balloon insertion procedure) or uterine anomaly strongly predisposing to preterm labor, placenta previa.
Psychosocial ineligibility, precluding consent:
Inability to reside within 30 minutes of University of Texas Health Science Center at Houston Fetal Center
The patient does not have a support person (e.g., spouse, partner, mother) available to stay with the patient for the duration of the pregnancy at UTHealth Houston Fetal Center
Bilateral CDH, isolated left sided CDH with O/E LHR ≥ 30% (measured at 180 to 295 weeks), isolated right sided CDH with O/E LHR > 45% (measured at 180 to 295 weeks), as determined by ultrasound
No liver herniation into thoracic cavity
Additional fetal anomaly and chromosomal abnormalities by ultrasound, MRI, or echocardiogram at the fetal treatment center. Exclude chromosomal abnormalities, associated anomalies recognized to alter survival prognosis (i.e., CDH and congenital heart disease) or presence of an underlying genetic syndrome (i.e., Fryns).
Maternal contraindication to fetoscopic surgery or severe maternal medical condition in pregnancy
History of incompetent cervix with or without cerclage
Placental abnormalities (previa, abruption, accreta) known at time of enrollment
Maternal-fetal Rh isoimmunization, Kell sensitization or neonatal alloimmune thrombocytopenia affecting the current pregnancy
Maternal HIV, Hepatitis-B, Hepatitis-C status positive because of the increased risk of transmission to the fetus during maternal-fetal surgery. If the patient's HIV or Hepatitis status is unknown, the patient must be tested and found to have negative results before enrollment
Uterine anomalies such as large or multiple fibroids or Mullerian duct abnormality
There is no safe or technically feasible fetoscopic approach to balloon placement
Participation in another intervention study that influences maternal and fetal morbidity and mortality. or participation in this trial in a previous pregnancy

Where it is running

The University of Texas Health Science Center at Houston — Houston, Texas, United States (enrolling)

Full record on ClinicalTrials.gov

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