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Congenital Diaphragmatic HerniaFETONCT02596802

Fetoscopic Endoluminal Tracheal Occlusion (FETO) for Congenital Diaphragm Hernia

A study testing FETO therapy in people with Congenital Diaphragmatic Hernia, run by Anthony Johnson at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The goal is to assess the feasibility and safety of implementing Fetoscopic Endoluminal Tracheal Occlusion (FETO) therapy in fetuses with severe left Congenital Diaphragmatic Hernia (CDH) at UTHealth. Read more about this study

Who is it for?
Ages 18 to 45 years, women only
Conditions the study is for
Congenital Diaphragmatic Hernia
What is being tested?
FETO therapy
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
1 Dec 2015to 31 Dec 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Pregnant women age 18 years and older
  • Singleton pregnancy
  • Normal fetal karyotype with confirmation by culture results. Results by fluorescence in situ hybridization (FISH) will be acceptable if the patient is > 26 weeks
  • Isolated Left CDH with liver up
  • O/E LHR < 30% - Gestation age at time of enrollment prior to 29 wks plus 5 days as determined by clinical information (LMP, 1st or 2nd trimester ultrasound) and evaluation of first ultrasound (measured at 270 to 296 weeks) at the time of surgery
  • Gestational age at FETO procedure with O/E LHR < 30% at 27 weeks 0 days to 29 weeks 6 days as determined by clinical information (LMP) and evaluation of first ultrasound
  • Patient meets psychosocial criteria
  • Informed consent

Who cannot join

  • Patient < 18 years of age
  • Multi-fetal pregnancy
  • History of natural rubber latex allergy
  • Preterm labor, cervix shortened (<15 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 The Fetal Center at Children's Memorial Hermann Hospital. and inability to comply with the travel for the follow-up requirements of the trial; 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 The Fetal Center at Children's Memorial Hermann Hospital.
  • Right sided CDH or bilateral CDH, isolated left sided with O/E LHR ≥25% (measured at 18 weeks 0 days to 29 weeks 5 days) as determined by ultrasound[1]
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  • Additional fetal anomaly and chromosomal abnormalities by ultrasound, MRI, or echocardiogram at the fetal treatment center. No cases will be removed post hoc if abnormalities are discovered in the course of post-operative monitoring
  • Maternal contraindication to fetoscopic surgery or severe maternal medical condition in pregnancy
  • History of incompetent cervix with or without cerclage
  • Placental abnormalities (previa, abruption, accrete) 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 anomaly 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The University of Texas Health Science Center at Houston

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: Pilot Trial of Fetoscopic Endoluminal Tracheal Occlusion (FETO) in Severe Left Congenital Diaphragmatic Hernia (CDH)

The goal is to assess the feasibility and safety of implementing Fetoscopic Endoluminal Tracheal Occlusion (FETO) therapy in fetuses with severe left Congenital Diaphragmatic Hernia (CDH) at UTHealth. UTHealth's success in this study (with an initial 5 patients) will determine the feasibility of UTHealth's future participation in multi-center trials of this intervention.

Being tested
FETO therapy
Keywords
Fetoscopic Endoluminal Tracheal Occlusion, Congenital Diaphragmatic Hernia
Medical subject headings
Hernias, Diaphragmatic, Congenital

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • FETO therapyDevice

    Fetoscopic surgery at 27 to 31 weeks and 6 days gestation.

Study groups in NCT02596802
Study groupRoleWhat they receive
FETO therapyExperimentalIntervention name: FETO therapy
Receives: Device: FETO therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Successful placement of Balt Goldbal2 balloon

    Measured: 7 weeks after placement

  2. Successful removal of Balt Goldbal2 balloon

    Measured: within 5 weeks prior to delivery

  3. Gestational age at delivery

    Measured: at delivery

Secondary outcomes (3)
  1. Lung volume

    Measured: 7 weeks after placement of balloon

  2. Lung head ratio

    Measured: 7 weeks after placement of balloon

  3. Survival at 30 days

    Measured: 30 days post delivery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 2015 (estimated)
  2. Study start1 Dec 2015
  3. Primary completion20 Dec 2024
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Device feasibility
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02596802
Sponsor's protocol ID
HSC-MS-15-0796
Acronym
FETO
Status last verified
Oct 2026
First submitted
2 Nov 2015
Last updated
20 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing FETO therapy in people with Congenital Diaphragmatic Hernia, run by Anthony Johnson at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 20 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Successful placement of Balt Goldbal2 balloon (time frame: 7 weeks after placement). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Oct 2026.

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