Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

NCT ID: NCT05962346

Last Updated: 2025-06-30

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

RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-31

Study Completion Date

2043-07-31

Brief Summary

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The purpose of this research is to gather information on the safety and effectiveness of a procedure called Fetoscopic Endoluminal Tracheal Occlusion (FETO) at Mayo Clinic. The intent of the FETO procedure is to improve development of the lungs in fetuses diagnosed with severe congenital diaphragmatic hernia (CDH).

Detailed Description

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Conditions

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Congenital Diaphragmatic Hernia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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FETO Group

Participants will undergo fetal endoscopic tracheal occlusion (FETO) surgical procedure between 27 weeks 0 days and 29 weeks 6 days gestation.

Group Type EXPERIMENTAL

BALT GOLDBALL 2 detachable latex ballon

Intervention Type DEVICE

Inflated with fluid in the fetal trachea and provide with the occlusion necessary to promote lung growth.

BALTACCIBDPE100 Microcatheter

Intervention Type DEVICE

Used to deliver the detachable balloon

Storz fetoscopic operating sheath and miniature telescope/fetoscope

Intervention Type DEVICE

Used to percutaneously enter though the maternal abdominal wall, uterus and into the amniotic cavity, fetal mouth, pharynx, larynx, into the trachea where the delivery catheter will be used to deliver the detachable balloon that will provide with the tracheal occlusion.

Interventions

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BALT GOLDBALL 2 detachable latex ballon

Inflated with fluid in the fetal trachea and provide with the occlusion necessary to promote lung growth.

Intervention Type DEVICE

BALTACCIBDPE100 Microcatheter

Used to deliver the detachable balloon

Intervention Type DEVICE

Storz fetoscopic operating sheath and miniature telescope/fetoscope

Used to percutaneously enter though the maternal abdominal wall, uterus and into the amniotic cavity, fetal mouth, pharynx, larynx, into the trachea where the delivery catheter will be used to deliver the detachable balloon that will provide with the tracheal occlusion.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Singleton pregnancy
* Normal fetal karyotype or microarray. Results by fluorescence in situ hybridization (FISH) will be acceptable if the patient is \> 26 weeks
* Isolated severe left CDH with O/E LHR \< 25% )
* Gestation age at enrollment prior to 29 wks plus 6 days.
* Pulmonary hypoplasia with ultrasound O/E LHR \< 25% (measured at 18 0/7 to 29 5/7 weeks) at the time of surgery.
* Gestational age at FETO procedure 27 weeks 0 days to 29 weeks 6 days as determined by clinical information (LMP) and evaluation of first ultrasound
* Patient meets psychosocial criteria: able to reside within 30 minutes of Mayo Clinic, Rochester and able to comply with the travel for the follow-up requirements of the trial; patient has a support person (e.g. spouse, partner, mother) available to stay with the patient for the duration of the pregnancy at Mayo Clinic
* Patient is willing and able to give informed consent
* Appropriate multi-disciplinary counseling performed with maternal-fetal medicine, neonatology, pediatric surgery, genetics, pediatric otolaryngology (ENT)

Exclusion Criteria

* Multi-fetal pregnancy
* 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
* Psychosocial ineligibility, precluding consent: inability to reside within 30 minutes of Mayo Clinic, Rochester 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 Mayo Clinic
* Right sided CDH or bilateral CDH, isolated left sided with O/E LHR \>25% measured at 18 0/7 to 29 6/7 weeks) as determined by ultrasound
* Additional fetal anomaly and chromosomal abnormalities by ultrasound, MRI, or echocardiogram that will significantly worsen prognosis. No cases will be removed post hoc if abnormalities are discovered in the course of post-operative monitoring
* Maternal contraindication to fetoscopic surgery
* 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.
* Uterine anomaly such as large or multiple fibroids or mullerian duct abnormality that will make the procedure technically unfeasible
* 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
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Mauro H. Schenone

OTHER

Sponsor Role lead

Responsible Party

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Mauro H. Schenone

Regulatory Sponsor and Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Mauro Schenone, MD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic Minnesota

Rochester, Minnesota, United States

Site Status RECRUITING

Countries

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United States

Facility Contacts

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Mauro H. Schenone, MD

Role: primary

Related Links

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Other Identifiers

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23-002166

Identifier Type: -

Identifier Source: org_study_id