NCT05100693

Brief Summary

The purpose of this study is to demonstrate the ability to prenatally deflate and to evaluate the safety of the Smart-TO device for fetoscopic endoluminal tracheal occlusion (FETO) in fetuses with congenital diaphragmatic hernia and moderate to severe pulmonary hypoplasia.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
5mo left

Started Sep 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress93%
Sep 2021Nov 2026

Study Start

First participant enrolled

September 8, 2021

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

September 20, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

October 29, 2021

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Last Updated

October 29, 2021

Status Verified

October 1, 2021

Enrollment Period

4.9 years

First QC Date

September 20, 2021

Last Update Submit

October 19, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • To demonstrate the ability to prenatally deflate the Smart-TO balloon by the magnetic fringe field generated by an MRI scanner

    • Deflation rate after MRI exposure, assessed through ultrasound (US) immediately after MRI exposure

    Up to 34+6 weeks of pregnancy

Secondary Outcomes (5)

  • Balloon expulsion from the fetal airways after deflation.

    Immediately after MRI exposure

  • Rate of spontaneous deflation of the balloon.

    Up to 34+6 weeks of pregnancy

  • Percentage of lung growth

    Two weeks after FETO

  • Number of adverse events related to the balloon.

    From date of inclusion until date of discharge from the hospital

  • Balloon localisation at birth

    At birth

Study Arms (1)

Procedure FETO with the Smart-TO balloon

EXPERIMENTAL

Fetal endoscopic tracheal occlusion using the Smart-TO balloon. Balloon removal procedure by peripheral course around the MR scanner

Other: Fetoscopic Endoluminal Tracheal Occlusion with the Smart-TO Balloon

Interventions

Fetal Endoscopic Tracheal Occlusion using the Smart-TO balloon and non-invasive balloon removal by the peripheral magnetic field of an magnetic resonance scanner.

Also known as: FETO
Procedure FETO with the Smart-TO balloon

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women carrying a fetus with isolated CDH eligible for FETO, i.e. with severe or moderate hypoplasia:
  • Left sided CDH with severe (i.e. quotient of observed-to-expected- lung-to-head ratio under 25%) or moderate pulmonary hypoplasia (observed-to-expected- lung-to-head ratios of 25 to 34.9% (any liver position), or 35 to 44.9% with intrathoracic liver herniation)
  • Right sided CDH with severe pulmonary hypoplasia (quotient of observed-to-expected- lung-to-head ratio under 50%)
  • Voluntary written informed consent of the participant or their legally authorized representative has been obtained prior to any screening procedures
  • Maternal age of 18 years or older
  • Single pregnancy
  • Signed informed consent
  • Consent to have an ultrasound of the uterus after delivery when indicated
  • Postnatal management center agrees to participate

You may not qualify if:

  • Participants eligible for this Trial must not meet any of the following criteria:
  • History of allergy to latex
  • Contraindication to fetoscopy and FETO (maternal diseases or technical limitations making prenatal surgery hazardous or impossible)
  • Premature Membrane Rupture (PROM)
  • Multiple pregnancy
  • Maternal age less than 18 years
  • Refusal to stay close to the UZ Leuven until balloon removal
  • Any disorder, which in the Investigator's opinion might jeopardise the participant's safety or compliance with the protocol
  • Any prior or concomitant treatment(s) that might jeopardise the participant's safety or that would compromise the integrity of the Trial
  • Participation in another interventional trial with an investigational medicinal product (IMP) or device

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UZ Leuven

Leuven, 3000, Belgium

RECRUITING

MeSH Terms

Conditions

Hernias, Diaphragmatic, Congenital

Condition Hierarchy (Ancestors)

Congenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesHernia, DiaphragmaticInternal HerniaHerniaPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Central Study Contacts

Jan Depret, PhD, MD

CONTACT

David Basurto, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 20, 2021

First Posted

October 29, 2021

Study Start

September 8, 2021

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

November 1, 2026

Last Updated

October 29, 2021

Record last verified: 2021-10

Data Sharing

IPD Sharing
Will not share

Locations