Fetal Endoscopic Surgery for Spina Bifida

NCT ID: NCT03315637

Last Updated: 2017-10-20

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-31

Study Completion Date

2024-12-31

Brief Summary

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This study aims to assess the feasibility to perform a fetoscopic prenatal repair of an open neural tube defect, and secondly to assess the maternal, fetal and neonatal outcomes.

Detailed Description

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Introduction:

Spina bifida is a congenital malformation characterized by a failure in neural tube closure. Unprotected fetal neural tissue at the spine level undergoes not only progressive neurodegeneration in spinal cord, but also the impairment in brain development, hindbrain herniation or Chiari II malformation probably due to pressure disturbances resulting from a continuous leakage of cerebrospinal fluid through the defect. The neurological consequences at birth are irreversible and sometimes devastating, including paraplegia, sphincter urinary and fecal incontinence, hydrocephalus, cranial nerve disturbances, respiratory problems and death due to spinal cord injury and brain maldevelopment.

Intrauterine fetal open repair of the defect has proved to improve hindbrain herniation and decrease the need of cerebrospinal shunting.

Hypothesis:

The investigators hypothesize that minimally invasive surgery of spina bifida is feasible and may minimize surgical aggression and obstetrical complications, with similar neonatal and neurological results.

Intervention:

In this study the investigators propose a fetoscopic skin closure technique. After a maternal laparotomy the uterus is exteriorized, the amniotic cavity is accessed by fetoscopic approach. The placode is dissected from the surrounding tissue and dropped into the opened spinal canal, untethered. Part of the cystic tissue is resected. The edges are then closed to the midline.

Follow up:

After surgery patients are followed up at the Fetal Medicine Unit every one or two weeks.

The mode of delivery is decided according to obstetric criteria. Neonates will be examined at birth, and followed up regularly at least until 30 months. Patients are lifetime followed up by our Multidisciplinary myelomeningocele (MMC) Committee that comprises professionals from the Spina Bifida Unit, Neonatologists, Pediatric Surgeons, Pediatric Urologist, Pediatric Orthopedic Surgeons, Radiologists, Rehabilitation, Pathologists, Pediatric Neurosurgeons, Obstetricians and Fetal Therapists.

Conditions

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Neural Tube Defects Spina Bifida, Open Myelomeningocele Fetal Disease Hydrocephalus Chiari Malformation Type 2 Congenital Abnormality Surgery; Maternal, Uterus or Pelvic Organs, Affecting Fetus

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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Fetoscopic repair of spina bifida

This is a single arm study, all patients will receive a fetoscopic repair of the spina bifida

Group Type EXPERIMENTAL

Fetoscopic repair of spina bifida

Intervention Type PROCEDURE

Fetoscopic intrauterine repair of open spina bifida

Interventions

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Fetoscopic repair of spina bifida

Fetoscopic intrauterine repair of open spina bifida

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Maternal age \> 18 years old
* Singleton pregnancy
* Gestational age between 18 0/7 weeks and 26 6/7 weeks
* Isolated neural tube defect between T1 and S1
* Cerebellar herniation (Chiari type II)

Exclusion Criteria

* Fetal anomalies non related to neural tube defect (NTD) including chromosomal abnormalities
* Body mass index \> 35 kg/m2
* Maternal disorders contraindicating surgery
* Genetic anomalies with poor prognosis
* Sever kyphosis (\>30ยบ)
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Hospital Universitari Vall d'Hebron Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hospital Universitari Vall d'Hebron

Barcelona, , Spain

Site Status RECRUITING

Countries

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Spain

Central Contacts

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Elena Carreras, PhD

Role: CONTACT

Email: [email protected]

Nerea Maiz, PhD

Role: CONTACT

Email: [email protected]

Facility Contacts

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Elena Carreras, PhD

Role: primary

Nerea Maiz, PhD

Role: backup

References

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Maroto A, Illescas T, Melendez M, Arevalo S, Rodo C, Peiro JL, Belfort M, Cuxart A, Carreras E. Ultrasound functional evaluation of fetuses with myelomeningocele: study of the interpretation of results. J Matern Fetal Neonatal Med. 2017 Oct;30(19):2301-2305. doi: 10.1080/14767058.2016.1247262. Epub 2017 Jan 16.

Reference Type BACKGROUND
PMID: 27997256 (View on PubMed)

Belfort MA, Whitehead WE, Shamshirsaz AA, Bateni ZH, Olutoye OO, Olutoye OA, Mann DG, Espinoza J, Williams E, Lee TC, Keswani SG, Ayres N, Cassady CI, Mehollin-Ray AR, Sanz Cortes M, Carreras E, Peiro JL, Ruano R, Cass DL. Fetoscopic Open Neural Tube Defect Repair: Development and Refinement of a Two-Port, Carbon Dioxide Insufflation Technique. Obstet Gynecol. 2017 Apr;129(4):734-743. doi: 10.1097/AOG.0000000000001941.

Reference Type BACKGROUND
PMID: 28277363 (View on PubMed)

Other Identifiers

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PR(AMI)152/2015

Identifier Type: -

Identifier Source: org_study_id