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Fetální oprava komplexní gastroschízy: Test bezpečnosti a proveditelnosti

4. listopadu 2026 aktualizováno: Sundeep Keswani, Baylor College of Medicine

The goal of this clinical trial is to evaluate the safety and feasibility of fetal repair of complex gastroschisis (GS) via a fetoscopic surgical approach by assessing maternal, fetal, neonatal, and infant outcomes in a cohort of 10 patients. The hypothesis is that in utero repair of GS will reduce postnatal mortality and morbidity in complex GS infants with minimal maternal and fetal risk.

Přehled studie

Postavení

Nábor

Podmínky

Intervence / Léčba

Detailní popis

Gastroschisis is a congenital abdominal wall defect by which the intestinal structures eviscerate from the abdomen, with a current prevalence of 4.9 per 10,000 pregnancies in the United States. Not only is it the most common abdominal wall defect, but the incidence of GS has increased by nearly 30% in the US (Jones et al., 2016) and 25 % in Europe (EUROCAT, 2021) between 2006 and 2012 for reasons that are still unknown. Two subtypes of the disease have been identified - simple and complex GS. Simple GS presents as an otherwise healthy bowel that may have an inflammatory peel over the bowel surface. By contrast, complex GS is characterized by serious bowel complications, such as bowel volvulus, atresia, stenosis, necrosis, and perforation.

Participants will be offered the minimally invasive in-utero repair technique as an alternative to the traditional standard postnatal GS surgical repair. To try to help relax the abdominal wall muscles, fetuses enrolled in the trial will receive botulinum toxin type A (Botox) injections one to two weeks before the fetoscopic surgery to repair the defect. During surgery, the mother's uterus is opened using the standard laparotomy approach that we currently use in our open fetal surgeries and fetoscopic spina bifida repair through an exteriorized uterus, and then fetal surgeons repair the fetus' defect. The uterus is closed, and the pregnancy continues. When babies are treated in this way, they may be less likely to be born with their intestines coming out of their belly and if this is the case, they may be less likely to have other problems that occur with gastroschisis because the intestines are not covered.

All participants will be closely followed with ultrasound and consultation after the surgery. Delivery will be scheduled at Texas Children's Hospital, and the infants will be followed for 12 months by our research team.

Typ studie

Intervenční

Zápis (Odhadovaný)

10

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

  • Jméno: Becky Johnson
  • Telefonní číslo: 832-826-7451
  • E-mail: rj2@bcm.edu

Studijní záloha kontaktů

Studijní místa

    • Texas
      • Houston, Texas, Spojené státy, 77030
        • Nábor
        • Texas Children's Hospital
        • Dílčí vyšetřovatel:
          • Roopali Donepudi, MD
        • Kontakt:
          • Becky Johnson
          • Telefonní číslo: 832-826-7451
          • E-mail: rj2@bcm.edu
        • Dílčí vyšetřovatel:
          • Luc Joyeux, MD, PhD
        • Kontakt:
        • Dílčí vyšetřovatel:
          • Michael A Belfort, MD, PhD
        • Dílčí vyšetřovatel:
          • Larry Hollier Jr., MD
        • Dílčí vyšetřovatel:
          • Timothy Lee, MD
        • Dílčí vyšetřovatel:
          • Alice King, MD
        • Dílčí vyšetřovatel:
          • Magdalena Sanz Cortes, MD, PhD
        • Dílčí vyšetřovatel:
          • Ahmed Nassr, MD, PhD
        • Dílčí vyšetřovatel:
          • Jonathan Castillo Porter, MD, MPH
        • Dílčí vyšetřovatel:
          • Caitlin Sutton, MD
        • Vrchní vyšetřovatel:
          • Sundeep Keswani, MD
        • Dílčí vyšetřovatel:
          • Becky Johnson, MS, CCRP

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Ženský

Popis

Inclusion Criteria:

  1. Pregnant women - maternal age 18 years or older and capable of consenting for her own participation in this study

  2. Singleton pregnancy

  3. Sonographic evidence of gastroschisis (exteriorization of bowel content outside the fetal abdominal cavity into the amniotic cavity)

  4. Intraabdominal bowel dilation ≥ 8 mm at 20-24 weeks GA reviewed by prenatal ultrasound

  5. Absence of significant associated anomalies* diagnosed on prenatal ultrasound or MRI

  6. Gestational age at the time of the procedure will be between 20 0/7 weeks and 27 6/7 weeks

  7. Absence of chromosomal and clinically significant abnormalities, i.e., normal karyotype and/or normal chromosomal microarray (CMA) by invasive testing (amniocentesis or Chorionic Villus Sampling (CVS)). If there is a balanced translocation with normal CMA with no other anomalies the candidate can be included. Results by fluorescence in situ hybridization (FISH) will be accepted, if the candidate's gestation age is ≥ 22 0/7 weeks. Patients declining invasive testing will be excluded

  8. The family has considered and declined the option of termination of the pregnancy at less than 24 weeks and of standard postnatal treatment

  9. The family meets psychosocial criteria (sufficient social support, ability to understand the requirements of the study)

  10. Parental/guardian permission (informed consent) for follow up of the child after birth

    • Significant associated anomalies are defined as such anomalies that would, in and of themselves, be life limiting or life threatening. A minor anomaly, such as a small VSD or ASD not deemed to be life limiting or threatening, or a cleft lip or other such anomaly, unless part of a genetic syndrome, will not disqualify the patient.

Exclusion Criteria:

  1. Significant fetal anomaly unrelated to gastroschisis
  2. Evidence of bowel perforation (presence of intraabdominal bowel calcification on ultrasonography)
  3. Increased risk for preterm labor including short cervical length (≤ 2.0 cm), history of incompetent cervix with or without cerclage, and previous preterm birth in a singleton pregnancy (other than a patient delivered for a non-repeating medical or surgical indication)
  4. Placental abnormalities (previa, abruption, accreta) known at time of enrollment
  5. Pre-pregnancy body-mass index (BMI) ≥40
  6. Contraindications to surgery including previous hysterotomy (whether from a previous classical cesarean, uterine anomaly such as an arcuate or bicornuate uterus, major myomectomy resection, or previous fetal surgery) in active uterine segment
  7. Technical limitations precluding fetoscopic surgery, such as extensive uterine fibroids, fetal membrane separation, or uterine anomalies
  8. Maternal-fetal Rh alloimmunization, Kell sensitization, or neonatal alloimmune thrombocytopenia affecting the current pregnancy.
  9. 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
  10. Maternal medical condition that is a contraindication to surgery or general anesthesia
  11. Low amniotic fluid volume (Amniotic Fluid Index less than 6 cm) if deemed to be due to fetal anomaly, poor placental perfusion or function, or membrane rupture. Low amniotic fluid volume that responds to maternal hydration is not an exclusion criterion
  12. Patient does not have a support person (i.e., spouse, partner, or mother) available to support her for the duration of the pregnancy
  13. Inability to comply with the travel and follow-up requirements of the trial
  14. Patient scores as severely depressed on the Edinburgh Postnatal Depression Scale (EPDS)
  15. Patients that are enrolled or have been enrolled in any another intervention study that affects the mother or fetus
  16. Maternal hypersensitivity to any of the entities associated w/ AlloDerm™. The use of AlloDerm™ Regenerative Tissue Matrix distributed by Allergan Aesthetics is contraindicated for patients sensitive to any of the antibiotics listed on the AlloDerm package, i.e., Gentamycin, Cefoxitin, Lincomycin, Polymyxin B and Vancomycin or Polysorbate 20

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Proveditelnost zařízení
  • Přidělení: N/A
  • Intervenční model: Přiřazení jedné skupiny
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: fetoscopic surgical repair

Single arm study. All patients will receive the fetoscopic repair.

The fetoscopic arm is described above. All patients will have a laparotomy, exteriorization of the uterus, and a fetoscopic repair of the gastroschisis.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Successful Repair of Complex Gastroschisis
Časové okno: At end of surgical repair

Success of primary skin closure after complete bowel reduction.

At end of surgical repair

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Intrauterine Fetal Death (IUFD)
Časové okno: At delivery

Demise of fetus while still in the womb

At delivery
Preterm Birth
Časové okno: At delivery

Number of patients that deliver at < 37 weeks gestation

At delivery
Time to initiation of enteral feeds (days)
Časové okno: At hospital discharge, an average of 1.5 months

The number of days until initiation of enteral feeding

At hospital discharge, an average of 1.5 months
Time on total parenteral nutrition (TPN) (days)
Časové okno: At hospital discharge, an average of 1.5 months

The number of days on total parenteral nutrition (TPN)

At hospital discharge, an average of 1.5 months
Necrotizing Enterocolitis
Časové okno: At hospital discharge, an average of 1.5 months

As measured by presence in medical record

At hospital discharge, an average of 1.5 months
Short Bowel Syndrome
Časové okno: At hospital discharge, an average of 1.5 months

As measured by presence in medical record

At hospital discharge, an average of 1.5 months
Length of Hospital Stay
Časové okno: At the time of discharge from the NICU, an average of 1.5 months

Length of stay in the hospital measured in days

At the time of discharge from the NICU, an average of 1.5 months
Intracranial hemorrhage
Časové okno: During first month of life

Measured as presence in neonate during first month by MRI and/or ultrasound.

During first month of life
Retinopathy of Prematurity
Časové okno: At the time of discharge from the NICU, an average of 1.5 months

Postnatal grade classification presence of grade III or higher using standardized system (yes/no)

At the time of discharge from the NICU, an average of 1.5 months
Respiratory Distress Syndrome
Časové okno: At the time of discharge from the NICU, an average of 1.5 months

As measured by presence in medical record

At the time of discharge from the NICU, an average of 1.5 months
Bronchopulmonary Dysplasia
Časové okno: At the time of discharge from the NICU, an average of 1.5 months

As measured by presence in medical record

At the time of discharge from the NICU, an average of 1.5 months
Need for Gastroschisis related surgery
Časové okno: 12 months of age

As measured by presence in medical record ≤12 months

12 months of age
Small Bowel Obstruction
Časové okno: 12 months of age

As measured by presence in medical record ≤12 months

12 months of age
Central Line Associated Bloodstream Infection (CLABSI)
Časové okno: 12 months of age

As measured by presence in medical record ≤12 months

12 months of age
Neuro-developmental Outcome at 12 months
Časové okno: 12 months of age

As measured by the Capute Scales at 12 months

12 months of age
Survival at 12 months
Časové okno: 12 months of age

Number of patients alive at 12 months of age

12 months of age

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

20. října 2023

Primární dokončení (Odhadovaný)

1. prosince 2029

Dokončení studie (Odhadovaný)

1. prosince 2029

Termíny zápisu do studia

První předloženo

3. ledna 2023

První předloženo, které splnilo kritéria kontroly kvality

20. ledna 2023

První zveřejněno (Aktuální)

30. ledna 2023

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

6. listopadu 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

4. listopadu 2026

Naposledy ověřeno

1. listopadu 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • H-51929

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ano

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