Using curved and straight fetoscopes for in-utero surgery

A Prospective Study on the Efficacy of the Karl Storz Curved Fetoscope (11508aak) and Its Straight Version (11506akk) for In-utero Surgery

Not applicable Interventional The University of Texas Health Science Center, Houston · NCT06425471

This study is testing whether using a curved fetoscope for in-utero surgeries can lead to better outcomes for fetuses and newborns compared to using a straight fetoscope or no fetoscope at all.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 45 Years
SexFemale
SponsorThe University of Texas Health Science Center, Houston Academic / other
Locations1 site (Houston, Texas)
Trial IDNCT06425471 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effectiveness of the KARL STORZ curved fetoscope and its straight version for performing in-utero surgeries. It will prospectively compare outcomes from patients undergoing these procedures with the fetoscopes to historical control data from patients who had similar surgeries without the use of these instruments. The goal is to determine if the curved fetoscope improves surgical outcomes for fetuses and newborns.

Who should consider this trial

Good fit: Ideal candidates for this study are pregnant women who meet the criteria for in-utero surgery based on their specific medical conditions.

Not a fit: Patients who may not benefit from this study include those with contraindications to surgery, significant fetal anomalies, or maternal health issues that complicate the procedure.

Why it matters

Potential benefit: If successful, this study could enhance the safety and efficacy of in-utero surgeries, potentially improving outcomes for affected fetuses and newborns.

How similar studies have performed: While this approach is innovative, it is based on historical data, and similar studies have not been widely reported, making this a potentially novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant woman
* The patient fulfills the criteria for in-utero surgery based on the standard of care, which is specific for each condition
* Patient of the baby provides signed informed consent that details the maternal and fetal risks involved with the procedure

Exclusion Criteria:

* Contraindication to abdominal surgery, fetoscopic surgery, or general anesthesia
* Allergy or previous adverse reaction to a study medication specified in this protocol
* Preterm labor, preeclampsia, or a uterine anomaly (e.g., large fibroid tumor) that is unavoidable during surgery in the index pregnancy
* Fetal aneuploidy, genomic variants of known significance if an amniocentesis has been performed, other major fetal anomalies or disorders that may impact the fetal/neonatal survival, or a known syndromic mutation
* Suspicion of a major recognized syndrome by ultrasound or MRI
* Maternal BMI \>40 kg/m2
* High risk for fetal hemophilia

Where this trial is running

Houston, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions In Utero Procedure Affecting Fetus or Newborn
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.