Clinical trial Recruiting at 1 site Interventional Ages 40 and up

Comparing two surgical treatments for idiopathic normal pressure hydrocephalus

Official title: Endoscopic Third Ventriculostomy Compared to Ventriculoperitoneal Shunt as Treatment for Idiopathic Normal Pressure Hydrocephalus (ENDOVEST): A Randomized Trial

Run by University Hospital, Basel, Switzerland · NCT06488248 · Data updated 2026-11-12

This study is testing whether a new surgical option called endoscopic third ventriculostomy can help older adults with idiopathic normal pressure hydrocephalus feel better, just like the traditional ventriculoperitoneal shunt, but with fewer risks.

More Idiopathic Normal Pressure Hydrocephalus (INPH) trials

Quick facts

Study typeInterventional
Ages40 Years and up
SexAll
Enrollment150 (estimated)
SponsorUniversity Hospital, Basel, Switzerland
Academic / other
Locations1 site (Basel)
StatusRecruiting
StartedJanuary 17, 2025
Main results expectedJuly 1, 2028
Study endsJuly 1, 2028
Registry record updatedFebruary 3, 2025
Trial IDNCT06488248 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals over 40 years old with symptoms of iNPH lasting between 3 to 24 months, including gait disturbances and cognitive impairment.

Probably not a fit

Patients with secondary causes of hydrocephalus, significant neurological conditions, or those unable to provide informed consent may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to compare the effectiveness of two surgical interventions, endoscopic third ventriculostomy (ETV) and ventriculoperitoneal shunt (VPS), in treating idiopathic normal pressure hydrocephalus (iNPH). The study is a single-center, two-arm, open-labeled, randomized controlled trial that focuses on clinical improvement in patients suffering from iNPH. It targets elderly individuals who experience symptoms such as gait disturbances, cognitive decline, and urinary dysfunction. The goal is to determine whether ETV can provide similar symptom relief as VPS while reducing the risk of complications associated with shunt placement.

Why it matters

Potential benefit: If successful, this study could provide a safer surgical option for patients with idiopathic normal pressure hydrocephalus, potentially leading to fewer complications and improved quality of life.

How similar studies have gone: Previous studies have shown that ETV can be effective for certain types of hydrocephalus, but this specific comparison with VPS in iNPH is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \>40 years of age
* Symptom duration ≥3 months, \<24 months
* No antecedent head trauma, ICH, meningitis, or other cause of secondary hydrocephalus
* MUST show gait/balance disturbance, PLUS cognition impairment AND/OR urinary dysfunction.
* Ventricular enlargement (Evans Index \> 0.3) not attributable to cerebral atrophy or congenital enlargement
* No macroscopic obstruction to cerebrospinal fluid (CSF) flow Spinal Tap-Test
* Opening pressure (on lateral decubitus): \<24cmH2O
* Clinical improvement in at least one of the main symptoms after 40-50ml withdrawal of CSF

Exclusion Criteria:

* ≤40 years of age
* No informed consent
* Other neurologic, psychiatric or general medical condition which is sufficient to explain the presenting symptoms.
* Previous cranial neurosurgical interventions
* Other associated dementia syndromes
* Incapacity to walk
* Pregnancy and breastfeeding women

Where it's running

  • Department of Neurosurgery, University Hospital of Basel
    Basel, Switzerland
    Recruiting

Study contacts

  • Principal investigator: Florian Marc Ebel, Dr. med. — Department of Neurosurgery, University Hospital of Basel
  • Study coordinator: Florian Marc Ebel, Dr. med.
  • Email: florianmarc.ebel@usb.ch
  • Phone: +41 61 32 84296

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.