Sealant versus no sealant to prevent CSF leaks after endoscopic endonasal skull base surgery
Official title: The NoSeal Trial - Nasal Outcome Study Evaluating Artificial Leak-Sealing: A Prospective, Randomized, Controlled, Single-Blinded, Single-Center Clinical Trial Comparing Fibrin Glue (Tisseel®) and a Two-Component Synthetic Polymer Sealant (PEI/PEG, Adherus®) Versus No Sealant for the Prevention of Cerebrospinal Fluid Leak and Promotion of Wound Healing Following Endonasal Skull Base Surgery, Designed in Accordance With the SPIRIT 2025 Guidelines
Run by Maria Sklodowska-Curie National Research Institute of Oncology · NCT07216157 · Data updated 2026-11-12
We will try fibrin or synthetic sealants versus no sealant to see if they prevent postoperative CSF leaks in adults having endoscopic endonasal skull base surgery who are judged to be at low risk for leaks.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 225 (estimated) |
| Sponsor | Maria Sklodowska-Curie National Research Institute of Oncology Academic / other |
| Locations | 1 site (Warsaw) |
| Status | Recruiting |
| Started | August 15, 2025 |
| Main results expected | December 30, 2026 |
| Study ends | March 15, 2027 |
| Registry record updated | October 14, 2025 |
| Trial ID | NCT07216157 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 or older scheduled for endoscopic endonasal surgery with standard skull base reconstruction who are hemodynamically stable and perioperatively judged to have a low risk of postoperative CSF leak are ideal candidates.
✕Probably not a fit
Patients undergoing revision or extended endoscopic approaches, those with preoperative hydrocephalus, prior sellar/parasellar radiotherapy, uncontrolled diabetes, active sinus infection, known sealant allergy, or other factors requiring complex reconstruction are unlikely to benefit from this low-risk-focused comparison.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, randomized, controlled, single-center trial at the Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Poland. Adults undergoing standard endoscopic endonasal skull base reconstruction who are perioperatively judged to be at low risk for CSF leak will be randomized preoperatively into one of three arms: multilayer closure without sealant, fibrin sealant application, or a synthetic polyethylene glycol–based sealant. Outcomes will include postoperative CSF leak rates, complications, and resource use with follow-up to capture early leaks and related interventions. The goal is to determine whether routine sealant use provides measurable clinical or economic benefit over no sealant in this low-risk population.
Why it matters
Potential benefit: If successful, the approach could spare low-risk patients unnecessary sealant use, lower costs and procedure complexity, and avoid sealant-related complications without increasing CSF leak rates.
How similar studies have gone: Recent high-quality observational studies and systematic reviews have questioned routine sealant benefit and cost-effectiveness, and this is the first randomized trial directly comparing fibrin and synthetic sealants versus no sealant in low-risk endonasal cases.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 18 years * Scheduled for endoscopic endonasal surgery involving standard skull base reconstruction * Informed written consent obtained prior to enrollment * Hemodynamic and electrolyte stability before surgery * Procedure expected to be completed without use of high-flow intraoperative CSF diversion techniques Exclusion Criteria: * Revision surgery or extended endoscopic approaches requiring complex reconstruction (e.g., clival or cribriform defects) * Tumors requiring complex sella reconstruction from the start * Preoperative hydrocephalus * Known allergy to fibrin-based or synthetic sealant components * Active sinus infection or systemic inflammatory disease * Prior radiotherapy to the sellar or parasellar region * Uncontrolled diabetes mellitus (HbA1c \> 7.0%) * Participation in another interventional trial that may influence wound healing or CSF assessment * Radiologic signs of chronic intracranial hypertension or hypotension
Where it's running
-
Maria Sklodowska-Curie Institute - Oncology Center
Warsaw, Poland Recruiting
Study contacts
- Study coordinator: Wojciech Czyzewski, MD PhD, MD PhD
- Email: wojciech.w.czyzewski@gmail.com
- Phone: +48788599550
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
TachoSil vs DuraSeal for Supporting Dural Sealing in Adults
This retrospective study looks at whether TachoSil works as well as DuraSeal to prevent CSF leaks or pseudomeningoceles after cranial or spinal surgeries in adults.
-
Cerebrospinal fluid leak after brain tumor surgery
This project will look at adults having planned supratentorial craniotomy for intracranial tumors to see how often cerebrospinal fluid leaks occur and what complications they cause.
-
Registry for spontaneous intracranial hypotension and post-dural puncture headache
This study is collecting information from people with spinal fluid leaks to better understand the causes and symptoms of headaches related to spontaneous intracranial hypotension and post-dural puncture headache.
-
Dural Sealant Used After Neurosurgery to Help Ensure Watertight Closure
This registry follows adults who receive Immiseal after neurosurgical dural repair to see how safe and effective it is in real-world use.
-
Comparing two dural sealants for preventing cerebrospinal fluid leaks after brain surgery
This study is testing whether a new sealant called CraniSeal is as good as the existing DuraSeal at preventing leaks of spinal fluid after brain surgery.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.