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Recruiting

NCT Number: NCT06649097

Clearance of Intracranial Blood Products by Continuous Irrigation With the IRRAflow System

The study is a multi-center prospective cohort, controlled, phase 4 post-market registry evaluating the efficacy and radiographic outcomes associated with the use of the IRRAflow® Active Fluid Exchange System compared to standard of care external ventricular drains.

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

About this study

The IRRAflow system offers automated irrigation, controlled drainage, and ICP monitoring all in one system for the treatment of intracranial hemorrhage - [Intracerebral hemorrhage (ICH), Intraventricular hemorrhage (IVH), Subarachnoid hemorrhage (SAH), Subdural hematoma (SDH)], intracranial abscess, and ventriculitis.

The analysis of the IRRAS catheter will occur prospectively if it is determined the patient meets the enrollment criteria. All patients enrolled in the trial will receive additional supportive and medical treatment by choice of the treating physician and in accordance with standard of care. Such treatment includes but is not limited to neurointensive care, neuromonitoring, and surgical or endovascular occlusion of identified sources of intracranial hemorrhage (e.g. vascular anomalies, aneurysms, etc.).

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age >=18 years of age
  • Intracranial hemorrhage documented on head CT or MRI scan.
  • Indication for active fluid exchange evaluated by treating physician.
  • Signed informed consent obtained by patient or Legal Authorized Representative
  • Scheduled enrollment and treatment within 72 hours of last known well (LKW)

Exclusion criteria

  • GCS ≤ 5
  • Pregnancy
  • Fixed and dilated pupil
  • Life-threatening medical condition

Treatment and study plan

IRRAflow® CNS (Active Fluid Exchange) System

Device

The IRRAflow system offers automated irrigation, controlled drainage and intracranial pressure (ICP) monitoring all in one system. It consists of three main parts - IRRAflow 2.0 Catheter, IRRAflow Tube Set, IRRAflow Control Unit.

Primary outcomes

  1. Residual blood volume by post bleed day 5

    Time frame: Post-procedure day 5

    The residual blood volume at day 5 will be calculated to determine the efficacy of the IRRAflow system compared to other external ventricular drains (EVDs)

  2. Utility weighted modified Rankin Score

    Time frame: End of study, at 6 months

    Modified Rankin Scale score at 6 months will be collected to determine patient functional outcomes at 6 months. Scores range from 0 to 6, with 0 indicating no disability and 6 indicating death

Secondary outcomes

  1. Rate of blood clearance

    Time frame: Immediately before and after the procedure

    Rate of blood clearance will be calculated based on pre- and post-procedure blood volumes

  2. Direct hospitalization costs

    Time frame: Discharge, up to 7 days post procedure

    Direct hospitalization costs will be determined based on the hospital-reported cost of care for the entirety of the patient's hospital stay

  3. NSICU Length of Stay

    Time frame: Discharge, up to 7 days post procedure

    Hospital quality metrics will include length of neonatal surgery intensive care unit (NSICU) stay in days

  4. Hospital Length of Stay (LOS)

    Time frame: Discharge, up to 7 days post procedure

    Hospital quality metrics will include length of hospital stay in days

  5. Proportion of participants needing a shunt

    Time frame: Discharge, up to 7 days post procedure

    Proportion of participants needing a shunt will be calculated to determine how many patients needed a shunt to treat their hydrocephalus

Study contacts

Contact information is provided by the study sponsor or research team.

Sukaina Davdani

CONTACT

[email protected]

(212) 241-2524

Sydney Edwards

CONTACT

[email protected]

(212) 241-2524

Sponsors and collaborators

Lead sponsor

Christopher P Kellner

Other

Collaborators

  • IRRAS

Registry information

Acronym: CRYSTAL

Important dates

Study start
2025
Primary completion
2031
Study completion
2031
First posted
Oct 18, 2024
Registry last updated
Oct 28, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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