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RecruitingNCT06724029NEONUpdated Mar 30, 2026

Neurosurgical Outcome Network

An observational study in Aneurysms, Arteriovenous Malformations and Cavernomas, sponsored by Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta. Recruiting at 27 sites in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-30.

Sponsored by Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta · Observational

From the registry’s dates

  • Started Dec 2022; still recruiting 3 years 11 months later.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
4,500
Ages
18 Years and older
Sex
All
01

Study summary

The evaluation of neurosurgical outcomes varies from center to center, and the predictive factors that determine these outcomes are not fully known or shared. This study aims to assess outcomes and their predictors using measures agreed upon by the participating centers. Standardizing the evaluation of outcomes and predictors improves the quality of research, allows for data comparison, and facilitates a "common language" in routine clinical practice. Most importantly, it influences therapeutic decisions in various neurosurgical conditions. Clinically, the identified predictors can also be used during preoperative assessments to provide more precise guidance to patients undergoing surgery.

Read the detailed description

The evaluation of outcome indicators, quality of life, and complexity in Neurosurgery has gained significant importance not only at a clinical and therapeutic level but also as a tool to assess the effectiveness and efficiency of the healthcare system. This study aims to evaluate neurosurgical outcomes and their predictors using measures shared among participating centers. Such evaluation varies from center to center, and the predictive factors are not entirely known or shared. Standardizing the evaluation of outcomes and predictors improves research quality, enables data comparison, and fosters a common language in everyday clinical practice. Most importantly, it influences therapeutic decisions in various neurosurgical pathologies.

Primary Objective: Collect and describe the pre- and postoperative clinical, cognitive, and psychological status in various neurosurgical pathologies.

Secondary Objectives: Identify outcome predictors. Primary Endpoint: Description of pre- and postoperative clinical, cognitive, and psychological data of patients undergoing neurosurgical intervention.

Secondary Endpoints: Analyze the association between preoperative indicators collected and postoperative outcomes. Specific predictors and outcome measures for each neurosurgical pathology will be considered and reported in Appendix 1. Patient enrollment from Neurosurgery Departments; collection of clinical, cognitive, and psychological data before the intervention and during follow-up after the intervention (timing varies depending on the neurosurgical pathology); data analysis through AI. For all neurosurgical pathologies, the following data will be collected: sociodemographic, clinical (Charlson Comorbidity Index, heart disease, diabetes, Chronic Obstructive Pulmonary Disease, hypertension, Body Mass Index, smoking, psychiatric pathology, admission date, intervention date, discharge date, Modified Rankin Scale, American Society of Anesthesiologists, weight, height), anesthesiological (collected only by FINCB), and complication-related data (Novel Therapy-Disability-Neurology).

02

Conditions studied

  • Aneurysms
  • Arteriovenous Malformations
  • Cavernomas
  • Skull Base Tumors
  • Moyamoya Disease
  • Dural Fistulas
  • Subdural Hematoma
  • Extradural Hematoma
  • Subarachnoid Hemorrhage
  • Hydrocephalus
  • Parkinson&Amp;#39;s Disease
  • Spasticity
  • Trigeminal Neuralgia
  • Craniofacial Pain
  • Neuropathic Pain
  • Tremor
  • Dystonias
  • Obsessive-compulsive Disorder
  • Drug-resistant Epilepsy
  • Depression
  • Normal Pressure Hydrocephalus
  • Tumors of Peripheral Nerves
  • Chiari Malformation Type 1

Keywords

  • Neurosurgery Outcome Artificial Intelligence predictors
03

In context

Aneurysm

381 studies on the registry are indexed under Aneurysm; 78 are open to participants now.

This study's planned enrollment of 4,500 is above the median of 157 across 132 observational studies indexed under Aneurysm.

Browse Aneurysm studies →

Lead sponsor

Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta is the lead sponsor of 84 studies on the registry; 32 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients older than 18 years old, with neurosurgical pathology

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Neuro-oncological pathology: supratentorial and subtentorial tumors, intra and extra axial tumors excluding the skull base (anterior, middle and posterior fossa; sellar and parasellar region)
  • Basicranial pathology: tumors originating from the anterior cranial fossa, middle cranial fossa and posterior cranial fossa, sellar region with or without supratentorial/parasellar development.
  • Vascular pathology: aneurysms, AVMs, cavernomas, other pathologies (Moyamoya disease, dural fistulas, nontraumatic hematomas)
  • Traumatic pathology: diffuse damage (nonvisible diffuse damage, diffuse damage, diffuse damage with edema, diffuse damage with shift) and focal damage (acute/subacute/chronic subdural hematoma, extradural hematoma, subarachnoid hemorrhage, intraparenchymal hematoma, fractures); hydrocephalus. The inclusion criterion for chronic subdural hematoma is recent bleeding for TBI with CT finding of chronic subdural hematoma candidate for evacuation surgery.
  • Spinal pathology: degenerative cervical (anterior/posterior), myelopathic, and trauma pathology; instrumented, uninstrumented thoracolumbar pathology (disc pathology, canal pathology), and trauma pathology; oncologic spinal pathology.
  • Functional pathology: Parkinson's disease, spasticity, trigeminal neuralgia, craniofacial pain/algia, neuropathic pain, tremor, dystonias, obsessive compulsive disorder, drug-resistant epilepsies, depression. Normotensive hydrocephalus.
  • Peripheral nervous system pathology: peripheral nerve compression syndromes, peripheral nerve and plexus tumors, brachial plexus and peripheral nerve trauma (contusion and section)
  • Malformative pathology: Chiari malformation type 1 and craniostenoses including both those framed in malformative syndromes and those not framed in malformative syndromes (monosutural craniostenoses: trigonocephaly, plagiocephaly, scaphocephaly; multisutural craniostenoses). Malformative hydrocephalus.
  • For cognitive and psychological assessment: age 18 years or older; adequate understanding of Italian language; diagnosis of glioma, meningioma, vascular pathology, spinal pathology

Exclusion criteria

Exclusion Criteria:

  • For cognitive and psychological assessment: patients with psychiatric diseases in history and/or taking psychotropic drugs; presence of overt cognitive decline (not due to the injury) in history; patients younger than 18 years old.
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Study design

Observational model
Other
Time perspective
Prospective
Enrollment
4,500 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Collect data

    Collect and describe the pre- and postoperative clinical status in various neurosurgical pathologies.

    Time frame: 5 years

  2. Collection data

    Collect and describe the pre- and postoperative cognitive status in various neurosurgical pathologies.

    Time frame: 5 years

  3. Collection data

    Collect and describe the pre- and postoperative psychological status in various neurosurgical pathologies.

    Time frame: 5 years

Secondary outcomes

  1. Identify Predictors

    Identify outcome predictors.

    Time frame: 1 year

07

Study locations

11 of 27 sites recruiting
  • 1. ASST Papa Giovanni XXIII
    Bergamo, BG 24127, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Spedali Civili Brescia
    Brescia, BS 25123, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Fondazione Poliambulanza Istituto Ospedaliero
    Brescia, BS 25124, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Ospedale Moriggia Pelascini
    Gravedona, Como 22015, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASST Lariana, Ospedale S. Anna
    Como, CO 22100, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASST Cremona
    Cremona, CR 26100, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Fondazione IRCCS San Gerardo dei Tintori
    Monza, MB 20900, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Fondazione IRCCS Policlinico San Matteo
    Pavia, PV 27100, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASST della Valtellina ed Alto Lario
    Sondrio, SO 23100, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Azienda Ospedaliero Universitaria Policlinico "G. Rodolico - San Marco"
    Catania, Italy
    Recruiting
  • Azienda Ospedaliero Universitaria Careggi
    Florence, Italy
    Recruiting
  • Ospedale F. Spaziani di Frosinone
    Frosinone, 03100, Italy
    Recruiting
  • Ospedale Alessandro Manzoni
    Lecco, 23900, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASST Ovest Milanese
    Legnano, 20025, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Ospedali Riuniti di Livorno -Azienda USL Toscana nord ovest
    Livorno, Italy
    Recruiting
  • Fondazione IRCCS Istituto Neurologico Carlo Besta
    Milan, 20133, Italy
    Recruiting
  • Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico
    Milan, 20122, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASST Santi Paolo e Carlo
    Milan, 20153, Italy
    Recruiting
  • ASST Fatebenefratelli Sacco
    Milan, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Istituto Clinico Città Studi
    Milan, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Policlinico di Monza
    Monza, 20900, Italy
    Recruiting
  • A.R.N.A.S. Ospedali Civico di Palermo
    Palermo, 90127, Italy
    Recruiting
  • Azienda Ospedaliero Universitaria di Parma
    Parma, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • ASL Roma 1
    Roma, 00135, Italy
    Recruiting
  • Fondazione Policlinico Universitario Gemelli di Roma
    Roma, 00168, Italy
    Recruiting
  • IRCCS Istituto Clinico Humanitas
    Rozzano, 20089, Italy
    Active, not recruiting

    Not enrolling at this site — choose another above.

  • Azienda Sanitaria Universitaria Friuli Centrale di Udine
    Udine, 33100, Italy
    Recruiting
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References and documents

Publications

  • Terrapon APR, Zattra CM, Voglis S, Velz J, Vasella F, Akeret K, Held U, Schiavolin S, Bozinov O, Ferroli P, Broggi M, Sarnthein J, Regli L, Neidert MC. Adverse Events in Neurosurgery: The Novel Therapy-Disability-Neurology Grade. Neurosurgery. 2021 Jul 15;89(2):236-245. doi: 10.1093/neuros/nyab121. PubMed 33887774 ↗
  • RANKIN J. Cerebral vascular accidents in patients over the age of 60. II. Prognosis. Scott Med J. 1957 May;2(5):200-15. doi: 10.1177/003693305700200504. No abstract available. PubMed 13432835 ↗
  • Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis. 1987;40(5):373-83. doi: 10.1016/0021-9681(87)90171-8. PubMed 3558716 ↗
  • Grinnon ST, Miller K, Marler JR, Lu Y, Stout A, Odenkirchen J, Kunitz S. National Institute of Neurological Disorders and Stroke Common Data Element Project - approach and methods. Clin Trials. 2012 Jun;9(3):322-9. doi: 10.1177/1740774512438980. Epub 2012 Feb 27. PubMed 22371630 ↗
  • Jakola AS, Unsgard G, Solheim O. Quality of life in patients with intracranial gliomas: the impact of modern image-guided surgery. J Neurosurg. 2011 Jun;114(6):1622-30. doi: 10.3171/2011.1.JNS101657. Epub 2011 Feb 11. PubMed 21314270 ↗
  • Sagberg LM, Drewes C, Jakola AS, Solheim O. Accuracy of operating neurosurgeons' prediction of functional levels after intracranial tumor surgery. J Neurosurg. 2017 Apr;126(4):1173-1180. doi: 10.3171/2016.3.JNS152927. Epub 2016 Jun 17. PubMed 27315026 ↗
  • Weldring T, Smith SM. Patient-Reported Outcomes (PROs) and Patient-Reported Outcome Measures (PROMs). Health Serv Insights. 2013 Aug 4;6:61-8. doi: 10.4137/HSI.S11093. eCollection 2013. PubMed 25114561 ↗
  • Tomlinson SB, Piper K, Kimmell KT, Vates GE. Preoperative Frailty Score for 30-Day Morbidity and Mortality After Cranial Neurosurgery. World Neurosurg. 2017 Nov;107:959-965. doi: 10.1016/j.wneu.2017.07.081. Epub 2017 Jul 20. PubMed 28736345 ↗
  • Reponen E, Tuominen H, Korja M. Evidence for the use of preoperative risk assessment scores in elective cranial neurosurgery: a systematic review of the literature. Anesth Analg. 2014 Aug;119(2):420-432. doi: 10.1213/ANE.0000000000000234. PubMed 25046789 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2022 (actual). Primary completion is estimated for Jun 2027, 54 months after the start.

Of 69 observational studies under Aneurysm, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 33 and three quarters within 67. This study's planned 54 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 2, 2024
First posted
Dec 9, 2024
StartActual
Dec 5, 2022
Primary completionEst.
Jun 2027
CompletionEst.
Jun 2027
Last update
Mar 30, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06724029
Lead sponsor
Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta
Responsible party
Sponsor
First posted
Dec 9, 2024
Start date
Dec 5, 2022
Primary completion
Jun 2027 (estimated)
Completion
Jun 2027 (estimated)
Last update
Mar 30, 2026

Study contacts

Paolo Ferroli, MD
Contact
paolo.ferroli@istituto-besta.it
+39 02 2394 2411 ext. 2411
Morgan A Broggi, MD
Contact
morgan.broggi@istituto-besta.it
+39 02 2394 2411 ext. 2411

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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