NCT06541275

Brief Summary

The goal of this observational study is to learn about the long-term effects of combined endovascular interventions in participants over the age of 18 who take endovascular interventions employing endoluminal flow diverter stents, with or without coils, and a hybrid approach of combining bypass anastomosis and parent artery occlusion using the endovascular method to treat their giant symptomatic intracranial aneurysms. The main question it aims to answer is: • How does the methods of endovascular intervention chosen affect the value of the aneurysmal sac shrinkage and volume reduction? Participants underwent endovascular intervention at the hospital will be recruited with further follow-up of 6, 12, and 24 months.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
102

participants targeted

Target at P50-P75 for all trials

Timeline
7mo left

Started Jul 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress76%
Jul 2024Dec 2026

Study Start

First participant enrolled

July 17, 2024

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

August 2, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 7, 2024

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2025

Completed
1.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Expected
Last Updated

August 9, 2024

Status Verified

August 1, 2024

Enrollment Period

11 months

First QC Date

August 2, 2024

Last Update Submit

August 7, 2024

Conditions

Keywords

brain aneurysmendovascular flow divertersneurovascular

Outcome Measures

Primary Outcomes (1)

  • A value of the aneurysmal sac shrinkage and volume reduction

    A detailed analysis and interpretation of the results obtained from selective cerebral angiography and MRA post-surgery at 6, 12, and 24 months will be performed on participants who underwent endovascular interventions for giant symptomatic brain aneurysms. The analysis will assess the dynamic volume reduction and sac shrinkage.

    From enrollment to the further follow-up of 6, 12, and 24 months.

Interventions

brain MRI and CTDIAGNOSTIC_TEST

The diagnostic tests will be conducted at 6, 12, and 24 months of follow-up.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Study population involves participants who were treated at the Vascular and Functional Neurosurgery Department of the National Centre for Neurosurgery in Astana, Kazahstan.

You may qualify if:

  • Participants aged 18 years and older;
  • Participants with large and giant intracranial aneurysms and underwent endovascular interventions within the last 5 years (2019-2023).

You may not qualify if:

  • Participants under the age of 18;
  • Participants with small intracranial aneurysms in the anamnesis and underwent microsurgery.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Centre for Neurosurgery

Astana, 010000, Kazakhstan

Location

Related Publications (10)

  • Pasqui E, de Donato G, Molino C, Abu Leil M, Anzaldi MG, Galzerano G, Palasciano G. Residual Aneurysmal Sac Shrinkage Post-Endovascular Aneurysm Repair: The Role of Preoperative Inflammatory Markers. Biomedicines. 2023 Jul 6;11(7):1920. doi: 10.3390/biomedicines11071920.

  • Mitsui T, Nakagawa I, Kotsugi M, Park H, Yokoyama S, Myouchin K, Nakase H. Remarkable shrinkage of a thrombosed giant aneurysm by stent-assisted jam-packed coil embolization. Surg Neurol Int. 2021 Jul 6;12:328. doi: 10.25259/SNI_511_2021. eCollection 2021.

  • Akiyama R, Ishii A, Kikuchi T, Okawa M, Yamao Y, Abekura Y, Ono I, Sasaki N, Tsuji H, Matsukawa S, Miyamoto S. Predictors of aneurysm shrinkage after flow diversion treatment for internal carotid artery aneurysms: quantitative volume analysis with MRI. Front Neurol. 2023 Dec 21;14:1266460. doi: 10.3389/fneur.2023.1266460. eCollection 2023.

  • Makhambetov Y, Kaliyev A, Kikuta KI, Smagulov F, Medetov Y, Kulmirzayev M, Kerimbayev T, Kissamedenov N, Tursynkhan A, Doskaliyev A, Akshulakov S. Early and midterm results of treatment of giant internal carotid artery paraclinoid aneurysms with trapping and flow diverters. Acta Neurochir (Wien). 2019 Sep;161(9):1755-1761. doi: 10.1007/s00701-019-04002-3. Epub 2019 Jul 15.

  • Kaliyev A, Makhambetov Y, Medetov Y, Kulmirzayev M, Dusembayev S, Nurimanov C, Kunakbayev B, Akshulakov S. Management of giant internal carotid aneurysm by extracranial-intracranial bypass and flow diverter stent. Br J Neurosurg. 2023 Dec;37(6):1893-1897. doi: 10.1080/02688697.2021.1947974. Epub 2021 Jul 8.

  • Dutta G, Singh D, Jagetia A, Srivastava AK, Singh H, Kumar A. Endovascular management of large and giant intracranial aneurysms: Experience from a tertiary care neurosurgery institute in India. J Cerebrovasc Endovasc Neurosurg. 2021 Jun;23(2):99-107. doi: 10.7461/jcen.2021.E2020.08.008. Epub 2021 May 17.

  • Lawton MT, Spetzler RF. Surgical management of giant intracranial aneurysms: experience with 171 patients. Clin Neurosurg. 1995;42:245-66.

  • Moon E, Park W, Song Y, Lee DH, Ahn JS, Park JC. Mass Effect After Flow Diversion for Unruptured Large and Giant Cavernous or Paraclinoid Internal Carotid Artery Aneurysm. World Neurosurg. 2023 Dec;180:e108-e116. doi: 10.1016/j.wneu.2023.08.129. Epub 2023 Sep 9.

  • Lonjon M, Pennes F, Sedat J, Bataille B. Epidemiology, genetic, natural history and clinical presentation of giant cerebral aneurysms. Neurochirurgie. 2015 Dec;61(6):361-5. doi: 10.1016/j.neuchi.2015.08.003. Epub 2015 Dec 1.

  • Cagnazzo F, Mantilla D, Rouchaud A, Brinjikji W, Lefevre PH, Dargazanli C, Gascou G, Riquelme C, Perrini P, di Carlo D, Bonafe A, Costalat V. Endovascular Treatment of Very Large and Giant Intracranial Aneurysms: Comparison between Reconstructive and Deconstructive Techniques-A Meta-Analysis. AJNR Am J Neuroradiol. 2018 May;39(5):852-858. doi: 10.3174/ajnr.A5591. Epub 2018 Mar 15.

MeSH Terms

Conditions

Intracranial Aneurysm

Condition Hierarchy (Ancestors)

Intracranial Arterial DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesAneurysmVascular DiseasesCardiovascular Diseases

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of the Hospital Management Department

Study Record Dates

First Submitted

August 2, 2024

First Posted

August 7, 2024

Study Start

July 17, 2024

Primary Completion

June 1, 2025

Study Completion (Estimated)

December 1, 2026

Last Updated

August 9, 2024

Record last verified: 2024-08

Locations