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Dissecting Aneurysm of Cerebral ArteryVBDAs ChinaNCT06541106

Registry of Endovascular Treatment for Vertebrobasilar Dissecting Aneurysms in China

An observational study of Dissecting Aneurysm of Cerebral Artery, run by Beijing Tiantan Hospital at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The incidence of vertebrobasilar dissecting aneurysms (VBDAs) is about 1/100,000~1.5/100,000, and it is one of the most important causes of stroke in young and middle-aged people. In recent years, with the development of medical imaging technology, the detection rate of this disease has been increasing year by year. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Dissecting Aneurysm of Cerebral Artery
What is being tested?
Multi-disciplinary assessment
How many people
2,000 participants
Where
1 siteChina
Study dates
1 Jan 2011to 1 Jan 2032
How long will I take part?
3 Years
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients diagnosis of "unruptured vertebrobasilar dissecting aneurysm".

Who may be able to join

  • Age 18-80 years old;
  • Patients diagnosis of "unruptured vertebrobasilar dissecting aneurysm".

Who cannot join

  • Patients did not undergo a cranial MRI;
  • Missing critical clinical baseline;
  • Missing pre-treatment imaging;
  • Receiving microsurgery;
  • The combination of other serious diseases during diagnosis will significantly affect the follow-up of patients;
  • CT/MRI shows intracranial hemorrhage or subarachnoid hemorrhage (SWI microbleeds are ignored).

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Linggen Dong, MD contact

+8613701376177

donglinggen@163.com

Ming Lv, Ph D. contact

+8618844738529

dragontiger@163.com

China1 site, 1 recruiting
  • Beijing Tiantan Hospital

    Beijing, Beijing Municipality, 100010

    Ming Lv, MD,PhD, +8613701376177, dragontiger@163.com

    Linggen Dong, MD, +8618844738529, donglinggen@163.com

    Recruiting

Other trials in China

About this study

The incidence of vertebrobasilar dissecting aneurysms (VBDAs) is about 1/100,000~1.5/100,000, and it is one of the most important causes of stroke in young and middle-aged people. In recent years, with the development of medical imaging technology, the detection rate of this disease has been increasing year by year. The natural prognosis of VBDAs is complex and varied, with uncertainty: (1) it may have a benign course, and the imaging follow-up may show that the diseased vessels are repaired and improved or remain stable for a long period of time; (2) it may present with ischemic stroke caused by hemodynamic alteration or thromboembolism, which may result in severe neurological impairment; (3) it may occur as a result of rupture of aneurysms leading to subarachnoid hemorrhage, endangering the patient's life; (4) progressive enlargement of VBDAs causing occupying effects, which may be manifested as headache in mild cases, or hemiplegia of limbs and choking on drinking water in severe cases. Up to now, there is a lack of objective and uniform diagnostic and therapeutic guidelines for the natural regression of VBDAs and the benefits of surgery, and the treatment is mostly empirical, which makes it difficult to accurately determine the clinical prognosis of VBDAs and formulate appropriate treatment strategies.

Therefore, against the above background, we designed the present study. This study was a multicenter, prospective, registry study. We enrolled patients with unruptured VBDAs who met the inclusion and exclusion criteria, and a multi-disciplinary team formulated the treatment modalities for the patients, which were categorized into the conservative observation group, the stent-assisted coiling group, and the flow diverter group. The aim of our study was to investigate the effects of different treatment modalities on the prognosis of patients with VBDAs, as well as to stratify the risk factors of the patients, to explore the individualized treatment modalities of the patients, and to improve the diagnosis and treatment of this clinically refractory cerebrovascular disease.

Being tested
Multi-disciplinary assessment
Keywords
Vertebrobasilar dissecting aneurysms, Endovascular treatment, Prognosis, Hemorrhagic stroke
Medical subject headings
Hemorrhagic Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Multi-disciplinary assessmentOther

    1. Comprehensive evaluation was performed by multi-disciplinary experts to assess the prognosis of unruptured VBDAs and develop appropriate treatment strategies.
    2. Preoperative cranial MRI, CTA, DSA and other imaging tests were used to determine the aneurysm site, morphology, size, presence of compression symptoms, and whether it was accompanied by an intramural hematoma.
Study groups in NCT06541106
Study groupRoleWhat they receive
Conservative management groupPatients with unruptured VBDAs did not receive any interventional therapy (including endovascular therapy and microsurgery).
Receives: Other: Multi-disciplinary assessment
Stent-assisted coiling groupPatients with unruptured VBDAs receive common stent and coils embolization.
Flow diverter groupPatients with unruptured VBDAs receive flow diverter treatment.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Poor prognosis

    Defined as an mRS score of 3-6.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  2. Aneurysm rupture

    Severe headache developed after treatment and was confirmed by CT as subarachnoid hemorrhage associated with VBDAs.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

Secondary outcomes (6)
  1. Ischemic stroke

    Ischemic stroke refer to in-stent thrombosis, transient ischemic attack, or cerebral infarction associated with the treated vascular area.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  2. Compression symptom

    Compression symptoms refer to cranial neuropathy or brainstem symptoms associated with aneurysm compression.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  3. VBDA-related death

    Patients died during hospitalization or follow-up and were associated with VBDA. The causes of death were categorized as: aneurysm rupture, ischemic stroke, and compression symptoms.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  4. Improvement of neurological dysfunction

    The modified Rankin score was used to evaluate neurological dysfunction: Grade 0, completely asymptomatic; Grade 1, able to complete all daily duties and activities despite symptoms, but without obvious dysfunction; Grade 2, mildly disabled, unable to complete all activities before illness, but does not need help, can take care of themself; Grade 3, moderately disabled, requires some help, but does not need help while walking; Grade 4, severely disabled, unable to walk independently, unable to meet their own needs without help from others; Grade 5, severely disabled, bedridden, incontinence, requiring continuous care And attention; Grade 6, death.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  5. Rate of complete occlusion of aneurysms

    Complete occlusion of the aneurysm was confirmed by DSA, and then the rate of complete occlusion was compared between the groups.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

  6. Aneurysm recanalization

    Aneurysm recanalization was confirmed by DSA, and then the rate of aneurysm recanalization was compared between the groups.

    Measured: 6 months, 1 year, 3 years, and 5 years after treatment.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Aug 2024
  2. Study start1 Jan 2011
  3. Primary completion1 Jan 2031 (estimated)
  4. Study completion1 Jan 2032 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
2,000 participants (estimated)
Target duration
3 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT06541106
Sponsor's protocol ID
VBDAs China
Acronym
VBDAs China
Status last verified
Nov 2025
First submitted
2 Aug 2024
Last updated
28 Nov 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Huang LT, Zhang M, Tong X. Cerebral revascularization for complex vertebrobasilar artery dissecting aneurysms. Neurosurg Rev. 2024 Apr 5;47(1):138. doi: 10.1007/s10143-024-02365-5.

    PubMed 38578572
  • Amoukhteh M, Hassankhani A, Valizadeh P, Jannatdoust P, Ghozy S, Kobeissi H, Kallmes DF. Flow diverters in the treatment of intracranial dissecting aneurysms: a systematic review and meta-analysis of safety and efficacy. J Neurointerv Surg. 2024 Sep 17;16(10):1005-1012. doi: 10.1136/jnis-2023-021117.

    PubMed 38212103
  • Dmytriw AA, Alrashed A, Enriquez-Marulanda A, Medhi G, Mendes Pereira V. Unruptured Intradural Posterior Circulation Dissecting/Fusiform Aneurysms Natural History and Treatment Outcome. Interv Neuroradiol. 2023 Feb;29(1):56-62. doi: 10.1177/15910199211068673. Epub 2021 Dec 22.

    PubMed 34935531
  • Nakatomi H, Kiyofuji S, Ono H, Tanaka M, Kamiyama H, Takizawa K, Imai H, Saito N, Shiokawa Y, Morita A, Flemming KD, Link MJ. Giant Fusiform and Dolichoectatic Aneurysms of the Basilar Trunk and Vertebrobasilar Junction-Clinicopathological and Surgical Outcome. Neurosurgery. 2020 Dec 15;88(1):82-95. doi: 10.1093/neuros/nyaa317.

    PubMed 32745190
  • Adeeb N, Ogilvy CS, Griessenauer CJ, Thomas AJ. Expanding the Indications for Flow Diversion: Treatment of Posterior Circulation Aneurysms. Neurosurgery. 2020 Jan 1;86(Suppl 1):S76-S84. doi: 10.1093/neuros/nyz344.

    PubMed 31838535
  • Cho DY, Kim BS, Choi JH, Park YK, Shin YS. The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities. AJNR Am J Neuroradiol. 2019 Nov;40(11):1924-1931. doi: 10.3174/ajnr.A6252. Epub 2019 Oct 10.

    PubMed 31601577
  • Frisoli FA, Srinivasan VM, Catapano JS, Rudy RF, Nguyen CL, Jonzzon S, Korson C, Karahalios K, Lawton MT. Vertebrobasilar dissecting aneurysms: microsurgical management in 42 patients. J Neurosurg. 2021 Dec 10;137(2):393-401. doi: 10.3171/2021.9.JNS21397. Print 2022 Aug 1.

    PubMed 34891141
  • Ahn SS, Kim BM, Suh SH, Kim DJ, Kim DI, Shin YS, Ha SY, Kwon YS. Spontaneous symptomatic intracranial vertebrobasilar dissection: initial and follow-up imaging findings. Radiology. 2012 Jul;264(1):196-202. doi: 10.1148/radiol.12112331. Epub 2012 May 1.

    PubMed 22550310
  • Zhang Y, Tian Z, Sui B, Wang Y, Liu J, Li M, Li Y, Jiang C, Yang X. Endovascular Treatment of Spontaneous Intracranial Fusiform and Dissecting Aneurysms: Outcomes Related to Imaging Classification of 309 Cases. World Neurosurg. 2017 Feb;98:444-455. doi: 10.1016/j.wneu.2016.11.074. Epub 2016 Nov 24.

    PubMed 27890754
  • Sonmez O, Brinjikji W, Murad MH, Lanzino G. Deconstructive and Reconstructive Techniques in Treatment of Vertebrobasilar Dissecting Aneurysms: A Systematic Review and Meta-Analysis. AJNR Am J Neuroradiol. 2015 Jul;36(7):1293-8. doi: 10.3174/ajnr.A4360. Epub 2015 May 7.

    PubMed 25953763

Questions about this trial

What is this clinical trial studying?

An observational study of Dissecting Aneurysm of Cerebral Artery, run by Beijing Tiantan Hospital at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 28 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Linggen Dong, MD (+8613701376177, donglinggen@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Poor prognosis (time frame: 6 months, 1 year, 3 years, and 5 years after treatment.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06541106, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Nov 2025.

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