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Brain Arteriovenous MalformationsNCT05449106

Evaluation of Clinical Outcomes of Unruptured bAVMs Treated With Medical Management Alone Based on Multimodal CT

An observational study of Brain Arteriovenous Malformations, run by Beijing Tiantan Hospital at 4 sites 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 purpose of this study is to investigate the role of multimodal CT in evaluating and predicting different clinical outcomes in patients with unruptured brain arteriovenous malformations with medical management alone. This study will be undertaken in the following aspects: 1. Read more about this study

Who is it for?
Ages 3 to 80 years
Conditions the study is for
Brain Arteriovenous Malformations
How many people
200 participants
Where
4 sitesChina
Study dates
25 May 2022to 25 May 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 3 to 80 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Patients with the diagnosis of AVM was confirmed with Digital Subtraction Angiography (DSA) , Magnetic Resonance Imaging(MRI), or Computed Tomography Angiography, eligible for enrollment criteria and have images that were acquired without any intervention.

Who may be able to join

  • Patients with confirmed diagnosis of brain arteriovenous malformations in the brain, basal ganglia, thalamus, corpus callosum, cerebellum and other locations.
  • Patients with no history of previous arteriovenous malformation-related hemorrhage and no arteriovenous malformation-related hemorrhage confirmed by CT examination.
  • Patients with Radiographic examinations completed without any treatment

Who cannot join

  • Patients with simple arteriovenous fistula.
  • Patients with combined dural arteriovenous fistulas.
  • Arteriovenous malformations occurring in the spinal cord.
  • Pregnant patients were not included in this study.

Trial locations and contacts

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

Shaosen Zhang, Doctor contact

+8618611284839

longyoubafang@hotmail.com

China4 sites, 4 recruiting
  • Beijing Tiantan Hospital, Capital Medical University

    Beijing, Beijing Municipality, 100070

    Shaosen Zhang, Doctor, +8618611284839, longyoubafang@hotmail.com

    Dong Zhang, Doctor

    Recruiting
  • Beijing Hospital

    Beijing, Beijing Municipality, 102249

    Jun Lu, Doctor, 13521208691, lujun3655@bjhmoh.cn

    Jun Lu, Doctor

    Recruiting
  • The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

    Nanjing, Jiangsu, 210008

    Zhiyong Shi, Doctor, +861501104692, szy1195156829@aliyun.com

    Yongbo Yang, Doctor

    Recruiting
  • The First Affiliated Hospital of Zhengzhou University

    Zhengzhou, Henan, 450052

    Yingwei Zhen, Doctor, +8618739929265, zhenyw@aliyun.com

    Guosheng Zhou, Doctor

    Recruiting

Other trials in China

About this study

Official title: Evaluation of Clinical Outcomes of Unruptured Brain Arteriovenous Malformations Treated With Medical Management Alone Based on Multimodal Computer Tomography: A Long-term Multicenter Prospective Cohort Study

The purpose of this study is to investigate the role of multimodal CT in evaluating and predicting different clinical outcomes in patients with unruptured brain arteriovenous malformations with medical management alone.

This study will be undertaken in the following aspects:

Read more
  1. Morphological, structural and imaging histological signal analysis based on multimodal CT to explore the relationship between imaging features and different clinical outcomes of bAVMs.
  2. Hemodynamic and flow pattern analysis of local and peripheral bAVMs based on multimodal CT to explore the association between blood flow features and different clinical outcomes.
  3. Based on multimodal CT and deep learning algorithms to create an automated segmentation model for bAVMs and a prediction model for distinct clinical outcomes.

The obtained patient information includes: Baseline information, CT, MRI, DSA (Optional), and follow-up information. Follow-up will be undertaken at 6 months, 12 months, 24 months and 36 months after enrollment with the following primary observation.

Main observation endpoints:

  1. Hemorrhage events associated with bAVMs
  2. New epilepsy symptoms or exacerbations
  3. New neurological dysfunction(including motor dysfunction, cognitive dysfunction, etc).
Read the detailed description

This study is a Long-term, multi-center, prospective registry study, and was supported by China National Key Research and Development Program Project No. 2021YFC2500502.

The purpose of this study is to investigate the role of multimodal Computer Tomography(CT) in evaluating and predicting different clinical outcomes in patients with unruptured brain arteriovenous malformations with medical management alone.

This study will be undertaken in the following aspects:

  1. Morphological, structural and imaging histological signal analysis based on multimodal CT to study the relationship between imaging features and different clinical outcomes of bAVMs.
  2. Hemodynamic and flow pattern analysis of local and peripheral bAVMs based on multimodal CT to explore the association between blood flow features and different clinical outcomes.
  3. Based on multimodal CT and deep learning algorithms to create an automated segmentation model for bAVMs and a prediction model for distinct clinical outcomes.
  4. To compare the efficacy of multimodal CT and MRI in evaluating the clinical outcomes of unruptured cerebral arteriovenous malformations.

The obtained patient information includes:

  1. Baseline information
  2. CT images: including non-contrast CT(NCCT), CT Angiography, CT perfusion
  3. Magnetic Resonance Imaging(MRI): including T1-weighted image, T2-weighted image, T2-FLAIR, Time of Flight MR angiography(TOF-MRA), diffusion-weighted imaging(DWI), susceptibility weighted imaging(SWI)
  4. Digital subtraction angiography(DSA, optional)
  5. Follow-up information: follow-up will be undertaken at 6 months, 12 months, 24 months and 36 months after enrollment with the following primary observation.

Main observation endpoints:

  1. Hemorrhage events associated with bAVMs, ensuring by CT scan;
  2. New epilepsy symptoms or exacerbations, ensuring by consultation or EEG ;
  3. New neurological dysfunction(including motor dysfunction, cognitive dysfunction, etc), ensuring by consultation, physical examination or any radiology examination.

Inclusion criteria

  1. Patients with confirmed diagnosis of bAVMs in the cerebrum, basal ganglia, thalamus, corpus callosum, cerebellum and brainstem;
  2. Patients with no history of previous bAVM related hemorrhage confirmed by CT examination, or have radiographic examination completed prior to the hemorrhage.
  3. Patients with radiographic examinations before any treatment;

Exclusion criteria.

  1. Patients with simple arteriovenous fistula;
  2. Patients with combined dural arteriovenous fistula;
  3. Arteriovenous malformations occurring in the spinal cord;
  4. Pregnant patients were not included in this study.
Keywords
Unruptured arteriovenous malformations, Multimodal CT, Machine learning

What is being measured

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

  1. Number of participants with rupture events

    Arteriovenous malformation rupture during follow-up before treatment

    Measured: 3 years after enrollment

  2. Number of participants with epilepsy Progression

    Progression of seizure symptoms during follow-up, including but not limited to more frequent seizures, worsening of symptoms, etc.

    Measured: 3 years after enrollment

  3. Number of participants with new onset neurological dysfunction

    New neurological deficits during the follow-up period, including motor deficits, cognitive deficits, etc.

    Measured: 3 years after enrollment

Secondary outcomes (1)
  1. Number of participants receiving treatment

    Patients receiving any form of intervention during the follow-up period will stop the follow-up

    Measured: 3 years after enrollment

Timeline

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

  1. First posted8 Jul 2022
  2. Study start25 May 2022
  3. Primary completion25 May 2027 (estimated)
  4. Study completion25 May 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
200 participants (estimated)
Target duration
3 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT05449106
Sponsor's protocol ID
KY2022-054-02
Status last verified
Aug 2023
First submitted
4 Jul 2022
Last updated
7 Sep 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Brain Arteriovenous Malformations, run by Beijing Tiantan Hospital at 4 sites 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 3 inclusion and 4 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 7 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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 Shaosen Zhang, Doctor (+8618611284839, longyoubafang@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants with rupture events (time frame: 3 years after enrollment). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 7 Sep 2023.

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