Tutkimus Choydar virtaussuuntautuvan verkkostentin hoidosta puhkeamattomiin aivovaltimopullistumiin (CROWN)
Monikeskuksinen, prospektiivinen, yksisuuntainen tarkkailututkimus Choydar Flow-Directed Mesh -stentin turvallisuuden ja tehon arvioimiseksi rakkuloimattomien aivovaltimoiden aneurysmien hoidossa
The purpose of this study is to assess how safe choydar flow-directed mesh stent is and how well it works in the treatment of unruptured intracranial aneurysms (a condition in which a bulging blood vessel in the brain can burst and cause bleeding) in a real-world setting.
Tutkimuksen yleiskatsaus
Tila
Tila
Ehdot
Ehdot
Opintotyyppi
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Ilmoittautuminen
Yhteystiedot ja paikat
Opiskeluyhteys
Opiskeluyhteys
- Nimi: Yuanyuan Gu
- Puhelinnumero: 86 15692105615
- Sähköposti: ygu51@its.jnj.com
Opiskelupaikat
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Chenzhou, Kiina, 432000
- Rekrytointi
- Chenzhou No.1 People's Hospital
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Guangzhou, Kiina, 519041
- Rekrytointi
- Guangdong Provincial People's Hospital
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Nanjing, Kiina, 210008
- Rekrytointi
- Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School
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Nanjing, Kiina, 210029
- Rekrytointi
- The First Affiliated Hospital of Nanjing Medical University
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Nanyang, Kiina, 473000
- Rekrytointi
- Nanyang Central Hospital
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Taiyuan, Kiina, 30012
- Rekrytointi
- Shanxi Provincial People's Hospital
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Wuhu, Kiina, 241001
- Rekrytointi
- The First Affiliated Hospital of Wannan Medical College
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Zhengzhou, Kiina, 450052
- Rekrytointi
- The First Affiliated Hospital of Zhengzhou University
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Sukupuolet, jotka voivat opiskella
Näytteenottomenetelmä
Tutkimusväestö
Adult participants with unruptured wide-neck (neck width >= 4 mm or dome-to-neck ratio <2) saccular or fusiform aneurysms in the internal carotid artery (from the petrous segment to the distal end) and the vertebral artery arising from a parent vessel with a diameter >= 2.0 mm and <= 6.0 mm.
Kuvaus
Inclusion criteria:
Participants meeting all the following inclusion criteria will be included:
Preoperative inclusion criteria:
- Presence of unruptured aneurysms in the internal carotid artery (from the petrous segment to the distal end) or vertebral artery identified by digital subtraction angiography (DSA), computed tomography angiography (CTA), or magnetic resonance angiography (MRA) prior to surgery, wide-neck (neck width greater than or equal to [>=] 4 millimeters [mm] or dome-to-neck ratio less than [<] 2) saccular or fusiform aneurysms, and the parent artery diameter must be >= 2.0 mm and less than or equal to [<=] 6.0 mm
- Participants and/or their authorized representatives understand the purpose of the study, and are willing to voluntarily participate in the study and sign the informed consent form (ICF)
- Prior to enrollment, a clinical decision has already been made to use the choydar flow-directed mesh stent
- Participants who are willing and able to return for all follow-up visits as required by the study protocol
Intraoperative inclusion criteria:
- Presence of unruptured aneurysms in the internal carotid artery (from the petrous segment to the distal end) or vertebral artery identified by DSA during the procedure, wide-neck (neck width >= 4 mm or dome-to-neck ratio <2) saccular or fusiform aneurysms, and the parent artery diameter must be >= 2.0 mm and <= 6.0 mm
Exclusion criteria:
Participants meeting any of the following exclusion criteria will be excluded:
- Participants with anatomy are unsuitable for flow diverter passage or placement or lesions unsuitable for flow diverter delivery and deployment (for example, the lesion vessel is excessively tortuous or tiny, the flow diverter cannot reach the lesion site, stenosis exists in the target vessel of recurrent aneurysm, or the flow diverter is not completely deployed)
- Participants who are allergic to contrast media
- Participants who are allergic to nickel-titanium alloy or platinum-tungsten alloy
- Participants who are contraindicated for antiplatelet and/or anticoagulant therapy
- Participants with active bacterial infections
- Participants who are confirmed positive pregnancy (for example, via test or oral communication) according to the site-specific standard of care
- Participants who are currently participating in an investigational (drug, device, etc.) clinical study that may confound the study endpoints (excluding observational, natural history, and/or epidemiological studies that do not require interventions)
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Havaintomallit: COHORT
- Aikanäkymät: PROSPECTIVE
Ryhmien/kohorttien lukumäärä
Kohortit ja interventiot
Ryhmä/KohorttiRyhmä/Kohortti |
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Choydar Flow-Directed Mesh Stent
The choydar flow-directed mesh stent will be used in accordance to its Instructions For Use (IFU) in participants with unruptured intracranial aneurysms. Participants will not receive any other intervention as a part of this study. |
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
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Complete Aneurysm Occlusion Rate at 12 Months Post-Procedure (Raymond-Roy Class I)
Aikaikkuna: At 12 months follow-up post-procedure
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Complete aneurysm occlusion rate as per Raymond Roy classification criteria (Class I) is defined as complete obliteration (no contrast filling in aneurysm body or neck). It is calculated as follows: number of target aneurysms achieving Raymond-Roy Class I occlusion at 12-month follow-up post-procedure/number of target aneurysms with 12-month imaging evaluation * 100 percent (%). |
At 12 months follow-up post-procedure
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Adequate Aneurysm Occlusion Rate at 12-month Follow-up Post-Procedure (Raymond-Roy Classes I and II)
Aikaikkuna: At 12 months follow-up post-procedure
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Adequate aneurysm occlusion rate as per Raymond Roy classification criteria (Class II and III) is defined as Class II: residual neck (contrast filling in aneurysm neck but none in aneurysm body) and Class III: residual aneurysm (contrast filling in aneurysm body). It is calculated as follows: number of target aneurysms achieving Raymond-Roy Class I/II occlusion at 12-month follow-up post-procedure/number of target aneurysms with 12-month imaging evaluation * 100 %. |
At 12 months follow-up post-procedure
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Percentage of Participants with Immediate Technical Success Rate of Procedure
Aikaikkuna: At Day 0 (Day of procedure)
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Percentage of participants with immediate technical success rate of procedure will be reported. Immediate technical success of the procedure is defined as the percentage of participants in whom the flow diverter is successfully deployed during the procedure, with accurate positioning confirmed by intra-procedure angiography, and with effective coverage of the aneurysm neck by the implant. It is calculated as follows: number of participants with successful placement of the investigational device/total number of participants undergoing the treatment * 100 %. |
At Day 0 (Day of procedure)
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Re-treatment Rate of Target Aneurysm at 12-Month Follow-up Post-Procedure
Aikaikkuna: At 12 months follow-up post-procedure
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The incidence of re-treatment of the target aneurysm at 12 months follow-up post-procedure will be reported. |
At 12 months follow-up post-procedure
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Percentage of Participants with Modified Rankin Scale (mRS) Score of 0-2 at 12 Months Post-Procedure
Aikaikkuna: At 12 months follow-up post-procedure
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Percentage of participants with mRS score of 0-2 at 12 months post-procedure will be reported. The mRS score is issued to evaluate the improvement of neurological function. It assesses the ability of participants with neurological disease to live independently. There are 7 levels of this score, 0 points represent no symptoms of disability, higher scores mean worse prognosis of participants , and 6 points represent death. |
At 12 months follow-up post-procedure
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Number of Participants with Major Ischemic/Hemorrhagic Events and/or Death During Perioperative Period
Aikaikkuna: Perioperative
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Number of participants with major ischemic/hemorrhagic events and/or death during perioperative period will be reported. Major ischemic/hemorrhagic events are defined as an increase of >= 4 points in the National Institutes of Health Stroke Scale (NIHSS) score compared with the previous score. |
Perioperative
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Number of Participants with Major Ischemic/Hemorrhagic Events and/or Death During 12-Month Follow-up
Aikaikkuna: At 12 months follow-up post-procedure
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Number of participants with major ischemic/hemorrhagic events and/or death during 12 months follow-up period will be reported. Major ischemic/hemorrhagic events are defined as an increase of >= 4 points in the NIHSS score compared with the previous score. |
At 12 months follow-up post-procedure
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Number of Participants with Severe in-Stent Stenosis (Greater Than [>] 50%) During 12-Month Follow-up
Aikaikkuna: At 12 months follow-up post-procedure
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Number of participants with severe in-stent stenosis during 12-month follow-up period will be reported. The percent stenosis is calculated according to the calculation method of Warfarin-Aspirin Symptomatic Intracranial Disease (WASID) study as follows: (1 - Ds [Diameter of the artery at the site of the most severe stenosis]/Dn [Diameter of the normal artery]) * 100%. |
At 12 months follow-up post-procedure
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Rupture Rate of Target Aneurysm During 12-Month Follow-Up Post-Procedure
Aikaikkuna: At 12 months follow-up post-procedure
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The incidence of rupture of the target aneurysm within 12 months post-procedure will be reported. |
At 12 months follow-up post-procedure
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Yhteistyökumppanit ja tutkijat
Sponsori
Sponsori
Tutkijat
Tutkijat
- Opintojohtaja: Johnson & Johnson Medical (Shanghai) Ltd. Clinical Trial, Johnson & Johnson Medical (Shanghai) Ltd.
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Opiskelun aloitus
Ensisijainen valmistuminen (Arvioitu)
Ensisijainen valmistuminen
Opintojen valmistuminen (Arvioitu)
Opintojen valmistuminen
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Ensimmäinen Lähetetty
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin päivitys julkaistu
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
Muut tutkimustunnusnumerot
- CNV202507
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
IPD-suunnitelman kuvaus
The data sharing policy of Johnson & Johnson MedTech is available at www.innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu.
Lääke- ja laitetiedot, tutkimusasiakirjat
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