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MoyamoyaNCT00629915

The Role of Cerebral Hemodynamics in Moyamoya Disease

An observational study of Moyamoya and Stroke, run by Washington University School of Medicine at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine if people with moyamoya disease who have insufficient blood flow are at a higher risk for stroke. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Moyamoya, Stroke
How many people
56 participants
Where
1 siteUnited States
Study dates
Oct 2006to Jun 2015
Phase
Observational
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Persons with moyamoya disease will be recruited without restriction in regards to gender, race, age, and socioeconomic status. At Washington University, persons will be identified and recruited from the Neurosurgery service, the Stroke service of the Department of Neurology, and the Interventional Neuroradiology service. We have invited several established stroke investigators at large tertiary care facilities in the Midwest to form a cooperative study group. All these investigators have large-volume clinical practices and see several people with moya moya disease each year.

Who may be able to join

  • Adult > 18 years of age
  • Capable of informed consent
  • Clinical: Both asymptomatic and symptomatic patients will be included.
  • Anatomic: Unilateral or bilateral imaging findings consistent with moyamoya collaterals (Suzuki stages 3 and 4) on digital subtraction, computed tomographic, or magnetic resonance angiography (after Suzuki and Kodama, 1983)

Who cannot join

  • Any other disease that might be responsible for the vasculopathy, including atherosclerosis, neurofibromatosis, meningitis, sickle cell disease, skull base radiation therapy.
  • Pregnancy: All women of child-bearing potential will be tested for pregnancy on the day of the enrollment and throughout the course of the study.
  • Surgery: Prior open or endovascular revascularization procedures, unless there have been ischemic symptoms since surgery and angiographic evidence that the procedure was not successful

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Washington University School Of Medicine, 510 South Kingshighway Blvd

    St Louis, Missouri, 63110

Other trials in United States

About this study

The purpose of this study is to determine if people with moyamoya disease who have insufficient blood flow are at a higher risk for stroke.

Read the detailed description

Moyamoya disease is a rare medical disorder that affects the blood vessels (pipes that transport blood) in the brain. In Moyamoya disease, the large blood vessels in the middle of the brain close down over time. The cause of this disorder is unknown. In order to compensate for this narrowing, the body grows new small blood vessels around the blockage. These small branches grow larger (and may be more numerous) to give the disorder its name. "Moyamoya" is the Japanese term for "puff of smoke" and is used to describe the hazy appearance of these small blood vessels on an angiogram.

Treatment for moyamoya is difficult because so little is known about the disease. Some people never have a stroke while others may have several. It is likely that the strokes are due to insufficient blood flow to the brain. There are surgical procedures that may improve blood flow to the brain, however, these procedures may cause complications and may not always improve the blood flow.

The main purpose of this study is to determine if people with moyamoya disease who have insufficient blood flow are at a higher risk for stroke. In this study researchers will learn more about the risks and potential benefits of surgical treatment. This information will help decide if there are people at higher risk for stroke who might benefit from surgery or if there are those at a lower risk who might not benefit.

In this study, participants will undergo baseline clinical and laboratory evaluation. Measurements of blood flow to the brain and oxygen use will be obtained using by positron emission tomography (PET). Participants will be followed for up to 5 years. PET studies will be conducted one and three years after enrollment to determine if blood flow improves over time. Participants treated with surgery (at the discretion of their treating physicians) will also be followed for perioperative complications, improvement in blood flow, and long term risk of stroke.

Conditions
Moyamoya, Stroke
Keywords
Moyamoya, stroke
Medical subject headings
Moyamoya Disease, Stroke

What is being measured

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

  1. Primary endpoint: ipsilateral ischemic stroke.

    Measured: 6 month intervals for up to 5 years after enrollment

Secondary outcomes (2)
  1. Stroke specific quality of life (SSQOL), modified Rankin Scale, Barthel index

    Measured: 6 month intervals for up to 5 years after enrollment

  2. any stroke or death

    Measured: 6 month intervals for up to 5 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 posted6 Mar 2008 (estimated)
  2. Study startOct 2006
  3. Primary completionJun 2015
  4. Study completionJun 2015

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
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00629915
Sponsor's protocol ID
201103026
Other IDs
R01NS051631
Status last verified
May 2018
First submitted
4 Mar 2008
Last updated
7 May 2018
Results posted
No
Data monitoring committee
No

Publications

  • Hallemeier CL, Rich KM, Grubb RL Jr, Chicoine MR, Moran CJ, Cross DT 3rd, Zipfel GJ, Dacey RG Jr, Derdeyn CP. Clinical features and outcome in North American adults with moyamoya phenomenon. Stroke. 2006 Jun;37(6):1490-6. doi: 10.1161/01.STR.0000221787.70503.ca. Epub 2006 Apr 27.

    PubMed 16645133
  • Zipfel GJ, Sagar J, Miller JP, Videen TO, Grubb RL Jr, Dacey RG Jr, Derdeyn CP. Cerebral hemodynamics as a predictor of stroke in adult patients with moyamoya disease: a prospective observational study. Neurosurg Focus. 2009 Apr;26(4):E6. doi: 10.3171/2009.01.FOCUS08305.

    PubMed 19335132
  • Goyal MS, Hallemeier CL, Zipfel GJ, Rich KM, Grubb RL Jr, Chicoine MR, Moran CJ, Cross DT 3rd, Dacey RG Jr, Derdeyn CP. Clinical features and outcome in North American adults with idiopathic basal arterial occlusive disease without moyamoya collaterals. Neurosurgery. 2010 Aug;67(2):278-85. doi: 10.1227/01.NEU.0000371977.55753.DE.

    PubMed 20562658
  • Arias EJ, Derdeyn CP, Dacey RG Jr, Zipfel GJ. Advances and surgical considerations in the treatment of moyamoya disease. Neurosurgery. 2014 Feb;74 Suppl 1:S116-25. doi: 10.1227/NEU.0000000000000229.

    PubMed 24402480
  • Ashley WW Jr, Zipfel GJ, Moran CJ, Zheng J, Derdeyn CP. Moyamoya phenomenon secondary to intracranial atherosclerotic disease: diagnosis by 3T magnetic resonance imaging. J Neuroimaging. 2009 Oct;19(4):381-4. doi: 10.1111/j.1552-6569.2008.00272.x.

    PubMed 19021845
  • Jiang T, Perry A, Dacey RG Jr, Zipfel GJ, Derdeyn CP. Intracranial atherosclerotic disease associated with moyamoya collateral formation: histopathological findings. J Neurosurg. 2013 May;118(5):1030-4. doi: 10.3171/2013.1.JNS12565. Epub 2013 Feb 8.

    PubMed 23394336
  • Lee JJ, Shimony JS, Jafri H, Zazulia AR, Dacey RG Jr, Zipfel GR, Derdeyn CP. Hemodynamic Impairment Measured by Positron-Emission Tomography Is Regionally Associated with Decreased Cortical Thickness in Moyamoya Phenomenon. AJNR Am J Neuroradiol. 2018 Nov;39(11):2037-2044. doi: 10.3174/ajnr.A5812. Epub 2018 Oct 25.

    PubMed 30361434
  • Derdeyn CP, Zipfel GJ, Zazulia AR, Davis PH, Prabhakaran S, Ivan CS, Aiyagari V, Sagar JR, Hantler N, Shinawi L, Lee JJ, Jafri H, Grubb RL Jr, Miller JP, Dacey RG Jr. Baseline Hemodynamic Impairment and Future Stroke Risk in Adult Idiopathic Moyamoya Phenomenon: Results of a Prospective Natural History Study. Stroke. 2017 Apr;48(4):894-899. doi: 10.1161/STROKEAHA.116.014538. Epub 2017 Mar 10.

    PubMed 28283605

Questions about this trial

What is this clinical trial studying?

An observational study of Moyamoya and Stroke, run by Washington University School of Medicine at 1 site in United States.

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 4 inclusion and 3 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: finished, as of the sponsor's last update on 7 May 2018. 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 United States. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary endpoint: ipsilateral ischemic stroke. (time frame: 6 month intervals for up to 5 years after enrollment). 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 NCT00629915, which also lists 8 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 7 May 2018.

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