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Idiopathic Normal Pressure HydrocephalusPhase 2NCT00221091

Study to Evaluate Efficacy of Shunt Operation for Idiopathic Normal Pressure Hydrocephalus

A Phase 2 study testing ventriculo-peritoneal shunt in people with Idiopathic Normal Pressure Hydrocephalus, run by Translational Research Center for Medical Innovation, Kobe, Hyogo, Japan at 1 site in Japan.

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

This study evaluates the efficacy of shunt operation for idiopathic normal pressure hydrocephalus, and determines the diagnostic value of noninvasive procedures commonly practiced in the clinic. Read more about this study

Who is it for?
Ages 60 to 85 years
Conditions the study is for
Idiopathic Normal Pressure Hydrocephalus
What is being tested?
ventriculo-peritoneal shunt
Type of treatment
Surgery or procedure
How many people
110 participants
Where
1 siteJapan
Study dates
Sep 2004to Oct 2005
Phase
Phase 2
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 60 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients who had at least one more points of the triad (gait disturbance, cognitive impairment, and urinary incontinence) in Japan NPH grading scale revised, and had disproportionate ventriculomegaly (Evans index >0.3) with closing of the CSF space at high convexity on MRI. These patients must be diagnosed clinically other causative disorders, and ventricular dilatation due to disturbance of the cerebrospinal fluid (CSF) circulation. Be able to give informed consent.

Who cannot join

  • 1) Cannot have an MRI scan 2) Has a problem with bleeding tendency and other serological examination. (liver enzyme and renal dysfunction, blood coagulopathy, and etc.) 3) Is unable to understand the risks of the testing and surgical therapy. 4) is tolerable for one year follow up after shunting operation.

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Noto General Hospital

    Nanao-shi, Ishikawa Pref., 926-8610

Other trials in Japan

About this study

Official title: Clinical Study of Idiopathic Normal Pressure Hydrocephalus for Neurological Improvement

This study evaluates the efficacy of shunt operation for idiopathic normal pressure hydrocephalus, and determines the diagnostic value of noninvasive procedures commonly practiced in the clinic.

Read the detailed description

Idiopathic normal pressure hydrocephalus (iNPH) is a syndrome characterized by ventricular dilatation due to disturbed cerebrospinal fluid (CSF) circulation, accompanied by gait disturbance, dementia and/or urinary incontinence without causative disorders. With the aging of Japanese society, the number of patients is increasing, requiring diagnostic and therapeutic guidelines for the improvement of the patients' quality of life and social care. Under such conditions, this project was made as the prospective study of iNPH on Neurological Improvement (SINPHONI ). This study aims 1) to establish methods for non-invasive diagnosis of iNPH, and 2) to demonstrate therapeutic outcome of shunting operation by Codman Hakim programmable valve (CHPV). In this protocol, the evaluation of validity on MRI, tap test, CT cisternography, and CBF (3D-SSP) will be done in the diagnosis, and manual of initial setting pressure in CHPV for prevention of overdrainage problems will be estimated by modified Rankin scale (as primary endpoint) and some another scales during 1 year.

Being tested
ventriculo-peritoneal shunt
Keywords
idiopathic normal pressure hydrocephalus, shunt

What participants receive

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

  • ventriculo-peritoneal shuntProcedure or surgery

What is being measured

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

  1. modified Rankin scale

Secondary outcomes (1)
  1. cognitive function, NPH grading scale

Timeline

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

  1. First posted22 Sep 2005 (estimated)
  2. Study startSep 2004
  3. Study completionOct 2005

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
110 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00221091
Sponsor's protocol ID
BRI NPH 03-01
Status last verified
Feb 2009
First submitted
13 Sep 2005
Last updated
9 Feb 2009
Results posted
No

Publications

  • Nakajima M, Yamada S, Miyajima M, Kawamura K, Akiba C, Kazui H, Mori E, Ishikawa M; SINPHONI-2 Investigators. Tap Test Can Predict Cognitive Improvement in Patients With iNPH-Results From the Multicenter Prospective Studies SINPHONI-1 and -2. Front Neurol. 2021 Nov 2;12:769216. doi: 10.3389/fneur.2021.769216. eCollection 2021.

    PubMed 34795635
  • Kameda M, Yamada S, Atsuchi M, Kimura T, Kazui H, Miyajima M, Mori E, Ishikawa M, Date I; SINPHONI and SINPHONI-2 Investigators. Cost-effectiveness analysis of shunt surgery for idiopathic normal pressure hydrocephalus based on the SINPHONI and SINPHONI-2 trials. Acta Neurochir (Wien). 2017 Jun;159(6):995-1003. doi: 10.1007/s00701-017-3115-2. Epub 2017 Mar 1.

    PubMed 28251346
  • Ishikawa M, Hashimoto M, Mori E, Kuwana N, Kazui H. The value of the cerebrospinal fluid tap test for predicting shunt effectiveness in idiopathic normal pressure hydrocephalus. Fluids Barriers CNS. 2012 Jan 13;9(1):1. doi: 10.1186/2045-8118-9-1.

    PubMed 22239832
  • Kawaguchi T, Hirata Y, Bundo M, Kondo T, Owaki H, Ito S, Hashimoto M, Ishikawa M. Role of computerized tomographic cisternography in idiopathic normal pressure hydrocephalus. Acta Neurochir (Wien). 2011 Oct;153(10):2041-8; discussion 2048. doi: 10.1007/s00701-011-1047-9. Epub 2011 May 25.

    PubMed 21611722
  • Hashimoto M, Ishikawa M, Mori E, Kuwana N; Study of INPH on neurological improvement (SINPHONI). Diagnosis of idiopathic normal pressure hydrocephalus is supported by MRI-based scheme: a prospective cohort study. Cerebrospinal Fluid Res. 2010 Oct 31;7:18. doi: 10.1186/1743-8454-7-18.

    PubMed 21040519

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ventriculo-peritoneal shunt in people with Idiopathic Normal Pressure Hydrocephalus, run by Translational Research Center for Medical Innovation, Kobe, Hyogo, Japan at 1 site in Japan.

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 1 inclusion and 1 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 9 Feb 2009. 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 Japan. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

modified Rankin scale. 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 NCT00221091, which also lists 5 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 9 Feb 2009.

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