NCT00874198

Brief Summary

The purpose of the study is to determine the predictive values and prognostic accuracies of CSF dynamic measures, the TAP -TEST (high-volume cerebrospinal fluid withdrawal), resistance to CSF outflow and compliance in the prediction of shunt-treatment outcome in patients with idiopathic normal pressure hydrocephalus.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
156

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2004

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2004

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2008

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

April 1, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

April 2, 2009

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2009

Completed
Last Updated

April 3, 2009

Status Verified

April 1, 2009

Enrollment Period

3.4 years

First QC Date

April 1, 2009

Last Update Submit

April 2, 2009

Conditions

Keywords

normal pressure hydrocephaluscerebrospinal fluid dynamic testcerebrospinal fluid outflow resistancecerebrospinal complianceoutcomeshunt surgerynormal pressure hydrocephalus guidelinesbiomarkersshunt surgery selectionOutcome measuresOutcomes assessmentOutcome and process assessment

Outcome Measures

Primary Outcomes (1)

  • Modified Rankin Scale

    12 months

Secondary Outcomes (5)

  • Neuropsychological measures (Stroop test, REy-auditory verbal learing test, PEG-BOARD TEST), Balance -score, Incontinence-score, Gait-score, Walking-score

    three and 12 months

  • Balance -score

    three and 12 months

  • Incontinence-score

    three and 12 months

  • Gait-score

    three and 12 months

  • Walking-score

    three and 12 months

Interventions

Surgical implantation of a ventriculo-peritoneal cerebrospinal fluid shunt with an adjustable valve system using the Codman-Hakim programmable valve system \[pressure settings: 30 - 200 mmH20\]

Also known as: see above

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Clinical diagnosis (neurological and radiological criteria) of idiopathic normal pressure hydrocephalus
  • Typical INPH
  • Clinical criteria:
  • Gradually developed gait disturbance of both legs, unexplained by other conditions. Disturbance of tandem walking, multi-step turning, small steps and wide base must be present at least.
  • MMSE score 21-30 without aphasia, apraxia and agnosia
  • Bladder instability and postural instability may be present.
  • Radiological criteria (MRI):
  • Symmetrical communicating quadri-ventricular enlargement without cortical infarcts or other clinically relevant parenchymal lesions but lacunar infarcts of less than 1 cc may be present
  • Evans index \> 0.30 and temporal horns and third ventricle relatively enlarged.
  • Mild cortical atrophy and mild leuco-araiosis may be present.
  • Questionable NPH
  • Clinical criteria:
  • Any gait disturbance of both legs that does not fulfill the criteria of typical INPH, but is compatible with INPH.
  • MMSE score \< 21
  • Bladder instability and postural instability may be present.
  • +4 more criteria

You may not qualify if:

  • Secondary Normal pressure Hydrocephalus
  • Non-communicating hydrocephalus
  • Secondary NPH (after SAH, trauma, infection, neurosurgical procedure). Trauma or infection are regarded as relevant if the patient was unconscious in relation to the trauma or required hospitalisation for his meningo-encephalitis.
  • INPH-patients later shown to have ICP \> 18 mm Hg.
  • Contra-indications to surgery.
  • Patients refusing shunt surgery
  • Restricted life-expectancy
  • Patients not capable of managing the tests or investigations at entry of the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

International Neuroscience Institute Hannover

Hanover, Lower Saxony, 30625, Germany

Location

Related Publications (9)

  • Marmarou A, Black P, Bergsneider M, Klinge P, Relkin N; International NPH Consultant Group. Guidelines for management of idiopathic normal pressure hydrocephalus: progress to date. Acta Neurochir Suppl. 2005;95:237-40. doi: 10.1007/3-211-32318-x_48.

    PMID: 16463856BACKGROUND
  • Hebb AO, Cusimano MD. Idiopathic normal pressure hydrocephalus: a systematic review of diagnosis and outcome. Neurosurgery. 2001 Nov;49(5):1166-84; discussion 1184-6. doi: 10.1097/00006123-200111000-00028.

    PMID: 11846911BACKGROUND
  • Boon AJ, Tans JT, Delwel EJ, Egeler-Peerdeman SM, Hanlo PW, Wurzer HA, Avezaat CJ, de Jong DA, Gooskens RH, Hermans J. Dutch normal-pressure hydrocephalus study: prediction of outcome after shunting by resistance to outflow of cerebrospinal fluid. J Neurosurg. 1997 Nov;87(5):687-93. doi: 10.3171/jns.1997.87.5.0687.

    PMID: 9347976BACKGROUND
  • Walchenbach R, Geiger E, Thomeer RT, Vanneste JA. The value of temporary external lumbar CSF drainage in predicting the outcome of shunting on normal pressure hydrocephalus. J Neurol Neurosurg Psychiatry. 2002 Apr;72(4):503-6. doi: 10.1136/jnnp.72.4.503.

    PMID: 11909911BACKGROUND
  • Wikkelso C, Andersson H, Blomstrand C, Lindqvist G, Svendsen P. Normal pressure hydrocephalus. Predictive value of the cerebrospinal fluid tap-test. Acta Neurol Scand. 1986 Jun;73(6):566-73. doi: 10.1111/j.1600-0404.1986.tb04601.x.

    PMID: 3751498BACKGROUND
  • Tans JT, Poortvliet DC. Reduction of ventricular size after shunting for normal pressure hydrocephalus related to CSF dynamics before shunting. J Neurol Neurosurg Psychiatry. 1988 Apr;51(4):521-5. doi: 10.1136/jnnp.51.4.521.

    PMID: 3379425BACKGROUND
  • Kahlon B, Sundbarg G, Rehncrona S. Comparison between the lumbar infusion and CSF tap tests to predict outcome after shunt surgery in suspected normal pressure hydrocephalus. J Neurol Neurosurg Psychiatry. 2002 Dec;73(6):721-6. doi: 10.1136/jnnp.73.6.721.

    PMID: 12438477BACKGROUND
  • Zemack G, Romner B. Adjustable valves in normal-pressure hydrocephalus: a retrospective study of 218 patients. Neurosurgery. 2002 Dec;51(6):1392-400; discussion 1400-2.

    PMID: 12445344BACKGROUND
  • Wikkelso C, Hellstrom P, Klinge PM, Tans JT; European iNPH Multicentre Study Group. The European iNPH Multicentre Study on the predictive values of resistance to CSF outflow and the CSF Tap Test in patients with idiopathic normal pressure hydrocephalus. J Neurol Neurosurg Psychiatry. 2013 May;84(5):562-8. doi: 10.1136/jnnp-2012-303314. Epub 2012 Dec 18.

MeSH Terms

Conditions

Hydrocephalus, Normal Pressure

Interventions

Ventriculoperitoneal Shunt

Condition Hierarchy (Ancestors)

HydrocephalusBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Cerebrospinal Fluid ShuntsAnastomosis, SurgicalSurgical Procedures, OperativeNeurosurgical Procedures

Study Officials

  • Petra M Klinge, MD

    International Neuroscience Institute Hannover

    PRINCIPAL INVESTIGATOR
  • Carsten I Wikkelsoe, MD

    Sahlgrenska University, Gothenburg, Sweden

    PRINCIPAL INVESTIGATOR
  • Jos TH Tans, MD

    Westeinde Hospital, Den Haag, Netherlands

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER

Study Record Dates

First Submitted

April 1, 2009

First Posted

April 2, 2009

Study Start

October 1, 2004

Primary Completion

March 1, 2008

Study Completion

June 1, 2009

Last Updated

April 3, 2009

Record last verified: 2009-04

Locations