Early Versus Delayed Treatment of Unilateral Neglect After Stroke

NCT ID: NCT01341574

Last Updated: 2021-11-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-08-31

Study Completion Date

2015-12-31

Brief Summary

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'Unilateral neglect' is a disorder that occurs regularly after stroke. It is caused by right- as well as left-sided brain lesions, but more often by right-sided lesions. Patients with this disorder neglect the contralesional side of space and/or their body. Their body axis is often shifted ipsilesionally. A specific disorder that can appear in neglect patients is 'contraversive pushing': a postural deviation to the neglected side because the patient pushes himself away from the ipsi- to the contralesional side.

One of the most promising neglect interventions is prism adaptation (PA): inducing an optical shift of the visual field by means of prism glasses. This results in a modulation of brain areas involved in neglect and in an improvement of the neglect symptoms and postural deviation.

Research questions:

1. Which period is best suited to maximize therapeutic effects? In this respect the effects of early and delayed PA will be compared, regarding neglect-, postural and cerebral measures.
2. Which factors lead to a less favorable treatment outcome or to therapy resistance for PA?
3. Will the impact of PA be larger if postural factors are taken into account in the prism therapy?

Detailed Description

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Conditions

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Spatial Neglect After Stroke

Keywords

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spatial neglect stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Early phase, experimental

Neglect patients, randomized in the experimental group (Prism adaptation, optical shift of 10 degrees) in the early phase after stroke.

Group Type EXPERIMENTAL

Prism adaptation with optical shift of 10 degrees.

Intervention Type PROCEDURE

Prism adaptation with optical shift of 10 degrees.

Delayed phase, experimental

Neglect patients, randomized in the experimental group (Prism adaptation, optical shift of 10 degrees) in the delayed phase after stroke.

Group Type EXPERIMENTAL

Prism adaptation with optical shift of 10 degrees.

Intervention Type PROCEDURE

Prism adaptation with optical shift of 10 degrees.

Early phase, placebo

Neglect patients, randomized in the placebo group (Prism adaptation, optical shift of 0 degrees) in the early phase after stroke.

Group Type PLACEBO_COMPARATOR

Prism adaptation optical shift of 0 degrees.

Intervention Type PROCEDURE

Prism adaptation with optical shift of 0 degrees.

Delayed phase, placebo

Neglect patients, randomized in the placebo group (Prism adaptation, optical shift of 0 degrees) in the delayed phase after stroke.

Group Type PLACEBO_COMPARATOR

Prism adaptation optical shift of 0 degrees.

Intervention Type PROCEDURE

Prism adaptation with optical shift of 0 degrees.

Delayed phase postural, experimental

Neglect patients, randomized in the experimental group (Prism adaptation, optical shift of 10 degrees) in the delayed phase after stroke. In this group, postural aspects are taken into account.

Group Type EXPERIMENTAL

Prism adaptation with optical shift of 10 degrees.

Intervention Type PROCEDURE

Prism adaptation with optical shift of 10 degrees.

Interventions

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Prism adaptation with optical shift of 10 degrees.

Prism adaptation with optical shift of 10 degrees.

Intervention Type PROCEDURE

Prism adaptation optical shift of 0 degrees.

Prism adaptation with optical shift of 0 degrees.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* male or female
* \> 17 years of age
* stroke patients with clinical neglect, demonstrated by neglect tests

Exclusion Criteria

* severe ocular abnormalities
* not being able to perform prism adaptation or neglect tests
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fund for Scientific Research, Flanders, Belgium

OTHER

Sponsor Role collaborator

University Ghent

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Guy Vingerhoets, Ph.D., Professor

Role: PRINCIPAL_INVESTIGATOR

University Ghent

Locations

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Rehabilitation Hospital "Hof ter Schelde"

Antwerp, , Belgium

Site Status

Ghent University Hospital, Center for Locomotor and Neurological Rehabilitation

Ghent, , Belgium

Site Status

Ghent University Hospital, Department of Neurology

Ghent, , Belgium

Site Status

Countries

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Belgium

Other Identifiers

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G.0906.10

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

2011/161

Identifier Type: -

Identifier Source: org_study_id