- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02566720
Amantadine and Functional Improvement Following ABI Measured by MRI Tractography; A Pilot Study
Mechanism of Amantadine and Functional Improvement Following Acquired Brain Injury as Measured by MRI Tractography; A Pilot Study
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Primary Aim:
To determine the size of the RAS tracts as measured by MRI tractography. Specifically, the investigators will be measuring the fiber tracts that project through the posterior thalamus. The RAS is involved in mediating arousal and consciousness. The size of fiber tracts will be measured prior to initiating treatment and near the time of discharge from the rehabilitation hospital or at approximately ninety-days. It is hypothesized that treatment will result in an increase in the size of these fiber tracts.
As a pilot study, the investigators will be determining the feasibility of recruiting and retaining patients in this type of study. This will allow the clarification and understanding of the technical standards for MRI tractography related to the assessment of the reticular activating system.
Secondary Aim:
To determine and monitor changes in function following acquired brain injury as measured by the Disability Rating Scale (DRS) score. The DRS score will be obtained prior to initiating treatment and at termination of the study. It is hypothesized that treatment with amantadine in addition to standard medical treatment, will be associated with an improvement in function.
Type d'étude
Inscription (Anticipé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Ontario
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Hamilton, Ontario, Canada
- Hamilton Health Sciences
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Age 18 years - 65 years
- Nonpenetrating acquired brain injury (ABI)
- Persistent vegetative or minimally conscious state (as indicated by DRS score greater than 11)
- Consent from substitute decision maker
Exclusion Criteria:
- Contraindication to MRI (such as metal in the body, pacemaker, implanted nerve stimulator)
- Anticipated neurosurgical intervention
- Medical instability including uncontrolled hypertension, fever, or infection
- Seizure disorder prior to acquired brain injury or uncontrolled seizures subsequent to acquired brain injury
- Parkinson's disease
- History of heart failure or pre-existing peripheral oedema
- History of eczematoid dermatitis
- History of angle-closure glaucoma
- History of neuroleptic malignant syndrome
- Current treatment with Amantadine
- Impairment related to other neurologic disease other than ABI
- Allergy to Amantadine
- Pregnancy or lactation
- Impairment of renal function (creatinine clearance less than 60ml/min)
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Autre: Treatment and MRI scanning
After informed consent has been obtained, the subjects will be examined by a physician and assigned a Disability Ratings Scale (DRS) score.
Subjects will undergo MRI tractography study, which does not require the administration of contrast.
All participants will receive oral amantadine at escalating doses to ensure tolerance (50mg twice daily for 7 days, then 100mg twice daily for 1 week, then 150mg twice daily, then 200mg twice daily).
The usual length of stay on the inpatient brain injury program is ninety days.
The MRI tractography study and DRS score will be repeated near the time of discharge or ninety days from enrollment.
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Participants will initially receive amantadine at the starting dose of 50mg twice daily either by mouth or feeding tube.
The dosage will increase every week by 50mg twice daily (100mg total dose increase) up to the target dose of 200mg twice daily.
These are the usual doses and rate of increase that are offered to patients with brain injury.
Autres noms:
Participants will initially receive a baseline MRI Tractography scan.
The size of RAS fiber tracts will be measured prior to initiating treatment and near the time of discharge from the rehabilitation hospital or at approximately ninety-days.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Radiographic Changes
Délai: At baseline and ninety days or at time of discharge from hospital if occurs earlier.
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MRI Tractography will be performed to measure the size the of reticular activating system fiber tracts.
Specifically, the tracts that project through the posterior thalamus.
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At baseline and ninety days or at time of discharge from hospital if occurs earlier.
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Functional Improvement
Délai: At ninety days or at time of discharge from hospital if occurs earlier.
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Disability Rating Scale Score (at enrolment and at completion of the study).
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At ninety days or at time of discharge from hospital if occurs earlier.
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Pankaj E Bansal, MD, Hamilton Health Sciences Corporation
- Chercheur principal: Seyed Hosseini, MD, Hamilton Health Sciences Corporation
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Maladies du cerveau
- Maladies du système nerveux central
- Maladies du système nerveux
- Manifestations neurologiques
- Manifestations neurocomportementales
- Lésions cérébrales chroniques
- Traumatisme crânio-cérébral
- Traumatisme, système nerveux
- Inconscience
- Troubles de la conscience
- Lésions cérébrales
- Blessures et Blessures
- Lésions cérébrales, traumatiques
- État végétatif persistant
- Effets physiologiques des médicaments
- Agents neurotransmetteurs
- Mécanismes moléculaires de l'action pharmacologique
- Agents anti-infectieux
- Agents du système nerveux périphérique
- Agents antiviraux
- Analgésiques
- Agents du système sensoriel
- Analgésiques, non narcotiques
- Agents dopaminergiques
- Agents antiparkinsoniens
- Agents anti-dyskinésie
- Amantadine
Autres numéros d'identification d'étude
- 0452
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