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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
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
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.
Studietype
Inschrijving (Verwacht)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Ontario
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Hamilton, Ontario, Canada
- Hamilton Health Sciences
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
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)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Ander: 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.
Andere namen:
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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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Radiographic Changes
Tijdsspanne: 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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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Functional Improvement
Tijdsspanne: 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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Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Pankaj E Bansal, MD, Hamilton Health Sciences Corporation
- Hoofdonderzoeker: Seyed Hosseini, MD, Hamilton Health Sciences Corporation
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Verwacht)
Studie voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Hersenziekten
- Ziekten van het centrale zenuwstelsel
- Ziekten van het zenuwstelsel
- Neurologische manifestaties
- Neurologische gedragsmanifestaties
- Hersenbeschadiging, chronisch
- Craniocerebraal trauma
- Trauma, zenuwstelsel
- Bewusteloosheid
- Bewustzijnsstoornissen
- Hersenletsel
- Wonden en verwondingen
- Hersenletsel, traumatisch
- Persisterende vegetatieve toestand
- Fysiologische effecten van medicijnen
- Neurotransmitter agenten
- Moleculaire mechanismen van farmacologische werking
- Anti-infectieuze middelen
- Agenten van het perifere zenuwstelsel
- Antivirale middelen
- Pijnstillers
- Sensorische systeemagenten
- Pijnstillers, niet-narcotisch
- Dopamine-agenten
- Antiparkinson-agenten
- Middelen tegen dyskinesie
- Amantadine
Andere studie-ID-nummers
- 0452
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
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