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Imaging the neural correlates of cholinergic and behaviour driven rehabilitation in patients with Wernicke's aphasia
ISRCTN ISRCTN68939136
ClinicalTrials.gov identifier
Public title Imaging the neural correlates of cholinergic and behaviour driven rehabilitation in patients with Wernicke's aphasia
Scientific title
Acronym N/A
Serial number at source 075765; ME033459MES
Study hypothesis To measure therapy related changes in brain function in a group of patients with post-stroke, Wernicke's aphasia. Two therapies will be trialed: a drug (donepezil) and computer delivered speech therapy programme.
Ethics approval Approval received from the local COREC committee (National Hospital for Neurology and Neurosurgery and the Institute of Neurology Joint REC) on the 6th January 2006 (ref: 05/Q0512/134).
Study design A double-blinded, cross-over, randomised controlled trial
Countries of recruitment United Kingdom
Disease/condition/study domain Post-stroke aphasia
Participants - inclusion criteria 1. Subjects will be English native speakers
2. Subjects will be over the age of 18
3. More than three months post stroke
4. Only consent competent patients will be enrolled
Participants - exclusion criteria 1. Patients with contraindications to cholinesterase inhibitors
2. Patients with contraindications to functional Magnetic Resonance Imaging (fMRI)/Magnetoencephalography (MEG)
3. Significant medical or psychiatric co-morbidity
4. Under 18 years old
Anticipated start date 01/10/2006
Anticipated end date 30/07/2009
Status of trial Ongoing
Patient information material
Target number of participants ~30 - Recruitment ends on the 30/11/2008
Interventions This is a cross-over trial. Each patient will be randomised to one of the two groups:
Group one: Donezepil (5 mg) once daily (od) for five weeks (block one), if this is well tolerated then this will be increased to 10 mg od for five weeks (block two).
Group two: An identical placebo will be provided, to be used in the exact same method as above (blocks four and five).

In between the two groups (block three), there will be a washout period of five weeks.

At blocks two and five, a non drug intervention will also be supplied. During these times, a five week Behavioural Therapy (BT) treatment will also be provided, which will be performed by the patients at their home, and will consist of 30 minutes of a computer-based phonological training program once a day.
Primary outcome measure(s) Correlation between treatment type and changes in the response characteristics of a neurophysiologic measure of auditory discrimination (Mismatch Negativity [MMN]), provoked by language and non-language stimuli, measured using both MEG and fMRI.
Secondary outcome measure(s) Correlation between treatment type and improvements on a language rating scale: the Comprehensive Aphasia Test.
Sources of funding The Wellcome Trust (UK) (grant ref: 075765) - Intermediate Clinical Fellowship
Trial website
Publications
Contact name Dr  Alexander Paul  Leff
  Address Wellcome Department of Imaging Neuroscience
12 Queen Square
  City/town London
  Zip/Postcode WC1N 3BG
  Country United Kingdom
  Tel +44 (0)20 7833 7472
  Fax +44 (0)20 7833 7472
  Email a.leff@fil.ion.ucl.ac.uk
Sponsor Joint UCLH and UCL Biomedical Research Unit (UK)
  Address c/o Dr Victoria Latter, Operations Director
1st Floor, Maple House
149 Tottenham Court Road
  City/town London
  Zip/Postcode W1P 9LL
  Country United Kingdom
  Tel +44 (0)20 7472 6394
  Email v.latter@medsch.ucl.ac.uk
  Sponsor website: http://www.ucl.ac.uk/biomed-r-d/general/about_us.htm#contact
Date applied 10/11/2006
Last edited 11/05/2007
Date ISRCTN assigned 04/12/2006
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