Effect of methylphenidate on neural mechanisms underlying attention deficit after closed head injury
ISRCTN | ISRCTN27103516 |
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DOI | https://doi.org/10.1186/ISRCTN27103516 |
Secondary identifying numbers | N0234108360 |
- Submission date
- 12/09/2003
- Registration date
- 12/09/2003
- Last edited
- 25/05/2016
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr Dolores Polo
Scientific
Scientific
Burden Neurological Institute
North Bristol NHS Trust
Frenchay Hospital
Frenchay
Bristol
BS16 1JB
United Kingdom
Phone | +44 (0)117 918 6723 |
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dolorespolo@hotmail.com |
Study information
Study design | Randomised double-blind placebo controlled crossover group open trial |
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Primary study design | Interventional |
Secondary study design | Randomised controlled trial |
Study setting(s) | Not specified |
Study type | Treatment |
Scientific title | Effect of methylphenidate on neural mechanisms underlying attention deficit after closed head injury |
Study objectives | Do event-related potentials provide objective markers to monitor drug effects in ameliorating attention deficits after closed head injury? |
Ethics approval(s) | Not provided at time of registration |
Health condition(s) or problem(s) studied | Attention deficit after closed head injury |
Intervention | Double-blind, placebo controlled, crossover design and open trials (pilot study). The study is aimed to evaluate the effectiveness of a neurophysiological method, Event-related brain potentials (ERPs), for monitoring the action of methylphenidate in normalising attention deficits after closed head injury. The drug will be administered in a prospective, two-group, randomised, double-blind, placebo-controlled, crossover design. Forty subjects who sustained a closed head injury will be examined in three occasions: a drug-free baseline session and after a counterbalanced treatment of 6 weeks course each of methylphenidate and placebo (lactose). Treatments will be separated by 1 week of wash-out to minimise carryover effects of medication. Drugs will be given orally. The dose of methylphenidate/placebo will start at 20 mg/day and will increase until reaching clinical effectiveness, up to 60 mg/day. Each examination will consist in the recording of a set of ERPs associated with attention function, from the scalp. Traditional behavioural and neuropsychological measures of attention will be also obtained from each patient. |
Intervention type | Drug |
Pharmaceutical study type(s) | |
Phase | Not Specified |
Drug / device / biological / vaccine name(s) | Methylphenidate |
Primary outcome measure | Not provided at time of registration |
Secondary outcome measures | Not provided at time of registration |
Overall study start date | 01/05/2003 |
Completion date | 30/04/2006 |
Eligibility
Participant type(s) | Patient |
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Age group | Adult |
Sex | Both |
Target number of participants | 20 |
Key inclusion criteria | Closed head injured patients |
Key exclusion criteria | 1. Current history of neurological and/or psychiatric disorders 2. History of movement disorders 3. Epilepsy 4. Current use of MAO inhibitors or coumarin anticoagulants 5. Drug abuse 6. Problems of galactose intolerance 7. The Lapp lactase deficiency or glusoce-galactose malabsorption 8. Severe hypertension 9. Cardiac arrhythmia 10. Angina pectoris 11. Hyperthyroidism 12. Glaucoma 13. Thyrotoxicosis 14. Pregnancy 15. Severe hand motor deficit |
Date of first enrolment | 01/05/2003 |
Date of final enrolment | 30/04/2006 |
Locations
Countries of recruitment
- England
- United Kingdom
Study participating centre
Burden Neurological Institute
Bristol
BS16 1JB
United Kingdom
BS16 1JB
United Kingdom
Sponsor information
Department of Health (UK)
Government
Government
Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom
Website | http://www.doh.gov.uk |
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Funders
Funder type
Charity
The Big Lottery Fund (UK)
No information available
Results and Publications
Intention to publish date | |
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Individual participant data (IPD) Intention to share | No |
IPD sharing plan summary | Not provided at time of registration |
Publication and dissemination plan | Not provided at time of registration |
IPD sharing plan |
Editorial Notes
25/05/2016: No publications found, verifying study status with principal investigator