Status:
UNKNOWN
Memantine and Down's Syndrome
Lead Sponsor:
King's College London
Conditions:
Down's Syndrome
Dementia
Eligibility:
All Genders
18+ years
Phase:
NA
Brief Summary
This is a study to assess whether memantine is effective and safe in preventing age related cognitive deterioration and dementia in people with Down's syndrome (DS) age 40 and over. The study will las...
Detailed Description
Over the age of 40, all people with Down's Syndrome have substantial changes in the brain similar to those of Alzheimer's disease and most are at very high risk of developing a clinical dementia with ...
Eligibility Criteria
Inclusion
- Inclusion criteria will be:
- Participants with learning disabilities due to Down's syndrome (DS) confirmed by karyotype. A clinical diagnosis (provided by the participant's general practitioner or hospital specialist) will be accepted if karyotype is not known and participant does not agree to have it tested
- Ages 40 years and over or any age if a diagnosis of dementia is established
- In participants with dementia, the diagnosis will be consistent with the 10th version of the International Classification of Diseases (ICD-10) (World Health Organization \[WHO\], 1992) diagnostic criteria
- Level of speech and comprehension of verbal commands are sufficient to understand and to answer simple requests
- Resident in care facility or community living with a carer who is willing to accept responsibility for supervising the treatment and will provide input to efficacy parameters in accordance with protocol requirements
- Not receiving treatment with memantine currently or in past 4 weeks and responsible clinician not considering treatment with memantine
- Participant willing to take part in study; and carer, with capacity, willing to assent to study and agrees that participant can take part if participant is also willing.
Exclusion
- Exclusion criteria will be:
- Participants known to have sensitivity to memantine
- Severe, unstable or uncontrolled medical or psychiatric conditions apparent from history, physical examination or investigations
- A current diagnosis of primary neurodegenerative disorder other than dementia such as Huntington's disease, etc.
- Uncontrolled epilepsy
- Presence of challenging behaviour likely to preclude the participation during testing
- Presence of severe motor or sensory impairment (severe deafness or blindness) that renders the participant as untestable with the battery of tests used in the study
- Current evidence of delirium
- Severe renal impairment
- Low probability of treatment compliance
- Previous evidence of lack of efficacy or tolerability to memantine
- Taking any of the following substances:
- an investigational drug during the 4 weeks prior to randomization
- a drug known to cause major organ system toxicity during the 4 weeks prior to randomization
- started any new psychotropic during the 4 weeks prior to randomization; participants who had been on a stable dose of psychotropic during the 4 weeks prior to randomization are still eligible.
- memantine during the 6 weeks prior to randomization
- other N-methyl-D-aspartate (NMDA) antagonists: amantadine, ketamine, and dextromethorphan
- barbiturates and primidone
- baclofen and dantrolen
- dextromethorphan
- antimuscarinics
Key Trial Info
Start Date :
October 1 2005
Trial Type :
INTERVENTIONAL
End Date :
Estimated Enrollment :
180 Patients enrolled
Trial Details
Trial ID
NCT00240760
Start Date
October 1 2005
Last Update
February 20 2006
Active Locations (2)
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1
Monyhull Hall Road
Birmingham, Birmingham, United Kingdom, B30 3QQ
2
Northgate Hospital
Morpeth, Northumberland, United Kingdom, NE61 3BP