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Randomised double-blind placebo controlled trial of effect of Ginkgo biloba on cognitive function in mild-moderate dementia

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN45577048
Enrollment
200
Registered
2002-08-02
Start date
2003-04-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dementia Nervous System Diseases Dementia

Interventions

1. The active intervention will be concentrated, standardised Ginkgo biloba extract (25% active Ginkgo-flavoneglycosides), prepared according to accepted guidelines in a 60 mg tablet (EGB-761, Schwabe

Sponsors

Alzheimer's Society (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Aged 55 years and over 2. Clinician's diagnosis of dementia 3. Presence of a carer 4. Consent of patient and carer 5. Sufficient command of English to complete questionnaires 6. Mini Mental State Examination (MMSE-23) score of 15 - 24

Exclusion criteria

Exclusion criteria: 1. Commencement of acetylcholinesterase therapy within two months of recruitment 2. Current anticoagulant therapy 3. Abnormal clotting profile

Design outcomes

Primary

MeasureTime frame
Alzheimer's Disease Assessment Scale Cognitive Subscale (ADAS-cog) at six months.

Secondary

MeasureTime frame
All at six months: 1. Participant: Quality of Life scale in Alzheimer?s disease (QoL-AD), Neuropsychiatric Inventory questionnaire (NPI), Geriatric Evaluation by Relative's Rating Instrument (GERRI), adverse events 2. Carer: European Quality of life questionnaire (EQ-5D), Zarit caregiver Burden Interview (ZBI)

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 7, 2026