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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT00423228
Registration number
NCT00423228
Ethics application status
Date submitted
17/01/2007
Date registered
18/01/2007
Date last updated
14/01/2015
Titles & IDs
Public title
Efficacy Study of a ZT-1 Implant in Patients Suffering From Alzheimer's Disease
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Scientific title
A Randomised, Double-blind, Double-dummy, Oral Donepezil Controlled Study on the Safety and Efficacy of Repeated Monthly Subcutaneous Injections of a Sustained-release Implant of ZT 1 in Patients With Moderate Alzheimer's Disease
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Secondary ID [1]
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EUDRACT no. 2006-005161-18
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Secondary ID [2]
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DEB-ZTSR-201
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Universal Trial Number (UTN)
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Trial acronym
BRAINz
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Moderate Alzheimer's Disease
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Condition category
Condition code
Neurological
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Alzheimer's disease
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Neurological
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Dementias
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - ZT-1
Treatment: Drugs - Donepezil
Experimental: ZT-1 - ZT-1 (investigational product)
Active Comparator: Donepezil - Donepezil
Treatment: Drugs: ZT-1
Patients in the ZT-1 treatment group will receive ZT 1-1 mg capsules administered p.o. daily during the first month of treatment, followed by ZT-1 implants (9 mg) administered s.c. during the second month of treatment, followed by ZT-1 implants (12 mg) administered s.c. every 4 weeks during months 3 to 6 of treatment. Patients in the ZT-1 treatment group will receive dummy donepezil capsules during months 2 to 6 of the treatment period.
Treatment: Drugs: Donepezil
Patients in the donepezil treatment group will receive donepezil 5 mg capsules administered p.o. during the first month of treatment, followed by donepezil 10 mg/day during months 2 to 6 of the treatment period. Patients in the donepezil treatment group will also receive s.c. injections of dummy ZT 1 implants every 4 weeks during months 2 to 6 of the treatment period.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Change in the MMSE score from baseline to week 25
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Assessment method [1]
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Timepoint [1]
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baseline to week 25
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Secondary outcome [1]
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Responder rate as defined by at least 2 points improvement in the MMSE score;
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Assessment method [1]
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Timepoint [1]
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baseline to week 25
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Secondary outcome [2]
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Change on the ADAS-Cog 11 items subscale;
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Assessment method [2]
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Timepoint [2]
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baseline to week 25
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Secondary outcome [3]
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Change in the NPI-Q;
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Assessment method [3]
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Timepoint [3]
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baseline to week 25
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Secondary outcome [4]
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Change on the IADL scale;
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Assessment method [4]
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Timepoint [4]
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baseline to week 25
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Secondary outcome [5]
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Patient's convenience questionnaire.
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Assessment method [5]
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Timepoint [5]
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baseline to week 25
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Eligibility
Key inclusion criteria
1. Presence of moderately severe probable AD, diagnosed according to the DSM-IV and the
NINCDS-ADRDA criteria;
2. MMSE score = 14 and = 22;
3. Male/female patient aged > 50 years; female patients should be of no child-bearing
potential or postmenopausal (at least one year after last menses);
4. Body mass index (BMI) between 18 and 29 kg/m2 inclusive;
5. Has a caregiver, is living at home or in an assisted living facility, is able to
attend ambulatory study visits;
6. Naïve to donepezil;
7. Has discontinued another AChEI and/or memantine at least 3 months prior to study visit
2 (Day 1);
8. Has a CT or MRI scan excluding another structural brain disease and supporting
diagnosis of AD; CT or MRI scan must have been performed within 6 months prior to
study visit 2 (Day 1, baseline);
9. Fluent in English (mother tongue or working language);
10. Able to communicate well with the Investigator;
11. Physically able to carry out functional tasks;
12. Has given written informed consent together with the caregiver.
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Minimum age
50
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1. Presence of any disabling, severe or life-threatening disease (cardiac, respiratory,
gastro-intestinal, neurological, epileptic, psychiatric, infectious, bone,
endocrinologic);
2. Inability to discontinue at least 2 weeks prior to visit 2 (Day 1) (or within 5 drug
half-lives, whichever is longer) any medication listed as prohibited;
3. Proven or clinically suspected other type of dementia such as vascular dementia,
post-traumatic dementia, fronto-temporal dementia, dementia associated with
Parkinson's Disease, infectious disease HIV, syphilis), folate or vitamin B12
deficiency, hypothyroidism etc.;
4. Significant liver impairment with ASAT, ALAT >=3x the upper normal limit at screening;
5. Significant kidney impairment with serum creatinine >=2x the upper normal limit at
screening;
6. Presence of cardiac rhythm disorder, in particular bradycardia (< 60 bpm), conduction
abnormalities such as AV block; presence of active ischaemia (such as unstable angina
pectoris) or recent myocardial infarction, QT interval = 450 msec at screening, QRS
complex = 110 msec at screening (ECG must be within normal limits at screening);
7. Uncontrolled arterial hypertension i.e. patients with systolic blood pressure (BP)
>=160 mmHg and/or diastolic >=100 mmHg, at screening despite regular medication;
8. Uncontrolled arterial hypotension, i.e. patients with systolic BP = 100 mmHg and/or
presenting a fall of systolic BP = 20 mmHg or a fall of diastolic BP >=10 mmHg after
the 2 min Schellong test at screening;
9. Any concomitant disorder or resultant therapy that is likely to interfere with patient
compliance or his/her participation to the study;
10. Participation in another study with an experimental drug within 3 months before study
visit 2 (Day 1, baseline) or within 5 drug half-lives of the investigational drug
(whichever is the longer);
11. Known peripheral cholinergic intolerance, i.e. with previously prescribed AChEI(s);
12. Known hypersensitivity to any of the test materials or related compounds, including
lactose, present in the donepezil and placebo capsules;
13. Known active use of recreational drug or alcohol dependence, current alcohol abuse;
14. Inability to comply fully with the protocol;
15. Patients who, in the opinion of the Investigator, are considered unsuitable for any
other reason.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/02/2007
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/04/2009
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Sample size
Target
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Accrual to date
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Final
228
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Recruitment in Australia
Recruitment state(s)
NSW,QLD,SA,VIC,WA
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Recruitment hospital [1]
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Central Coast Neuroscience Research - East Gosford
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Recruitment hospital [2]
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Hornsby-Kuring-gai Health Service - Hornsby
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Recruitment hospital [3]
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Southern Neurology - Kogarah
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Recruitment hospital [4]
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The Prince Charles Hospital - Chermside
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Recruitment hospital [5]
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Royal Adelaide Hospital - Adelaïde
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Recruitment hospital [6]
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The Queen Elizabeth Hospital - Woodville
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Recruitment hospital [7]
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St George's Hospital - Kew
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Recruitment hospital [8]
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Austin Health Repatriation Hospital - West Heidelberg
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Recruitment hospital [9]
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Hollywood Specialist Centre - Nedlands (Perth)
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Recruitment postcode(s) [1]
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2250 - East Gosford
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Recruitment postcode(s) [2]
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2077 - Hornsby
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Recruitment postcode(s) [3]
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2217 - Kogarah
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Recruitment postcode(s) [4]
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4032 - Chermside
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Recruitment postcode(s) [5]
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5000 - Adelaïde
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Recruitment postcode(s) [6]
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5011 - Woodville
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Recruitment postcode(s) [7]
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3101 - Kew
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Recruitment postcode(s) [8]
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3081 - West Heidelberg
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Recruitment postcode(s) [9]
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6009 - Nedlands (Perth)
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Recruitment outside Australia
Country [1]
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Canada
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State/province [1]
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Alberta
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Canada
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State/province [2]
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Ontario
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Canada
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State/province [3]
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Quebec
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Canada
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Kelowna
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Country [5]
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Canada
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State/province [5]
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Montréal
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Country [6]
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Canada
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State/province [6]
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Penticton
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Country [7]
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United Kingdom
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State/province [7]
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East Sussex
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Country [8]
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United Kingdom
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State/province [8]
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Scotland
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Country [9]
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United Kingdom
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State/province [9]
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Wales
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Country [10]
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United Kingdom
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State/province [10]
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Blackburn
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Country [11]
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United Kingdom
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London
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Country [12]
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United Kingdom
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Manchester
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United Kingdom
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State/province [13]
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Newcastle upon Tyne
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Country [14]
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United Kingdom
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State/province [14]
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Southampton
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
Debiopharm International SA
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Alzheimer's disease is characterised by memory loss and difficulties with thinking. These
problems may be due to a deficiency in a brain chemical called acetylcholine. Acetylcholine
helps transmit messages between nerve cells. Acetylcholine is degraded by an enzyme called
"acetylcholinesterase". ZT-1 is a new drug derived from a plant extract already used in China
for memory disorders, which blocks the action of the enzyme and restores adequate levels of
acetylcholine.
This study will test the safety and efficacy of ZT-1 in the treatment of patients with
Alzheimer's disease.
BRAINz stands for Better Recollection for Alzheimer's patients with the Implant of ZT-1.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT00423228
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Trial related presentations / publications
Wilkinson D, Roughan L. The BRAINz trial: a novel approach to acetylcholinesterase-inhibitor treatment for Alzheimer's disease. Future Neurol 2(4):379-382,2007.
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Public notes
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Contacts
Principal investigator
Name
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Emmanuel Tamches, MD
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Address
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Debiopharm SA
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Phone
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Fax
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Email
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Contact person for public queries
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT00423228
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