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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Type of registration
Prospectively registered

Titles & IDs
Public title
Imaging of Retinal Amyloid Plaques in Alzheimer’s disease - Middle aged Controls Study
Scientific title
A study to evaluate retinal amyloid plaques in a middle-aged control cohort, utilizing a retinal imaging system and curcumin labeling
Secondary ID [1] 286915 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Alzheimer's Disease 295336 0
Condition category
Condition code
Neurological 295603 295603 0 0
Alzheimer's disease

Study type
Description of intervention(s) / exposure
Suitable participants will receive a 7 day course of Curcumin and an 8 day course of over the counter Vitamin E 500IU (taken as one capsule once per day)

Curcumin will be supplied in the form of Longvida (Registered Trademark) sachets. Participants will take 20 grams of Longvida (Registered Trademark) each morning before breakfast for 7 days. This is equivalent to taking 4 grams of Curcumin per day. The sachets may be mixed with a low-lactose drink (supplied). Longvida, (Registered Trademark), is currently not registered for this indication in Australia and is therefore considered an investigational or experimental product.

At each clinic visit, participants will have a blood test and have photos taken of their eye retina's. To take the photos, pupil dilating eye drops will be instilled into the eyes. Photos will be taken with a scanning laser opthalmoscope.

In addition, participants will be asked to complete a medication diary during the course of the Curcumin/Vitamin E to record all the medication intake. All Curcumin and Vitamin E containers should be returned to the clinic even if they are empty.
Intervention code [1] 292101 0
Early detection / Screening
Comparator / control treatment
All suitable participants will receive Curcumin and Vitamin E.
Control group

Primary outcome [1] 295317 0
The primary endpoint is to investigate whether retinal amyloid plaques are evident in a younger control cohort, utilizing a retinal imaging system and curcumin labeling in participants.
Timepoint [1] 295317 0
Participants will be screened for the presence or absence of retinal amyloid plaques after 7 days of taking the investigational product. Baseline images will be collected at day 0, then more images taken after 7 days of curcumin dosing.
Secondary outcome [1] 315340 0
The second objective is to compare retinal Amyloid Beta protein plaque burden with brain Amyloid Beta protein plaque burden.
Timepoint [1] 315340 0
Comparison will be made between the retinal images (day 7) and the participant's most recent PET scan (PET scan will be conducted as part of the AIBL study). The AIBL study is not registered
Secondary outcome [2] 315341 0
The effect of other parameters on the retina-brain amyloid association, including ocular history, blood pharmacokinetics, demographics, and APOE genotype. Participant's details regarding demographics and ocular hsitory will be collected by interview with a study doctor at visit 1 (day 0). APOE gentoype information was collected in the AIBL study from a blood test. Pharmacokinetic information will be obtained from the blood tests conducted during this study with blood collection occurring at day 0 (visit 1) and day 7 (visit 2)
Timepoint [2] 315341 0
Details of other parameters will be collected at visit 1 (day 0, also known as baseline) and visit 2 (after 7 days of curcumin dosing) of this study. APOE gentoype information and brain plaque burden is collected during the course of the AIBL study.

Key inclusion criteria
1. Participant must be cognitive normal (as assessed in the AIBL study).
2. Participant must be able to provide written informed consent in English.
3. Male or Female age 40-60 years.
4. Participants must have had a brain amyloid imaging (PET scan) or plan to undertake a PET scan as part of the AIBL study within 6 months of completing the NVI003.B study.
Minimum age
40 Years
Maximum age
60 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
1. The participant has advanced retinal disease, advanced cataracts or other advanced ocular conditions that in the opinion of the investigator are likely to affect obtaining clear images of the retina.
2. Participant has had prior ocular surgery within 2 months of planned retinal imaging, or is still taking post-operative ocular medications at first day of retinal imaging.
3. Participants with known current gallstones.
4. Participants who have undergone angioplasty in the last 3 months.
5 Participants who have had major surgery within 4 weeks of trial inclusion or planned surgical procedure during the trial period.
6. Significant haemorrhagic event (in past 12 months) or cardiovascular disease (ie, history of myocardial infarction within past 6 months of trial inclusion , congestive cardiac failure NYHA grade II ).
7. Participant with retinitis pigmentosa.
8. Participants with current bile duct obstruction (participants who have undergone a cholecystectomy will be considered eligible).
9. Participants with significant uncontrolled gastrointestinal disorders (including stomach ulcers and uncontrolled hyperacidity disorders) which in the opinion of the investigator will be aggravated by the intake of curcumin.
10. Participants with known allergy to Tropicamide eye drops, vitamin E or turmeric
11. Women who are of child bearing potential who do not agree to use reliable contraception from day 0 until at least 6 weeks after the last study drug administration. Pregnant or lactating females are not eligible. Women of childbearing potential must have a negative pregnancy test done prior to commencing study drug.
12. Participation in another clinical trial within 30 days prior to visit one (with the exception of the AIBL trial and behavioural interventions). Participants enrolled in clinical trials involving vitamins, herbal or dietary products may be eligible on a case-by-case following discussion with the medical monitor.

Study design
Purpose of the study
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?

Intervention assignment
Single group
Other design features
Phase 2
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 3925 0
McCusker Alzheimer's Research Foundation - Nedlands
Recruitment postcode(s) [1] 9840 0
6009 - Nedlands

Funding & Sponsors
Funding source category [1] 291474 0
Commercial sector/Industry
Name [1] 291474 0
Neuro Vision Inc
Address [1] 291474 0
Suite 250
1395 Garden Highway
Sacramento CA 95833
Country [1] 291474 0
United States of America
Primary sponsor type
McCusker Alzheimer's Disease Foundation
115 Monash Ave
Nedlands WA 6009
Secondary sponsor category [1] 290152 0
Commercial sector/Industry
Name [1] 290152 0
Neuro Vision Inc
Address [1] 290152 0
Suite 250
1395 Garden Highway
Sacramento CA 95833
Country [1] 290152 0
United States of America
Secondary sponsor category [2] 290153 0
Government body
Name [2] 290153 0
Address [2] 290153 0
Business Development Manager
Neurodegenerative Diseases, Preventative Health Flagship
343 Royal Parade
Country [2] 290153 0

Ethics approval
Ethics application status
Ethics committee name [1] 293022 0
Hollywood Private Hospital Research Ethics Committee
Ethics committee address [1] 293022 0
Monash Ave
Ethics committee country [1] 293022 0
Date submitted for ethics approval [1] 293022 0
Approval date [1] 293022 0
Ethics approval number [1] 293022 0

Brief summary
Alzheimer's Disease is characterised by the presence of beta-amyloid plaques in the brain. More recently, it has been proposed that these plaques may first appear in the retina, at the back of the eye before the plaques are detectable in the brain.

Curcumin, found in the spice Tumeric, is a food additive that has molecular and optical properties that enhance the ability of the image amyloid plaques in the retina. Participants will be asked to have a eye imaging done before and after taking curcumin for 7 days.

The presence/absence of plaques in the eye's retina will be correlated with the results obtained from participation in the AIBL study.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 58114 0
Prof Roger Clarnette
Address 58114 0
McCusker Alzheimer's Research Foundation
115 Monash Ave
Nedlands WA 6009
Country 58114 0
Phone 58114 0
+61 8 9389 6433
Fax 58114 0
Email 58114 0
Contact person for public queries
Name 58115 0
Mr Kevin Taddei
Address 58115 0
McCusker Alzheimer's Research Foundation
2/142 Striling Highway
Nedlands WA 6009
Country 58115 0
Phone 58115 0
+61 8 6304 3966
Fax 58115 0
Email 58115 0
Contact person for scientific queries
Name 58116 0
Dr Shaun Frost
Address 58116 0
CSIRO DPAS WA Australian e-Health Research Centre
Private bag 5
Country 58116 0
Phone 58116 0
+61 8 9333 6137
Fax 58116 0
Email 58116 0

No information has been provided regarding IPD availability
Summary results
Have study results been published in a peer-reviewed journal?
Other publications
Have study results been made publicly available in another format?
Results – basic reporting
Results – plain English summary