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Trial registered on ANZCTR


Registration number
ACTRN12619000738123
Ethics application status
Approved
Date submitted
6/05/2019
Date registered
16/05/2019
Date last updated
24/04/2020
Date data sharing statement initially provided
16/05/2019
Type of registration
Prospectively registered

Titles & IDs
Public title
Validating magnetic resonance imaging (MRI) tools to measure brain inflammation using a typhoid vaccine in healthy adults
Scientific title
Validating MRI tools to measure neuroinflammation in vivo using a typhoid vaccine in healthy adults
Secondary ID [1] 298066 0
None
Universal Trial Number (UTN)
U1111-1224-8965
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Immunological response 312622 0
Condition category
Condition code
Inflammatory and Immune System 311121 311121 0 0
Other inflammatory or immune system disorders
Neurological 311122 311122 0 0
Studies of the normal brain and nervous system

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Salmonella typhi Vi polysaccharide vaccine: immediately, after the baseline MRI scan, 0.5 ml solution once via intramuscular injection in the deltoid (upper arm) of the non-dominant arm, containing 0.025 mg of purified Vi capsular polysaccharide of Salmonella typhi (Ty 2 strain). A second MRI will be conducted 180 minutes after.
Intervention code [1] 314328 0
Treatment: Drugs
Comparator / control treatment
Placebo: 0.5 ml 0.9% saline solution administered once via intramuscular injection
Control group
Placebo

Outcomes
Primary outcome [1] 319893 0
Change in magnetisation transfer exchange from magnetisation-weighted MRI scan
Timepoint [1] 319893 0
3 hours post-vaccine administration
Primary outcome [2] 319894 0
Change in brain temperature measured by echo-planar spectroscopic imaging MRI scan
Timepoint [2] 319894 0
3 hours post-vaccine administration
Primary outcome [3] 319895 0
Change in diffusion-weighted measures derived from diffusion-weighted MRI scans
Timepoint [3] 319895 0
3 hours post-vaccine administration
Secondary outcome [1] 370039 0
Change in peripheral interleukin-1 from blood samples, measured using enzyme-linked immunosorbent assay (ELISA)
Timepoint [1] 370039 0
Three hours post-vaccine administration
Secondary outcome [2] 370040 0
Change in peripheral interleukin-6 from blood samples, measured using ELISA
Timepoint [2] 370040 0
Three hours post-vaccine administration
Secondary outcome [3] 370424 0
Change in peripheral interleukin-10 from blood samples, measured using ELISA
Timepoint [3] 370424 0
Three hours post-vaccination administration
Secondary outcome [4] 370425 0
Change in peripheral tumour necrosis factor from blood samples, measured using ELISA
Timepoint [4] 370425 0
Three hours post-vaccination administration
Secondary outcome [5] 370426 0
Change in mood states as assessed by the Profile of Mood States (POMS)
Timepoint [5] 370426 0
Three hours post-vaccination administration

Eligibility
Key inclusion criteria
• Participant is willing and able to give informed consent for participation in the study
• In the investigators' opinion, is able and willing to comply with all study requirements
Minimum age
18 Years
Maximum age
55 Years
Gender
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
• Any physical or psychiatric illness e.g. rheumatologic/autoimmune diseases, major depressive disorder
• Current use of any prescribed medication e.g. anti-inflammatory, immunomodulatory medications
• Recreation drug use in the previous six months
• Smoking
• Contraindications for a typhoid vaccine (known systemic hypersensitivity reaction to any component of TYPHIM Vi or a life-threatening reaction after previous administration of the vaccine or vaccine containing the same substance)
• Receiving a typhoid vaccine within the past three years
• Receiving any other vaccines within one month
• Body-weight <50kg or >120kg.
• Inability to speak or read English
• Contraindications for MRI scanning
• Elevated body temperature (>38.0°C) and/or peripheral signs of acute infection/illness (e.g. sneezing, rhinorrhoea) on the day of the study – can be rescheduled/rescreened at a later date
• Any other condition judged by the study team as likely to impact on the ability of the participant to complete the study

Study design
Purpose of the study
Diagnosis
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation involved contacting the holder of the allocation schedule who was "off-site"
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Computerised sequence generation
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s

The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Not Applicable
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Not yet recruiting
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment outside Australia
Country [1] 21455 0
New Zealand
State/province [1] 21455 0
Auckland

Funding & Sponsors
Funding source category [1] 302597 0
Charities/Societies/Foundations
Name [1] 302597 0
Neurological Foundation of New Zealand
Address [1] 302597 0
PO Box 110022
Auckland Hospital
Auckland 1148
Country [1] 302597 0
New Zealand
Funding source category [2] 302688 0
Charities/Societies/Foundations
Name [2] 302688 0
Oakley Mental Health Research Foundation
Address [2] 302688 0
PO Box 302499
North Harbour
Auckland 0751
Country [2] 302688 0
New Zealand
Funding source category [3] 302689 0
Charities/Societies/Foundations
Name [3] 302689 0
Maurice and Phyllis Paykel Trust
Address [3] 302689 0
PO Box 110008
Auckland Hospital
Auckland 1148
Country [3] 302689 0
New Zealand
Funding source category [4] 302690 0
Charities/Societies/Foundations
Name [4] 302690 0
New Zealand Pharmacy Education and Research Foundation
Address [4] 302690 0
PO Box 11640
Manners Street
Wellington 6142
Country [4] 302690 0
New Zealand
Primary sponsor type
University
Name
The University of Auckland
Address
Private Bag 92019
Auckland 1142
Country
New Zealand
Secondary sponsor category [1] 302620 0
None
Name [1] 302620 0
Address [1] 302620 0
Country [1] 302620 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 303232 0
Northern B Health and Disability Ethics Committee
Ethics committee address [1] 303232 0
Ministry of Health
133 Molesworth Street
PO Box 5013
Wellington
6011
Ethics committee country [1] 303232 0
New Zealand
Date submitted for ethics approval [1] 303232 0
16/01/2019
Approval date [1] 303232 0
06/03/2019
Ethics approval number [1] 303232 0

Summary
Brief summary
Recent research suggests that inflammation in the brain may play a role in neurological and psychiatric disorders such as Alzheimer’s disease, Parkinson’s disease, depression, stroke, and multiple sclerosis. However, at this time, there are no accepted methods to reliably measure these inflammatory processes in patients. Therefore, this project aims to develop and validate magnetic resonance imaging (MRI) tools for measuring inflammation in the human brain in different neurological conditions.
In this study, we aim to:
• Confirm that MRI is an effective technique for detecting brain inflammation
• Identify potential biomarkers for brain inflammation.
Thirty healthy volunteers will be invited to participate in a double-blind, placebo-controlled study and undergo MRI scans before, and three hours after being given a typhoid vaccine or placebo. This safe, experimental model of human brain inflammation will allow us to objectively measure the initial biomarkers of inflammation in the absence of underlying neurodegenerative disease and help us further understand the causes of many conditions where inflammation is involved, potentially identifying new targets for treatment.
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 92938 0
Dr Joanne Lin
Address 92938 0
School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
Country 92938 0
New Zealand
Phone 92938 0
+64 9 923 2255
Fax 92938 0
Email 92938 0
joanne.lin@auckland.ac.nz
Contact person for public queries
Name 92939 0
Dr Joanne Lin
Address 92939 0
School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
Country 92939 0
New Zealand
Phone 92939 0
+64 9 923 2255
Fax 92939 0
Email 92939 0
joanne.lin@auckland.ac.nz
Contact person for scientific queries
Name 92940 0
Dr Joanne Lin
Address 92940 0
School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
Country 92940 0
New Zealand
Phone 92940 0
+64 9 923 2255
Fax 92940 0
Email 92940 0
joanne.lin@auckland.ac.nz

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment
Public sharing of data has not been approved by the ethics committee
What supporting documents are/will be available?
No other documents available
Summary results
No Results