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Trial registered on ANZCTR


Registration number
ACTRN12619001226190
Ethics application status
Approved
Date submitted
26/07/2019
Date registered
5/09/2019
Date last updated
15/02/2022
Date data sharing statement initially provided
5/09/2019
Type of registration
Retrospectively registered

Titles & IDs
Public title
An observational study of concussion in adults to improve recovery and outcomes
Scientific title
A validation study to predict poor outcomes following mild traumatic brain injury
Secondary ID [1] 298652 0
Nil
Universal Trial Number (UTN)
U1111-1236-4142
Trial acronym
CREST - Concussion REcovery STudy
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Concussion 313544 0
Persisting Post-concussion Symptoms 313545 0
Condition category
Condition code
Neurological 311978 311978 0 0
Other neurological disorders

Intervention/exposure
Study type
Observational
Patient registry
False
Target follow-up duration
Target follow-up type
Description of intervention(s) / exposure
Phase I: All participants will complete a 30-minute questionnaire about their concussion injury, which will take place over the phone within 7 days of their injury. Questions are around the nature of the injury, as well as the person's symptoms, particular comorbidities, medical history, and general health and lifestyle.

Phase II: Following the phone questionnaire, eligible participants will be invited to complete a more comprehensive series of tests, including an exercise tolerance test, neuropsychological tests, blood and saliva biomarker tests, quantitative electoencephalography (qEEG) and an MRI scan. This occurs on site at the research centre clinic, and takes 2-3 hours.

All participants are followed up by phone at 1-, 3-, 6- and 12-months following their injury. The follow-up questionnaire is based around self-assessment of symptoms and takes around 10 minutes. The total duration of participation is 1 year post-injury.
Intervention code [1] 314915 0
Diagnosis / Prognosis
Comparator / control treatment
No control group
Control group
Uncontrolled

Outcomes
Primary outcome [1] 320854 0
Existence of Persistent Post-concussive Symptoms (PPCS) as determined by overall score on the Post-concussion symptom scale (PCSS)
Timepoint [1] 320854 0
1 (primary timepoint), 3, 6 and 12-months following the date of the concussion injury
Secondary outcome [1] 374327 0
Indexed score on neuropsychological tests
Timepoint [1] 374327 0
Within 7 days post-injury
Secondary outcome [2] 374328 0
Heart rate threshold on Buffalo Concussion Bike Test
Timepoint [2] 374328 0
Within 7 days post-injury
Secondary outcome [3] 374330 0
Abnormality on MRI
Timepoint [3] 374330 0
Within 7 days post-injury
Secondary outcome [4] 374331 0
Increase in glial fibrillary acidic protein in blood
Timepoint [4] 374331 0
Within 7 days post-injury
Secondary outcome [5] 406295 0
changes in other blood biomarkers as an exploratory outcome,
Timepoint [5] 406295 0
within 7 days post-injury
Secondary outcome [6] 406296 0
changes in networks assessed using qEEG
Timepoint [6] 406296 0
within 7 days post-injury
Secondary outcome [7] 406297 0
Vestibular ocular motor test VOMS
Timepoint [7] 406297 0
within 7 days post-injury
Secondary outcome [8] 406298 0
Changes in saliva biomarkers
Timepoint [8] 406298 0
within 7 days post-injury

Eligibility
Key inclusion criteria
i) Clinical diagnosis of concussion made by a medical practitioner
ii) Able to be recruited within 7 days of head injury with symptoms attributable to that injury
iii) Post-Traumatic Amnesia of less than 24 hours
iv) No significant findings on acute brain CT scan, or CT scan not required
Minimum age
18 Years
Maximum age
65 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
All participants will complete Phase I. Eligible participants that have completed Phase I will complete Phase II, up to a maximum of 120 participants.

Phase I Exclusion Criteria:
i) Glasgow Coma Scale <14 at the time of initial assessment
ii) Significant history of pre-existing conditions that would interfere with outcome assessment and follow-up (eg. Substance abuse/alcohol abuse, homelessness, terminal illness)
iii) Significant debilitating pre-existing diagnosed mental health disorder that would interfere with neuropsychological and possibly blood biomarker outcome measures or follow up (eg schizophrenia, bipolar disorder)
iv) Significant pre-existing neurological condition which may interfere with ability to complete outcome measures or follow up (eg. Stroke, dementia)
v) Pre-existing cognitive impairment such as intellectual disability which may interfere with ability to undertake neuropsychological examination
vi) Non-English speakers or poor English language skills which may interfere with ability to undertake neuropsychological examination
vii) Pregnant women
viii) Prisoners in custody or people known to be involved in illegal activity
ix) Deemed unlikely to comply with 28-day follow up e.g. homeless, alcohol dependence.
x) Head injury deemed to be entirely due to primary seizure.

Phase II Exclusion Criteria:
i) Significant other physical trauma that would interfere with physical and/or biochemical outcome assessments and follow up (eg lower limb injuries that would compromise balance or exercise bike testing, or cause changes in blood biomarkers)
ii) Any pre-existing heart conditions that may compromise ability to complete an exercise tolerance test
iii) Epilepsy or history of seizure
iv) Meets exclusion criteria to undertake MRI, which can be any of the following:
• Has cardiac pacemaker or pacing wire in situ
• Has metal surgical clips or staples of any kind (particularly aneurysm clips) in situ
• Has had lap band surgery
• Has electronic inner ear implants (bionic ears)
• Has metal fragments in your eyes (past or present)
• Has electronic stimulators
• Has implanted pumps
• Has metal pins or rods in bones
• Has an IUCD (intrauterine contraceptive device) fitted
• Has shrapnel, bullets or foreign bodies



Study design
Purpose
Screening
Duration
Longitudinal
Selection
Defined population
Timing
Prospective
Statistical methods / analysis
Baseline characteristics will be compared between men and women using Chi-square tests for categorical variables and t-tests for continuous variables. The analyses will be repeated by age, category of injury (mild, moderate, severe), outcome (PPCS or no PPCS), nature of injury (single event or sequelae), and symptoms at presentation.

This is the first registry of its kind in Western Australia. As such there is no existing data to extrapolate power calculations from. However, based on similar research in other countries, feasible outcomes can be generated from population sizes as low as 37 individuals, through to large longitudinal cohorts of more than 10,000.

Recruitment
Recruitment status
Recruiting
Date of first participant enrolment
Anticipated
30/08/2019
Actual
5/08/2019
Date of last participant enrolment
Anticipated
31/07/2022
Actual
Date of last data collection
Anticipated
31/07/2022
Actual
Sample size
Target
500
Accrual to date
161
Final
Recruitment in Australia
Recruitment state(s)
WA
Recruitment hospital [1] 14317 0
Royal Perth Hospital - Perth
Recruitment hospital [2] 21732 0
Sir Charles Gairdner Hospital - Nedlands
Recruitment hospital [3] 21733 0
Fiona Stanley Hospital - Murdoch
Recruitment hospital [4] 21734 0
St John of God Hospital, Murdoch - Murdoch
Recruitment hospital [5] 21735 0
St John of God Midland Public Hospital - Midland
Recruitment hospital [6] 21736 0
Rockingham General Hospital - Cooloongup
Recruitment hospital [7] 21737 0
Joondalup Health Campus - Joondalup
Recruitment hospital [8] 21738 0
Bunbury Hospital - Bunbury
Recruitment hospital [9] 21739 0
Armadale Kelmscott Memorial Hospital - Armadale
Recruitment hospital [10] 21740 0
Geraldton Hospital - Geraldton
Recruitment postcode(s) [1] 27319 0
6000 - Perth
Recruitment postcode(s) [2] 36788 0
6009 - Nedlands
Recruitment postcode(s) [3] 36789 0
6150 - Murdoch
Recruitment postcode(s) [4] 36790 0
6056 - Midland
Recruitment postcode(s) [5] 36791 0
6168 - Cooloongup
Recruitment postcode(s) [6] 36792 0
6027 - Joondalup
Recruitment postcode(s) [7] 36793 0
6230 - Bunbury
Recruitment postcode(s) [8] 36794 0
6112 - Armadale
Recruitment postcode(s) [9] 36795 0
6530 - Geraldton

Funding & Sponsors
Funding source category [1] 303190 0
University
Name [1] 303190 0
Curtin University
Country [1] 303190 0
Australia
Funding source category [2] 303402 0
Charities/Societies/Foundations
Name [2] 303402 0
Perron Institute for Neurological Research and Translation
Country [2] 303402 0
Australia
Primary sponsor type
University
Name
Curtin University
Address
The Curtin Health Innovation and Research Institute (CHIRI)
Building 305, Curtin University, Kent Street, Bentley WA 6102
Country
Australia
Secondary sponsor category [1] 303444 0
None
Name [1] 303444 0
Address [1] 303444 0
Country [1] 303444 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 303754 0
Royal Perth Hospital Human Research Ethics Committee
Ethics committee address [1] 303754 0
Ethics committee country [1] 303754 0
Australia
Date submitted for ethics approval [1] 303754 0
Approval date [1] 303754 0
05/04/2019
Ethics approval number [1] 303754 0
RGS0000003024
Ethics committee name [2] 303931 0
Curtin University Human Research Ethics Committee
Ethics committee address [2] 303931 0
Ethics committee country [2] 303931 0
Australia
Date submitted for ethics approval [2] 303931 0
Approval date [2] 303931 0
17/04/2019
Ethics approval number [2] 303931 0
HRE2019-0209

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 94678 0
Prof Melinda Fitzgerald
Address 94678 0
Level 3
Sarich Neuroscience Research Institute
8 Verdun St, Nedlands, 6009 WA
Australia
Country 94678 0
Australia
Phone 94678 0
+61 08 64570514
Fax 94678 0
Email 94678 0
lindy.fitzgerald@curtin.edu.au
Contact person for public queries
Name 94679 0
Melinda Fitzgerald
Address 94679 0
Level 3
Sarich Neuroscience Research Institute
8 Verdun St, Nedlands, 6009 WA
Australia
Country 94679 0
Australia
Phone 94679 0
+61 08 64570514
Fax 94679 0
Email 94679 0
lindy.fitzgerald@curtin.edu.au
Contact person for scientific queries
Name 94680 0
Melinda Fitzgerald
Address 94680 0
Level 3
Sarich Neuroscience Research Institute
8 Verdun St, Nedlands, 6009 WA
Australia
Country 94680 0
Australia
Phone 94680 0
+61 08 64570514
Fax 94680 0
Email 94680 0
lindy.fitzgerald@curtin.edu.au

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment
The Human Research Ethics Committee requires that all data is held securely within the research environment of the Principle Investigator. Only aggregate data can be shared.


What supporting documents are/will be available?

Doc. No.TypeCitationLinkEmailOther DetailsAttachment
15086Study protocol    377905-(Uploaded-31-01-2022-16-35-13)-Study-related document.pdf



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
No additional documents have been identified.