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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Date data sharing statement initially provided
Date results information initially provided
Type of registration
Prospectively registered

Titles & IDs
Public title
A pilot trial of a smartphone application to support the mental health of young apprentices
Scientific title
A pilot trial of a smartphone application to support the mental health of young apprentices
Secondary ID [1] 295914 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
depression 309389 0
anxiety 309390 0
Wellbeing 309391 0
Resilience 309392 0
Work performance 309393 0
Condition category
Condition code
Mental Health 308248 308248 0 0
Mental Health 308249 308249 0 0

Study type
Description of intervention(s) / exposure
HeadGear is a smartphone application-based intervention centred on behavioural activation and mindfulness therapy. The main therapeutic component of the HeadGear app takes the form of a 30-day challenge in which users complete one ‘mission’ daily. These ‘missions’ include psychoeducational videos on coping skills/resiliency, mindfulness, and behavioural activation; mindfulness exercises; value-driven activity planning, goal-setting, and review; and coping skill development (problem solving, sleep, grounding, alcohol use, assertiveness, and training in adaptive forms of coping). The first daily challenge will involve the completion of a risk calculator, which will assess and provide participants with personalised feedback regarding their risk for future mental health issues. The risk calculator is developed from the validated HILDA risk algorithm for future distress in working Australian adults [1]. The risk factor items are based on participant self-report. The HILDA risk items include: age, gender, Aboriginal and Torres Strait Islander status, active carer, freedom to decide work, satisfaction with hours worked, satisfaction with employment opportunities, three or more times physical activity, alcohol use, episodes of distress in the previous two years, satisfaction with health, satisfaction with the neighbourhood, satisfaction with partner, satisfaction with the way tasks are divided with partner, have someone to confide in, feeling being pushed around, and English as a second language. The HILDA questions and response items were replicated from the original items included in the HILDA survey, apart from age, which is measured here as a continuous measure. Users will receive personalised risk feedback immediately after completing the risk calculator. The personalised risk feedback involves an interactive chart which displays the current risk estimate of developing mental ill-health within the next year, the lowest risk possible, and risk factors for targeting. Other components of the app include a mood monitoring widget, a toolbox of skills (which is built from the challenge as it is completed), and support service helplines, and links to resources for apprentices.

Participants will be encouraged to use the app at least once a day for thirty days. The 'challenges' take 5–10 minutes to complete.
As this is an unguided app, no administration/instruction will be delivered.
Data on adherence and usage will be collected via the app itself.

1. Fernandez A, Salvador-Carulla L, Choi I, Calvo R, Harvey SB, Glozier N. Development and validation of a prediction algorithm for the onset of common mental disorders in a working population. Australian & New Zealand Journal of Psychiatry. 2017;52(1):47-58
Intervention code [1] 312239 0
Comparator / control treatment
no control group
Control group

Primary outcome [1] 307222 0
Depression symptom change as measured by the patient health questionnaire (PHQ-9)
Timepoint [1] 307222 0
5weeks post baseline
Secondary outcome [1] 351160 0
Anxiety symptom change as measured by the Generalized Anxiety Disorder 7-item (GAD-7) scale.
Timepoint [1] 351160 0
5 weeks post-baseline
Secondary outcome [2] 351161 0
App acceptability as measured by app usage and a composite set of open feedback items via a study-specific questionnaire,
Timepoint [2] 351161 0
5 weeks post-baseline
Secondary outcome [3] 351162 0
Confidence in managing stressors as measured by items of the TENS questionnaire
Timepoint [3] 351162 0
5 weeks post-baseline
Secondary outcome [4] 351346 0
Change in work performance as measured by the Health and Work Performance Questionnaire
Timepoint [4] 351346 0
5-weeks post baseline
Secondary outcome [5] 351347 0
Wellbeing change as measured by the WHO (Five) Well-being Index (WHO5)
Timepoint [5] 351347 0
5 weeks post-baseline

Key inclusion criteria
Aged between 16 to 30, resident in Australia, enrolled in an apprenticeship program, have a valid email address and mobile number, owning an Apple or Android- operating smartphone.
Minimum age
16 Years
Maximum age
30 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
inability to comprehend English, failure to provide phone number or email.

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
Not Applicable
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)

Funding & Sponsors
Funding source category [1] 300511 0
Name [1] 300511 0
Address [1] 300511 0
UNSW, Kensington, NSW 2052
Country [1] 300511 0
Funding source category [2] 300512 0
Commercial sector/Industry
Name [2] 300512 0
Safework NSW
Address [2] 300512 0
Canberra ACT 2601
Country [2] 300512 0
Funding source category [3] 300556 0
Name [3] 300556 0
Univerity of Sydney
Address [3] 300556 0
University of Sydney, Camperdown NSW 2006
Country [3] 300556 0
Primary sponsor type
Mark Deady
Black Dog Institute, UNSW, Hospital Rd, NSW 2031
Secondary sponsor category [1] 299986 0
Name [1] 299986 0
Isabella Choi
Address [1] 299986 0
University of Sydney, Camperdown, NSW 2006
Country [1] 299986 0

Ethics approval
Ethics application status
Ethics committee name [1] 301302 0
University of Sydney Human Research Ethics Committee
Ethics committee address [1] 301302 0
Camperdown, 2006 NSW
Ethics committee country [1] 301302 0
Date submitted for ethics approval [1] 301302 0
Approval date [1] 301302 0
Ethics approval number [1] 301302 0

Brief summary
The prevalence of 12-month mental disorders highest in young people but service use is low, particularly among young men. Apprenticeships are a common pathway for young people making the transition from adolescent to adulthood, and offer a prime location for intervention. We have worked with young apprentices to adapt an existing app to better suit their needs and are aiming to conduct a pilot trial of this modified app to explore the acceptability, utility, and preliminary efficacy of this modified version. This involves recruiting approximately 60 apprentices who will sign-up and complete assessment online, download the app, use it for 30-days, and complete a second online set of questionnaires.
Trial website
Trial related presentations / publications
Public notes
Primary funding source is a UNSW-USYD memorandum of understanding

Principal investigator
Name 86558 0
Dr Mark Deady
Address 86558 0
Black Dog Institute, UNSW, Hospital Rd Randwick, NSW 2031
Country 86558 0
Phone 86558 0
Fax 86558 0
Email 86558 0
Contact person for public queries
Name 86559 0
Dr Mark Deady
Address 86559 0
Black Dog Institute, UNSW, Hospital Rd Randwick, NSW 2031
Country 86559 0
Phone 86559 0
Fax 86559 0
Email 86559 0
Contact person for scientific queries
Name 86560 0
Dr Mark Deady
Address 86560 0
Black Dog Institute, UNSW, Hospital Rd Randwick, NSW 2031
Country 86560 0
Phone 86560 0
Fax 86560 0
Email 86560 0

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No/undecided IPD sharing reason/comment
not a part of ethics approval
What supporting documents are/will be available?
No other documents available
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