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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
Aboriginal Smoking Cessation: Randomised trial of support strategies in Aboriginal health services. Be our Ally Beat Smoking (BOABS) Study
Scientific title
A randomised controlled trial in Indigenous Australian clients of primary health care services of a twelve month intensive multidimensional smoking cessation intervention with a primary end point of sustained cessation at twelve months from the beginning of the intervention.
Secondary ID [1] 283548 0
Nil known
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Tobacco smoking 3989 0
Condition category
Condition code
Public Health 4188 4188 0 0
Health service research

Study type
Description of intervention(s) / exposure
One year intensive primary healthcare-based, Aboriginal researcher-led multidimensional smoking cessation program – individualised smoking cessation plan; regular personal contact & counselling (12-14 individual sessions); monthly group sessions; and support to assist access to existing smoking cessation, health and other services.
Intervention code [1] 3711 0
Other interventions
Intervention code [2] 3712 0
Comparator / control treatment
Regional best practice clinic based smoking cessation program following Kimberley Smoking Cessation Protocol
Control group

Primary outcome [1] 5077 0
Proportion of participants who are not smoking tobacco as determined by urinary cotinine level
Timepoint [1] 5077 0
12 months after randomisation
Primary outcome [2] 5146 0
Proportion of participants who are not smoking tobacco as determined by self-report
Timepoint [2] 5146 0
6 months after randomisation
12 months after randomisation
Secondary outcome [1] 8530 0
Proportion of participants who report 20% or greater reduction in the number of cigarettes smoked each week
Timepoint [1] 8530 0
6 & 12 months after randomisation
Secondary outcome [2] 8664 0
Proportion of participants reporting excellent or very good health using a self-reported health questionnaire
Timepoint [2] 8664 0
6 & 12 months after randomisation

Key inclusion criteria
Self-reported current smoker
Aboriginal and/or Torres Strait Islander
A regular client of the health service
Considering quitting smoking soon / within the next 30 days (READY stage)
Minimum age
16 Years
Maximum age
No limit
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
Unable to provide informed consent
A health condition that would prevent them from completing the trial
Unlikely to be available for follow up at 12 months

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
People attending the primary care services who meet the eligibility criteria will be provided with information about the trial and if they give informed consent to participate will have the initial questionnaire completed. The Research Asssistant (RA) at the trial site will then contact the holder of the allocation schedule based at the central administration site who will then allocate to intervention or control group based on the randomisation list (see below).
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Computer-generated randomisation table created by computer software (i.e., computerised sequence generation) with block stratification by study site.
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?

Intervention assignment
Other design features
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 postcode(s) [1] 1304 0

Funding & Sponsors
Funding source category [1] 4235 0
Government body
Name [1] 4235 0
National Health and Medical Research Council (NHMRC)
Country [1] 4235 0
Primary sponsor type
University of Western Australia
35 Stirling Highway
Secondary sponsor category [1] 3752 0
Name [1] 3752 0
James Cook Universtiy
Address [1] 3752 0
School of Medicine & Dentistry, Cairns Base Hospital, PO Box 902, Cairns QLD 4870
Country [1] 3752 0
Secondary sponsor category [2] 3809 0
Commercial sector/Industry
Name [2] 3809 0
Kimberley Aboriginal Medical Services Council
Address [2] 3809 0
PO Box 1377
WA 6725
Country [2] 3809 0

Ethics approval
Ethics application status
Ethics committee name [1] 6233 0
Human Research and Ethics Committee, University of WA
Ethics committee address [1] 6233 0
35 Stirling Highway
Ethics committee country [1] 6233 0
Date submitted for ethics approval [1] 6233 0
Approval date [1] 6233 0
Ethics approval number [1] 6233 0
Ethics committee name [2] 6288 0
Western Australian Aboriginal Health Information and Ethics Committee
Ethics committee address [2] 6288 0
189 Royal Street
East Perth
WA 6004
Ethics committee country [2] 6288 0
Date submitted for ethics approval [2] 6288 0
Approval date [2] 6288 0
Ethics approval number [2] 6288 0

Brief summary
Aboriginal people smoke at much higher rates than non-Aboriginal people and smoking is an important contributor to increased disease, hospital admissions and deaths in Aboriginal populations. Quit smoking programs in Australia have not had the same impact on Aboriginal smokers as on non-Aboriginal smokers and Aboriginal people are twice as likely to smoke as non-Aboriginal people. It is important that improved techniques for assisting Aboriginal people to quit be developed and implemented as part of comprehensive strategies to improve Aboriginal health. A range of strategies have been used to encourage Aboriginal people to quit smoking however there have been few good quality studies that show what approaches work best. More evidence of strategies that could work more widely in Aboriginal primary health care settings is needed if good policy is to be developed and implemented. This trial will be based in two major Aboriginal health services in the Kimberley region of Western Australia and run over three years. Participants who agree to participate will be randomly allocated to either a program following current Australian recommended primary care smoking cessation strategies or a more intensive supported quit smoking intervention.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 29138 0
A/Prof Julia Marley
Address 29138 0
The Rural Clinical School of Western Australia, The University of Western Australia, &
Kimberley Aboriginal Medical Services Council Inc
PO Box 1377
Broome WA 6725
Country 29138 0
Phone 29138 0
+61 8 9194 3200
Fax 29138 0
Email 29138 0
Contact person for public queries
Name 12295 0
A/Prof Julia Marley
Address 12295 0
PO Box 1377
WA 6725
Country 12295 0
Phone 12295 0
+61 8 9194 3200
Fax 12295 0
+61 8 91922500
Email 12295 0
Contact person for scientific queries
Name 3223 0
A/Prof Julia Marley
Address 3223 0
PO Box 1377
WA 6725
Country 3223 0
Phone 3223 0
+61 8 9194 3200
Fax 3223 0
+61 8 91922500
Email 3223 0

No information has been provided regarding IPD availability

What supporting documents are/will be available?

Results publications and other study-related documents

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

Documents added automatically
SourceTitleYear of PublicationDOI
Dimensions AIThe protocol for the Be Our Ally Beat Smoking (BOABS) study, a randomised controlled trial of an intensive smoking cessation intervention in a remote Aboriginal Australian health care setting2012
N.B. These documents automatically identified may not have been verified by the study sponsor.