ASSIST in Pitjantjatjara: Protocol for a randomised crossover validation study among Aboriginal and Torres Strait Islander Australians
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Date
2025
Authors
Stevens, M.W.R.
Bertossa, S.
Barry, D.
Holmwood, C.
Lee, K.S.K.
Marsden, J.
Pedler, M.
Thompson, M.
Wilson, S.
Ali, R.L.
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Contemporary Clinical Trials Communications, 2025; 47:101532-1-101532-8
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Matthew W.R. Stevens, Sue Bertossa, Dominic Barry, Chris Holmwood, KS Kylie Lee, John Marsden, Matt Pedler, Mark Thompson, Scott Wilson, Robert L. Ali
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Abstract
Background: Substance use significantly contributes to disease burden among Australians, with harms exacerbated among Aboriginal and Torres Strait Islander peoples by colonisation-related factors like stigma and trauma. Addressing this gap requires culturally acceptable, valid and reliable screening tools, available in a familiar language to the participant, to identify and provide support for those at-risk. This protocol describes a study aimed at validating a culturally-adapted screening tool — the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) — into Pitjantjatjara, to detect risk of substance-related harm. Methods: Recruitment will occur at a variety of Aboriginal health and welfare settings across remote, rural and urban South Australia. Eligible participants (aged 18–65) will be briefed and, upon consent, randomly complete the ASSIST app on an iPad and a semi-structured, yarning-style diagnostic interview (see endnote 1) with a health professional and Pitjantjatjara interpreter. The interview will assess for a range of clinically-defined substance use disorders (based on DSM-5-TR and ICD-11 criteria). All participants will be asked to complete the app a second time (between 7 and 28 days) to assess reliability, while a subset of participants at highest-risk will also undergo specialist evaluation from an independent clinician, as a second check for validity. Discussion: Valid and reliable assessment tools are essential for detecting risky and harmful substance use. If valid, this app has the potential to contribute to community-led efforts to bridge the health gap by addressing modifiable health risk factors. Trial registration: ANZCTR: ACTRN12625000413426. Open Science Framework pre-registration: https://doi.org/ 10.17605/OSF.IO/GNZAY. Version control number: Protocol version 1.1, June 23, 2025.
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© 2025 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).