Dr Samantha Colledge-Frisby
Honorary Postdoctoral Research Fellow

Background
Samantha completed her PhD at the National Drug and Alcohol Research Centre, UNSW in Sydney. Her thesis was concerned with physical and mental health harms that disproportionately implicate people who inject drugs and strategies that may prevent these harms from occurring.
She has collaborated with global agencies, such as the United Nations Office on Drugs and Crime, the World Health Organization, and the Global Burden of Disease project, in improving global estimates of injecting drug use and associated harm. She is currently posted at the National Drug Research Institute (NDRI) Melbourne where she will be working to expand on our understanding of injecting-related infections and evaluating harm reduction services.
Qualifications
- PhD, UNSW Sydney
- BPsycSc, UQ, Brisbane
Positions
- 2024: Postdoctoral Research Fellow, National Drug Research Institute (NDRI)
- 2024: Honorary Postdoctoral Research Fellow, Burnet Institute
- 2019-2022: Research Officer and Postdoctoral Research Fellow at NDARC, UNSW Sydney
- 2016-2018: Research Assistant at NDARC, UNSW Sydney
Burnet publications
View 12 moreAnalyses Updated to 2022–23 on Australian Attitudes Towards Supervised Injecting Facilities
Drug and Alcohol Review
Zachary Lloyd et al
The costs and benefits of a prison needle and syringe program in Australia, 2025–30: a modelling study
The Medical Journal of Australia
Farah Houdroge et al
Prevalence of injecting-related bacterial and fungal infection among people who inject drugs: a systematic review and meta-analysis
Open Forum Infectious Diseases
Alice Wheeler et al
Current projects

Methamphetamine and injecting drug use cohort studies: MIXMAX
MIXMAX is the largest active cohort study of people who use drugs in Australia. It combines 2 pre-existing studies: SuperMIX and VMAX.

Methamphetamine use in Melbourne and rural Victoria: the VMAX cohort study
The VMAX cohort study follows 850 people who use methamphetamine recruited from metropolitan Melbourne and 3 regions of rural Victoria.

Injecting drug use in Melbourne: SuperMIX cohort study
The largest and longest-running active cohort study of people who inject drugs in Australia (since 2008).