A Southern Cross University (SCU) clinical trial evaluating new ways to address climate-related post-traumatic stress disorder (PTSD) is now recruiting participants.
In a media release, SCU say the Federal government has funded them to ‘undertake a world-first trial of a stepped-care model for treating mental health in response to natural disasters’.
‘The NSW Northern Rivers region, the location of the clinical trial, has experienced multiple climate-related disasters over the past several years, including flood, bushfire and landslides’.
‘This phase of recruitment focuses on step one of the stepped-care model, compassion groups (arts and nature-based). Initially, participants will be recruited from the Lismore and Byron areas, with other Northern Rivers areas to follow.
‘Step 2 of the stepped-care model is MDMA-assisted therapy. This much smaller trial will test whether MDMA-assisted therapy is effective for people who still have PTSD after completing Step 1. Step 2 is being planned for 2026 to 2027.
‘Southern Cross University leads the trial and is supported by local health services, Aboriginal organisations, and community groups’.
Dr Janet Schloss, the University’s Principal Investigator of HEART, says the clinical trial is founded on contemporary evidence and understanding of PTSD in a post-disaster context.
‘We designed the HEART trial to find ways to heal the Northern Rivers communities still suffering from recent climate-related disasters,’ she said.
Compassion-based approach to PTSD
The media release says, ‘Many studies have shown that high levels of self-criticism predict poorer recovery from PTSD. There is now considerable research demonstrating that the antidote to self-criticism is self-compassion’.
‘If we can start to treat ourselves as our best friend, rather than a person to criticise or abuse, our mental health can take a big upward turn.
Dr Janet Schloss says, ‘How are compassion skills best learned? Research suggests that when we embed compassion skills in enjoyable activities, they are more easily taken on board. Even more so when other group members have similar problems and shared experiences’.
‘Skilled trainers will run arts-based and nature-based compassion groups. They will combine creativity, mindfulness, group connection, and experiencing compassion.
‘Findings from this trial will help inform the development of larger-scale, sustainable mental health programs for disaster-affected populations, especially in regional areas, across Australia,’ said Dr Schloss.
A community-centric research model
Central to the success of the HEART trial is its relationship with the local community. The project has set up community advisory groups across the Northern Rivers. This will ensure that the research prioritises the voices and needs of those most affected.
The trial will use a dedicated website, videos, and public talks to communicate with the community and stakeholders. This will ensure clarity, transparency, and engagement.
How to take part in the study
You may be able to take part in the HEART clinical trial if you:
- Are an adult, 18 years or older.
- Were directly impacted by a climate-related disaster (e.g. flood, bushfire or
landslide) between 2017 and 2022. - Live in the Northern Rivers of NSW.
- Have or think you may have PTSD.
- Can understand and communicate in English.
- Agree to take part in the study, including group sessions and follow-up activities.
The trial runs for 5 weeks. Participants meet once a week for a 3-hour session. Before and after the program, participants will complete questionnaires on their mental health and wellbeing.
To see if you’re eligible, visit the dedicated project website: heart.scu.edu.au For more information about the project, email [email protected]
About the trial
- HEART stands for HEAling climate-Related Trauma and was agreed in consultation with community groups.
- This project is a four-year initiative led by Southern Cross University.
- Funding is provided through the Medical Research Futures Fund (MRFF) and The
Peregrine Centre. - Learn about clinical trials: what they are and what they are not, visit
heart.scu.edu.au/about - The project is supported by key partners, including local health services,
Aboriginal organisations, pharmaceutical partners, and community groups. - This research has ethics approval: Bellberry 2025-03-472 and AH&MRC 2386/25.



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