Overview
Rare cancers account for 20 per cent of cancers diagnosed in Australia, and 30 per cent of cancer-related deaths. People with rare cancers are more likely to die from their disease than people with more common cancers.
The outlook for people with rare cancers is not as good as that for people with more common cancers because:
- Rare cancers are often diagnosed at late, more advanced and harder to treat stages, because there are no effective screening strategies For patients and their health professionals may not recognise the symptoms of rare cancers
- Treatments for many rare cancers have not advanced at the same pace as treatments for more common cancers in recent years. This is because it is much harder to research or perform clinical trials for rarer diseases and there is often less support for researchers or clinicians.
The COSA Rare Cancers Group was established to help support and improve outcomes for patients with rare cancers. We work with community support groups such as Rare Cancers Australia (rarecancers.org.au) and the Cancer Council's Rare and Less Common Cancers Working Group.
We take an Australia-wide and international approach as collaborations are vital to more rapidly develop rare cancer knowledge and provide the most robust evidence-based for rare cancer patients.
Our membership is open to allied health and medical practitioners, and cancer researchers, with an interest in rare cancers. We also work with other tumour stream specialty groups to promote and develop rare cancer trials and research.
Group information
Read the Rare Cancers Group Terms of Reference
Read the AGM Minutes from 7 December 2020
What’s the latest
Group Chair

Group Chair
Clare Scott
Rare Cancers Group Chair & ANZGOG Representative
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COSAoncology 2 hours ago
Thank you @MASC_Trials for continuing your Affiliated organisation membership with COSA. Don’t forget, MASC Trials members can join COSA at a discounted rate. bit.ly/3s5mOC6
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COSAoncology 23 hours ago
Congratulations COSA members and friends who were recognised with #KingsBirthdayHonours including oncology nurse and researcher, Catherine Johnson AM, and radiation oncologists and researchers, Prof Michael Poulsen AM and Prof Gerard Fogarty OAM. These honours are well deserved
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COSAoncology yesterday
Need a reminder of how to renew your COSA membership? These steps show how: bit.ly/3s5mOC6
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COSAoncology 5 days ago
Join COSA, the national multidisciplinary community for health care professionals working in cancer care. Interested? Here’s how to join: bit.ly/3hXsDLm
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COSAoncology 6 days ago
Did you know @UTS_CST members can join COSA at a discounted rate? Thank you for continuing your Affiliated organisation membership with COSA! bit.ly/3s5mOC6
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COSAoncology 6 days ago
Check your inbox for the June Nutrition Group eNews for member updates, journal articles, PD and more. If you're not subscribed, login to your COSA member account bit.ly/4cI0nc3 to update your preferences. COSA members can view the eNews online at bit.ly/4jxMgbq
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COSAoncology 6 days ago
Call nominations for the 2025 COSA Psycho-Oncology Awards recognising outstanding contributions to psycho-oncology from members of COSA and @POCOG1. Nominations close 30 June 2025 and the awards will be presented at COSA-IPOS 2025 in Adelaide in November. bit.ly/4i9Avrg
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COSAoncology 7 days ago
Thank you to @ANZCHOG for continuing to be an Affiliated member organisation with COSA. We look forward to continuing our collaboration to improve cancer care. You can find a list of all COSA organisation members on our website: bit.ly/44ns3Oq
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COSAoncology 7 days ago
We are pleased that @ALLGtrials continue to be an Affiliated member organisation with COSA, and look forward to our ongoing collaboration to improve cancer care and control. ALLG members can join COSA at a discounted rate. Join or renew here: cosa.org.au/membership/mem…
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COSAoncology 8 days ago
Time is running out to submit your abstract for inclusion in COSA-IPOS 2025! Submissions close Friday 6 June – no extensions! The joint meeting provides an international platform for sharing insights, highlighting innovation, influencing best practice. bit.ly/3XiOu6x
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