About COSA

COSA has over 800 members.  These are doctors, nurses, scientists and allied health professionals involved in the clinical care of cancer patients.

COSA is the peak national body representing health professionals from all disciplines whose work involves the care of cancer patients. The overarching mission of COSA is to develop and maintain high-quality clinical care of cancer patients in Australia. Our members are doctors, nurses, scientists and all types of allied health professionals involved with cancer patients. We are allied with, and provide high-level clinical advice to, Cancer Council Australia.

Each year COSA hosts an Annual Scientific Meeting which brings together international and national speakers with COSA members and other interested professionals to share, discuss and learn about cancer research, diagnosis, treatment and care of cancer patients.  This is the main platform for information exchange and learning each year.  COSA funds grants and awards for COSA members, and hosts other cancer specific forums, workshops, professional days and seminars to build the knowledge of COSA members.

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Visit the join now page for the COSA membership application form.  You can also contact COSA to join. 

We welcome health professionals working in the field of cancer to join COSA.  Members can join as individual members in the following categories - Medical, Allied Health, Student, Retiree and Honorary memberships.  View types of membership for more information.

Affiliated and Associated Organisations to COSA are not for profit companies, institutions or organisations that have similar interests to COSA.

Yes, you do. All members of Affiliated and Associated Organisations receive a 10% discount on their COSA memberships. All declarations of membership will be verified by the named Affiliated/Associated Organisation.

View types of membership for more information.

A letter from your school/place of study confirms your student status, allowing you to join COSA free of charge.  Students need to apply for membership by contacting COSA or phone (02) 8256 4100.

Joining COSA offers wide-ranging benefits from creating better services for patients to being able to tap into the best expert discussions in your speciality area.  View member benefits for the full list of membership offers.

Membership is valid from 1 July to 30 June each year.  Members joining before 31 March join for that current year. Members joining after 1 April, join for the next year.

Members can either elect to have their annual renewal fees be automatically deducted from their nominated credit card or they can manually renew them online from the 1 July each year. To opt in automated annual renewal please check the box at the end of the payment section or update your details in MY COSA/Mange your profileYou will need your username and password to access MY COSA.  Renewal notices and reminders are sent out by email from COSA.   


The major meeting of the year is the Annual Scientific Meeting (ASM).  The ASM is a multidisciplinary meeting with participation from all professional groups involved in cancer care, including medical, surgical, radiation, nursing, pharmacy, research, psychology and other disciplines. 

The ASM is run over three-days and is hosted by a different state each year to draw on local expertise. It is the most significant national multidisciplinary cancer meeting in Australia.

Other meetings hosted by COSA include cancer specific forums, workshops, professional days and seminars to build the knowledge of COSA members.  View the Events page for details.

The ASM is organised by a local ASM Program Committee, the COSA team and management company, ASN Events. 

Yes. COSA welcomes participation in the trade displays from interested and relevant organisations. See the ASM website for more details.


Only members can access member’s content of the website. You must login to the website (top right hand corner) to access this content. If you have forgotten your email address and/or your membership number you can use the forgot password function on the members login page. If you attempt to access content that is for members only, the website will redirect you to a page where you can log in if you are a COSA member or join COSA if you are not a member.