Global ITP Awareness Week 2026

Immune Thrombocytopenia (ITP) is a rare autoimmune bleeding disorder. It causes the body’s immune system to destroy platelets and/or limits the production of new platelets. This affects the blood’s ability to clot.
ITP can occur at any age. It affects both children and adults. The specific cause isn’t known. There is no cure. The number of people with ITP at any given time in Australia and New Zealand is approximately 9.5 per 100,000.
2026 will be the 11th year that Global ITP Awareness Week has been held internationally. ITP Awareness Week (21–27 September 2026) is a designated week during which individuals worldwide come together to raise public awareness of the rare autoimmune disease, immune thrombocytopenia, and to spotlight the ITP patient experience.
As part of the #LightUp4ITP campaign, landmarks across Australia and New Zealand will light up Purple to support those living with ITP.
Old Treasury Building will be lit in purple for this event from sunrise to sunset.