BIG Breast International Group
We will find a cure for breast cancer through global research and collaboration.

You make a big difference


BIG Time for Baby study

This ALL NEW crowdfunding campaign will give young women with ER+ breast cancer an opportunity to take a break from endocrine therapy to try to have a baby. Donate or create your own campaign today.

We need you

We need you

More than anyone else, you know how much research is important and that you are part of the solution.


The Metastatic Breast Cancer GPS programme

Approximately 1 in 3 of all breast cancers will metastasise, meaning the cancer has spread to other parts of the body. Just as a GPS guidance system helps you...

Leaders in the field of breast cancer research


Results of the MINDACT study are available

Results of the MINDACT clinical trial were presented by Dr Piccart at the AACR Annual Meeting 2016 (New Orleans, USA) on 18 April. The aim of MINDACT was to evaluate the added value of a test of 70 genes (Mammaprint®) to the traditional method of assessing the likelihood of breast cancer recurrence for women with node-negative and 1-to-3 node positive breast cancer. The study results will help oncologists decide which of these patients will be able to safely avoid chemotherapy and the side effects that come with it.


Pharmacoeconomics - Can we afford new drugs for breast cancer ?

The new BIG Research in Focus – Issue 4 is now available for download!
This issue highlights some challenges and questions raised by the ever-increasing cost of new breast cancer drugs. It also focuses on the ESMO-Magnitude of Clinical Benefit Scale as a new tool to score anticancer treatments and assess drug value.


Research that has a true impact on practice

Several of BIG's trials are considered to be landmark, introducing particularly innovative designs, contributing to significant breakthroughs, or paving the way towards more personalised treatment of the disease.


BIG means...No borders. No boundaries. Only possibilities.

Discover our 56 breast cancer research groups.

Finding a cure for breast cancer is one of the biggest challenges faced by researchers from around the world.  


Significant progress has been made to improve both the chances of survival and the quality of life of women affected by the disease.  However, breast cancer remains the second most common cancer in the world and is still responsible for too many deaths annually.


By bringing together the top breast cancer experts from around the world to conduct innovative research, BIG has the global reach and expertise required to find a cure. We need to support such critical research to give hope to women affected by this devastating disease, and their families.



Contact us

Breast International Group (BIG)-aisbl Blvd de Waterloo 121 B-1000 Brussels | Belgium VAT BE 0468 176 240