Breast Cancer studies with PIK3CA mutation

[Jerome Koopman]

Hi all,

I am interested in Breast Cancer studies with PIK3CA mutation. Could you explain which query settings I shall use in cbioportal to find those studies?

For example:

Is there a way to download the clinical datasets (tissue slides, annotations) directly to my local machine or access them via an API?

Best regards

Jerome Koopman

[Nikolaus Schultz]

Hi,

You can query all breast cancer studies for PIK3CA and see the frequency of PIK3CA mutations in each of them. Try this link, which includes non-redundant breast cancer studies (hg19 only).

Niki.

On Mar 31, 2026, at 11:54, Jerome Koopman <jerome...@hotmail.com> wrote:

Hi all,

I am interested in Breast Cancer studies with PIK3CA mutation. Could you explain which query settings I shall use in cbioportal to find those studies?

For example:

<image.png>

Is there a way to download the clinical datasets (tissue slides, annotations) directly to my local machine or access them via an API?

Best regards

Jerome Koopman

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