Welcome to GoPI3Ks

We are a registered charity (1176289) based in the UK for patients and the families & friends of patients with a Segmental overgrowth in the PIK gene, known as PROS: (PIK3CA Related Overgrowth Spectrum).

PROS is an umbrella term used for a number of conditions, please  click on our “learn more” button for more information on Segmental Overgrowth Syndromes.

Receiving a diagnosis of PROS

We know that when you first receive a diagnosis it can leave you with a mixture of emotions & thoughts. Some of these can be positive (for me I was that excited to finally receive my diagnosis that I got my own PIK3CA tattoo) However, it can also leave you with many more questions than answers. 
We have created a PDF slide document which shows you some basic facts about PROS:

What is PROS

 We understand that many PROS patients will also see other doctors who have very little knowledge of PROS.
This website created by Novartis gives a great breakdown of what PROS is. It also has a great downloadable fact sheet in the resources section to help others understand a little more about PROS.


We understand how difficult it can be to explain PROS to a child living with this condition but also siblings, school friends & children in general. Please see our resources section with links from Novartis aimed at children of different ages & different settings, such as home, school & doctors. As well as a great comic book & workbook.

Our lovely friends at WonderFIL smiles have created a leaflet about PROS especially for children to help them hopefully understand a little more about this condition. Please see their website:

PROS leaflet for children

A big thank you to Linda Roksund for allowing us to upload their video & leaflet.

This little section is dedicated to Ralitsa Madsen who through her extensive scientific research in to PIK3CA & PROS has made a huge difference & impact within the PROS community.

We are very fortunate to have someone with so much movtivation & openness to continue the search for answers. Not just for the PROS community but for cancer research too.

Here is a link to Ralitsa’s blog covering various aspects of her PIK3CA research: Ralitsa Madsen’s Blog

Here is a link to her latest presentation at the CLOVES awareness day August 2021: CLOVES awareness day presentation

WHO ARE WE? Meet your GoPI3Ks team.


Financial Assistance

Our team at GoPI3Ks understand that living with a rare overgrowth condition can & does lead to extra financial costs.

Our aim is to offer financial grants to those who have been diagnosed with PROS, this has included, but not limited to:

  • Funding mobility equipment, such as electric wheelchairs.
  • Funding specialised footwear & clothing.
  • Help with medical costs.
  • Funding family weekend expenses (accommodation & travel*)

For more information & an application form please email us at: gopi3ks@yahoo.com

GOPI3Ks and AllStripes Partner for New PROS Research

GoPI3Ks and AllStripes are partnering to create a database that will enable new PIK3CA-related overgrowth spectrum (PROS) research projects!
We’re looking for patients/families willing to contribute their de-identified medical records to make this effort as strong as possible.
AllStripes is a platform that makes it easy for rare disease patients and caregivers to contribute to treatment research from home. Participate by signing up at allstripes.com/pros and the AllStripes team will collect the records on your behalf, at no cost, and extract insights to power research. The more we know about PROS, the more we can do for PROS patients.

Helpful resources:

We understand that being diagnosed with & living with a rare medical condition can bring it’s own set of issues. Whether this be the extra financial burden, the psychological & mental health affect plus the feeling of being the only one out there & where to go if you need specialised footwear or clothing.
Please click on the Resource button for more information:

GoPI3Ks are proud to be part of the organising committee for this event.

The goals for this meeting are:

  • To bring together the experts in the PIK3CA pathway including clinicians, clinical researchers and basic scientists to allow opportunities to present new information, share data, foster collaboration and encourage networking
  • To stimulate new ideas 
  • To encourage new researchers to enter the field, to collaborate with others in the field and to collaborate with our patient organizations.
  • To identify the gaps and unmet needs for our heterogenous patient populations.
  • You can still catch up with all the talks & presentations until November 29th by following this link & using the email address you used to register for the event: ISM For PIK3CA Related Conditions

In October 2021 we took part in the RAREsummit21 event organised by the CRDN – Cambridge Rare Disease Network.

GoPI3Ks worked with Prime Global to create a PATIENT VOICE PUBLICATION poster to highlight just what PROS is; managing the symptoms, the burden of therapy & life lost. Trial participation as well as hopes & aspirations.

To read the poster you can either right click on the image to the right & open in the new window & zoom in. Alternatively if you click this link to open a new window to see the poster: Patient Voice Publication for PROS PIK3CA Related Overgrowth Spectrum

GoPI3Ks has social media pages on both Twitter & Facebook where you can connect with others either living with PROS,
or who have family/friends with the condition.

Below is the newsletter from December 2020

GoPI3Ks Newsletter December 2020

Below is the newsletter from December 2019

GoPI3Ks newsletter December 2019

Below is the newsletter from December 2018

GoPI3Ks newsletter December 2018

Below is the newsletter from December 2017

gopi3ks newsletter 2017

Below is the newsletter from December 2016:

December 2016 newsletter

Below is the newsletter from January 2016:

January 2016 Issue 2 – Copy

Below is the link below for our first newsletter from 2014:

 newsletter December 2014 Issue 1_vp_2