Building a
brighter future.

IDefine is committed to identifying life-changing treatments & cures for those with Kleefstra syndrome (KS), a neurodevelopmental disorder caused by a loss of function in one copy of the gene EHMT1.

To learn more about IDefine’s current efforts, please read this update of our Foundation Highlights!

Our Blog

Community Post
Rare U: Education and Awareness for our Kleefstra Community
For Rare Disease Month and leading up to Rare Disease Day, we wanted to share information about topics that are often discussed within the Kleefstra community...

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Support our cause

Our “ I Love Someone Rare” Campaign products are available for purchase now. All proceeds….

I Love Someone
Rare T-shirt

I Love Someone Rare
Water Bottle

I Love Someone
Rare Mug

We would love to hear from you.

If you have any questions feel free to contact us. We will be sure to get back to you as soon as possible.