IDefine is committed to identifying life-changing treatments & cures and building community for those with Kleefstra Syndrome and intellectual disabilities. IDefine exists to provide a community for families affected by Kleefstra Syndrome IDefine is committed to identifying life-changing treatments & cures for those with Kleefstra Syndrome and other Intellectual Disabilities while simultaneously building community and resources for families. We believe that starting with what we know –Kleefstra Syndrome – will offer invaluable insight into treatment and cures for others with intellectual disabilities stemming from genetic disorders.