The National Urea Cycle Disorders Foundation is the only organization solely dedicated to saving the lives of children and adults with urea cycle disorders and leads the search for a cure. Internationally recognized, NUCDF serves as a lifeline to families and medical professionals around the world seeking life saving information. NUCDF is the driving force stimulating and supporting research for new treatments, improved outcomes, and a Cure. NUCDF efforts include educating UCD patients, families and medical professionals on diagnosis, treatment and management, and providing guidance, resources, information and support to all those affected by urea cycle disorders. The UCD International Patient Registry (, empowers UCD patients and caregivers to self-report their own unique experiences with UCD and compare them to others with UCD. Participants in the UCD Registry can help improve the understanding of UCDs, improve care, and accelerate research.