Genetic and Rare Diseases Information Center (GARD)
Other Names for this Disease
Hyperphenylalaninemia caused by a defect in biopterin metabolism
regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.
Clinical Trials & Research for this Disease
- ClinicalTrials.gov lists trials that are studying or have studied Tetrahydrobiopterin deficiency. Click on the link to go to ClinicalTrials.gov to read descriptions of these studies.