9 studies were found.

1.		Recruiting	Natural History Study of Smith-Magenis Syndrome Conditions: Chromosome Abnormalities; Smith Magenis Syndrome
2.		Recruiting	Effects of CX516 on Functioning in Fragile X Syndrome and Autism Conditions: Fragile X Syndrome; Autism
3.		Recruiting	Turner Syndrome: Genotype and Phenotype Condition: Turner's Syndrome
4.		Recruiting	The Effects of Hormones in Growth Hormone-Treated Girls with Turner Syndrome Conditions: Dwarfism; Turner's Syndrome
5.		Recruiting	Clinical and Genetic Studies on Holoprosencephaly Condition: Holoprosencephaly
6.		Recruiting	Treatment of Self-Injurious Behavior in Individuals with Prader-Willi Syndrome Conditions: Prader-Willi Syndrome; Self-Injurious Behavior
7.		Recruiting	Vitamin E in Aging Persons With Down Syndrome Conditions: Down Syndrome; Alzheimer Disease
8.		Recruiting	Brain Study of Patients with Frontal Lobe Dementia and Parkinsonian Disorders Conditions: Alzheimer's Disease; Dementia; Down's Syndrome
9.		Recruiting	Immunologic Evaluation in Patients With DiGeorge Syndrome or Velocardiofacial Syndrome Conditions: DiGeorge Syndrome; Shprintzen syndrome; Chromosome Abnormalities; Abnormalities, Multiple; Conotruncal Cardiac Defects