Clinical Trials Involving Rare Diseases: S
- SAPHO Syndrome (3)
- SEPN1-related Myopathy (1)
- Sacrococcygeal Teratoma (1)
- Sandhoff Disease (17)
- Sarcoma Botryoides (2)
- Scheie Syndrome (18)
- Scheuermann Disease (4)
- Schistosomiasis (60)
- Schnitzler Syndrome (9)
- Schwannoma (89)
- Schwannomatosis (6)
- Scleredema (1)
- Scleritis (17)
- Sclerosing Mesenteritis (1)
- Scott Syndrome (1)
- Scurvy (8)
- Seckel Syndrome (1)
- Secondary Adrenal Insufficiency (39)
- Semantic Dementia (175)
- Septo-optic Dysplasia Spectrum (2)
- Serpiginous Choroiditis (2)
- Sertoli Cell-only Syndrome (1)
- Sertoli-leydig Cell Tumors (10)
- Severe Acute Respiratory Syndrome (27)
- Severe Combined Immunodeficiency (69)
- Severe Combined Immunodeficiency, Atypical (1)
- Severe Congenital Neutropenia (19)
- Sezary Syndrome (343)
- Shashi-Pena Syndrome (1)
- Sheldon-Hall Syndrome (1)
- Shigellosis (39)
- Short Bowel Syndrome (96)
- Shprintzen-Goldberg Craniosynostosis Syndrome (35)
- Shwachman-Diamond Syndrome (14)
- Sialadenitis (6)
- Sickle Beta Thalassemia (6)
- Sickle Cell Anemia (705)
- Sideroblastic Anemia Pyridoxine-refractory Autosomal Recessive (72)
- Siderosis (16)
- Silicosis (11)
- Single Ventricular Heart (82)
- Sinonasal Undifferentiated Carcinoma (2)
- Sinus Cancer (10)
- Sitosterolemia (13)
- Situs Inversus (52)
- Sixth Nerve Palsy (4)
- Sjogren-Larsson Syndrome (3)
- Small Cell Lung Cancer (865)
- Small Intestinal Adenocarcinoma (43)
- Small Intestine Cancer (121)
- Smallpox (69)
- Smith-Lemli-Opitz Syndrome (14)
- Smith-Magenis Syndrome (12)
- Soft Tissue Sarcoma (1,813)
- Somatostatinoma (35)
- Spasmodic Dysphonia (24)
- Spastic Ataxia Charlevoix-Saguenay Type (1)
- Spastic Diplegia Cerebral Palsy (13)
- Spastic Paraparesis (16)
- Specific Antibody Deficiency (2)
- Spheroid Body Myopathy (1)
- Sphingolipidosis (343)
- Spina Bifida (101)
- Spinal Muscular Atrophy (131)
- Spinal Muscular Atrophy 1 (15)
- Spinal Muscular Atrophy Type 2 (13)
- Spinal Muscular Atrophy Type 3 (16)
- Spinal Muscular Atrophy With Respiratory Distress 1 (2)
- Spinal Shock (1)
- Spinocerebellar Ataxia (145)
- Spinocerebellar Ataxia 1 (13)
- Spinocerebellar Ataxia 10 (3)
- Spinocerebellar Ataxia 11 (1)
- Spinocerebellar Ataxia 12 (1)
- Spinocerebellar Ataxia 13 (1)
- Spinocerebellar Ataxia 14 (1)
- Spinocerebellar Ataxia 15 (1)
- Spinocerebellar Ataxia 17 (1)
- Spinocerebellar Ataxia 18 (1)
- Spinocerebellar Ataxia 2 (13)
- Spinocerebellar Ataxia 20 (1)
- Spinocerebellar Ataxia 21 (1)
- Spinocerebellar Ataxia 23 (1)
- Spinocerebellar Ataxia 25 (1)
- Spinocerebellar Ataxia 26 (1)
- Spinocerebellar Ataxia 27 (1)
- Spinocerebellar Ataxia 28 (1)
- Spinocerebellar Ataxia 29 (1)
- Spinocerebellar Ataxia 3 (22)
- Spinocerebellar Ataxia 30 (1)
- Spinocerebellar Ataxia 31 (1)
- Spinocerebellar Ataxia 34 (1)
- Spinocerebellar Ataxia 35 (1)
- Spinocerebellar Ataxia 36 (1)
- Spinocerebellar Ataxia 37 (1)
- Spinocerebellar Ataxia 4 (1)
- Spinocerebellar Ataxia 5 (1)
- Spinocerebellar Ataxia 7 (5)
- Spinocerebellar Ataxia 8 (2)
- Spinocerebellar Ataxia Autosomal Recessive 3 (1)
- Spinocerebellar Ataxia Autosomal Recessive 7 (1)
- Spinocerebellar Ataxia Autosomal Recessive With Axonal Neuropathy (1)
- Spinocerebellar Ataxia Type 6 (8)
- Splenomegaly (36)
- Split Spinal Cord Malformation (1)
- Spondylarthropathy (592)
- Spontaneous Coronary Artery Dissection (12)
- Sporotrichosis (3)
- Staphylococcal Toxic Shock Syndrome (1)
- Stargardt Disease (30)
- Status Epilepticus (61)
- Stenotrophomonas Maltophilia Infection (1)
- Stevens-Johnson Syndrome/toxic Epidermal Necrolysis (26)
- Stickler Syndrome (3)
- Stiff Person Syndrome (8)
- Stomach Cancer (1,880)
- Streptococcal Group A Invasive Disease (15)
- Strongyloidiasis (10)
- Sturge-Weber Syndrome (14)
- Subcorneal Pustular Dermatosis (2)
- Subcutaneous Panniculitis-like T-cell Lymphoma (9)
- Subependymal Giant Cell Astrocytoma (49)
- Subependymoma (45)
- Succinic Semialdehyde Dehydrogenase Deficiency (5)
- Sudden Arrhythmia Death Syndrome (1)
- Sudden Infant Death Syndrome (21)
- Sudden Sensorineural Hearing Loss (24)
- Sulfite Oxidase Deficiency (1)
- Superficial Spreading Melanoma (3)
- Superior Limbic Keratoconjunctivitis (3)
- Superior Mesenteric Artery Syndrome (1)
- Supraglottic Laryngeal Cancer (2)
- Supranuclear Ocular Palsy (2)
- Supratentorial Primitive Neuroectodermal Tumor (110)
- Supravalvular Aortic Stenosis (15)
- Susac Syndrome (2)
- Sydenham's Chorea (2)
- Synovial Sarcoma (105)
- Synovitis (61)
- Syringomyelia (10)
- Systemic Candidiasis (66)
- Systemic Capillary Leak Syndrome (5)
- Systemic Mastocytosis (35)
- Systemic Onset Juvenile Idiopathic Arthritis (42)
- Systemic Scleroderma (403)