Clinical Trials Involving Rare Diseases: R
- RHYNS Syndrome (2)
- ROHHAD (3)
- Rabies (97)
- Radiation Induced Brachial Plexopathy (1)
- Radiation Induced Cancer (2)
- Rapid-onset Dystonia-parkinsonism (3)
- Rasmussen Encephalitis (6)
- Reactive Arthritis (15)
- Recessive Dystrophic Epidermolysis Bullosa (33)
- Recurrent Hydatidiform Mole (1)
- Recurrent Respiratory Papillomatosis (25)
- Refsum Disease (8)
- Refsum Disease, Infantile Form (4)
- Relapsing Polychondritis (8)
- Renal Agenesis (3)
- Renal Cell Carcinoma (1,858)
- Renal Cell Carcinoma 4 (1)
- Renal Glycosuria (3)
- Renal Hypouricemia (1)
- Renal Medullary Carcinoma (15)
- Renal Nutcracker Syndrome (1)
- Renal Oncocytoma (3)
- Renal Tubular Acidosis (8)
- Respiratory Distress Syndrome, Infant (1,411)
- Restless Legs Syndrome, Susceptibility To, 1 (2)
- Restless Legs Syndrome, Susceptibility To, 6 (3)
- Reticular Dysgenesis (3)
- Reticulohistiocytoma (1)
- Retinal Vasculopathy With Cerebral Leukodystrophy With Systemic Manifestations (1)
- Retinitis Pigmentosa (236)
- Retinitis Pigmentosa 11 (1)
- Retinitis Pigmentosa 15 (12)
- Retinitis Pigmentosa 20 (1)
- Retinoblastoma (124)
- Retinopathy of Prematurity (141)
- Retroperitoneal Fibrosis (14)
- Retroperitoneal Liposarcoma (4)
- Rett Syndrome (67)
- Reversible Cerebral Vasoconstriction Syndrome (8)
- Revesz Syndrome (1)
- Reynolds Syndrome (1)
- Rhabdoid Tumor (114)
- Rhabdomyosarcoma Alveolar (15)
- Rhabdomyosarcoma Embryonal (14)
- Rheumatic Fever (79)
- Rheumatoid Vasculitis (1)
- Rhizomelic Chondrodysplasia Punctata (3)
- Richter Syndrome (62)
- Rickets (205)
- Rigid Spine Syndrome (23)
- Rocky Mountain Spotted Fever (2)
- Rokitansky Sequence (2)
- Rosai-Dorfman Disease (5)
- Rothmund-Thomson Syndrome (2)
- Roussy Levy Syndrome (501)
- Rubella (103)
- Rubinstein-Taybi Syndrome (3)
- Rumination Disorder (72)
- Russell-Silver Syndrome (4)