Clinical Trials by Condition: C

CADASIL (20)
CANDLE Syndrome (6)
CD4 Deficiency (2)
CDKL5 Deficiency Disorder (57)
CHARGE Syndrome (1)
CHD2 Myoclonic Encephalopathy (1)
CHILD Syndrome (6)
CLIPPERS (2)
CLOVES Syndrome (2)
COVID-19 (6,753)
CREST Syndrome (9)
Cachexia (359)
Cadaver (21)
Calcinosis (310)
Calciphylaxis (15)
Calcium Metabolism Disorders (512)
Calculi (861)
Caliciviridae Infections (12)
Callosities (16)
Campylobacter Infections (12)
Camurati-Engelmann Disease (101)
Canavan Disease (9)
Cancer Pain (324)
Candida Glabrata (2)
Candidemia (71)
Candidiasis (302)
Candidiasis, Chronic Mucocutaneous (5)
Candidiasis, Invasive (97)
Candidiasis, Oral (44)
Candidiasis, Vulvovaginal (78)
Capillary Leak Syndrome (5)
Capsule Opacification (136)
Carbamoyl Phosphate Synthetase 1 Deficiency (8)
Carbamoyl-Phosphate Synthase I Deficiency Disease (8)
Carbohydrate Metabolism, Inborn Errors (532)
Carbon Monoxide Poisoning (33)
Carbuncle (2)
Carcinogenesis (197)
Carcinoid Heart Disease (5)
Carcinoid Syndrome (69)
Carcinoid Tumor (216)
Carcinoma (20,480)
Carcinoma in Situ (716)
Carcinoma, Acinar Cell (47)
Carcinoma, Adenoid Cystic (134)
Carcinoma, Adenosquamous (117)
Carcinoma, Basal Cell (345)
Carcinoma, Basosquamous (1)
Carcinoma, Bronchogenic (5,113)
Carcinoma, Ductal (328)
Carcinoma, Ductal, Breast (198)
Carcinoma, Embryonal (40)
Carcinoma, Endometrioid (98)
Carcinoma, Giant Cell (3)
Carcinoma, Hepatocellular (2,306)
Carcinoma, Intraductal, Noninfiltrating (224)
Carcinoma, Islet Cell (73)
Carcinoma, Large Cell (25)
Carcinoma, Lobular (86)
Carcinoma, Medullary (59)
Carcinoma, Merkel Cell (102)
Carcinoma, Mucoepidermoid (79)
Carcinoma, Neuroendocrine (314)
Carcinoma, Non-Small-Cell Lung (5,715)
Carcinoma, Ovarian Epithelial (2,671)
Carcinoma, Pancreatic Ductal (41)
Carcinoma, Papillary (43)
Carcinoma, Papillary, Follicular (1)
Carcinoma, Renal Cell (1,793)
Carcinoma, Signet Ring Cell (12)
Carcinoma, Skin Appendage (2)
Carcinoma, Small Cell (139)
Carcinoma, Squamous Cell (2,743)
Carcinoma, Transitional Cell (704)
Carcinoma, Verrucous (140)
Carcinosarcoma (96)
Cardiac Complexes, Premature (196)
Cardiac Conduction System Disease (927)
Cardiac Output, High (21)
Cardiac Output, Low (80)
Cardiac Rupture (4)
Cardiac Tamponade (4)
Cardio-Renal Syndrome (69)
Cardiofaciocutaneous Syndrome (2)
Cardiomegaly (306)
Cardiomyopathies (1,131)
Cardiomyopathy Due to Anthracyclines (2)
Cardiomyopathy, Alcoholic (1)
Cardiomyopathy, Dilated (205)
Cardiomyopathy, Hypertrophic (192)
Cardiomyopathy, Hypertrophic, Familial (6)
Cardiomyopathy, Restrictive (10)
Cardiospasm (104)
Cardiotoxicity (204)
Cardiovascular Abnormalities (1,862)
Cardiovascular Infections (78)
Caregiver Burden (162)
Carney Complex (4)
Carnitine Palmitoyltransferase 2 Deficiency (5)
Caroli Disease (3)
Carotid Artery Diseases (421)
Carotid Artery Injuries (4)
Carotid Artery Thrombosis (1)
Carotid Body Tumor (109)
Carotid Stenosis (248)
Carotid-Cavernous Sinus Fistula (1)
Carpal Tunnel Syndrome (296)
Carpenter Syndrome (2)
Cartilage Diseases (139)
Cartilage-hair Hypoplasia (2)
Castleman Disease (33)
Cat-Scratch Disease (2)
Catalepsy (1)
Cataplexy (42)
Cataract (1,301)
Catastrophic Antiphospholipid Syndrome (2)
Catastrophic Illness (1)
Catatonia (12)
Catecholaminergic Polymorphic Ventricular Tachycardia (9)
Catheter-Related Infections (93)
Cauda Equina Syndrome (5)
Caudal Regression Sequence (2)
Causalgia (15)
Cavernous Sinus Thrombosis (1)
Cecal Diseases (303)
Celiac Disease (276)
Cell Transformation, Neoplastic (151)
Cellulite (54)
Cellulitis (202)
Central Centrifugal Cicatricial Alopecia (8)
Central Congenital Hypothyroidism (2)
Central Cord Syndrome (7)
Central Core Disease (1)
Central Diabetes Insipidus (10)
Central Nervous System Bacterial Infections (158)
Central Nervous System Cysts (3)
Central Nervous System Diseases (25,859)
Central Nervous System Fungal Infections (48)
Central Nervous System Germinoma (18)
Central Nervous System Infections (728)
Central Nervous System Neoplasms (2,302)
Central Nervous System Vascular Malformations (49)
Central Nervous System Viral Diseases (179)
Central Neurocytoma (3)
Central Pain Syndrome (5)
Central Serous Chorioretinopathy (68)
Centronuclear Myopathy (14)
Cerebellar Astrocytoma, Childhood (94)
Cerebellar Ataxia (292)
Cerebellar Ataxia Ectodermal Dysplasia (1)
Cerebellar Ataxia and Hypogonadotropic Hypogonadism (1)
Cerebellar Degeneration (6)
Cerebellar Diseases (234)
Cerebellar Hypoplasia (1)
Cerebellar Liponeurocytoma (1)
Cerebellar Neoplasms (5)
Cerebral Amyloid Angiopathy (17)
Cerebral Amyloid Angiopathy, Familial (17)
Cerebral Arterial Diseases (111)
Cerebral Astrocytoma, Childhood (90)
Cerebral Cortical Thinning (1)
Cerebral Hemorrhage (307)
Cerebral Hemorrhage, Traumatic (2)
Cerebral Infarction (744)
Cerebral Palsy (942)
Cerebral Palsy Ataxic (2)
Cerebral Palsy Athetoid (2)
Cerebral Palsy Spastic Hemiplegic (14)
Cerebral Small Vessel Diseases (329)
Cerebral Ventriculitis (4)
Cerebrospinal Fluid Leak (45)
Cerebrotendinous Xanthomatosis (10)
Cerebrovascular Disorders (6,869)
Cerebrovascular Trauma (15)
Cervical Dystonia (99)
Cervical Intraepithelial Neoplasia (342)
Chagas Cardiomyopathy (19)
Chagas Disease (74)
Chalazion (11)
Chanarin-Dorfman Syndrome (6)
Chandler's Syndrome (25)
Channelopathies (15)
Chaotic Atrial Tachycardia (2)
Charcot-Marie-Tooth Disease (432)
Charcot-Marie-Tooth Disease Type 1 (12)
Charcot-Marie-Tooth Disease Type 1A (18)
Charcot-Marie-Tooth Disease Type 1B (3)
Charcot-Marie-Tooth Disease Type 2 (2)
Charcot-Marie-Tooth Disease Type 2A (3)
Charles Bonnet Syndrome (3)
Chediak-Higashi Syndrome (13)
Cheilitis (10)
Chemical and Drug Induced Liver Injury (51)
Chemical and Drug Induced Liver Injury, Chronic (2)
Chemically-Induced Disorders (6,374)
Chemotherapy-Induced Febrile Neutropenia (14)
Chemotherapy-Related Cognitive Impairment (28)
Cherubism (2)
Chest Pain (955)
Cheyne-Stokes Respiration (30)
Chiari Malformation Type 2 (55)
Chickenpox (302)
Chikungunya (60)
Chikungunya Fever (60)
Chilblains (5)
Child Behavior Disorders (29)
Child Development Disorders, Pervasive (1,143)
Child Nutrition Disorders (92)
Childhood Acute Lymphoblastic Leukemia (562)
Childhood Apraxia of Speech (7)
Childhood Brain Stem Glioma (102)
Childhood Disintegrative Disorder (2)
Childhood Hepatocellular Carcinoma (12)
Childhood Hypophosphatasia (1)
Childhood Supratentorial Embryonal Tumor, Not Otherwise Specified (86)
Childhood-Onset Fluency Disorder (2)
Childhood-Onset Schizophrenia (7)
Children's Interstitial Lung Disease (2)
Chlamydia Infections (187)
Chlamydial Pneumonia (3)
Choanal Atresia (1)
Cholangiocarcinoma (642)
Cholangitis (216)
Cholangitis, Sclerosing (104)
Cholecystitis (178)
Cholecystitis, Acute (80)
Cholecystolithiasis (312)
Choledochal Cyst (6)
Choledocholithiasis (74)
Cholelithiasis (312)
Cholera (73)
Cholestasis (358)
Cholestasis, Extrahepatic (17)
Cholestasis, Intrahepatic (182)
Cholesteatoma (17)
Cholesteatoma, Middle Ear (4)
Cholesterol Ester Storage Disease (29)
Cholesteryl Ester Storage Disease (30)
Choline Deficiency (5)
Chondroblastoma (1)
Chondrocalcinosis (37)
Chondrodysplasia Punctata (3)
Chondrodysplasia Punctata Syndrome (3)
Chondrodysplasia Punctata, Rhizomelic (3)
Chondroma (2)
Chondromalacia Patellae (9)
Chondrosarcoma (104)
Chondrosarcoma, Clear Cell (1)
Chondrosarcoma, Mesenchymal (5)
Chordoid Glioma of the Third Ventricle (2)
Chordoma (57)
Chorea (208)
Chorea-acanthocytosis (1)
Chorioamnionitis (33)
Choriocarcinoma (66)
Chorioretinitis (10)
Choristoma (7)
Choroid Diseases (255)
Choroid Hemorrhage (1)
Choroid Neoplasms (5)
Choroid Plexus Carcinoma (11)
Choroid Plexus Neoplasms (84)
Choroid Plexus Papilloma (1)
Choroidal Effusions (5)
Choroidal Neovascularization (266)
Choroideremia (24)
Choroiditis (41)
Chromophil Renal Cell Carcinoma (45)
Chromophobe Renal Cell Carcinoma (11)
Chromosomal Instability (6)
Chromosomal Triplication (74)
Chromosome 15q Duplication (2)
Chromosome 17p Deletion (19)
Chromosome 1p36 Deletion Syndrome (2)
Chromosome 1q21.1 Duplication Syndrome (1)
Chromosome 3q29 Microduplication Syndrome (1)
Chromosome 5q Deletion (12)
Chromosome 7q Duplication (1)
Chromosome 9p Deletion (1)
Chromosome Aberrations (331)
Chromosome Deletion (15)
Chromosome Disorders (667)
Chronic Active Epstein-Barr Virus Infection (3)
Chronic Disease (937)
Chronic Eosinophilic Pneumonia (1)
Chronic Erosive Gastritis (1)
Chronic Exertional Compartment Syndrome (6)
Chronic Graft Versus Host Disease (196)
Chronic Granulomatous Disease (67)
Chronic Inflammatory Demyelinating Polyneuropathy (67)
Chronic Intestinal Pseudoobstruction (5)
Chronic Kidney Disease-Mineral and Bone Disorder (47)
Chronic Lymphocytic Leukemia (1,890)
Chronic Myeloid Leukemia (1,235)
Chronic Myelomonocytic Leukemia (544)
Chronic Myeloproliferative Disorders (1,835)
Chronic Neutrophilic Leukemia (111)
Chronic Pain (2,127)
Chronic Periodontitis (363)
Chronic Progressive External Ophthalmoplegia (6)
Chronic Recurrent Multifocal Osteomyelitis (4)
Chronic Thromboembolic Pulmonary Hypertension (96)
Chronic Traumatic Encephalopathy (19)
Chronic Urticaria (126)
Chronobiology Disorders (150)
Churg-Strauss Syndrome (45)
Chylothorax (9)
Chylothorax, Congenital (1)
Cicatrix (992)
Cicatrix, Hypertrophic (93)
Ciguatera Fish Poisoning (1)
Ciguatera Poisoning (1)
Ciliary Motility Disorders (52)
Ciliopathies (245)
Citrullinemia (11)
Citrullinemia Type I (4)
Classic Galactosemia (10)
Clear Cell Renal Cell Carcinoma (1,265)
Cleft Lip (103)
Cleft Palate (100)
Clinical Deterioration (27)
Cloacal Exstrophy (1)
Clostridium Infections (448)
Clubfoot (100)
Cluster Headache (87)
Coagulation Protein Disorders (786)
Coal Worker's Pneumoconiosis (37)
Coats Disease (8)
Cocaine Antenatal Exposure (2)
Cocaine-Related Disorders (405)
Coccidioidomycosis (78)
Coccidiosis (78)
Coccygodynia (6)
Cochlear Diseases (2)
Cockayne Syndrome (8)
Coffin-Lowry Syndrome (1)
Cogan Syndrome (4)
Cognition Disorders (2,563)
Cognitive Dysfunction (2,783)
Cohen Syndrome (1)
Coinfection (238)
Cold Agglutinin Disease (11)
Cold Urticaria (14)
Colic (171)
Colitis (1,318)
Colitis, Collagenous (8)
Colitis, Ischemic (3)
Colitis, Lymphocytic (6)
Colitis, Microscopic (21)
Colitis, Ulcerative (1,178)
Collagen Diseases (8,073)
Collagenous Sprue (1)
Collecting Duct Carcinoma (11)
Colles' Fracture (27)
Colloid Cysts of Third Ventricle (1)
Coloboma (9)
Coloboma of Optic Nerve (2)
Colonic Diseases (6,458)
Colonic Diseases, Functional (750)
Colonic Neoplasms (910)
Colonic Polyps (315)
Colonic Pseudo-Obstruction (6)
Color Vision Defects (18)
Colorectal Neoplasms (5,513)
Colorectal Neoplasms, Hereditary Nonpolyposis (83)
Coma (207)
Coma, Post-Head Injury (2)
Combat Disorders (43)
Common Bile Duct Diseases (84)
Common Bile Duct Neoplasms (2)
Common Cold (155)
Common Variable Immunodeficiency (47)
Communicable Diseases (39,005)
Communicable Diseases, Emerging (6)
Communication Disorders (739)
Community-Acquired Infections (32)
Compartment Syndromes (94)
Compassion Fatigue (17)
Complement Component 5 Deficiency (1)
Complement Component Deficiency (1)
Complete Androgen Insensitivity Syndrome (2)
Complete Atrioventricular Canal (4)
Complex Regional Pain Syndromes (140)
Composite Lymphoma (3)
Compulsive Behavior (354)
Compulsive Exercise (2)
Compulsive Personality Disorder (466)
Conduct Disorder (251)
Condylomata Acuminata (89)
Cone Dystrophy (28)
Cone-Rod Dystrophies (17)
Cone-rod Dystrophy 2 (15)
Confusion (864)
Congenital Abnormalities (6,620)
Congenital Adrenal Hyperplasia (129)
Congenital Amegakaryocytic Thrombocytopenia (8)
Congenital Amputation (3)
Congenital Aplastic Anemia (94)
Congenital Bone Marrow Failure Syndromes (122)
Congenital Central Hypoventilation Syndrome (9)
Congenital Contractural Arachnodactyly (1)
Congenital Cytomegalovirus (42)
Congenital Diaphragmatic Hernia (69)
Congenital Disorders of Glycosylation (9)
Congenital Dyserythropoietic Anemia (6)
Congenital Dyserythropoietic Anemia Type 1 (2)
Congenital Erythropoietic Porphyria (52)
Congenital Fiber Type Disproportion (1)
Congenital Fibrosis of Extraocular Muscles (1)
Congenital Generalized Lipodystrophy (11)
Congenital Heart Block (6)
Congenital Hemolytic Anemia (5)
Congenital Hepatic Fibrosis (3)
Congenital Herpes Simplex (6)
Congenital Human Immunodeficiency Virus (1)
Congenital Hyperinsulinism (47)
Congenital Hypopituitarism (1)
Congenital Hypothyroidism (13)
Congenital Insensitivity to Pain (1)
Congenital Lymphedema (11)
Congenital Mesoblastic Nephroma (7)
Congenital Microtia (14)
Congenital Mirror Movement Disorder (3)
Congenital Muscular Dystrophy (13)
Congenital Muscular Dystrophy Due to Dystroglycanopathy (3)
Congenital Muscular Dystrophy Type 1A (4)
Congenital Myasthenic Syndromes (11)
Congenital Myotonic Dystrophy (5)
Congenital Pseudoarthrosis (4)
Congenital Rubella (2)
Congenital Sucrase-isomaltase Deficiency (4)
Congenital Thrombotic Thrombocytopenic Purpura (7)
Congenital Torticollis (11)
Congenital Tracheal Stenosis (1)
Congenital Vertical Talus (1)
Congenital Zika Syndrome (2)
Congenitally Corrected Transposition of the Great Arteries (2)
Conjunctival Diseases (1,141)
Conjunctival Neoplasms (5)
Conjunctivitis (1,045)
Conjunctivitis, Allergic (201)
Conjunctivitis, Bacterial (76)
Conjunctivitis, Inclusion (10)
Conjunctivitis, Viral (16)
Connective Tissue Diseases (5,697)
Conotruncal Heart Malformations (3)
Consciousness Disorders (442)
Constipation (826)
Constriction, Pathologic (2,692)
Continuous Spike-wave During Slow Sleep Syndrome (6)
Contracture (157)
Contusions (62)
Convalescence (23)
Conversion Disorder (150)
Coproporphyria, Hereditary (11)
Corneal Diseases (1,362)
Corneal Dystrophies, Hereditary (92)
Corneal Edema (33)
Corneal Endothelial Cell Loss (20)
Corneal Endothelial Dystrophy Type 2 (9)
Corneal Injuries (30)
Corneal Neovascularization (25)
Corneal Opacity (36)
Corneal Perforation (4)
Corneal Ulcer (49)
Corneal Wavefront Aberration (5)
Cornelia De Lange Syndrome (4)
Coronary Aneurysm (17)
Coronary Artery Aneurysm (17)
Coronary Artery Disease (8,367)
Coronary Disease (5,373)
Coronary Occlusion (97)
Coronary Restenosis (112)
Coronary Stenosis (365)
Coronary Thrombosis (19)
Coronary Vasospasm (25)
Coronary Vessel Anomalies (24)
Coronaviridae Infections (5,997)
Coronavirus Infections (6,111)
Corpus Callosum Agenesis (15)
Corticobasal Degeneration (35)
Corynebacterium Infections (241)
Costello Syndrome (3)
Cough (685)
Cowden Syndrome (7)
Coxsackievirus Infections (57)
Cramp-fasciculation Syndrome (1)
Cranial Nerve Diseases (952)
Cranial Nerve Injuries (39)
Craniocerebral Trauma (2,290)
Cranioectodermal Dysplasia (1)
Craniofacial Abnormalities (337)
Craniofacial Dysostosis (23)
Craniofacial Fibrous Dysplasia (1)
Craniofacial Microsomia (9)
Craniofrontonasal Dysplasia (1)
Craniomandibular Disorders (257)
Craniopharyngioma (105)
Craniosynostoses (55)
Creutzfeldt-Jakob Disease (7)
Creutzfeldt-Jakob Syndrome (6)
Cri-du-Chat Syndrome (1)
Crigler Najjar Syndrome, Type 1 (12)
Crigler-Najjar Syndrome (12)
Critical Illness (1,950)
Crohn Disease (1,388)
Cross Infection (503)
Croup (32)
Crouzon Syndrome (42)
Crush Injuries (103)
Crush Syndrome (1)
Crusted Scabies (1)
Cryoglobulinemia (12)
Cryoglobulinemic Vasculitis (8)
Cryopyrin-Associated Periodic Syndromes (29)
Cryptococcosis (62)
Cryptogenic Organizing Pneumonia (3)
Cryptorchidism (27)
Cryptosporidiosis (27)
Crystal Arthropathies (196)
Cubital Tunnel Syndrome (19)
Cumulative Trauma Disorders (334)
Currarino Triad (1)
Cushing Syndrome (91)
Cutaneous Fistula (5)
Cutaneous Lupus Erythematosus (57)
Cutaneous Mastocytosis (9)
Cutaneous Polyarteritis Nodosa (1)
Cutaneous Sclerosis (2)
Cutaneous T-cell Lymphoma (484)
Cutaneous-skeletal Hypophosphatemia Syndrome (1)
Cutis Laxa (88)
Cyanosis (11)
Cyberbullying (9)
Cyclothymic Disorder (6)
Cystadenocarcinoma (235)
Cystadenocarcinoma, Mucinous (56)
Cystadenocarcinoma, Serous (210)
Cystadenoma (9)
Cystadenoma, Mucinous (5)
Cystadenoma, Serous (5)
Cystic Adenomatoid Malformation of Lung (4)
Cystic Adenomatoid Malformation of Lung, Congenital (4)
Cystic Fibrosis (1,313)
Cysticercosis (28)
Cystinosis (29)
Cystinuria (23)
Cystitis (245)
Cystitis, Interstitial (172)
Cystocele (62)
Cysts (1,140)
Cytokine Release Syndrome (104)
Cytomegalic Inclusion Disease (347)
Cytomegalovirus Infections (347)
Cytomegalovirus Retinitis (64)

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