Clinical Trials by Condition: H
- HELLP Syndrome (28)
- HIV Enteropathy (4)
- HIV Infections (9,144)
- HIV Seropositivity (565)
- HIV Wasting Syndrome (14)
- HIV-Associated Lipodystrophy Syndrome (27)
- HIVEP2-related Intellectual Disability (1)
- HMG CoA Lyase Deficiency (1)
- HTLV-1 Associated Myelopathy/tropical Spastic Paraparesis (25)
- HTLV-I Infections (33)
- HTLV-II Infections (3)
- Haemophilus Infections (185)
- Haemophilus Influenzae (204)
- Hailey-Hailey Disease (4)
- Hair Diseases (499)
- Hairy Cell Leukemia (226)
- Halitosis (62)
- Hallucinations (126)
- Hallux Limitus (33)
- Hallux Rigidus (33)
- Hallux Valgus (124)
- Hallux Varus (2)
- Hamartoma (105)
- Hamartoma Syndrome, Multiple (21)
- Hamman-Rich Syndrome (26)
- Hammer Toe Syndrome (12)
- Hand Deformities (11)
- Hand Deformities, Congenital (4)
- Hand Dermatoses (9)
- Hand Injuries (92)
- Hand, Foot and Mouth Disease (46)
- Hand-Arm Vibration Syndrome (1)
- Hand-Foot Syndrome (40)
- Hansen's Disease (39)
- Hantavirus Infections (15)
- Hantavirus Pulmonary Syndrome (15)
- Hashimoto Disease (75)
- Hashimoto Encephalopathy (40)
- Head Injuries, Closed (485)
- Head Injuries, Penetrating (7)
- Head and Neck Neoplasms (6,469)
- Headache (1,934)
- Headache Disorders (1,608)
- Headache Disorders, Primary (1,342)
- Headache Disorders, Secondary (235)
- Healthcare-Associated Pneumonia (371)
- Hearing Disorders (1,292)
- Hearing Loss (1,063)
- Hearing Loss, Bilateral (66)
- Hearing Loss, Central (5)
- Hearing Loss, Conductive (64)
- Hearing Loss, Functional (3)
- Hearing Loss, High-Frequency (5)
- Hearing Loss, Mixed Conductive-Sensorineural (33)
- Hearing Loss, Noise-Induced (35)
- Hearing Loss, Sensorineural (373)
- Hearing Loss, Sudden (32)
- Hearing Loss, Unilateral (49)
- Heart Arrest (1,219)
- Heart Block (220)
- Heart Defects, Congenital (1,735)
- Heart Diseases (23,941)
- Heart Failure (5,540)
- Heart Failure, Diastolic (164)
- Heart Failure, Systolic (204)
- Heart Injuries (13)
- Heart Murmurs (162)
- Heart Neoplasms (11)
- Heart Rupture (5)
- Heart Rupture, Post-Infarction (3)
- Heart Septal Defects (199)
- Heart Septal Defects, Atrial (143)
- Heart Septal Defects, Ventricular (56)
- Heart Tumor (11)
- Heart Valve Diseases (2,003)
- Heartburn (166)
- Heat Exhaustion (3)
- Heat Stress Disorders (463)
- Heat Stroke (14)
- Heavy Metal Poisoning (46)
- Heel Spur (14)
- Helicobacter Infections (168)
- Helminthiasis (314)
- Hemangioblastoma (15)
- Hemangioendothelioma (26)
- Hemangioendothelioma, Epithelioid (7)
- Hemangioma (249)
- Hemangioma Thrombocytopenia Syndrome (9)
- Hemangioma, Capillary (98)
- Hemangioma, Cavernous (23)
- Hemangioma, Cavernous, Central Nervous System (14)
- Hemangiopericytoma (75)
- Hemangiosarcoma (87)
- Hemarthrosis (22)
- Hematemesis (9)
- Hematocele (1)
- Hematologic Diseases (13,745)
- Hematologic Neoplasms (1,817)
- Hematoma (284)
- Hematoma, Epidural, Cranial (16)
- Hematoma, Epidural, Spinal (14)
- Hematoma, Subdural (109)
- Hematoma, Subdural, Acute (5)
- Hematoma, Subdural, Chronic (70)
- Hematoma, Subdural, Intracranial (5)
- Hematuria (62)
- Hemianopsia (34)
- Hemicrania Continua (3)
- Hemifacial Microsomia (6)
- Hemifacial Spasm (23)
- Hemihypertrophy (1)
- Hemimegalencephaly (2)
- Hemiplegia (315)
- Hemobilia (1)
- Hemochromatosis (82)
- Hemochromatosis Type 3 (82)
- Hemochromatosis Type 4 (1)
- Hemoglobin C Disease (7)
- Hemoglobin SC Disease (32)
- Hemoglobinopathies (1,246)
- Hemoglobinuria (133)
- Hemoglobinuria, Paroxysmal (126)
- Hemolysis (1,597)
- Hemolytic-Uremic Syndrome (57)
- Hemoperitoneum (3)
- Hemophilia (794)
- Hemophilia A (764)
- Hemophilia B (236)
- Hemophilic Arthropathy (32)
- Hemopneumothorax (4)
- Hemoptysis (28)
- Hemorrhage (5,452)
- Hemorrhagic Disorders (5,369)
- Hemorrhagic Fever with Renal Syndrome (12)
- Hemorrhagic Fever, Crimean (3)
- Hemorrhagic Fever, Ebola (113)
- Hemorrhagic Fevers, Viral (398)
- Hemorrhagic Stroke (168)
- Hemorrhoids (159)
- Hemosiderosis (82)
- Hemospermia (1)
- Hemostatic Disorders (5,576)
- Hemothorax (22)
- Henipavirus Infections (4)
- Henoch-Schonlein Purpura (33)
- Hepadnaviridae Infections (1,545)
- Heparin-induced Thrombocytopenia (47)
- Hepatic Encephalopathy (192)
- Hepatic Insufficiency (690)
- Hepatic Veno-Occlusive Disease (21)
- Hepatitis (4,479)
- Hepatitis A (4,476)
- Hepatitis B (1,692)
- Hepatitis B, Chronic (875)
- Hepatitis C (2,431)
- Hepatitis C, Chronic (1,291)
- Hepatitis D (66)
- Hepatitis D, Chronic (33)
- Hepatitis E (32)
- Hepatitis, Alcoholic (98)
- Hepatitis, Autoimmune (65)
- Hepatitis, Chronic (2,280)
- Hepatitis, Viral, Human (4,031)
- Hepatoblastoma (73)
- Hepatolenticular Degeneration (53)
- Hepatomegaly (13)
- Hepatopulmonary Syndrome (14)
- Hepatorenal Syndrome (49)
- Hereditary Amyloidosis (10)
- Hereditary Angioedema (139)
- Hereditary Angioedema Type III (1)
- Hereditary Angioedema Types I and II (15)
- Hereditary Antithrombin Deficiency (14)
- Hereditary Antithrombin Deficiency Type 2 (1)
- Hereditary Ataxia (10)
- Hereditary Autoinflammatory Diseases (166)
- Hereditary Breast and Ovarian Cancer Syndrome (61)
- Hereditary Central Nervous System Demyelinating Diseases (102)
- Hereditary Cerebral Hemorrhage With Amyloidosis (27)
- Hereditary Complement Deficiency Diseases (134)
- Hereditary Coproporphyria (14)
- Hereditary Diffuse Gastric Cancer (8)
- Hereditary Diffuse Leukoencephalopathy With Spheroids (5)
- Hereditary Elliptocytosis (1)
- Hereditary Fructose Intolerance (12)
- Hereditary Hemorrhagic Telangiectasia (82)
- Hereditary Hyperekplexia (1)
- Hereditary Leiomyomatosis and Renal Cell Cancer (9)
- Hereditary Melanoma (2)
- Hereditary Methemoglobinemia (1)
- Hereditary Motor and Sensory Neuropathy (572)
- Hereditary Multiple Osteochondromas (5)
- Hereditary Neuropathy With Liability to Pressure Palsies (572)
- Hereditary Pancreatitis (9)
- Hereditary Paraganglioma-pheochromocytoma (1)
- Hereditary Renal Cell Carcinoma (2)
- Hereditary Sensory Neuropathy Type 1 (1)
- Hereditary Sensory and Autonomic Neuropathies (15)
- Hereditary Sensory and Motor Neuropathy (572)
- Hereditary Spastic Paraplegia (29)
- Hereditary Spherocytosis (5)
- Heredodegenerative Disorders, Nervous System (1,627)
- Hermanski-Pudlak Syndrome (10)
- Hermansky-Pudlak Syndrome (10)
- Hernia (1,616)
- Hernia, Abdominal (843)
- Hernia, Diaphragmatic (137)
- Hernia, Diaphragmatic, Traumatic (1)
- Hernia, Femoral (11)
- Hernia, Hiatal (63)
- Hernia, Inguinal (474)
- Hernia, Umbilical (54)
- Hernia, Ventral (260)
- Hernias, Diaphragmatic, Congenital (81)
- Heroin Dependence (94)
- Herpangina (4)
- Herpes Genitalis (79)
- Herpes Labialis (55)
- Herpes Simiae (B Virus) (458)
- Herpes Simplex (627)
- Herpes Simplex Encephalitis (4)
- Herpes Zoster (403)
- Herpes Zoster Ophthalmicus (2)
- Herpes Zoster Oticus (2)
- Herpesviridae Infections (1,534)
- Heterotaxy (6)
- Heterotaxy Syndrome (6)
- Hiccup (7)
- Hidradenitis (165)
- Hidradenitis Suppurativa (163)
- Hidradenocarcinoma (1)
- Hip Contracture (1)
- Hip Dislocation (155)
- Hip Dislocation, Congenital (136)
- Hip Fractures (812)
- Hip Injuries (889)
- Hirschsprung Disease (51)
- Hirsutism (37)
- His Bundle Tachycardia (2)
- Histiocytic Disorders, Malignant (5)
- Histiocytic Necrotizing Lymphadenitis (2)
- Histiocytic Sarcoma (5)
- Histiocytoma (90)
- Histiocytoma, Benign Fibrous (50)
- Histiocytoma, Malignant Fibrous (87)
- Histiocytosis (217)
- Histiocytosis, Langerhans-Cell (71)
- Histiocytosis, Non-Langerhans-Cell (147)
- Histiocytosis, Sinus (6)
- Histoplasmosis (29)
- Historical Trauma (8)
- Hoarding Disorder (27)
- Hoarseness (134)
- Hodgkin Disease (1,401)
- Hodgkin Lymphoma (1,401)
- Holocarboxylase Synthetase Deficiency (4)
- Holoprosencephaly (5)
- Homocysteinemia (4)
- Homocystinuria (14)
- Homocystinuria Due to CBS Deficiency (4)
- Homologous Wasting Disease (942)
- Hookworm Infections (52)
- Hordeolum (2)
- Horizontal Gaze Palsy With Progressive Scoliosis (2)
- Horner Syndrome (6)
- Hot Flashes (290)
- Hoyeraal Hreidarsson Syndrome (1)
- Human HOXA1 Syndromes (1)
- Human T-cell Leukemia Virus Type 1 (54)
- Human T-cell Leukemia Virus Type 2 (6)
- Humeral Fractures (190)
- Huntington Disease (236)
- Hurler Syndrome (62)
- Hurler–Scheie Syndrome (20)
- Hurthle Cell Thyroid Cancer (7)
- Hutchinson's Melanotic Freckle (17)
- Hyaline Fibromatosis Syndrome (1)
- Hyaline Membrane Disease (52)
- Hyalinosis, Systemic (1)
- Hydatidiform Mole (16)
- Hydatidiform Mole, Invasive (2)
- Hydatidosis (23)
- Hydranencephaly (1)
- Hydrarthrosis (11)
- Hydroa Vacciniforme (1)
- Hydrocephalus (180)
- Hydrocephalus, Normal Pressure (62)
- Hydronephrosis (55)
- Hydrophthalmos (24)
- Hydropneumothorax (1)
- Hydrops Fetalis (10)
- Hydrothorax (13)
- Hyper IgE Syndrome (13)
- Hyper-IgD Syndrome (3)
- Hyper-IgM Immunodeficiency Syndrome (18)
- Hyper-IgM Immunodeficiency Syndrome, Type 1 (13)
- Hyperacusis (17)
- Hyperadrenalism (264)
- Hyperaldosteronism (126)
- Hyperalgesia (213)
- Hyperammonemia (27)
- Hyperandrogenism (86)
- Hyperargininemia (9)
- Hyperbilirubinemia (244)
- Hyperbilirubinemia, Neonatal (109)
- Hypercalcemia (60)
- Hypercalciuria (32)
- Hypercapnia (269)
- Hypercholesterolemia (1,242)
- Hyperekplexia (4)
- Hyperemesis Gravidarum (36)
- Hyperemia (81)
- Hypereosinophilic Syndrome (157)
- Hyperesthesia (1)
- Hyperferritinemia (5)
- Hypergammaglobulinemia (118)
- Hyperglycemia (1,433)
- Hyperglycinemia, Nonketotic (2)
- Hyperhidrosis (107)
- Hyperhomocysteinemia (48)
- Hyperinsulinism (3,011)
- Hyperinsulinism-hyperammonemia Syndrome (2)
- Hyperkalemia (105)
- Hyperkalemic Periodic Paralysis (3)
- Hyperkeratosis, Epidermolytic (3)
- Hyperkinesis (1,295)
- Hyperlactatemia (46)
- Hyperlipidemia Type 3 (6)
- Hyperlipidemia, Familial Combined (43)
- Hyperlipidemias (2,060)
- Hyperlipoproteinemia Type 4 (1)
- Hyperlipoproteinemia Type 5 (12)
- Hyperlipoproteinemia Type I (26)
- Hyperlipoproteinemia Type II (214)
- Hyperlipoproteinemia Type III (7)
- Hyperlipoproteinemia Type IV (8)
- Hyperlipoproteinemia Type V (12)
- Hyperlipoproteinemias (2,022)
- Hypermobile Ehlers-Danlos Syndrome (17)
- Hypernatremia (45)
- Hyperopia (124)
- Hyperostosis (31)
- Hyperostosis, Diffuse Idiopathic Skeletal (1)
- Hyperoxaluria (65)
- Hyperoxaluria, Primary (42)
- Hyperoxia (136)
- Hyperparathyroidism (365)
- Hyperparathyroidism, Primary (92)
- Hyperparathyroidism, Secondary (221)
- Hyperphagia (349)
- Hyperphosphatemia (163)
- Hyperpigmentation (209)
- Hyperplasia (1,080)
- Hyperprolactinemia (35)
- Hyperprolinemia (1)
- Hypersensitivity (10,705)
- Hypersensitivity Pneumonitis (33)
- Hypersensitivity Vasculitis (2)
- Hypersensitivity, Delayed (73)
- Hypersensitivity, Immediate (6,602)
- Hypersplenism (10)
- Hypertelorism (13)
- Hypertension (9,884)
- Hypertension, Malignant (10)
- Hypertension, Portal (384)
- Hypertension, Pregnancy-Induced (752)
- Hypertension, Pulmonary (1,411)
- Hypertension, Renal (33)
- Hypertension, Renovascular (17)
- Hypertensive Encephalopathy (9)
- Hypertensive Retinopathy (6)
- Hyperthermia (1,817)
- Hyperthyroidism (257)
- Hypertrichosis (12)
- Hypertriglyceridemia (306)
- Hypertriglyceridemic Waist (6)
- Hypertrophic Olivary Degeneration (1)
- Hypertrophy (947)
- Hypertrophy, Left Ventricular (155)
- Hypertrophy, Right Ventricular (8)
- Hyperuricemia (194)
- Hyperventilation (61)
- Hypervitaminosis A (3)
- Hypesthesia (43)
- Hypoadrenocorticism, Familial (1)
- Hypoalbuminemia (32)
- Hypoaldosteronism (9)
- Hypoalphalipoproteinemias (16)
- Hypobetalipoproteinemia, Familial, Apolipoprotein B (2)
- Hypobetalipoproteinemias (15)
- Hypocalcemia (151)
- Hypocapnia (12)
- Hypochondriasis (14)
- Hypochondroplasia (5)
- Hypocomplementemic Urticarial Vasculitis (7)
- Hypoganglionosis (3)
- Hypoglossal Nerve Diseases (1)
- Hypoglycemia (806)
- Hypogonadism (384)
- Hypohidrosis (4)
- Hypohidrotic Ectodermal Dysplasia (20)
- Hypokalemia (45)
- Hypokalemic Periodic Paralysis (3)
- Hypokinesia (113)
- Hypolipoproteinemias (28)
- Hypomelanotic Disorder (237)
- Hyponatremia (158)
- Hypoparathyroidism (140)
- Hypopharyngeal Cancer (385)
- Hypopharyngeal Neoplasms (34)
- Hypophosphatasia (35)
- Hypophosphatemia (89)
- Hypophosphatemia, Familial (55)
- Hypophosphatemic Rickets (59)
- Hypopigmentation (240)
- Hypopituitarism (185)
- Hypoplastic Left Heart Syndrome (62)
- Hypoplastic Right Heart Syndrome (3)
- Hypoproteinemia (25)
- Hypoprothrombinemias (1)
- Hypospadias (96)
- Hypotension (1,114)
- Hypotension, Orthostatic (148)
- Hypothalamic Diseases (643)
- Hypothalamic Neoplasms (141)
- Hypothalamic Obesity (15)
- Hypothermia (586)
- Hypothyroidism (212)
- Hypotrichosis (438)
- Hypotrichosis Simplex (1)
- Hypoventilation (163)
- Hypovolemia (125)
- Hypoxanthine Guanine Phosphoribosyltransferase Deficiency (5)
- Hypoxia (1,431)
- Hypoxia, Brain (206)
- Hypoxia-Ischemia, Brain (157)
- Hysteria (76)