Clinical Trials by Condition: H
- HELLP Syndrome (26)
- HIV Enteropathy (4)
- HIV Infections (8,736)
- HIV Seropositivity (550)
- HIV Wasting Syndrome (14)
- HIV-Associated Lipodystrophy Syndrome (26)
- HIVEP2-related Intellectual Disability (1)
- HTLV-1 Associated Myelopathy/tropical Spastic Paraparesis (11)
- HTLV-I Infections (33)
- HTLV-II Infections (3)
- Haemophilus Infections (182)
- Haemophilus Influenzae (200)
- Hailey-Hailey Disease (4)
- Hair Diseases (426)
- Hairy Cell Leukemia (224)
- Halitosis (55)
- Hallucinations (117)
- Hallux Limitus (26)
- Hallux Rigidus (26)
- Hallux Valgus (111)
- Hallux Varus (1)
- Hamartoma (97)
- Hamartoma Syndrome, Multiple (19)
- Hamman-Rich Syndrome (25)
- Hammer Toe Syndrome (12)
- Hand Deformities (9)
- Hand Deformities, Congenital (3)
- Hand Dermatoses (8)
- Hand Injuries (86)
- Hand, Foot and Mouth Disease (44)
- Hand-Arm Vibration Syndrome (1)
- Hand-Foot Syndrome (38)
- Hansen's Disease (36)
- Hantavirus Infections (14)
- Hantavirus Pulmonary Syndrome (14)
- Hashimoto Disease (66)
- Hashimoto Encephalopathy (29)
- Head Injuries, Closed (421)
- Head Injuries, Penetrating (7)
- Head and Neck Neoplasms (5,914)
- Headache (1,738)
- Headache Disorders (1,435)
- Headache Disorders, Primary (1,214)
- Headache Disorders, Secondary (193)
- Healthcare-Associated Pneumonia (344)
- Hearing Disorders (1,145)
- Hearing Loss (934)
- Hearing Loss, Bilateral (50)
- Hearing Loss, Central (3)
- Hearing Loss, Conductive (61)
- Hearing Loss, Functional (3)
- Hearing Loss, High-Frequency (5)
- Hearing Loss, Mixed Conductive-Sensorineural (30)
- Hearing Loss, Noise-Induced (32)
- Hearing Loss, Sensorineural (319)
- Hearing Loss, Sudden (26)
- Hearing Loss, Unilateral (44)
- Heart Arrest (1,123)
- Heart Block (194)
- Heart Defects, Congenital (1,593)
- Heart Diseases (22,322)
- Heart Failure (5,088)
- Heart Failure, Diastolic (152)
- Heart Failure, Systolic (190)
- Heart Injuries (13)
- Heart Murmurs (154)
- Heart Neoplasms (10)
- Heart Rupture (4)
- Heart Rupture, Post-Infarction (2)
- Heart Septal Defects (185)
- Heart Septal Defects, Atrial (131)
- Heart Septal Defects, Ventricular (54)
- Heart Tumor (10)
- Heart Valve Diseases (2,003)
- Heartburn (211)
- Heat Exhaustion (2)
- Heat Stress Disorders (415)
- Heat Stroke (12)
- Heavy Metal Poisoning (45)
- Heel Spur (11)
- Helicobacter Infections (137)
- Helminthiasis (299)
- Hemangioblastoma (14)
- Hemangioendothelioma (26)
- Hemangioendothelioma, Epithelioid (7)
- Hemangioma (239)
- Hemangioma Thrombocytopenia Syndrome (9)
- Hemangioma, Capillary (94)
- Hemangioma, Cavernous (20)
- Hemangioma, Cavernous, Central Nervous System (14)
- Hemangiopericytoma (62)
- Hemangiosarcoma (80)
- Hemarthrosis (20)
- Hematemesis (9)
- Hematocele (1)
- Hematologic Diseases (12,770)
- Hematologic Neoplasms (1,673)
- Hematoma (248)
- Hematoma, Epidural, Cranial (15)
- Hematoma, Epidural, Spinal (14)
- Hematoma, Subdural (101)
- Hematoma, Subdural, Acute (5)
- Hematoma, Subdural, Chronic (65)
- Hematoma, Subdural, Intracranial (5)
- Hematuria (58)
- Hemianopsia (32)
- Hemicrania Continua (3)
- Hemifacial Microsomia (6)
- Hemifacial Spasm (23)
- Hemihypertrophy (2)
- Hemimegalencephaly (2)
- Hemiplegia (281)
- Hemobilia (1)
- Hemochromatosis (52)
- Hemochromatosis Type 3 (52)
- Hemochromatosis Type 4 (1)
- Hemoglobin C Disease (7)
- Hemoglobin SC Disease (32)
- Hemoglobinopathies (1,149)
- Hemoglobinuria (117)
- Hemoglobinuria, Paroxysmal (110)
- Hemolysis (1,459)
- Hemolytic-Uremic Syndrome (51)
- Hemoperitoneum (3)
- Hemophilia (737)
- Hemophilia A (711)
- Hemophilia B (217)
- Hemophilic Arthropathy (28)
- Hemopneumothorax (4)
- Hemoptysis (23)
- Hemorrhage (5,009)
- Hemorrhagic Disorders (5,003)
- Hemorrhagic Fever with Renal Syndrome (11)
- Hemorrhagic Fever, Crimean (3)
- Hemorrhagic Fever, Ebola (111)
- Hemorrhagic Fevers, Viral (371)
- Hemorrhagic Stroke (145)
- Hemorrhoids (147)
- Hemosiderosis (28)
- Hemospermia (1)
- Hemostatic Disorders (5,189)
- Hemothorax (21)
- Henipavirus Infections (3)
- Henoch-Schonlein Purpura (26)
- Hepadnaviridae Infections (1,443)
- Heparin-induced Thrombocytopenia (43)
- Hepatic Encephalopathy (177)
- Hepatic Insufficiency (636)
- Hepatic Veno-Occlusive Disease (21)
- Hepatitis (4,275)
- Hepatitis A (4,272)
- Hepatitis B (1,582)
- Hepatitis B, Chronic (808)
- Hepatitis C (2,376)
- Hepatitis C, Chronic (1,280)
- Hepatitis D (53)
- Hepatitis D, Chronic (27)
- Hepatitis E (30)
- Hepatitis, Alcoholic (93)
- Hepatitis, Autoimmune (55)
- Hepatitis, Chronic (2,186)
- Hepatitis, Viral, Human (3,869)
- Hepatoblastoma (68)
- Hepatolenticular Degeneration (46)
- Hepatomegaly (13)
- Hepatopulmonary Syndrome (13)
- Hepatorenal Syndrome (46)
- Hereditary Amyloidosis (10)
- Hereditary Angioedema (122)
- Hereditary Angioedema Type III (1)
- Hereditary Angioedema Types I and II (14)
- Hereditary Antithrombin Deficiency (14)
- Hereditary Antithrombin Deficiency Type 2 (1)
- Hereditary Ataxia (9)
- Hereditary Autoinflammatory Diseases (153)
- Hereditary Breast and Ovarian Cancer Syndrome (48)
- Hereditary Central Nervous System Demyelinating Diseases (95)
- Hereditary Cerebral Hemorrhage With Amyloidosis (19)
- Hereditary Complement Deficiency Diseases (117)
- Hereditary Coproporphyria (13)
- Hereditary Diffuse Gastric Cancer (8)
- Hereditary Diffuse Leukoencephalopathy With Spheroids (3)
- Hereditary Elliptocytosis (1)
- Hereditary Fructose Intolerance (9)
- Hereditary Hemorrhagic Telangiectasia (76)
- Hereditary Leiomyomatosis and Renal Cell Cancer (8)
- Hereditary Melanoma (2)
- Hereditary Methemoglobinemia (1)
- Hereditary Motor and Sensory Neuropathy (479)
- Hereditary Multiple Osteochondromas (5)
- Hereditary Neuropathy With Liability to Pressure Palsies (479)
- Hereditary Pancreatitis (9)
- Hereditary Paraganglioma-pheochromocytoma (1)
- Hereditary Renal Cell Carcinoma (1)
- Hereditary Sensory Neuropathy Type 1 (1)
- Hereditary Sensory and Autonomic Neuropathies (15)
- Hereditary Sensory and Motor Neuropathy (479)
- Hereditary Spastic Paraplegia (23)
- Hereditary Spherocytosis (5)
- Heredodegenerative Disorders, Nervous System (1,493)
- Hermanski-Pudlak Syndrome (10)
- Hermansky-Pudlak Syndrome (10)
- Hernia (1,448)
- Hernia, Abdominal (770)
- Hernia, Diaphragmatic (125)
- Hernia, Femoral (11)
- Hernia, Hiatal (57)
- Hernia, Inguinal (430)
- Hernia, Umbilical (52)
- Hernia, Ventral (238)
- Hernias, Diaphragmatic, Congenital (74)
- Heroin Dependence (94)
- Herpangina (4)
- Herpes Genitalis (75)
- Herpes Labialis (54)
- Herpes Simiae (B Virus) (420)
- Herpes Simplex (268)
- Herpes Simplex Encephalitis (4)
- Herpes Zoster (365)
- Herpes Zoster Ophthalmicus (2)
- Herpes Zoster Oticus (1)
- Herpesviridae Infections (1,349)
- Heterotaxy (6)
- Heterotaxy Syndrome (6)
- Hiccup (6)
- Hidradenitis (142)
- Hidradenitis Suppurativa (139)
- Hidradenocarcinoma (1)
- Hip Contracture (1)
- Hip Dislocation (138)
- Hip Dislocation, Congenital (126)
- Hip Fractures (737)
- Hip Injuries (805)
- Hirschsprung Disease (48)
- Hirsutism (35)
- His Bundle Tachycardia (1)
- Histiocytic Disorders, Malignant (5)
- Histiocytic Necrotizing Lymphadenitis (2)
- Histiocytic Sarcoma (5)
- Histiocytoma (87)
- Histiocytoma, Benign Fibrous (50)
- Histiocytoma, Malignant Fibrous (84)
- Histiocytosis (194)
- Histiocytosis, Langerhans-Cell (66)
- Histiocytosis, Non-Langerhans-Cell (127)
- Histiocytosis, Sinus (5)
- Histoplasmosis (27)
- Historical Trauma (5)
- Hoarding Disorder (26)
- Hoarseness (121)
- Hodgkin Disease (1,362)
- Hodgkin Lymphoma (1,362)
- Holoprosencephaly (5)
- Homocysteinemia (4)
- Homocystinuria (11)
- Homocystinuria Due to CBS Deficiency (4)
- Homologous Wasting Disease (896)
- Hookworm Infections (51)
- Hordeolum (2)
- Horizontal Gaze Palsy With Progressive Scoliosis (2)
- Horner Syndrome (6)
- Hot Flashes (276)
- 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 (170)
- Huntington Disease (221)
- Hurler Syndrome (58)
- Hurler–Scheie Syndrome (18)
- Hurthle Cell Thyroid Cancer (6)
- Hutchinson's Melanotic Freckle (17)
- Hyaline Fibromatosis Syndrome (1)
- Hyaline Membrane Disease (50)
- Hyalinosis, Systemic (1)
- Hydatidiform Mole (14)
- Hydatidiform Mole, Invasive (2)
- Hydatidosis (20)
- Hydranencephaly (1)
- Hydrarthrosis (11)
- Hydrocephalus (165)
- Hydrocephalus, Normal Pressure (59)
- Hydronephrosis (54)
- Hydrophthalmos (23)
- Hydropneumothorax (1)
- Hydrops Fetalis (8)
- Hydrothorax (12)
- Hyper IgE Syndrome (12)
- Hyper-IgD Syndrome (3)
- Hyper-IgM Immunodeficiency Syndrome (18)
- Hyper-IgM Immunodeficiency Syndrome, Type 1 (13)
- Hyperacusis (17)
- Hyperadrenalism (228)
- Hyperaldosteronism (103)
- Hyperalgesia (204)
- Hyperammonemia (24)
- Hyperandrogenism (83)
- Hyperargininemia (7)
- Hyperbilirubinemia (224)
- Hyperbilirubinemia, Neonatal (95)
- Hypercalcemia (59)
- Hypercalciuria (31)
- Hypercapnia (252)
- Hypercholesterolemia (1,187)
- Hyperekplexia (2)
- Hyperemesis Gravidarum (31)
- Hyperemia (70)
- Hypereosinophilic Syndrome (142)
- Hyperesthesia (1)
- Hyperferritinemia (3)
- Hypergammaglobulinemia (110)
- Hyperglycemia (1,365)
- Hyperhidrosis (98)
- Hyperhomocysteinemia (44)
- Hyperinsulinism (2,832)
- Hyperinsulinism-hyperammonemia Syndrome (2)
- Hyperkalemia (96)
- Hyperkalemic Periodic Paralysis (2)
- Hyperkeratosis, Epidermolytic (3)
- Hyperkinesis (1,223)
- Hyperlactatemia (41)
- Hyperlipidemia Type 3 (6)
- Hyperlipidemia, Familial Combined (41)
- Hyperlipidemias (1,962)
- Hyperlipoproteinemia Type 4 (1)
- Hyperlipoproteinemia Type 5 (12)
- Hyperlipoproteinemia Type I (25)
- Hyperlipoproteinemia Type II (196)
- Hyperlipoproteinemia Type III (7)
- Hyperlipoproteinemia Type IV (7)
- Hyperlipoproteinemia Type V (12)
- Hyperlipoproteinemias (1,925)
- Hypermobile Ehlers-Danlos Syndrome (9)
- Hypernatremia (42)
- Hyperopia (111)
- Hyperostosis (27)
- Hyperostosis, Diffuse Idiopathic Skeletal (1)
- Hyperoxaluria (60)
- Hyperoxaluria, Primary (40)
- Hyperoxia (118)
- Hyperparathyroidism (347)
- Hyperparathyroidism, Primary (87)
- Hyperparathyroidism, Secondary (210)
- Hyperphagia (321)
- Hyperphosphatemia (157)
- Hyperpigmentation (187)
- Hyperplasia (1,006)
- Hyperprolactinemia (34)
- Hyperprolinemia (1)
- Hypersensitivity (10,028)
- Hypersensitivity Pneumonitis (22)
- Hypersensitivity Vasculitis (2)
- Hypersensitivity, Delayed (70)
- Hypersensitivity, Immediate (6,228)
- Hypersplenism (9)
- Hypertelorism (13)
- Hypertension (9,220)
- Hypertension, Malignant (8)
- Hypertension, Portal (350)
- Hypertension, Pregnancy-Induced (682)
- Hypertension, Pulmonary (1,317)
- Hypertension, Renal (27)
- Hypertension, Renovascular (15)
- Hypertensive Encephalopathy (8)
- Hypertensive Retinopathy (6)
- Hyperthermia (1,673)
- Hyperthyroidism (229)
- Hypertrichosis (11)
- Hypertriglyceridemia (293)
- Hypertriglyceridemic Waist (6)
- Hypertrophy (853)
- Hypertrophy, Left Ventricular (145)
- Hypertrophy, Right Ventricular (8)
- Hyperuricemia (176)
- Hyperventilation (58)
- Hypervitaminosis A (3)
- Hypesthesia (44)
- Hypoadrenocorticism, Familial (1)
- Hypoalbuminemia (31)
- Hypoaldosteronism (8)
- Hypoalphalipoproteinemias (15)
- Hypobetalipoproteinemia, Familial, Apolipoprotein B (1)
- Hypobetalipoproteinemias (14)
- Hypocalcemia (139)
- Hypocapnia (11)
- Hypochondriasis (14)
- Hypochondroplasia (5)
- Hypocomplementemic Urticarial Vasculitis (7)
- Hypoganglionosis (3)
- Hypoglossal Nerve Diseases (1)
- Hypoglycemia (763)
- Hypogonadism (369)
- Hypohidrosis (4)
- Hypohidrotic Ectodermal Dysplasia (19)
- Hypokalemia (42)
- Hypokalemic Periodic Paralysis (3)
- Hypokinesia (106)
- Hypolipoproteinemias (26)
- Hypomelanotic Disorder (211)
- Hyponatremia (153)
- Hypoparathyroidism (125)
- Hypopharyngeal Cancer (373)
- Hypopharyngeal Neoplasms (30)
- Hypophosphatasia (33)
- Hypophosphatemia (85)
- Hypophosphatemia, Familial (53)
- Hypophosphatemic Rickets (57)
- Hypopigmentation (213)
- Hypopituitarism (179)
- Hypoplastic Left Heart Syndrome (60)
- Hypoplastic Right Heart Syndrome (3)
- Hypoproteinemia (24)
- Hypoprothrombinemias (1)
- Hypospadias (86)
- Hypotension (971)
- Hypotension, Orthostatic (132)
- Hypothalamic Diseases (619)
- Hypothalamic Neoplasms (135)
- Hypothalamic Obesity (14)
- Hypothermia (545)
- Hypothyroidism (190)
- Hypotrichosis (371)
- Hypotrichosis Simplex (1)
- Hypoventilation (151)
- Hypovolemia (118)
- Hypoxanthine Guanine Phosphoribosyltransferase Deficiency (4)
- Hypoxia (1,276)
- Hypoxia, Brain (175)
- Hypoxia-Ischemia, Brain (133)
- Hysteria (46)