Clinical Trials by Condition: H
- HELLP Syndrome (27)
- HIV Enteropathy (4)
- HIV Infections (9,015)
- HIV Seropositivity (562)
- 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 (477)
- Hairy Cell Leukemia (225)
- Halitosis (62)
- Hallucinations (124)
- Hallux Limitus (32)
- Hallux Rigidus (32)
- Hallux Valgus (122)
- Hallux Varus (2)
- Hamartoma (104)
- Hamartoma Syndrome, Multiple (21)
- Hamman-Rich Syndrome (26)
- Hammer Toe Syndrome (12)
- Hand Deformities (11)
- Hand Deformities, Congenital (4)
- Hand Dermatoses (9)
- Hand Injuries (89)
- Hand, Foot and Mouth Disease (46)
- Hand-Arm Vibration Syndrome (1)
- Hand-Foot Syndrome (39)
- Hansen's Disease (38)
- Hantavirus Infections (15)
- Hantavirus Pulmonary Syndrome (15)
- Hashimoto Disease (73)
- Hashimoto Encephalopathy (34)
- Head Injuries, Closed (465)
- Head Injuries, Penetrating (7)
- Head and Neck Neoplasms (6,248)
- Headache (1,867)
- Headache Disorders (1,550)
- Headache Disorders, Primary (1,295)
- Headache Disorders, Secondary (225)
- Healthcare-Associated Pneumonia (362)
- Hearing Disorders (1,249)
- Hearing Loss (1,025)
- Hearing Loss, Bilateral (60)
- Hearing Loss, Central (5)
- Hearing Loss, Conductive (64)
- Hearing Loss, Functional (3)
- Hearing Loss, High-Frequency (5)
- Hearing Loss, Mixed Conductive-Sensorineural (32)
- Hearing Loss, Noise-Induced (35)
- Hearing Loss, Sensorineural (359)
- Hearing Loss, Sudden (31)
- Hearing Loss, Unilateral (47)
- Heart Arrest (1,186)
- Heart Block (210)
- Heart Defects, Congenital (1,678)
- Heart Diseases (23,271)
- Heart Failure (5,381)
- Heart Failure, Diastolic (161)
- Heart Failure, Systolic (200)
- Heart Injuries (13)
- Heart Murmurs (158)
- Heart Neoplasms (10)
- Heart Rupture (5)
- Heart Rupture, Post-Infarction (3)
- Heart Septal Defects (193)
- Heart Septal Defects, Atrial (140)
- Heart Septal Defects, Ventricular (55)
- Heart Tumor (10)
- Heart Valve Diseases (1,906)
- Heartburn (164)
- Heat Exhaustion (2)
- Heat Stress Disorders (450)
- Heat Stroke (12)
- Heavy Metal Poisoning (45)
- Heel Spur (14)
- Helicobacter Infections (156)
- Helminthiasis (307)
- Hemangioblastoma (15)
- Hemangioendothelioma (26)
- Hemangioendothelioma, Epithelioid (7)
- Hemangioma (247)
- Hemangioma Thrombocytopenia Syndrome (9)
- Hemangioma, Capillary (96)
- Hemangioma, Cavernous (23)
- Hemangioma, Cavernous, Central Nervous System (14)
- Hemangiopericytoma (75)
- Hemangiosarcoma (84)
- Hemarthrosis (22)
- Hematemesis (9)
- Hematocele (1)
- Hematologic Diseases (13,428)
- Hematologic Neoplasms (1,769)
- Hematoma (276)
- Hematoma, Epidural, Cranial (16)
- Hematoma, Epidural, Spinal (14)
- Hematoma, Subdural (108)
- 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 (2)
- Hemimegalencephaly (2)
- Hemiplegia (306)
- Hemobilia (1)
- Hemochromatosis (80)
- Hemochromatosis Type 3 (80)
- Hemochromatosis Type 4 (1)
- Hemoglobin C Disease (7)
- Hemoglobin SC Disease (32)
- Hemoglobinopathies (1,215)
- Hemoglobinuria (125)
- Hemoglobinuria, Paroxysmal (118)
- Hemolysis (1,546)
- Hemolytic-Uremic Syndrome (54)
- Hemoperitoneum (3)
- Hemophilia (779)
- Hemophilia A (750)
- Hemophilia B (231)
- Hemophilic Arthropathy (32)
- Hemopneumothorax (4)
- Hemoptysis (27)
- Hemorrhage (5,320)
- Hemorrhagic Disorders (5,260)
- Hemorrhagic Fever with Renal Syndrome (12)
- Hemorrhagic Fever, Crimean (3)
- Hemorrhagic Fever, Ebola (112)
- Hemorrhagic Fevers, Viral (392)
- Hemorrhagic Stroke (160)
- Hemorrhoids (152)
- Hemosiderosis (80)
- Hemospermia (1)
- Hemostatic Disorders (5,461)
- Hemothorax (22)
- Henipavirus Infections (4)
- Henoch-Schonlein Purpura (32)
- Hepadnaviridae Infections (1,506)
- Heparin-induced Thrombocytopenia (45)
- Hepatic Encephalopathy (187)
- Hepatic Insufficiency (672)
- Hepatic Veno-Occlusive Disease (21)
- Hepatitis (4,409)
- Hepatitis A (4,406)
- Hepatitis B (1,651)
- Hepatitis B, Chronic (847)
- Hepatitis C (2,416)
- Hepatitis C, Chronic (1,288)
- Hepatitis D (60)
- Hepatitis D, Chronic (28)
- Hepatitis E (31)
- Hepatitis, Alcoholic (97)
- Hepatitis, Autoimmune (61)
- Hepatitis, Chronic (2,240)
- Hepatitis, Viral, Human (3,974)
- Hepatoblastoma (71)
- Hepatolenticular Degeneration (51)
- Hepatomegaly (13)
- Hepatopulmonary Syndrome (14)
- Hepatorenal Syndrome (49)
- Hereditary Amyloidosis (10)
- Hereditary Angioedema (136)
- Hereditary Angioedema Type III (1)
- Hereditary Angioedema Types I and II (15)
- Hereditary Antithrombin Deficiency (14)
- Hereditary Antithrombin Deficiency Type 2 (1)
- Hereditary Ataxia (9)
- Hereditary Autoinflammatory Diseases (162)
- Hereditary Breast and Ovarian Cancer Syndrome (60)
- Hereditary Central Nervous System Demyelinating Diseases (99)
- Hereditary Cerebral Hemorrhage With Amyloidosis (24)
- Hereditary Complement Deficiency Diseases (131)
- Hereditary Coproporphyria (14)
- Hereditary Diffuse Gastric Cancer (8)
- Hereditary Diffuse Leukoencephalopathy With Spheroids (5)
- Hereditary Elliptocytosis (1)
- Hereditary Fructose Intolerance (12)
- Hereditary Hemorrhagic Telangiectasia (81)
- Hereditary Hyperekplexia (1)
- Hereditary Leiomyomatosis and Renal Cell Cancer (9)
- Hereditary Melanoma (2)
- Hereditary Methemoglobinemia (1)
- Hereditary Motor and Sensory Neuropathy (544)
- Hereditary Multiple Osteochondromas (5)
- Hereditary Neuropathy With Liability to Pressure Palsies (544)
- 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 (544)
- Hereditary Spastic Paraplegia (27)
- Hereditary Spherocytosis (5)
- Heredodegenerative Disorders, Nervous System (1,593)
- Hermanski-Pudlak Syndrome (10)
- Hermansky-Pudlak Syndrome (10)
- Hernia (1,565)
- Hernia, Abdominal (818)
- Hernia, Diaphragmatic (131)
- Hernia, Diaphragmatic, Traumatic (1)
- Hernia, Femoral (11)
- Hernia, Hiatal (58)
- Hernia, Inguinal (459)
- Hernia, Umbilical (53)
- Hernia, Ventral (256)
- Hernias, Diaphragmatic, Congenital (79)
- Heroin Dependence (94)
- Herpangina (4)
- Herpes Genitalis (79)
- Herpes Labialis (54)
- Herpes Simiae (B Virus) (447)
- Herpes Simplex (609)
- Herpes Simplex Encephalitis (4)
- Herpes Zoster (388)
- Herpes Zoster Ophthalmicus (2)
- Herpes Zoster Oticus (2)
- Herpesviridae Infections (1,494)
- Heterotaxy (6)
- Heterotaxy Syndrome (6)
- Hiccup (6)
- Hidradenitis (156)
- Hidradenitis Suppurativa (154)
- Hidradenocarcinoma (1)
- Hip Contracture (1)
- Hip Dislocation (151)
- Hip Dislocation, Congenital (133)
- Hip Fractures (785)
- Hip Injuries (860)
- Hirschsprung Disease (51)
- Hirsutism (35)
- His Bundle Tachycardia (2)
- Histiocytic Disorders, Malignant (5)
- Histiocytic Necrotizing Lymphadenitis (2)
- Histiocytic Sarcoma (5)
- Histiocytoma (89)
- Histiocytoma, Benign Fibrous (50)
- Histiocytoma, Malignant Fibrous (86)
- Histiocytosis (208)
- Histiocytosis, Langerhans-Cell (71)
- Histiocytosis, Non-Langerhans-Cell (140)
- Histiocytosis, Sinus (6)
- Histoplasmosis (28)
- Historical Trauma (8)
- Hoarding Disorder (27)
- Hoarseness (130)
- Hodgkin Disease (1,387)
- Hodgkin Lymphoma (1,387)
- Holocarboxylase Synthetase Deficiency (4)
- Holoprosencephaly (5)
- Homocysteinemia (4)
- Homocystinuria (13)
- Homocystinuria Due to CBS Deficiency (4)
- Homologous Wasting Disease (932)
- Hookworm Infections (52)
- Hordeolum (2)
- Horizontal Gaze Palsy With Progressive Scoliosis (2)
- Horner Syndrome (6)
- Hot Flashes (287)
- 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 (184)
- Huntington Disease (229)
- Hurler Syndrome (62)
- Hurler–Scheie Syndrome (20)
- Hurthle Cell Thyroid Cancer (7)
- Hutchinson's Melanotic Freckle (17)
- Hyaline Fibromatosis Syndrome (1)
- Hyaline Membrane Disease (51)
- Hyalinosis, Systemic (1)
- Hydatidiform Mole (16)
- Hydatidiform Mole, Invasive (2)
- Hydatidosis (21)
- Hydranencephaly (1)
- Hydrarthrosis (11)
- Hydroa Vacciniforme (1)
- Hydrocephalus (177)
- Hydrocephalus, Normal Pressure (62)
- Hydronephrosis (55)
- Hydrophthalmos (24)
- Hydropneumothorax (1)
- Hydrops Fetalis (9)
- Hydrothorax (12)
- Hyper IgE Syndrome (13)
- Hyper-IgD Syndrome (3)
- Hyper-IgM Immunodeficiency Syndrome (18)
- Hyper-IgM Immunodeficiency Syndrome, Type 1 (13)
- Hyperacusis (17)
- Hyperadrenalism (253)
- Hyperaldosteronism (119)
- Hyperalgesia (210)
- Hyperammonemia (25)
- Hyperandrogenism (85)
- Hyperargininemia (9)
- Hyperbilirubinemia (242)
- Hyperbilirubinemia, Neonatal (108)
- Hypercalcemia (60)
- Hypercalciuria (32)
- Hypercapnia (264)
- Hypercholesterolemia (1,224)
- Hyperekplexia (4)
- Hyperemesis Gravidarum (33)
- Hyperemia (76)
- Hypereosinophilic Syndrome (151)
- Hyperesthesia (1)
- Hyperferritinemia (4)
- Hypergammaglobulinemia (114)
- Hyperglycemia (1,403)
- Hyperglycinemia, Nonketotic (2)
- Hyperhidrosis (102)
- Hyperhomocysteinemia (46)
- Hyperinsulinism (2,944)
- Hyperinsulinism-hyperammonemia Syndrome (2)
- Hyperkalemia (102)
- Hyperkalemic Periodic Paralysis (3)
- Hyperkeratosis, Epidermolytic (3)
- Hyperkinesis (1,276)
- Hyperlactatemia (45)
- Hyperlipidemia Type 3 (6)
- Hyperlipidemia, Familial Combined (42)
- Hyperlipidemias (2,022)
- Hyperlipoproteinemia Type 4 (1)
- Hyperlipoproteinemia Type 5 (12)
- Hyperlipoproteinemia Type I (26)
- Hyperlipoproteinemia Type II (207)
- Hyperlipoproteinemia Type III (7)
- Hyperlipoproteinemia Type IV (7)
- Hyperlipoproteinemia Type V (12)
- Hyperlipoproteinemias (1,985)
- Hypermobile Ehlers-Danlos Syndrome (15)
- Hypernatremia (43)
- Hyperopia (119)
- Hyperostosis (31)
- Hyperostosis, Diffuse Idiopathic Skeletal (1)
- Hyperoxaluria (64)
- Hyperoxaluria, Primary (41)
- Hyperoxia (129)
- Hyperparathyroidism (360)
- Hyperparathyroidism, Primary (90)
- Hyperparathyroidism, Secondary (218)
- Hyperphagia (336)
- Hyperphosphatemia (161)
- Hyperpigmentation (201)
- Hyperplasia (1,054)
- Hyperprolactinemia (35)
- Hyperprolinemia (1)
- Hypersensitivity (10,473)
- Hypersensitivity Pneumonitis (30)
- Hypersensitivity Vasculitis (2)
- Hypersensitivity, Delayed (72)
- Hypersensitivity, Immediate (6,467)
- Hypersplenism (10)
- Hypertelorism (13)
- Hypertension (9,673)
- Hypertension, Malignant (8)
- Hypertension, Portal (372)
- Hypertension, Pregnancy-Induced (725)
- Hypertension, Pulmonary (1,379)
- Hypertension, Renal (27)
- Hypertension, Renovascular (15)
- Hypertensive Encephalopathy (9)
- Hypertensive Retinopathy (6)
- Hyperthermia (1,777)
- Hyperthyroidism (247)
- Hypertrichosis (11)
- Hypertriglyceridemia (301)
- Hypertriglyceridemic Waist (6)
- Hypertrophic Olivary Degeneration (1)
- Hypertrophy (915)
- Hypertrophy, Left Ventricular (150)
- Hypertrophy, Right Ventricular (8)
- Hyperuricemia (193)
- Hyperventilation (60)
- Hypervitaminosis A (3)
- Hypesthesia (41)
- Hypoadrenocorticism, Familial (1)
- Hypoalbuminemia (31)
- Hypoaldosteronism (9)
- Hypoalphalipoproteinemias (16)
- Hypobetalipoproteinemia, Familial, Apolipoprotein B (2)
- Hypobetalipoproteinemias (15)
- Hypocalcemia (148)
- Hypocapnia (12)
- Hypochondriasis (14)
- Hypochondroplasia (5)
- Hypocomplementemic Urticarial Vasculitis (7)
- Hypoganglionosis (3)
- Hypoglossal Nerve Diseases (1)
- Hypoglycemia (792)
- Hypogonadism (380)
- Hypohidrosis (4)
- Hypohidrotic Ectodermal Dysplasia (20)
- Hypokalemia (43)
- Hypokalemic Periodic Paralysis (3)
- Hypokinesia (111)
- Hypolipoproteinemias (28)
- Hypomelanotic Disorder (230)
- Hyponatremia (157)
- Hypoparathyroidism (136)
- Hypopharyngeal Cancer (380)
- Hypopharyngeal Neoplasms (32)
- Hypophosphatasia (35)
- Hypophosphatemia (88)
- Hypophosphatemia, Familial (54)
- Hypophosphatemic Rickets (58)
- Hypopigmentation (233)
- Hypopituitarism (182)
- Hypoplastic Left Heart Syndrome (61)
- Hypoplastic Right Heart Syndrome (3)
- Hypoproteinemia (24)
- Hypoprothrombinemias (1)
- Hypospadias (91)
- Hypotension (1,064)
- Hypotension, Orthostatic (141)
- Hypothalamic Diseases (633)
- Hypothalamic Neoplasms (139)
- Hypothalamic Obesity (14)
- Hypothermia (575)
- Hypothyroidism (199)
- Hypotrichosis (419)
- Hypotrichosis Simplex (1)
- Hypoventilation (157)
- Hypovolemia (124)
- Hypoxanthine Guanine Phosphoribosyltransferase Deficiency (5)
- Hypoxia (1,385)
- Hypoxia, Brain (197)
- Hypoxia-Ischemia, Brain (150)
- Hysteria (70)