Clinical Trials by Condition: M
- MASS Phenotype (2)
- MECP2 Duplication Syndrome (2)
- MELAS Syndrome (20)
- MERRF Syndrome (3)
- MINOCA (18)
- MYH-associated Polyposis (82)
- MYH9 Related Thrombocytopenia (2)
- Machado-Joseph Disease (36)
- Macroglossia (6)
- Macrophage Activation Syndrome (15)
- Macular Degeneration (2,170)
- Macular Edema (945)
- Maffucci Syndrome (2)
- Magnesium Deficiency (24)
- Mal De Debarquement Syndrome (5)
- Malabsorption Syndromes (559)
- Malaria (1,326)
- Malaria, Cerebral (15)
- Malaria, Falciparum (411)
- Malaria, Vivax (103)
- Male Urogenital Diseases (22,997)
- Malformations of Cortical Development (123)
- Malformations of Cortical Development, Group II (6)
- Malignant Atrophic Papulosis (1)
- Malignant Carcinoid Syndrome (72)
- Malignant Germ Cell Tumor (53)
- Malignant Hyperthermia (11)
- Malignant Mesenchymoma (31)
- Malignant Mesothelioma (529)
- Malignant Migrating Partial Seizures of Infancy (3)
- Malignant Mixed Mullerian Tumor (117)
- Malignant Peripheral Nerve Sheath Tumor (92)
- Malingering (1)
- Malnutrition (3,058)
- Malocclusion (353)
- Malocclusion, Angle Class I (12)
- Malocclusion, Angle Class II (98)
- Malocclusion, Angle Class III (42)
- Malonyl-CoA Decarboxylase Deficiency (3)
- Mammary Neoplasms, Animal (4)
- Mandibular Diseases (423)
- Mandibular Fractures (44)
- Mandibular Injuries (4)
- Mandibular Neoplasms (7)
- Mandibular Nerve Injuries (7)
- Mandibulofacial Dysostosis (12)
- Mania (284)
- Mannosidase Deficiency Diseases (26)
- Mannosidosis, Beta A, Lysosomal (1)
- Mansonelliasis (4)
- Mantle Cell Lymphoma (1,140)
- Maple Syrup Urine Disease (9)
- Marburg Hemorrhagic Fever (9)
- Marburg Virus Disease (9)
- Marcus Gunn Phenomenon (1)
- Marfan Syndrome (63)
- Marginal Zone Lymphoma (794)
- Marijuana Abuse (733)
- Marijuana Use (65)
- Marinesco-Sjogren Syndrome (1)
- Marshall Syndrome (3)
- Masked Hypertension (16)
- Mast Cell Activation Disorders (90)
- Mast Cell Activation Syndrome (8)
- Mast-Cell Sarcoma (2)
- Mastitis (39)
- Mastocytoma (11)
- Mastocytosis (90)
- Mastocytosis, Cutaneous (11)
- Mastocytosis, Systemic (61)
- Mastodynia (70)
- Mastoiditis (5)
- Maternal Death (65)
- Maternal Hyperphenylalaninemia (3)
- Maternally Inherited Diabetes and Deafness (3)
- Maturity-onset Diabetes of the Young (16)
- Maturity-onset Diabetes of the Young, Type 1 (2)
- Maturity-onset Diabetes of the Young, Type 2 (3)
- Maturity-onset Diabetes of the Young, Type 3 (5)
- Maxillary Diseases (10)
- Maxillary Fractures (4)
- Maxillary Neoplasms (7)
- Maxillary Sinus Neoplasms (2)
- Maxillary Sinusitis (16)
- Maxillofacial Abnormalities (215)
- Maxillofacial Dysostosis (1)
- Maxillofacial Injuries (86)
- May-Thurner Syndrome (17)
- McCune-Albright Syndrome (21)
- Measles (180)
- Meckel Diverticulum (1)
- Meckel Syndrome (1)
- Meconium Aspiration Syndrome (20)
- Meconium Ileus (11)
- Medial Tibial Stress Syndrome (10)
- Median Arcuate Ligament Syndrome (1)
- Median Neuropathy (401)
- Mediastinal Diseases (42)
- Mediastinal Emphysema (5)
- Mediastinal Neoplasms (20)
- Mediastinitis (17)
- Medically Unexplained Symptoms (66)
- Medium-chain Acyl-coenzyme A Dehydrogenase Deficiency (7)
- Medullary Sponge Kidney (1)
- Medulloblastoma (308)
- Medulloblastoma, Childhood (133)
- Megacolon (51)
- Megalencephalic Leukoencephalopathy With Subcortical Cysts (1)
- Megalencephaly (7)
- Megalencephaly-capillary Malformation Syndrome (1)
- Meibomian Gland Dysfunction (153)
- Meibomitis (4)
- Meier-Gorlin Syndrome (1)
- Meige Syndrome (3)
- Meigs Syndrome (1)
- Melanoma (3,162)
- Melanoma, Experimental (3)
- Melanosis (171)
- Melena (13)
- Melioidosis (10)
- Melorheostosis (2)
- Membranoproliferative Glomerulonephritis (20)
- Membranous Nephropathy (114)
- Memory Disorders (233)
- Mendelian Susceptibility to Mycobacterial Diseases (1)
- Menetrier Disease (1)
- Meniere Disease (70)
- Meningeal Carcinomatosis (69)
- Meningeal Neoplasms (246)
- Meningioma (240)
- Meningitis (439)
- Meningitis, Aseptic (6)
- Meningitis, Bacterial (159)
- Meningitis, Cryptococcal (49)
- Meningitis, Fungal (50)
- Meningitis, Meningococcal (113)
- Meningitis, Pneumococcal (5)
- Meningitis, Viral (7)
- Meningocele (6)
- Meningococcal Infections (288)
- Meningococcemia (9)
- Meningoencephalitis (20)
- Meningomyelocele (51)
- Menkes Disease (7)
- Menkes Kinky Hair Syndrome (7)
- Menopause (1,496)
- Menopause, Premature (154)
- Menorrhagia (180)
- Menstruation Disturbances (622)
- Mental Disorders (36,650)
- Mental Fatigue (111)
- Mental Retardation, X-Linked (303)
- Meralgia Paresthetica (6)
- Mercury Poisoning (3)
- Merkel Cell Carcinoma (131)
- Mesangial Proliferative Glomerulonephritis (1)
- Mesenchymoma (30)
- Mesenteric Ischemia (35)
- Mesial Movement of Teeth (3)
- Mesothelioma (529)
- Mesothelioma, Malignant (529)
- Metabolic Diseases (28,482)
- Metabolic Side Effects of Drugs and Substances (3)
- Metabolic Syndrome (1,888)
- Metabolism, Inborn Errors (2,645)
- Metachromatic Leukodystrophy (44)
- Metagonimiasis (1)
- Metal Metabolism, Inborn Errors (240)
- Metaplasia (472)
- Metaplastic Carcinoma of the Breast (4)
- Metastatic Squamous Neck Cancer With Occult Primary (138)
- Metatarsalgia (38)
- Metatarsus Varus (3)
- Methemoglobinemia (11)
- Methemoglobinemia, Beta-globin Type (1)
- Methionine Adenosyltransferase Deficiency (1)
- Methylmalonic Acidemia (27)
- Methylmalonic Acidemia With Homocystinuria (1)
- Methylmalonic Acidemia With Homocystinuria Type cblC (1)
- Metrorrhagia (74)
- Mevalonate Kinase Deficiency (4)
- Mevalonic Aciduria (5)
- Micro Syndrome (1)
- Microaneurysm (4)
- Microcephalic Osteodysplastic Primordial Dwarfism Type 1 (1)
- Microcephaly (26)
- Microcystic Adnexal Carcinoma (1)
- Microcystic Lymphatic Malformation (6)
- Microencephaly (26)
- Micrognathism (31)
- Micronuclei, Chromosome-Defective (1)
- Microphthalmia (9)
- Microphthalmos (9)
- Microsatellite Instability (113)
- Microscopic Polyangiitis (60)
- Microsporidiosis (2)
- Microstomia (5)
- Microtia-Anotia (2)
- Microvascular Angina (269)
- Microvascular Rarefaction (6)
- Midline Lethal Granuloma (54)
- Migraine Disorders (1,374)
- Migraine with Aura (101)
- Migraine without Aura (102)
- Mild Phenylketonuria (2)
- Milk Hypersensitivity (124)
- Miller Fisher Syndrome (2)
- Miller Syndrome (5)
- Milroy Disease (13)
- Mineralocorticoid Excess Syndrome, Apparent (3)
- Minimal Change Disease (40)
- Miosis (25)
- Mirizzi Syndrome (1)
- Misophonia (7)
- Mite Infestations (41)
- Mitochondrial Complex I Deficiency (3)
- Mitochondrial Complex II Deficiency (1)
- Mitochondrial DNA Depletion Syndrome (2)
- Mitochondrial DNA-associated Leigh Syndrome (2)
- Mitochondrial Diseases (285)
- Mitochondrial Encephalomyopathies (28)
- Mitochondrial Encephalomyopathy Lactic Acidosis and Stroke-like Episodes (18)
- Mitochondrial Genetic Disorders (1)
- Mitochondrial Membrane Protein-Associated Neurodegeneration (1)
- Mitochondrial Myopathies (68)
- Mitochondrial Neurogastrointestinal Encephalopathy Syndrome (10)
- Mitochondrial Trifunctional Protein Deficiency (13)
- Mitral Atresia (1)
- Mitral Valve Insufficiency (562)
- Mitral Valve Prolapse (38)
- Mitral Valve Stenosis (47)
- Mixed Connective Tissue Disease (17)
- Mixed Dementias (22)
- Mixed Tumor, Malignant (2)
- Mixed Tumor, Mesodermal (10)
- Mixed Tumor, Mullerian (116)
- Miyoshi Myopathy (5)
- Mobility Limitation (222)
- Mobius Syndrome (4)
- Molar Hypomineralization (53)
- Mollaret Meningitis (1)
- Molluscum Contagiosum (23)
- Molybdenum Cofactor Deficiency (6)
- Monckeberg Medial Calcific Sclerosis (2)
- Mondini Dysplasia (1)
- Monkeypox (36)
- Monoclonal Gammopathy of Undetermined Significance (121)
- Monoclonal Mast Cell Activation Syndrome (1)
- Monomelic Amyotrophy (2)
- Mononegavirales Infections (554)
- Mononeuropathies (612)
- Monosomy (30)
- Monteggia's Fracture (1)
- Mood Disorders (6,619)
- Morning Sickness (37)
- Morphea (24)
- Morphine Dependence (3)
- Morquio Syndrome B (3)
- Morton Neuroma (23)
- Morvan's Fibrillary Chorea (2)
- Motion Sickness (40)
- Motor Disorders (61)
- Motor Neuron Disease (993)
- Motor Skills Disorders (62)
- Mounier-Kuhn Syndrome (1)
- Mouth Abnormalities (209)
- Mouth Breathing (25)
- Mouth Diseases (5,248)
- Mouth Neoplasms (579)
- Mouth, Edentulous (376)
- Movement Disorders (5,015)
- Moyamoya Disease (41)
- Mucinoses (341)
- Muckle-Wells Syndrome (19)
- Mucocele (7)
- Mucocutaneous Lymph Node Syndrome (50)
- Mucoepidermoid Carcinoma (80)
- Mucoepidermoid Tumor (80)
- Mucolipidoses (13)
- Mucolipidosis III Alpha/beta (1)
- Mucolipidosis Type 4 (4)
- Mucopolysaccharidoses (218)
- Mucopolysaccharidosis I (69)
- Mucopolysaccharidosis II (76)
- Mucopolysaccharidosis III (46)
- Mucopolysaccharidosis IV (247)
- Mucopolysaccharidosis Type I (69)
- Mucopolysaccharidosis Type II (76)
- Mucopolysaccharidosis Type III (46)
- Mucopolysaccharidosis Type IIIA (29)
- Mucopolysaccharidosis Type IIIB (17)
- Mucopolysaccharidosis Type IIIC (1)
- Mucopolysaccharidosis Type IIID (1)
- Mucopolysaccharidosis Type IV (247)
- Mucopolysaccharidosis Type IVA (31)
- Mucopolysaccharidosis Type VI (35)
- Mucopolysaccharidosis Type VII (17)
- Mucopolysaccharidosis VI (35)
- Mucopolysaccharidosis VII (17)
- Mucormycosis (24)
- Mucositis (493)
- Mucous Membrane Pemphigoid (17)
- Muenke Syndrome (1)
- Muir-Torre Syndrome (5)
- Mullerian Aplasia (5)
- Multicentric Castleman Disease (29)
- Multicentric Reticulohistiocytosis (1)
- Multicore Disease (3)
- Multicystic Dysplastic Kidney (11)
- Multicystic Renal Dysplasia, Bilateral (3)
- Multifocal Choroiditis (6)
- Multifocal Fibrosclerosis (34)
- Multifocal Lymphangioendotheliomatosis With Thrombocytopenia (1)
- Multifocal Motor Neuropathy (17)
- Multiple Acyl Coenzyme A Dehydrogenase Deficiency (6)
- Multiple Carboxylase Deficiency (5)
- Multiple Chemical Sensitivity (9)
- Multiple Chronic Conditions (81)
- Multiple Endocrine Neoplasia (40)
- Multiple Endocrine Neoplasia Type 1 (20)
- Multiple Endocrine Neoplasia Type 2 (14)
- Multiple Endocrine Neoplasia Type 2a (10)
- Multiple Endocrine Neoplasia Type 2b (6)
- Multiple Mitochondrial Dysfunctions Syndrome (1)
- Multiple Myeloma (3,361)
- Multiple Organ Failure (153)
- Multiple Pulmonary Nodules (180)
- Multiple Sclerosis (2,890)
- Multiple Sclerosis, Chronic Progressive (217)
- Multiple Sclerosis, Relapsing-Remitting (596)
- Multiple Sulfatase Deficiency (2)
- Multiple Sulfatase Deficiency Disease (2)
- Multiple Symmetric Lipomatosis (27)
- Multiple System Atrophy (169)
- Multiple Trauma (148)
- Mumps (102)
- Muscle Cramp (393)
- Muscle Eye Brain Disease (4)
- Muscle Hypertonia (589)
- Muscle Hypotonia (88)
- Muscle Neoplasms (6)
- Muscle Rigidity (185)
- Muscle Spasticity (893)
- Muscle Weakness (960)
- Muscular Atrophy (1,236)
- Muscular Atrophy, Spinal (245)
- Muscular Diseases (5,569)
- Muscular Disorders, Atrophic (680)
- Muscular Dystrophies (649)
- Muscular Dystrophies, Limb-Girdle (55)
- Muscular Dystrophy, Duchenne (377)
- Muscular Dystrophy, Emery-Dreifuss (3)
- Muscular Dystrophy, Facioscapulohumeral (56)
- Muscular Dystrophy, Oculopharyngeal (12)
- Musculoskeletal Abnormalities (1,002)
- Musculoskeletal Diseases (23,707)
- Musculoskeletal Pain (686)
- Mushroom Poisoning (1)
- Mutism (21)
- Myalgia (341)
- Myasthenia Gravis (191)
- Myasthenia Gravis, Autoimmune, Experimental (2)
- Myasthenia Gravis, Neonatal (1)
- Myasthenic Syndromes, Congenital (13)
- Mycetoma (3)
- Mycobacterium Abscessus (16)
- Mycobacterium Avium Complex Infections (76)
- Mycobacterium Infections (1,506)
- Mycobacterium Infections, Nontuberculous (146)
- Mycobacterium Xenopi (2)
- Mycobacterium avium-intracellulare Infection (76)
- Mycoplasma Infections (49)
- Mycoplasmal Pneumonia (20)
- Mycoses (7,430)
- Mycosis Fungoides (429)
- Mydriasis (56)
- Myelitis (370)
- Myelitis, Transverse (120)
- Myelodysplastic Syndrome With Excess Blasts (197)
- Myelodysplastic Syndromes (2,339)
- Myelodysplastic-Myeloproliferative Diseases (517)
- Myelodysplastic/myeloproliferative Disease (546)
- Myeloid Leukemia (3,935)
- Myeloid Sarcoma (12)
- Myelomeningocele (51)
- Myeloproliferative Disorders (2,005)
- Myhre Syndrome (1)
- Myocardial Bridging (7)
- Myocardial Infarction (3,143)
- Myocardial Ischemia (9,472)
- Myocardial Reperfusion Injury (53)
- Myocardial Stunning (18)
- Myocarditis (138)
- Myoclonic Epilepsies, Progressive (10)
- Myoclonic Epilepsy, Juvenile (2)
- Myoclonus (35)
- Myoclonus Epilepsy (25)
- Myoclonus-dystonia (5)
- Myoepithelial Carcinoma (3)
- Myoepithelioma (2)
- Myofascial Pain Syndromes (1,489)
- Myofibroma (444)
- Myofibromatosis (1)
- Myoglobinuria (3)
- Myokymia (1)
- Myoma (122)
- Myopathies, Nemaline (5)
- Myopathies, Structural, Congenital (18)
- Myopathy Congenital (14)
- Myopathy, Central Core (1)
- Myopericytoma (1)
- Myopia (1,011)
- Myopia, Degenerative (52)
- Myosarcoma (211)
- Myosin Storage Myopathy (1)
- Myositis (274)
- Myositis Ossificans (19)
- Myositis, Inclusion Body (43)
- Myotonia (18)
- Myotonia Congenita (7)
- Myotonic Disorders (86)
- Myotonic Dystrophy (83)
- Myotonic Dystrophy Type 1 (138)
- Myotonic Dystrophy Type 2 (47)
- Myotoxicity (6)
- Myxoid Liposarcoma (33)
- Myxoma (6)
- Myxopapillary Ependymoma (42)