Clinical Trials by Condition: P
- PANDAS (29)
- PASLI Disease (3)
- PGM1-CDG (4)
- PHACE Syndrome (4)
- PIK3CA-related Overgrowth Spectrum (11)
- PMM2-CDG (CDG-Ia) (4)
- POEMS Syndrome (10)
- PTEN Hamartoma Tumor Syndrome (7)
- Pachydermoperiostosis (1)
- Pachyonychia Congenita (11)
- Paget Disease of the Breast (9)
- Paget Disease, Extramammary (7)
- Paget's Disease, Mammary (9)
- Pain (25,699)
- Pain Insensitivity, Congenital (4)
- Pain, Intractable (101)
- Pain, Postoperative (4,388)
- Pain, Procedural (159)
- Pain, Referred (17)
- Palatal Neoplasms (1)
- Palatopharyngeal Incompetence (14)
- Palindromic Rheumatism (1)
- Pallister-Hall Syndrome (1)
- Palmoplantar Keratoderma (4)
- Pancoast Syndrome (4)
- Pancreatic Adenoma (3)
- Pancreatic Cancer (3,328)
- Pancreatic Cyst (100)
- Pancreatic Diseases (4,724)
- Pancreatic Fistula (118)
- Pancreatic Intraductal Neoplasms (13)
- Pancreatic Neoplasms (3,328)
- Pancreatic Neuroendocrine Tumor (159)
- Pancreatic Pseudocyst (23)
- Pancreatitis (642)
- Pancreatitis, Acute Necrotizing (57)
- Pancreatitis, Alcoholic (10)
- Pancreatitis, Chronic (221)
- Pancreatitis, Graft (2)
- Pancytopenia (408)
- Panic Disorder (221)
- Panniculitis (16)
- Panniculitis, Peritoneal (1)
- Pantothenate Kinase-Associated Neurodegeneration (12)
- Panuveitis (216)
- Papillary Glioneuronal Tumors (3)
- Papillary Renal Cell Carcinoma (57)
- Papillary Thyroid Carcinoma (135)
- Papilledema (27)
- Papilloma (408)
- Papilloma, Choroid Plexus (1)
- Papilloma, Intraductal (3)
- Papilloma, Inverted (60)
- Papillomavirus Infections (559)
- Papillon Lefevre Syndrome (1)
- Papillon-Lefevre Disease (1)
- Paraganglioma (118)
- Paraganglioma, Extra-Adrenal (4)
- Paragangliomas 1 (118)
- Parainfluenza Virus Type 3 (13)
- Paralysis (2,309)
- Paralysis, Hyperkalemic Periodic (4)
- Paralysis, Obstetric (2)
- Paramyotonia Congenita (7)
- Paramyxoviridae Infections (344)
- Paranasal Sinus Diseases (498)
- Paranasal Sinus Neoplasms (52)
- Paraneoplastic Polyneuropathy (1)
- Paraneoplastic Syndromes (229)
- Paraneoplastic Syndromes, Nervous System (204)
- Paranoid Disorders (29)
- Paraparesis (38)
- Paraparesis, Spastic (23)
- Paraparesis, Tropical Spastic (25)
- Paraphilic Disorders (13)
- Paraphimosis (2)
- Paraplegia (144)
- Paraproteinemias (3,384)
- Parapsoriasis (8)
- Parasitemia (32)
- Parasitic Diseases (2,069)
- Parasomnias (4,587)
- Parathyroid Carcinoma (17)
- Parathyroid Diseases (495)
- Parathyroid Neoplasms (44)
- Paratuberculosis (3)
- Paratyphoid Fever (9)
- Parental Death (42)
- Paresis (887)
- Paresthesia (40)
- Parkes Weber Syndrome (24)
- Parkinson Disease (3,381)
- Parkinson Disease, Secondary (12)
- Parkinsonian Disorders (3,419)
- Paronychia (5)
- Parotid Diseases (57)
- Parotid Neoplasms (21)
- Parotitis (37)
- Parovarian Cyst (2)
- Paroxysmal Hemicrania (3)
- Paroxysmal Kinesigenic Choreoathetosis (2)
- Paroxysmal Nocturnal Hemoglobinuria (115)
- Paroxysmal Ventricular Fibrillation (160)
- Pars Planitis (59)
- Parsonage Turner Syndrome (10)
- Partial Atrioventricular Canal (1)
- Partial Deletion of Y (2)
- Parvoviridae Infections (12)
- Passive-Aggressive Personality Disorder (1)
- Patellar Dislocation (36)
- Patellofemoral Pain Syndrome (171)
- Patent Ductus Arteriosus (134)
- Pathological Conditions, Anatomical (8,491)
- Pattern Dystrophy (4)
- Pauciarticular Onset Juvenile Idiopathic Arthritis (1)
- Peanut Hypersensitivity (153)
- Pearson Syndrome (6)
- Pectus Carinatum (15)
- Pediatric Acute-onset Neuropsychiatric Syndrome (8)
- Pediatric Crohn's Disease (53)
- Pediatric Multiple Sclerosis (17)
- Pediatric Obesity (953)
- Pediatric Ulcerative Colitis (27)
- Pedophilia (6)
- Pelizaeus-Merzbacher Disease (7)
- Pellucid Marginal Degeneration (9)
- Pelvic Floor Disorders (138)
- Pelvic Girdle Pain (41)
- Pelvic Infection (86)
- Pelvic Inflammatory Disease (86)
- Pelvic Neoplasms (88)
- Pelvic Organ Prolapse (534)
- Pelvic Pain (621)
- Pemphigoid, Benign Mucous Membrane (16)
- Pemphigoid, Bullous (66)
- Pemphigus (59)
- Pemphigus Foliaceus (8)
- Pemphigus Vulgaris (35)
- Pemphigus and Fogo Selvagem (2)
- Pemphigus, Benign Familial (4)
- Penile Cancer (78)
- Penile Diseases (183)
- Penile Induration (30)
- Penile Neoplasms (49)
- Penis Agenesis (3)
- Pentalogy of Cantrell (3)
- Peptic Ulcer (599)
- Peptic Ulcer Hemorrhage (68)
- Peptic Ulcer Perforation (12)
- Perceptual Disorders (504)
- Peri-Implantitis (169)
- Periapical Abscess (12)
- Periapical Diseases (132)
- Periapical Granuloma (4)
- Periapical Periodontitis (138)
- Periarthritis (7)
- Pericardial Effusion (29)
- Pericarditis (40)
- Pericarditis, Constrictive (4)
- Pericarditis, Tuberculous (3)
- Pericoronitis (6)
- Perilymphatic Fistula (1)
- Perinatal Death (83)
- Periodontal Abscess (1)
- Periodontal Atrophy (421)
- Periodontal Attachment Loss (30)
- Periodontal Cyst (2)
- Periodontal Diseases (2,343)
- Periodontal Pocket (72)
- Periodontitis (1,165)
- Peripartum Cardiomyopathy (14)
- Peripheral Arterial Disease (1,579)
- Peripheral Nerve Injuries (72)
- Peripheral Nervous System Diseases (3,685)
- Peripheral Nervous System Neoplasms (320)
- Peripheral T-cell Lymphoma (886)
- Peripheral Vascular Diseases (1,536)
- Periprosthetic Fractures (15)
- Peritoneal Diseases (671)
- Peritoneal Fibrosis (7)
- Peritoneal Neoplasms (364)
- Peritonitis (203)
- Peritonitis, Tuberculous (4)
- Peritonsillar Abscess (15)
- Perivascular Epithelioid Cell Neoplasms (64)
- Periventricular Heterotopia (1)
- Periventricular Leukomalacia (31)
- Periventricular Nodular Heterotopia (1)
- Permanent Neonatal Diabetes Mellitus (2)
- Perniosis (6)
- Peroneal Neuropathies (31)
- Peroxisomal Biogenesis Disorders (68)
- Peroxisomal Disorders (68)
- Peroxisome Biogenesis disorder-Zellweger Syndrome Spectrum (5)
- Persian Gulf Syndrome (38)
- Persistent Fetal Circulation Syndrome (35)
- Persistent Genital Arousal Disorder (1)
- Persistent Hyperplastic Primary Vitreous (1)
- Persistent Truncus Arteriosus (5)
- Persistent Vegetative State (54)
- Personality Disorders (728)
- Peters Anomaly (2)
- Peutz-Jeghers Syndrome (18)
- Pfeiffer Syndrome (20)
- Phagocyte Bactericidal Dysfunction (79)
- Phantom Limb (124)
- Pharyngeal Diseases (1,657)
- Pharyngeal Neoplasms (959)
- Pharyngitis (306)
- Phenylketonuria, Maternal (4)
- Phenylketonurias (139)
- Pheochromocytoma (116)
- Philadelphia Chromosome (277)
- Phimosis (12)
- Phlebitis (88)
- Phobia, Social (301)
- Phobic Disorders (418)
- Phosphoglycerate Kinase Deficiency (2)
- Phosphoglycerate Mutase Deficiency (1)
- Phosphorus Metabolism Disorders (218)
- Phosphoserine Aminotransferase Deficiency (1)
- Photophobia (33)
- Photosensitive Epilepsy (14)
- Photosensitivity Disorders (75)
- Phyllodes Tumor (4)
- Phyllodes Tumor of the Breast (5)
- Pica (2)
- Pick Disease of the Brain (254)
- Picornaviridae Infections (3,176)
- Piebaldism (5)
- Pierre Robin Sequence (9)
- Pierre Robin Syndrome (9)
- Pigment-dispersion Syndrome (7)
- Pigmentation Disorders (472)
- Pigmented Villonodular Synovitis (25)
- Pilocytic Astrocytoma (69)
- Pilomatrixoma (2)
- Pilonidal Sinus (68)
- Pineal Germ Cell Tumor (2)
- Pineal Parenchymal Tumors of Intermediate Differentiation (1)
- Pinealoma (70)
- Pineoblastoma (69)
- Pineocytoma (70)
- Pinguecula (1)
- Pinta (3)
- Piriformis Muscle Syndrome (16)
- Piriformis Syndrome (16)
- Pitt-Hopkins Syndrome (4)
- Pituitary ACTH Hypersecretion (60)
- Pituitary Cancer (4)
- Pituitary Diseases (834)
- Pituitary Neoplasms (201)
- Pituitary Stalk Interruption Syndrome (1)
- Pityriasis (15)
- Pityriasis Lichenoides (2)
- Pityriasis Lichenoides Chronica (1)
- Pityriasis Rosea (4)
- Pityriasis Rubra Pilaris (4)
- Placenta Accreta (88)
- Placenta Diseases (218)
- Placenta Disorder (218)
- Placenta Previa (72)
- Placenta, Retained (15)
- Placental Insufficiency (19)
- Plagiocephaly (18)
- Plagiocephaly, Nonsynostotic (12)
- Plague (20)
- Plaque, Amyloid (40)
- Plaque, Atherosclerotic (156)
- Plasma Cell Granuloma, Pulmonary (1)
- Plasma Cell Leukemia (36)
- Plasmablastic Lymphoma (545)
- Plasmacytoma (387)
- Plasminogen Activator Inhibitor Type 1 Deficiency (1)
- Platelet Storage Pool Deficiency (11)
- Platybasia (1)
- Pleomorphic Xanthoastrocytoma (16)
- Pleural Diseases (483)
- Pleural Effusion (328)
- Pleural Effusion, Malignant (148)
- Pleural Neoplasms (511)
- Pleurisy (41)
- Pleuroparenchymal Fibroelastosis (2)
- Pleuropneumonia (50)
- Pleuropulmonary Blastoma (8)
- Pneumatosis Cystoides Intestinalis (1)
- Pneumocephalus (3)
- Pneumococcal Infections (351)
- Pneumoconiosis (45)
- Pneumocystis Infections (87)
- Pneumocystis Jirovecii Pneumonia (119)
- Pneumocystosis (119)
- Pneumonia (8,816)
- Pneumonia, Aspiration (55)
- Pneumonia, Bacterial (275)
- Pneumonia, Mycoplasma (19)
- Pneumonia, Necrotizing (1)
- Pneumonia, Pneumococcal (184)
- Pneumonia, Pneumocystis (119)
- Pneumonia, Staphylococcal (9)
- Pneumonia, Ventilator-Associated (333)
- Pneumonia, Viral (6,749)
- Pneumoperitoneum (145)
- Pneumothorax (148)
- Poisoning (523)
- Poliomyelitis (285)
- Polyarteritis Nodosa (23)
- Polyarticular Onset Juvenile Idiopathic Arthritis (5)
- Polychondritis, Relapsing (8)
- Polycystic Kidney Diseases (165)
- Polycystic Kidney, Autosomal Dominant (139)
- Polycystic Kidney, Autosomal Recessive (5)
- Polycystic Liver Disease (18)
- Polycystic Ovary Syndrome (748)
- Polycythemia (325)
- Polycythemia Vera (302)
- Polydactyly (6)
- Polydipsia (8)
- Polydipsia, Psychogenic (5)
- Polyembryoma (17)
- Polyendocrinopathies, Autoimmune (8)
- Polyhydramnios (8)
- Polymicrogyria (5)
- Polymorphic Reticulosis (2)
- Polymyalgia Rheumatica (132)
- Polymyositis (118)
- Polyneuropathies (502)
- Polyomavirus Allograft Nephropathy (2)
- Polyomavirus Infections (131)
- Polyps (1,028)
- Polyradiculoneuropathy (139)
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating (82)
- Polyradiculopathy (3)
- Polyuria (35)
- Pontocerebellar Hypoplasia (1)
- Pontocerebellar Hypoplasia Type 6 (2)
- Popliteal Artery Entrapment Syndrome (3)
- Popliteal Cyst (3)
- Porencephaly (3)
- Porokeratosis (2)
- Porokeratosis of Mibelli (2)
- Porphyria Cutanea Tarda (48)
- Porphyria, Acute Intermittent (20)
- Porphyria, Erythropoietic (57)
- Porphyria, Variegate (7)
- Porphyrias (57)
- Porphyrias, Hepatic (49)
- Port-Wine Stain (84)
- Positive-Pressure Respiration, Intrinsic (12)
- Posner-Schlossman Syndrome (2)
- Post Polio Syndrome (25)
- Post-Cardiac Arrest Syndrome (24)
- Post-Concussion Syndrome (127)
- Post-Dural Puncture Headache (83)
- Post-Exercise Hypotension (20)
- Post-Lyme Disease Syndrome (13)
- Post-Traumatic Headache (107)
- Post-transplant Lymphoproliferative Disease (110)
- Post-traumatic Epilepsy (10)
- Postcholecystectomy Syndrome (15)
- Posterior Column Ataxia (1)
- Posterior Leukoencephalopathy Syndrome (8)
- Posterior Tibial Tendon Dysfunction (8)
- Posterior Urethral Valves (9)
- Posterior Uveitis (52)
- Postgastrectomy Syndromes (18)
- Postmortem Changes (1)
- Postoperative Cognitive Complications (240)
- Postoperative Complications (6,754)
- Postoperative Hemorrhage (163)
- Postoperative Nausea and Vomiting (467)
- Postpartum Hemorrhage (369)
- Postpartum Thyroiditis (4)
- Postpericardiotomy Syndrome (3)
- Postphlebitic Syndrome (62)
- Postpoliomyelitis Syndrome (25)
- Postthrombotic Syndrome (62)
- Postural Orthostatic Tachycardia Syndrome (96)
- Potassium Aggravated Myotonia (2)
- Potassium Deficiency (43)
- Potocki-Shaffer Syndrome (1)
- Pouchitis (39)
- Poxviridae Infections (161)
- Prader-Willi Syndrome (115)
- Pre-Eclampsia (682)
- Pre-Excitation Syndromes (8)
- Precancerous Conditions (2,640)
- Precocious Puberty (55)
- Precocious Puberty, Gonadotropin-dependent (1)
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma (12)
- Precursor Cell Lymphoblastic Leukemia-Lymphoma (2,414)
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma (95)
- Prediabetic State (979)
- Pregnancy Complications (5,681)
- Pregnancy Complications, Cardiovascular (3)
- Pregnancy Complications, Hematologic (2)
- Pregnancy Complications, Infectious (61)
- Pregnancy Complications, Neoplastic (81)
- Pregnancy in Diabetics (160)
- Pregnancy, Abdominal (3)
- Pregnancy, Cornual (2)
- Pregnancy, Ectopic (69)
- Pregnancy, Interstitial (2)
- Pregnancy, Ovarian (7)
- Pregnancy, Prolonged (31)
- Pregnancy, Tubal (12)
- Prehypertension (135)
- Preleukemia (2,256)
- Premature Birth (4,768)
- Premature Ejaculation (79)
- Premenstrual Dysphoric Disorder (31)
- Premenstrual Syndrome (109)
- Prenatal Exposure Delayed Effects (3)
- Presbycusis (43)
- Presbyopia (267)
- Pressure Ulcer (346)
- Priapism (9)
- Primary Agammaglobulinemia (23)
- Primary Angiitis of the Central Nervous System (1)
- Primary Biliary Cholangitis (142)
- Primary Carnitine Deficiency (9)
- Primary Central Nervous System Lymphoma (256)
- Primary Ciliary Dyskinesia (55)
- Primary Cutaneous Amyloidosis (3)
- Primary Cutaneous Follicle Center Lymphoma (3)
- Primary Dysautonomias (740)
- Primary Effusion Lymphoma (36)
- Primary Familial Brain Calcification (1)
- Primary Graft Dysfunction (23)
- Primary Hyperoxaluria Type 1 (41)
- Primary Hyperoxaluria Type 2 (8)
- Primary Hyperoxaluria Type 3 (12)
- Primary Hyperparathyroidism (90)
- Primary Immunodeficiency Diseases (465)
- Primary Intestinal Lymphangiectasia (1)
- Primary Lateral Sclerosis (731)
- Primary Liver Cancer (256)
- Primary Myelofibrosis (533)
- Primary Orthostatic Hypotension (37)
- Primary Orthostatic Tremor (3)
- Primary Ovarian Insufficiency (146)
- Primary Pigmented Nodular Adrenocortical Disease (2)
- Primary Progressive Aphasia (254)
- Primary Progressive Nonfluent Aphasia (17)
- Primary Sclerosing Cholangitis (117)
- Primary Spontaneous Pneumothorax (36)
- Prinzmetal's Variant Angina (21)
- Prion Diseases (10)
- Problem Behavior (656)
- Proctitis (37)
- Proctocolitis (15)
- Prodromal Symptoms (15)
- Progeria (9)
- Prognathism (39)
- Progressive Bulbar Palsy (1)
- Progressive Familial Intrahepatic Cholestasis 1 (20)
- Progressive Hemifacial Atrophy (5)
- Progressive Multifocal Leukoencephalopathy (24)
- Progressive Myoclonic Epilepsy (5)
- Progressive Non-fluent Aphasia (17)
- Progressive Supranuclear Palsy (125)
- Progressive Supranuclear Palsy Atypical (4)
- Prolactinoma (25)
- Prolapse (737)
- Prolidase Deficiency (1)
- Proliferative Verrucous Leukoplakia (4)
- Proopiomelanocortin Deficiency (4)
- Propionic Acidemia (20)
- Propofol Infusion Syndrome (3)
- Prosopagnosia (2)
- Prostatic Diseases (5,683)
- Prostatic Hyperplasia (608)
- Prostatic Intraepithelial Neoplasia (12)
- Prostatic Neoplasms (5,708)
- Prostatic Neoplasms, Castration-Resistant (56)
- Prostatism (5)
- Prostatitis (78)
- Prosthesis Failure (79)
- Prosthesis-Related Infections (30)
- Prosthetic Joint Infection (96)
- Protein C Deficiency (5)
- Protein Deficiency (57)
- Protein-Energy Malnutrition (52)
- Protein-Losing Enteropathies (12)
- Proteinuria (512)
- Proteostasis Deficiencies (1,366)
- Proteus Infections (16)
- Proteus Syndrome (7)
- Prothrombin Deficiency (1)
- Protoporphyria (21)
- Protoporphyria, Erythropoietic (21)
- Protozoan Infections (1,629)
- Prurigo (32)
- Prurigo Nodularis (28)
- Pruritus (519)
- Pruritus Ani (2)
- Pruritus Vulvae (2)
- Pseudarthrosis (41)
- Pseudoachondroplasia (1)
- Pseudocholinesterase Deficiency (5)
- Pseudohypoaldosteronism (7)
- Pseudohypoaldosteronism Type 2 (4)
- Pseudohypoparathyroidism (17)
- Pseudohypoparathyroidism Type 1A (11)
- Pseudolymphoma (2)
- Pseudomonas Infections (174)
- Pseudomyxoma Peritonei (30)
- Pseudoneonatal Adrenoleukodystrophy (2)
- Pseudopelade of Brocq (17)
- Pseudophakia (42)
- Pseudopseudohypoparathyroidism (17)
- Pseudotumor Cerebri (32)
- Pseudoxanthoma Elasticum (24)
- Psoriasis (2,000)
- Psoriatic Juvenile Idiopathic Arthritis (11)
- Psychological Trauma (107)
- Psychomotor Agitation (622)
- Psychomotor Disorders (494)
- Psychophysiologic Disorders (18)
- Psychoses, Substance-Induced (6)
- Psychotic Disorders (34,210)
- Pterygium (98)
- Pterygium of the Conjunctiva and Cornea (1)
- Puberty, Delayed (14)
- Puberty, Precocious (57)
- Pubic Symphysis Diastasis (2)
- Pudendal Neuralgia (12)
- Puerperal Disorders (740)
- Puerperal Infection (12)
- Pulmonary Alveolar Proteinosis (27)
- Pulmonary Arterial Hypertension (688)
- Pulmonary Arteriovenous Malformation (17)
- Pulmonary Aspergillosis (90)
- Pulmonary Atelectasis (194)
- Pulmonary Atresia (9)
- Pulmonary Atresia With Ventricular Septal Defect (2)
- Pulmonary Blastoma (8)
- Pulmonary Disease, Chronic Obstructive (3,738)
- Pulmonary Edema (146)
- Pulmonary Edema of Mountaineers (28)
- Pulmonary Embolism (660)
- Pulmonary Emphysema (479)
- Pulmonary Eosinophilia (94)
- Pulmonary Fibrosis (666)
- Pulmonary Heart Disease (55)
- Pulmonary Infarction (1)
- Pulmonary Surfactant Protein B, Deficiency of (2)
- Pulmonary Valve Insufficiency (29)
- Pulmonary Valve Stenosis (26)
- Pulmonary Vein Stenosis (7)
- Pulmonary Veno-Occlusive Disease (2)
- Pulmonary Venous Return Anomaly (5)
- Pulmonic Stenosis (26)
- Pulpitis (203)
- Punctate Inner Choroidopathy (4)
- Pupil Disorders (54)
- Pure Autonomic Failure (67)
- Pure Red Cell Aplasia (67)
- Purine Nucleoside Phosphorylase Deficiency (1)
- Purine-Pyrimidine Metabolism, Inborn Errors (189)
- Purpura (461)
- Purpura Fulminans (5)
- Purpura, Schoenlein-Henoch (32)
- Purpura, Thrombocytopenic (421)
- Purpura, Thrombocytopenic, Idiopathic (378)
- Purpura, Thrombotic Thrombocytopenic (53)
- Pustular Psoriasis (31)
- Pustulosis Palmaris Et Plantaris (25)
- Pyelectasis (1)
- Pyelonephritis (89)
- Pyle Disease (1)
- Pyloric Stenosis (42)
- Pyloric Stenosis, Hypertrophic (5)
- Pyoderma (31)
- Pyoderma Gangrenosum (24)
- Pyomyositis (2)
- Pyonephrosis (2)
- Pyridoxal 5'-phosphate-dependent Epilepsy (2)
- Pyridoxine Deficiency (4)
- Pyridoxine-dependent Epilepsy (3)
- Pyropoikilocytosis Hereditary (1)
- Pyruvate Carboxylase Deficiency (1)
- Pyruvate Carboxylase Deficiency Disease (1)
- Pyruvate Decarboxylase Deficiency (5)
- Pyruvate Dehydrogenase Complex Deficiency (5)
- Pyruvate Dehydrogenase Complex Deficiency Disease (5)
- Pyruvate Dehydrogenase Phosphatase Deficiency (1)
- Pyruvate Kinase Deficiency (13)
- Pyruvate Metabolism, Inborn Errors (32)
- Pyuria (5)