Search clinical trials for: no intervention: observational study
Total 4797 results
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Portsmouth Hospitals NHS TrustManchester Metropolitan UniversityCompletedRetrospective Observational Analysis of a Cohort With Heart Failure With Preserved Ejection FractionHeart Failure With Preserved Ejection FractionUnited Kingdom
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University of Illinois at Urbana-ChampaignNational Institutes of Health (NIH); United States Department of Agriculture... and other collaboratorsActive, not recruitingChild, Only | Child Obesity
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Yefeng CaiUnknownStroke | Transient Ischemic Attack | Cerebral Infarction | Subarachnoid Hemorrhage | Cerebral HemorrhageChina
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Arkansas Children's Hospital Research InstituteNational Institutes of Health (NIH)Completed
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Chinese University of Hong KongUnknownPrediabetes | Cardiovascular Risk FactorsChina
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Johann Wolfgang Goethe University HospitalCompleted
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Centre Hospitalier Universitaire de NiceRecruiting
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Western Sydney Local Health DistrictUniversity of Western SydneyRecruitingHepatitis | Lung Cancer, Non-small Cell | Lung Cancer Stage IVAustralia
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Central Institute of Mental Health, MannheimGerman Research FoundationActive, not recruitingAlcohol Use Disorder | Trauma, PsychologicalGermany
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Universidad Complutense de MadridMinisterio de Economía y Competitividad, SpainRecruitingPeriodontitis | Major Depressive DisorderSpain
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Xuanwu Hospital, BeijingRecruitingCoexistence of Cerebral and Coronary Atherosclerosis | Acute Ischemic Cerebrovascular DiseaseChina
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University Medicine GreifswaldRecruitingMetabolic Syndrome | Chronic Heart FailureGermany
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Xiang XieThe Third Affiliated Hospital of Jinzhou Medical University; Affiliated Traditional...Completed
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Abant Izzet Baysal UniversityCompletedParkinson's Disease and ParkinsonismTurkey
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Aalborg University HospitalNordsimWithdrawnColorectal CancerDenmark
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Centre Hospitalier de CayenneCompleted
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Southern California College of Optometry at Marshall...Ohio State University; University of Houston; Alcon Research; University of Waterloo and other collaboratorsCompletedContact Lens Complication | Contact Lens Acute Red Eye | Contact Lens Related Corneal Infiltrate (Disorder) | Contact Lens-Induced Corneal Fluorescein StainingUnited States, Canada
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Beijing Tiantan HospitalNot yet recruitingInsomnia | Digestive EndoscopyChina
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Guangdong Association of Clinical TrialsUnknownSmall Cell Lung Cancer, Polygonal TypeChina
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Azienda Usl di BolognaRecruiting
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Fifth Affiliated Hospital, Sun Yat-Sen UniversityNanfang Hospital of Southern Medical University; Guangdong traditional Chinese...RecruitingInfections | Nephrotic Syndrome | LymphocyteChina
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Kaiser PermanenteHenry Ford Health SystemActive, not recruitingDeath | Opioid Use Disorder | Opioid OverdoseUnited States
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National Taiwan University HospitalUnknownGastroesophageal Function During General AnesthesiaTaiwan
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Bristol-Myers SquibbCompletedHealthy | Hepatitis CUnited States, Puerto Rico
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University of JordanCompletedAppendicitis | Pediatric Disorder | Hydrocele | ERASJordan
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University of East AngliaCompletedDementia | Hip FracturesUnited Kingdom
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AstraZenecaCompletedBreast Cancer | Oncology | EpidemiologyAlgeria
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University of PennsylvaniaThe Hospital for Sick Children; Mayo Clinic; National University Hospital, Singapore and other collaboratorsActive, not recruiting
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National Institute of Health and NutritionPurdue UniversityCompletedDiet Habit
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University of SurreyUnknown
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University of East AngliaCompletedDementia | Hip Fractures
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Boston Children's HospitalThe Hospital for Sick Children; Baylor College of Medicine; Children's Hospital... and other collaboratorsRecruitingCongenital Heart Disease in ChildrenUnited States, Canada
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University of MinnesotaNot yet recruitingChronic Kidney Disease | End-stage Kidney DiseaseUnited States
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Clinical Research Centre, MalaysiaHospital Queen Elizabeth, MalaysiaTerminatedCovid19 | Critically IllMalaysia
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NHS Greater Glasgow and ClydeUniversity of GlasgowRecruitingRespiration Disorders | Healthy | Asthma in Children | Respiratory Disease | Wheezing | Gastro-Intestinal DisorderUnited Kingdom
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FH Joanneum Gesellschaft mbHRecruitingCognitive Change | AgingAustria
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Tel-Aviv Sourasky Medical CenterCompletedInflammatory Bowel Diseases | Circadian DysregulationIsrael
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University Hospital, AkershusCompleted
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Uppsala UniversityRecruiting
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VA Boston Healthcare SystemRecruitingMild Cognitive ImpairmentUnited States
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Isabelle Herter-AeberliUniversity Children's Hospital, Zurich; Department of Epidemiology and Health...Completed
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Medical University InnsbruckRecruitingSARS-CoV-2 | Post-acute COVID-19 SyndromeAustria
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Universitair Ziekenhuis BrusselCompletedCovid19 | Older People | LymphopeniaBelgium
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Ludwig Boltzmann Institute for Lung HealthCompletedVirus Diseases | COVID-19Austria
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University of LjubljanaCompleted
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Technische Universität DresdenCompleted
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First Affiliated Hospital Xi'an Jiaotong UniversityGeneral Hospital of Ningxia Medical University; Second Affiliated Hospital... and other collaboratorsNot yet recruitingCoronary Artery Disease | Hypertension | Arrhythmias, Cardiac | Heart Valve Diseases | Brain Neoplasms | Myocarditis | Cardiomyopathies | Aortic Dissection | Structural Heart Disease | Heart Neoplasms | Ischemic Cerebrovascular Disease | Hemorrhagic Cerebrovascular DiseaseChina
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CENTOGENE GmbH RostockShire Human Genetic Therapies, Inc.CompletedCerebrovascular AccidentAustria, Belgium, Croatia, Finland, France, Georgia, Germany, Ireland, Italy, Malta, Poland, Portugal, Spain, United Kingdom
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Kalkaal HospitalCompleted