Search clinical trials for: Cross sectional and Longitudinal Observational study

Total 478018 results

University of British Columbia

Completed

Breathing and Bones Initiative

Osteoporosis | Obstructive Lung Disease

Canada
A.O.U. Città della Salute e della Scienza

Recruiting

Italian Translation and Validation of the Non-Motor Fluctuation Assessment (NoMoFA) Questionnaire: an Observational, Multicentric, Cross-sectional, 6-months Duration Study on 200 Consecutive Parkinson's Disease Patients. (NoMoFA)

Parkinson's Disease

Italy
Zhujiang Hospital

Recruiting

A Cross-sectional Study on the Association of Peptidoglycan Fragments Derived From Gut Microbiota With Colorectal Cancer

Colorectal Cancer

China
Linnaeus University
World Anti-Doping Agency; Swedish Research Council for Sport Science; Swedish...

Recruiting

Relative Energy Deficiency in Sports (REDs) in Swedish Athletes (REDs-Sweden)

Eating Disorders | RED S

Sweden
Charite University, Berlin, Germany
AstraZeneca

Not yet recruiting

Screen CardRen - A Cross-sectional Observational Cohort Study

Heart Failure | Chronic Kidney Diseases
Al-Azhar University

Not yet recruiting

Evaluation of Abnormal Uterine Bleeding in Adolescents: A Cross Sectional Observational Study

Abnormal Uterine Bleeding
Oğuzhan Kandemir

Recruiting

Evaluation of Chronotype and Central Sensitization in Patients With Fibromyalgia Syndrome

Fibromyalgia Syndrome | Chronotype

Turkey
Peking Union Medical College Hospital

Recruiting

Cross-sectional Survey on Palliative Therapy for Pancreatic Cancer Patient

Pancreatic Cancer

China
Tampere University Hospital
Deaconess Foundation; A-Clinic Foundation

Recruiting

A Cross-Sectional Observational Study on Retained Drug Needle Fragments in People Who Use Intravenous Drugs

Soft Tissue Injuries | Substance Dependence | Foreign Bodies | Drug Abuse, Intravenous | Needle Injury

Finland
Peking Union Medical College Hospital

Recruiting

Cross-sectional Follow-up on Digestive and Social Functions of SPN

Pancreas Cancer | Solid Pseudopapillary Tumor of the Pancreas

China
Alexandria University

Recruiting

Long-term Sequelae of COVID-19 (Myalgic Encephalomyelitis): An International Cross-Sectional Study (ME)

Myalgic Encephalomyelitis

Egypt
University Hospital, Ghent
University Ghent

Completed

24-hour Movement Behaviors Among Normal Weight, Overweight and Obese Adults (OwOb_24hmb)

Overweight and Obesity

Belgium
University of Witwatersrand, South Africa

Active, not recruiting

A Cross-sectional, Observational Study to Characterise Long COVID-19 in an Urban Sample of South African Adults (ChaLOC)

Long COVID

South Africa
Amgen

Completed

A Study to Describe the Characteristics of Patients Treated With Apremilast for Plaque Psoriasis in Italian Routine Clinical Practice (DARWIN)

Plaque Psoriasis

Italy
Casen Recordati S.L.

Completed

Cross-sectional, Non-randomized Observational Study to Assess the Frequency of Reduced Sodium Intake in the Primary Care Setting - LAXAP (LAXAP)

Dietary Deficiency | Sodium

Spain
Hospital Israelita Albert Einstein

Completed

Evaluation of Gastric Content of Volunteers Fasting and Using Semaglutide: an Observational and Cross-sectional Study

Pneumonia, Aspiration | Anesthesia

Brazil
Centre for Immunology & Infection
The University of Hong Kong; Institut Pasteur

Completed

The Healthy Human Global Project - Hong Kong (HHGP-Hong Kong)

Healthy | Immune System and Related Disorders

China
University of Witwatersrand, South Africa
UNITAID

Completed

CHARACTERISE - A Cross-sectional, Observational Study to Characterise the Transition to Dolutegravir-based Regimens in South Africa in Terms of the Emergence of Obesity, Viral Re-suppression and Integration Into Routine Programme Care (CHARACTERISE)

Dolutegravir

South Africa
Centro Cardiologico Monzino

Completed

Psychological Status and Self-care in Chronic Cardiovascular Disease

Depression | Quality of Life | Anxiety | Emotional Stress | Self-care | Chronic Cardiovascular Disease

Italy
Misr University for Science and Technology

Completed

A Cross Sectional Observational Study on Relation Between Oral Manifestation and Hepatitis C in Egypt

Hepatitis C | Oral Manifestations | in Egyptian Population

Egypt
AstraZeneca Turkey
Klinar CRO

Completed

Multicenter Prospective Observational Study Evaluating the Management of Heart Failure (ADAPTATION-HF)

Heart Failure

Turkey
Ziauddin University

Completed

Empathy Levels Among Undergraduate Medical Students in Karachi, Pakistan - a Cross-sectional Study

Empathy

Pakistan
Benha University

Completed

Face Mask Habits and COVID-19 Among University Students in Cairo

COVID-19 | Pandemic, COVID-19 | Face Mask Squeeze

Egypt
Sohag University

Active, not recruiting

Three-Dimensional Ultrasonography Versus Magnetic Resonance Imaging for Fibroid Mapping: A Cross Sectional Observational Study

Three-Dimensional Ultrasonography Versus Magnetic Resonance Imaging for Fibroid Mapping

Egypt
University Medicine Greifswald
University Medical Center Rostock; University of Applied Sciences Neubrandenburg and other collaborators

Completed

Malnutrition in Chronic Gastrointestinal Diseases, Cross-sectional Study

Chronic Pancreatitis | Short Bowel Syndrome | Liver Cirrhoses

Germany
Texas Tech University

Completed

Gender Differences of Neuroanatomical and Neurophysiological Correlates of Risk-proneness in Early Adolescents

Gender | Early Adolescent Behavior

United States
Chinese University of Hong Kong
Hospital Authority of Hong Kong (Bradbury Hospice)

Completed

Demoralization Among Palliative Care Patients and Their Family Caregivers in Hong Kong: A Pilot Study

Demoralization

Hong Kong
University Hospital, Grenoble

Unknown

Effect of Type 1 Diabetes on Sleep Fragmentation (DIAPASOM5)

Type 1 Diabetes

France
Aga Khan University

Completed

TRIGGERING AND PROTECTIVE FACTORS OF BURNOUT IN MEDICAL RESIDENT

Burnout, Professional

Pakistan
Emory University
National Institute of Neurological Disorders and Stroke (NINDS); Allergan; Office... and other collaborators

Completed

The Dystonia Coalition Natural History and Biospecimen Repository for Isolated Dystonias (DCP)

Dystonia

United States, Canada, Australia, Italy, Germany, France, United Kingdom
Direction des Soins de Santé de Base
Dacima Consulting; Eshmoun Clinical Research Center

Withdrawn

Covid-19 In Tunisia: An Observational Cross-Sectional Registry Study (CONNAITRE)

Covid 19 | BCG Vaccination

Tunisia
Northumbria Healthcare NHS Foundation Trust

Completed

A Cross-sectional Study of the Oral Health of Elderly Inpatients in Acute and Subacute Hospitals in Northumberland and North Tyneside

Oral Health

United Kingdom
Modum Bad
University of Oslo

Completed

Loneliness During the NPIs for the COVID-19 Pandemic in Norway: Risk Factors and Associations With Psychopathology

Loneliness, Worry, Rumination, Health Anxiety, Depression, Anxiety

Norway
Member Companies of the Opioid PMR Consortium
World Health Information Science Consultants, LLC; IMS Health

Completed

Cross-Sectional Study to Define and Validate "Doctor/Pharmacy Shopping" as Outcomes Suggestive of Abuse and/or Addiction

Opioid-Related Disorders | Drug Abuse | Opiate Addiction | Narcotic Abuse
Hospital Universitario Marqués de Valdecilla

Unknown

Cross-sectional, Observational, Prospective and Analytical Study:MECHANICAL POWER DAY (MPDay) (MPDay)

Mechanical Ventilation Complication

Spain
Universitaire Ziekenhuizen KU Leuven

Completed

Pulse Wave Analysis and Velocity in Patients With Chronic Renal Failure: a Cross-sectional Observational Study to Assess Association With Left Ventricular Hypertrophy, Uremic Toxins and Inflammation.

Left Ventricular Hypertrophy | Arterial Stiffness | CHRONIC RENAL FAILURE

Belgium
Assistance Publique - Hôpitaux de Paris

Completed

System-IGF-1 Pathway and Alzheimer's Disease (SIGAL)

Mild Cognitive Impairment | Alzheimer's Disease | Cognitive Function 1, Social | Control With Normal Activities of Daily Living

France
Michael Hoelscher
"Marius Nasta" Pulmonology Institute; Clinical Infectious Diseases Research...

Completed

A Blinded, Cross-sectional, Diagnostic Evaluation Study Performed in Pulmonary TB Suspects at the TB Dispensary for Sector 4 of the Marius-Nasta-Institute in Bucharest, Romania

Tuberculosis

Romania
Vista Klinik
University Hospital, Zürich

Completed

Prevalence of DRP and DME Among Type 1 Diabetics Treated With Long-term Intensified Insulin Therapy

Insulin-Dependent Diabetes Mellitus 1

Switzerland
Bayer

Completed

A Cross-sectional, Observational Multicenter Study to Assess the Reasons for Choosing the 3-year Hormonal IUD and Level of IUDs Knowledge Among Women Aged 18 to 29 Years (ANALIA)

Intrauterine Devices, Medicated

Spain
Vista Klinik
University Hospital, Basel, Switzerland

Completed

Prevalence of DRP and DME Among Type 1 Diabetics Treated With Long-term Intensified Insulin Therapy

Insulin-Dependent Diabetes Mellitus 1

Switzerland
Bayer

Completed

An Observational Cross-sectional Study Evaluating the Sociodemographic and Clinical Characteristics of Patients Diagnosed With NVAF With a Risk of Stroke or Systemic Embolism, Who Are on Treatment to Adequately Control Their Coagulation and Treated in Primary Care Centres (SILVER-AP)

Stroke | Atrial Fibrillation | Prevention and Control

Spain
Bayer

Completed

An Observational Cross-sectional Study Evaluating the Use of Re-sources and the Sociodemographic and Clinical Characteristics of Patients Diagnosed With Non-valvular Atrial Fibrillation With a Risk of Stroke or Systemic Embolism on Anticoagulant Therapy and Treated in Primary Care Centers (BRONCE-AP)

Stroke | Atrial Fibrillation | Prevention and Control

Spain
AstraZeneca

Completed

A Cross Sectional Disease/Condition Focused Observational Study on Chronic Obstructive Pulmonary Disease (COPD) (PREFER)

Chronic Obstructive Pulmonary Disease

Italy
Assistance Publique - Hôpitaux de Paris

Completed

Variation of COMT Val158Met Polymorphism Between COM-ON Patients and METHADOSE Patients (COM-ON)

Opioid-related Disorders | Opiate Dependence | Opiate Addiction | Opiate Abuse

France
AstraZeneca

Completed

An Observational, Cross Sectional Study to Assess the Prevalence of Chronic Kidney Disease (CKD) in Type 2 Diabetes Patients (START-INDIA)

Diabetes

India
Liverpool John Moores University
Liverpool University Hospitals NHS Foundation Trust

Completed

CSII in Type 1 Diabetes: Diet, Quality of Life & Cardiometabolic Risks - A Cross-Sectional Study

Type 1 Diabetes

United Kingdom
Kaohsiung Veterans General Hospital.

Unknown

Relationship of Essential Hypertension and Its Treatments on the Postoperative Pain Management: a Prospective, Observational, Cross-sectional Study

Hypertension

Taiwan
National Institute of Dental and Craniofacial Research...

Withdrawn

A Comparative Feasibility Study to Assess the Prevalence and Severity of Dental Caries in Incarcerated People Who Abuse Methamphetamine

Substance-Related Disorders | Dental Caries
AstraZeneca

Completed

Observational Usage Study of Statins in Primary Care in France

Healthy

China

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