Clinical Trials Directory

Explore 66,650 clinical trials worldwide

Showing 66601-66650 of 66,650 trials

Active filters:Status: Recruiting

Clinical Trials (66,650)

NCT00001355
Detection and Characterization of Host Defense Defects
N/ARecruiting
3,600 participants
Started: Sep 1, 1993
1 condition3 sponsors1 location
NCT04145024
Giessen Pulmonary Hypertension Registry and Biobank
N/ARecruiting
10,000 participants
Started: Jul 31, 1993 · Completed: Jan 15, 2036
1 condition1 sponsor1 location
NCT03029325
Molecular and Genetic Analysis of Lung Cancer
N/ARecruiting
15,000 participants
Started: Jun 30, 1993 · Completed: Sep 30, 2026
1 condition2 sponsors1 location
NCT00001350
Study of Autoimmune Lymphoproliferative Syndrome (ALPS)
N/ARecruiting
1,200 participants
Started: May 13, 1993
1 condition1 sponsor1 location
NCT00009633
Follow-up Visit of High Risk Infants
N/ARecruiting
68,000 participants
Started: Apr 1, 1993 · Completed: Mar 31, 2030
4 conditions3 sponsors31 locations
NCT00001352
Fungal Infection Susceptibility
N/ARecruiting
800 participants
Started: Apr 1, 1993
5 conditions1 sponsor1 location
NCT00001281
Studies of the Pathogenesis of HIV Infection in Human Peripheral Blood Cells and/or Body Fluids in People Living With and Without HIV
N/ARecruiting
2,400 participants
Started: Mar 9, 1993
3 conditions2 sponsors2 locations
NCT04353960
The Alaska Oculocardiac Reflex Study
N/ARecruiting
4,000 participants
Started: Sep 1, 1992 · Completed: Dec 31, 2035
2 conditions1 sponsor1 location
NCT00001316
Viral Load in Blood and Lymph Tissues in People Living With HIV
N/ARecruiting
400 participants
Started: Aug 26, 1992
1 condition1 sponsor1 location
NCT00001248
Magnetic Resonance Imaging (MRI) to Evaluate Activity of Multiple Sclerosis (MS)
N/ARecruiting
3,750 participants
Started: Jul 23, 1992
1 condition1 sponsor1 location
NCT00001979
Immune System Related Kidney Disease
N/ARecruiting
2,000 participants
Started: Jun 25, 1992
2 conditions1 sponsor1 location
NCT00001971
Evaluation of Patients With Liver Disease
N/ARecruiting
8,050 participants
Started: May 27, 1992
4 conditions1 sponsor1 location
NCT05283759
UZ Brussel HRMC Registry of Brugada Syndrome
N/ARecruiting
2,000 participants
Started: Jan 1, 1992 · Completed: Jan 1, 2032
1 condition1 sponsor1 location
NCT02692092
HealthEast Community Hip and Knee Replacement Registry
N/ARecruiting
200,000 participants
Started: Sep 30, 1991 · Completed: Aug 31, 2091
1 condition1 sponsor1 location
NCT04920474
Protocol for a Research Sample Repository for Hematopoietic Cell Transplantation, Other Cellular Therapies and Marrow Toxic Injuries
N/ARecruiting
99,999,999 participants
Started: Jul 31, 1991 · Completed: Jul 31, 2030
4 conditions1 sponsor1 location
NCT05261607
Analysis of the Evolution of Mortality in an Intensive Care Unit
N/ARecruiting
25,000 participants
Started: Jul 1, 1991 · Completed: Oct 31, 2026
7 conditions1 sponsor1 location
NCT00001276
Diagnosing and Treating Low Blood Sugar Levels
N/ARecruiting
1,500 participants
Started: May 21, 1991
2 conditions1 sponsor1 location
NCT00358943
International Collaborative Gaucher Group (ICGG) Gaucher Disease Registry & Pregnancy Sub-registry
N/ARecruiting
12,000 participants
Started: Apr 1, 1991 · Completed: Jan 31, 2034
4 conditions1 sponsor315 locations
NCT00001230
Host Response to Infection and Treatment in Filarial Diseases
N/ARecruiting
500 participants
Started: Mar 15, 1991
5 conditions1 sponsor1 location
NCT01467869
Male Fertility Program
N/ARecruiting
100 participants
Started: Jan 31, 1991 · Completed: Dec 31, 2040
1 condition1 sponsor1 location
NCT03272724
French National Observatory on Infective Endocarditis
N/ARecruiting
5,000 participants
Started: Jan 1, 1991 · Completed: Dec 31, 2027
1 condition70 sponsors1 location
NCT00001238
Von Hippel-Lindau (VHL): Clinical Manifestations, Diagnosis, Management and Molecular Bases of Inherited Renal and Other Urologic Malignant Disorders
N/ARecruiting
5,000 participants
Started: Dec 5, 1990
5 conditions1 sponsor1 location
NCT00001246
Brain Imaging of Childhood Onset Psychiatric Disorders, Endocrine Disorders and Healthy Volunteers
N/ARecruiting
6,000 participants
Started: Jun 19, 1990
3 conditions1 sponsor1 location
NCT01825499
Vermont Oxford Network Very Low Birth Weight Database
N/ARecruiting
60,000 participants
Started: Jan 31, 1990 · Completed: Dec 31, 2040
1 condition1 sponsor1 location
NCT02893761
Bergonie Institute Breast Cancer Database
N/ARecruiting
30,000 participants
Started: Jan 31, 1990 · Completed: Dec 31, 2050
1 condition1 sponsor1 location
NCT00001244
Immune Regulation in Patients With Common Variable Immunodeficiency and Related Inborn Errors of Immunity (IEI)
N/ARecruiting
500 participants
Started: Jan 15, 1990
4 conditions1 sponsor1 location
NCT00001208
Botulinum Toxin for the Treatment of Involuntary Movement Disorders
N/ARecruiting
2,000 participants
Started: Oct 26, 1989
1 condition1 sponsor1 location
NCT00291096
High Risk Breast Clinic: Protocol for Women at Increased Risk for Developing Breast Cancer
N/ARecruiting
3,000 participants
Started: Aug 31, 1989 · Completed: Dec 31, 2026
1 condition1 sponsor1 location
NCT00404989
Antiretroviral Pregnancy Registry (APR): Multi-sponsor Registry to Detect Any Major Teratogenic Effect Involving Any of the Registry Drugs When Administered to Pregnant People.
N/ARecruiting
24,258 participants
Started: Jan 31, 1989 · Completed: Jan 31, 2099
2 conditions28 sponsors1 location
NCT06088719
Safety of Omitting Axillary Surgery in Breast Cancer Patients With Isolated Chest Wall Recurrence
N/ARecruiting
300 participants
Started: Jan 1, 1989 · Completed: Dec 31, 2024
2 conditions1 sponsor1 location
NCT04473833
Transvaginal Ultrasonography As a Screening Method for Ovarian Cancer
NARecruiting
65,000 participants
Started: Dec 19, 1988 · Completed: Dec 31, 2026
1 condition1 sponsor1 location
NCT00181259
Magnetic Resonance Spectroscopy Studies of Cardiac Muscle Metabolism
N/ARecruiting
500 participants
Started: Jan 31, 1988 · Completed: Aug 31, 2028
1 condition2 sponsors1 location
NCT01336855
Collection of Blood for Multiple Collaborative Studies
N/ARecruiting
2,000 participants
Started: Jan 31, 1988 · Completed: Jan 31, 2030
1 condition1 sponsor1 location
NCT02936921
Lyon Cohort of Maternal and Congenital Toxoplasma Infections
N/ARecruiting
4,030 participants
Started: Jan 31, 1988 · Completed: Dec 31, 2025
1 condition1 sponsor1 location
NCT00063063
Generic Database of Very Low Birth Weight Infants
N/ARecruiting
80,000 participants
Started: Apr 1, 1987 · Completed: Mar 31, 2030
4 conditions2 sponsors31 locations
NCT03426488
Northern Sweden Health and Disease Study
N/ARecruiting
120,000 participants
Started: Jan 31, 1986 · Completed: Jan 31, 2026
5 conditions1 sponsor1 location
NCT00001205
Natural History of Treated Neurocysticercosis and Long-Term Outcomes
N/ARecruiting
500 participants
Started: Oct 7, 1985
2 conditions1 sponsor1 location
NCT00001177
Study of Premenstrual Syndrome and Premenstrual Dysphoria
N/ARecruiting
1,600 participants
Started: Mar 9, 1984
1 condition1 sponsor1 location
NCT00114647
Apheresis to Obtain Plasma or White Blood Cells for Laboratory Studies
N/ARecruiting
3,000 participants
Started: Jan 9, 1984
2 conditions1 sponsor1 location
NCT06252168
Registry of Acute Myocardial Infarction
N/ARecruiting
97,500 participants
Started: Jan 1, 1984 · Completed: Dec 31, 2050
1 condition2 sponsors1 location
NCT00001186
Psychological Benefits of a Normalized Camping Experience for Children With Cancer
N/ARecruiting
5,000 participants
Started: Feb 15, 1983
1 condition1 sponsor1 location
NCT00271180
Product Performance Report: Evaluate Long-term Reliability & Performance of Medtronic Marketed Cardiac Therapy Products
N/ARecruiting
20,000 participants
Started: Jan 31, 1983 · Completed: Dec 31, 2040
4 conditions1 sponsor315 locations
NCT00359684
Use of Cysteamine in the Treatment of Cystinosis
N/ARecruiting
330 participants
Started: Jan 4, 1979
1 condition1 sponsor1 location
NCT00369421
Diagnosis and Treatment of Patients With Inborn Errors of Metabolism
N/ARecruiting
4,000 participants
Started: Sep 12, 1978
1 condition1 sponsor1 location
NCT00557726
Diagnosis and Management of Inflammatory and Infectious Diseases
N/ARecruiting
400 participants
Started: Feb 17, 1978
2 conditions1 sponsor1 location
NCT00001160
Studies on Tumors of the Thyroid
N/ARecruiting
2,500 participants
Started: Jun 1, 1977
5 conditions1 sponsor1 location
NCT00001159
Natural History of Thyroid Function Disorders
N/ARecruiting
2,500 participants
Started: Feb 1, 1977
3 conditions1 sponsor1 location
NCT00001987
Genetic Studies of Insulin and Diabetes
N/ARecruiting
1,200 participants
Started: Feb 1, 1976
2 conditions1 sponsor1 location
NCT03546998
Epidermoid Cancer Development in Esophageal Achalasia
N/ARecruiting
681 participants
Started: Jan 1, 1973 · Completed: Dec 31, 2025
2 conditions1 sponsor1 location
NCT06716242
Validation of the MaiRa Preeclampsia Test for Screening Early/Late Preeclampsia in First and Second Trimesters
N/ARecruiting
7,473 participants
1 condition1 sponsor11 locations