Clinical Trials Directory

Explore 21,535 clinical trials worldwide

Showing 21501-21535 of 21,535 trials

Active filters:Status: Active, not recruiting

Clinical Trials (21,535)

NCT00379041
Radiation Therapy With or Without Combination Chemotherapy in Treating Patients With Previously Untreated Stage I or Stage II Hodgkin's Lymphoma
PHASE3Active, not recruiting
1,158 participants
Started: Sep 1, 1993
1 condition1 sponsor0 locations
NCT00642213
A Comparison of Hemorrhagic and Ischemic Strokes Among Blacks and Whites
N/AActive, not recruiting
1,500 participants
Started: Jul 31, 1993 · Completed: Jun 30, 2025
3 conditions2 sponsors1 location
NCT00352924
Agriculture Health Study
N/AActive, not recruiting
89,655 participants
Started: Apr 30, 1993
4 conditions2 sponsors1 location
NCT03356340
The Singapore Chinese Health Study
N/AActive, not recruiting
63,257 participants
Started: Apr 1, 1993 · Completed: Dec 31, 2025
4 conditions2 sponsors0 locations
NCT00769223
Predicting the Risk of Failure in Patients Undergoing Radiation Therapy for Localized Prostate Cancer
N/AActive, not recruiting
3,561 participants
Started: Feb 25, 1993 · Completed: Jan 31, 2026
2 conditions1 sponsor1 location
NCT03138122
The Study of Men Born in 1943
N/AActive, not recruiting
798 participants
Started: Feb 9, 1993 · Completed: Dec 31, 2043
5 conditions1 sponsor1 location
NCT01737242
UK Genetic Prostate Cancer Study: Epidemiology and Molecular Genetics Studies
N/AActive, not recruiting
23,384 participants
Started: Jan 31, 1993 · Completed: Dec 31, 2027
1 condition3 sponsors1 location
NCT00340405
Development of a Biologic Specimen Bank for the Study of Early Markers of Lung Cancer Among Tin Miners in Yunnan, China
N/AActive, not recruiting
9,759 participants
Started: Apr 30, 1992 · Completed: Dec 31, 2040
1 condition1 sponsor1 location
NCT00320008
Intensified Multifactorial Intervention in Patients With Type 2 Diabetes and Microalbuminuria
NAActive, not recruiting
160 participants
Started: Jan 31, 1992 · Completed: Dec 31, 2025
1 condition1 sponsor1 location
NCT03424668
The European Prospective Investigation Into Cancer in Norfolk Prospective Population Study
N/AActive, not recruiting
25,639 participants
Started: Jan 1, 1992 · Completed: Dec 31, 2040
3 conditions3 sponsors0 locations
NCT06371391
Environmental and Occupational Noise Exposure in Relation to Incidence of Type 2 Diabetes
N/AActive, not recruiting
300,000 participants
Started: Jan 1, 1992 · Completed: Dec 31, 2026
1 condition2 sponsors0 locations
NCT01653535
Multisite Prevention of Conduct Problems (Fast Track)
NAActive, not recruiting
891 participants
Started: Mar 31, 1991 · Completed: Aug 31, 2029
2 conditions5 sponsors1 location
NCT06637202
Swebcg 91:A RT. Breast Conserving Surgery With or Without Radiotherapy for Breast Cancer Patients
NAActive, not recruiting
1,187 participants
Started: Jan 1, 1991 · Completed: Dec 31, 2025
1 condition1 sponsor1 location
NCT02295085
Fernald Community Cohort -18 Year Observational Study
N/AActive, not recruiting
9,782 participants
Started: Sep 30, 1990 · Completed: Dec 31, 2025
4 conditions2 sponsors1 location
NCT03285230
The French E3N Prospective Cohort Study
N/AActive, not recruiting
100,000 participants
Started: Jun 15, 1990 · Completed: Dec 15, 2025
14 conditions4 sponsors0 locations
NCT00578240
Molecular Studies and Clinical Correlations in Human Prostatic Disease
N/AActive, not recruiting
5,290 participants
Started: Apr 30, 1990 · Completed: Dec 31, 2026
1 condition55 sponsors1 location
NCT06924476
Optimization of a Decision Formula for Optimal Timing of Immunosuppressive Therapy Initiation in Primary Membranous Nephropathy: A Multicenter Retrospective Cohort Study
N/AActive, not recruiting
282 participants
Started: Jan 1, 1990 · Completed: Sep 30, 2025
1 condition2 sponsors1 location
NCT00002462
RT or No RT Following Chemotherapy in Treating Patients With Stage III/IV Hodgkin's Disease
PHASE3Active, not recruiting
615 participants
Started: Sep 30, 1989
1 condition1 sponsor56 locations
NCT00583804
Implanted Myoelectric Control for Restoration of Hand Function in Spinal Cord Injury
NAActive, not recruiting
10 participants
Started: Apr 1, 1989 · Completed: Sep 30, 2027
2 conditions4 sponsors1 location
NCT01125228
Effectiveness of Zidovudine vs. Zidovudine Plus Alpha Interferon vs. Interferon for Treatment of HIV
N/AActive, not recruiting
180 participants
Started: Oct 19, 1988
1 condition1 sponsor1 location
NCT00005133
Cardiovascular Health Study (CHS)
N/AActive, not recruiting
5,888 participants
Started: Jun 30, 1988 · Completed: Oct 31, 2027
7 conditions2 sponsors6 locations
NCT00871754
Molecular Analysis Of Bladder Cancer
N/AActive, not recruiting
5,000 participants
Started: Apr 30, 1988 · Completed: Dec 31, 2025
2 conditions1 sponsor1 location
NCT00001223
Diagnosis and Treatment of Patients With Cystic Fibrosis
N/AActive, not recruiting
79 participants
Started: Jan 1, 1988
4 conditions1 sponsor1 location
NCT07048717
The Mauritius and Rodrigues Non-Communicable Disease (NCD) Study
N/AActive, not recruiting
39,082 participants
Started: Apr 5, 1987 · Completed: Dec 31, 2050
5 conditions6 sponsors1 location
NCT05439382
Analysis of Root Coverage Stability.
N/AActive, not recruiting
101 participants
Started: Jan 31, 1987 · Completed: Dec 31, 2025
3 conditions4 sponsors1 location
NCT00001163
Clinical, Laboratory, and Epidemiologic Characterization of Individuals and Families at High Risk of Cancer
N/AActive, not recruiting
5,201 participants
Started: Apr 2, 1985
4 conditions1 sponsor1 location
NCT00048958
Cytogenetic Studies in Acute Leukemia and Multiple Myeloma
N/AActive, not recruiting
9,000 participants
Started: Jun 30, 1984
4 conditions2 sponsors137 locations
NCT03221127
Kuopio Ischaemic Heart Disease Risk Factor Study (Nutrition Component)
N/AActive, not recruiting
2,682 participants
Started: Mar 1, 1984 · Completed: Dec 31, 2052
13 conditions1 sponsor0 locations
NCT00005130
Coronary Artery Risk Development in Young Adults
N/AActive, not recruiting
5,115 participants
Started: Jan 31, 1984 · Completed: Jun 30, 2033
6 conditions1 sponsor0 locations
NCT00005152
Nurses' Health Study (Cardiovascular Component)
N/AActive, not recruiting
121,700 participants
Started: Aug 31, 1980 · Completed: Jun 1, 2029
10 conditions2 sponsors0 locations
NCT03815864
Antibodies and Liver Retransplantation
N/AActive, not recruiting
200 participants
Started: Jan 1, 1977 · Completed: Jan 1, 2026
2 conditions1 sponsor0 locations
NCT06638177
Obesity and Obesity-Related Factors and Risk of Herpes Zoster (Shingles) and Postherpetic Neuralgia
N/AActive, not recruiting
200,000 participants
Started: Jun 30, 1976 · Completed: Dec 31, 2027
1 condition2 sponsors0 locations
NCT00005129
Bogalusa Heart Study
N/AActive, not recruiting
11,737 participants
Started: Aug 31, 1973 · Completed: Nov 30, 2029
5 conditions5 sponsors1 location
NCT06371820
ESPRESSO (Epidemiology Strengthened by histoPathology Reports in Sweden)
N/AActive, not recruiting
13,000,000 participants
Started: Jan 1, 1965 · Completed: May 17, 2043
1 condition1 sponsor0 locations
NCT02526082
Long-term Follow-up of the Helsinki Businessmen Study
N/AActive, not recruiting
3,490 participants
Started: Jan 31, 1964 · Completed: Dec 31, 2040
5 conditions1 sponsor0 locations