| Platelet Drug Trial in Coronary Disease Progression (NCT00000496) | National Heart, Lung, and Blood Institute (NHLBI) | 1979-12-01 |
| Clinical Investigation of Infections Due to Leishmanial Parasites (NCT00001169) | National Institute of Allergy and Infectious Diseases (NIAID) | 1979-12-01 |
| Early Treatment Diabetic Retinopathy Study (ETDRS) (NCT00000151) | National Eye Institute (NEI) | 1979-12-01 |
| The Treatment of Stage I and II Carcinoma of the Breast With Mastectomy and Axillary Dissection Versus Excisional Biopsy, Axillary Dissection, and Definitive Irradiation (NCT01468883) | National Cancer Institute (NCI) | 1979-09-04 |
| Coronary Heart Disease Incidence, Mortality, and Risk Factor Relationships (NCT00005148) | National Heart, Lung, and Blood Institute (NHLBI) | 1979-09-01 |
| Epidemiology of Atherosclerosis (NCT00005147) | National Heart, Lung, and Blood Institute (NHLBI) | 1979-09-01 |
| Ultrasound Evaluation of Tongue Movements in Speech and Swallowing (NCT00001167) | National Institutes of Health Clinical Center (CC) | 1979-08-01 |
| Evaluation of Factors in Human Brain Tumors (NCT00001171) | National Institute of Neurological Disorders and Stroke (NINDS) | 1979-07-01 |
| Diabetes and Cardiovascular Risk In Mexico City (San Antonio Heart Study) (NCT00005146) | The University of Texas Health Science Center at San Antonio | 1979-05-01 |
| Minnesota Heart Survey - Risk Factor Survey (NCT00005145) | University of Minnesota | 1979-04-01 |
| Macular Photocoagulation Study (MPS) (NCT00000158) | National Eye Institute (NEI) | 1979-02-01 |
| Use of Cysteamine in the Treatment of Cystinosis (NCT00359684) | National Human Genome Research Institute (NHGRI) | 1979-01-04 |
| Evaluation of Lipoproteins (NCT00001168) | National Heart, Lung, and Blood Institute (NHLBI) | 1979-01-01 |
| Suicide Risk Prediction in Cancer Patients (NCT06167720) | Fang Tang | 1979-01-01 |
| Study of Systemic Amyloidosis Presentation and Prognosis (NCT00004374) | National Center for Research Resources (NCRR) | 1979-01-01 |