| The Evaluation of Oral Acitretin in the Treatment of Psoriasis, Cutaneous Disorders of Keratinization, Multiple Basal Cell Carcinomas and Other Retinoid Responsive Diseases (NCT00005660) | National Cancer Institute (NCI) | 1977-10-01 |
| Minneapolis Children's Blood Pressure Study (NCT00005141) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Cooperative Study of The Clinical Course of Sickle Cell Disease (NCT00005277) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Fluorouracil, Semustine, and Vincristine Compared With BCG in Treating Patients With Dukes' B or Dukes' C Colon Cancer That Has Been Removed By Surgery (NCT00427570) | NSABP Foundation Inc | 1977-09-01 |
| Multicenter Investigation of Limitation of Infarct Size (MILIS) (NCT00000493) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Psychosocial Treatment for Acute Low Back Pain (NCT00000418) | Indiana University | 1977-09-01 |
| Early Risk Predictors For Chronic Pulmonary Disease (NCT00005281) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Effects of Strength Training on Knee Osteoarthritis (NCT00000406) | Indiana University | 1977-09-01 |
| Epidemiology of Cardiovascular and Non-Cardiovascular Risk In Chicago (NCT00005140) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Beta-Blocker Heart Attack Trial (BHAT) (NCT00000492) | National Heart, Lung, and Blood Institute (NHLBI) | 1977-09-01 |
| Endoscopic Sclerotherapy and/or Ligation Versus Portacaval Shunt for Bleeding Gastric Varices (NCT00820781) | University of California, San Diego | 1977-08-01 |
| The Swedish Two-County Trial of Mammography Screening (NCT03217539) | Dalarna County Council, Sweden | 1977-07-07 |
| Characterization Of Coronary Prone Pedigrees (NCT00005139) | University of Utah | 1977-07-01 |
| Abnormalities of the Eye's Anterior Chamber, Iris, Cornea and Lens (NCT00001161) | National Eye Institute (NEI) | 1977-07-01 |
| Adrenal Scans With Radioiodine-Labeled Norcholesterol (NP-59) (NCT00591643) | Memorial Sloan Kettering Cancer Center | 1977-07-01 |
| Branch Vein Occlusion Study (NCT00000162) | National Eye Institute (NEI) | 1977-07-01 |
| Studies on Tumors of the Thyroid (NCT00001160) | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | 1977-06-01 |
| Natural History of Thyroid Function Disorders (NCT00001159) | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | 1977-02-01 |
| Antibodies and Liver Retransplantation (NCT03815864) | London Health Sciences Centre | 1977-01-01 |
| Prognostic and Predictive Factors for Small Breast Tumors (NCT03390608) | Karolinska Institutet | 1977-01-01 |
| The Long-term Success of Cardiovascular Surgery in Takayasu Arteritis (NCT03654222) | Instituto Nacional de Cardiologia Ignacio Chavez | 1977-01-01 |