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Status

Suspended 1

Sponsor Class

OTHER 1

Study Type

Observational 1

Sponsor

Cancer Type

Gastrointestinal 1

Conditions

Polycythemia Vera 2Myeloproliferative Disorders 2Lung Neoplasms 2Tuberous Sclerosis 1Smoking 1Renal Insufficiency, Chronic 1Pancreatitis, Chronic 1Pancreatitis 1Pancreatic Cyst 1Non-alcoholic Fatty Liver Disease 1Neoplasms 1Multiple Sclerosis 1Lymphangioleiomyomatosis 1Liver Cirrhosis, Biliary 1Lip Neoplasms 1Irritable Bowel Syndrome 1Inflammatory Bowel Diseases 1Hepatitis 1Head and Neck Neoplasms 1Genetic Predisposition to Disease 1Gastritis 1Fibrosis 1Exocrine Pancreatic Insufficiency 1Endocrine Gland Neoplasms 1Dyslipidemias 1Diabetes Mellitus 1Cystic Fibrosis 1Crohn Disease 1Chronic Pain 1Chronic Disease 1

Interventions

Surveys and Questionnaires 1Phlebotomy 1

Date Range

30 days90 days1 yearAll

Options

Has results Has announcements

Clinical Trials

1 trials
RecentStart dateEnrollment
Celiac Disease × Phlebotomy × 1 year × Clear all
NCT04306939 2026-01-07

GREAT1

University of Pittsburgh

Suspended
120,000 enrolled
Gastrointestinal

Arthritis, Rheumatoid, Celiac Disease, Cholecystitis, Cholelithiasis, Chronic Disease, Crohn Disease, Cystic Fibrosis, Diabetes Mellitus, Fibrosis, Gastritis, Hepatitis, Liver Cirrhosis, Biliary, Multiple Sclerosis, Pancreatic Cyst, Exocrine Pancreatic Insufficiency, Pancreatitis, Inflammatory Bowel Diseases, Irritable Bowel Syndrome, Dyslipidemias, Pancreatitis, Chronic, Renal Insufficiency, Chronic, Chronic Pain, Non-alcoholic Fatty Liver Disease

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