NCT00771290 2024-05-01Comparision of Air Versus CO2 for Distention During SigmoidoscopyColumbia UniversityPhase NA Terminated54 enrolled
NCT05018325 2022-08-31Assessing Effect of Withdrawal Time on Adenoma Detection Rate for Screening ColonoscopyWashington University School of MedicinePhase NA Terminated32 enrolled
NCT00865527 2016-03-31Pilot Study of Colon Cancer Screening TestsMcMaster UniversityPhase NA Terminated198 enrolled