It collected the saliva in all cases.

2 trials

Sponsors

Hokkaido University Graduate School of Medicine, Hokkaido University

Conditions

head and neck cancer, esophageal cancersquamous cell carcinoma of the esophagus and the head and neck

Unknown Phase

Evaluation of the risk of metachronous squamous cell carcinoma of the esophagus and the head and neck after endoscopic resection for squamous cell carcinoma of the esophagus according to genetic polymorphisms of alcohol dehydrogense-1B and aldehyde dehydrogenase-2.

Active, not recruitingJPRN-UMIN000019852

Hokkaido University Graduate School of Medicinesquamous cell carcinoma of the esophagus and the head and neck

Start: 2015-11-19Target: 300Updated: 2026-06-29

Risk assessment of metachronous squamous cell carcinoma after endoscopic resection for head and neck cancer based on the genetic polymorphisms of alcoholdehydrogenase-1B aldehydedehydrogenase-2

Active, not recruitingJPRN-UMIN000034980

Hokkaido Universityhead and neck cancer, esophageal cancer

Start: 2018-10-02Target: 220Updated: 2026-06-29