Effect of ALDH2 polymorphism, gastric acid secretion level, and L-cystein administration on gastric acetaldehyde concentration

Effect of ALDH2 polymorphism, gastric acid secretion level, and L-cystein administration on gastric acetaldehyde concentration - Effect of ALDH2 polymorphism, gastric acid secretion level, and L-cystein administration on gastric acetaldehyde concentration

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000012378

Enrollment

Registered

2013-11-25

Start date

2013-01-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

healthy volunterrs

Interventions

proton pump inhibito proton pump inhibito, L-cystein

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: H. pylori-negative healthy male volunteers

Exclusion criteria

Exclusion criteria: ALDH2 dufficient subjects

Design outcomes

Primary

Measure	Time frame
Change of gastric acetaldehyde concentration among baseline, on PPI, and on PPI plus L-cystein	—

Countries

Japan

Contacts

Public ContactIijima Katsunori

Tohoku University Hospital Div. of Gastroenterology

kiijima@med.tohoku.ac.jp022-717-7171

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026