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13C-caffeine breath test for the identification of single nucleotide polymorphisms associated with caffeine metabolism

13C-caffeine breath test for the identification of single nucleotide polymorphisms associated with caffeine metabolism - 13C-caffeine breath test for the identification of single nucleotide polymorphisms associated with caffeine metabolism

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000036735
Enrollment
600
Registered
2019-05-15
Start date
2017-10-31
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

none

Interventions

N-3-methyl-13C caffeine 100mg caffeine 13C3 (trimethyl-13C3) 100mg N-1-methyl-13C caffeine 100mg

Sponsors

Division of Research Planning and Development, Medical Research Support Center, Nihon University School of Medicine.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy adults

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

MeasureTime frame
4 SNPs (rs762551, rs2472297, rs4410790, and rs5751876) in the AUC of the breath 13CO2 to evaluate whether it can be identified.—

Countries

Japan

Contacts

Public ContactYUKIMOTO ISHII

Nihon University School of Medicine Division of Research Planning and Development, Medical Research Support Center

ishii.yukimoto@nihon-u.ac.jp03-3972-8111

Outcome results

None listed

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