Evaluation of biodistribution of I-123 in healthy subjects

Evaluation of biodistribution of I-123 in healthy subjects - Biodistribution of I-123

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000012278

Enrollment

Registered

2013-11-18

Start date

2013-11-20

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 volunteer (Male)

Interventions

Oral Administration of I-123 (in the form of NaI)

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Healthy male Health check up is performed before subject inclusion.

Exclusion criteria

Exclusion criteria: Severe disorder including any of thyroid disease.

Design outcomes

Primary

Measure	Time frame
Thyroid uptake of iodine measured with gamma camera. Blood concentration of radioactive iodine measured with well counter.	—

Countries

Japan

Contacts

Public ContactTakashi Kudo

Atomic Bomb Disease Institute, Nagasaki University Department of Radioisotope Medicine

tkudo123@nagasaki-u.ac.jp095-819-7101

Outcome results

None listed

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