Study for usefulness of iodine 123 whole body scintigram for patients of radioiodine therapy

Study for usefulness of iodine 123 whole body scintigram for patients of radioiodine therapy - iodine 123 test

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000015606

Enrollment

Registered

2014-11-10

Start date

2014-11-25

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

thyroid cancer

Interventions

Administration of I 123

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients who is schedule to receive radio iodine therapy and have distant metastasis 2) Equal or over 20 y.o and sex is not concerned 3) Patient with documented IC

Exclusion criteria

Exclusion criteria: 1) Patients for thyroid bed ablation 2) Those can not keep at rest during the scan 3) Patients with underage 4) Bad general condition PS=3 or more 5) Patients with pregnancy 6) Those can not sign to IC 7) Patients with bad renal function (CCr=1.5 or more), or patient undergoing blood dialysis 8) Patients who is thought to be inappropriate by researcher.

Design outcomes

Primary

Measure	Time frame
difference of lesion detectability between iodine131 scintigraphy and iodine 123 scintigraphy	—

Secondary

Measure	Time frame
difference of diagnostic performance and ROC curve	—

Countries

Japan

Contacts

Public ContactShingo Baba

Kyushu University Hospital Clinical Radiology

sbaba127@radiol.med.kyushu-u.ac.jp092-642-5695

Outcome results

None listed

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