Drugs / I131
last change Apr 2026 re-read 9 days ago

I131

also known as Radioactive iodine · iodine-131 · RAI

Other / unclassified

Developed for
differentiated thyroid carcinoma · Graves disease · thyroid cancer · thyroid tumor

Trials 0

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Comparator or background therapy5 trials
Phase 2/3 NCT02418247 Comparator May 2013 → Dec 2017 thyroid tumor National Cancer Center, Korea Unknown No outcome recorded
Phase 3 NCT05468554 Background Nov 2022 → Apr 2026 thyroid cancer Medical University of Bialystok Unknown No outcome recorded
Phase 3 NCT04290663 Comparator Mar 2020 → Feb 2031 expected thyroid cancer Centre Francois Baclesse Recruiting No outcome recorded
Phase 3 NCT01837745 Comparator May 2013 → Apr 2022 overdue differentiated thyroid carcinoma Gustave Roussy, Cancer Campus, Grand Paris Active not recruiting No outcome recorded
— NCT02114619 Comparator May 2013 → Dec 2014 Graves disease Mashhad University of Medical Sciences Unknown No outcome recorded

Press releases naming this drug 1 release

DateIssuerRelease
2025-01-30 Curium US LLC Curium Expands European Supply of Iodine-131 Diagnostic Capsules with New Partnership Agreement with Izotop curiumpharma.com ↗

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 6 sources stand behind the page.

FieldValueCited text
Known as I131 “Administration of 3.7 GBq (100 mCi) or 1,1 GBq (30 mCi) of I131 at the choice of the investigator after rhTSH-stimulation” NCT04290663 ↗
4

“Radioactive iodine (I-131)” NCT05468554 ↗

NCT02418247 ↗

NCT02114619 ↗

NCT01837745 ↗

Known as iodine-131 “postoperative administration of radioiodine (iodine-131) is controversial in the absence of demonstrated benefits.” PMID 35263518 ↗ Mar 2022
Known as Radioactive iodine “Radioactive iodine (RAI) administration is an effective and completely established treatment modality in hyperthyroidism including Graves' disease.” NCT02114619 ↗
1

“Radioactive iodine (I-131)” NCT05468554 ↗

Known as RAI “Radioactive iodine (RAI) administration is an effective and completely established treatment modality in hyperthyroidism including Graves' disease.” NCT02114619 ↗
Modality Other / unclassified “Radioactive iodine (RAI) administration is an effective and completely established treatment modality” NCT02114619 ↗
Route Oral “An activity of 1.1 GBq of I131 is given orally 24 hours after the second injection of rhTSH.” NCT01837745 ↗