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Three-Year Follow-up of Radioiodine Therapy for Goitre

Information source: University of Sao Paulo
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Tratment of Multinodular Goitre

Intervention: Radioactive iodine (Radiation)

Phase: N/A

Status: Completed

Sponsored by: University of Sao Paulo

Official(s) and/or principal investigator(s):
Rossana Romão, MD, Principal Investigator, Affiliation: University of São Paulo


Background: Preadministration of recombinant human thyrotropin (rhTSH) increases the amount and homogeneity of thyroid radioiodine uptake, and when used as an adjuvant can augment the efficiency of 131I therapy by allowing multinodular goitre (MNG) volume reduction. Objective: The investigators aimed to assess low-dose rhTSH-aided fixed-activity radioiodine therapy outcome in MNG patients. Design: This was a long-term (36 months) observational study. Methods: The investigators measured 24 h thyroid radioiodine uptake (RAIU) of 1. 4 µCi (0. 5 MBq) of 131-iodine at baseline and 24 h after intramuscular injection of 0. 1 mg rhTSH in 42 patients (aged 42-80 years) who subsequently received 30 mCi 131-iodine 24 h after an identical rhTSH injection. Urinary iodine was measured at baseline and at 3 months after following a low iodine diet. TSH, free thyroxine (FT4), T3 (T3) and thyroglobulin (TG) were measured at baseline, 24 h, 48 h, 72 h, 168 h, one month, 3, 6, 9, 12, 18, 24 and 36 months after therapy. Thyroid volume was assessed by computer tomography at baseline and every 6 months thereafter.

Clinical Details

Official title: Long-Term Follow-up and Outcome of Administering Recombinant Human Thyrotropin as an Adjuvant of Therapy With Radioiodine in the Outpatient Treatment of Multinodular Goitres

Study design: Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Minimum age: 20 Years. Maximum age: N/A. Gender(s): Both.


Inclusion Criteria:

- Patients with multinodular goitre

Exclusion Criteria:

- Aversion to any form of treatment

- Previous radioiodine therapy

- Being unable to complete a prolonged follow-up; and

- Having serious cardiovascular disorders.

Locations and Contacts

Additional Information

Starting date: January 2002
Last updated: October 16, 2008

Page last updated: August 23, 2015

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