Three-Year Follow-up of Radioiodine Therapy for Goitre - Full Text View

Sponsor:	University of Sao Paulo
Collaborator:	Fundação de Amparo à Pesquisa do Estado de São Paulo
Information provided by:	University of Sao Paulo
ClinicalTrials.gov Identifier:	NCT00509483

Purpose

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.

Condition	Intervention
Tratment of Multinodular Goitre	Radiation: Radioactive iodine

Study Type:	Interventional
Study Design:	Endpoint Classification: Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment
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

Resource links provided by NLM:

MedlinePlus related topics: Thyroid Diseases

Drug Information available for: Cadexomer iodine Iodine

U.S. FDA Resources

Further study details as provided by University of Sao Paulo:

Estimated Enrollment:	40
Study Start Date:	January 2002
Estimated Study Completion Date:	December 2006

Intervention Details:

Radioactive iodine preceded by rhTSH

Eligibility

Ages Eligible for Study:	20 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

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.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00509483

Sponsors and Collaborators

University of Sao Paulo

Fundação de Amparo à Pesquisa do Estado de São Paulo

Investigators

Principal Investigator:

Rossana Romão, MD

University of São Paulo

More Information

No publications provided

ClinicalTrials.gov Identifier:	NCT00509483 History of Changes
Other Study ID Numbers:	PRN 833/02
Study First Received:	July 27, 2007
Last Updated:	October 16, 2008
Health Authority:	Brazil: National Committee of Ethics in Research

Keywords provided by University of Sao Paulo:

multinodular
goitre
recombinant human TSH

Additional relevant MeSH terms:

Goiter
Thyroid Diseases
Endocrine System Diseases
Iodine
Anti-Infective Agents, Local
Anti-Infective Agents

Therapeutic Uses
Pharmacologic Actions
Trace Elements
Micronutrients
Growth Substances
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on February 09, 2012