- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00509483
Three-Year Follow-up of Radioiodine Therapy for Goitre
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
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.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
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.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Rossana Romão, MD, University of Sao Paulo
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- PRN 833/02
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