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Trial registered on ANZCTR
Registration number
ACTRN12616000843459
Ethics application status
Approved
Date submitted
22/06/2016
Date registered
28/06/2016
Date last updated
13/06/2018
Type of registration
Prospectively registered
Titles & IDs
Public title
Weight gain and appetite changes following treatment for thyrotoxicosis – a pilot study
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Scientific title
Weight gain and appetite changes following treatment for thyrotoxicosis – a pilot study
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Secondary ID [1]
289517
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Nil
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Universal Trial Number (UTN)
U1111-1184-5563
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Thyrotoxicosis
299221
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Condition category
Condition code
Metabolic and Endocrine
299229
299229
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0
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Thyroid disease
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Intervention/exposure
Study type
Observational
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Patient registry
False
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Assessment of weight and appetite changes in response to treatment for thyrotoxicosis
Participants will be weighed on digital scales and asked to complete and appetite questionnaire and assessment of appetite on a 100mm visual analogue scale whilst fasting. This will take about 10 minutes.
Each participant will complete the assessment session at enrolment, 6 weeks, 6 months and 12 months.
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Intervention code [1]
295109
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Not applicable
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Comparator / control treatment
Patients who are euthyroid with structural thyroid disease
Participants will be weighed on digital scales and asked to complete and appetite questionnaire and assessment of appetite on a 100mm visual analogue scale whilst fasting. This will take about 10 minutes. This group will also undergo assessments at 4 time points i.e. baseline, 6 weeks, 6 months and 12 months.
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Control group
Active
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Outcomes
Primary outcome [1]
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Change in body weight from baseline measured using digital scales
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Assessment method [1]
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Timepoint [1]
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Baseline, 6 weeks, 6 months and 12 months
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Secondary outcome [1]
325035
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Alteration in appetite based on assessment using visual analogue scale
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Assessment method [1]
325035
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Timepoint [1]
325035
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Baseline, 6 weeks, 6 months and 12 months
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Secondary outcome [2]
325123
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Alteration in appetite by assessment of a questionnaire - Three Factor Eating Questionnaire
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Assessment method [2]
325123
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Timepoint [2]
325123
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Baseline, 6 weeks, 6 months and 12 months
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Eligibility
Key inclusion criteria
Patients presenting with overt thyrotoxicosis
Able to consent
For controls - normal thyroid function, able to consent, being assessed in thyroid clinic for structural thyroid disease e.g. nodule
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Minimum age
16
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Unable to consent
Subclinical thyrotoxicosis
Current pregnancy or pregnancy within the past 6 months
These exclusions are the same for both participants and controls
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Study design
Purpose
Natural history
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Duration
Longitudinal
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Selection
Defined population
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Timing
Prospective
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Statistical methods / analysis
This is a pilot study to assess feasibility and depending on results will be used to design a larger study with appropriate power calculations.
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/08/2016
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Actual
15/08/2016
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Date of last participant enrolment
Anticipated
31/10/2016
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Actual
3/10/2016
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Date of last data collection
Anticipated
8/09/2017
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Actual
3/10/2017
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Sample size
Target
20
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Accrual to date
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Final
20
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Recruitment outside Australia
Country [1]
7981
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New Zealand
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State/province [1]
7981
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Waikato
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Funding & Sponsors
Funding source category [1]
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University
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Name [1]
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University of Auckland
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Address [1]
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University of Auckland,
Waikato Clinical Campus
Private Bag 3200
Hamilton 3240
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Country [1]
293888
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New Zealand
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Primary sponsor type
Hospital
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Name
Waikato Hospital
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Address
Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country
New Zealand
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
292715
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Country [1]
292715
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Other collaborator category [1]
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Individual
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Name [1]
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Associate Professor John V Conaglen
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Address [1]
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Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country [1]
279045
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New Zealand
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Other collaborator category [2]
279046
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Individual
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Name [2]
279046
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Dr Jade Tamatea
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Address [2]
279046
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Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country [2]
279046
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New Zealand
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
295308
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Northern Y Regional Ethics committee
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Ethics committee address [1]
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Ministry of Health Ethics Department Freyberg Building Reception – Ground Floor 20 Aitken Street Wellington 6011
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Ethics committee country [1]
295308
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New Zealand
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Date submitted for ethics approval [1]
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08/06/2016
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Approval date [1]
295308
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20/07/2016
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Ethics approval number [1]
295308
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16/CEN/78
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Summary
Brief summary
Thyrotoxicosis is a common endocrine disorder. During the time an individual is hyperthyroid with untreated thyrotoxicosis, despite an increase in appetite weight loss is commonly reported. Most patients with thyrotoxicosis are initially treated with anti-thyroid medications to achieve a euthyroid state. With restoration of normal thyroid levels, most patients not only regain the weight they had previously lost, but continue to gain additional weight over the subsequent several months. This has significant implications for adherence with medical therapy, particularly if the person perceives the extra weight gain to be a result of treatment. Understanding why patients with thyrotoxicosis continue to gain weight after the restoration of a euthyroid state and investigating the regulation of appetite control in these patients has the potential to contribute to our understanding of obesity and provide insight new approaches to treatment of the hyperthyroid state.
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Trial website
None
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Trial related presentations / publications
None
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Public notes
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Contacts
Principal investigator
Name
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Dr Marianne Elston
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Address
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Department of Endocrinology
Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country
66838
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New Zealand
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Phone
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+6478398899
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Fax
66838
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Email
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[email protected]
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Contact person for public queries
Name
66839
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Marianne Elston
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Address
66839
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Department of Endocrinology
Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country
66839
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New Zealand
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Phone
66839
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+6478398899
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Fax
66839
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Email
66839
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[email protected]
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Contact person for scientific queries
Name
66840
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Marianne Elston
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Address
66840
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Department of Endocrinology
Waikato Hospital
Private Bag 3200
Hamilton 3240
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Country
66840
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New Zealand
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Phone
66840
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+6478398899
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Fax
66840
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Email
66840
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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