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Trial registered on ANZCTR
Registration number
ACTRN12621000094875
Ethics application status
Approved
Date submitted
4/12/2020
Date registered
1/02/2021
Date last updated
16/06/2022
Date data sharing statement initially provided
1/02/2021
Type of registration
Prospectively registered
Titles & IDs
Public title
Follow up study of children conceived following a lipiodol HSG (hysterosalpingogram)
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Scientific title
Growth, body composition and developmental assessment of children conceived following a lipiodol hysterosalpingogram
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Secondary ID [1]
302903
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None
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Universal Trial Number (UTN)
U1111-1262-2521
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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:
Cognitive development
319911
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Condition category
Condition code
Neurological
317856
317856
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0
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Studies of the normal brain and nervous system
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Reproductive Health and Childbirth
317857
317857
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0
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Other reproductive health and childbirth disorders
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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
Exposure group are children who were conceived within 6 months of their mother having a hysterosalpingogram with Lipiodol dye. This is a cross-sectional study, the outcomes (cognitive development, growth and body composition) will be measured in one sitting. The duration of a single session is approximately 3 hours.
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Intervention code [1]
319189
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Not applicable
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Comparator / control treatment
The control group are between 6-14 years old, they are the siblings of children in the exposure group. The control group have been born without any assisted reproductive technology.
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Control group
Active
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Outcomes
Primary outcome [1]
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Cognitive development assessed via WISC IV
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Assessment method [1]
325860
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Timepoint [1]
325860
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Single study visit (all primary and secondary outcomes will be measured in one sitting)
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Secondary outcome [1]
389363
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Height assessed via Harpenden stadiometer,
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Assessment method [1]
389363
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Timepoint [1]
389363
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Single study visit
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Secondary outcome [2]
389364
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Body composition (including lean mass, fat free mass, fat mass, body mass, bone mineral density and bone mineral content) assessed via DEXA machine (composite secondary outcome).
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Assessment method [2]
389364
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Timepoint [2]
389364
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Single study visit
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Secondary outcome [3]
390290
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Blood pressure measured with a standard mercury sphygmomanometer.
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Assessment method [3]
390290
0
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Timepoint [3]
390290
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Single study visit
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Secondary outcome [4]
390291
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Weight measured with a Wedderburn VM206 scale.
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Assessment method [4]
390291
0
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Timepoint [4]
390291
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Single study visit.
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Eligibility
Key inclusion criteria
Exposure group: Children who are aged between 6-14 years, and have been conceived within 6 months of their mother receiving lipiodol hysterosalpingogram (HSG).
Control group: children who are aged between 6-14 years and are siblings of a child in the exposure group. They have been conceived without any assisted reproductive technology.
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Minimum age
6
Years
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Maximum age
14
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Overt, pre-existing developmental delay.
Chronic illness that can impact on developmental assessment.
Medication known to affect neurocognitive outcome such as anti-depressives, methylphenidate etc.
A history of recreational drug use including tobacco and alcohol.
Known bone fragility disorders or medical conditions that could affect bone density.
Twins conceived following lipiodol.
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Study design
Purpose
Natural history
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Duration
Cross-sectional
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Selection
Defined population
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Timing
Prospective
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Statistical methods / analysis
We plan to recruit 50 children between 6-14 years old and compare the cognitive development, growth and body composition and compare these parameters with a control group derived from siblings.
A clinically meaningful difference in a full scale WISC developmental assessment is between 5-10 DQ points.
To determine a 6 DQ point difference in a WISC developmental assessment between the two groups with an SD of 10 and a power of 80%, 40 subjects are required in each group, We plan to test 50 to account for dropouts.
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/06/2023
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
100
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
23234
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New Zealand
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State/province [1]
23234
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Funding & Sponsors
Funding source category [1]
307323
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University
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Name [1]
307323
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Research grant administered by the Liggins Institute at the University of Auckland
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Address [1]
307323
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Liggins Institute
The University of Auckland
Private Bag 92019
Victoria Street West
Auckland 1142
New Zealand
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Country [1]
307323
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New Zealand
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Primary sponsor type
University
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Name
University of Auckland, office of research strategy and integrity
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Address
85 park road
Grafton
Auckland 1023
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Country
New Zealand
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Secondary sponsor category [1]
307961
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None
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Name [1]
307961
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Address [1]
307961
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Country [1]
307961
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
307413
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Central Health and Disability Ethics Committee
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Ethics committee address [1]
307413
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133 Molesworth Street Thorndon Wellington 6011 New Zealand
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Ethics committee country [1]
307413
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New Zealand
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Date submitted for ethics approval [1]
307413
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Approval date [1]
307413
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02/02/2021
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Ethics approval number [1]
307413
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20/CEN/225
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Summary
Brief summary
This is a part of a larger study evaluating various safety aspects of an infertility investigation, namely Lipiodol hysterosalpingogram (HSG). Hysterosalpingograms are commonly used by fertility doctors to assess if the fallopian tubes have blockages. Lipiodol is an iodine rich dye used in these assessments. Lipiodol HSGs have been performed for over 100 years, however their popularity increased lately as recent research showed that Lipiodol increased pregnancy rates by around 40%. Lipiodol HSGs have been relatively safe and well tolerated. Some studies have shown that iodine excess and mild underactivity of thyroid gland (subclinical hypothyroidism) could occur following Lipiodol HSG for a short period. As more children are born following Lipiodol HSG, the long term health of these children needs confirming, especially with respect to growth, puberty, development and body composition. Unlike childhood outcomes from other assisted reproductive techniques, there have been no studies thus far to assess the long term outcome of offspring born following Lipiodol HSG. This is where this study comes into play, If the long term safety is ascertained, more infertile couples could benefit from Lipiodol HSG. We plan to recruit 50 children between 6-14 years old who have been conceived within 6 months of their mother having had a Lipiodol HSG and compare their growth, body composition and development with siblings who were conceived without any assisted reproduction or fertility enhancement techniques. While any effect, even if present, is likely to be subtle, this is an important safety check to do. On the other hand, there may be some unexpected benefits or differences which could guide medical management.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
107150
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Prof Paul Hofman
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Address
107150
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Private Bag 92019
Liggins Institute
University of Auckland
Auckland 1142
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Country
107150
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New Zealand
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Phone
107150
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+64 21938 897
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Fax
107150
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Email
107150
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[email protected]
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Contact person for public queries
Name
107151
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Paul Hofman
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Address
107151
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Private Bag 92019
Liggins Institute
University of Auckland
Auckland 1142
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Country
107151
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New Zealand
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Phone
107151
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+64 21938 897
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Fax
107151
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Email
107151
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[email protected]
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Contact person for scientific queries
Name
107152
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Paul Hofman
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Address
107152
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Private Bag 92019
Liggins Institute
University of Auckland
Auckland 1142
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Country
107152
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New Zealand
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Phone
107152
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+64 21938 897
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Fax
107152
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Email
107152
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Doc. No.
Type
Citation
Link
Email
Other Details
Attachment
9896
Study protocol
[email protected]
9897
Ethical approval
[email protected]
9898
Informed consent form
[email protected]
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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