Graves' DiseaseNCT00505011
Genetic Polymorphisms Associated With Cigarette Smoking and Risk of Graves' Disease
An observational study of Graves' Disease, run by University of Campinas, Brazil.
Trial summary
Cigarette smoking is a well-recognized risk factor of Graves' disease and, particularly, Graves' ophthalmopathy. Hence, germline polymorphisms of detoxification genes and genes belonging to the major DNA repair/apoptosis pathways might have an important role in disease susceptibility. Read more about this study
- Who is it for?
- Ages 2 years and olderHealthy volunteers can take part
- Conditions the study is for
- Graves' Disease
- How many people
- 1,998 participants
- Where
- No sites listed yet
- Study dates
- Feb 1998to Feb 2007
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 2 years and older
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Who may be able to join
- Graves' disease patients
Who cannot join
None listed.
About this study
Official title: Study of the Influence of the GST, CYP and TP53 Gene Polymorphisms in the Risk of Graves' Disease and Its Outcome.
Cigarette smoking is a well-recognized risk factor of Graves' disease and, particularly, Graves' ophthalmopathy. Hence, germline polymorphisms of detoxification genes and genes belonging to the major DNA repair/apoptosis pathways might have an important role in disease susceptibility. In addition, as some of these genes are regulated by thyroid hormones, they could affect the outcome of these patients. Our objective was to assess the influence of the GST, CYP and TP53 gene polymorphisms in the risk of Graves' disease and its outcome.
Read the detailed description
Although the role of many polymorphisms of genes related to toxins' metabolism has been extensively investigated regarding the susceptibility to thyroid cancer, their influence in thyroid autoimmune diseases risk is still largely unknown. Hence, this study was designed to assess the influence of GSTT1, GSTM1, GSTP1, CYP1A1 and 72TP53 polymorphic inheritance on the susceptibility to Graves' disease and to its response to the treatment.
- Conditions
- Graves' Disease
- Keywords
- susceptibility, genes, environment, ophthalmopathy, outcome
- Medical subject headings
- Graves Disease, Disease Susceptibility, Eye Diseases
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2007 (estimated)
- Study startFeb 1998
- Study completionFeb 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Graves' DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Other
- Enrolment
- 1,998 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Campinas, Brazil
- Sponsor type
- University, hospital or other
- Collaborators
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Investigators
- Laura S Ward, MD, PhD, Principal investigator, State University of Campinas- UNICAMP
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00505011
- Sponsor's protocol ID
- 17072007
- Status last verified
- Jul 2007
- First submitted
- 18 Jul 2007
- Last updated
- 20 Jul 2007
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Jul 2007. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Study of the Influence of the GST, CYP and TP53 Gene Polymorphisms in the Risk of Graves' Disease and Its Outcome.
- ClinicalTrials.gov ID
- NCT00505011
- Acronym / sponsor ID
- 17072007
- Conditions
- Graves' Disease
- Keywords
- susceptibility, genes, environment, ophthalmopathy, outcome
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,998 participants (actual)
- Lead sponsor
- University of Campinas, BrazilUniversity, hospital or other
- Collaborators
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Study start
- Feb 1998
- Study completion
- Feb 2007 (actual)
- First posted
- 20 Jul 2007 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Cigarette smoking is a well-recognized risk factor of Graves' disease and, particularly, Graves' ophthalmopathy. Hence, germline polymorphisms of detoxification genes and genes belonging to the major DNA repair/apoptosis pathways might have an important role in disease susceptibility. In addition, as some of these genes are regulated by thyroid hormones, they could affect the outcome of these patients. Our objective was to assess the influence of the GST, CYP and TP53 gene polymorphisms in the risk of Graves' disease and its outcome.
Detailed description
Although the role of many polymorphisms of genes related to toxins' metabolism has been extensively investigated regarding the susceptibility to thyroid cancer, their influence in thyroid autoimmune diseases risk is still largely unknown. Hence, this study was designed to assess the influence of GSTT1, GSTM1, GSTP1, CYP1A1 and 72TP53 polymorphic inheritance on the susceptibility to Graves' disease and to its response to the treatment.
Study design
- Observational model
- Case-control
- Time perspective
- Other
Who may qualify
- Ages
- 2 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (1 listed)
- Graves' disease patients
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Jul 2007.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Laura S Ward, MD, PhD principal investigator
State University of Campinas- UNICAMP
Questions about this trial
What is this clinical trial studying?
An observational study of Graves' Disease, run by University of Campinas, Brazil.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Jul 2007. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jul 2007.