Osler-Rendu-Weber DiseaseNCT00684879
Screening Behavior in Adults With Hereditary Hemorrhagic Telangiectasia
An observational study of Osler-Rendu-Weber Disease and Osler-Rendu Disease, run by National Human Genome Research Institute (NHGRI) at 1 site in United States.
Trial summary
This study will explore the factors that influence screening behaviors of adults diagnosed with hereditary hemorrhagic telangiectasia (HHT), an inherited condition in which blood vessel defects called arteriovenous malformations (AVMs) result in direct connections between arteries and veins. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Osler-Rendu-Weber Disease, Osler-Rendu Disease, Telangiectasia, Hereditary Hemorrhagic
- How many people
- 320 participants
- Where
- 1 siteUnited States
- Study dates
- 21 May 2008to 7 Jan 2016
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Men and women who self-report having a diagnosis of HHT.
- To read and write English.
Who cannot join
- Individuals younger than 18.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Human Genome Research Institute (NHGRI), 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: Illness Perceptions and the Health Belief Model: Screening Behavior in Adults With Hereditary Hemorrhagic Telangiectasia
This study will explore the factors that influence screening behaviors of adults diagnosed with hereditary hemorrhagic telangiectasia (HHT), an inherited condition in which blood vessel defects called arteriovenous malformations (AVMs) result in direct connections between arteries and veins. Patients most commonly have small AVMs called telangiectases on the tongue, face, hands, mouth, and throat and the mucosal linings of the nose and gastrointestinal tract. Recurrent nosebleeds are a hallmark of the disease. Large AVMs can also occur in various organs, causing sudden and life-threatening complications.
The study will examine how patients think and feel about their condition and what actions they take to screen for internal symptoms of the disease.
Read more
Men and women 18 years of age and older who have HHT may be eligible for this study. Participants fill out a 30-minute questionnaire, available in print or online, that includes questions about the participant s
- beliefs about HHT
- actions taken to screen for internal symptoms of HHT
- experience with HHT
- current health status, family history and demographic information
Read the detailed description
The proposed study aims to understand the factors that influence screening behaviors of adults with hereditary hemorrhagic telangiectasia (HHT). HHT is a chronic condition, but with early diagnosis followed by adherence to recommended screening guidelines, the major complications of this disorder can be avoided and disability or even death can be prevented. Yet, it has come to the attention of healthcare professionals that the recommended screening is not commonly followed by individuals with HHT, even when the risk of serious complications is known. Nonadherence to screening recommendations is not unique to HHT. It is rather common across chronic conditions, and genetic diseases, such as HHT, are no exception. However, HHT may have an added barrier to screening and treatment adherence in that it is a rare and underdiagnosed condition. Inadequate knowledge of healthcare providers may be a serious barrier to prevention, diagnosis, and treatment. The Health Belief Model (HBM) can be used to frame this study of HHT screening. The HBM posits that preventive health behaviors will be acted upon if individuals regard themselves as susceptible to the threat, they believe the consequences to be severe, and the perceived benefits outweigh the perceived barriers. In addition to the HBM constructs, this study will also consider the role of illness representations which provide a more personal view of the lived experience of individuals with HHT. A cosss-sectional design will be used to investigate the relationships among the domains of illness representations, HBM constructs (perceived susceptibility, perceived benefits, barriers, self-efficacy, response efficacy, cues to action), and HHT-specific screening guidelines. Participants will be recruited from the HHT Foundation International, Inc., an outline HHT Awareness social group, and HHT Clinics. Participants will be asked to complete either a web-based or a paper survey. The main outcome measure is screening behaviors and intentions to screen for complications associated with HHT.
- Keywords
- Hereditary Hemorrhagic Telangiectasia, Health Belief Model, Illness Perceptions, Screening, HHT
- Medical subject headings
- Telangiectasia, Hereditary Hemorrhagic
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 May 2008 (estimated)
- Study start21 May 2008
- Study completion7 Jan 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Osler-Rendu-Weber 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
- Time perspective
- Prospective
- Enrolment
- 320 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Human Genome Research Institute (NHGRI)
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Barbara B Biesecker, Principal investigator, National Human Genome Research Institute (NHGRI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00684879
- Sponsor's protocol ID
- 999908143
- Other IDs
- 08-HG-N143
- Status last verified
- 7 Jan 2016
- First submitted
- 24 May 2008
- Last updated
- 25 Nov 2019
- Results posted
- No
Publications
Bayrak-Toydemir P, Mao R, Lewin S, McDonald J. Hereditary hemorrhagic telangiectasia: an overview of diagnosis and management in the molecular era for clinicians. Genet Med. 2004 Jul-Aug;6(4):175-91. doi: 10.1097/01.gim.0000132689.25644.7c.
PubMed 15266205Guttmacher AE, Marchuk DA, White RI Jr. Hereditary hemorrhagic telangiectasia. N Engl J Med. 1995 Oct 5;333(14):918-24. doi: 10.1056/NEJM199510053331407. No abstract available.
PubMed 7666879Rand CS. Measuring adherence with therapy for chronic diseases: implications for the treatment of heterozygous familial hypercholesterolemia. Am J Cardiol. 1993 Sep 30;72(10):68D-74D. doi: 10.1016/0002-9149(93)90014-4.
PubMed 8213501
Study at a glance
From the registry record, last updated by the sponsor on 25 Nov 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Illness Perceptions and the Health Belief Model: Screening Behavior in Adults With Hereditary Hemorrhagic Telangiectasia
- ClinicalTrials.gov ID
- NCT00684879
- Acronym / sponsor ID
- 999908143
- Keywords
- Hereditary Hemorrhagic Telangiectasia, Health Belief Model, Illness Perceptions, Screening, HHT
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 320 participants (actual)
- Lead sponsor
- National Human Genome Research Institute (NHGRI)US National Institutes of Health
- Study start
- 21 May 2008
- Study completion
- 7 Jan 2016
- First posted
- 28 May 2008 (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.
This study will explore the factors that influence screening behaviors of adults diagnosed with hereditary hemorrhagic telangiectasia (HHT), an inherited condition in which blood vessel defects called arteriovenous malformations (AVMs) result in direct connections between arteries and veins. Patients most commonly have small AVMs called telangiectases on the tongue, face, hands, mouth, and throat and the mucosal linings of the nose and gastrointestinal tract. Recurrent nosebleeds are a hallmark of the disease. Large AVMs can also occur in various organs, causing sudden and life-threatening complications.
The study will examine how patients think and feel about their condition and what actions they take to screen for internal symptoms of the disease.
Men and women 18 years of age and older who have HHT may be eligible for this study. Participants fill out a 30-minute questionnaire, available in print or online, that includes questions about the participant s
- beliefs about HHT
- actions taken to screen for internal symptoms of HHT
- experience with HHT
- current health status, family history and demographic information
Detailed description
The proposed study aims to understand the factors that influence screening behaviors of adults with hereditary hemorrhagic telangiectasia (HHT). HHT is a chronic condition, but with early diagnosis followed by adherence to recommended screening guidelines, the major complications of this disorder can be avoided and disability or even death can be prevented. Yet, it has come to the attention of healthcare professionals that the recommended screening is not commonly followed by individuals with HHT, even when the risk of serious complications is known. Nonadherence to screening recommendations is not unique to HHT. It is rather common across chronic conditions, and genetic diseases, such as HHT, are no exception. However, HHT may have an added barrier to screening and treatment adherence in that it is a rare and underdiagnosed condition. Inadequate knowledge of healthcare providers may be a serious barrier to prevention, diagnosis, and treatment. The Health Belief Model (HBM) can be used to frame this study of HHT screening. The HBM posits that preventive health behaviors will be acted upon if individuals regard themselves as susceptible to the threat, they believe the consequences to be severe, and the perceived benefits outweigh the perceived barriers. In addition to the HBM constructs, this study will also consider the role of illness representations which provide a more personal view of the lived experience of individuals with HHT. A cosss-sectional design will be used to investigate the relationships among the domains of illness representations, HBM constructs (perceived susceptibility, perceived benefits, barriers, self-efficacy, response efficacy, cues to action), and HHT-specific screening guidelines. Participants will be recruited from the HHT Foundation International, Inc., an outline HHT Awareness social group, and HHT Clinics. Participants will be asked to complete either a web-based or a paper survey. The main outcome measure is screening behaviors and intentions to screen for complications associated with HHT.
Study design
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Men and women who self-report having a diagnosis of HHT.
- To read and write English.
Key exclusion criteria (1 listed)
- Individuals younger than 18.
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 25 Nov 2019.
- Background: PubMed 15266205Bayrak-Toydemir P, Mao R, Lewin S, McDonald J. Hereditary hemorrhagic telangiectasia: an overview of diagnosis and management in the molecular era for clinicians. Genet Med. 2004 Jul-Aug;6(4):175-91. doi: 10.1097/01.gim.0000132689.25644.7c.
- Background: PubMed 7666879Guttmacher AE, Marchuk DA, White RI Jr. Hereditary hemorrhagic telangiectasia. N Engl J Med. 1995 Oct 5;333(14):918-24. doi: 10.1056/NEJM199510053331407. No abstract available.
- Background: PubMed 8213501Rand CS. Measuring adherence with therapy for chronic diseases: implications for the treatment of heterozygous familial hypercholesterolemia. Am J Cardiol. 1993 Sep 30;72(10):68D-74D. doi: 10.1016/0002-9149(93)90014-4.
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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.
Barbara B Biesecker principal investigator
National Human Genome Research Institute (NHGRI)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Osler-Rendu-Weber Disease and Osler-Rendu Disease, run by National Human Genome Research Institute (NHGRI) at 1 site in United States.
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 2 inclusion and 1 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 25 Nov 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
On the ClinicalTrials.gov record for NCT00684879, which also lists 3 linked publications.
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 25 Nov 2019.