Frequency of Common Medical Conditions in People With and Without HHT
NCT ID: NCT02464644
Last Updated: 2023-09-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
2174 participants
INTERVENTIONAL
2012-04-30
2015-05-31
Brief Summary
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This will be filled in by both people with HHT, and controls who will be members of the general population without HHT.
The questionnaire has been designed primarily for web based entry, but can also be circulated in paper format on request
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Detailed Description
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The Lead Applicant has spent 20 years working on this rare disease, and identified multiple areas where more evidence is required to assist clinicians and patients with this lifelong condition. A particular issue is what happens when people with HHT have other common medical conditions such as asthma, cancer, diabetes, or heart disease. Do they have the same pattern of problems as the general population? Can they use the same drugs? Are further safeguards needed? For these important questions, current advice can only be based on theoretical considerations and anecdotal data.
The ultimate goal of this study is to use information derived from a questionnaire to provide evidence to assist clinicians treating people with HHT.
Data will be entered from April 2012. Data will be analysed on average 6-8 months after entry.
Conditions
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Study Design
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NON_RANDOMIZED
SINGLE_GROUP
PREVENTION
NONE
Study Groups
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People with HHT
People with HHT will identify themselves within the questionnaire, first by statement of what they think is their diagnosis, and second by provision of the HHT diagnostic criteria within specific questions.
They will be directed to appropriate questions, according to answers to the previous questions.
Questionnaire
To capture large sufficiently large numbers of individuals for appropriate statistical power (see below), a web based questionnaire design was considered the most appropriate tool. SurveyMonkey was identified as the most suitable means to generate the questionnaire, facilitate confidential answers by the target populations, and for analysis of questionnaire data. The designed survey can also be presented in paper format, and used in our clinical service.
Controls without HHT
People without HHT will identify themselves within the questionnaire, first by statement of what they think is their diagnosis, and second by provision of the HHT diagnostic criteria within specific questions.
They will be directed to appropriate questions, according to answers to the previous questions.
Questionnaire
To capture large sufficiently large numbers of individuals for appropriate statistical power (see below), a web based questionnaire design was considered the most appropriate tool. SurveyMonkey was identified as the most suitable means to generate the questionnaire, facilitate confidential answers by the target populations, and for analysis of questionnaire data. The designed survey can also be presented in paper format, and used in our clinical service.
Interventions
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Questionnaire
To capture large sufficiently large numbers of individuals for appropriate statistical power (see below), a web based questionnaire design was considered the most appropriate tool. SurveyMonkey was identified as the most suitable means to generate the questionnaire, facilitate confidential answers by the target populations, and for analysis of questionnaire data. The designed survey can also be presented in paper format, and used in our clinical service.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Capacity to fill in a questionnaire.
Exclusion Criteria
* Unable to fill in a questionnaire
18 Years
ALL
Yes
Sponsors
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Imperial College London
OTHER
Responsible Party
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Principal Investigators
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Claire L Shovlin, PhD MB BChir FRCP
Role: PRINCIPAL_INVESTIGATOR
Imperial College London
Locations
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NHLI Cardiovascular Sciences, Imperial College London
London, , United Kingdom
Countries
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References
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Silva BM, Hosman AE, Devlin HL, Shovlin CL. Lifestyle and dietary influences on nosebleed severity in hereditary hemorrhagic telangiectasia. Laryngoscope. 2013 May;123(5):1092-9. doi: 10.1002/lary.23893. Epub 2013 Feb 12.
Devlin HL, Hosman AE, Shovlin CL. Antiplatelet and anticoagulant agents in hereditary hemorrhagic telangiectasia. N Engl J Med. 2013 Feb 28;368(9):876-8. doi: 10.1056/NEJMc1213554. No abstract available.
Finnamore H, Le Couteur J, Hickson M, Busbridge M, Whelan K, Shovlin CL. Hemorrhage-adjusted iron requirements, hematinics and hepcidin define hereditary hemorrhagic telangiectasia as a model of hemorrhagic iron deficiency. PLoS One. 2013 Oct 16;8(10):e76516. doi: 10.1371/journal.pone.0076516. eCollection 2013.
Hosman AE, Devlin HL, Silva BM, Shovlin CL. Specific cancer rates may differ in patients with hereditary haemorrhagic telangiectasia compared to controls. Orphanet J Rare Dis. 2013 Dec 20;8:195. doi: 10.1186/1750-1172-8-195.
Elphick A, Shovlin CL. Relationships between epistaxis, migraines, and triggers in hereditary hemorrhagic telangiectasia. Laryngoscope. 2014 Jul;124(7):1521-8. doi: 10.1002/lary.24526. Epub 2014 Jan 23.
Shovlin CL, Awan I, Cahilog Z, Abdulla FN, Guttmacher AE. Reported cardiac phenotypes in hereditary hemorrhagic telangiectasia emphasize burdens from arrhythmias, anemia and its treatments, but suggest reduced rates of myocardial infarction. Int J Cardiol. 2016 Jul 15;215:179-85. doi: 10.1016/j.ijcard.2016.04.006. Epub 2016 Apr 7.
Patel T, Elphick A, Jackson JE, Shovlin CL. Injections of Intravenous Contrast for Computerized Tomography Scans Precipitate Migraines in Hereditary Hemorrhagic Telangiectasia Subjects at Risk of Paradoxical Emboli: Implications for Right-to-Left Shunt Risks. Headache. 2016 Nov;56(10):1659-1663. doi: 10.1111/head.12963. Epub 2016 Oct 11.
Shovlin CL, Patel T, Jackson JE. Embolisation of PAVMs reported to improve nosebleeds by a subgroup of patients with hereditary haemorrhagic telangiectasia. ERJ Open Res. 2016 Apr 29;2(2):00035-2016. doi: 10.1183/23120541.00035-2016. eCollection 2016 Apr.
Shovlin CL, Gilson C, Busbridge M, Patel D, Shi C, Dina R, Abdulla FN, Awan I. Can Iron Treatments Aggravate Epistaxis in Some Patients With Hereditary Hemorrhagic Telangiectasia? Laryngoscope. 2016 Nov;126(11):2468-2474. doi: 10.1002/lary.25959. Epub 2016 Apr 23.
Hosman AE, Shovlin CL. Cancer and hereditary haemorrhagic telangiectasia. J Cancer Res Clin Oncol. 2017 Feb;143(2):369-370. doi: 10.1007/s00432-016-2298-x. Epub 2016 Nov 11.
Other Identifiers
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CLS/2012/2
Identifier Type: -
Identifier Source: org_study_id
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