Telangiectasia, Hereditary HemorrhagicNCT00230685
Case Notes Review on Patients With Hereditary Haemorrhagic Telangiectasia
An observational study of Telangiectasia, Hereditary Hemorrhagic, run by Imperial College London at 1 site in United Kingdom.
Trial summary
This observational study is for individuals with Hereditary haemorrhagic telangiectasia and pulmonary arteriovenous malformations that are reviewed at the Hammersmith Hospital, London. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Telangiectasia, Hereditary Hemorrhagic
- How many people
- 2,000 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Jan 2000to Jan 2028
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Patients referred to the hereditary haemorrhagic telangiectasia clinical service at Hammersmith Hospital, imperial College Healthcare NHS Trust
Who may be able to join
- Patients attending Hammersmith Hospital
Who cannot join
- None
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United Kingdom1 site, 1 recruiting
- Recruiting
Respiratory Medicine, Hammersmith Hospital
London, W12 0NN
Claire L Shovlin, c.shovlin@imperial.ac.uk
Claire L Shovlin
About this study
Official title: Hammersmith Hospital Patients With Pulmonary Arteriovenous Malformations (PAVMs) and Hereditary Haemorrhagic Telangiectasia
This observational study is for individuals with Hereditary haemorrhagic telangiectasia and pulmonary arteriovenous malformations that are reviewed at the Hammersmith Hospital, London.
Read the detailed description
The Hammersmith Hospital provides a clinical service for patients with Hereditary haemorrhagic telangiectasia and pulmonary arteriovenous malformations that is unique in the United Kingdom. Measurements obtained as part of standard clinical practice that has evolved since 1985 allow us to assess whether particular groups of individuals that we see are more prone to recognised complications such as strokes, brain abscesses, pregnancy related complications or pulmonary hypertension. We hypothesise that certain clinical characteristics will predict the susceptibility of individuals to particular complications.
- Conditions
- Telangiectasia, Hereditary Hemorrhagic
- Keywords
- Pulmonary arteriovenous malformations
- Medical subject headings
- Telangiectasia, Hereditary Hemorrhagic
What is being measured
The primary outcome is the main question the study is designed to answer.
Stroke
Ischaemic stroke attributable to PAVMs
Measured: Prospective
Venous thromboemboli (VTE)
VTE of any origin
Measured: Prospective
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Oct 2005 (estimated)
- Study startJan 2000
- Primary completionJan 2028 (estimated)
- Study completionJan 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (23)Papers the sponsor has linked to this study.
- Other trials for Telangiectasia, Hereditary HemorrhagicStudies of the same condition, open and under way.
- More trials run by Imperial College LondonThe sponsor's other registered studies.
- 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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 2,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Imperial College London
- Sponsor type
- University, hospital or other
- Collaborators
- The Margaret Hayton HHT Fund
- Responsible party
- Sponsor
- Investigators
- Claire L Shovlin, Principal investigator, Imperial College London
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00230685
- Sponsor's protocol ID
- IC/CLS2
- Status last verified
- Sep 2023
- First submitted
- 29 Sep 2005
- Last updated
- 28 Sep 2023
- Results posted
- No
Publications
Easey AJ, Wallace GM, Hughes JM, Jackson JE, Taylor WJ, Shovlin CL. Should asymptomatic patients with hereditary haemorrhagic telangiectasia (HHT) be screened for cerebral vascular malformations? Data from 22,061 years of HHT patient life. J Neurol Neurosurg Psychiatry. 2003 Jun;74(6):743-8. doi: 10.1136/jnnp.74.6.743.
PubMed 12754343Shovlin CL, Jackson JE, Bamford KB, Jenkins IH, Benjamin AR, Ramadan H, Kulinskaya E. Primary determinants of ischaemic stroke/brain abscess risks are independent of severity of pulmonary arteriovenous malformations in hereditary haemorrhagic telangiectasia. Thorax. 2008 Mar;63(3):259-66. doi: 10.1136/thx.2007.087452. Epub 2007 Nov 2.
PubMed 17981912Shovlin CL, Sulaiman NL, Govani FS, Jackson JE, Begbie ME. Elevated factor VIII in hereditary haemorrhagic telangiectasia (HHT): association with venous thromboembolism. Thromb Haemost. 2007 Nov;98(5):1031-9.
PubMed 18000608Shovlin CL, Sodhi V, McCarthy A, Lasjaunias P, Jackson JE, Sheppard MN. Estimates of maternal risks of pregnancy for women with hereditary haemorrhagic telangiectasia (Osler-Weber-Rendu syndrome): suggested approach for obstetric services. BJOG. 2008 Aug;115(9):1108-15. doi: 10.1111/j.1471-0528.2008.01786.x. Epub 2008 May 30.
PubMed 18518871Roked F, Jackson JE, Fuld J, Basheer FT, Chilvers ER, Beattie S, Shovlin CL. Pulmonary thromboemboli modifying the natural history of pulmonary arteriovenous malformations. Am J Respir Crit Care Med. 2011 Mar 15;183(6):828-9. doi: 10.1164/ajrccm.183.6.828. No abstract available.
PubMed 21471070Livesey JA, Manning RA, Meek JH, Jackson JE, Kulinskaya E, Laffan MA, Shovlin CL. Low serum iron levels are associated with elevated plasma levels of coagulation factor VIII and pulmonary emboli/deep venous thromboses in replicate cohorts of patients with hereditary haemorrhagic telangiectasia. Thorax. 2012 Apr;67(4):328-33. doi: 10.1136/thoraxjnl-2011-201076. Epub 2011 Dec 14.
PubMed 22169361Shovlin CL, Chamali B, Santhirapala V, Livesey JA, Angus G, Manning R, Laffan MA, Meek J, Tighe HC, Jackson JE. Ischaemic strokes in patients with pulmonary arteriovenous malformations and hereditary hemorrhagic telangiectasia: associations with iron deficiency and platelets. PLoS One. 2014 Feb 19;9(2):e88812. doi: 10.1371/journal.pone.0088812. eCollection 2014.
PubMed 24586400Shovlin CL, Tighe HC, Davies RJ, Gibbs JS, Jackson JE. Embolisation of pulmonary arteriovenous malformations: no consistent effect on pulmonary artery pressure. Eur Respir J. 2008 Jul;32(1):162-9. doi: 10.1183/09031936.00126207. Epub 2008 Apr 2.
PubMed 18385173Santhirapala V, Williams LC, Tighe HC, Jackson JE, Shovlin CL. Arterial oxygen content is precisely maintained by graded erythrocytotic responses in settings of high/normal serum iron levels, and predicts exercise capacity: an observational study of hypoxaemic patients with pulmonary arteriovenous malformations. PLoS One. 2014 Mar 17;9(3):e90777. doi: 10.1371/journal.pone.0090777. eCollection 2014.
PubMed 24637882Rizvi A, Macedo P, Babawale L, Tighe HC, Hughes JMB, Jackson JE, Shovlin CL. Hemoglobin Is a Vital Determinant of Arterial Oxygen Content in Hypoxemic Patients with Pulmonary Arteriovenous Malformations. Ann Am Thorac Soc. 2017 Jun;14(6):903-911. doi: 10.1513/AnnalsATS.201611-872OC.
PubMed 28267932Boother EJ, Brownlow S, Tighe HC, Bamford KB, Jackson JE, Shovlin CL. Cerebral Abscess Associated With Odontogenic Bacteremias, Hypoxemia, and Iron Loading in Immunocompetent Patients With Right-to-Left Shunting Through Pulmonary Arteriovenous Malformations. Clin Infect Dis. 2017 Aug 15;65(4):595-603. doi: 10.1093/cid/cix373.
PubMed 28430880Shovlin CL, Buscarini E, Hughes JMB, Allison DJ, Jackson JE. Long-term outcomes of patients with pulmonary arteriovenous malformations considered for lung transplantation, compared with similarly hypoxaemic cohorts. BMJ Open Respir Res. 2017 Oct 13;4(1):e000198. doi: 10.1136/bmjresp-2017-000198. eCollection 2017.
PubMed 29071074Thielemans L, Layton DM, Shovlin CL. Low serum haptoglobin and blood films suggest intravascular hemolysis contributes to severe anemia in hereditary hemorrhagic telangiectasia. Haematologica. 2019 Apr;104(4):e127-e130. doi: 10.3324/haematol.2018.205682. Epub 2018 Oct 18. No abstract available.
PubMed 30337360Fatania G, Gilson C, Glover A, Alsafi A, Jackson JE, Patel MC, Shovlin CL. Uptake and radiological findings of screening cerebral magnetic resonance scans in patients with hereditary haemorrhagic telangiectasia. Intractable Rare Dis Res. 2018 Nov;7(4):236-244. doi: 10.5582/irdr.2018.01103.
PubMed 30560015Gawecki F, Strangeways T, Amin A, Perks J, McKernan H, Thurainatnam S, Rizvi A, Jackson JE, Santhirapala V, Myers J, Brown J, Howard LSGE, Tighe HC, Shovlin CL. Exercise capacity reflects airflow limitation rather than hypoxaemia in patients with pulmonary arteriovenous malformations. QJM. 2019 May 1;112(5):335-342. doi: 10.1093/qjmed/hcz023.
PubMed 30657990
Study at a glance
From the registry record, last updated by the sponsor on 28 Sep 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Hammersmith Hospital Patients With Pulmonary Arteriovenous Malformations (PAVMs) and Hereditary Haemorrhagic Telangiectasia
- ClinicalTrials.gov ID
- NCT00230685
- Acronym / sponsor ID
- IC/CLS2
- Conditions
- Telangiectasia, Hereditary Hemorrhagic
- Keywords
- Pulmonary arteriovenous malformations
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 2,000 participants (estimated)
- Lead sponsor
- Imperial College LondonUniversity, hospital or other
- Collaborators
- The Margaret Hayton HHT Fund
- Study start
- Jan 2000 (actual)
- Primary completion
- Jan 2028 (estimated)
- Study completion
- Jan 2028 (estimated)
- First posted
- 3 Oct 2005 (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 observational study is for individuals with Hereditary haemorrhagic telangiectasia and pulmonary arteriovenous malformations that are reviewed at the Hammersmith Hospital, London.
Detailed description
The Hammersmith Hospital provides a clinical service for patients with Hereditary haemorrhagic telangiectasia and pulmonary arteriovenous malformations that is unique in the United Kingdom. Measurements obtained as part of standard clinical practice that has evolved since 1985 allow us to assess whether particular groups of individuals that we see are more prone to recognised complications such as strokes, brain abscesses, pregnancy related complications or pulmonary hypertension. We hypothesise that certain clinical characteristics will predict the susceptibility of individuals to particular complications.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Patients referred to the hereditary haemorrhagic telangiectasia clinical service at Hammersmith Hospital, imperial College Healthcare NHS Trust
Key inclusion criteria (1 listed)
- Patients attending Hammersmith Hospital
Key exclusion criteria (1 listed)
- None
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
Stroke
Time frame: Prospective
Ischaemic stroke attributable to PAVMs
Venous thromboemboli (VTE)
Time frame: Prospective
VTE of any origin
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Sep 2023.
- Results publication: PubMed 12754343Easey AJ, Wallace GM, Hughes JM, Jackson JE, Taylor WJ, Shovlin CL. Should asymptomatic patients with hereditary haemorrhagic telangiectasia (HHT) be screened for cerebral vascular malformations? Data from 22,061 years of HHT patient life. J Neurol Neurosurg Psychiatry. 2003 Jun;74(6):743-8. doi: 10.1136/jnnp.74.6.743.
- Results publication: PubMed 17981912Shovlin CL, Jackson JE, Bamford KB, Jenkins IH, Benjamin AR, Ramadan H, Kulinskaya E. Primary determinants of ischaemic stroke/brain abscess risks are independent of severity of pulmonary arteriovenous malformations in hereditary haemorrhagic telangiectasia. Thorax. 2008 Mar;63(3):259-66. doi: 10.1136/thx.2007.087452. Epub 2007 Nov 2.
- Results publication: PubMed 18000608Shovlin CL, Sulaiman NL, Govani FS, Jackson JE, Begbie ME. Elevated factor VIII in hereditary haemorrhagic telangiectasia (HHT): association with venous thromboembolism. Thromb Haemost. 2007 Nov;98(5):1031-9.
- Results publication: PubMed 18518871Shovlin CL, Sodhi V, McCarthy A, Lasjaunias P, Jackson JE, Sheppard MN. Estimates of maternal risks of pregnancy for women with hereditary haemorrhagic telangiectasia (Osler-Weber-Rendu syndrome): suggested approach for obstetric services. BJOG. 2008 Aug;115(9):1108-15. doi: 10.1111/j.1471-0528.2008.01786.x. Epub 2008 May 30.
- Results publication: PubMed 21471070Roked F, Jackson JE, Fuld J, Basheer FT, Chilvers ER, Beattie S, Shovlin CL. Pulmonary thromboemboli modifying the natural history of pulmonary arteriovenous malformations. Am J Respir Crit Care Med. 2011 Mar 15;183(6):828-9. doi: 10.1164/ajrccm.183.6.828. No abstract available.
- Results publication: PubMed 22169361Livesey JA, Manning RA, Meek JH, Jackson JE, Kulinskaya E, Laffan MA, Shovlin CL. Low serum iron levels are associated with elevated plasma levels of coagulation factor VIII and pulmonary emboli/deep venous thromboses in replicate cohorts of patients with hereditary haemorrhagic telangiectasia. Thorax. 2012 Apr;67(4):328-33. doi: 10.1136/thoraxjnl-2011-201076. Epub 2011 Dec 14.
- Results publication: PubMed 24586400Shovlin CL, Chamali B, Santhirapala V, Livesey JA, Angus G, Manning R, Laffan MA, Meek J, Tighe HC, Jackson JE. Ischaemic strokes in patients with pulmonary arteriovenous malformations and hereditary hemorrhagic telangiectasia: associations with iron deficiency and platelets. PLoS One. 2014 Feb 19;9(2):e88812. doi: 10.1371/journal.pone.0088812. eCollection 2014.
- Results publication: PubMed 18385173Shovlin CL, Tighe HC, Davies RJ, Gibbs JS, Jackson JE. Embolisation of pulmonary arteriovenous malformations: no consistent effect on pulmonary artery pressure. Eur Respir J. 2008 Jul;32(1):162-9. doi: 10.1183/09031936.00126207. Epub 2008 Apr 2.
- Results publication: PubMed 24637882Santhirapala V, Williams LC, Tighe HC, Jackson JE, Shovlin CL. Arterial oxygen content is precisely maintained by graded erythrocytotic responses in settings of high/normal serum iron levels, and predicts exercise capacity: an observational study of hypoxaemic patients with pulmonary arteriovenous malformations. PLoS One. 2014 Mar 17;9(3):e90777. doi: 10.1371/journal.pone.0090777. eCollection 2014.
- Results publication: PubMed 28267932Rizvi A, Macedo P, Babawale L, Tighe HC, Hughes JMB, Jackson JE, Shovlin CL. Hemoglobin Is a Vital Determinant of Arterial Oxygen Content in Hypoxemic Patients with Pulmonary Arteriovenous Malformations. Ann Am Thorac Soc. 2017 Jun;14(6):903-911. doi: 10.1513/AnnalsATS.201611-872OC.
- Results publication: PubMed 28430880Boother EJ, Brownlow S, Tighe HC, Bamford KB, Jackson JE, Shovlin CL. Cerebral Abscess Associated With Odontogenic Bacteremias, Hypoxemia, and Iron Loading in Immunocompetent Patients With Right-to-Left Shunting Through Pulmonary Arteriovenous Malformations. Clin Infect Dis. 2017 Aug 15;65(4):595-603. doi: 10.1093/cid/cix373.
- Results publication: PubMed 29071074Shovlin CL, Buscarini E, Hughes JMB, Allison DJ, Jackson JE. Long-term outcomes of patients with pulmonary arteriovenous malformations considered for lung transplantation, compared with similarly hypoxaemic cohorts. BMJ Open Respir Res. 2017 Oct 13;4(1):e000198. doi: 10.1136/bmjresp-2017-000198. eCollection 2017.
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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.
Claire L Shovlin principal investigator
Imperial College London
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 Telangiectasia, Hereditary Hemorrhagic, run by Imperial College London at 1 site in United Kingdom.
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 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: looking for participants now, as of the sponsor's last update on 28 Sep 2023. 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 Kingdom. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Claire L Shovlin (0208 383 1000, c.shovlin@imperial.ac.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Stroke (time frame: Prospective). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00230685, which also lists 23 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 28 Sep 2023.