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Cardiovascular DiseasesSCOPENCT01781858

Study on the Clinical Course Of Pulmonary Embolism

An observational study of Cardiovascular Diseases and Venous Thromboembolism, run by University of Padova.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The course of both pulmonary embolism (PE) and one of its more relevant late complications, i.e. chronic thromboembolic pulmonary hypertension (CTEPH) is still substantially unknown. Read more about this study

Who is it for?
Ages 18 years and older
How many people
700 participants
Where
No sites listed yet
Study dates
Jan 2008to Jul 2014
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

Study population: Consecutive outpatients or inpatients with an objective diagnosis of first acute PE episode.

Who may be able to join

  • Consecutive Outpatients/Inpatients with acute first episode of acute pulmonary embolism

Who cannot join

  • Pregnancy
  • Age < 18 years
  • expected survival < 2 years
  • previous episodes of VTE
  • need for anticoagulation for reasons other than VTE
  • preexisting severe cardiac or pulmonary diseases
Show all 10Show fewer
  • preexisting diseases that could cause non thromboembolic pulmonary hypertension
  • Patients geographically inaccessible for follow up
  • Low compliance to anticoagulant therapy and planned diagnostic work-up
  • Refusal to give written informed consent

About this study

The course of both pulmonary embolism (PE) and one of its more relevant late complications, i.e. chronic thromboembolic pulmonary hypertension (CTEPH) is still substantially unknown.

Recent evidence has shown that the incidence of CTEPH is higher than previously believed, but this has not been confirmed by other studies. A clear link between PE and CTEPH has been questioned by some experts. A great number of patients affected by PE persistently have residual chronic thromboembolic material the meaning of which is a matter of debate. The evidence sustaining a link between chronic residual PE and subsequent PE recurrences or CTEPH is insufficient.

Read more

Thus, a nationwide, multicentre, prospective cohort study was designed with the following aims:

  1. to ascertain the incidence of symptomatic CTEPH after a first episode of acute PE;
  2. to ascertain the incidence of venous thromboembolic (VTE) recurrences after a first episode of acute PE;
  3. to evaluate whether a relation exists between chronic residual PE and CTEPH
  4. to evaluate whether a relation exists between chronic residual PE and VTE recurrences;
  5. to evaluate whether a relation exists between persistent right ventricular dysfunction and CTEPH;
  6. to evaluate whether a relation exists between persistent right ventricular dysfunction and PE recurrences.

For each enrolling centre, consecutive outpatients or inpatients with an objectively diagnosed first acute PE episode are considered eligible.

Read the detailed description

All patients enrolled in the study received a diagnosis of PE by means of chest CT scan, lung scanning or pulmonary angiography. All patients should undergo an echocardiographic examination during the acute phase of PE, when this is possible. All patients will be treated according to current international guidelines and local protocols. All surviving patients will receive an echocardiographic examination after 6 weeks and 6 months. All surviving patients will receive a perfusional pulmonary scintigraphy at 6 months and be subsequently followed up every 6 months for at least 3 years.

In case of clinical suspicion of VTE recurrence a diagnostic procedure will be performed in order to confirm the recurrent VTE episode ( Chest CT scan, lung scan, Pulmonary angiography, compressive ultrasound, phlebography, vein CT scan).

In case of clinical suspicion of CTEPH, a further diagnostic workup will be performed, consisting in echocardiography, ventilation/perfusion lung scanning, multidetector chest CT scanning, and pulmonary angiography, with direct measurement of the pulmonary-artery pressure.

The extension of pulmonary embolism during the acute phase will be graded according to a standardized scoring system by local investigators while the extension of chronic residual pulmonary embolism will be graded according to a standardized scoring system ( Meyer score) by both local investigators and an independent committee. All outcome events will be centrally adjudicated by an independent committee.

All clinical data ( initial data on medical history, clinical symptoms, presence of risk factors, diagnoses, diagnostic tests results, treatment type and duration, outcome events and other) will be collected by the local investigators in an electronic medical database. Related data will be sent to the coordinating centre on a regular basis. All recruiting centres will be regularly monitored by the coordinating Centre.

Keywords
Pulmonary embolism, Chronic thromboembolic pulmonary hypertension, Venous thromboembolism
Medical subject headings
Cardiovascular Diseases, Venous Thromboembolism, Hypertension, Pulmonary, Pulmonary Embolism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01781858
Study groupRoleWhat they receive
pulmonary embolismConsecutive outpatients and inpatients with first episode of acute pulmonary embolism

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of chronic thromboembolic pulmonary hypertension

    Measured: within 3 years

Secondary outcomes (1)
  1. Incidence of recurrent venous thromboembolic events

    Measured: within 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Feb 2013 (estimated)
  2. Study startJan 2008
  3. Primary completionMay 2014
  4. Study completionJul 2014

Resources

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
700 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01781858
Sponsor's protocol ID
Scope-001
Acronym
SCOPE
Status last verified
Jun 2016
First submitted
30 Jan 2013
Last updated
14 Jun 2016
Results posted
No
Data monitoring committee
No

Publications

  • Pengo V, Lensing AW, Prins MH, Marchiori A, Davidson BL, Tiozzo F, Albanese P, Biasiolo A, Pegoraro C, Iliceto S, Prandoni P; Thromboembolic Pulmonary Hypertension Study Group. Incidence of chronic thromboembolic pulmonary hypertension after pulmonary embolism. N Engl J Med. 2004 May 27;350(22):2257-64. doi: 10.1056/NEJMoa032274.

    PubMed 15163775
  • Becattini C, Agnelli G, Pesavento R, Silingardi M, Poggio R, Taliani MR, Ageno W. Incidence of chronic thromboembolic pulmonary hypertension after a first episode of pulmonary embolism. Chest. 2006 Jul;130(1):172-5. doi: 10.1378/chest.130.1.172.

    PubMed 16840398
  • Lang IM, Pesavento R, Bonderman D, Yuan JX. Risk factors and basic mechanisms of chronic thromboembolic pulmonary hypertension: a current understanding. Eur Respir J. 2013 Feb;41(2):462-8. doi: 10.1183/09031936.00049312. Epub 2012 Jun 14.

    PubMed 22700839
  • Prandoni P, Noventa F, Ghirarduzzi A, Pengo V, Bernardi E, Pesavento R, Iotti M, Tormene D, Simioni P, Pagnan A. The risk of recurrent venous thromboembolism after discontinuing anticoagulation in patients with acute proximal deep vein thrombosis or pulmonary embolism. A prospective cohort study in 1,626 patients. Haematologica. 2007 Feb;92(2):199-205. doi: 10.3324/haematol.10516.

    PubMed 17296569
  • Verso M, Agnelli G, Ageno W, Imberti D, Moia M, Palareti G, Pistelli R, Cantone V; MASTER investigators. Long-term death and recurrence in patients with acute venous thromboembolism: the MASTER registry. Thromb Res. 2012 Sep;130(3):369-73. doi: 10.1016/j.thromres.2012.04.003. Epub 2012 May 13.

    PubMed 22583838
  • Cosmi B, Nijkeuter M, Valentino M, Huisman MV, Barozzi L, Palareti G. Residual emboli on lung perfusion scan or multidetector computed tomography after a first episode of acute pulmonary embolism. Intern Emerg Med. 2011 Dec;6(6):521-8. doi: 10.1007/s11739-011-0577-8. Epub 2011 Apr 3.

    PubMed 21461909
  • Alhadad A, Miniati M, Alhadad H, Gottsater A, Bajc M. The value of tomographic ventilation/perfusion scintigraphy (V/PSPECT) for follow-up and prediction of recurrence in pulmonary embolism. Thromb Res. 2012 Dec;130(6):877-81. doi: 10.1016/j.thromres.2012.09.002. Epub 2012 Sep 29.

    PubMed 23026380
  • Poli D, Miniati M. The incidence of recurrent venous thromboembolism and chronic thromboembolic pulmonary hypertension following a first episode of pulmonary embolism. Curr Opin Pulm Med. 2011 Sep;17(5):392-7. doi: 10.1097/MCP.0b013e328349289a.

    PubMed 21743331
  • Poli D, Grifoni E, Antonucci E, Arcangeli C, Prisco D, Abbate R, Miniati M. Incidence of recurrent venous thromboembolism and of chronic thromboembolic pulmonary hypertension in patients after a first episode of pulmonary embolism. J Thromb Thrombolysis. 2010 Oct;30(3):294-9. doi: 10.1007/s11239-010-0452-x.

    PubMed 20157841
  • Miniati M, Monti S, Bottai M, Scoscia E, Bauleo C, Tonelli L, Dainelli A, Giuntini C. Survival and restoration of pulmonary perfusion in a long-term follow-up of patients after acute pulmonary embolism. Medicine (Baltimore). 2006 Sep;85(5):253-262. doi: 10.1097/01.md.0000236952.87590.c8.

    PubMed 16974210
  • Nijkeuter M, Sohne M, Tick LW, Kamphuisen PW, Kramer MH, Laterveer L, van Houten AA, Kruip MJ, Leebeek FW, Buller HR, Huisman MV; Christopher Study Investigators. The natural course of hemodynamically stable pulmonary embolism: Clinical outcome and risk factors in a large prospective cohort study. Chest. 2007 Feb;131(2):517-23. doi: 10.1378/chest.05-2799.

    PubMed 17296656
  • Nijkeuter M, Hovens MM, Davidson BL, Huisman MV. Resolution of thromboemboli in patients with acute pulmonary embolism: a systematic review. Chest. 2006 Jan;129(1):192-7. doi: 10.1378/chest.129.1.192.

    PubMed 16424432
  • Pepke-Zaba J, Delcroix M, Lang I, Mayer E, Jansa P, Ambroz D, Treacy C, D'Armini AM, Morsolini M, Snijder R, Bresser P, Torbicki A, Kristensen B, Lewczuk J, Simkova I, Barbera JA, de Perrot M, Hoeper MM, Gaine S, Speich R, Gomez-Sanchez MA, Kovacs G, Hamid AM, Jais X, Simonneau G. Chronic thromboembolic pulmonary hypertension (CTEPH): results from an international prospective registry. Circulation. 2011 Nov 1;124(18):1973-81. doi: 10.1161/CIRCULATIONAHA.110.015008. Epub 2011 Oct 3.

    PubMed 21969018
  • Korkmaz A, Ozlu T, Ozsu S, Kazaz Z, Bulbul Y. Long-term outcomes in acute pulmonary thromboembolism: the incidence of chronic thromboembolic pulmonary hypertension and associated risk factors. Clin Appl Thromb Hemost. 2012 Jun;18(3):281-8. doi: 10.1177/1076029611431956. Epub 2012 Jan 23.

    PubMed 22275389
  • Wilkens H, Lang I, Behr J, Berghaus T, Grohe C, Guth S, Hoeper MM, Kramm T, Kruger U, Langer F, Rosenkranz S, Schafers HJ, Schmidt M, Seyfarth HJ, Wahlers T, Worth H, Mayer E. Chronic thromboembolic pulmonary hypertension (CTEPH): updated Recommendations of the Cologne Consensus Conference 2011. Int J Cardiol. 2011 Dec;154 Suppl 1:S54-60. doi: 10.1016/S0167-5273(11)70493-4.

    PubMed 22221974

Questions about this trial

What is this clinical trial studying?

An observational study of Cardiovascular Diseases and Venous Thromboembolism, run by University of Padova.

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 10 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 14 Jun 2016. 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.

What does the primary outcome measure?

Incidence of chronic thromboembolic pulmonary hypertension (time frame: within 3 years). 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 NCT01781858, which also lists 22 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 14 Jun 2016.

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