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Study on the Clinical Course Of Pulmonary Embolism (SCOPE)

13 juni 2016 uppdaterad av: Raffaele Pesavento, University of Padova

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.

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.

Studieöversikt

Detaljerad beskrivning

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.

Studietyp

Observationell

Inskrivning (Faktisk)

700

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Sannolikhetsprov

Studera befolkning

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

Beskrivning

Inclusion Criteria:

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

Exclusion Criteria:

  • 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
  • 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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
pulmonary embolism
Consecutive outpatients and inpatients with first episode of acute pulmonary embolism

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
Incidence of chronic thromboembolic pulmonary hypertension
Tidsram: within 3 years
within 3 years

Sekundära resultatmått

Resultatmått
Tidsram
Incidence of recurrent venous thromboembolic events
Tidsram: within 3 years
within 3 years

Andra resultatmått

Resultatmått
Tidsram
Incidence of all-cause mortality
Tidsram: within 3 years
within 3 years
Incidence of Pulmonary Embolism - related mortality
Tidsram: within 3 years
within 3 years

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Studierektor: Raffaele Pesavento, MD, University of Padova
  • Studiestol: Paolo Prandoni, MD,PHD, University of Padova
  • Studiestol: Antonio Pagnan, MD, University of Padova
  • Studiestol: Antonio Palla, MD, University of Pisa, Italy
  • Studiestol: Vittorio Pengo, MD, University of Padova
  • Studiestol: Franco Piovella, MD, University of Pavia - Italy

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 januari 2008

Primärt slutförande (Faktisk)

1 maj 2014

Avslutad studie (Faktisk)

1 juli 2014

Studieregistreringsdatum

Först inskickad

30 januari 2013

Först inskickad som uppfyllde QC-kriterierna

30 januari 2013

Första postat (Uppskatta)

1 februari 2013

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

14 juni 2016

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

13 juni 2016

Senast verifierad

1 juni 2016

Mer information

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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