Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02809638
Other study ID # Azienda USL Toscana Nord Ovest
Secondary ID
Status Completed
Phase
First received
Last updated
Start date August 2015
Est. completion date June 21, 2017

Study information

Verified date January 2019
Source Azienda Sanitaria Locale ASL 6, Livorno
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

In clinical practice, compression ultrasound (CUS) has become an easy and reliable noninvasive tool for the diagnosis of deep vein thrombosis (DVT).

Currently there are not validated methods to assess the biological age of venous thrombus, and the date of onset of thrombosis. One potential technique to age DVT is ultrasound elastography (UE). UE is a noninvasive technique to measure tissue hardness, and it is well known that thrombi harden as they age. The aim of this study will be to assess the ability of UE to distinguish acute from chronic DVT. The investigators will evaluate prospectively all consecutive outpatients presenting with clinically suspected unprovoked DVT of the lower limbs, and those having a previous diagnosis of DVT for the scheduled 3 months visit of follow-up, for a period of about one year. All the enrolled patients will undergo to the CUS of the lower limbs, and at the same time to the ultrasound elastography by the physician expert in vascular ultrasound. The specialist performing both examinations will be unaware of the time of onset of DVT (acute or chronic). Then the patients will be divided into two groups (group A: patients with acute DVT; group B: patients with chronic DVT at the 3rd month of follow-up). Each examination (CUS and ultrasound elastography) will be repeated three times in the same patient at the same visit, to assess the reproducibility of the technique. The demographic data, medical history, physical examination and the results of CUS and ultrasound elastography will be collected in a case report form (CRF) by another investigator who does not perform the examinations. The blinded CRF will be submitted to a dedicated committee for statistical analysis.


Recruitment information / eligibility

Status Completed
Enrollment 150
Est. completion date June 21, 2017
Est. primary completion date June 21, 2017
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- acute first episode of unprovoked DVT of lower limbs

- chronic first episode of unprovoked DVT of lower limbs (at third month of follow up)

Exclusion Criteria:

- previous episodes of DVT

- ongoing anticoagulation

- age younger than 18 years

- pregnancy

Study Design


Intervention

Other:
ultrasound elastography


Locations

Country Name City State
Italy Azienda USL 6 Livorno Livorno Tuscany

Sponsors (1)

Lead Sponsor Collaborator
Azienda Sanitaria Locale ASL 6, Livorno

Country where clinical trial is conducted

Italy, 

Outcome

Type Measure Description Time frame Safety issue
Primary Density of clots in patients having acute or 3 month DVT of the lower limb, using the technique of elastosonography. 1 year
Secondary Change of the density of the clots measured by elastosonography, assessing the elastic deformability of the thrombus, and correlating it with the time of occurrence of the thrombosis (fresh or three month aged clots) 1 year
See also
  Status Clinical Trial Phase
Recruiting NCT05003843 - BOLT: Study of the Indigo® Aspiration System When Used in Patients With Deep Vein Thrombosis N/A
Recruiting NCT03937947 - Traumatic Brain Injury Associated Radiological DVT Incidence and Significance Study
Withdrawn NCT04136561 - Novel Strategy to Encourage Early Removal of Central Venous Catheters N/A
Completed NCT03420625 - Blood Flow Stimulation in the Lower Limbs by Application of Different External Devices N/A
Recruiting NCT02507180 - Safely Ruling Out Deep Vein Thrombosis in Pregnancy With the LEFt Clinical Decision Rule and D-Dimer
Completed NCT02555111 - Xarelto Versus no Treatment for the Prevention of Recurrent Thrombosis in Patients With Chronic Portal Vein Thrombosis. Phase 3
Completed NCT01975090 - The SENTRY Clinical Study N/A
Terminated NCT02469376 - Evaluation of a New Imagingtechnologie for Thrombosis Phase 1
Completed NCT02037607 - Incidence of Venous Thromboembolism in Children Undergoing Elective Neurosurgical Procedures N/A
Not yet recruiting NCT01357941 - Need for Antepartum Thromboprophylaxis in Pregnant Women With One Prior Episode of Venous Thromboembolism (VTE) N/A
Completed NCT00771303 - Ruling Out Pulmonary Embolism During Pregnancy:a Multicenter Outcome Study
Completed NCT00720915 - D-dimer to Select Patients With First Unprovoked Venous Thromboembolism Who Can Have Anticoagulants Stopped at 3 Months N/A
Completed NCT00773448 - Screening for Occult Malignancy in Patients With Idiopathic Venous Thromboembolism N/A
Completed NCT00244725 - Odiparcil For The Prevention Of Venous Thromboembolism Phase 2
Completed NCT00264277 - D-dimer to Establish Duration of Anticoagulation After Venous Thromboembolism Phase 4
Completed NCT00365950 - 3 Months' Versus 6 Months' Anticoagulation in Patients With DVT and/or PE Phase 4
Completed NCT00182403 - Fixed Dose Heparin Study Phase 3
Completed NCT03682419 - Evaluation of Precision and Accuracy of INR Measurements in a Point of Care Device (OPTIMAL) N/A
Not yet recruiting NCT04981327 - The API-CALF Study: Apixaban to Treat Calf Vein Thrombosis Phase 3
Recruiting NCT03240120 - A Study of Dabigatran Etexilate as Primary Treatment of Malignancy Associated Venous Thromboembolism Phase 3