The Risk of Venous Clotting in Patients After Renal Transplant (REPORT)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01413464
Recruitment Status : Unknown
Verified July 2013 by Christine Ribic, St. Joseph's Healthcare Hamilton.
Recruitment status was:  Active, not recruiting
First Posted : August 10, 2011
Last Update Posted : July 19, 2013
Astellas Pharma Canada, Inc.
Information provided by (Responsible Party):
Christine Ribic, St. Joseph's Healthcare Hamilton

August 8, 2011
August 10, 2011
July 19, 2013
March 2011
September 2013   (Final data collection date for primary outcome measure)
Deep Vein Thrombosis or Pulmonary Embolism [ Time Frame: 12 months ]
Venous thromboembolism (deep vein thrombosis and pulmonary embolism) is screened for at regular study intervals for 12 months and upon clinical suspicion of an event.
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Complete list of historical versions of study NCT01413464 on Archive Site
Bleeding [ Time Frame: 12 months ]
Clinically significant bleeding is collected with subjective measures and is adjudicated.
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The Risk of Venous Clotting in Patients After Renal Transplant
The Risk of Thromboembolism in Patients Post Renal Transplantation (REPORT) Study

Clots that develop in the deep veins of the legs or the lungs can result in pain, heart and lung disease and may lead to death if unrecognized or not treated. Risk factors for developing clots include surgery, hospitalization and/or being immobile. Up to 10 to 40% of people may develop a clot during or after their hospital stay or surgery, and sometimes these clots do not cause symptoms. In order to help reduce the risk of developing a clot in the legs or lungs, many people undergoing surgery receive a small dose of a blood thinner in hospital after their surgery is completed. Although prescription of a low dose blood thinner is routine practice after most surgeries, the risk or benefit of blood thinners after kidney transplant surgery is still not clear. Given this, many transplant physicians differ in prescribing practices of low dose blood thinners after kidney transplant surgery. More information is needed about the risk of clotting and bleeding in people after kidney transplant surgery so that physicians can become more unified in deciding whether a low dose blood thinner would protect patients after kidney transplant without producing harm.

The REPORT study is designed to examine the risk of clotting in the legs or lungs in people after kidney transplant surgery as well as the risk of bleeding. Ultrasounds of the legs will be performed at various time points after surgery for up to one year to screen for blood clots. People participating in this study will also be screened and monitored for bleeding after surgery. Although this study will also examine the prescription practices of physicians, no blood thinners will be given or withheld from participants as a result of this study. Physicians will prescribe blood thinners as per their usual practice after kidney transplant. Overall, the goal of the study is to find out how frequent clotting and/or bleeding is after kidney transplant surgery, which will help in making recommendations regarding the use of low dose blood thinners in people after their surgery.

Ultrasound scanning of the legs is a safe test that does not cause physical pain and has no risk of causing injury. Participation in this study will provide the benefit of additional monitoring with several ultrasound tests after surgery, screening for clots in the legs which can cause health risks and even death if unrecognized. If a clot is found, it will be treated promptly and according to current medical standards under the care of a specialist.

In the long term, the results of this study will help improve health care delivery to people undergoing kidney transplant with the goal of decreasing potential complications such as clotting and/or bleeding. Currently, there are no guidelines available to guide physician's in the use of a low dose blood thinner after kidney transplant surgery. This study will help determine the risk of clotting or bleeding and help us make recommendations that will reduce potential risks and complications for people undergoing kidney transplant in the future.

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Observational Model: Cohort
Time Perspective: Prospective
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Retention:   Samples With DNA
Plasma samples from participants are being banked at various timepoints.
Probability Sample
Consecutive patients admitted to St. Joseph's Healthcare Hamilton (McMaster University affiliated teaching hospital) to the Renal Transplant Ward for renal transplantation.
  • Venous Thrombosis
  • End Stage Renal Failure With Renal Transplant
  • Deep Vein Thrombosis
  • Pulmonary Embolism
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Unknown status
September 2013
September 2013   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patients greater than or equal to 18 years of age admitted to St. Joseph's Healthcare Hamilton for renal transplantation.

Exclusion Criteria:

  • Patients requiring therapeutic and/or bridging anticoagulation pre and post operatively.

Patients requiring therapeutic anticoagulation preoperatively and anticipate therapeutic anticoagulation postoperatively within 48 hours.

Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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Christine Ribic, St. Joseph's Healthcare Hamilton
St. Joseph's Healthcare Hamilton
Astellas Pharma Canada, Inc.
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St. Joseph's Healthcare Hamilton
July 2013