NCT01602445

Brief Summary

The presence of clots in the veins of arms and/or legs or lungs of Cancer patients decreases their quality of life, delays their treatment and may cause death. The best way to avoid new clots is by giving blood thinners before clots are formed, but even some patients who are taking blood thinners may form blood clots. A major problem is that it is difficult to know which patients form clots while they are receiving blood thinners, a situation called treatment failure. Several studies have shown that by doing blood tests that measure the formation of clots, the investigators could know if the patient is responding to the blood thinners. If this is proven, the investigators will be able to apply these tests to all patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
700

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2012

Longer than P75 for all trials

Geographic Reach
1 country

5 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 16, 2012

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 21, 2012

Completed
1 month until next milestone

Study Start

First participant enrolled

July 1, 2012

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2016

Completed
Last Updated

May 11, 2017

Status Verified

May 1, 2017

Enrollment Period

4.3 years

First QC Date

May 16, 2012

Last Update Submit

May 9, 2017

Conditions

Keywords

Venous ThrombosisCoagulation factorsCancerBlood

Outcome Measures

Primary Outcomes (1)

  • Relative changes on biochemical markers

    The following pro-coagulant and thrombin-generation markers will be measured: 1. Prothrombin fragments F1+2; 2. D-dimer, 3. thrombin-antithrombin (TAT) 4. Soluble P-selectin. For each patient, we will calculate baseline values and the relative changes (delta) of procoagulant and thrombin generation markers. The relative changes (delta) will be defined by the percentage of change in the marker at each visit relative to baseline measurement.

    at initiation of anticoagulation (baseline); at 7-14 days; 21-35 days; 37- 44 days; 83-97 days; and 173-187 days after initiation of anticoagulation.

Secondary Outcomes (3)

  • Rates of treatment failure

    6 months

  • Correlation between treatment failure and markers

    6 months after treatment failure

  • Compliance to anticoagulation treatment

    6 months

Study Arms (1)

Cancer patients

All cancer patients with a diagnosed acute symptomatic VTE episode.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Referrals of cancer patients to the Thrombosis clinic at each participating center at the time that an acute episode of VTE has been confirmed ( within 0 +/- 1 day) from the start of anticoagulation treatment. Our centers provide VTE treatment for all the cancer patients in our regions given the design of the Ontario Cancer Program, ensuring a generalizable patient population.

You may qualify if:

  • Patients with any type of cancer (except basal cell and squamous cell carcinoma of the skin) and at any stage of the disease or treatment
  • Confirmed newly diagnosed acute symptomatic VTE (proximal DVT, PE, Arm DVT, Multiple SSPE only)
  • Planned treatment of VTE with low-molecular weight heparin (LMWH)
  • Age 18 years old or older.

You may not qualify if:

  • Planned cell transplant
  • Patient receiving anticoagulation due to other clinical indications
  • Patient who has received more than one therapeutic dose of LMWH
  • Unable or unwilling to provide written, informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Capital Health District Authority

Halifax, Nova Scotia, Canada

Location

Hamilton Health Sciences

Hamilton, Ontario, L8L 0A6, Canada

Location

London Health Science Centre

London, Ontario, N6A 5W9, Canada

Location

The Ottawa Hospital

Ottawa, Ontario, K1H 8L6, Canada

Location

CHUM-Notre-Dame Hospital

Montreal, Quebec, Canada

Location

Related Publications (10)

  • Noble S, Pasi J. Epidemiology and pathophysiology of cancer-associated thrombosis. Br J Cancer. 2010 Apr 13;102 Suppl 1(Suppl 1):S2-9. doi: 10.1038/sj.bjc.6605599.

    PMID: 20386546BACKGROUND
  • Blom JW, Vanderschoot JP, Oostindier MJ, Osanto S, van der Meer FJ, Rosendaal FR. Incidence of venous thrombosis in a large cohort of 66,329 cancer patients: results of a record linkage study. J Thromb Haemost. 2006 Mar;4(3):529-35. doi: 10.1111/j.1538-7836.2006.01804.x.

    PMID: 16460435BACKGROUND
  • Prandoni P, Lensing AW, Piccioli A, Bernardi E, Simioni P, Girolami B, Marchiori A, Sabbion P, Prins MH, Noventa F, Girolami A. Recurrent venous thromboembolism and bleeding complications during anticoagulant treatment in patients with cancer and venous thrombosis. Blood. 2002 Nov 15;100(10):3484-8. doi: 10.1182/blood-2002-01-0108. Epub 2002 Jul 12.

    PMID: 12393647BACKGROUND
  • Coleman R, MacCallum P. Treatment and secondary prevention of venous thromboembolism in cancer. Br J Cancer. 2010 Apr 13;102 Suppl 1(Suppl 1):S17-23. doi: 10.1038/sj.bjc.6605601.

    PMID: 20386545BACKGROUND
  • Lee AY, Levine MN, Baker RI, Bowden C, Kakkar AK, Prins M, Rickles FR, Julian JA, Haley S, Kovacs MJ, Gent M; Randomized Comparison of Low-Molecular-Weight Heparin versus Oral Anticoagulant Therapy for the Prevention of Recurrent Venous Thromboembolism in Patients with Cancer (CLOT) Investigators. Low-molecular-weight heparin versus a coumarin for the prevention of recurrent venous thromboembolism in patients with cancer. N Engl J Med. 2003 Jul 10;349(2):146-53. doi: 10.1056/NEJMoa025313.

    PMID: 12853587BACKGROUND
  • Weitz IC, Israel VK, Waisman JR, Presant CA, Rochanda L, Liebman HA. Chemotherapy-induced activation of hemostasis: effect of a low molecular weight heparin (dalteparin sodium) on plasma markers of hemostatic activation. Thromb Haemost. 2002 Aug;88(2):213-20.

    PMID: 12195692BACKGROUND
  • Traby L, Kaider A, Schmid R, Kranz A, Quehenberger P, Kyrle PA, Eichinger S. The effects of low-molecular-weight heparin at two different dosages on thrombin generation in cancer patients. A randomised controlled trial. Thromb Haemost. 2010 Jul;104(1):92-9. doi: 10.1160/TH09-12-0863. Epub 2010 May 10.

    PMID: 20458441BACKGROUND
  • Kirwan CC, McDowell G, McCollum CN, Kumar S, Byrne GJ. Early changes in the haemostatic and procoagulant systems after chemotherapy for breast cancer. Br J Cancer. 2008 Oct 7;99(7):1000-6. doi: 10.1038/sj.bjc.6604620. Epub 2008 Sep 2.

    PMID: 18766191BACKGROUND
  • Louzada ML, Carrier M, Lazo-Langner A, Dao V, Zhang J, Kovacs MJ, Lee AY, Levine MN, Meyer G, Rodger M, Wells PS. Validation of a clinical prediction rule for risk stratification of recurrent venous thromboembolism in patients with cancer-associated venous thromboembolism. American Society of Hematology, 52nd Annual Meeting, Orlando Florida, December 4-7, 2010. Abstract 4209. Poster Board III-988.

    RESULT
  • Louzada ML, Carrier M, Lazo-Langner A, Dao V, Kovacs MJ, Ramsay TO, Rodger MA, Zhang J, Lee AY, Meyer G, Wells PS. Development of a clinical prediction rule for risk stratification of recurrent venous thromboembolism in patients with cancer-associated venous thromboembolism. Circulation. 2012 Jul 24;126(4):448-54. doi: 10.1161/CIRCULATIONAHA.111.051920. Epub 2012 Jun 7.

Biospecimen

Retention: SAMPLES WITH DNA

Serum specimens Optional DNA banking

MeSH Terms

Conditions

Venous ThromboembolismVenous ThrombosisPulmonary EmbolismNeoplasms

Condition Hierarchy (Ancestors)

ThromboembolismEmbolism and ThrombosisVascular DiseasesCardiovascular DiseasesThrombosisLung DiseasesRespiratory Tract DiseasesEmbolism

Study Officials

  • Philip S Wells, MD

    Ottawa Hospital Research Institute

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 16, 2012

First Posted

May 21, 2012

Study Start

July 1, 2012

Primary Completion

October 1, 2016

Study Completion

October 1, 2016

Last Updated

May 11, 2017

Record last verified: 2017-05

Locations