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Venous ThrombosisNCT01999179

Post-thrombotic Syndrome & Predictors of Recurrence in Catheter-related Thrombosis

A study testing Heparin, Low-Molecular-Weight, or direct oral anticoagulants in people with Venous Thrombosis and Neoplasms, run by Medical College of Wisconsin at 3 sites in United States.

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 goal of the pilot study is to determine if a multicenter prospective cohort study of cancer patients with blood clots associated with catheters is feasible. Cancer patients with catheter-related thrombosis treated with one month of anticoagulation will be evaluated for for post-thrombotic syndrome. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Venous Thrombosis, Neoplasms
What is being tested?
Heparin, Low-Molecular-Weight, or direct oral anticoagulants
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
3 sitesUnited States
Study dates
Jun 2014to 26 Apr 2022
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Upper extremity venous thrombosis associated with an indwelling catheter documented by ultrasound, CT or venography
  • Current hematologic or solid tumor malignancy undergoing chemotherapy, surgery, radiation or hormonal therapy for malignancy.
  • >18 years of age
  • Platelet count >50,000
  • Creatinine clearance >30 ml/min
  • Ability to provide informed consent

Who cannot join

  • Underlying medical condition or chemotherapy requiring long-term anticoagulation
  • Known underlying higher risk thrombophilias including antiphospholipid antibody syndrome, antithrombin, protein C or protein S deficiencies, or homozygosity or compound heterozygosity for prothrombin G20210A or Factor V R506Q mutations.
  • Inability to remove venous catheter
  • Anticipated replacement of central venous catheter within 3 months
  • Major bleeding or clinically relevant non-major bleeding in the preceding 60 days
  • Participation in another clinical trial that requires anticoagulation
Show all 9Show fewer
  • Use of anticoagulant other than low-molecular weight heparin
  • Treatment with thrombolysis
  • Catheter removal >1 month prior to enrollment

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • The Ohio State University

    Columbus, Ohio, 43210

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53226

  • University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Pilot Study of Post-thrombotic Syndrome & Predictors of Recurrence in Cancer Patients With Catheter-related Thrombosis

The goal of the pilot study is to determine if a multicenter prospective cohort study of cancer patients with blood clots associated with catheters is feasible. Cancer patients with catheter-related thrombosis treated with one month of anticoagulation will be evaluated for for post-thrombotic syndrome. Laboratory biomarkers will be evaluated as predictors of recurrent thrombosis.

Read the detailed description

Participants may be referred for screening at Medical College of Wisconsin (MCW) in two possible mechanisms: participant contact study staff from information on Clinical Trials Science Institute (CTSI) FACT website or referral from treating Hematologist or Oncologist. At MCW, an EPIC report will be generated to identify people with catheter related thrombosis (CRT). The treating provider would then be contacted to determine if referral to the study was appropriate. Subjects at Ohio State University (OSU) will be referred from the treating Hematologist or Oncologist. A report generated in Epic will be used to identify people with CRT. The treating provider would then be contacted to determine if referral to the study was appropriate. Participants will be given printed information about the study or verbal explanation using the informational flyer. Verbal consent will be obtained to be screened for participation and contacted by study personnel. Screening will be completed by BloodCenter of Wisconsin (BCW) nurse coordinator. We aim to consent and enroll patients after diagnosis of catheter-related thrombosis and prior to catheter removal. Consent and enrollment (Visit 1) must occur prior to discontinuation of anticoagulation. Participants will be treated with either enoxaparin for one month following catheter removal, or direct oral anticoagulant treatment (apixaban, rivaroxaban, dabigatran, or edoxaban). Anticoagulation will be continued for 1 month after catheter removal. The minimum duration of anticoagulation will be one month and maximum duration is 7 months. The cost of enoxaparin will be the responsibility of the participant as use of the medication is part of routine care. Subjects will be contacted by telephone prior to discontinuation of anticoagulation to review study protocol, assess for bleeding, and see if any continuation rules apply and arrange for research visit 2 in the following 1-2 weeks. Visits 3 and 4 will occur 3 and 6 months after catheter removal, respectively. At visits 3 \& 4, Medical history, cancer history, and medications will be updated. At each visit, participants will be assessed for post-thrombotic syndrome using the modified Villalta scale and functional limitation using the DASH questionnaire. At MCW, surveys will be administered by the research coordinator and/or Translational Research Unit (TRU) staff and physical examination will be completed by BCW nurse coordinator. At OSU, surveys will be administered by research coordinators and physical examination will be administered by research nurse coordinator. Laboratory samples will be obtained for MCW participants only.

Being tested
Heparin, Low-Molecular-Weight, or direct oral anticoagulants
Keywords
catheter related thrombosis, upper extremity deep venous thrombosis, central venous catheters, cancer, Catheters
Medical subject headings
Venous Thrombosis, Neoplasms

What participants receive

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

  • Heparin, Low-Molecular-Weight, or direct oral anticoagulantsDrug

    Also called enoxaparin, apixaban, rivaroxaban, dabigatran

    Cancer patients will be treated with enoxaparin 1 mg/kg subcutaneously every 12 hours for one month following catheter removal or alternate enoxaparin dose or interval based on anti-factor Xa testing obtained by the clinical team or either apixaban, rivaroxaban, dabigatran, edoxaban following a catheter related blood clot

Study groups in NCT01999179
Study groupRoleWhat they receive
low-molecular-weight heparin or direct oral anticoagulantOtherEnoxaparin 1 mg/kg subcutaneously every 12 hours for one month following catheter removal or alternate enoxaparin dose or interval based on anti-factor Xa testing that was obtained by clinical team. Apixaban, rivaroxaban, dabigatran, or edoxaban at standard dosing per FDA package insert for direct oral anticoagulants.
Receives: Drug: Heparin, Low-Molecular-Weight, or direct oral anticoagulants

What is being measured

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

  1. PTS Assessment Completion

    Percentage of participants who completed post-thrombotic syndrome assessments

    Measured: 1 year

Secondary outcomes (1)
  1. Biomarker Sample Collection

    Number of participants that completed sample collection for biomarker analysis to predict recurrent venous thrombosis

    Measured: 1 year

Timeline

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

  1. First posted3 Dec 2013 (estimated)
  2. Study startJun 2014
  3. Primary completion2 Apr 2019
  4. Study completion26 Apr 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01999179
Sponsor's protocol ID
PRO21429
Status last verified
Apr 2022
First submitted
25 Nov 2013
Last updated
18 May 2022
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Heparin, Low-Molecular-Weight, or direct oral anticoagulants in people with Venous Thrombosis and Neoplasms, run by Medical College of Wisconsin at 3 sites in United States.

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 6 inclusion and 9 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 18 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 22 Dec 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

PTS Assessment Completion (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 18 May 2022.

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