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Cardiovascular DiseasePhase 3HIT/TSNCT00079508

Angiomax in Patients With HIT/HITTS Type II Undergoing CPB

A Phase 3 study testing Angiomax (bivalirudin) in people with Cardiovascular Disease and Coronary Artery Bypass Surgery, run by The Medicines Company at 1 site 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 purpose of this study is to demonstrate that in patients with heparin-induced thrombocytopenia (HIT)/heparin-induced thrombocytopenia and thrombosis syndrome (HITTS) Type II undergoing cardiac surgery on cardiopulmonary bypass (CPB), Angiomax is a safe and effective anticoagulant. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Angiomax (bivalirudin)
Type of treatment
Injection or infusion
How many people
125 participants
Where
1 siteUnited States
Study dates
Apr 2004to Oct 2005
Phase
Phase 3
Are there results?
None posted in the registry

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

  • Provide written informed consent before initiation of any study-related procedures, and
  • Be at least 18 years of age, and
  • Be scheduled for CABG, CABG single valve surgery, or isolated single valve surgery on CPB. Patients undergoing repeat (redo) CABG are also considered eligible for this study, and demonstrated
  • New diagnosis or history of objectively documented HIT/HITTS Type II, defined as one or more of the following:
  • Positive heparin-induced platelet aggregation (HIPA) or other functional assay for HIT or immunoassay for HIT antibodies (ELISA), AND/OR
  • HIT: Thrombocytopenia associated with heparin therapy, where the platelet count has decreased by 50%*, OR
  • HITTS: Thrombocytopenia (as defined in B above) PLUS any evidence of arterial or venous thrombosis

Who cannot join

  • Confirmed pregnancy at time of enrollment via IVRS (if woman of child-bearing potential) (Urine or serum pregnancy test)
  • Cerebrovascular accident within 6 months, or any cerebrovascular accident with a residual neurological deficit.
  • Intracranial neoplasm, arteriovenous malformation or aneurysm.
  • Dependency on renal dialysis or creatinine clearance <30mL/min.
  • Ongoing treatment with warfarin (or other oral anticoagulant) at the time of enrollment.
  • Patients previously treated with warfarin may be enrolled if warfarin therapy can be safely discontinued and baseline INR is < 1.3 times control in the absence of heparin therapy.
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  • Known allergy to Angiomax or hirudin derived drugs, or known sensitivity to any component of the product.
  • Patients receiving clopidogrel (Plavix®) within the previous 5 days may be enrolled if in the opinion of the Investigator the benefits of surgery outweigh the risk associated with recent clopidogrel administration.
  • Patients receiving a glycoprotein IIb/IIIa inhibitor within the previous 48 hours prior to enrollment if abciximab (ReoPro®) or 12 hours if eptifibatide (Integrilin®) or tirofiban (Aggrastat®), may be enrolled if in the opinion of the Investigator the benefits of surgery outweigh the risk associated with not waiting the 48 or 12 hour time period prior to enrollment.
  • Patients receiving lepirudin (Refludan®) or argatroban within the previous 24 hours prior to enrollment.
  • Patients currently receiving lepirudin or argatroban can be enrolled if they are switched to Angiomax at least 24 hours prior to the planned cardiac surgery.
  • Patients receiving LMWH or thrombolytics within the previous 12 hours may be enrolled if in the opinion of the Investigator the benefits of surgery outweigh the risk associated with not waiting the 12 hour time period.
  • Participation in other clinical research studies involving the evaluation of other investigational drugs or devices within 30 days of enrollment.
  • Refusal to undergo blood transfusion should it become necessary.
  • Any other disease or condition, which, in the judgment of the Investigator, would place a patient at undue risk by being enrolled in the trial, or cause inability to comply with the trial.
  • Planned surgical procedure in which proximal anastomoses will precede distal anastomoses of the bypass grafts.
  • Planned (>1) double (or greater) valve repair-replacement (e.g.: AVR-MVR) surgery.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Cleveland Clinic

    Cleveland, Ohio, 44195

Other trials in United States

About this study

Official title: A Phase III Study of Angiomax (Bivalirudin) in Patients With HIT/HITTS Type II Undergoing Cardiac Surgery on Cardiopulmonary Bypass (CPB)

The purpose of this study is to demonstrate that in patients with heparin-induced thrombocytopenia (HIT)/heparin-induced thrombocytopenia and thrombosis syndrome (HITTS) Type II undergoing cardiac surgery on cardiopulmonary bypass (CPB), Angiomax is a safe and effective anticoagulant.

Read the detailed description

An open-label, prospective, multicenter, single-arm study; with a historical reference cohort of similarly identified HIT/HITTS patients from participating institutions that underwent cardiac surgery on CPB with alternative anticoagulation regimens during the period of approximately 12 months prior to initiation of the first patient into this study.

Being tested
Angiomax (bivalirudin)
Keywords
Heparin-induced Thrombocytopenia, Heparin-induced Thrombocytopenia/Thrombosis Syndrome, HIT/HITTS, Heparin anti-body positive
Medical subject headings
Cardiovascular Diseases

What participants receive

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

  • Angiomax (bivalirudin)Drug

    250 mg vial administered as 1.0 mg/kg intravenous (IV) bolus and 2.5 mg/kg/h IV infusion during the procedure with the option to administer additional 0.1 to 0.5 mg/kg boluses to increase the level of anticoagulation as clinically indicated. A low-dose infusion could have been administered in the preoperative phase (up to 48 hours before the procedure) and in the postoperative phase (up to 14 days after the procedure) as clinically indicated for management of HIT/TS. A starting bolus of 0.1 mg/kg and/or an infusion of 0.2 mg/kg/h titrated to a desired activated partial thromboplastin time (aPTT), eg, 1.5-2.5 times baseline aPTT, was recommended.

What is being measured

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

  1. Primary Endpoint

    In-hospital acute procedural success, defined as the absence of death, Q wave MI, repeat coronary revascularization, and stroke (hemorrhagic or ischemic) at hospital discharge or Day 7 after surgery ('Day 7/discharge'), whichever occurs first.

    Measured: 7 days

Timeline

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

  1. First posted11 Mar 2004 (estimated)
  2. Study startApr 2004
  3. Primary completionOct 2005

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 3
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
125 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00079508
Sponsor's protocol ID
TMC-BIV-02-03
Other IDs
CHOOSE-On
Acronym
HIT/TS
Status last verified
Nov 2011
First submitted
9 Mar 2004
Last updated
10 Nov 2011
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Angiomax (bivalirudin) in people with Cardiovascular Disease and Coronary Artery Bypass Surgery, run by The Medicines Company at 1 site 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 7 inclusion and 17 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 10 Nov 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Primary Endpoint (time frame: 7 days). 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 10 Nov 2011.

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