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TerminatedNCT00445211HEROICUpdated May 19, 2017Results posted

HEROIC (Heparin Requirement in Counterpulsation)

A Phase 2 interventional study of Heparin and Without Heparin in Cardiogenic Shock, sponsored by William Beaumont Hospitals. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-05-19.

Sponsored by William Beaumont Hospitals · Phase 2, Interventional, and Treatment

Why this study was terminated
lack of enrollment
Phase
Phase 2
Study type
Interventional
Enrollment
46
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Patients with intra-aortic balloon pumps (catheters placed in the groin connected to a pump which assists the heart by opening and closing a balloon in the aorta, thereby decreasing the work of the heart and improving blood flow to the coronary arteries) often receive intravenous (IV) heparin (a "blood thinner") to prevent circulation problems in the leg (where they are inserted). When intra-aortic balloon pumps were initially developed, the catheters were larger than the catheters used today. Due to the large size of the catheter and the material used to make the catheter, it was thought that intravenous heparin would prevent poor blood flow to the leg that contained the temporary catheter. Intravenous heparin, however, has never been proven to maintain good blood flow in these patients. The catheters used with intra-aortic balloon pumps are now smaller in size and made of a material that is less likely to produce blood clots. It is not clear that heparin is needed with intra-aortic balloon pumps. Bleeding complications associated with intra-aortic balloon pumps may be decreased if heparin is not used. In 2004, 99 patients received intra-aortic balloon pumps in the cardiac catheterization labs at William Beaumont Hospital. These patients received intravenous heparin and experienced a large number of bleeding complications (27 patients required a blood transfusion). This study will help the investigators to clarify if heparin should or should not be routinely used in patients with intra-aortic balloon pumps.

Read the detailed description

Potential patients will be identified in the cardiac catheterization lab when an intra-aortic balloon pump is placed. Patients who agree to participate in this study will be randomized (they will be selected to receive heparin or not to receive heparin with their intra-aortic balloon pump) by a process that is similar to flipping a coin. Patients will have a 50% chance of receiving heparin and a 50% chance of not receiving heparin. If a patient does not want to participate in the study, his/her cardiologist will decide if the patient will receive or not receive heparin. Intra-aortic balloon pumps have been used with and without intravenous heparin and there is no known increase in complications in patients who do not receive heparin. Risks include bleeding and possible blood clots/decreased blood flow to the leg with the catheter in both groups (due to different medical reasons). The patients in both groups will be monitored closely in the cardiac care unit while the intra-aortic balloon pump is in place to prevent and/or minimize complications.

02

Conditions studied

  • Cardiogenic Shock

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Keywords

  • Intraaortic balloon pumping
  • Heparin
  • Limb ischemia
  • Bleeding
03

In context

Shock, Cardiogenic

277 studies on the registry are indexed under Shock, Cardiogenic; 127 are open to participants now.

This study's enrollment of 46 is below the median of 80 across 127 interventional studies indexed under Shock, Cardiogenic.

Browse Shock, Cardiogenic studies →

Lead sponsor

William Beaumont Hospitals is the lead sponsor of 111 studies on the registry; none are open to participants now.

Of its 30 completed or terminated interventional studies of FDA-regulated products, 30 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age >/= 18 years
  • Able to provide consent
  • Insertion of Intra-aortic Balloon Pump (IABP) in William Beaumont Hospital (WBH) cath lab
  • Anticipated duration of IABP >/= 18 hours

Exclusion criteria

Exclusion Criteria:

  • Contraindications to heparin
  • Pre-existing condition requiring heparin administration (other than IABP)
  • IABP placed outside of the WBH cardiac catheterization lab prophylactically for high-risk percutaneous coronary intervention (PCI), without complications)
  • Pregnant women
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
46 participants (actual)

Study arms

  • Active comparator
    Intra-Aortic balloon Pump with Heparin

    Intra-Aortic Balloon Pump (IABP) with Heparin

    Drug: Heparin

  • Active comparator
    Intra-Aortic balloon Pump without Heparin

    Intra-Aortic balloon Pump (IABP) without Heparin

    Other: Without Heparin

Interventions

  • DrugHeparin

    Heparin administered at 500units/hour while on Intra-Aortic balloon Pump (IABP).

  • OtherWithout Heparin

    Intra-Aortic balloon Pump (IABP) without Heparin.

06

What researchers measure

Primary outcomes

  1. Minor Ischemia (Decreased Blood Flow) During the Index Hospitalization

    Count of participants with decreased arterial flow in lower extremity as presented by diminished pulse that resolves with balloon removal, and not resulting in any impairment of body function

    Time frame: 0-4 days post surgery

  2. Major Ischemia (Decreased Blood Flow) During the Index Hospitalization

    Count of participants with loss of Doppler signal or sensation or abnormal skin temperature, mottling or pallor in lower extremity requiring surgical intervention; or other major ischemic events including ischemic stroke; recurrent unstable ischemia (unstable angina, recurrent chest pain prompting definitive treatment such as re-percutaneous transluminal coronary angiography (PTCA), coronary artery bypass grafting (CABG), administration of thrombolytics); reinfarction including clinical symptoms or new ECG changes with creatine kinase (CK) elevation and positive creatine kinase-MB isoenzyme fraction; arterial thrombosis, embolus, dissection, or perforation; compartment syndrome; renal ischemia including new renal failure or need for dialysis; small bowel or splenic infarction; mesenteric or hepatic ischemia, or deep vein thrombosis.

    Time frame: 0-4 days post surgery

  3. Major Bleeding During the Index Hospitalization

    Count of participants with hemorrhage associated with at least one of the following features as defined by the Thrombolysis in Myocardial Infarction (TIMI) Study Group criteria: Bleeding that results in a decrease in hemoglobin \>/= 5g.dL or a hematocrit decrease of \>/= 15% of baseline value; bleeding that is intracranial (confirmed by MRI or CT); bleeding that results in death.

    Time frame: 0-4 days post surgery

Secondary outcomes

  1. Intra-aortic Balloon Pump-related Death During the Index Hospitalization

    Time frame: 0-4 days post surgery

  2. Hospital Death During the Index Hospitalization

    Time frame: 0-4 post surgery

07

Results

Posted May 19, 2017
Limitations and caveats
Early termination leading to small number of subjects analyzed.

Participant flow

Participant flow — Overall Study
MilestoneIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Started2323
Completed2323
Not completed00

Outcome measures

PrimaryMinor Ischemia (Decreased Blood Flow) During the Index Hospitalization

Count of participants with decreased arterial flow in lower extremity as presented by diminished pulse that resolves with balloon removal, and not resulting in any impairment of body function

Time frame:
0-4 days post surgery
Reported as:
Count of participants · Participants
Minor Ischemia (Decreased Blood Flow) During the Index Hospitalization
ParticipantsIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Minor Ischemia (Decreased Blood Flow) During the Index Hospitalization00
PrimaryMajor Ischemia (Decreased Blood Flow) During the Index Hospitalization

Count of participants with loss of Doppler signal or sensation or abnormal skin temperature, mottling or pallor in lower extremity requiring surgical intervention; or other major ischemic events including ischemic stroke; recurrent unstable ischemia (unstable angina, recurrent chest pain prompting definitive treatment such as re-percutaneous transluminal coronary angiography (PTCA), coronary artery bypass grafting (CABG), administration of thrombolytics); reinfarction including clinical symptoms or new ECG changes with creatine kinase (CK) elevation and positive creatine kinase-MB isoenzyme fraction; arterial thrombosis, embolus, dissection, or perforation; compartment syndrome; renal ischemia including new renal failure or need for dialysis; small bowel or splenic infarction; mesenteric or hepatic ischemia, or deep vein thrombosis.

Time frame:
0-4 days post surgery
Reported as:
Count of participants · Participants
Major Ischemia (Decreased Blood Flow) During the Index Hospitalization
ParticipantsIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Major Ischemia (Decreased Blood Flow) During the Index Hospitalization00
PrimaryMajor Bleeding During the Index Hospitalization

Count of participants with hemorrhage associated with at least one of the following features as defined by the Thrombolysis in Myocardial Infarction (TIMI) Study Group criteria: Bleeding that results in a decrease in hemoglobin \>/= 5g.dL or a hematocrit decrease of \>/= 15% of baseline value; bleeding that is intracranial (confirmed by MRI or CT); bleeding that results in death.

Time frame:
0-4 days post surgery
Reported as:
Count of participants · Participants
Major Bleeding During the Index Hospitalization
ParticipantsIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Major Bleeding During the Index Hospitalization00
SecondaryIntra-aortic Balloon Pump-related Death During the Index Hospitalization
Time frame:
0-4 days post surgery
Reported as:
Count of participants · Participants
Intra-aortic Balloon Pump-related Death During the Index Hospitalization
ParticipantsIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Intra-aortic Balloon Pump-related Death During the Index Hospitalization00
SecondaryHospital Death During the Index Hospitalization
Time frame:
0-4 post surgery
Reported as:
Count of participants · Participants
Hospital Death During the Index Hospitalization
ParticipantsIntra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without Heparin
Hospital Death During the Index Hospitalization00

Adverse events

Collected over Time IntraAortic Balloon Pump (IABP) was inserted in the catheterization laboratory to length of stay in hospital.. 0-4 days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Intra-Aortic Balloon Pump With Heparin0/23 (0%)0/23 (0%)0/23 (0%)
Intra-Aortic Balloon Pump Without Heparin0/23 (0%)0/23 (0%)0/23 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Intra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without HeparinTotal
<=18 years000
Between 18 and 65 years134
>=65 years7613
Sex: Female, Male
Sex: Female, Male(Participants)Intra-Aortic Balloon Pump With HeparinIntra-Aortic Balloon Pump Without HeparinTotal
Female145
Male7512
08

Study locations

1 site
  • William Beaumont Hospital
    Royal Oak, Michigan 48073, United States
09

References and documents

Publications

  • Baim DS, Grossman W. Grossman's Cardiac Catheterization, Angiography and Intervention (6th Ed). Lippincott Williams & Williams, Philadelphia, Pennsylvania, 2000, 463.
  • MOULOPOULOS SD, TOPAZ S, KOLFF WJ. Diastolic balloon pumping (with carbon dioxide) in the aorta--a mechanical assistance to the failing circulation. Am Heart J. 1962 May;63:669-75. doi: 10.1016/0002-8703(62)90012-1. No abstract available. PubMed 14476645 ↗
  • Kantrowitz A. Origins of intraaortic balloon pumping. Ann Thorac Surg. 1990 Oct;50(4):672-4. doi: 10.1016/0003-4975(90)90220-z. PubMed 2222066 ↗
  • Stone GW, Ohman EM, Miller MF, Joseph DL, Christenson JT, Cohen M, Urban PM, Reddy RC, Freedman RJ, Staman KL, Ferguson JJ 3rd. Contemporary utilization and outcomes of intra-aortic balloon counterpulsation in acute myocardial infarction: the benchmark registry. J Am Coll Cardiol. 2003 Jun 4;41(11):1940-5. doi: 10.1016/s0735-1097(03)00400-5. PubMed 12798561 ↗
  • Cohen M, Dawson MS, Kopistansky C, McBride R. Sex and other predictors of intra-aortic balloon counterpulsation-related complications: prospective study of 1119 consecutive patients. Am Heart J. 2000 Feb;139(2 Pt 1):282-7. doi: 10.1067/mhj.2000.101489. PubMed 10650301 ↗
  • Alle KM, White GH, Harris JP, May J, Baird D. Iatrogenic vascular trauma associated with intra-aortic balloon pumping: identification of risk factors. Am Surg. 1993 Dec;59(12):813-7. PubMed 8256934 ↗
  • Walls JT, Boley TM, Curtis JJ, Silver D. Heparin induced thrombocytopenia in patients undergoing intra-aortic balloon pumping after open heart surgery. ASAIO J. 1992 Jul-Sep;38(3):M574-6. doi: 10.1097/00002480-199207000-00100. PubMed 1457924 ↗
  • Ficek SJ, Stammers A, Deligonul U, Shurmur SW, Alonso A, Galbraith T. Hemostatic assessment of patients undergoing intraaortic balloon pump therapy. J Extra Corpor Technol. 1997 Jun;29(2):78-82. PubMed 10168534 ↗
  • Busch T, Sirbu H, Zenker D, Dalichau H. Vascular complications related to intraaortic balloon counterpulsation: an analysis of ten years experience. Thorac Cardiovasc Surg. 1997 Apr;45(2):55-9. doi: 10.1055/s-2007-1013687. PubMed 9175219 ↗
  • Todd GJ, Bregman D, Voorhees AB, Reemtsma K. Vascular complications associated with percutaneous intra-aortic balloon pumping. Arch Surg. 1983 Aug;118(8):963-4. doi: 10.1001/archsurg.1983.01390080065016. PubMed 6870526 ↗
  • Jiang CY, Zhao LL, Wang JA, Mohammod B. Anticoagulation therapy in intra-aortic balloon counterpulsation: does IABP really need anti-coagulation? J Zhejiang Univ Sci. 2003 Sep-Oct;4(5):607-11. doi: 10.1631/jzus.2003.0607. PubMed 12958723 ↗
  • Sato K, Tokairin H, Kato M. [Two patients treated with intra-aortic balloon pump counterpulsation after subarachnoid hemorrhage]. Masui. 2001 Aug;50(8):859-62. Japanese. PubMed 11554017 ↗
  • Vonderheide RH, Thadhani R, Kuter DJ. Association of thrombocytopenia with the use of intra-aortic balloon pumps. Am J Med. 1998 Jul;105(1):27-32. doi: 10.1016/s0002-9343(98)00128-4. PubMed 9688018 ↗
  • Schreiber TL, Kodali UR, O'Neill WW, Gangadharan V, Puchrowicz-Ochocki SB, Grines CL. Comparison of acute results of prophylactic intraaortic balloon pumping with cardiopulmonary support for percutaneous transluminal coronary angioplasty (PCTA). Cathet Cardiovasc Diagn. 1998 Oct;45(2):115-9. doi: 10.1002/(sici)1097-0304(199810)45:23.0.co;2-f. PubMed 9786386 ↗

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 19, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00445211
Lead sponsor
William Beaumont Hospitals
Responsible party
Justin Trivax (MD Cardiologist, William Beaumont Hospitals) — Principal investigator
First posted
Mar 8, 2007
Start date
Jan 2006
Primary completion
Mar 2008
Completion
Mar 2008
Results posted
May 19, 2017
Last update
May 19, 2017

Study contacts

Justin Trivax, M.D.
principal investigator · William Beaumont Hospitals

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.

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