ACUITY: The Acute Catheterization and Urgent Intervention
Triage StrategY Trial: The PCI Subanalysis
- ACUITY is the largest clinical trial to evaluate Angiomax®
(bivalirudin) in patients with moderate- and high-risk Unstable angina/non-ST-segment
elevation myocardial infarction (UA/NSTEMI) undergoing an early invasive strategy
(N=13,819) 1
- At baseline 76% of the percutaneous coronary intervention (PCI) patient population
had elevated cardiac biomarkers or ST-segment deviation2
- 27% of the PCI population had a history of diabetes
- Results in PCI patients were consistent with Randomized Evaluation of PCI
Linking ANGIOMAX to Reduced Clinical Events (REPLACE-2) and overall ACUITY trial
results2*
- ANGIOMAX alone (n=2,619) demonstrated similar ischemic efficacy versus heparin(s)
+ glycoprotein (GP) IIb/IIIa (n= 2,561) (8.8% vs. 8.2%, respectively; P = .45)
- Net clinical outcome with ANGIOMAX vs heparin(s) + GP IIb/IIIa was 11.6% vs.
13.3%, respectively (P = .057)
- Major bleeding¶ with ANGIOMAX vs heparin(s) + GP IIb/IIIa
was 3.5% vs 6.8%, respectively (P < .001)2
- Results in the ANGIOMAX + GP IIb/IIIa inhibitor arm (n=2,609) vs heparin(s)
+ GP IIb/IIIa inhibitor were similar for net clinical outcome, composite ischemia,
and major bleed2†
- At 1 year, mortality rates in the 2 treatment groups in the ACUITY PCI subset
were comparable (3.1% for ANGIOMAX alone; 3.2% for heparin(s) + GP IIb/IIIa inhibitor;
P = .76), which demonstrated consistent long-term efficacy of ANGIOMAX treatment.2,3
* The safety and effectiveness of ANGIOMAX have not been established in patients
with acute coronary syndromes (ACS) who are not undergoing PCI.4
† Major bleed:1 Defined in ACUITY as non-CABG
intracranial, retroperitoneal, or intraocular bleeding; access-site hemorrhage requiring
intervention; ≥5 cm diameter hematoma; reduction in hemoglobin concentration
of ≥4 g/dL without an overt source of bleeding; reduction in hemoglobin concentration
of ≥3 g/dL with an overt source of bleeding; reoperation for bleeding; use of
any blood product transfusion.
¶ Please see important safety information and
bleeding definitions.
Results in UA/NSTEMI patients undergoing PCI in ACUITY are consistent with REPLACE-2
findings
- Demonstrated in ACUITY, the largest clinical trial to evaluate ANGIOMAX in patients
with moderate- and high-risk ACS undergoing an early invasive strategy (N=13,819)1
- 76% of the PCI patient population had elevated cardiac biomarkers or ST-segment
deviation2
- Results in PCI patients were consistent with overall trial results2*
CABG=coronary artery bypass grafting.
* The safety and effectiveness of ANGIOMAX have not been established in patients
with ACS who are not undergoing PCI.4
† Stratified by preangiography thienopyridines use or administration.
‡ unfractionated heparin (UFH) or enoxaparin.
§ ANGIOMAX monotherapy (with GP IIb/IIIa inhibition reserved for severe
breakthrough ischemia and procedural complications during PCI).
Inclusion Criteria1,5
- Age ≥18 years
- Chest pain ≥10 min within 24 h
- At least one of:
- New ST-segment depression or transient elevation ≥1 mm
- troponin I, T, or CKMB
- Documented coronary artery disease
- Presence of all 4 UA risk criteria
- Age ≥65 years
- Aspirin within the last 7 days
- ≥2 angina episodes within 24 h
- ≥3 cardiac risk factors: hypertension, hypercholesterolemia, family history
of coronary artery disease, diabetes, smoking
- Written informed consent
Major Exclusion Criteria1,5
- No angiography within 72 h
- Acute ST-segment elevation myocardial infarction (STEMI) or shock
- Bleeding diathesis or major bleed within 2 weeks
- Platelet count <100,000/mm3
- INR >1.5 times control
- CrCl <30 mL/min
- Abciximab or ≥2 prior LMWH doses
- Prior UFH, LMWH (1 dose), eptifibatide and tirofiban were allowed
- Allergy to study drugs, contrast dye
CKMB = creatine kinase-MB; CrCl = creatinine clearance; INR = international normalized
ratio; LMWH = low-molecular-weight heparin; STEMI = ST-segment elevation myocardial
infarction; UFH = unfractionated heparin.
Clinical End Points
- Net clinical outcome
- Death, myocardial infarction (MI), unplanned revascularization for ischemia
or non-CABG major bleeding
- Composite ischemia
- Death, MI, or unplanned revascularization for ischemia
- Non-coronary artery bypass grafting (Non-CABG) major bleeding
- Intracranial, intraocular, or retroperitoneal bleeding
- Access site bleed requiring intervention/surgery
- Hematoma ≥5 cm
- Hemoglobin (Hgb)
≥4 g/dL without an
overt source
- Hgb
≥3 g/dL with an overt
source
- Reoperation for bleeding
- Any blood transfusions
Baseline Characteristics in PCI Subpopulation2
|
|
Heparin(s) +
GP IIb/IIIa
(n = 2,561)
|
|
ANGIOMAX
alone
(n = 2,619)
|
|
Age (median [range], y) |
72.6%
|
|
73.3%
|
|
Male |
63 [25-91]
|
|
63 [30-92]
|
|
Weight (median [IQR], kg) |
84 [73-96]
|
|
84 [75-95]
|
|
Diabetes |
27.5%
|
|
27.5%
|
|
- Insulin requiring |
8%
|
|
9%
|
|
Hypertension |
66%
|
|
66%
|
|
Hyperlipidemia |
56%
|
|
56%
|
|
Current smoker |
31%
|
|
31%
|
|
Prior MI |
29.7%
|
|
30.5%
|
|
Prior PCI |
38.2%
|
|
40%
|
|
Prior CABG |
17.3%
|
|
17.9%
|
|
Renal insufficiency (CRCI <60 mL/min) |
19.0%
|
|
17.8%
|
P= Not significant for all values.
Baseline High-Risk Features2
|
|
Heparin(s) +
GP IIb/IIIa
(n = 2,561)
|
|
ANGIOMAX
alone
(n = 2,619)
|
Cardiac biomaker
(MB or troponin) |
65.1%
|
|
66.4%
|
- Troponin
 |
64.8%
|
|
66.2%
|
|
ST-segment ≥1 mm |
35.4%
|
|
35.3%
|
Cardiac biomaker
or ST-segment |
76.8%
|
|
77.0%
|
30-day results for ACUITY PCI subset1,2,6
Heparin(s) = UFH or enoxaparin
† Important Bleeding Definitions
¶ IN THE ACUITY ANGIOMAX-ALONE GROUP: 91% of PCI patients received
ANGIOMAX monotherapy.1
- Results in the ANGIOMAX + GP llb/llla arm (n = 2,609) vs heparin(s) + GP IIb/IIIa2
—Net clinical outcome was 14.9% vs 13.3% (P = .10)
—Composite ischemia was 9.3% vs 8.2% (P = .16)
—Major bleed was 7.5% vs 6.8% (P = .32)
ACUITY PCI subset mortality results at 1 year confirm long-term efficacy3
¶ In the ACUITY ANGIOMAX-ALONE GROUP: 91% of PCI patients received
ANGIOMAX monotherapy.2
§ Mortality rates based on 1-year Kaplan-Meier estimates.3
Safety Considerations
ANGIOMAX with provisional use of glycoprotein IIb/IIIa inhibitor is indicated for
use as an anticoagulant in patients undergoing percutaneous coronary intervention
(PCI), and in patients with or at risk for heparin-induced thrombocytopenia and
thrombosis syndrome (HIT/HITTS) undergoing PCI. ANGIOMAX is intended for use with
aspirin and has been studied only in patients receiving concomitant aspirin. ANGIOMAX
is contraindicated in patients with active major bleeding or hypersensitivity to
ANGIOMAX or its components. The most common (≥10%) adverse events for ANGIOMAX were back pain, pain, nausea, headache,
and hypotension. An unexplained fall in blood pressure or hematocrit, or any unexplained
symptom, should lead to serious consideration of a hemorrhagic event and cessation
of ANGIOMAX administration. Please see complete prescribing information.
1Stone GW, White HD, Ohman EM, et al; for the ACUITY Investigators. Bivalirudin
for patients with acute coronary syndromes. N Engl J Med . 2006;355:2203-2216.
2Stone GW, White HD, Ohman EM, et al; for the Acute Catheterization and
Urgent Intervention Triage strategy (ACUITY) trial investigators. Bivalirudin in
patients with acute coronary syndromes undergoing percutaneous coronary intervention:
a subgroup analysis from the Acute Catheterization and Urgent Intervention Triage
strategy (ACUITY) trial. Lancet. 2007;369:907-919.
3White HD, Chew DP, Hoekstra JW, et al. Safety and efficacy of switching
from either unfractionated heparin or enoxaparin to bivalirudin in patients with
non–ST-elevation acute coronary syndromes managed with an invasive strategy: results
from the ACUITY trial. J Am Coll Cardiol. 2008;51:1734-1741.
4ANGIOMAX Prescribing Information. The Medicines Company; Parsippany,
NJ, December 6, 2005.
5Stone GW, Bertrand M, Colombo A, et al. Acute Catheterization and Urgent
Intervention Triage strategY (ACUITY) trial: study design and rationale. Am Heart
J. 2004;148:764-775.
6Supplement to: Stone GW, McLaurin BT, Cox DA, et al; for the ACUITY
Investigators. Bivalirudin for patients with acute coronary syndromes. N Engl J
Med. 2006;355:2203-2216. Available at: http://content.nejm.org. Accessed December
6, 2006.