Activase Alteplase Kit — NDC 50242-044-13 (Billing 50242-0044-13)
This is a package of Activase Alteplase Kit from Genentech, Inc., marketed since Nov 1987 and currently FDA-listed. It is this product's only package size.
NDC database record
One package, one record: these facts belong to NDC 50242-044-13 alone.
- Record
- FDA NDC Directory package listing · Human prescription drug
- Code segments
- 50242 labeler · 044 product · 13 package
- Package marketed since
- Nov 13, 1987
- Sample package
- No — commercial package
- Listing certified through
- Dec 31, 2027
- Barcode (UPC-A, from the NDC)
- 3 5024204413 4
- Medicaid fills, this package
- 234 prescriptions in the last four reported quarters
- FDA record last changed
- Jul 24, 2026
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 006508
- GCN: 47140
- GPI-14 (Medi-Span): 85601010002110
- HICL (First Databank): 002803
- AHFS class code: 20:12.20.00
- RxCUI (RxNorm): 1804799
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 8, 2026
- FDA label on DailyMed · label index refreshed Oct 8, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 8, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 8, 2026
RxNorm drug class
This medicine belongs to the Enzymes class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 8, 2026
Clinical
Alteplase is used to dissolve blood clots that have formed in blood vessels. It is used to reduce the risk of death or heart problems in people having a heart attack and to treat patients with symptoms of a stroke or a clot in the lung(s). Alteplase is in a class of medications called thrombolytics. It works by helping the body to dissolve blood clots.
Read the full MedlinePlus article ↗Patient education
Supplement & herbal interactions
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 8, 2026
- FDA label on DailyMed · label index refreshed Oct 8, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $4,983.11 | — |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
| Medicare Part B allowsASP · J2997 | $98.587 / J2997 unit | — |
Where does this data come from?
- CMS NADAC weekly file
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Billing & reimbursement
Where does this data come from?
- CMS ASP NDC-HCPCS crosswalk · refreshed Sep 22, 2026
- DMEPDAC NDC-HCPCS crosswalk
- openFDA NSDE billing units · refreshed Oct 7, 2026
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 50242-0044-13 You're viewing this Main listing | 1 KIT in 1 CARTON * 50 mL in 1 VIAL, SINGLE-USE * 50 mL in 1 VIAL, SINGLE-USE | 1987-11-13 | — | Active |
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Activasethis 50242-0044-13 | Genentech, | 1 kit | — | — | FDA listed | — |
| Activase 50242-0085-27 | Genentech, | 1 kit | — | — | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 8, 2026
- FDA Purple Book · refreshed Oct 5, 2026
- CMS NADAC weekly file
Availability & biosimilar status
Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.
Where does this data come from?
- FDA Purple Book · refreshed Oct 5, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
Where does this data come from?
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.- FDA label on DailyMed · label index refreshed Oct 8, 2026
- FDA openFDA NDC Directory · synced Oct 8, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
More NDCs from Genentech, Inc. labeler code 50242
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- Cathflo Activase Alteplase 2.2 mg/2mL Injection, Powder, Lyophilized, For Solution NDC 50242-041-10
- Rituxan rituximab 10 mg/mL Injection, Solution NDC 50242-051-10
- rituximab 10 g/L Liquid NDC 50242-052-01
- Rituxan rituximab 10 mg/mL Injection, Solution NDC 50242-053-06
- bevacizumab 25 g/L Liquid NDC 50242-059-01
- Avastin bevacizumab 100 mg/4mL Injection, Solution NDC 50242-060-01
- Avastin bevacizumab 400 mg/16mL Injection, Solution NDC 50242-061-01
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 8, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Activase is a tissue plasminogen activator (tPA) indicated for the treatment of: Acute Ischemic Stroke (AIS). ( 1.1 ) Acute Myocardial Infarction (AMI) to reduce mortality and incidence of heart failure. ( 1.2 ) Limitation of Use in AMI: the risk of stroke may be greater than the benefit in patients at low risk of death from cardiac causes. ( 1.2 ) Acute Massive Pulmonary Embolism (PE) for lysis. ( 1.3 )
1.1Acute Ischemic Stroke Activase is indicated for the treatment of acute ischemic stroke. Exclude intracranial hemorrhage as the primary cause of stroke signs and symptoms prior to initiation of treatment [see Contraindications (4.1) ] . Initiate treatment as soon as possible but within 3 hours after symptom onset.
1.2Acute Myocardial Infarction Activase is indicated for use in acute myocardial infarction (AMI) for the reduction of mortality and reduction of the incidence of heart failure. Limitation of Use: The risk of stroke may outweigh the benefit produced by thrombolytic therapy in patients whose AMI puts them at low risk for death or heart failure.
1.3Pulmonary Embolism Activase is indicated for the lysis of acute massive pulmonary embolism, defined as: Acute pulmonary emboli obstructing blood flow to a lobe or multiple lung segments. Acute pulmonary emboli accompanied by unstable hemodynamics, e.g., failure to maintain blood pressure without supportive measures.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Acute Ischemic Stroke : The recommended dose is 0.9 mg/kg (not to exceed 90 mg total dose) infused intravenously over 60 minutes with 10% of the total dose administered as an initial bolus over 1 minute. ( 2.1 ) Acute Myocardial Infarction : The recommended total dose is based on patient weight, not to exceed 100 mg. ( 2.2 ) Acute Massive Pulmonary Embolism : The recommended dose is 100 mg administered by IV infusion over 2 hours.
( 2.3 ) Do not add other medications to infusions containing Activase. ( 2.5 )
2.1Acute Ischemic Stroke Administer Activase as soon as possible but within 3 hours after onset of symptoms. The recommended dose is 0.9 mg/kg (not to exceed 90 mg total dose), with 10% of the total dose administered as an initial intravenous bolus over 1 minute and the remainder infused over 60 minutes. During and following Activase administration for the treatment of acute ischemic stroke, frequently monitor and control blood pressure.
In patients without recent use of oral anticoagulants or heparin, Activase treatment can be initiated prior to the availability of coagulation study results. Discontinue Activase if the pretreatment International Normalized Ratio (INR) is greater than 1.7 or the activated partial thromboplastin time (aPTT) is elevated [see Contraindications (4.1) ] .
2.2Acute Myocardial Infarction Administer Activase as soon as possible after the onset of symptoms. The recommended total doses for acute myocardial infarction (AMI) is based on patient weight, not to exceed 100 mg, regardless of the selected administration regimen (accelerated or 3 hour, described below). There are two Activase dose regimens (accelerated and 3-hour) for use in the management of AMI; there are no controlled studies to compare clinical outcomes with these regimens [see Clinical Studies (14.2) ].
Accelerated Infusion The recommended accelerated infusion dose consists of an IV bolus [see Dosage and Administration (2.4 , 2.5) ] followed by an IV infusion as set forth in Table 1 . Table 1 Accelerated Infusion Weight-Based Doses for Patients with AMI Patient weight Intravenous Bolus First 30 min Next 60 min > 67 kg 15 mg 50 mg 35 mg ≤ 67 kg 15 mg 0.75 mg/kg 0.50 mg/kg The safety and efficacy of accelerated infusion of Activase have only been investigated with concomitant administration of heparin and aspirin [see Clinical Studies (14.2) ] .
3-Hour Infusion For patients weighing ≥ 65 kg, the recommended dose is 100 mg administered as 60 mg in the first hour (6-10 mg administered as a bolus), 20 mg over the second hour, and 20 mg over the third hour. For smaller patients (< 65 kg), a dose of 1.25 mg/kg administered over 3 hours may be used. Weight-based doses are shown in Table 2 .
Table 2 3-hour Infusion Weight-Based Doses for Patients with AMI Patient weight Bolus Rest of 1st hour 2nd hour 3rd hour ≥ 65 kg 6-10 mg 50-54 mg 20 mg 20 mg < 65 kg 0.075 mg/kg 0.675 mg/kg 0.25 mg/kg 0.25 mg/kg
2.3Pulmonary Embolism (PE) The recommended dose is 100 mg administered by IV infusion over 2 hours. Institute parenteral anticoagulation near the end of or immediately following the Activase infusion when the partial thromboplastin time or thrombin time returns to twice normal or less.
2.4Activase 50 mg Reconstitution and Administration Instructions Activase is for intravenous administration only. Do not add any other medication to infusion solutions containing Activase. Extravasation of Activase infusion can cause ecchymosis or inflammation.
If extravasation occurs, terminate the infusion at that intravenous site and apply local therapy. Use within 8 hours following reconstitution (when stored at 2–30°C). Activase contains no antibacterial preservatives.
Activase 50 mg Reconstitution Notes Use only the accompanying Sterile Water for Injection (SWFI), USP without preservatives. Do not use Bacteriostatic Water for Injection, USP. Reconstitute using aseptic technique.
Slight foaming is not unusual; let stand undisturbed… [Excerpted — this section continues on DailyMed.]
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS 50 mg lyophilized powder in single-dose vial with 50 mL SWFI USP for reconstitution 100 mg lyophilized powder in single-dose vial with 100 mL SWFI USP for reconstitution 50 mg and 100 mg lyophilized powder in single-dose vials with Sterile Water for Injection USP for reconstitution. ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS General Active internal bleeding. ( 4.1 , 4.2 ) Recent intracranial or intraspinal surgery or serious head trauma. ( 4.1 , 4.2 ) Intracranial conditions that may increase the risk of bleeding.
( 4.1 , 4.2 ) Bleeding diathesis. ( 4.1 , 4.2 ) Current severe uncontrolled hypertension. ( 4.1 , 4.2 ) Acute Ischemic Stroke Current intracranial hemorrhage.
( 4.1 ) Subarachnoid hemorrhage. ( 4.1 ) Acute Myocardial Infarction or Pulmonary Embolism History of recent stroke. ( 4.2 )
4.1Acute Ischemic Stroke Do not administer Activase to treat acute ischemic stroke in the following situations in which the risk of bleeding is greater than the potential benefit [see Warnings and Precautions (5.1) ] : Current intracranial hemorrhage Subarachnoid hemorrhage Active internal bleeding Recent (within 3 months) intracranial or intraspinal surgery or serious head trauma Presence of intracranial conditions that may increase the risk of bleeding (e.g., some neoplasms, arteriovenous malformations, or aneurysms) Bleeding diathesis Current severe uncontrolled hypertension.
4.2Acute Myocardial Infarction or Pulmonary Embolism Do not administer Activase for treatment of AMI or PE in the following situations in which the risk of bleeding is greater than the potential benefit [see Warnings and Precautions (5.1) ]: Active internal bleeding History of recent stroke Recent (within 3 months) intracranial or intraspinal surgery or serious head trauma Presence of intracranial conditions that may increase the risk of bleeding (e.g. some neoplasms, arteriovenous malformations, or aneurysms) Bleeding diathesis Current severe uncontrolled hypertension.
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Increases the risk of bleeding. Avoid intramuscular injections. Monitor for bleeding.
If serious bleeding occurs, discontinue Activase. ( 5.1 ) Monitor patients during and for several hours after infusion for hypersensitivity. If signs of hypersensitivity develop, discontinue Activase.
( 5.2 ) Consider the risk of reembolization from the lysis of underlying deep venous thrombi in patients with pulmonary embolism. ( 5.3 ) Cholesterol embolism has been reported rarely in patients treated with thrombolytic agents. ( 5.4 )
5.1Bleeding Activase can cause significant, sometimes fatal, internal or external bleeding, especially at arterial and venous puncture sites. Avoid intramuscular injections and trauma to the patient while on Activase. Perform venipunctures carefully and only as required.
To minimize bleeding from noncompressible sites, avoid internal jugular and subclavian venous punctures. If an arterial puncture is necessary during Activase infusion, use an upper extremity vessel that is accessible to manual compression, apply pressure for at least 30 minutes, and monitor the puncture site closely. Because of the higher risk of intracranial hemorrhage in patients treated for acute ischemic stroke, limit treatment to facilities that can provide timely access to appropriate evaluation and management of intracranial hemorrhage.
Fatal cases of hemorrhage associated with traumatic intubation in patients administered Activase have been reported. Aspirin and heparin have been administered concomitantly with and following infusions of Activase in the management of acute myocardial infarction and pulmonary embolism, but the concomitant administration of heparin and aspirin with and following infusions of Activase for the treatment of acute ischemic stroke during the first 24 hours after symptom onset has not been investigated. Because heparin, aspirin, or Activase may cause bleeding complications, carefully monitor for bleeding, especially at arterial puncture sites.
Hemorrhage can occur 1 or more days after administration of Activase, while patients are still receiving anticoagulant therapy. If serious bleeding occurs, terminate the Activase infusion and treat appropriately. In the following conditions, the risks of bleeding with Activase therapy for all approved indications are increased and should be weighed against the anticipated benefits: Recent major surgery or procedure, (e.g., coronary artery bypass graft, obstetrical delivery, organ biopsy, previous puncture of noncompressible vessels) Cerebrovascular disease Recent intracranial hemorrhage Recent gastrointestinal or genitourinary bleeding Recent trauma Hypertension: systolic BP above 175 mm Hg or diastolic BP above 110 mm Hg Acute pericarditis Subacute bacterial endocarditis Hemostatic defects including those secondary to severe hepatic or renal disease Significant hepatic dysfunction Pregnancy Diabetic hemorrhagic retinopathy, or other hemorrhagic ophthalmic conditions Septic thrombophlebitis or occluded AV cannula at seriously infected site Advanced age [see Use in Specific Populations (8.5) ] Patients currently receiving anticoagulants (e.g., warfarin sodium) Any other condition in which bleeding constitutes a significant hazard or would be particularly difficult to manage because of its location.
5.2Hypersensitivity Hypersensitivity, including urticarial / anaphylactic reactions, have been reported after administration of Activase (e.g., laryngeal edema, rash and shock). Rare fatal outcome for hypersensitivity was reported. Angioedema has been observed during and up to 2 hours after Activase infusion in patients treated for acute ischemic stroke and acute myocardial infarction.
In many cases, patients received concomitant angiotensin-converting enzyme inhibitors [see Drug Interactions (7) ] . Monitor patients treated with Activase during and for several hours after infusion for hypersensitivity. If signs of hypersensitivity occur, e.g. anaphyl… [Excerpted — this section continues on DailyMed.]
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in the other sections of the label: Bleeding [see Contraindications (4) , Warnings and Precautions (5.1) ] Hypersensitivity [see Warnings and Precautions (5.2) ] Thromboembolism [see Warnings and Precautions (5.3) ] Cholesterol Embolization [see Warnings and Precautions (5.4) ] The most frequently occurring adverse reaction ( > 5%) is bleeding. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Genentech at 1-888-835-2555 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. The most frequent adverse reaction associated with Activase in all approved indications is bleeding. Bleeding Acute Ischemic Stroke (AIS) In clinical studies in patients with AIS (Studies 1 and 2) the incidence of intracranial hemorrhage, especially symptomatic intracranial hemorrhage, was higher in Activase-treated patients than in placebo patients.
A dose-finding study of Activase suggested that doses greater than 0.9 mg/kg may be associated with an increased incidence of intracranial hemorrhage. The incidence of all-cause 90-day mortality, intracranial hemorrhage, and new ischemic stroke following Activase treatment compared to placebo are presented in Table 3 as a combined safety analysis (n=624) for Studies 1 and 2. These data indicate a significant increase in intracranial hemorrhage following Activase treatment, particularly symptomatic intracranial hemorrhage within 36 hours.
There was no increase in the incidences of 90-day mortality or severe disability in Activase-treated patients compared to placebo. Table 3 Combined Safety Outcomes for Studies 1 and 2 Placebo (n= 312) Activase (n=312) p-Value Fisher's Exact Test. All-Cause 90-day Mortality 64 (20.5%) 54 (17.3%)
0.36Total ICH Within trial follow-up period. Symptomatic intracranial hemorrhage was defined as the occurrence of sudden clinical worsening followed by subsequent verification of intracranial hemorrhage on CT scan. Asymptomatic intracranial hemorrhage was defined as intracranial hemorrhage detected on a routine repeat CT scan without preceding clinical worsening.
20 (6.4%) 48 (15.4%) <0.01 Symptomatic 4 (1.3%) 25 (8.0%) <0.01 Asymptomatic 16 (5.1%) 23 (7.4%)
0.32Symptomatic Intracranial Hemorrhage within 36 hours 2 (0.6%) 20 (6.4%) <0.01 New Ischemic Stroke (3-months) 17 (5.4%) 18 (5.8%)
1.00Bleeding events other than intracranial hemorrhage were noted in the studies of AIS and were consistent with the general safety profile of Activase. In Studies 1 and 2, the frequency of bleeding requiring red blood cell transfusions was 6.4% for Activase-treated patients compared to 3.8% for placebo (p = 0.19). Although exploratory analyses of Studies 1 and 2 suggest that severe neurological deficit (National Institutes of Health Stroke Scale [NIHSS > 22]) at presentation was associated with an increased risk of intracranial hemorrhage, efficacy results suggest a reduced but still favorable clinical outcome for these patients.
Acute Myocardial Infarction (AMI) For the 3-hour infusion regimen in the treatment of AMI, the incidence of significant internal bleeding (estimated as > 250 mL blood loss) has been reported in studies in over 800 patients ( Table 4 ). These data do not include patients treated with the Activase accelerated infusion. Table 4 Incidence of Bleeding in 3-Hour Infusion in AMI Patients Total Dose ≤100 mg Gastrointestinal 5% Genitourinary 4% Ecchymosis 1% Retroperitoneal <1% Epistaxis <1% Gingival <1% The incidence of intracranial hemorrhage in AMI patients treated with Activase is presented in Table 5 .
Table 5 Incidence of Intracranial Hemorrhage in AMI Patients Dose Number of Patients Intracranial… [Excerpted — this section continues on DailyMed.]
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS The interaction of Activase with other cardioactive or cerebroactive drugs has not been studied. Anticoagulants and antiplatelet drugs increase the risk of bleeding if administered prior to, during, or after Activase therapy. In the post-marketing setting, there have been reports of angioedema in patients (primarily patients with AIS) receiving concomitant angiotensin-converting enzyme inhibitors. [see Warnings and Precautions (5.2) ].
Anticoagulants and drugs that inhibit platelet function increase the risk of bleeding when administered with Activase therapy. ( 7 ) Concomitant angiotensin-converting enzyme inhibitors may increase the risk of angioedema. ( 7 )
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS
8.1Pregnancy Risk Summary Published studies and case reports on alteplase use in pregnant women are insufficient to inform a drug associated risk of adverse developmental outcomes. Alteplase is embryocidal in rabbits when intravenously administered during organogenesis at the clinical exposure for AMI, but no maternal or fetal toxicity was evident at lower exposure in pregnant rats or rabbits (see Data ) . All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.
The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Maternal Adverse Reactions The most common complication of thrombolytic therapy is bleeding.
Pregnancy may increase this risk [see Warnings and Precautions (5.1) ]. Data Animal Data Alteplase is embryocidal in rabbits when administered intravenously during organogenesis in doses (3 mg/kg) approximately equal to the human exposure (based on AUC) at the dose for AMI. No maternal or fetal toxicity was evident at doses (1 mg/kg) approximately 0.3 times the human exposure.
In pregnant rats, no maternal or fetal toxicity was evident at doses (1 mg/kg) approximately 0.6 times the human dose for AMI (based on body weight) dosed during the period of organogenesis.
8.2Lactation Risk Summary There are no data on the presence of alteplase in human milk, the effects on the breastfed infant, or the effects on milk production.
8.4Pediatric Use Safety and effectiveness of Activase in pediatric patients have not been established.
8.5Geriatric Use Acute Ischemic Stroke In exploratory, multivariate analyses of Studies 1 and 2, age greater than 77 years was one of several interrelated baseline characteristics associated with an increased risk of intracranial hemorrhage. Efficacy results suggest a reduced but still favorable clinical outcome for Activase-treated elderly [see Clinical Studies (14.1) ] . Acute Myocardial Infarction In a large trial of accelerated-infusion Activase that enrolled 41,021 patients with AMI to one of four thrombolytic regimens [see Clinical Studies (14.2) ] , patients over 75 years of age, a predefined subgroup, comprised 12% of enrollment.
In these patients, the incidence of stroke was 4.0% for the Activase accelerated infusion group, 2.8% for streptokinase IV [SK (IV)], and 3.2% for streptokinase SQ [SK (SQ)]. The incidence of combined 30-day mortality or nonfatal stroke was 20.6% for accelerated infusion of Activase, 21.5% for SK (IV), and 22.0% for SK (SQ).
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Published studies and case reports on alteplase use in pregnant women are insufficient to inform a drug associated risk of adverse developmental outcomes. Alteplase is embryocidal in rabbits when intravenously administered during organogenesis at the clinical exposure for AMI, but no maternal or fetal toxicity was evident at lower exposure in pregnant rats or rabbits (see Data ) . All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.
The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Maternal Adverse Reactions The most common complication of thrombolytic therapy is bleeding.
Pregnancy may increase this risk [see Warnings and Precautions (5.1) ]. Data Animal Data Alteplase is embryocidal in rabbits when administered intravenously during organogenesis in doses (3 mg/kg) approximately equal to the human exposure (based on AUC) at the dose for AMI. No maternal or fetal toxicity was evident at doses (1 mg/kg) approximately 0.3 times the human exposure.
In pregnant rats, no maternal or fetal toxicity was evident at doses (1 mg/kg) approximately 0.6 times the human dose for AMI (based on body weight) dosed during the period of organogenesis.
🧒 Pediatric Use ▾
8.4Pediatric Use Safety and effectiveness of Activase in pediatric patients have not been established.
🧓 Geriatric Use ▾
8.5Geriatric Use Acute Ischemic Stroke In exploratory, multivariate analyses of Studies 1 and 2, age greater than 77 years was one of several interrelated baseline characteristics associated with an increased risk of intracranial hemorrhage. Efficacy results suggest a reduced but still favorable clinical outcome for Activase-treated elderly [see Clinical Studies (14.1) ] . Acute Myocardial Infarction In a large trial of accelerated-infusion Activase that enrolled 41,021 patients with AMI to one of four thrombolytic regimens [see Clinical Studies (14.2) ] , patients over 75 years of age, a predefined subgroup, comprised 12% of enrollment.
In these patients, the incidence of stroke was 4.0% for the Activase accelerated infusion group, 2.8% for streptokinase IV [SK (IV)], and 3.2% for streptokinase SQ [SK (SQ)]. The incidence of combined 30-day mortality or nonfatal stroke was 20.6% for accelerated infusion of Activase, 21.5% for SK (IV), and 22.0% for SK (SQ).
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Alteplase is a serine protease responsible for fibrin-enhanced conversion of plasminogen to plasmin. It produces limited conversion of plasminogen in the absence of fibrin. When introduced into the systemic circulation at pharmacologic concentration, alteplase binds to fibrin in a thrombus and converts the entrapped plasminogen to plasmin. This initiates local fibrinolysis with limited systemic proteolysis.
12.2Pharmacodynamics Following administration of 100 mg Activase, there is a decrease (16%-36%) in circulating fibrinogen. In a controlled trial, 8 of 73 patients (11%) receiving Activase (1.25 mg/kg body weight over 3 hours) experienced a decrease in fibrinogen to below 100 mg/dL.
12.3Pharmacokinetics Alteplase in acute myocardial infarction (AMI) patients is rapidly cleared from the plasma with an initial half-life of less than 5 minutes. There is no difference in the dominant initial plasma half-life between the 3-hour and accelerated regimens for AMI. The plasma clearance of alteplase is 380-570 mL/min, primarily mediated by the liver. The initial volume of distribution approximates plasma volume.
🧬 Mechanism of Action ▾
12.1Mechanism of Action Alteplase is a serine protease responsible for fibrin-enhanced conversion of plasminogen to plasmin. It produces limited conversion of plasminogen in the absence of fibrin. When introduced into the systemic circulation at pharmacologic concentration, alteplase binds to fibrin in a thrombus and converts the entrapped plasminogen to plasmin. This initiates local fibrinolysis with limited systemic proteolysis.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING
16.1How Supplied Activase is supplied as a sterile, lyophilized powder in 50 mg single-dose vials containing vacuum and in 100 mg single-dose vials without vacuum. Each 50 mg Activase vial (29 million IU) is packaged with diluent for reconstitution (50 mL Sterile Water for Injection, USP): NDC 50242-044-13. Each 100 mg Activase vial (58 million IU) is packaged with diluent for reconstitution (100 mL Sterile Water for Injection, USP), and one transfer device: NDC 50242-085-27.
16.2Stability and Storage Store lyophilized Activase at controlled room temperature not to exceed 30°C (86°F), or under refrigeration at 2° to 8°C (36° to 46°F). Protect the lyophilized material during extended storage from excessive exposure to light. If stored between 2-30°C (36-86°F), Activase may be used within 8 hours following reconstitution.
Discard any unused solution after administration is complete. Do not use beyond the expiration date stamped on the vial.
📦 Storage and Handling ▾
16.2Stability and Storage Store lyophilized Activase at controlled room temperature not to exceed 30°C (86°F), or under refrigeration at 2° to 8°C (36° to 46°F). Protect the lyophilized material during extended storage from excessive exposure to light. If stored between 2-30°C (36-86°F), Activase may be used within 8 hours following reconstitution.
Discard any unused solution after administration is complete. Do not use beyond the expiration date stamped on the vial.
📋 Description ▾
11 DESCRIPTION Alteplase is a tissue plasminogen activator produced by recombinant DNA technology. It is a sterile, purified glycoprotein of 527 amino acids. It is synthesized using the complementary DNA (cDNA) for natural human tissue-type plasminogen activator obtained from a human melanoma cell line.
Biological potency is determined by an in vitro clot lysis assay and is expressed in International Units (IU). Activase (alteplase) is a sterile, white to off-white, lyophilized powder for intravenous administration after reconstitution with Sterile Water for Injection, USP. Table 6 Quantitative Composition of the Lyophilized Product 100 mg Vial 50 mg Vial Alteplase 100 mg (58 million IU) 50 mg (29 million IU) L-Arginine 3.5 g 1.7 g Phosphoric Acid 1 g 0.5 g Polysorbate 80 10 mg 5 mg Vacuum No Yes The reconstituted preparation results in a colorless to pale yellow transparent solution containing Activase 1 mg/mL at approximately pH 7.3.
The osmolality of this solution is approximately 215 mOsm/kg.
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Following Activase administration, patients are at increased risk of bleeding internally or externally. Advise patients to contact a health-care professional if they experience symptoms or signs consistent with bleeding (e.g., unusual bruising, pink or brown urine, red or black or tarry stools, coughing up blood, vomiting blood or blood that looks like coffee grounds), headache, or stroke symptoms.
🧬 Pharmacokinetics ▾
12.3Pharmacokinetics Alteplase in acute myocardial infarction (AMI) patients is rapidly cleared from the plasma with an initial half-life of less than 5 minutes. There is no difference in the dominant initial plasma half-life between the 3-hour and accelerated regimens for AMI. The plasma clearance of alteplase is 380-570 mL/min, primarily mediated by the liver. The initial volume of distribution approximates plasma volume.
🧬 Pharmacodynamics ▾
12.2Pharmacodynamics Following administration of 100 mg Activase, there is a decrease (16%-36%) in circulating fibrinogen. In a controlled trial, 8 of 73 patients (11%) receiving Activase (1.25 mg/kg body weight over 3 hours) experienced a decrease in fibrinogen to below 100 mg/dL.
🔬 Clinical Studies ▾
14 CLINICAL STUDIES
14.1Acute Ischemic Stroke (AIS) Two placebo-controlled, double-blind trials (Studies 1 and 2) were conducted in patients with AIS. Both studies enrolled patients with measurable neurological deficit who could complete screening and begin study treatment within 3 hours from symptom onset. A cranial computerized tomography (CT) scan was performed prior to treatment to rule out the presence of intracranial hemorrhage.
Blood pressure was actively controlled (185/110 mm Hg or lower) for 24 hours. Patients were randomized (1:1) to receive either 0.9 mg/kg Activase (maximum of 90 mg) or placebo. Activase was administered as a 10% initial IV bolus over 1 minute followed by continuous IV infusion of the remainder over 60 minutes.
Study treatment was initiated prior to the availability of coagulation study results in patients without recent use of oral anticoagulants and/or heparin and was discontinued if the pretreatment prothrombin time (PT) was greater than 15 seconds or the activated partial thromboplastin time (aPTT) was elevated. Patients with prior aspirin use were included. Administration of anticoagulants and antiplatelet agents was prohibited for the first 24 hours following symptom onset.
Study 1 (n=291) evaluated neurological improvement at 24 hours after stroke onset. The primary endpoint, the proportion of patients with a 4 point or greater improvement in the National Institutes of Health Stroke Scale (NIHSS) score or complete recovery (NIHSS score of 0), was not significantly different between treatment groups. A prespecified secondary analysis suggested improved 3-month outcome associated with Activase treatment using the following stroke assessment scales: Barthel Index, Modified Rankin Scale, Glasgow Outcome Scale, and the NIHSS.
Study 2 (n=333) assessed clinical outcome at 3 months. A favorable outcome was defined as minimal or no disability using four stroke assessment scales: Barthel Index (score of 95 or greater), Modified Rankin Scale (score of 1 or less), Glasgow Outcome Scale (score of 1), and NIHSS (score of 1 or less). The results comparing Activase- and placebo-treated patients for the four outcome scales together (Generalized Estimating Equations) and individually are presented in Table 7 .
In this study, depending upon the scale, the favorable outcome of minimal or no disability occurred in at least 11 per 100 more patients treated with Activase than those receiving placebo. Study results demonstrated consistent functional and neurological improvement within all four stroke scales as indicated by median scores. These results were consistent with the 3-month outcome treatment effects observed in Study 1.
Table 7 Study 2 Three-Month Efficacy Outcomes Analysis Frequency of Favorable Outcome Favorable Outcome is defined as recovery with minimal or no disability. Placebo (n=165) Activase (n=168) Absolute Difference (95% CI) Odds Ratio Value greater than 1 indicates odds of recovery in favor of Activase treatment. (95% Cl) p-Value p-Value for Odds Ratio is from Generalized Estimating Equations with logit link.
Generalized Estimating Equations (Multivariate) - - - 1.71 (1.15, 2.56)
0.02Barthel Index 37.6% 50.0% 12.4% (3.0, 21.9) 1.66 (1.07, 2.57)
0.02Modified Rankin Scale 26.1% 38.7% 12.6% (3.7, 21.6) 1.79 (1.12, 2.85)
0.02Glasgow Outcome Scale 31.5% 44.0% 12.5% (3.3, 21.8) 1.71 (1.09, 2.68)
0.02NIHSS 20.0% 31.0% 11.0% (2.6, 19.3) 1.79 (1.06, 2.96)
0.02In a prespecified subgroup analysis of patients receiving aspirin prior to onset of stroke symptoms, the favorable outcome for Activase-treated patients was preserved.
14.2Acute Myocardial Infarction (AMI) Two Activase dose regimens have been studied in patients experiencing acute myocardial infarction [see Dosage and Administration (2.2) ]. The comparative efficacy of these two regimens has not been evaluated. Accelerated Infusion in AMI Patients Accelerated infusion of Activase was studied in an international, multi-center trial that ran… [Excerpted — this section continues on DailyMed.]
🧪 Nonclinical Toxicology ▾
13 NONCLINICAL TOXICOLOGY
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Long-term studies in animals have not been performed to evaluate the carcinogenic potential or the effect on fertility. Short-term studies, which evaluated tumorigenicity of Activase and effect on tumor metastases in rodents, were negative. Studies to determine mutagenicity (Ames test) and chromosomal aberration assays in human lymphocytes were negative at all concentrations tested.
Cytotoxicity, as reflected by a decrease in mitotic index, was evidenced only after prolonged exposure and only at the highest concentrations tested.
📄 Carcinogenesis, Mutagenesis, Impairment of Fertility ▾
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Long-term studies in animals have not been performed to evaluate the carcinogenic potential or the effect on fertility. Short-term studies, which evaluated tumorigenicity of Activase and effect on tumor metastases in rodents, were negative. Studies to determine mutagenicity (Ames test) and chromosomal aberration assays in human lymphocytes were negative at all concentrations tested.
Cytotoxicity, as reflected by a decrease in mitotic index, was evidenced only after prolonged exposure and only at the highest concentrations tested.
📖 Instructions for Use ▾
INSTRUCTIONS FOR USE Activase® (alteplase) for injection for intravenous use 100 mg (58 million IU) Read before preparing Activase® See also enclosed, full prescribing information Instructions for Use should accompany reconstituted Activase to patient bedside. Kit Contents Transfer device Activase vial (no vacuum) Activase vial stopper parts: Sterile Water for Injection (water) vial Note: Do not use Bacteriostatic Water for Injection, USP. Prescribing Information Instructions for Use Also Required (not included in kit) 1 Luer syringe for removing bolus dose, as needed 1 Luer syringe for removing excess volume, as needed 2 large bore needles 2 Alcohol swabs IV infusion set Reconstitution (use aseptic technique) Step 1: Cleaning Step 2: Spiking Water vial Step 3: Spiking Activase vial Remove caps from both vials.
Wipe each stopper with a separate alcohol swab. Remove cover from one end of transfer device . Do not wipe transfer device spikes with alcohol.
(Note: Either side of transfer device can be used). Insert spike straight through center of water vial stopper. Do not invert water vial yet.
Inverting too early may lead to leakage and incorrect dosing. Remove cover from other end of transfer device. Hold Activase vial upside down over spike.
Press Activase vial down to insert spike straight through center of Activase vial stopper. Inserting the spike off-center could lead to stopper collapse. Reconstitution (use aseptic technique) Administration Warning Step 4: Inverting and transferring Step 5: Inspecting Invert vials so that water vial is on top.
Allow all water to transfer into Activase vial. If the flow does not start immediately or pauses, initiate the flow by flipping and re-inverting the vials. Swirl gently and/or invert slowly to dissolve Activase powder.
Do not shake vials. Shaking may lead to excessive foaming and degraded medication. Separate empty water vial and transfer device from Activase vial.
Reconstituted Activase vial (1 mg/mL) should be: Colorless to pale yellow and transparent Free of particulates If needed, let stand undisturbed for a few minutes to allow large bubbles to dissipate. Review important information below before continuing to Step 6. Do not push air from the syringe into the vial.
The vial is not under vacuum and adding air at any time may result in leakage and incorrect dosing. Only insert needles within center ring of stopper, away from hole made by transfer device. Insert needle within center ring of stopper, away from the hole made by transfer device when withdrawing medication to avoid leakage and incorrect dosing.
Do not insert needles outside of the center ring of stopper. Administration (use aseptic technique) Step 6: Preparing bolus Step 7: Removing excess volume Step 8: Spiking and hanging Check if bolus is needed. If yes, attach needle to empty Luer syringe.
Insert needle once through center ring of stopper, away from hole made by transfer device, and slowly withdraw the bolus amount. Check if there is excess volume in vial. If yes, attach needle to empty Luer syringe.
Insert needle once through center ring of stopper, away from hole made by transfer device, and slowly withdraw the excess volume. Insert spike from IV tubing set into center of vial stopper, through same hole made by transfer device. Do not push any air from syringe into vial (may cause leakage).
Do not push any air from syringe into vial (may cause leakage). Do not make a new hole in the vial stopper. Additional holes in vial stopper may lead to leakage.
Alternatively, the bolus can be left in the vial and administered via an infusion pump or removed from a port on the infusion line. Discard any excess volume. Leave infusion dose in vial.
Peel clear plastic hanger from vial label. Hang on IV pole and administer per facility protocol. Administration Notes Activase is for intravenous administration only.
Do not add any other medication to infusion solutions containing Activase. Extravasation of Activase infusion can ca… [Excerpted — this section continues on DailyMed.]
📄 Recent Major Changes ▾
Dosage and Administration ( 2.5 ) 09/2022
📄 Package Label / Principal Display Panel ▾
PRINCIPAL DISPLAY PANEL - Kit Carton - 50 mg NDC 50242-044-13 Activase ® (alteplase) For Injection 50 mg per vial For Intravenous Use Single-Dose Vial Discard Unused Portion a tissue plasminogen activator 10243242 Genentech PRINCIPAL DISPLAY PANEL - Kit Carton - 50 mg
PRINCIPAL DISPLAY PANEL - Kit Carton - 100 mg NDC 50242-085-27 Activase ® (alteplase) For Injection 100 mg per vial For Intravenous Use Single-Dose Vial Discard Unused Portion a tissue plasminogen activator 10236862 Genentech PRINCIPAL DISPLAY PANEL - Kit Carton - 100 mg
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