Alteplase: Thrombolytic Therapy for Stroke and Blood Clots

Summary or Key Points

Alteplase is a prescription medication used to treat conditions caused by blood clots, such as heart attacks, strokes, and pulmonary embolisms. It works by breaking down clots and restoring blood flow, making it a crucial part of thrombolytic therapy. This medication is typically administered in a hospital setting. Always consult your healthcare provider before starting or adjusting your dose. Our telemedicine practice is available to assist with any questions or concerns regarding your treatment.

Names of Medication

US Brand Name: Activase (Alteplase)

The generic name refers to the active ingredient in the medication, listed in parentheses. The brand name is the name given by the manufacturer.

Pharmacologic Category

Thrombolytic Agents

Dosing

Alteplase is used to treat various conditions, and dosing depends on the specific condition being treated. Always follow your healthcare provider’s instructions and never adjust your dose without consulting them. If you have questions, our telemedicine providers are available to assist you.

Myocardial Infarction (Heart Attack)

Adult Dose: 15 mg IV bolus, followed by 0.75 mg/kg (up to 50 mg) over 30 minutes, then 0.5 mg/kg (up to 35 mg) over 60 minutes.

Ischemic Stroke

Adult Dose: 0.9 mg/kg (maximum 90 mg) IV over 60 minutes, with 10% of the total dose given as an initial bolus over 1 minute. Alteplase is commonly used in stroke therapy.

Pulmonary Embolism

Adult Dose: 100 mg IV over 2 hours.

Deep Vein Thrombosis (DVT)

Adult Dose: 100 mg IV over 2 hours.

Acute Coronary Syndrome

Adult Dose: 15 mg IV bolus, followed by 0.75 mg/kg (up to 50 mg) over 30 minutes, then 0.5 mg/kg (up to 35 mg) over 60 minutes.

Thrombosis

Adult Dose: 100 mg IV over 2 hours.

Peripheral Arterial Occlusion

Adult Dose: 0.1-0.5 mg/hour via catheter for up to 24 hours.

Catheter Occlusion

Adult Dose: 2 mg instilled into the catheter for 30 minutes, may repeat if needed.

Acute Ischemic Stroke

Adult Dose: 0.9 mg/kg (maximum 90 mg) IV over 60 minutes, with 10% of the total dose given as an initial bolus over 1 minute. This is a standard protocol in thrombolytic stroke treatment.

Coronary Artery Thrombosis

Adult Dose: 100 mg IV over 2 hours.

Dosage Forms and Strengths

Injection, powder for reconstitution: 2 mg, 50 mg, 100 mg vials

Administration Instructions

Alteplase is administered by a healthcare professional, typically in a hospital setting, through an intravenous (IV) line. The dose and duration of treatment depend on the condition being treated. It’s important to follow your healthcare provider’s instructions closely. If you have any questions about your treatment, feel free to reach out to one of our telemedicine providers for guidance. Proper administration of alteplase is essential for effective thrombolysis.

Adverse Reactions and Side Effects

Like all medications, Alteplase can cause side effects. Some are more common, while others are rare but serious. If you experience any side effects, contact your healthcare provider immediately.

1. Bleeding (Common): Alteplase can increase the risk of bleeding, including in the brain, which can be serious. Watch for signs of unusual bruising or bleeding.
2. Allergic Reactions (Rare): Some patients may experience an allergic reaction, including rash, itching, or difficulty breathing.
3. Low Blood Pressure (Common): You may feel lightheaded or dizzy due to a drop in blood pressure.
4. Fever (Common): A mild fever may occur after administration.
5. Stroke (Rare but Serious): In rare cases, Alteplase can cause a stroke, especially if used inappropriately.

Contraindications

A contraindication is a specific situation or condition in which a medication should not be used because it may cause harm to the patient. In the case of Alteplase, several conditions make it unsafe to use. These are important to know because taking Alteplase in these situations can increase the risk of serious complications, such as bleeding.

1. Active internal bleeding: Alteplase works by dissolving clots, so if you are already bleeding internally, it can make the bleeding worse.
2. Recent surgery or trauma: If you’ve had surgery or a serious injury within the last few weeks, using Alteplase can increase the risk of bleeding at the surgical site or injury.
3. History of hemorrhagic stroke: If you’ve had a stroke caused by bleeding in the brain, Alteplase could increase the risk of another bleed in the brain.
4. Uncontrolled high blood pressure: High blood pressure can increase the risk of bleeding, especially in the brain. Alteplase can make this risk worse.
5. Recent gastrointestinal (GI) bleeding: If you’ve had recent bleeding in your stomach or intestines, Alteplase could cause this bleeding to start again or worsen.
6. Known bleeding disorders: If you have a condition that makes it hard for your blood to clot, Alteplase can increase the risk of severe bleeding.
7. Allergy to Alteplase: If you are allergic to Alteplase or any of its components, you should not take it, as it could cause a severe allergic reaction.

Drug to Drug Interactions

Alteplase, a thrombolytic therapy, can interact with other medications, potentially increasing the risk of bleeding or reducing its effectiveness. It’s essential to inform your healthcare provider about all medications you are taking, including over-the-counter drugs and supplements. Some medications that may interact with Alteplase include:

1. Anticoagulants: Drugs like warfarin (Coumadin) or heparin can significantly increase the risk of bleeding when used alongside Alteplase.
2. Antiplatelet drugs: Medications such as aspirin, clopidogrel (Plavix), or ticagrelor (Brilinta) may also elevate the risk of bleeding when combined with Alteplase.
3. Nonsteroidal anti-inflammatory drugs (NSAIDs): Common pain relievers like ibuprofen (Advil, Motrin) or naproxen (Aleve) can further raise the risk of bleeding when taken with Alteplase.

Alteplase in Pregnancy

Is it Safe to Take Alteplase During Pregnancy?

There is limited information on the safety of Alteplase during pregnancy. It should only be used if the potential benefits outweigh the risks. If you are pregnant or planning to become pregnant, it’s important to discuss this with your healthcare provider. They will help you carefully weigh the risks and benefits of using Alteplase in your specific situation. If you have concerns, you can schedule a telemedicine appointment with one of our providers to explore your options.

Alteplase While Breastfeeding

Is it Safe to Take Alteplase While Breastfeeding?

There is insufficient data to determine whether Alteplase passes into breast milk or if it could affect a nursing infant. If you are breastfeeding and need to take Alteplase, your healthcare provider will help you decide whether to continue breastfeeding or consider alternative treatments. Be sure to discuss any concerns with your provider, and if you need immediate advice, you can reach out to one of our telemedicine providers for guidance.

Estimated Cost of Alteplase

The cost of Alteplase, a commonly used medication for blood clots, can vary depending on your location and pharmacy. Without insurance, the estimated cost of a 30-day supply using a GoodRx coupon ranges from approximately $6,000 to $8,000. Be sure to check with your pharmacy for the most accurate pricing and inquire about any available discounts or patient assistance programs.

Possible Alternatives to Alteplase

Depending on the condition being treated, there may be alternative treatments or lifestyle changes that could help manage your condition. Always discuss these alternatives with your healthcare provider before making any changes to your treatment plan. Here are some possible alternatives for conditions treated with Alteplase:

1. Myocardial infarction (heart attack): Alternatives include medications like aspirin, beta-blockers, and statins. Lifestyle changes, such as quitting smoking, adopting a heart-healthy diet, and engaging in regular exercise, can also be beneficial.
2. Ischemic stroke: Other treatments may include antiplatelet drugs like aspirin or clopidogrel (Plavix). Rehabilitation therapies, such as physical and speech therapy, are also crucial for recovery.
3. Pulmonary embolism: Anticoagulants like warfarin (Coumadin) or rivaroxaban (Xarelto) may be used as alternatives. Compression stockings and regular physical activity can help prevent future clots.
4. Deep vein thrombosis (DVT): Anticoagulants such as heparin or apixaban (Eliquis) are commonly prescribed. Regular exercise and wearing compression stockings can also help prevent DVT.
5. Acute coronary syndrome: Medications like nitroglycerin, aspirin, and beta-blockers may be used. Lifestyle changes, including improving your diet and increasing physical activity, are also recommended.
6. Thrombosis: Anticoagulants and antiplatelet drugs are common alternatives. Staying active and maintaining a healthy weight can help reduce the risk of thrombosis.
7. Peripheral arterial occlusion: Medications like cilostazol (Pletal) or pentoxifylline (Trental) may be prescribed. Regular exercise and smoking cessation are also important for managing this condition.
8. Catheter occlusion: Alternatives include mechanical methods to clear the blockage or using other clot-dissolving agents like urokinase.
9. Acute ischemic stroke: Antiplatelet drugs and anticoagulants may be used as alternatives. Rehabilitation therapies are essential for recovery.
10. Coronary artery thrombosis: Anticoagulants, antiplatelet drugs, and lifestyle changes such as improving diet and exercise can help manage this condition.

Recent Updates on Alteplase Research

Recent studies have focused on optimizing the timing and delivery of Alteplase in treating ischemic stroke. Research indicates that administering Alteplase within 3 to 4.5 hours of stroke onset significantly improves patient outcomes. Ongoing studies are also exploring the use of Alteplase in combination with other therapies, such as mechanical thrombectomy, to further enhance recovery. Additionally, researchers are investigating the potential use of Alteplase in treating other conditions, such as certain types of cancer-related blood clots. As more research becomes available, it will help refine the use of Alteplase and potentially expand its applications.

James Kingsley

Learn More