Sipuleucel-T (Provenge™)

OncoLink
Last Modified: April 20, 2012

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Pronounced: SI-pu-LOO-sel tee
Classification: Antineoplastic Agent

About Sipuleucel-T

Sipuleucel-T is an example of immunotherapy, which is a type of therapy that is designed to stimulate the body's immune system to attack the cancer cells. Sipuleucel-T is tailor-made specifically for each patient, created from his body's own immune cells. Immune cells are first collected from the patient and exposed to a protein that "teaches" the immune cells to target the cancer cells. These immune cells are then given back to the patient to help treat his prostate cancer.

How to Take Sipuleucel-T

Sipuleucel-T is given by a 60-minute intravenous (IV) infusion in the your oncologist's office. Patients receive 3 doses, each given approximately 2 weeks apart. Prior to each dose, the patient may be given medications, including acetaminophen and an antihistamine (such as diphenhydramine), to decrease the risk of an infusion reaction.

Prior to each dose, the patient must undergo the collection of his immune cells, which will be used to make that dose. This is done by leukapheresis, a procedure that is similar to dialysis or platelet donation. The immune cells are sent to a processing facility, where they are combined with an immune cell activator called granulocyte-macrophage colony-stimulating factor (GM-CSF), and then returned to the physician for infusion.

Possible Side Effects of Sipuleucel-T

There are a number of things you can do to manage the side effects of Sipuleucel-T. Talk to your doctor or nurse about these recommendations. They can help you decide what will work best for you. These are some of the most common side effects:

Immune System Reactions

Sipuleucel-T stimulates the immune system, much like a flu virus would, and expected side effects are related to this stimulation. Often called "flu-like symptoms", these include chills, fever, fatigue, achy joints and muscles and headache. Talk to your healthcare team about using acetaminophen or ibuprofen to manage these symptoms. They typically last only a few days after the infusion.

Infusion-Related Side Effects

Almost three-quarters of the people who received sipuleucel-T in clinical trials experienced an infusion reaction. Symptoms of an infusion reaction include: fever, chills, low blood pressure, racing heart, shortness of breath, flushing, swelling of the throat or face, abdominal or back pain and nausea. You will likely receive several medications prior to the infusion to help prevent these reactions. Tell your infusion nurse immediately if you notice any of these symptoms, as the nurse may need to slow or stop the infusion or give additional medications to relieve the symptoms. Most patients can resume the infusion at a slower rate. It is possible to have a reaction up to 1 day after the infusion, so be sure to notify your healthcare provider if you experience any symptoms.

Fatigue

While on cancer treatment you may need to adjust your schedule to manage fatigue. Plan times to rest during the day and conserve energy for more important activities. Exercise can help combat fatigue; a simple daily walk with a friend can help. Talk to your healthcare team and see OncoLink's section on fatigue for helpful tips on dealing with this side effect.

Leukapheresis Side Effects

Your immune cells are collected using a process called leukapheresis. Your blood is run through a machine, which removes the immune cells needed to make the medication, and then the blood is returned to you. The process can cause numbness or tingling felt around the lips, which is usually resolved by taking some calcium tablets (like Tums). Patients may also feel tired after the collection. In some cases, enough cells to make the medication cannot be collected with one leukapheresis session and an additional session is required. If a patient has "bad veins", he may need to have a catheter placed for the weeks of the collections. Talk with your healthcare team about side effects related to the catheter if this is an option for you.



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