pralatrexate (Intravenous route)
Commonly used brand name(s)
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antineoplastic Agent
Pharmacologic Class: Antimetabolite
Uses For pralatrexate
Pralatrexate injection is used to treat peripheral T-cell lymphoma (PTCL) in patients who have already been treated with other medicines that did not work well. Peripheral T-cell lymphoma is a rare type of cancer that affects certain white blood cells and causes enlarged and swollen lymph nodes in the neck, armpits, and groin.
Pralatrexate belongs to the group of medicines called antineoplastics (cancer medicines). It interferes with the growth of cancer cells, which are eventually destroyed. Since the growth of normal cells may also be affected by the medicine, other unwanted effects may also occur. Some of these may be serious and must be reported to your doctor.
pralatrexate is to be administered only by or under the immediate supervision of your doctor.
Before Using pralatrexate
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For pralatrexate, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to pralatrexate or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of pralatrexate injection in the pediatric population. Safety and efficacy have not been established.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of pralatrexate injection in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving pralatrexate injection.
|All Trimesters||D||Studies in pregnant women have demonstrated a risk to the fetus. However, the benefits of therapy in a life threatening situation or a serious disease, may outweigh the potential risk.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are receiving pralatrexate, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using pralatrexate with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Measles Virus Vaccine, Live
- Mumps Virus Vaccine, Live
- Rubella Virus Vaccine, Live
- Varicella Virus Vaccine
Using pralatrexate with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Adenovirus Vaccine
- Amtolmetin Guacil
- Bacillus of Calmette and Guerin Vaccine, Live
- Cholera Vaccine, Live
- Choline Salicylate
- Flufenamic Acid
- Ibuprofen Lysine
- Influenza Virus Vaccine, Live
- Mefenamic Acid
- Niflumic Acid
- Nimesulide Beta Cyclodextrin
- Poliovirus Vaccine, Live
- Propionic Acid
- Salicylic Acid
- Smallpox Vaccine
- Sodium Salicylate
- Tiaprofenic Acid
- Tolfenamic Acid
- Typhoid Vaccine
- Yellow Fever Vaccine
Using pralatrexate with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of pralatrexate. Make sure you tell your doctor if you have any other medical problems, especially:
- Anemia (low red blood cells) or
- Bone marrow problems or
- Liver disease or
- Neutropenia (low white blood cells) or
- Thrombocytopenia (low platelets)—Use with caution. May make these conditions worse.
- Kidney disease—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
Proper Use of pralatrexate
A nurse or other trained health professional will give you pralatrexate in a hospital or cancer treatment center. pralatrexate is given through a needle placed in one of your veins.
It is very important to take folic acid tablets during your treatment with pralatrexate to lower your chances of harmful side effects. You must start taking 1 to 1.25 milligrams (mg) of folic acid every day for at least 10 days before your first dose. You must keep taking folic acid every day during therapy and for 30 days after your last pralatrexate dose. You can get folic acid as a nonprescription (over-the-counter [OTC]) product. Ask your doctor for help in choosing a folic acid product.
Your doctor will also give you vitamin B12 injections during your treatment with pralatrexate to lower your chances of harmful side effects. You will get your first injection about 10 weeks before your first dose, and additional injections about every 8 to 10 weeks during therapy.
pralatrexate usually comes with a patient information leaflet. Read the information carefully and make sure you understand it before receiving pralatrexate. If you have any questions, ask your doctor.
Precautions While Using pralatrexate
It is very important that your doctor check your progress at regular visits to make sure that pralatrexate is working properly. Blood tests may be needed to check for unwanted effects.
Make sure your doctor knows if you are pregnant before you receive pralatrexate. If you are a woman of childbearing potential, you should use two forms of birth control together to avoid getting pregnant while you are receiving pralatrexate. If you have become pregnant during your treatment, tell your doctor right away.
Pralatrexate can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:
- If you can, avoid people with infections. Check with your doctor right away if you think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination.
- Check with your doctor right away if you notice any unusual bleeding or bruising; black, tarry stools; blood in the urine or stools; or pinpoint red spots on your skin.
- Be careful when using a regular toothbrush, dental floss, or toothpick. Your medical doctor, dentist, or nurse may recommend other ways to clean your teeth and gums. Check with your medical doctor before having any dental work done.
- Do not touch your eyes or the inside of your nose unless you have just washed your hands and have not touched anything else in the meantime.
- Be careful not to cut yourself when you are using sharp objects such as a safety razor or fingernail or toenail cutters.
pralatrexate may cause mucositis, which is redness or sores on the inside of the mouth or tongue. Check with your doctor right away if you have cracked lips, diarrhea, difficulty with swallowing, or sores, ulcers, or white spots on the lips, tongue, or inside of the mouth while you are receiving pralatrexate.
Serious skin reactions can occur with pralatrexate. Check with your doctor right away if you have blistering, peeling, or loosening of the skin; red skin lesions; severe acne or skin rash; sores or ulcers on the skin; or fever or chills while you are receiving pralatrexate.
pralatrexate may cause a serious type of reaction called tumor lysis syndrome. Your doctor may give you a medicine to help prevent this. Call your doctor right away if you have a decrease or change in urine amount; joint pain, stiffness, or swelling; lower back, side, or stomach pain; a rapid weight gain; swelling of the feet or lower legs; or unusual tiredness or weakness.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
pralatrexate Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor or nurse immediately if any of the following side effects occur:More common
- Black, tarry stools
- bleeding gums
- blood in the urine or stools
- body aches or pain
- cracked lips
- decreased urine
- difficult or labored breathing
- difficulty with swallowing
- dry mouth
- ear congestion
- fast, pounding, or irregular heartbeat or pulse
- increased thirst
- loss of appetite
- loss of voice
- lower back or side pain
- mood changes
- muscle pain or cramps
- nasal congestion
- nausea or vomiting
- numbness or tingling in the hands, feet, or lips
- painful or difficult urination
- pale skin
- pinpoint red spots on the skin
- runny nose
- shortness of breath
- sore throat
- sores, ulcers, or white spots on the lips, tongue, or inside the mouth
- tightness in the chest
- troubled breathing with exertion
- unusual bleeding or bruising
- unusual tiredness or weakness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- Abdominal or stomach pain
- back pain
- bloody nose
- itching skin
- lack or loss of strength
- night sweats
- pain in the arms or legs
- weight loss
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
See also: Side effects (in more detail)
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