Drug Formulary information is intended for use by healthcare professionals. It is not intended to be medical advice. Some of the information, including information about funding for cancer drugs, does not apply to all patients. Cancer treatment plans are unique to each patient. If you are a patient, please speak with your healthcare team to understand how this information applies to you.

drug-infosheet

olaratumab

Other Names
Lartruvo
Appearance
solution

mixed into larger bags of fluids

Medication Information Sheet
olaratumab (oh lar AT ue mab)
This document provides general information about your medication. It does not replace the advice of your health care professional. Always discuss your therapy with your health care professional and refer to the package insert for more details.

Other Name: Lartruvo

Appearance:
solution

mixed into larger bags of fluids

What is this medication for?
  • For treating a type of cancer called soft tissue sarcoma in combination with another medication. 

What should I do before I have this medication?
  • Tell your health care team if you have or had significant medical condition(s), such as: 
    • liver, kidney or heart problems;
    • bleeding problems;
    • or any allergies
  • People with cancer have a higher risk of getting other cancers or developing blood clots. Some cancer medications may increase these risks, especially if used for a long period of time. Discuss any concerns about this medication with your health care team.
How will this medication affect sex, pregnancy and breastfeeding?
  • The use of this medication in men or women may cause harm to the unborn baby if pregnancy occurs. Let your health care team know if you or your partner is pregnant, becomes pregnant during treatment, or if you are breastfeeding
     
  • ► Use 2 effective forms of birth control at the same time while taking this drug. Keep using birth control for at least 3 months after your last dose unless your health care team told you differently. Talk to your health care team to figure out the best method(s) for you and/or your partner.
     
  • Do not breastfeed while using this drug and for at least 3 months after your last dose. 
     
  • This medication may affect fertility (ability to get pregnant)

     
How is this medication given?
  • This drug is given by injection into a vein.

What else do I need to know while on this medication?
  • Although it is unlikely that other medications can affect your treatment, make sure your health care team knows about all of your medicines (prescription or over-the-counter medications, herbals and supplements). Check with your health care team before starting or stopping any of them.

  • For mild aches and pain or fever:

    • If you feel unwell, take your temperature before taking any medications for pain or fever. They may hide a fever. 
       
    • You may take acetaminophen (Tylenol®) tablets. Ask your health care team about the right dose for you. 
       
    • Ibuprofen (Advil®, Motrin®), naproxen (Aleve®) or aspirin (acetylsalicylic acid, ASA), including low dose aspirin for heart conditions, may increase your chance of bleeding. Talk to your health care team before you start or stop these medications.
       
    • Talk to your health care team or go to the closest emergency room right away if you have a fever.  See the Fever pamphlet for more information.
  • Drinking alcohol and smoking during your treatment may increase some side effects and make your medication less effective. Speak to your health care team about smoking and drinking alcohol while on treatment.

What are the side effects of this medication?

You may not have all of the side effects below. You may have side effects that are not listed.

Side effects and what to do When to contact doctor?
More Common Side Effects (50 or more out of 100 people)

Nausea and vomiting (generally mild)

May occur in hours to days after your treatment. 

If you have nausea or vomiting:

  • Take anti-nausea medication(s) as prescribed to you by your doctor. 
  • Drink clear liquids and have small meals. Get fresh air and rest.
  • Do not eat spicy, fried foods or foods with a strong smell.
  • Limit caffeine (e.g. coffee, tea) and alcohol.
  • Contact your health care team if the prescribed anti-nausea medications are not helping to control your nausea and vomiting.

 Also see Nausea & Vomiting pamphlet for more information.

Contact your healthcare team if no improvement or if severe

Mild joint, muscle pain or cramps 

  • Take your pain medication as prescribed by your doctor.
  • You can take acetaminophen (Tylenol®) tablets as needed for mild aches and pains. Ask your doctor or pharmacist about the right dose for you.
  • Talk to your doctor or pharmacist first before taking ibuprofen (Advil®, Motrin®), naproxen (Aleve®) or aspirin. These medication may increase bleeding risk.
  • Rest often and try light exercise as it may help.
  • See the Pain pamphlet for more information.
Contact your health care team if no improvement or if severe

Unusual bleeding or bruising

You may have black stools, cough up blood, blood in your urine, purple or red dots on your skin or bleeding that will not stop. 

Fever, chills, infection

You have a fever if your temperature taken in your mouth (oral temperature) is:

  • 38.3°C (100.9°F) or higher at any time OR
  • 38.0°C (or 100.4°F) or higher for at least one hour.

While you are getting treatment:

  • Keep a digital thermometer at home and take your temperature if you feel hot or unwell (for example, chills).
  • Avoid taking medications that treat a fever before you take your temperature (for example, Tylenol®, acetaminophen, Advil® or ibuprofen) as they may hide a fever.
  • Do not eat or drink anything hot or cold right before taking your temperature.
  • Wash your hands often to prevent infection.
  • Check with your doctor before getting any vaccines, surgeries, medical procedures or visiting your dentist.


If you have a fever, talk to your health care team or go to the closest emergency room. 
See our Neutropenia (Low white blood cell count) pamphlet for more information.

Get emergency medical help right away

Mouth sores

You may have round, painful, white or gray sores inside your mouth. They can occur on the tongue, lips, gums, or inside your cheeks. In more severe cases they may make it hard swallow, eat or to brush your teeth. They usually last 1 to 2 weeks.

To help prevent mouth sores: 

  • Take care of your mouth by gently brushing and flossing regularly.
  • Rinse your mouth often. Do not use mouthwashes with alcohol.
  • Instead, try a homemade mouthwash:
  • Mix 1 teaspoonful of baking soda and 1 teaspoonful of salt in 4 cups (1L) of water.

If you have mouth sores:

  • Check with your health care team as soon as you notice mouth or lip sores or if it hurts to swallow.
  • Avoid hot, spicy, acidic, hard or crunchy foods.  Your doctor may prescribe a mouthwash to relieve mouth sores and prevent infection.

See the Mouth Care pamphlet for more information.

Contact your health care team as soon as possible 

Hair thinning or loss 

  • Use a gentle soft brush and avoid hair sprays, bleaches, dyes and perms.
  • In most cases, your hair will grow back after treatment, but the texture or colour may change. 
Talk to your health care team if this bothers you

High blood sugar 

  • You may feel thirsty and pee more often.
  • Your doctor may check your blood sugar level. You may be advised to change your diet or take medication to treat high blood sugar.
  • Check your blood sugar regularly if you have diabetes.
Contact your health care team as soon as possible 

 

Side effects and what to do When to contact doctor?
Common Side Effects (25 to 49 out of 100 people)

Diarrhea

May happen days to weeks after you get your treatment.

If you have diarrhea :

  • Take anti-diarrhea medication if your health care team prescribed it.
  • Avoid foods or drinks with artificial sweetener (e.g. chewing gum, “diet” drinks), coffee and alcohol.
  • Eat many small meals and snacks instead of 2 or 3 large meals.
  • Drink at least 6 to 8 cups of liquids each day. Talk to your health care team if you can’t drink 6-8 cups of liquids each day when you have diarrhea. You may need special liquids with salt and sugar, called Oral Rehydration Therapy.

​See the Diarrhea pamphlet for more information.

Contact your health care team if no improvement or if severe

Low appetite

  • You may not feel like eating or you may lose weight.
  • Try to eat foods that you like and eat small meals throughout the day. 
  • You may need to take meal supplements to help keep your weight up.
  • Talk to your health care team if you have a low appetite.
  • See our Loss of appetite pamphlet for more information.
Contact your health care team if no improvement or if severe

 

Side effects and what to do When to contact doctor?
Less Common Side Effects (10 to 24 out of 100 people)

Pains or cramps in the belly

  • If you have constipation or diarrhea it may be causing the pain in your belly.
  • If the pain is severe, gets worse or doesn’t go away, talk to your health care team about other possible causes.
Contact your health care team if no improvement or if severe

Tingling, numb fingers and toes

  • May slowly get better after your treatment ends.
  • Contact your health care team if you have trouble doing up buttons, writing, picking up small objects, have pain or trouble moving.
     
Contact your health care team if no improvement or if severe

Salt imbalances

It may cause muscle twitching, severe weakness or cramping, confusion and irregular heartbeat.

Get emergency medical help right away

Headache

  • Take your pain medication as prescribed by your doctor.
  • You can take acetaminophen (Tylenol®) tablets as needed for mild aches and pains. Ask your doctor or pharmacist about the right dose for you.
  • Talk to your doctor or pharmacist first before taking ibuprofen (Advil®, Motrin®), naproxen (Aleve®) or aspirin. These medication may increase bleeding risk.
  • Rest often and try light exercise as it may help.
Contact your health care team if no improvement or if severe

Allergic reaction (may be severe) 

  • The most common symptoms include fever, flushing, itchiness, rash, swollen lips, face or tongue, wheezing, chest and throat tightness.
  • It may occur during or shortly after the medication is given to you. Let your health care team know right away if this happens to you.
  • You may be given medicines to prevent or treat this reaction
Get emergency medical help right away

Feeling nervous or anxious

  • Try talking with family and friends.
  • Eat well, exercise, and have good sleep habits.
Contact your health care team if no improvement or if severe

Dry eyes

  • You may have dry eyes, redness, irritation, pain, tearing, sensitivity to light or blurred vision.
  • Avoid wearing contact lenses.
  • You may try artificial tears or ointment. 
Contact your health care team as soon as possible 

For more links on how to manage your symptoms go to www.cancercareontario.ca/symptoms.

The information set out in the medication information sheets, regimen information sheets, and symptom management information (for patients) contained in the Drug Formulary (the "Formulary") is intended to be used by health professionals and patients for informational purposes only. The information is not intended to cover all possible uses, directions, precautions, drug interactions or side effects of a certain drug, nor should it be used to indicate that use of a particular drug is safe, appropriate or effective for a given condition.

A patient should always consult a healthcare provider if he/she has any questions regarding the information set out in the Formulary. The information in the Formulary is not intended to act as or replace medical advice and should not be relied upon in any such regard. All uses of the Formulary are subject to clinical judgment and actual prescribing patterns may not follow the information provided in the Formulary.

Last Updated: July 21, 2026