Home > Safety & Study Results

What are the possible
results and side effects
of TAZVERIK™ (tazemetostat)?

TODO Results of study

What were the results of the study?

Every individual is different and may respond differently. In a clinical study specifically for epithelioid sarcoma:

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of patients (n=9/62) had an overall response*† to TAZVERIK (meaning the cancer either reduced in size by at least 30% or completely disappeared)
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of patients (n=1/62) had a complete response (meaning their target tumors completely disappeared)
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of patients (n=8/62) had a partial response (meaning their target tumors reduced in size by at least 30%)

*The overall response is the sum of partial responses and complete responses.

The time to tumor shrinkage in the clinical trial ranged from around 1 month to around 18 months.

TODO Possible side effects

What are the possible side effects of TAZVERIK?

It is important that you are informed about the potential side effects during treatment with TAZVERIK. Talk to your doctor about concerns you may have.

TAZVERIK can cause serious side effects, including:

  • Risk of new cancers. An increase in new (second) cancers has happened in people who were treated with TAZVERIK. Talk with your healthcare provider about your risk of developing new cancers. Your healthcare provider will monitor you for new cancers after your treatment with TAZVERIK. Tell your healthcare provider if you are more tired than usual, or have easy bruising, fever, bone pain, or paleness.

The most common side effects of TAZVERIK in people with epithelioid sarcoma include:

  • Pain
  • Tiredness
  • Nausea
  • Decreased appetite
  • Vomiting
  • Constipation

These are not all the possible side effects of TAZVERIK. Call your doctor for medical advice about side effects.

You are encouraged to report negative side effects of prescription drugs to FDA. Visit www.fda.gov/medwatch, or call 1‑800‑FDA‑1088.

TODO Important information to know and share

What important information should I know before and while taking TAZVERIK?

What should I tell my healthcare provider before taking TAZVERIK?

    Tell your healthcare provider about all your medical conditions, including if you:
  • Are pregnant or plan to become pregnant. TAZVERIK can harm your unborn baby. Your healthcare provider will give you a pregnancy test before you start treatment with TAZVERIK. Tell your healthcare provider right away if you become pregnant or think you may be pregnant.
    • Females who are able to become pregnant should use effective non-hormonal birth control (such as condoms) during treatment and for 6 months after the final dose of TAZVERIK. Birth control pills (oral contraceptives) and other hormonal forms of birth control may not be effective if used during treatment with TAZVERIK. Talk to your healthcare provider about birth control options that are right for you.
    • Males with female partners who are able to become pregnant should use effective birth control during treatment and for 3 months after the final dose of TAZVERIK.
  • Are breastfeeding or plan to breastfeed. It is not known if TAZVERIK passes into your breast milk. Do not breastfeed during treatment and for 1 week after the final dose of TAZVERIK.
  • Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. TAZVERIK may affect the way other medicines work and other medicines may affect how TAZVERIK works.

TODO What should I avoid while taking TAZVERIK

  • Avoid eating grapefruit or drinking grapefruit juice during treatment with TAZVERIK.
  • Avoid taking St. John’s wort during treatment with TAZVERIK.

Talk to your healthcare provider before starting any new medications or supplements.

TODO General information

General information about the safe and effective use of TAZVERIK

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use TAZVERIK for a condition for which it was not prescribed. Do not give TAZVERIK to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about TAZVERIK that is written for health professionals.

Learn more about TAZVERIK and how it works.

how tazverik works

Learn more about recommended dosing and  how  to  take  TAZVERIK.

Dosing & administration
Indication and Important Safety Information

INDICATION

What is TAZVERIK?

TAZVERIK is a prescription medicine used to treat adults and children aged 16 years and older with epithelioid sarcoma that has spread or grown and cannot be removed by surgery.

The approval of TAZVERIK in these patients is based on a study that measured the percentage of patients whose tumor shrank or disappeared after treatment and how long that response lasted. TAZVERIK is still being studied to confirm these benefits.

It is not known if TAZVERIK is safe and effective in children less than 16 years of age.

IMPORTANT SAFETY INFORMATION

What is the most important information I should know about TAZVERIK™ (tazemetostat)?

TAZVERIK can cause serious side effects, including:
Before taking TAZVERIK tell your healthcare provider about all of your medical conditions, including if you:

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. TAZVERIK may affect the way other medicines work and other medicines may affect how TAZVERIK works.

What should I avoid while taking TAZVERIK?

Talk to your healthcare provider before starting any new medications or supplements.

What are the possible side effects of TAZVERIK?

The most common side effects of TAZVERIK in people with epithelioid sarcoma include:

These are not all the possible side effects of TAZVERIK.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Please read the full Prescribing Information, including Medication Guide for TAZVERIK, and discuss it with your doctor.