Starting Treatment for Indolent Systemic Mastocytosis (ISM)

Shawna, AYVAKIT Patient

What to expect from your treatment journey

Many patients have questions about the next steps in their treatment plan and when to expect results. After you've been prescribed AYVAKIT, find out what to expect in the coming months to ensure you're prepared.

AYVAKIT may take time to see results. In the clinical trial, symptom reduction was evaluated at 6 months.

How to get your prescription

Once you've been prescribed AYVAKIT, your doctor sends your prescription to an eligible pharmacy or to YourBlueprint®.

The pharmacy will verify your insurance coverage and work directly with your healthcare provider to obtain prior authorization if needed.

If coverage is approved, your pharmacy will contact you to communicate your out-of-pocket costs and arrange for delivery or pickup of your medication.

Andrew, a real ISM patient, works on his laptop at a table

Andrew, AYVAKIT Patient

How do I take AYVAKIT?

  • One 25 mg tablet

  • Taken once a day

  • On an empty stomach, at least 1 hour before or at least 2 hours after a meal

The recommended dose of AYVAKIT is 25 mg orally once daily in adults with indolent systemic mastocytosis (ISM).

Talk to your doctor if you have questions about your treatment. Take AYVAKIT exactly as prescribed by your doctor. Do not stop taking AYVAKIT unless your doctor tells you to.

If you miss a dose of AYVAKIT, take it as soon as you remember, unless your next scheduled dose is due within 8 hours. Then, take the next dose at your regular time.

If you vomit after taking a dose of AYVAKIT, do not take an extra dose. Take your next dose at your next scheduled time.

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INDICATION

WHAT IS AYVAKIT® (avapritinib)?

AYVAKIT® (avapritinib) is a prescription medicine used to treat adults with indolent systemic mastocytosis (ISM). AYVAKIT is not recommended in people with low platelet counts (less than 50 X 109/L). It is not known if AYVAKIT is safe and effective in children.

IMPORTANT SAFETY INFORMATION

AYVAKIT® (avapritinib) may cause serious side effects, including:

Cognitive effects. Cognitive side effects can happen during treatment with AYVAKIT and can be severe. Tell your healthcare provider if you develop any new or worsening cognitive symptoms including forgetfulness, confusion, getting lost, trouble thinking, drowsiness, trouble staying awake (somnolence), word finding problems, seeing objects or hearing things that are not there (hallucinations), or a change in mood or behavior.

Skin sensitivity to sunlight (photosensitivity). Your skin may be sensitive to the sun or other forms of light (photosensitivity) during treatment with AYVAKIT. Avoid or limit exposure to direct sunlight, sunlamps, and other sources of ultraviolet radiation during treatment and for 1 week after stopping treatment with AYVAKIT. Use sunscreen or wear clothes that cover your skin if you need to be out in the sun.

Before taking AYVAKIT, tell your healthcare provider about all of your medical conditions, including if you:

  • history of bulging or weakening of a blood vessel wall (aneurysm) or bleeding in your brain
  • have a history of stroke within the last year
  • have low platelet counts
  • have or have had liver problems
  • are pregnant or plan to become pregnant. AYVAKIT can cause harm to your unborn baby
  • Females who are able to become pregnant: Your healthcare provider should do a pregnancy test before you start AYVAKIT. You should use effective birth control (contraception) during treatment with AYVAKIT and for 6 weeks after the final dose of AYVAKIT. Talk to your healthcare provider about birth control methods that may be right for you. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with AYVAKIT.
  • Males with female partners who are able to become pregnant should use effective birth control (contraception) during treatment and for 6 weeks after the final dose of AYVAKIT.
  • are breastfeeding or plan to breastfeed. It is not known if AYVAKIT passes into your breast milk. Do not breastfeed during treatment with AYVAKIT and for at least 2 weeks after the final dose of AYVAKIT. Talk to your healthcare provider about the best way to feed your baby during this time

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. AYVAKIT may affect the way other medicines work, and certain other medicines may affect how AYVAKIT works. Especially tell your healthcare provider if you take estrogen-containing hormonal birth control or medicines that prevent blood clots.

Do not drive or operate hazardous machinery if you have confusion or trouble thinking during treatment with AYVAKIT.

The most common side effects of AYVAKIT in people with ISM include: swelling around your eyes, dizziness, swelling of your arms and legs, and flushing.

Your healthcare provider may change your dose, temporarily stop, or permanently stop treatment with AYVAKIT if you develop certain side effects. AYVAKIT may cause fertility problems in females and males. Talk to your healthcare provider if this is a concern for you.

These are not all of the possible side effects of AYVAKIT. Call your doctor for medical advice about side effects. You are encouraged to report side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

Please click here to see the full Prescribing Information and Patient Information for AYVAKIT.

INDICATION & IMPORTANT SAFETY INFORMATION

AYVAKIT® (avapritinib) may cause serious side effects, including:

Cognitive effects. Cognitive side effects can happen during treatment with AYVAKIT and can be severe. Tell your healthcare provider if you develop any new or worsening cognitive symptoms including forgetfulness, confusion, getting lost, trouble thinking, drowsiness, trouble staying awake (somnolence),

INDICATION & IMPORTANT SAFETY INFORMATION

Warning: AYVAKIT® (avapritinib) may cause serious side effects, including cognitive effects, skin sensitivity to sunlight (photosensitivity), harm to your unborn baby.

INDICATION & IMPORTANT SAFETY INFORMATION

Warning: AYVAKIT® (avapritinib) may cause serious side effects, including cognitive effects, skin sensitivity to sunlight (photosensitivity), harm to your unborn baby.

INDICATION

WHAT IS AYVAKIT® (avapritinib)?

AYVAKIT® (avapritinib) is a prescription medicine used to treat adults with indolent systemic mastocytosis (ISM). AYVAKIT is not recommended in people with low platelet counts (less than 50 X 109/L). It is not known if AYVAKIT is safe and effective in children.

IMPORTANT SAFETY INFORMATION

AYVAKIT® (avapritinib) may cause serious side effects, including:

Cognitive effects. Cognitive side effects can happen during treatment with AYVAKIT and can be severe. Tell your healthcare provider if you develop any new or worsening cognitive symptoms including forgetfulness, confusion, getting lost, trouble thinking, drowsiness, trouble staying awake (somnolence), word finding problems, seeing objects or hearing things that are not there (hallucinations), or a change in mood or behavior.

Skin sensitivity to sunlight (photosensitivity). Your skin may be sensitive to the sun or other forms of light (photosensitivity) during treatment with AYVAKIT. Avoid or limit exposure to direct sunlight, sunlamps, and other sources of ultraviolet radiation during treatment and for 1 week after stopping treatment with AYVAKIT. Use sunscreen or wear clothes that cover your skin if you need to be out in the sun.

Before taking AYVAKIT, tell your healthcare provider about all of your medical conditions, including if you:

  • history of bulging or weakening of a blood vessel wall (aneurysm) or bleeding in your brain
  • have a history of stroke within the last year
  • have low platelet counts
  • have or have had liver problems
  • are pregnant or plan to become pregnant. AYVAKIT can cause harm to your unborn baby
  • Females who are able to become pregnant: Your healthcare provider should do a pregnancy test before you start AYVAKIT. You should use effective birth control (contraception) during treatment with AYVAKIT and for 6 weeks after the final dose of AYVAKIT. Talk to your healthcare provider about birth control methods that may be right for you. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with AYVAKIT.
  • Males with female partners who are able to become pregnant should use effective birth control (contraception) during treatment and for 6 weeks after the final dose of AYVAKIT.
  • are breastfeeding or plan to breastfeed. It is not known if AYVAKIT passes into your breast milk. Do not breastfeed during treatment with AYVAKIT and for at least 2 weeks after the final dose of AYVAKIT. Talk to your healthcare provider about the best way to feed your baby during this time

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. AYVAKIT may affect the way other medicines work, and certain other medicines may affect how AYVAKIT works. Especially tell your healthcare provider if you take estrogen-containing hormonal birth control or medicines that prevent blood clots.

Do not drive or operate hazardous machinery if you have confusion or trouble thinking during treatment with AYVAKIT.

The most common side effects of AYVAKIT in people with ISM include: swelling around your eyes, dizziness, swelling of your arms and legs, and flushing.

Your healthcare provider may change your dose, temporarily stop, or permanently stop treatment with AYVAKIT if you develop certain side effects. AYVAKIT may cause fertility problems in females and males. Talk to your healthcare provider if this is a concern for you.

These are not all of the possible side effects of AYVAKIT. Call your doctor for medical advice about side effects. You are encouraged to report side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

Please click here to see the full Prescribing Information and Patient Information for AYVAKIT.