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TUKYSA Resources and Support

Download the resources and support that are available to help you throughout treatment.

Sample from the TUKYSA® (tucatinib) tablets Patient Brochure

TUKYSA Brochure

Is your guide to treatment and what you can expect from TUKYSA, including possible side effects

Sample page from the TUKYSA® (tucatinib) tablets Treatment Tracker document

TUKYSA Treatment Tracker

Helps you keep track of your dosing plan and take notes about how you are feeling

Sample from the TUKYSA® (tucatinib) tablets Treatment Tracker Calendar Pages resource

TUKYSA Treatment Tracker Calendar Pages

Use these additional calendar pages to help you stay on your dosing plan

TUKYSA® (tucatinib) tablets Important Facts document

TUKYSA Important Facts

A brief summary of important information about TUKYSA

Sample from the Share Your Experience with TUKYSA® (tucatinib) tablets document

Share Your Experience With TUKYSA

Provides information on how to share your story and personal experience with TUKYSA

Frequently Asked Questions (FAQs)

Answers to frequently asked questions about TUKYSA (tucatinib).
Sharon, who lives with HER2+ MBC, holding a quote board that reads, “I make plans because it keeps me looking forward. – Sharon, Living with HER2+ MBC”Sharon, who lives with HER2+ MBC, holding a quote board that reads, “I make plans because it keeps me looking forward. – Sharon, Living with HER2+ MBC”

Advocacy Groups

There are many local, community, and national advocacy organizations available to help support people with breast cancer and their families. They each offer a range of services, including education and counseling. There are also groups that offer legal services and employment advice.

Please note that the information that follows has been provided by each of the listed organizations. Seagen is not responsible for their content, and inclusion on this website is not intended as an endorsement of the organization or the services offered.


  • logo

    Dedicated to providing the most reliable, complete, and up-to-date information about breast cancer.
  • FORCE (Facing Our Risk of Cancer Empowered) logo

    FORCE (Facing Our Risk of Cancer Empowered)

    Provides support, education, and awareness to help those facing a range of hereditary and related cancers know their healthcare options and make informed decisions.
  • Living Beyond Breast Cancer® logo

    Living Beyond Breast Cancer (LBBC)

    Delivers trusted medical and psychosocial information on early stage and metastatic breast cancer and connects individuals with a caring community of support.
  • Sisters Network® Inc. logo

    Sisters Network® Inc. (SNI)

    The only national African American breast cancer survivorship organization in the United States and a leading voice in the fight against breast cancer in the African American community.
  • Tigerlily Foundation. Beauty. Strength. Transformation. Logo

    Tigerlily Foundation

    A national breast cancer foundation that provides education, awareness, advocacy, and hands-on support to young women (15-45)—before, during, and after breast cancer--as well as endeavoring to end health disparities of age, stage, and color.
  • YSC - Young Survival Coalition logo

    Young Survival Coalition (YSC)

    Strengthens the community, addresses the unique needs, amplifies the voice, and improves the quality of life of young adults affected by breast cancer.


  • CANCERCare® logo


    CancerCare provides free professional support services and information to help people manage the emotional, practical, and financial challenges of cancer.
  • Cancer Support Community logo

    Cancer Support Community

    The Cancer Support Community (CSC), including its Gilda’s Club affiliates, is a global non-profit network delivering cutting-edge research, providing free support services to patients and families—in person, over the phone, and online, and leading policy solutions.
  • Leslie’s Week logo

    Leslie’s Week

    A stage 4 metastatic breast cancer nonprofit that provides vacations away from cancer for stage 4 breast cancer women and their families.
  • SHARE. Dedicated Experienced Support for women facing breast or ovarian cancer logo


    Educates, supports, and empowers women affected by breast, ovarian, or metastatic breast cancer, with a special focus on medically underserved communities.
  • Sharsheret logo


    Sharsheret, Hebrew for chain, is the only national organization supporting Jewish women and families, and those of all backgrounds, who are facing breast and ovarian cancer or are at an increased genetic risk.
  • Susan G. Komen® logo

    Susan G. Komen

    Susan G. Komen’s mission is to save lives by meeting the most critical needs in our communities and investing in breakthrough research to prevent and cure breast cancer.
  • Unite for HER. Helping to Empower & Restore logo

    Unite for HER

    Unite for HER’s mission is to enrich the health and well-being of those diagnosed with breast and ovarian cancers by funding and delivering Integrative and Supportive Therapies that help empower and restore your body, mind, and soul. Our vision is that every one of our members will feel the support of a loving community, and will have access to comprehensive education, services, and tools that enrich their health and well-being.


  • | find a trial that’s right for you logo

    A nonprofit service that encourages individuals affected by breast cancer to consider clinical trials as a routine option for care, by helping people interested in studies to learn about and find trials that are right for them.
  • Dr. Susan Love Foundation for breast cancer research logo

    Dr. Susan Love Foundation

    Performs and facilitates innovative and collaborative research while translating science to engage the public as informed partners.
  • METAvivor Metastatic Breast Cancer Research, Support and Awareness logo


    Dedicated to advancing research for those diagnosed with metastatic stage 4 breast cancer. The organization funds vital research to help improve the longevity and quality of life for MBC patients. METAvivor also provides support for those living with MBC as well as education, advocacy, and awareness.
For additional resources that educate and support metastatic breast cancer patients, please visit the Metastatic Breast Cancer Alliance to learn about their member network of breast cancer organizations.

Important Safety Information

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What are the possible side effects of TUKYSA?

TUKYSA may cause serious side effects, including:

  • Diarrhea (watery, loose, or frequent stools) is common and can sometimes be severe. Tell your healthcare provider if you have a change in your bowel movements or severe diarrhea. Severe diarrhea can cause a loss of too much body fluids (dehydration), low blood pressure, kidney problems, and death. Your healthcare provider may prescribe medicines to treat your diarrhea during treatment with TUKYSA.
  • Liver Problems, including severe cases. Your healthcare provider will test your blood to check your liver function before starting and every 3 weeks during treatment with TUKYSA, or as needed. Tell your healthcare provider right away if you have any signs and symptoms of liver problems including itching, yellowing of your skin or eyes, dark or brown urine (tea-colored), pain in the right upper stomach area (abdomen), feeling very tired, decreased appetite, or bleeding or bruising more easily than normal.

The most common side effects of TUKYSA in combination with trastuzumab and capecitabine in adults with HER2-positive breast cancer include:

  • diarrhea
  • rash, redness, pain, swelling, or blisters on the palms of your hands or soles of your feet
  • nausea
  • increased liver function blood tests
  • vomiting
  • mouth sores (stomatitis)
  • decreased appetite
  • a low number of red blood cells (anemia)
  • rash

Your healthcare provider may change your dose of TUKYSA, temporarily stop, or permanently stop treatment with TUKYSA if you have certain side effects.

TUKYSA may cause fertility problems in males and females, which may affect the ability to have children. Talk to your healthcare provider if you have concerns about fertility.

These are not all the possible side effects of TUKYSA. Discuss side effects with your healthcare provider. You may report negative side effects to the FDA at 1-800-FDA-1088 or

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What should I tell my healthcare provider before taking TUKYSA?

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

  • have liver problems.
  • are pregnant or plan to become pregnant. TUKYSA can harm your unborn baby.
    Females who can become pregnant: Your healthcare provider will do a pregnancy test before you start taking TUKYSA. Use effective birth control (contraception) during TUKYSA treatment and for 1 week after the last dose of TUKYSA. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with TUKYSA.

    Males with a female partner who can get pregnant:
    Use effective birth control during TUKYSA treatment and for 1 week after the last dose of TUKYSA.
  • are breastfeeding (nursing) or plan to breastfeed. Do not breastfeed during treatment with TUKYSA and for 1 week after the last dose of TUKYSA.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. TUKYSA may affect the way your other medicines work, and other medicines may affect the way TUKYSA works. Keep a list of all the medicines you take and show it to your healthcare provider and pharmacist every time you get a new medicine.



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What is TUKYSA?

TUKYSA is a prescription medicine used with the medicines trastuzumab and capecitabine to treat adults with human epidermal growth factor receptor-2 (HER2) positive breast cancer that has spread to other parts of the body such as the brain (metastatic), or that cannot be removed by surgery, and who have received one or more anti-HER2 breast cancer treatments.

It is not known if TUKYSA is safe and effective in children.

Please see Important Facts about TUKYSA.