There are a few financial assistance options for you to explore

Below are Independent Co-pay Assistance Foundations that may be able to help. You can also contact the Genentech Patient Foundation if you wish to discuss additional options.


Independent Co-pay Assistance Foundations may be able to help you

Independent Co-pay Assistance

An independent co-pay assistance foundation is a charitable organization providing financial assistance to patients with specific disease states, regardless of treatment. Patients who are commercially or publicly insured, including those covered by Medicare and Medicaid, can contact the foundations directly to request assistance. Eligibility requirements, all aspects of the application process, turnaround times, and the amount of assistance offered (if any) can vary by foundation.

These foundations may be able to help. Please check their websites for up-to-date information.

These organizations are independent of Genentech, and may require you to provide personal or financial information directly to the organization to enroll in their respective programs. Genentech cannot share any information you have provided to us.

Independent co-pay assistance foundations have their own rules for eligibility. We have no involvement or influence in independent foundation decision-making or eligibility criteria and do not know if a foundation will be able to help you. We can only refer you to a foundation that supports your disease state. This information is provided as a resource for you. We do not endorse or show preference for any particular foundation. The foundations in this list may not be the only ones that might be able to help you.


The Genentech Patient Foundation may be an option for you.

The Genentech Patient Foundation gives free PHESGO to people who have been prescribed this medicine and don't have insurance or who have financial concerns and meet certain eligibility criteria. 

You may be eligible if your insurance coverage and income match one of these situations:

  • Uninsured patients with incomes under $150,000
  • Insured patients without coverage for PHESGO with incomes under $150,000
  • Insured patients with coverage for a Genentech medicine:
    • With unaffordable out-of-pocket costs
    • Who have pursued other forms of financial assistance
    • With household size and income within certain guidelines

Genentech reserves the right to modify or discontinue the program at any time and to verify the accuracy of information submitted.

If you have any questions about the criteria or wish to discuss your options, please contact a Foundation Specialist at 888-941-3331 (Mon.–Fri., 6am–5pm PST).


  • Commercial insurance: An insurance plan you get from a private health insurance company. This can be insurance from your job, from a plan you bought yourself, or from a Health Insurance Marketplace (for example, from HealthCare.gov). Medicare and Medicaid are not considered commercial insurance. 

  • Public insurance: A health insurance plan you get from the federal or state government. This includes Medicare, Medicaid, TRICARE, and DoD/VA insurance.

  • For example, a household size of 1 with income of less than $75,000 may meet the criteria for assistance. Add $25,000 for each additional person in the household. There is no maximum number of people you may add.

Important Safety Information & Uses

What does PHESGO treat?

PHESGO® (pertuzumab, trastuzumab, and hyaluronidase-zzxf) is a prescription medicine approved for use in combination with chemotherapy for:

  • use prior to surgery (neoadjuvant treatment) in adults with HER2-positive, locally advanced, inflammatory, or early stage breast cancer (tumor is greater than 2 cm in diameter or node-positive). PHESGO should be used as part of a complete treatment regimen for early breast cancer. 
  • use after surgery (adjuvant treatment) in adults with HER2-positive early breast cancer that has a high likelihood of coming back.

PHESGO is a prescription medicine approved for use in combination with docetaxel in adults who have HER2-positive breast cancer that has spread to different parts of the body (metastatic) and who have not received anti-HER2 therapy or chemotherapy for metastatic breast cancer.

What should I know about side effects with PHESGO?

  • Not all people have serious side effects; however, side effects with PHESGO therapy are common. It is important to know what side effects may happen and what symptoms you should watch for
  • Your doctor may stop treatment if serious side effects happen. Be sure to contact your healthcare team right away if you have questions or are worried about any side effects

What are the most serious side effects of PHESGO?

PHESGO may cause heart problems, including those without symptoms (such as reduced heart function) and those with symptoms (such as congestive heart failure).

  • The risk for and seriousness of these heart problems are highest in people who received both PHESGO and a certain type of chemotherapy (anthracycline)
  • Your doctor will check for signs of heart problems before, during, and after treatment with PHESGO. Based on test results, your doctor may hold or discontinue treatment with PHESGO
  • Contact a healthcare professional immediately for any of the following: new onset or worsening shortness of breath, cough, swelling of the ankles/legs, swelling of the face, palpitations, weight gain of more than 5 pounds in 24 hours, dizziness or loss of consciousness

Receiving PHESGO during pregnancy can result in the death of an unborn baby and birth defects.

  • Birth control should be used while receiving PHESGO and for 7 months after your last dose of PHESGO. If you are a mother who is breastfeeding, you should talk with your doctor about either stopping breastfeeding or stopping PHESGO
  • If you think you may be pregnant, you should contact your healthcare provider immediately
  • If you are exposed to PHESGO during pregnancy, or become pregnant while receiving PHESGO or within 7 months following the last dose of PHESGO, you are encouraged to report PHESGO exposure to Genentech at 1-888-835-2555

PHESGO may cause serious lung problems.

  • Your doctor may check for signs of lung problems including:
    • Severe shortness of breath
    • Fluid in or around the lungs
    • Weakening of the valve between the heart and the lungs
    • Not enough oxygen in the body
    • Swelling of the lungs
    • Scarring of the lungs

Who should not receive PHESGO?

  • PHESGO should not be used in patients who are allergic to pertuzumab, trastuzumab, hyaluronidase, or to any of the ingredients in PHESGO

What are other possible serious side effects?

  • PHESGO may worsen low white blood cell counts caused by chemotherapy: Low white blood cell counts can be life threatening and were seen more often in patients receiving Herceptin® (trastuzumab) plus chemotherapy than in patients receiving chemotherapy alone. Your doctor may check for signs of low white blood cell counts when he or she examines you
  • PHESGO may cause administration-related reactions: PHESGO is given as an injection. The active ingredients in PHESGO have been associated with severe administration reactions, including hypersensitivity or anaphylaxis, which can be fatal. Talk to your doctor if you feel any symptoms. The most common symptoms include dizziness, nausea, chills, fever, vomiting, diarrhea, hives, swelling of the skin, breathing problems, or chest pain

What are the most common side effects?

The most common side effects of PHESGO when given with chemotherapy as part of an early breast cancer regimen are:

  • Hair Loss
  • Nausea
  • Diarrhea
  • Low levels of red blood cells
  • Weakness

The most common side effects of PHESGO when given with docetaxel for treatment of breast cancer that has spread to other parts of the body (metastatic) are:

  • Diarrhea
  • Hair loss
  • Low levels of white blood cells with or without fever
  • Nausea
  • Feeling tired
  • Rash
  • Damage to the nerves (numbness, tingling, pain in hands/feet)

You are encouraged to report side effects to Genentech and the FDA. You may report side effects to the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at 1-888-835-2555.

Talk to a healthcare professional for more information about the benefits and risks of PHESGO. 

Please see full Prescribing Information for additional Important Safety Information, including most serious side effects.

If you cannot afford your medication, visit genentech-access.com/patient for financial assistance information.