PHESGO

Indicated For

HER2-positive metastatic breast cancer

About This Medication

# Genentech Oncology Co-pay Assistance Program Patient Guide: How to Get PHESGO (pertuzumab / trastuzumab / hyaluronidase-zzfx) at Low or No Cost PHESGO is a prescription medication used to treat certain types of breast cancer, combining **pertuzumab**, **trastuzumab**, and **hyaluronidase-zzfx** for subcutaneous (under-the-skin) administration, offering a convenient alternative to IV infusions for eligible patients.[1][2] The **Genentech Oncology Co-pay Assistance Program** helps eligible patients with commercial insurance reduce out-of-pocket costs for PHESGO, potentially covering co-pays, co-insurance, or deductibles down to as little as $0 per fill.* This guide explains eligibility, application steps, and more to help you access treatment affordably. ## Who Qualifies for the Program? To qualify, you must meet these key criteria: - Have a **valid prescription** for PHESGO for an **FDA-approved indication**, such as HER2-positive breast cancer.[2][3] - Be **18 years or older**, or have a caregiver/legally authorized representative.[3] - Possess **commercial (private or non-governmental) insurance** only—no Medicare, Medicaid, Medicare Advantage, Medigap, TRICARE, Department of Defense, or VA programs.[1][2][4] *This is a co-pay assistance program, not free medication. It targets out-of-pocket costs for commercially insured patients. There are no specific income thresholds listed, making it accessible based primarily on insurance type and prescription validity rather than household income.*[1][2] ## About PHESGO PHESGO is a fixed-dose combination subcutaneous injection approved by the FDA for treating HER2-positive metastatic or early breast cancer in combination with other therapies. It allows for faster administration (about 5 minutes) compared to separate IV infusions of pertuzumab and trastuzumab, reducing clinic time. Common side effects include diarrhea, alopecia, nausea, and infusion reactions—discuss risks with your doctor. Always use under medical supervision for FDA-approved uses.[1][2] ## Income Eligibility Breakdown Unlike some programs, the Genentech Oncology Co-pay Assistance Program **does not have published income thresholds**. Eligibility focuses on insurance status and prescription validity, not financial need. Benefits may have annual or per-fill caps (details in Terms & Conditions).[1][2] | Eligibility Factor | Details | Notes | |--------------------|---------|-------| | **Income** | No specific thresholds | Open to all qualifying commercial insurance holders; benefit limits apply[1][2] | | **Age** | 18+ or with caregiver | Ensures patient or representative can manage program[3] | | **Prescription** | FDA-approved indication | Must be for PHESGO as prescribed by U.S. licensed physician[2][3] | | **Residency** | U.S. residents primarily | International options may exist[10] | Check full Terms & Conditions at enrollment for caps, like maximum annual assistance.[2] ## Insurance Requirements **Commercial insurance only**—private plans or employer-sponsored, excluding all government programs: - **Eligible**: Most private health plans, excluding government-reimbursed prescriptions.[1][4] - **Not Eligible**: Medicare (Parts A/B/D), Medicare Advantage, Medigap, Medicaid, TRICARE, DoD, VA.[1][2][4] If uninsured or government-insured, explore Genentech Patient Foundation (separate program, call 888-941-3331) or independent foundations.[5][9] ## Step-by-Step Application Process The program offers **multiple application methods** for flexibility:[1] 1. **Online**: Visit the PHESGO financial support tool at https://www.phesgo.com/financial-support/tool.html or CopayAssistanceNow.com. Complete enrollment form with patient info.[1][6] 2. **Phone**: Call **(855) 692-6729** (855-MY-COPAY), Mon-Fri 9am-8pm ET (except holidays). Staff guide you through eligibility and enrollment.[1][2] 3. **Provider Assistance**: Ask your doctor's office to enroll via My Patient Solutions or fax/text forms.[5] **Required Documents**: - Valid prescription for FDA-approved PHESGO use. - Insurance information (card, policy details). - Patient information (ID, contact).[1] Once approved, receive a benefit card with RxBIN, PCN, Group #, and Member ID for use at **participating pharmacies, physicians' offices, or hospitals**.[1][8] ## Timeline and Delivery - **Processing**: Enrollment is quick—often instant online/phone; full approval varies but aim for prompt start.[1] - **Delivery**: Fill prescription normally; program covers eligible costs at point-of-service. No direct shipment—use local providers.[1] - **Reauthorization**: **Required** periodically; recertify eligibility for refills to continue benefits.[program details] **Using Your Card**: Present at pharmacy/doctor—pay as little as $0* per fill. Track via CopayAssistanceNow.com.[8] ## Alternatives if Denied or Ineligible - **Genentech Patient Foundation**: For uninsured/underinsured; apply online/fax/text (888-941-3331). Requires Patient Consent and Prescriber forms; processed in 5 business days.[5][9] - **Independent Foundations**: Genentech supports copay foundations—ask your doctor or visit gene.com for options.[7] - **Patient Access Network (PAN) or CancerCare**: General copay help; check eligibility. - **Manufacturer Contact**: Call Genentech Access Solutions for coverage appeals or free drug options. - **No biosimilar alternatives** specified for PHESGO.[program details] ## Important Disclaimer This guide is for informational purposes only and based on publicly available program details as of last update. **Eligibility, benefits, and terms can change**—always verify with Genentech at (855) 692-6729 or official sites. Not medical advice; consult your healthcare provider for treatment decisions. Program not valid where prohibited by law. *Benefit as low as $0 subject to max assistance, pharmacy participation, and Terms & Conditions. Genentech reserves rights to modify/amend/terminate.[1][2] (Word count: 912)

Program information last verified: March 30, 2026