Libtayo (cemiplimab)
Patient Assistance Program Guide — Sanofi Patient Connection
Do You Qualify?
Income
Up to $75,300 for a single person
Insurance
Uninsured, underinsured, or Medicare patients who lack coverage for the medication.
Residency
U.S. resident with a valid address
Income Limits (500% FPL)
Income threshold for Libtayo/Oncology is typically set at 500% FPL.
Based on 2025 HHS Federal Poverty Level guidelines.
# Getting Libtayo (Cemiplimab) at No Cost Through Sanofi Patient Connection
Who Qualifies for the Sanofi Patient Connection?
If you have been prescribed Libtayo (cemiplimab) and cannot afford it, you may be able to get it at no cost through the Sanofi Patient Connection program. This program is open to patients who are uninsured, underinsured, or enrolled in Medicare and lack adequate coverage for Libtayo. For a single-person household, your annual income must be at or below $75,300 to qualify. Household income limits increase based on family size. If you meet the income and insurance requirements, Sanofi may provide Libtayo free of charge. This guide walks you through every step so you know exactly what to do and what to expect.
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About Libtayo (Cemiplimab)
Libtayo (cemiplimab) is an injectable biologic medication made by Sanofi and Regeneron. It belongs to a class of drugs called PD-1 inhibitors, which work by interacting with the immune system. Libtayo has received FDA approval for the treatment of cutaneous squamous cell carcinoma (CSCC), basal cell carcinoma (BCC), and non-small cell lung cancer (NSCLC). As a biologic and oncology drug, Libtayo carries a very high list price — often tens of thousands of dollars per treatment cycle — making it unaffordable for many patients without insurance coverage or financial assistance. There are currently no FDA-approved biosimilar versions of Libtayo available.
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Income Eligibility: Full Breakdown
Sanofi Patient Connection uses income thresholds set at approximately 500% of the Federal Poverty Level (FPL). The limits below apply to your total gross household income:
| Household Size | Maximum Annual Income |
|---|---|
| 1 person | $75,300 |
| 2 persons | $102,200 |
| 3 persons | $129,100 |
| 4 persons | $156,000 |
For households larger than four people, limits continue to increase. Contact the program directly at (888) 847-4877 to ask about your specific household size.
Income is typically verified using your most recent federal tax return, your last three months of pay stubs, or a W-2 form. If your income has changed significantly since last year — for example, due to job loss or reduced hours — you may be able to use current pay stubs rather than a prior-year return.
If your income is above the listed limits, you may still have options. Ask the program representative whether any exceptions or alternative tiers apply to your situation. You should also review the alternatives listed later in this guide.
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Insurance Requirements Explained
Your insurance status plays a major role in whether you qualify. Here is how different situations are handled:
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Step-by-Step: How to Apply
Follow these steps to apply for free Libtayo through Sanofi Patient Connection:
1. Gather your documents before you start. You will need: proof of income (tax return, W-2, or three months of pay stubs), a completed application form, a valid prescription from your healthcare provider, and signatures from both you and your prescriber.
2. Choose your application method. You can apply online, by phone, or by fax.
- Online: Visit https://www.sanofipatientconnection.com to complete and submit your application electronically.
- Phone: Call (888) 847-4877 to apply with the help of a program representative. Representatives can guide you through the process and answer eligibility questions.
- Fax: Submit your completed paperwork to (888) 847-1797.
3. Have your prescriber complete their portion. Your doctor or their office staff must sign the application. Many practices are familiar with this process — ask your oncology nurse or care coordinator to help.
4. Submit all documents together. Incomplete applications take longer to process. Make sure every required item is included before submitting.
5. Wait for confirmation. The program will contact you or your prescriber's office with an eligibility decision.
6. Your prescriber's office receives the medication. Once approved, Libtayo is shipped directly to your prescriber or infusion center — not to your home.
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What to Expect: Timeline and Delivery
Processing times are not publicly listed for this program, so ask a representative at (888) 847-4877 for a current estimate when you apply. Once approved, Libtayo is shipped directly to your prescriber's office or infusion center. You do not need to pick up or handle the medication yourself — your care team will administer it during your scheduled appointments.
Enrollment in the program is not permanent. Reauthorization is required every year. Before your annual renewal date, your prescriber's office will typically need to resubmit income documentation and an updated prescription. Mark your calendar so this does not cause a gap in your treatment.
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Alternatives If You Don't Qualify
If you do not meet the requirements for Sanofi Patient Connection, here are other options to explore:
1. Biosimilars: There are currently no FDA-approved biosimilar versions of Libtayo (cemiplimab). This option is not available at this time.
2. Savings card for insured patients: If you have commercial insurance, Sanofi offers the Libtayo Surround savings program, which may reduce your out-of-pocket costs. Learn more at https://www.libtayo.com/libtayo-surround.
3. State Pharmaceutical Assistance Programs (SPAPs): Many states run their own drug assistance programs, particularly for seniors and people with disabilities. Search for your state's program through your state health department or benefits office.
4. NeedyMeds.org: This free, nonprofit database lists hundreds of patient assistance programs, co-pay cards, and disease-specific funds. Visit https://www.needymeds.org or call their helpline to search for additional support options that fit your situation.
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*This guide is for informational purposes only and does not constitute medical or legal advice. Eligibility determinations are made solely by Sanofi / Regeneron. Program terms may change — verify current requirements at [https://www.libtayo.com/patient-support](https://www.libtayo.com/patient-support) before applying.*
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Documents You'll Need
If You Don't Qualify for the Assistance Program
Manufacturer Savings Card (for insured patients)
Sanofi / Regeneron offers a savings card that may reduce your out-of-pocket cost if you have commercial insurance. Ask your prescriber or pharmacist for current savings card details.
Common Questions
Yes. Medicare patients who lack adequate coverage for Libtayo under their Part D plan may qualify for the Sanofi Patient Connection program. Call (888) 847-4877 to confirm whether your specific Medicare plan and coverage gap make you eligible.
Sanofi has not published a standard processing time for this program. Once you apply, ask a program representative for a current estimate. Submitting a complete application with all required documents — including your prescriber's signature and proof of income — will help avoid delays.
No. If you are approved, Libtayo is shipped directly to your prescriber's office or infusion center. You will receive it during your scheduled treatment appointments. You do not need to arrange for pickup or handle the shipment yourself.
You must reapply every year to continue receiving Libtayo through this program. Your prescriber's office will typically need to submit updated income documentation and a new prescription. Plan ahead so there is no gap between your current approval and your renewal.
You can call the program at (888) 847-4877 to ask whether any exceptions apply in your case. If you do not qualify, consider checking the Libtayo Surround savings card at https://www.libtayo.com/libtayo-surround if you have insurance, or searching NeedyMeds.org for other assistance programs that may cover the gap.
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