How to File a Dupixent Skin Cancer Lawsuit

– Updated on October 15, 2025

When considering a Dupixent lawsuit, it’s important to understand the steps involved so you feel confident and prepared. Filing a claim is not only about seeking financial compensation; it’s also about holding manufacturers accountable and protecting others from potential harm. While the legal process can seem overwhelming, breaking it down into clear steps makes it more manageable.

Below is an outline of how to file a Dupixent skin cancer lawsuit.

Gather Evidence and Documentation

The first step in pursuing a Dupixent lawsuit is to collect all relevant evidence. Medical records are especially critical, as they can establish the connection between your health condition and the medication. Save prescriptions, doctor’s notes, test results, and any communication with healthcare providers regarding your treatment and side effects. Photos of physical symptoms may also strengthen your case.

Your attorney can gather any other evidence you need.

Connect With an Attorney

Once your evidence is organized, contact our team so we can connect you with a qualified Dupixent skin cancer attorney from our law firm partners near you. Working with a lawyer who focuses on defective drug or dangerous medication cases ensures you have the legal knowledge and resources needed to pursue compensation effectively.

Check If You Qualify

Not every case will meet the necessary criteria, so your attorney will review your records and circumstances to determine whether you are eligible to file a Dupixent lawsuit. This evaluation is crucial in setting realistic expectations.

Decide on the Best Legal Path

Depending on how many lawsuits are filed nationwide, your attorney may advise pursuing an individual lawsuit or joining a multidistrict litigation (MDL) if one is formed in the future. An MDL can streamline the process when cases share similar facts and injuries.

Focus on Recovery While Your Attorney Leads

Finally, your attorney will manage the legal work, deadlines, and negotiations on your behalf. This allows you to focus on healing and moving forward while knowing your case is in capable hands.

Do I Qualify for the Dupixent Lawsuit?

If the following apply to you, we recommend calling our firm and learning more about whether you might qualify to file a Dupixent lawsuit:

• A doctor or dermatologist diagnosed you with atopic dermatitis (eczema), asthma, chronic rhinosinusitis with nasal polyps, eosinophilic esophagitis, prurigo nodularis, or chronic obstructive pulmonary disease (COPD).
• A doctor prescribed Dupixent for one of the above conditions.
• A dermatologist diagnosed you with cutaneous T-cell lymphoma (CTCL) or a subtype after you had been taking Dupixent for at least a month.
• A doctor or dermatologist did not diagnose you with CTCL, Hodgkin’s lymphoma, non-Hodgkin’s lymphoma, leukemia, non-follicular lymphoma, or skin cancer prior to you starting your Dupixent regimen.

Subtypes of CTCL include:

• Folliculotropic MF (FMF)
• Granulomatous slack skin (GSS)/granulomatous mycosis fungoides
• Lymphomatoid papulosis (LyP)
• Mycosis fungoides (MF)
• Mycosis fungoides variants
• Pagetoid reticulosis (PR)
• Primary cutaneous acral CD8+ T-cell lymphoma
• Primary cutaneous anaplastic large cell lymphoma (C-ALCL)
• Primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorder
• Primary cutaneous CD8+ aggressive epidermotropic cytotoxic T-cell lymphoma
• Primary cutaneous CD30+ lymphoproliferative disorders
• Primary cutaneous gamma delta T-cell lymphoma (PCGD-TCL)
• Primary cutaneous peripheral T-cell lymphoma, not otherwise specified (PTCL, NOS)
• Sézary syndrome
• Subcutaneous panniculitis-like T-cell lymphoma (SPTCL)

We encourage you to call us even if you aren’t sure whether you are eligible. An attorney can help you determine whether you qualify for the Dupixent lawsuit.

What Is the Dupixent Lawsuit?

Plaintiffs and their lawyers allege that the makers of Dupixent failed to warn doctors and their patients about the increased risk of CTCL. Several studies, including one published in the Journal of the American Academy of Dermatology, found an increased risk of developing cutaneous T-cell lymphoma when using Dupixent. These lawsuits allege that the manufacturers knew or should have known of this risk (and of over 100 complaints made regarding CTCL to the U.S. Food and Drug Administration as of September 2025) and proceeded to put profit over patients by selling Dupixent despite the risk.

What Can I Recover from the Dupixent Lawsuit?

What you can recover from the Dupixent lawsuit depends on the specifics of your case, including the severity of your injuries, the costs you’ve incurred, and how your condition has impacted your daily life. Generally, plaintiffs may be entitled to compensation for the following losses:

Medical Expenses

You may be reimbursed for past and future medical bills related to Dupixent side effects, including hospital stays, surgeries, prescriptions, and rehabilitation. You may also recover the costs of ongoing treatment and long-term care if your condition requires it.

Lost Wages and Reduced Earning Capacity

You may receive compensation for wages lost due to time missed at work while undergoing medical treatment or recovery. You may also be awarded damages for a diminished ability to earn a living if your injuries prevent you from returning to your previous job or career.

Pain and Suffering

You may recover damages for the physical pain and discomfort caused by Dupixent complications. You may also receive compensation for the emotional distress associated with your condition, such as anxiety, depression, or the loss of enjoyment of life.

Out-of-Pocket Costs

You may be reimbursed for expenses such as travel to and from medical appointments. You may also recover the costs of hiring in-home care or making accessibility modifications to your home.

Who Are the Defendants in the Dupixent Lawsuit?

The defendants in the Dupixent lawsuit are Sanofi Genzyme and Regeneron Pharmaceuticals.

Get Help With Your Dupixent Lawsuit Today

Filing a Dupixent lawsuit can feel overwhelming, especially if you’re undergoing cancer treatment or caring for a loved one who is ill. You don’t have to go through the process alone. We work with trusted law firm partners nationwide and can connect you with experienced attorneys in your area. Call The Goldwater Law Firm for a free consultation to learn more about your legal options and take the first step toward protecting your rights.