Dupixent lawsuits are increasing, and a growing body of research may explain why. If you have been diagnosed with cancer after taking this medication for eczema, asthma, or other conditions, you may be asking, “Is Dupixent linked to cancer?”
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Key Takeaways
- Dupixent, a prescription injection used to treat chronic inflammatory conditions, has been linked to certain types of lymphoma.
- Symptoms of these cancers include itchy, possibly discolored rash, raised, scaly patches of skin, thickening of the soles of the feet or palms, hair loss, lumps on the skin that may split open, swollen lymph nodes, and lighter skin patches.
- Individuals who were prescribed Dupixent, took it for at least a month, and were diagnosed after the fact with certain cancers may be eligible for compensation.
- There are no settlements or trials for Dupixent related cancers at this time, however, a motion was filed in February 2026 to create a multidistrict litigation for Dupixent lawsuits, and there is a hearing scheduled for May 2026 to address this.
At Ankin Law, we are closely monitoring reports of CTCL in patients who have used Dupixent. If you or a loved one received a cancer diagnosis following Dupixent treatment, understanding your legal rights is the first step toward justice. Call our attorneys at 312-600-0000.
What Do Studies Say About the Dupixent Cancer Risk?
Since 2022, multiple studies have found a possible link between Dupixent and an increased risk of rare blood cancers, particularly Cutaneous T-Cell Lymphoma (CTCL). Studies published in 2024 and 2025 have reported a significantly higher risk of T-cell and natural killer (NK)-cell lymphomas among some patients treated with Dupixent, including one large cohort study that found a 4.58-fold increased risk compared to matched controls. Additionally, a European study discovered that asthma patients taking Dupixent had a 79% higher chance of lymphoma. In March 2025, the FDA took the significant step of adding Dupixent to its official list of drugs with “Potential Signals of Serious Risk.” As of May 2026, there is no warning about the increased cancer risk on the FDA-approved Dupixent label, however.
What makes these cases especially alarming is how Dupixent may be hiding the cancer. Research indicates that by suppressing the immune response that causes inflammation, Dupixent may inadvertently:
- Mask the symptoms of pre-existing cancer: Early-stage CTCL often presents as red, itchy patches that look identical to eczema.
- Fuel “unmasking” or progression: By suppressing the Th2 immune response, the drug may allow malignant T-cells to proliferate unchecked.
What Is Dupixent Used For?
Dupixent is a prescription injection used to treat chronic inflammatory conditions caused by certain overreactive immune responses. This includes moderate to severe eczema, certain types of asthma, chronic rhinosinusitis, and more. It is administered every 1 to 4 weeks via subcutaneous injection.
Dupixent works by blocking specific signaling proteins that cause inflammation, rather than suppressing the entire immune system. It is a maintenance treatment and not for emergency use.
What Are the Symptoms of CTCL Related to Dupixent?
While CTCL usually appears on the skin as a rash or scaly patches, it is not a type of skin cancer. It is a non-Hodgkin lymphoma that typically grows slowly and impacts the skin. It can enter the blood stream or spread to lymph nodes. As such, symptoms may vary, however, if you are taking Dupixent, some common symptoms of CTCL include:
- Itchy unusual rash that may be discolored (brown, gray, pink or red)
- Hair loss
- Lumps on the skin that may break open
- Swollen lymph nodes
- Thickening of the skin on the palms or soles of the feet
- Lighter patches of skin
- Scaly patches of skin
The most common types of CTCL are Mycosis fungoides and Sézary syndrome. These make up about 60%-70% of CTCL cases. Mycosis fungoides typically starts as a skin rash, and Sézary syndrome, which is typically less common, affects the blood and skin.
Who Qualifies for a Dupixent Lawsuit?
Patients who developed certain cancers after using Dupixent may be eligible to pursue a product liability claim. While eligibility depends on individual circumstances, you may qualify if you meet the following criteria:
- Were prescribed Dupixent and took it for at least a month
- Were diagnosed with a form of CTCL
- Were not previously diagnosed with a form of Hodgkin or Non-Hodgkin lymphoma, leukemia, or non-follicular lymphoma before your first dose of Dupixent
An experienced product liability attorney can evaluate your case and help determine your legal options.
What Evidence Will Help My Claim?
Evidence that can help your Dupixent cancer claim include receipts for the medication, bills and statements for medical treatment, medical records, and physician notes. Having these things handy can help your attorney determine your eligibility.
How Do You File a Dupixent Lawsuit?
The first step in filing a Dupixent lawsuit involves a consultation with an experienced attorney. Next, with the help of your attorney, gather any evidence relevant to your case. If you qualify, your attorney will file a lawsuit on your behalf. Your lawyer will then negotiate for a fair settlement, or, should a fair settlement be unreachable, take your case to court.
Since litigation is in its early stages for Dupixent lawsuits, there are currently no settlements or trials relating to these cases, and no class action lawsuits have been filed at this time. However, if enough cases arise, this may proceed into a multidistrict litigation (MDL). This would combine multiple cases with similar backgrounds to streamline the legal process.
February 2026 brought to light a motion that was filed to create an MDL for Dupixent lawsuits, opening the door for victims to receive compensation for their Dupixent-related cancer. There is a hearing scheduled in May 2026 to address this issue.
Frequently Asked Questions About Dupixent Cancer Lawsuits
What if I Don’t Have Enough Money for an Attorney?
In most cases, product liability attorneys operate on a contingency fee structure and offer free consultations. This enables you to seek legal support without worrying about up-front costs and lawyer fees. Your attorney will take a pre-agreed upon percentage of your settlement if they win your case. If they do not successfully collect compensation for you, they do not get paid.
How Long Do I Have to File My Dupixent Cancer Case?
In a product liability case, you typically have two years from the date of the injury or when the injury was discovered to file a lawsuit. Not filing within this timeframe may result in you missing out on the compensation you need to move forward with your life. It is important to consult an attorney as soon as possible to ensure your case gets filed in a timely manner.
Can I File a Lawsuit on My Minor Child’s Behalf?
In Illinois, you can file a lawsuit on behalf of your child if your child is under 18 years old, as minors do not have the legal capacity to file a lawsuit on their own. As a parent or legal guardian, you can act as the representative of your child in their case.
