Dupixent Lawsuit Attorneys

Call Now If You Used Dupixent & Got T-Cell Lymphoma

Did you use Dupixent (dupilumab) and then receive a cutaneous T-cell lymphoma (CTCL) diagnosis? The two events might be connected, and you might be able to demand compensation from the pharmaceutical companies behind Dupixent.

Symptoms of CTCL often include:

• Red rashes, scaly skin, and/or skin plaques
• Itching or chronic pain in the affected areas
• Swollen lymph nodes
• Unexpected or rapid weight loss
• Chronic fatigue
• Tumors or nodules, especially close to the skin
• Discolored patches of skin

Find out if you qualify to file a Dupixent claim or lawsuit, which might become part of a mass tort, by calling Kershaw Talley Barlow today. Our nationally recognized team of attorneys and scientists help clients nationwide with cases filed against Big Pharma and other corporations that sell unsafe products that put everyday patients and consumers in danger. You can count on us to give you the strength to seek justice and fair compensation.

Call us at (916) 520-6639 and request a free consultation to discuss your options after taking Dupixent and being diagnosed with CTCL.

What is Dupixent?

Dupixent (dupilumab) is a prescription drug meant to treat several conditions, such as:

• Eczema
• Asthma
• Chronic obstructive pulmonary disease (COPD)
• Chronic rhinosinusitis nasal polyps

The injectable drug binds to receptors to block proteins that are linked to inflammation. If you have struggled with inflammation-related health conditions, your doctor might have prescribed or recommended Dupixent to you.

Dupixent Linked to T-Cell Lymphoma

Although many patients have used Dupixent without incident, others have had concerning side effects and adverse events, including those that are not listed in the drug’s warning labels and use instructions. Perhaps most concerning, some medical experts and drug safety groups have noticed a potential link between Dupixent use and increased risk of developing cutaneous T-cell lymphoma. This type of cancer usually manifests as rashes, lesions, and tumors throughout the body, often close to the skin. CTCL, like all forms of cancer, can be extremely dangerous and permanently jeopardize the immune system.

Several recent and comprehensive studies (*see below) have linked Dupixent to CTCL or worsened CTCL symptoms. One study in 2024 found that people who used Dupixent had a 300% higher risk of getting CTCL than people who did not use it. Another study that year placed the risk increase at about 350%. More concerning still, another study in 2025 estimated that the average risk increase was 450%.

Who Can File a Dupixent Lawsuit?

You might be eligible to file a Dupixent lawsuit if:

• You used Dupixent or dupilumab after it was prescribed to you;
• You were later diagnosed with cutaneous T-cell lymphoma; and
• You have not missed your state’s statute of limitations (varies).

Call (916) 520-6639 or contact us online now to see if you are eligible to file a Dupixent lawsuit.

Who is Liable for Dupixent Injuries?

The two primary manufacturers and marketers of Dupixent are:

• Regeneron Pharmaceuticals
• Sanofi

Lawsuits have already been filed by people who have been diagnosed with cutaneous T-cell lymphoma after using Dupixent, and they have named both Big Pharma companies as the defendants. The lawsuits argue that the companies failed, and continue to fail, to warn patients and doctors alike about the potential risk of CTCL after using Dupixent. As many claimants have pointed out, the lengthy drug data provided to the Food and Drug Administration (FDA) about Dupixent doesn’t mention CTCL risk at all.

Even if the drug manufacturers didn’t know about the risk, the argument could be made that they reasonably should have known if more safety research had been conducted before introducing the drug to the market. Also, strict product liability laws might allow injured Dupixent users like you to file a claim against Sanofi and/or Regeneron.

Compensation in Dupixent CTCL Lawsuits

At Kershaw Talley Barlow, we take the time to understand every client’s losses and injuries, so we can pursue a fair and maximized amount of compensation. For your Dupixent lawsuit, we will want to understand how your life has been affected by your Dupixent prescription, including but not limited to the harm caused by cutaneous T-cell lymphoma.

Compensation that we might be able to demand in your Dupixent claim includes:

• Medical treatment costs, including long-term care related to cancer treatments
• Pain, suffering, and hardships caused by living with CTCL
• Lost wages and reduced income-earning capacity
• Wrongful death if you lost a loved one to CTCL

At this time, a class action lawsuit is not expected because each person who used Dupixent has been affected uniquely; however, a mass tort or multidistrict litigation (MDL) might be justified later. In any case, our Dupixent attorneys will be ready to fight for you.

Choose Kershaw Talley Barlow for Your Dupixent Claim

Bringing a claim against a Big Pharma company is never easy. If you’re not represented by a knowledgeable and experienced attorney, it can be downright intimidating. If you were diagnosed with cutaneous T-cell lymphoma after using Dupixent, give yourself the strength, knowledge, and support you need by coming to Kershaw Talley Barlow. From our office in Sacramento, California, we have helped clients nationwide with injury claims and lawsuits filed against drug manufacturers.

People trust their difficult cases with us because:

• We have recovered more than $1 billion in settlements and verdicts on behalf of injured plaintiffs nationwide.
• We have more than 100 years of combined legal experience with a focus on cases that go to court.
• We are nationally recognized for our deep scientific expertise and ability to apply rigorous scientific methods to strategically position your case.
• We have been featured many times in major news outlets and media, such as Forbes®, ABC News, and CBS News.
• We have numerous awards and recognitions, such as the HIPAA Seal of Compliance, Best Lawyers®, Super Lawyers®, and more.

You deserve world-class legal counsel. That’s what we deliver at Kershaw Talley Barlow.

To get a free case review with our Dupixent lawyers, call (916) 520-6639 at any time.

*More Information

• “Dupilumab and lymphoma risk among patients with asthma: a population-based cohort study” (published in National Library of Medicine)
• “Increased Risk of Cutaneous T-Cell Lymphoma Development after Dupilumab Use for Atopic Dermatitis” (published in Wiley Only Library)
• “Dupilumab therapy for atopic dermatitis is associated with increased risk of cutaneous T cell lymphoma: A retrospective cohort study” (published in National Library of Medicine)
• “Acceleration of cutaneous T-cell lymphoma following dupilumab administration” (published in National Library of Medicine)