Dupixent Lawsuit Attorneys in Pittsburgh

We Can Bring a Claim Against Big Pharma for You

The use of prescription drug Dupixent (generic form dupilumab) has been linked to an increased risk of cutaneous T-cell lymphoma (CTCL). If you used this prescription drug for asthma or another health condition and were later diagnosed with CTCL, you could have the grounds to file an injury claim against the Big Pharma corporations that designed, manufactured, and marketed the drug. Let our highly experienced dangerous drug attorneys of Robert Peirce & Associates, P.C. in Pittsburgh help. While you take care of yourself, we can take care of every part of your case, even if it goes to litigation.

Why do so many people in Pennsylvania trust our attorneys?

• We have secured hundreds of millions of dollarsin settlements and verdicts for past clients.
• We are often featured in nationwide news and media for our incredible casework.
• We are trusted by our peers and highly praised by past clients.
• We have decades of total legal experience with an intentional focus on difficult injury claims.

Get real trial experience by your side. Call our Pittsburgh Dupixent lawyers at (844) 383-0565 and request a FREE case review.

What is Dupixent?

Dupixent or dupilumab is a prescription drug that is most often prescribed to treat:

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

The drug is typically injected by a medical professional during a scheduled appointment. It works by binding to certain receptors and blocking proteins that can cause or worsen inflammation, such as the inflammation that triggers or worsens asthma in the airways. If you received an injectable medication to treat your asthma, eczema, or another inflammation-related health problem, your doctor might have prescribed or used Dupixent or dupilumab.

Does Dupixent Cause T-Cell Lymphoma?

Dupixent has been linked to T-cell lymphoma, especially cutaneous T-cell lymphoma (CTCL). This specific form of cancer causes rashes, lesions, and tumors throughout the body, most notably on the skin. Even if treatment is provided, CTCL can be extremely dangerous and cause permanent symptoms or health complications, like all forms of cancer.

Common symptoms of CTCL include:

• Red rashes
• Scaly skin
• Skin plaques
• Swollen or painful lymph nodes
• Rapid or unusual weight loss
• Fatigue and exhaustion

Studies Link Dupixent to T-Cell Lymphoma

Several recent studies have shown a concerning link between Dupixent and T-cell lymphoma or the worsening of this form of cancer.

1. In 2024, one study found that Dupixent users had a 300% higher risk of receiving a CTCL diagnosis than non-users.
2. Another 2024 study determined the increased risk was closer to 350%.
3. In 2025, another study estimated that the increased CTCL risk was 450%; however, that study estimated that using Dupixent could cause a 1,400% increased risk for CTCL or NK-cell lymphoma, a type of cancer that was not considered in most prior studies.

Can You File a Dupixent Claim?

At Robert Peirce & Associates, P.C., our trial attorneys are standing by to help potential clients determine if they have the grounds to start legal action after using Dupixent. You might be able to demand various forms of compensation, such as financial recoveries related to past and future medical bills, lost wages, pain, suffering, and reduced life expectancy. If you have any questions about your eligibility, call (844) 383-0565.

You could be eligible to file a Dupixent lawsuit with our help if:

• You used prescription Dupixent or dupilumab at least once;
• You were later diagnosed with T-cell lymphoma or CTCL; and,
• You required medical care after receiving your diagnosis.

When you work with our team, we can check your eligibility, including how much time you have left to file a claim. A statute of limitations could jeopardize your claim if you take too long to take legal action, so reach out now.

Holding Big Pharma Accountable for Dupixent

Dupixent lawsuits are already forming against the two main manufacturers of Dupixent, including:

• Sanofi
• Regeneron Pharmaceuticals

Both companies have been accused of failing to warn patients and doctors about Dupixent’s apparent link to T-cell lymphoma. While the drug’s packaging does include a list of potential side effects, it never mentions T-cell lymphoma or CTCL. As the arguments say, either the companies knew about the risk and didn’t disclose it, or the companies didn’t do their due diligence when testing Dupixent during trials.

Furthermore, strict product liability laws could apply to Dupixent claims. Using this legal rule, product makers can be held liable for any harm caused by their products, regardless of negligence.

Get More Information About Dupixent Claims Today

You shouldn’t go against Sanofi, Regeneron Pharmaceuticals, or any Big Pharma company on your own. If you or a loved one were diagnosed with CTCL after using Dupixent, start your path to demand recovery by coming to Robert Peirce & Associates, P.C. in Pittsburgh. Our Dupixent lawsuit attorneys have the experience, resources, and tenacious nature you need to confidently pursue justice and compensation, just like you deserve.

Let’s get started now. Call (844) 383-0565 and schedule a no-cost, no-obligation case evaluation.

Studies for More Information About Dupixent & CTCL

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