Did Dupixent Delay Your T-Cell Lymphoma Diagnosis?

Patients prescribed Dupixent are now filing lawsuits after later being diagnosed with Cutaneous T-Cell Lymphoma (CTCL) and other serious T-cell lymphomas.

Others report severe eye complications, including keratitis, blepharitis, and permanent vision injuries linked to Dupixent use.

You may qualify for compensation if you developed one of these conditions after using Dupixent.
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Why Are People Filing Dupixent Lawsuits?

Dupixent (dupilumab) is a biologic medication commonly prescribed to treat moderate-to-severe eczema, asthma, chronic sinus conditions, and other inflammatory diseases.

Recent research and FDA safety monitoring have raised concerns that Dupixent may be linked to Cutaneous T-Cell Lymphoma (CTCL), Mycosis Fungoides, Sézary Syndrome, and other T-cell malignancies in certain patients.

Many patients prescribed Dupixent believed they were treating severe eczema or chronic skin inflammation. Later, some were diagnosed with forms of lymphoma after symptoms worsened, changed, or failed to improve despite ongoing treatment.

Current Dupixent lawsuits generally focus on allegations involving:

  • Failure to adequately warn patients about potential lymphoma risks

  • Delayed diagnosis of CTCL and related malignancies

  • The “unmasking” of underlying lymphoma during treatment

  • Long-term use of Dupixent before diagnosis

  • Serious physical, emotional, and financial harm following diagnosis

Many patients spent years believing they were treating severe eczema before later learning they may have been living with an underlying lymphoma. By the time some individuals received a CTCL diagnosis, the disease had already progressed significantly.

“Patients trust medications like Dupixent to improve their health, not potentially delay the diagnosis of a serious disease like lymphoma. People deserve answers, transparency, and accountability when safety concerns emerge involving medications used for long-term treatment.”

Ted Oshman
Attorney at The Oshman Firm

How to Start Your Dupixent Claim

Getting started only takes 3 simple steps:

1

Share Your Diagnosis

Tell us about your Dupixent use and medical condition.

2

Find Out If You May Qualify

Receive a free review of your potential claim.

3

Move Forward With Your Claim

If eligible, you can pursue compensation for your injuries and losses.

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Why the FDA Is Monitoring Dupixent

Growing safety concerns surrounding Dupixent have led to increased scrutiny from researchers, physicians, and federal regulators.

Dupixent works by targeting inflammatory pathways involving IL-4 and IL-13, which are associated with eczema and other immune-related conditions.

Concerns About Delayed CTCL Diagnosis

Some researchers believe Dupixent may alter or suppress visible symptoms associated with Cutaneous T-Cell Lymphoma (CTCL), potentially delaying diagnosis while the underlying cancer continues progressing. This concern is sometimes referred to as an “unmasking” effect.

Diagnoses Reported After Dupixent Treatment

In some reported cases, patients initially treated for severe eczema were later diagnosed with:

  • Cutaneous T-Cell Lymphoma (CTCL)

  • Mycosis Fungoides

  • Sézary Syndrome

Some patients reportedly experienced worsening symptoms, changing skin lesions, or treatment-resistant flareups before receiving a lymphoma diagnosis.

Ongoing Research and Litigation

As additional research and litigation continue developing, concerns surrounding Dupixent-related lymphoma claims continue growing nationwide.

Red Flag Symptoms Linked to CTCL and Dupixent

Some patients later diagnosed with CTCL initially believed they were dealing with severe eczema or treatment-resistant dermatitis.

Potential warning signs may include:

  • Persistent skin patches or plaques

  • Severe itching that failed to improve with Dupixent

  • Thickened or discolored skin lesions

  • Tumors or mushroom-shaped skin growths

  • Swollen lymph nodes

  • Worsening skin symptoms despite ongoing treatment

  • Skin symptoms spreading to additional areas of the body

If you experienced these symptoms before receiving a CTCL diagnosis, contact our legal team for a free case evaluation.

Timeline of the Dupixent Litigation

2025

Federal litigation involving Dupixent and T-cell lymphoma claims continues growing as more patients come forward alleging delayed diagnoses and severe complications following treatment.

2024

Additional research and safety discussions surrounding Dupixent and CTCL continue drawing attention within the medical and legal communities.

2023

Researchers published findings examining potential associations between Dupixent use and Cutaneous T-Cell Lymphoma progression or “unmasking.”

Earlier Years

Many patients diagnosed with CTCL report years of treatment for severe eczema or inflammatory skin conditions before receiving a lymphoma diagnosis.

We will help bring justice for survivors.

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