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Accepting reviewsReviewed Sep 23, 2026

Dupixent (cutaneous T-cell lymphoma)

A new federal case group examines whether Dupixent, an eczema and asthma drug, may be connected to a rare skin lymphoma or delayed its diagnosis. The litigation is at an early stage.

Case group
MDL 3180
Court
D. New Jersey
Centralized
Jun 4, 2026
Pending cases
35Sep 1, 2026

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  1. Step 1. Your experience
  2. Step 2. Important dates
  3. Step 3. Contact & consent
Have you been prescribed Dupixent?
Have you been diagnosed with cutaneous T-cell lymphoma (e.g., mycosis fungoides)?
Was the lymphoma diagnosed after you started Dupixent?
Was the diagnosis confirmed by a skin biopsy?
Do you already have a lawyer for this matter?
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Where things stand

  1. Jun 4, 2026JPML centralized Dupixent CTCL cases against Regeneron, Sanofi and Genzyme.

Records that usually help

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  • Pharmacy/specialty pharmacy fill history
  • Dermatology records before and during Dupixent
  • Skin biopsy and pathology reports
  • Oncology/hematology records

About filing deadlines

Deadlines to file a claim vary by state and situation, and some may already have passed. Only a licensed attorney can tell you whether a deadline applies to you. Submitting here does not stop any deadline.

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