Dupixent Lawsuits for Lymphoma Skin Cancer
Dupixent Lawsuits for T-Cell Lymphoma Cancers
mctlaw is investigating legal claims for people who developed a rare skin cancer after using the drug Dupixent. This specific cancer is called cutaneous T-cell lymphoma (CTCL). Our lawyers are looking into whether the makers of the drug, Sanofi and Regeneron, failed to warn patients and doctors about this risk.
What is Dupixent?
Dupixent is a common injection used to treat long-term health issues like eczema, asthma, and nasal polyps. It works by calming down parts of the immune system that cause swelling and itching. However, new research and thousands of reports to the FDA suggest a possible link between the drug and skin cancer.
FDA Adds Dupixent to Serious Risk List
In March 2025, the FDA officially added Dupixent to its list of drugs with “Potential Signals of Serious Risk”. This happened because the government noticed a high number of reports involving T-cell lymphoma in patients taking the drug.
The FDA tracks problems reported by patients and doctors. When they looked at the data for Dupixent, they found concerning numbers:
- As of May 2025, there were over 181,000 reports of health problems related to Dupixent.
- The number of reports for this specific skin cancer (CTCL) was about 30 times higher for people using Dupixent than for people using other drugs.
- Many people were diagnosed with skin cancer less than a year after they started taking Dupixent.
- The reports show that Dupixent users are getting this cancer at a much younger age than usual.
- Because of these high numbers, the FDA is now doing a formal review to see if the drug’s warning label needs to be changed.
The Danger of Dupixent “Masking” Cancer
Experts believe the drug might “mask” or hide the cancer. Cutaneous T-cell lymphoma often starts out looking like a red, itchy rash, much like severe eczema.
- Because Dupixent is very good at clearing up rashes, it can make the skin look healthy on the outside.
- This can lead doctors to believe the patient is getting better, even while the cancer grows hidden underneath.
- This “masking” can cause a dangerous delay in getting the right treatment for cancer.
- Other reports suggest the drug might actually make the cancer grow faster than it normally would.
Free Case Evaluation for Dupixent
If serious injury or death occurred after using Dupixent, a legal claim may be possible.
mctlaw offers free case evaluations. The team will review the facts, explain potential options, and help determine the next steps.
Call, chat, or fill out our online form below to get started.
Signs of Cutaneous T-Cell Lymphoma from Dupixent
You should talk to a doctor if you used Dupixent and noticed red scaly patches, thick hard spots, or severe itching that does not go away. Other warning signs include skin that changes color, losing hair in the area of the patches, or feeling lumps and swelling in your neck, armpits, or groin.
Who Can File a Dupixent Lawsuit?
Our legal team is helping people who meet these requirements:
- You used Dupixent for eczema, asthma, or another condition.
- You took the medication for at least three months.
- You were later diagnosed with T-cell lymphoma, mycosis fungoides, or Sézary syndrome.
- You did not have this cancer before you started using Dupixent.
Why Choose mctlaw for a Dupixent Skin Cancer Lawsuit
A lawsuit can help you pay for the high costs of cancer treatment. This includes money for medical bills, lost pay from missing work, and the pain you have gone through.
The attorneys at mctlaw have years of experience taking on big medical companies. We work on a “contingency fee” basis. This means we do not charge you any money upfront, and you only pay us if we win your case and get you money.
There is a limited amount of time to file a claim, so it is important to act quickly. Contact us today for a free review of your case.
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Content Reviewed by Michael Cowgill – Product Liability Lawyer
Michael Cowgill is an experienced attorney in the product liability division at mctlaw. Michael focuses his practice on defective medical devices such as recalled metal-on-metal hips and wrongful death lawsuits involving Kratom. Mr. Cowgill graduated Magna Cum Laude from Lewis & Clark Law School in Portland, OR. He volunteers as a high school mentor with a program for underprivileged youths interested in pursuing a future legal career.
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