People's Justice

California · Claims for harm linked to Dupixent

Claims for harm linked to Dupixent in California

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Filing deadline2 years from discovery of injuryCal. Code Civ. Proc. § 335.1

Deadlines vary with the facts of each case. A lawyer can confirm yours.

Updated

01 · Your filing deadline

What is the deadline in California?

California: 2 years for personal injury (Cal. Code Civ. Proc. § 335.1). Discovery rule applies — the statute begins when the plaintiff discovers or reasonably should have discovered the injury and its cause. A lawyer can confirm yours.

2 years from discovery of injury

Source: Cal. Code Civ. Proc. § 335.1

Deadlines vary; a lawyer can confirm yours. An older diagnosis or a past filing window does not, by itself, establish whether you have a claim.

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A lawyer can check which filing rules apply to your circumstances.

02 · Where cases are heard

Where would my case be heard?

California leads nationally in Dupixent prescriptions due to its large population and extensive dermatology infrastructure. On June 4, 2026, the JPML centralized federal Dupixent CTCL cases in MDL No. 3180 in the District of New Jersey before Judge Zahid N. Quraishi. UCLA Health, Stanford, and UCSF all operate specialized cutaneous lymphoma clinics that provide diagnostic pathways for patients developing CTCL on Dupixent.

California federal cases are filed in the Central District (Los Angeles), Northern District (San Francisco), Eastern District (Sacramento), or Southern District (San Diego). The Central District of California has the heaviest pharmaceutical litigation docket nationally. State court filings are also viable through California's JCCP (Judicial Council Coordination Proceedings) process, which can consolidate state cases before a single judge. California does not cap non-economic damages in product liability cases. Sanofi has significant operations in the state, establishing personal jurisdiction.

How this works nationally

For the overall process and updates, read the Claims for harm linked to Dupixent overview. This page covers the local information available for California.

What happens when I check?

You answer a few short questions about what happened. If you send them, your answers are kept on file. If a participating law firm takes these cases, it may contact you. People's Justice is not a law firm.

Live in California? Read what applies in your state.

Register your interest. If a participating law firm takes these cases, it may contact you.

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Sources

  1. Cal. Code Civ. Proc. § 335.1