State litigation guide · New Jersey

Tepezza Hearing Loss Lawsuit in New Jersey

Time limits apply in New Jersey. Find out if you still qualify.

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Statute of limitations — New Jersey

The New Jersey Products Liability Act (N.J.S.A. 2A:58C) imposes a 2-year statute of limitations for product liability claims. The discovery rule applies — the clock starts when the plaintiff knew or reasonably should have known about the hearing injury and its connection to Tepezza treatment. New Jersey has a 10-year statute of repose for product liability, but since Tepezza was first sold in 2020, this deadline is not yet applicable.

2 years from discovery of Tepezza-related hearing injury

Filing venue

Where to File in New Jersey

Federal Tepezza cases from New Jersey are transferred to the MDL in the Northern District of Illinois (MDL No. 3079). New Jersey state court claims may proceed in Bergen, Essex, or Middlesex County Superior Courts. New Jersey is one of the most experienced pharmaceutical litigation jurisdictions in the country, having hosted the Elmiron MDL (2973) and numerous other drug injury proceedings. The state applies a modified Daubert standard for expert testimony under N.J.R.E. 702.

New Jersey data

Exposure in New Jersey

New Jersey population — state ranks among the highest per capita for endocrinology specialists and thyroid disease treatment centers

9.3 million

Source: U.S. Census Bureau 2024

Primary type of hearing loss associated with Tepezza — caused by damage to cochlear hair cells deprived of IGF-1R survival signaling that the drug blocks

Sensorineural

Source: PMC / National Library of Medicine

Date Amgen completed $27.8 billion acquisition of Horizon Therapeutics, assuming all Tepezza product liabilities

December 2023

Source: SEC filings

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