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2025 Litigation Update

Tepezza Lawsuit – Hearing Loss, Tinnitus & Permanent Damage

Thousands of patients treated for Thyroid Eye Disease are reporting irreversible hearing loss. If you were affected, you may be entitled to significant compensation.

Hearing Loss Claims
Tinnitus Compensation
Failure to Warn

Medical Alert: Recent studies show hearing damage from Tepezza may be permanent, contradictory to initial "temporary" claims. 65% of patients in a Stanford study reported hearing issues.

Why Are Patients Suing Horizon Therapeutics?

Tepezza (teprotumumab-trbw) was approved in 2020 as the first treatment for Thyroid Eye Disease (TED). While effective for eye symptoms, patients were told auditory side effects were temporary.

However, post-market studies revealed a different reality. The lawsuit alleges that Horizon Therapeutics failed to properly warn patients and doctors about the risk of permanent hearing loss and tinnitus, misrepresenting the drug's safety profile to boost sales.

Key Allegations:

  • Understating the severity of auditory side effects.
  • Concealing the risk of ototoxic (ear-damaging) properties.
  • Failure to recommend regular audiology monitoring.
  • Marketing the drug as having "reversible" side effects.

Injuries Linked to Tepezza

Patients often experience worsening symptoms after just a few infusions. Common injuries include:

Hearing Loss

  • Sensorineural Hearing Loss
  • Conductive Hearing Loss
  • Partial or Total Deafness
  • Muffled Hearing / Distortion

Auditory Issues

  • Tinnitus: Persistent ringing or buzzing.
  • Autophony: Hearing your own voice abnormally loud.
  • Hypoacusis: Reduced sensitivity to sound.
  • Ear Fullness: Sensation of pressure/plugging.

The Science: 2021 Stanford Study

A landmark study by Stanford University found alarming rates of hearing damage in Tepezza users:

  • 65% of patients developed hearing issues (vs. the 10% claimed in clinical trials).
  • Symptoms often persisted long after treatment ended.
  • The Endocrine Society (2022) confirmed hearing loss may be irreversible in many cases.

Internal analysis suggests the manufacturer knew about higher ototoxicity rates but failed to update safety labels promptly.

Potential Compensation

Hearing loss affects communication, employment, and mental health. Compensation aims to cover these life-altering impacts.

Medical Expenses

Costs for hearing aids ($2,000–$7,000+), cochlear implants, ENT visits, and audiology testing.

Quality of Life

Damages for social isolation, depression, anxiety, and lost enjoyment of life due to deafness.

Punitive Damages

Penalties against the manufacturer for concealing known risks from the public.

Estimated Settlements: Severe, permanent hearing loss cases are predicted to reach settlements of $150,000 to $500,000+.

Frequently Asked Questions

Do I qualify if my symptoms started mild?

Do I need old medical records?

How much does it cost to file?

Is there a time limit?

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