Tepezza Hearing Loss Lawsuit Updates
Tepezza Hearing Loss MDL Grows to 273 Cases Amid Steady Filings
The multidistrict litigation (MDL 3090) concerning hearing loss and related injuries allegedly caused by the thyroid eye disease drug Tepezza continues its steady growth. In November 2025, one new case was added, bringing the total number of pending lawsuits to 273. While the current pace of monthly filings remains modest, the consistent accumulation of claims suggests that further cases are likely as patient and physician awareness of the alleged risks continues to increase. The litigation remains active before Chief Judge Rebecca R. Pallmeyer in the Northern District of Illinois.
Steady Growth and Adjusted Deadlines in Tepezza Hearing Loss Litigation
The Tepezza multidistrict litigation (MDL) has increased to 270 pending cases, adding 10 new lawsuits since last month. The court has granted a 45-day extension for expert deposition deadlines, which subsequently delays summary judgment motions and other pretrial milestones. Despite these procedural adjustments, the schedule for bellwether trials remains unchanged. The first trial is set for June 2026, with subsequent trials to follow in August, September, and November of that year.
Tepezza Litigation Timeline Extended: First Trials Pushed to Mid-2026
The Tepezza multidistrict litigation is now operating under a revised schedule that delays key pretrial deadlines and bellwether trials into mid-to-late 2026. Plaintiffs' expert depositions will take place from August 25 to September 19, 2025, followed by defense expert discovery through October 17. Rule 702 motions on expert admissibility are expected to be fully briefed by January 9, 2026, with oral arguments the week of January 19 and rulings by February 9. Summary judgment motions follow in February and March, with decisions possibly by May 2026. The first bellwether trial is scheduled for June 8, 2026, with three more in August, September, and November. A global settlement is unlikely before these trials conclude
Nevada Woman Sues Horizon Therapeutics Over Permanent Hearing Loss Allegedly Caused by Tepezza
A woman from Pahrump, Nevada, has filed a lawsuit against Horizon Therapeutics and its corporate successors. She alleges she sustained permanent hearing loss and tinnitus following Tepezza infusions prescribed for thyroid eye disease. The plaintiff began treatment in July 2023, before Tepezza's label was updated to warn about the risk of severe hearing impairment or recommend auditory monitoring. The lawsuit claims the absence of these warnings at the time of her treatment contributed to her permanent injuries.
About The Tepezza Hearing Loss Lawsuit
Dozens of lawsuits have been filed against drug manufacturer Horizon Therapeutics regarding their medication Tepezza (teprotumumab-trbw). The drug is used to treat thyroid eye disease (TED), a condition associated with the autoimmune disorder Grave’s disease. TED can cause eye discomfort, pain, swelling, vision damage, and even blindness in severe cases.
Lawsuits state Tepezza caused patients to develop irreversible hearing loss, a side effect its manufacturer is accused of downplaying. Because of this alleged lack of transparency, those who took Tepezza for relief from debilitating vision problems are now facing the life-altering reality of hearing loss. Affected patients are filing lawsuits in the pursuit of justice and compensation, which courts have decided to consolidate into multidistrict litigation (MDL). This is good news for individuals affected by Tepezza, who can now join together to fight to hold Horizon Therapeutics accountable.
If you or a loved one were harmed by taking Tepezza, you may be feeling devastated and overwhelmed. It’s important to understand that you have legal rights and may be eligible to file a lawsuit against Horizon Therapeutics. In this article, you’ll learn about prequalifying injuries and how to take the first steps toward justice today.
The Dangers of Tepezza
Tepezza’s approval in 2020 was a light in the dark for patients suffering from thyroid eye disease (TED). Many viewed the drug, which is given to patients via infusion, as the key to freedom from the debilitating eye problems associated with TED. Tepezza works by blocking insulin-like growth factor 1 receptor (IGF-1R), a protein found on the surface of human cells that contributes to the disease.
Sadly, these hopes were soon shattered when droves of patients began experiencing serious hearing problems like tinnitus, hypersensitivity to sounds, partial and total hearing loss, and more. For many affected patients, these side effects are permanent, leaving victims to endure the heartbreaking reality of lifelong hearing impairment.
In addition to hearing damage, the FDA associates Tepezza with side effects like:
- Muscle spasms
- Nausea
- Hair loss
- Diarrhea
- Fatigue
- High blood sugar
- Dry skin
- Change in taste
- Headache
- Infusion reactions
- Worsening of inflammatory bowel disease (IBD)
What Is The Focus Of The Lawsuit?
Documentation revealed that Horizon Therapeutics appears to have been aware of Tepezza’s potential to affect hearing, sparking a wave of lawsuits across the country. Initial drug trials showed that hearing loss affected around 10% of patients taking Tepezza, but recent research showed this figure might be concerningly low; a study by the Endocrine Society revealed that the rate of patients who suffered hearing loss might be as high as 65%. Thousands of patients have taken Tepezza, leaving many at risk of serious side effects.
Plaintiffs have accused Horizon Therapeutics of endangering the health of patients by:
- Neglecting to perform adequate safety testing on the medication
- Failing to educate patients on the risks of hearing loss associated with the drug
Lawsuits focus on these allegations as plaintiffs fight to hold Horizon Therapeutics accountable for their pain and suffering.
Who Is The Lawsuit For?
The Tepezza hearing loss lawsuit is for any patient who was administered Tepezza (teprotumumab-trbw) and went on to suffer from hearing-related side effects. With the help of their attorneys, patients should be ready to compile evidence documenting their injuries, like medical records, personal statements, and prescription details. Proof of costs related to the injury, including medical bills and receipts, is also helpful in proving the financial impact.
Who May Qualify For The Tepezza Lawsuit?
To join the Tepezza lawsuit, patients must meet a number of requirements. While every case is different and each person should consult an attorney to determine whether they qualify, common factors determining qualification include:
- You must have received a Tepezza or teprotumumab-trbw infusion.
- You must have suffered permanent hearing loss because of Tepezza
Qualifying hearing-related side effects include:
- Persistent hearing loss or deafness
- Hypoacusis (partial loss of hearing)
- Hyperacusis (hypersensitivity to sounds)
- Tinnitus (ringing in the ears)
- Autophony (the perception of one’s own voice as loud or echoing)
- Muffled hearing
- Plugged ear sensation
- Eustachian tube dysfunction (ETD)
Additionally, other injuries that may prequalify you for the Tepezza lawsuit are:
- Infusion reactions
- Worsening of inflammatory bowel disease
- High blood sugar
- Muscle spasms
- Hair loss
- Diarrhea
- Fatigue
- Dry skin
- Change in taste
- Headache
- Subjective hearing loss
Do I Have to Pay for an Attorney?
If you are considering exercising your legal rights after being harmed by Tepezza, you may be concerned about the cost of securing legal representation. Fortunately, most lawyers who work on MDL cases do not require payment up front. Instead, your lawyer is paid a percentage of your compensation if you win your case. This is called working on a contingency fee basis, and it makes hiring an attorney accessible regardless of financial limitations. Your attorney can answer any questions you have about legal fees and how they are paid.
Lawsuit Time Limits
Factors like what state you live in, when you discovered your hearing loss, and more will determine the deadline to file your claim. This is called the statute of limitations, and an attorney can help you determine which deadlines apply to you.
Lawyers are ready to speak with you about whether you may qualify for the Tepezza hearing loss lawsuit. Fill out the form at the top of the page today to connect with an attorney in the OCA network who can help you begin pursuing the compensation you deserve.
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