Cathy Hartney, Jennifer Romolo, Kristin Johnson, Ashley Levernez, Debra Flaska, Pratibha Prince, Ashleigh Bohlman, and Vincenta Wolfe, on behalf of themselves and all others similarly situated v. Zoetis, Inc.

District Court, D. New Jersey·Decided July 22, 2026·No. 2:24-cv-09698·Unknown

Opinion

NOT FOR PUBLICATION

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF NEW JERSEY CATHY HARTNEY, JENNIFER ROMOLO, KRISTIN JOHNSON, ASHLEY LEVERNEZ, DEBRA FLASKA, Civil Action No. 24-09698 (SDW) (AME) PRATIBHA PRINCE, ASHLEIGH BOHLMAN, and VINCENTA WOLFE, on OPINION behalf of themselves and all others similarly situated, July 22, 2026 Plaintiffs, v. ZOETIS, INC., Defendant. WIGENTON, District Judge. Before this Court is Defendant Zoetis, Inc.’s (“Defendant”) Motion to Dismiss Plaintiffs’ Fourth Amended Class Action Complaint (D.E. 46 (“FAC”)) pursuant to Federal Rules of Civil Procedure (“Rule”) 12(b)(6). (D.E. 50 (“Motion”).) Jurisdiction is proper pursuant to 28 U.S.C. §§ 1332(d)(2)-(6) and 1367. Venue is proper pursuant to 28 U.S.C. § 1391(b). This Court considers this matter without oral argument pursuant to Federal Rule of Civil Procedure 78. For the reasons stated herein, Defendant’s Motion is GRANTED, and the Fourth Amended Complaint is hereby DISMISSED WITH PREJUDICE. I. FACTUAL BACKGROUND AND PROCEDURAL HISTORY This putative class action arises from the administration of Librela, a monoclonal antibody marketed by Defendant for the control of osteoarthritis‑related pain in dogs. Eight named Plaintiffs bring claims on behalf of themselves and a proposed nationwide class, alleging that Defendant misrepresented Librela’s safety, failed to warn veterinarians and pet owners about severe adverse events, and breached various statutory and common‑law duties. Plaintiffs’ causes of action include failure‑to‑warn, design defect, breach of implied warranties, consumer fraud violations under several state statutes, and negligence.

A. Factual History1 a. Librela and Reported Adverse Events Librela is a long-acting canine monoclonal antibody (Bedinvetmab) administered by monthly injection for the management of osteoarthritis in dogs. (FAC ¶¶ 1–2.) According to the FAC, thousands of adverse events have been reported following Librela injections, including neurological injuries such as ataxia, convulsions, and proprioception abnormalities; musculoskeletal injuries such as lameness, muscle tremors, and paresis; hepatic and pancreatic injuries characterized by elevated liver enzymes or pancreatitis; and death. (Id. ¶ 1.) There is no antidote for the drug once administered. (Id. ¶ 2.) Plaintiffs allege that Defendant mislead consumers and prescribing veterinarians about these dangers by affirmatively misrepresenting Librela as being safe for dogs. (Id. ¶ 3.) Plaintiffs assert that the product’s warning label, as well as advertising and promotional materials, including direct‑to‑consumer marketing, contained false and misleading statements and failed to adequately

warn that Librela could cause the adverse events described above. (Id. ¶ 4.) According to Plaintiffs, veterinarians throughout the United States, including those who prescribed or administered Librela to Plaintiffs’ pets, relied on such alleged misrepresentations and informed Plaintiffs and members of the class that Librela was safe for its intended use and carried the risk

1 The facts set forth in this section are drawn from the Fourth Amended Complaint and are presumed true solely for purposes of this Motion. See Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). of only minor side effects. (Id. ¶¶ 5–6.) Specifically, the FAC states that Defendant’s marketing campaign for Librela, which centered around the slogan “More Days of Play,” led consumers and veterinarians to believe that the product was safe and effective for its intended use. (Id. ¶¶ 7–9.) Defendant allegedly continued to tout Librela’s safety even after an FDA‑mandated label

change in January 2025, which added certain warnings. (Id. ¶ 14.) Plaintiffs further allege that adequate warnings would have altered both veterinarians’ prescribing decisions and pet owners’ consent, and that Defendant’s misrepresentations caused them to purchase Librela injections they otherwise would not have. (Id. ¶¶ 18–19.) The cumulative effect of these misrepresentations has allegedly resulted in millions of dollars in costs for pet owners, including the price of the injections, veterinary expenses, and in some cases the loss of their dogs. (Id. ¶ 22.) b. Allegations of the Named Plaintiffs The FAC details the experiences of eight named plaintiffs from various states. (See generally id. ¶¶ 23–118.) On or around May 16, 2024, Cathy Hartney, a resident of Florida, consented to a Librela injection for her dog Jake. (Id. ¶ 24.) Prior to the administration of Librela

to Jake, Plaintiff Hartney’s veterinarian informed Plaintiff that Librela was safe for use in dogs and had no known risks of significant side effects or adverse reactions. (Id. ¶ 25.) Relying on her veterinarian’s representations, which Plaintiffs allege were based on Librela’s labeling, marketing and promotional materials, Plaintiff Hartney consented to having Librela administered to her dog. (Id. ¶¶ 25–26.) Within days of the administration of Librela, Jake developed increased thirst, decreased appetite, limited mobility, and worsening pain; he ultimately had to be euthanized. (Id. ¶¶ 29–30.) Plaintiff Hartney alleges that she spent money on the injection and subsequent veterinary care and would not have consented to Librela had she known the risks. (Id. ¶¶ 28–34.) On or around May 23, 2024, Jennifer Romolo, an Illinois resident, consented to a Librela injection for her dog Blue. (Id. ¶ 36.) She similarly alleges that, prior to the administration of Librela to Blue, she relied on her veterinarian’s representations that Librela was safe for use in dogs, which were based on Librela’s labeling, marketing and promotional materials. (Id. ¶¶ 37– 38.) After the injection, Blue experienced decreased appetite, increased thirst, vomiting, lethargy,

anemia, and a rash. (Id. ¶ 41.) Plaintiff Romolo contends that she incurred veterinary expenses and emotional distress and would not have chosen Librela if Defendant had not represented that Librela was safe and effective for use in dogs. (Id. ¶¶ 39–45.) From February 2024 through September 2024, Kristin Johnson, a resident of Texas, administered Librela to her two golden retrievers, Dixie and Jack, over several months. (Id. ¶ 47.) Likewise, she alleges that she relied on her veterinarian’s representations that Librela was safe for use in dogs and had no known risks of significant side effects or adverse reactions. (Id. ¶¶ 48–49.) She contends that one dog developed deafness and bowel control issues and the other suffered ataxia, hind leg weakness, and growths. (Id. ¶¶ 52–53.) Despite treatment, Jack ultimately died. (Id. ¶ 54.) Plaintiff Johnson asserts that she paid for multiple injections, incurred veterinary costs,

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Cathy Hartney, Jennifer Romolo, Kristin Johnson, Ashley Levernez, Debra Flaska, Pratibha Prince, Ashleigh Bohlman, and Vincenta Wolfe, on behalf of themselves and all others similarly situated v. Zoetis, Inc., (D.N.J. 2026).

Cathy Hartney, Jennifer Romolo, Kristin Johnson, Ashley Levernez, Debra Flaska, Pratibha Prince, Ashleigh Bohlman, and Vincenta Wolfe, on behalf of themselves and all others similarly situated v. Zoetis, Inc. (Cathy Hartney, Jennifer Romolo, Kristin Johnson, Ashley Levernez, Debra Flaska, Pratibha Prince, Ashleigh Bohlman, and Vincenta Wolfe, on behalf of themselves and all others similarly situated v. Zoetis, Inc.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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