Ninon Luce Leone Guellerin

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Biography

“When I joined Weitz & Luxenberg, it felt like all of the pieces had come together - the kind of law I want to practice and the people I want to help. It’s incredibly important we give people a voice and let them tell their stories.”Ninon Guellerin Kaye is a member of our Drug and Medical Device Litigation practice group. Since earning her Master of Laws, she is immersed in litigation focusing on helping women harmed by the contraceptive Depo-Provera. Her role in helping those harmed by defective drugs and medical devices expands as new litigations come to light.“From the very beginning, I’ve been thrilled to be here. I was fortunate to meet with co-founder Arthur Luxenberg in the spring of 2024. We discussed some of the litigations Weitz & Luxenberg was overseeing, and I knew this was where I wanted to be,” Ms. Kaye remembers.“To be part of the legal team headed by Ellen Relkin is a privilege. She is one of the most impassioned litigators I’ve met - fighting on behalf of people who have been harmed by defective pharmaceuticals and devices. The work we do helps thousands of people every day.”Equalizing the Playing Field for Plaintiffs“In law school, I had an opportunity to work for corporate law firms. I understand how major companies make decisions, how warnings get minimized, and how accountability can be evaded,” says Ms. Kaye.Ms. Kaye continues, “When I learned of studies involving Depo-Provera and the many women who have been harmed, I was hooked. I knew I wanted to help these women whose voices and concerns had been dismissed and disregarded.”Depo-Provera and Brain TumorsDepo-Provera is an injectable contraceptive. Weitz & Luxenberg is leading the litigation against the manufacturer, Pfizer. One of our main concerns is that this medication can lead to brain tumors called meningiomas.“I’ve talked to many of our clients living with irreparable damage caused by these tumors. Mostly, they feel betrayed. They’ve lost trust,” sympathizes Ms. Kaye.“They want to be acknowledged. And we are doing everything legally possible to secure justice for these women.”Compassion Is Key“Justice is not only about compensation, but also about acknowledgment, dignity, and change. When I initially contact a client, compassion is the most important thing. In the case of Depo-Provera, thousands of women feel they have been ignored for so long. They weren’t being taken seriously,” points out Ms. Kaye.“I want to give them a voice,” she emphasizes.Legal Experience with W&LMs. Kaye joined Weitz & Luxenberg in June 2024. Although she had studied internationally, she ultimately chose to move to the United States. Her conversation with Mr. Luxenberg ultimately led to her initial appointment at W&L, as a law clerk.During college that she became drawn to product liability. Then, after reading a study about Depo-Provera, Ms. Kaye realized the people she wanted to help were those harmed by the actions of large corporations.Her Educational Background Is a Triple ThreatMs. Kaye is licensed to practice law in the state of New York.She earned her Master of Laws from Georgetown University Law Center in Washington, D.C., her Master of Laws from Notre Dame of Australia in Sydney, and her Master in International and European Business Law from the Catholic Institute of Paris in France.She was awarded a Bachelor of Laws in Private Law and Political Science from Catholic University of Lille, also in France.On the Personal SideOutside the office, Ms. Kaye enjoys doing Pilates and playing pickleball and tennis. She also loves reading and traveling. Although she says she’s a terrible cook, she enjoys teaching her in-laws how to cook French food.As a fun fact, Ms. Kaye loved not only playing French Scrabble in middle school but also competing. She won numerous competitions, and now enjoys channeling that drive into helping win cases on behalf of her clients.

Areas of Practice (1)

  • Defective Drugs and Devices

Education & Credentials

University Attended:
Catholic University of Lille, B.A., 2021; Catholic Institute of Paris, M.A., 2022; Notre Dame of Australia, M.A., 2023; Georgetown University Law Center, M.A., 2024
Year of First Admission:
2025
Admission:
2025, New York
ISLN:
1001717026

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