CooperSurgical IVF Egg and Embryo Solution Failures

Faulty freezing solution alleged to have destroyed eggs and embryos of over 120 UK families

Lieff Cabraser’s Fertility Practice Group is investigating reports of over 120 UK families’ eggs and embryos being damaged and destroyed, allegedly due to a defective freezing solution provided by CooperSurgical. CooperSurgical issued an urgent notice in February 2023, stating one lot of its freezing solution “may contain mislabeled vials” which “may impact the viability” of the eggs or embryos.

Contact us today

If your embryos were affected by CooperSurgical’s defective preservation solution, we urge you to talk to Women’s Health Lawyer and Lieff Cabraser partner Sarah London today about your rights and potential recovery.

You can call toll-free at 1 800 541-7358 or use the form below.

The information you provide will be held in the strictest confidence, and will help us hold CooperSurgical accountable for laboratory failures that resulted in destroyed embryos as well as significant physical and emotional distress.

    Fertility, IVF, and Embryo/Egg Loss Injuries

    Lieff Cabraser represents fertility patients who have been injured by cryogenic storage facilities, fertility clinics, genetic testing laboratories, and IVF supply manufacturers nationwide.

    In June 2021, plaintiffs won a $15 million verdict in the San Francisco Pacific Fertility Center cryogenic tank failure egg & embryo destruction lawsuit. The jury found the freezer tank manufacturer to be most at fault, though the clinic also shared some of the blame for the tragic losses. In the 2018 complaint, patients alleged the clinic destroyed or seriously damaged hundreds of cryogenically preserved eggs and embryos stored at its facility in San Francisco after liquid nitrogen depletion in one of its storage tanks.

    Lieff Cabraser currently represents families devastated by contaminated Natera preimplantation genetic tests. Because the genetic tests are performed on viable embryos after thawing and before implantation, seeking to confirm the presence or absence of serious birth defects and other illnesses, these faulty test results leave families with devastating losses and impaired future family planning.

    Our Team

    Hannah Lazarz
    Sarah R. London
    Tiseme Zegeye

    About Sarah R. London

    Lieff Cabraser partner Sarah London serves in lead roles in women’s health cases, including work as court-appointed Liaison Counsel and Interim Class Counsel in the federal class action filed on behalf of families in May 2018 against San Francisco’s Pacific Fertility Center over the Center’s March 2018 allegedly negligent destruction of hundreds of frozen eggs and embryos as a result of a leak in a cryogenic storage tank. Sarah also served in a leadership role in successful litigation recovering millions of dollars on behalf of women who suffered serious injuries due to complications from allegedly defective trans-vaginal surgical mesh.

    About Tiseme Zegeye

    A partner in Lieff Cabraser’s San Francisco office, Tiseme Zegeye specializes in employment discrimination suits and women’s health individual and class actions. Prior to joining Lieff Cabraser, Tiseme was a Staff Attorney at the Center for Reproductive Rights in New York, where she litigated to protect women’s reproductive rights. Previously, she was a Legal Fellow at the American Civil Liberties Union Women’s Rights Project in New York, where she worked to fight gender discrimination in employment, education, and housing.

    About Hannah Lazarz

    An attorney in Lieff Cabraser’s Nashville office, Hannah Lazarz works on litigation in state and federal courts nationwide aimed at helping those who have been wronged. In addition to working on consumer fraud and product defect cases, Lazarz also contributes to Lieff Cabraser’s growing national practice in civil lawsuits against large institutions and the employees they knowingly protect who committed sexual assault.


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