Subject: Biologic Drugs

California Supreme Court Rejects Duty to Innovate

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On August 3, 2026, the California Supreme Court issued its decision in the closely watched Gilead Tenofovir Cases, No. S283862, — Cal.5th —, 2026 WL 2223748 (Cal. Aug. 3, 2026), rejecting the so-called “duty to innovate.” The court held, in a 6-1 decision, that “a drug manufacturer has no duty of care when deciding whether and when to develop and commercialize an allegedly safer alternative drug” to replace an admittedly nondefective drug. The decision is a significant victory for pharmaceutical manufacturers and carries substantial implications for product liability litigation across industries.

Background

The case arose from a Judicial Counsel Coordination Proceeding comprising more than 30,000 plaintiffs — HIV patients who took Gilead’s tenofovir disoproxil fumarate (TDF). Plaintiffs did not claim TDF was defective; it is undisputedly a life-saving medication. Instead, they alleged Gilead unreasonably delayed bringing an alternative medication, tenofovir alafenamide (TAF), to market, depriving them of a purportedly safer option and allegedly causing kidney, bone, or tooth injuries.

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FDA Publishes New Artificial Intelligence & Medical Products White Paper

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On March 15, the United States Food & Drug Administration published a white paper entitled “Artificial Intelligence & Medical Products: How CBER, CDER, CDRH, and OCP are Working Together.” FDA announced the paper by sharing a short letter from Commissioner Califf, where he reaffirmed the Agency’s commitment to “promoting the responsible and ethical development, deployment, use, and maintenance of safe and effective medical products that incorporate or are developed with AI.” The white paper does not contain any new pronouncements of FDA position, but refers to existing guidance and serves as a reinforcement for existing FDA policy regarding AI.

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Failure to Comply with Lone Pine Order Results in Dismissal of Over 1,000 Cases in Zostavax MDL

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Earlier this year, we discussed the Eastern District of Pennsylvania’s decision to enter a Lone Pine order – that is, a case management order that requires all plaintiffs to produce evidence establishing specific elements of their claim – in the Zostavax MDL. That post can be viewed here. We lauded that Lone Pine order’s potential to save the parties considerable time and expense while advancing the purposes of the MDL by weeding out meritless cases. That potential recently came to fruition: the court in the Zostavax MDL dismissed 1,189 cases for failure to comply with the Lone Pine order. In re: Zostavax (Zoster Vaccine Live) Prods. Liab. Litig., 2022 WL 17477553 (E.D. Pa. Dec. 6, 2022).

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Eastern District of Pennsylvania Issues Lone Pine Order in Zostavax MDL

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Multidistrict litigation is often criticized for enabling plaintiffs to file meritless cases and then hide in large inventories, hoping to be swept up in a settlement (whether global or otherwise) before the case is meaningfully probed through discovery.  Traditional tools such as plaintiff profile sheets and early screening orders represent a partial solution, as they can help identify cases with more obvious flaws such as those that are clearly time-barred or lack proof of product use.  But some issues, such as critical gaps in causation, are beyond the reach of the limited case-specific discovery permitted for most cases in an MDL.  Enter the Lone Pine order, a case management order by which a court requires all plaintiffs to produce evidence establishing specific elements of their claim.

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FDA Finalizes Voluntary Recall Guidance Imploring Companies to Be “Recall Ready”

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FDA recently issued final guidance regarding the initiation of voluntary product recalls and its related suggestions on how to be “recall ready.” The guidance – covering voluntary recalls of food, drugs, devices, biological products, cosmetics, and tobacco – emphasizes the importance of a company’s recall readiness at all stages of a product’s distribution chain and provides companies with suggested measures to prepare for and implement voluntary recalls. It also advises companies on best practices for working with FDA to initiate a timely voluntary recall.

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Circuits Split on CMS Vaccine Mandate, Highlighting “Great Significance” of Issue as It Heads to Supreme Court

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Three circuit court decisions issued in the past two weeks have considered the CMS vaccine mandate, bringing the issue – and similar vaccine mandate lawsuits – to the Supreme Court in the final weeks of the year. The CMS mandate generally requires that facilities certified to participate in Medicare or Medicaid ensure their staff are fully vaccinated against COVID unless the employee is exempt for medical or religious reasons. CMS issued the vaccine mandate on November 5, 2021. It went into effect immediately, with staff to be fully vaccinated by January 4, 2022.

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