Subject: Prescription Drugs

Responsible AI: Managing Risk in an Evolving Regulatory and Legal Landscape

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Artificial Intelligence (“AI”) is driving innovation across industries and is playing an increasing role in everyday life. AI (and, more broadly, algorithms) is being used in diagnostics, enabled medical devices, device manufacturing, drug discovery and manufacturing, industrial manufacturing, smart home and wearable devices, and vehicles. AI has the potential to benefit society in a number of ways, including by boosting efficiency, providing invaluable insights, and informing decisions. But to borrow from the likes of Winston Churchill (or Spider-man), with great AI capabilities comes great responsibility.

Many of the risks and benefits of AI systems are unique in comparison to other technologies. Regulators, governmental agencies, and consumer advocates are keenly focused on addressing unintended consequences that may result from the development and use of algorithms and AI. These issues, like the technology, are complex, and policymakers, stakeholders, and regulators are grappling with how best to address them.

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“Alternative Avenues” Argument in Failure-to-Warn Cases Adding an Additional Wrinkle to Medical Device Litigation

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A developing line of cases across the nation may have large implications for medical device manufacturers defending against failure-to-warn claims.  While a treating physician’s failure to read or rely on the manufacturer’s warnings has historically been fatal to a failure-to-warn claim in many jurisdictions (at least those without a “read and heed” presumption), plaintiffs have tried novel “alternative avenues” arguments to make summary disposition of the claim more difficult.

There are two theories under which a failure-to-warn claim may be brought in the products liability context:  a manufacturer with a duty to warn may breach its duty by either (1) failing to provide an adequate warning of the product’s potential risks (the “content theory”) or (2) failing to adequately communicate the warning to the ultimate consumer (the “communication theory”).  Plaintiffs have traditionally pursued failure-to-warn claims in prescription medical device cases under the content theory, with most courts holding that a treating physician’s failure to read or rely on the manufacturer’s warnings in the product’s instruction for use (“IFU”) is fatal to the claim.  See, e.g., Foster v. Ethicon, Inc., 2021 WL 1169473, at *7 (D.S.D. Mar. 26, 2021).

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Ninth Circuit Asks California Supreme Court to Clarify the Causation Standard Applicable When the Learned Intermediary Doctrine Applies

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How demanding is the causation standard in a California failure to warn claim when a learned intermediary testifies that he would have read and incorporated more stringent warnings if they had been available? Is the plaintiff required to show that the stronger warning would have altered the physician’s decision to prescribe the product? Or may the plaintiff establish causation by showing that the physician would have communicated the stronger warnings to the patient and that a prudent person in the patient’s position would have declined the treatment as a result?

The Ninth Circuit isolated this undefined causation standard in Himes v. Somatics, LLC, and certified the question to the California Supreme Court. After confirming that the learned intermediary doctrine is alive and well in California and that a failure to warn claim cannot survive when the learned intermediary does not read the warnings at all, the Ninth Circuit stopped short of defining the causation standard that applies when a learned intermediary does read the warnings.

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Ninth Circuit Affirms Exclusion of Expert and Resulting Summary Judgment in In re: Incretin-Based Therapies MDL

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Early last year, the In re: Incretin-Based Therapies MDL court held that the plaintiffs’ warnings claims were preempted, excluded plaintiffs’ general causation experts, and granted summary judgment to all defendants on dual preemption and causation grounds. In re: Incretin-Based Therapies Prods. Liab. Litig., 524 F. Supp. 3d 1007 (S.D. Cal. 2021). For context, that was the second time the defendants won summary judgment; the Ninth Circuit had reversed an earlier preemption victory in an opinion that predated the Supreme Court’s decision in Albrecht. In re Incretin-Based Therapies Prods. Liab. Litig., 721 F. App’x. 580 (9th Cir. 2017). Now, however, the Ninth Circuit has affirmed summary judgment as to one defendant (Novo Nordisk A/S (“Novo”)). In re: Incretin-Based Therapies Prod. Liab. Litig., 2022 WL 898595 (9th Cir. Mar. 28, 2022).

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Another Brick in the Wall: The District Court Finds Preemption in Fosamax Case After Remand From the Supreme Court

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We have written before about the Supreme Court’s impossibility preemption decision, Merck Sharpe & Dohme Corp. v. Albrecht, 139 S. Ct. 1668 (2019) (Albrecht) (here, here, here, and here), highlighting some open questions and uncertainties that might come into play on remand. Albrecht held that impossibility preemption is a question of law for the court, not for the jury, “elaborated” on the “clear evidence” standard arising from Wyeth v. Levine, 555 U.S. 555 (2009) (Wyeth), and remanded to the Third Circuit for determination of the preemption issue. That court in turn remanded to the District of New Jersey and further directed the district court “to determine the effect of the FDA’s Complete Response Letter and other communications with Merck on the issue of whether the agency actions are sufficient” to find preemption.

We predicted that the decision on remand would be “interesting” and opined that the case for preemption was “strong.” We now have that decision, In re Fosamax (Alendronate Sodium) Prod. Liab. Litig., 2022 WL 855853 (D. N.J. Mar. 23, 2022) (Fosamax), and we were right on both counts.

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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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