Claire Davies provides strategic counsel to help clients navigate FDA regulatory and compliance challenges.

Claire has handled a wide range of issues involving medical devices, biological products, drugs and human cells, tissues and cellular and tissue-based products (HCT/Ps). Her experience spans the product lifecycle and includes the following areas:

  • Investigational new drug application (IND), investigational device exemption (IDE) and other federal research requirements
  • Pathways to market for novel medical devices and digital health products
  • Regulatory classification of HCT/Ps and donor eligibility requirements
  • Adverse event reporting
  • Postmarket manufacturing and product changes
  • Responses to FDA Form 483 Observations
  • Advertising and promotion

Prior to joining Polsinelli, Claire spent nearly a decade as an attorney in the FDA’s Office of the Chief Counsel. Her work at FDA often involved advising agency leadership on high-profile and significant matters, such as responses to emerging public health threats and user fee negotiations with industry. Claire also worked regularly with FDA policy and scientific staff to develop regulations and guidance, resolve disputes with product sponsors, respond to citizen petitions and address compliance concerns through warning letters or other actions.

Education

  • University of Minnesota Law School (J.D., magna cum laude, Order of the Coif, 2010)
    • University of Wisconsin-Madison (B.S., with distinction, 2006)

      Bar Admission

      • Colorado
      • District of Columbia

      Professional Affiliations

      • Food and Drug Law Institute
      • Colorado Bar Association
      • Denver Bar Association

      Recognition

      • FDA Outstanding Service Award
      • Named one of Washington, D.C.'s Super Lawyers "Rising Stars", 2014-2015
      Publications
      Clarity or Corporate Secret? Battle Brews Over FDA Letters
      Shareholder Claire Davies discusses emerging developments in the healthcare regulatory landscape, focusing on how evolving agency actions and court decisions are reshaping compliance expectations for industry stakeholders. She highlights that healthcare and life sciences companies are facing increased scrutiny around regulatory approvals, operational practices and risk management as agencies adopt more aggressive and data-driven enforcement strategies. Davies emphasizes that organizations must remain proactive in adapting their compliance programs and business practices to navigate growing legal uncertainty and minimize regulatory exposure. (subscription required)
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      FDA Signals it Has No Appetite to Add Popular GLP-1 Drug Substances to the 503B Bulks List
      Key Takeaways FDA has proposed excluding semaglutide, tirzepatide and liraglutide from the 503B bulks list. The proposal would materially limit 503B bulk compounding of these GLP-1 products. Comments on the proposal are due June 29, 2026. Bulk compounders should consider submitting comments that directly address FDA’s clinical-need framework, including patient safety considerations and any specific medical necessity for compounding these products from bulk drug substances. On April 30, 2026, FDA proposed to exclude semaglutide, tirzepatide and liraglutide from the 503B bulks list via a Federal Register notice published on May 1, a move that, if finalized, would limit mass compounding of these substances by outsourcing facilities. FDA explained that, after reviewing nominations for semaglutide, tirzepatide and liraglutide, it found no demonstrated clinical need for outsourcing
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