
Dechert LLP’s global team advises leading life sciences companies in both contentious and non-contentious matters. The practice is particularly strong in IP, with figures such as New York-based first-chair attorney Katherine Helm leading in patent litigation. The team is also involved in antitrust and product liability matters, an example of the latter being its role as lead national counsel for GlaxoSmithKline in the multi-district and state-court mass tort litigation concerning allegations that Zantac causes cancer. It has also advised in matters at the increasingly significant intersection of healthcare data privacy and tech. The practice is headed by Boston-based Andrea Reid, an IP counseling and prosecution expert, and New York’s David Rosenthal, who focuses on the team’s corporate and financial transactions work. Jennifer Csik Hutchens joined the Charlotte office from Bryan Cave Leighton Paisner in January 2025, expanding the team’s regulatory expertise.
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Testimonials
Collated independently by Legal 500 research team.
- 'The level of detail on specific topics - technical, legal and regulatory - is extremely impressive.'
- 'They make sure to understand the clients' needs and their suggestions are always of great value.'
- 'The team has deep subject matter experience and is strong strategically. It has done a very good job.'
- 'Dedication, responsiveness and expertise.'
Key clients
- AbbVie / Allergan
- argenx SE
- Biogen
- Eli Lilly and Company
- Endo Pharmaceuticals
- Forbion Capital Partners
- GlaxoSmithKline
- Homology Medicines
- Ikena Oncology
- Ipsen Biosciences
Work highlights
- Represents GlaxoSmithKline as national counsel in multidistrict and state-court Zantac litigation across numerous jurisdictions.
- Represented Genzyme Corporation and Sanofi SA in multiple patent infringement actions related to Novartis’ manufacture, sale and use of ZOLGENSMA® (onasemnogene abeparvovec-xioi).
- Handled the IP due diligence for Royalty Pharma in its US$350 million royalty funding agreement with Syndax Pharmaceuticals for Niktimvo™ (axatilimab-csfr).
Lawyers
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head
Andrea Reid; David Rosenthal
Other key lawyers
Katherine Helm; Mark Cheffo; Chad Davis