Olivier Lantrès | Fieldfisher
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Professional background

Professional background

Olivier is an expert on regulatory issues in the life sciences and healthcare sectors, in particular concerning medical devices, pharmaceutical and phytopharmaceutical products and cosmetics.

His main area of practice involves matters relating to advertising of pharmaceutical products, relationships with healthcare practitioners, clinical trials, and advising clients in the context of monitoring by the health authorities.

He is a Doctor of Law (magna cum laude) and ranked as a 'Leading Individual' by Legal 500 (2022) as well as Band 1 in Chambers 2022. In addition to this, He is also recognised and ranked by a number of other directories including PLC Which Lawyer, Best Lawyers in France and Décideurs Stratégie Finance Droit.

He was awarded a first prize by the French Healthcare Law Association for his work and also is a member of the professional associations ACIP and AMIPS.

He joined Fieldfisher as a Partner in 2008 after having worked with Price Waterhouse Coopers and Proskauer Rose LLP.

In addition to his native French, he is fluent in English.

 

Awards & recognition

Awards & recognition

Client
We had the pleasure of working with Mila Kovalenko, who exhibits outstanding professionalism and thorough knowledge of her areas of practice.
Chambers & Partners 2022
He has extremely good knowledge of the healthcare sector. He is always available and is very efficient.
The Legal 500 EMEA 2022
Olivier Lantrès has solid experience and excellent knowledge of the health sector and the issues encountered by his clients. He is surrounded by a competent and very responsive team.

He is always there and always finds relevant and business-oriented solutions for his clients. Olivier has an activity established at Fieldfisher for many years which allows him to work transversally with the other teams of the firm.

He is very responsive and, with his team, produces quality work at ‘fair’ prices.

Authored pieces

All Resources
Close-up of a laboratory setting featuring a plastic test tube rack and graduated pipettes submerged in water with bubbles surrounding them. The background transitions from pink to blue tones, creating a visually appealing scientific scene.
Life Sciences
Insight

The European Court of Justice opens the way for chemically synthesised generics of reference biological medicinal products

29.04.2026
In a landmark decision issued last Thursday, the Court of Justice of the European Union ruled that a medicines agency may grant a marketing authorisation for a chemically synthesised product as a generic of a reference biological medicinal product. This decision applies across all EU Member States and is expected to have significant implications for the pharmaceutical sector.
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A digital illustration of a glowing DNA double helix strand made up of colorful light particles, set against a dark background with purple and blue hues.
Life Sciences
Insight

ECJ's landmark ruling on defective products liability: What it means for life sciences manufacturers

30.03.2026
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Several packs of pills in various shapes and colors are scattered on a surface. The medication is contained in blister packs, with some capsules being half white and half blue, others in different color combinations. The image uses blue and pink lighting.
Life Sciences
Insight

LFSS 2026: What the new Supplementary Contribution means for Pharma

10.03.2026
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A digital abstract image featuring a glowing blue particle wave flowing through a dark background. Below the wave, a network of interconnected points and lines creates a web-like structure, also illuminated in blue, giving a sense of data transmission and connectivity.
Life Sciences
Press Release

Fieldfisher secures key regulatory victories for Philagro France and Suterra in market access disputes

28.03.2025
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Insight

French judges clarify the notion of medical devices

18.02.2025
The Paris Court of Appeal has just issued a landmark decision concerning the notion of medical devices, in the context of a five-year dispute between two French companies.
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What others say…

Client
We had the pleasure of working with Mila Kovalenko, who exhibits outstanding professionalism and thorough knowledge of her areas of practice.
Chambers & Partners 2022
He has extremely good knowledge of the healthcare sector. He is always available and is very efficient.
The Legal 500 EMEA 2022
Olivier Lantrès has solid experience and excellent knowledge of the health sector and the issues encountered by his clients. He is surrounded by a competent and very responsive team.

He is always there and always finds relevant and business-oriented solutions for his clients. Olivier has an activity established at Fieldfisher for many years which allows him to work transversally with the other teams of the firm.

He is very responsive and, with his team, produces quality work at ‘fair’ prices.