Koosje van Lessen Kloeke

Partner & Lawyer

Koosje is a specialist in the area of life sciences & healthcare, with a specific focus on regulation under European and Dutch law. Her work includes advising and litigating in matters of pharmaceutical (human and veterinary pharmaceutics) and medical device regulation, health products, food for particular nutritional uses, cosmetics, and biocidal products. Koosje focuses on issues with regard to clinical trials, marketing authorizations and registrations for medicines, price setting, healthcare funding and reimbursement, cross-border healthcare, advertising and promotion, nutrition and health claims, borderline issues, supervision, enforcement and the disclosure of information by healthcare or other authorities.

Koosje has many publications to her name. She is the author of the commentary on the Dutch Medicines Act (Geneesmiddelenwet) in Tekst & Commentaar Gezondheidsrecht and the former editor of Teksten wetgeving gezondheidsproducten. Apart from that she is a regular speaker at conferences on topics concerning pharmaceutical law. Koosje is member of the Dutch Health Law Association and VAR (Dutch Administrative Law Association). Furthermore, she is co-founder, former board member and honourary member of the Dutch Pharma and Law Association. From 2005 - 2010 she was secretary of this association. 

Koosje graduated from Leiden University in 2000. Until 2006 she worked for Stibbe. In 2007 Koosje’s peers elected Koosje as the best health law lawyer in the Netherlands in the category up to the age of 30. Her expertise is acclaimed in authoritative rankings, including Chambers Europe.

T: +31 10 244 43 44

E: k.vanlessenkloeke@leijnseartz.com