
Michael Isler and Andreas Wildi are at the helm at Walder Wyss Ltd. , and the sizeable healthcare and life sciences team handles the full spectrum of relevant matters, although they are particularly noted for their regulatory expertise. Wildi’s diverse caseload encompasses pharmaceutical reimbursements and issues under pricing laws, as well as regulatory issues relating to pharmaceuticals, medical devices, cosmetics, genetic testing and stem cell and blood products. Isler has a wealth of experience in copyright, trade mark and patent law matters. Annemarie Lagger oversees advisory issues including contract drafting and also litigation, while Celine Weber is well-versed in pharmaceutical and medtech regulations.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Andreas Wildi is a leader in his field and has become indispensable to us, particularly in the area of pricing.’
- ‘The Walder Wyss team are specialists in their area, with a deep knowledge of the issues we are trying to address with our clients. They are able to expertly cut through to the key commercial problems that underpin a legal issue and provide clear and practical solutions.’
- ‘Annemarie Lagger deserves a special recommendation for providing excellent advice, being extremely responsive and a pleasure to work with on what are complex and time-pressured matters.’
- 'Celine Weber does an excellent job. She responds quickly and precisely to any request, clearly outlining possible legal risks and making internal decisions much easier, even for those without a legal background.'
- 'Andreas Wildi, being both a medical doctor and a lawyer with impressive experience in the life-science sector, is always keen and able to help.'
Key clients
- Amgen Switzerland AG
- Pfizer AG
- Hirslanden Group
- University Children's Hospital Zurich
- A. Menarini GmbH
- Stemline Therapeutics Switzerland GmbH
- Max Zeller Söhne AG
- Grünenthal Pharma AG
- BeiGene Switzerland AG
- Laboratorium Dr. G. Bichsel AG
- MediService AG
- Siemens Healthcare/Healthineers
Work highlights
Represented Pfizer, Amgen, Bayer, Viatris, Pierre Fabre, Merz Pharma and A. Menarini on various price reduction proceedings before the Federal Administrative Court and the Federal Supreme Court.
Advised the Hirslanden Group on a wide range of public law and regulatory matters.
Provided ongoing advice to various healthcare and industry associations including vips, ASSGP, OptikSchweiz, SVKH and Pädiatrie Schweiz on, inter alia, legal developments and HTAs.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Michael Isler; Andreas Wildi
Other key lawyers
Annemarie Lagger; Celine Weber
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