Siham Ceballos
Founder and managing partner
Bioartemis GmbH
Zug, Switzerland
43 profile visits
Biotech executive with 20+ years at Pfizer, Celgene, Biogen and Alnylam, leading rare disease, oncology and CNS programs' expansion in Europe.
My organisation
I advise US and European biotech companies on EU expansion, portfolio strategy, and late-stage execution, helping transform scientific assets into successful global therapies. I work with CEOs, founders, and investors to de-risk key inflection points, from early portfolio decisions to Phase 2–3 transitions and European launch readiness. Focus areas: EU expansion strategy (turning Europe into a growth driver) Building & scaling Medical Affairs from Phase 2 through launch Portfolio & program strategy (early to late stage) Phase 2 → launch readiness (evidence, KOLs, access) Investor & board support (due diligence, positioning) Experience: Pfizer, Celgene, Novartis, Biogen, Alnylam Pharmaceuticals, Mayne Pharma, Rejuveron, Oxthera, Nektar, Cyclarity, Nanotics