Christian Dowdeswell

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Siegfried Announces Changes in Senior Management Team

Siegfried has appointed Marianne Späne, currently chief business officer Drug Products, as chief business officer with responsibility for both the Drug Substances and Drug Products divisions of the Swiss contract manufacturing and development organization (CDMO), effective Feb. 1, 2024. Christian Dowdeswell, who previously led the Drug Substance business, has decided to leave Siegfried.

Virtual Event

Outsourced Biomanufacturing
Strategic Outsourcing in Biopharmaceuticals

Outsourced Biomanufacturing

April 22, 2026 | Join biopharma professionals, CDMO leaders, and supply chain innovators for a virtual event exploring the future of outsourced biomanufacturing.