Stefan Lorenz is a Senior Medical Affairs professional with more than 20 years of experience in major pharmaceutical and healthcare companies. As a freelancer and interim manager, he specializes in Oncology and Rare Diseases, helping organizations strengthen Medical Affairs strategy, execution, and impact across the full product lifecycle.

His services include both strategic support and advisory as well as hands-on tactical execution across Medical Affairs. His expertise spans Medical Affairs leadership, brand and lifecycle strategy, evidence and insight generation, medical education, competitive intelligence, pipeline opportunity assessments, and HTA support. Stefan has a proven track record in building and transforming Medical Affairs organizations, including strategic reorganization, capability development, and acquisition integration.

With a strong focus on cross-functional collaboration, Stefan supports pharma businesses in navigating fast-moving, highly innovative, and competitive environments — from early development and pre-launch to launch and mature products.