Siddharth Jain

Head (SD), Global Medical Unit for Growth & Launch Brands in Rare Diseases Takeda

I'm a global Medical Affairs leader with 16+ years' experience across rare diseases and multiple therapy areas, currently leading Takeda's Global Medical Unit for Growth & Launch brands in Rare Diseases (Senior Director). I'm known for building high-trust, multicultural stakeholder partnerships and for translating medical evidence into clear strategy and execution across geographies and functions. I lead with purpose, clarity, and accountability—aligning teams around patient-impactful priorities while creating a positive, growth-oriented culture through consistent mentoring and people development. My leadership spans end-to-end portfolio and launch excellence: omnichannel and medical excellence initiatives, external society and patient advocacy collaborations, and large multi-country real-world evidence programs that drive publications and organizational visibility. I bring disciplined operational leadership and governance, including budget stewardship of more than 15 million dollars annually, strong compliance and regulatory rigor, and a track record of establishing foundational capabilities (e.g., processes, pharmacovigilance infrastructure, and medical information systems) in start-up or scaling environments.