Job Description
As an integral member of Otsuka’s Rare Diseases Business Unit within Medical Affairs, the Senior Medical Science Liaison (Sr. MSL), Rare Diseases, executes national medical strategies in the field and is responsible for the development and execution of regional medical business plans. The Sr. MSL identifies, prioritizes, and engages stakeholders and accounts with both regional and national importance that are critical to Otsuka’s rare disease objectives. The Sr. MSL is a credible scientific partner who provides clinical, scientific, and healthcare landscape expertise related to rare disease states, emerging data, and therapeutic opportunities across the product lifecycle, including pre-launch, launch, and post-launch phases. This field-based role engages highly specialized stakeholders—including key opinion leaders (KOLs), investigators, healthcare providers, advocacy organizations, and multidisciplinary care teams—to advance patient outcomes aligned with Otsuka’s overarching objectives. In collaboration with internal partners, the Sr. MSL develops and executes regional medical business plans and associated tactics aligned with national medical strategy to address evolving customer and account needs. The Sr. MSL is responsible for the scientific and educational needs of assigned customers and accounts and may support multiple disease areas or assets within the rare disease portfolio. This individual engages in broad clinical and scientific discussions that impact patient care, account readiness, launch preparedness, and long-term medical strategy, generating high-quality customer insights shared across Medical Affairs and the broader organization. These roles will support rare disease programs including FUS ALS, PKU, and other LCM indications. Unlike a traditional field medical model, these positions will operate across broad geographic regions, with a limited number of field medical colleagues covering the entire United States. As a result, the role is highly account-focused, with particular emphasis on Centers of Excellence, specialized referral centers, and other strategically important rare disease accounts. The Sr. MSL collaborates, as appropriate, with Global Medical Strategy, Advocacy, and Commercial partners in support of enterprise rare disease objectives, while operating in full compliance with all applicable medical, legal, and regulatory requirements. Key Activities And Responsibilities Execute national medical strategies in the field while identifying, prioritizing, and engaging stakeholders and accounts with regional and national significance. Develop, implement, and adapt regional medical business plans aligned with national medical strategy and tailored to assigned regions, priority accounts, and specialized stakeholder groups. Contribute clinical and scientific expertise to regional planning and execution activities that address customer and account challenges, opportunities, and unmet needs across pre-launch, launch, and post-launch phases. Build, cultivate, and sustain strong external relationships with key scientific and medical stakeholders to maintain a deep understanding of healthcare trends, disease-state dynamics, care pathways, treatment readiness, and unmet needs. Engage priority stakeholders across rare disease accounts, including KOLs, investigators, healthcare providers, key decision-makers, patient advocacy organizations, and multidisciplinary care teams. Develop and maintain a comprehensive understanding of the regional and national rare disease landscape, including Centers of Excellence, referral pathways, diagnostic and treatment patterns, and account-specific needs, ensuring alignment with Otsuka’s patient-centric strategy. Serve as a trusted source of evidence-based scientific information and collaborate with healthcare professionals to identify practical, real-world approaches to improving patient outcomes. Contribute to business objectives beyond the assigned region and provide meaningful impact across the broader Medical Affairs organization. Establish and maintain strong internal partnerships across Rare Diseases Medical Affairs and cross-functional teams to ensure an enterprise mindset when engaging customers and strategic accounts. Be accountable to Rare Diseases Medical Affairs leadership for the effective execution of regional medical business plans and tactics within established timelines. Lead special projects as requested by management and assume incremental leadership or point roles within Medical Affairs. Disseminate disease-state, clinical, scientific, and healthcare landscape information in alignment with medical priorities and product lifecycle needs. Support clinical and data-focused training for approved speakers and contribute to scientific education initiatives, as appro