Senior Director, Biometrics

Company Overview: Prime Medicine is a leading biotechnology company dedicated to creating and delivering the next generation of gene editing therapies to patients. The Company is leveraging its proprietary Prime Editing platform, a versatile, precise and efficient gene editing technology, to develop a new class of differentiated, one-time, potentially curative genetic therapies. Designed to make only the right edit at the right position within a gene while minimizing unwanted DNA modifications, Prime Editors have the potential to repair almost all types of genetic mutations and work in many different tissues, organs and cell types. Prime Medicine is currently progressing a diversified portfolio of investigational therapeutic programs organized around our core areas of focus: hematology, immunology & oncology, liver and lung. Across each core area, Prime Medicine is focused initially on a set of high value programs, each targeting a disease with well-understood biology and a clearly defined clinical development and regulatory path, and each expected to provide the foundation for expansion into additional opportunities. For more information, please visit www.primemedicine.com . Reports To: VP of Clinical Development Position Summary Prime Medicine is seeking an experienced Senior Director, Biometrics to serve as the senior biostatistics leader for the organization while providing strategic and operational leadership for the broader Biometrics function, including Clinical Data Management, in support of our gene editing clinical programs. This individual will provide statistical expertise across Prime’s clinical portfolio, including input on study design, protocol development, dose-escalation strategy, interim analyses, regulatory interactions, and submission planning. In parallel, the individual will build and lead an integrated Biometrics function by providing strategic oversight and line management of Clinical Data Management while partnering closely with Clinical Development, Clinical Operations, Regulatory Affairs, Medical Writing, Translational Medicine and other functions. This role requires both strategic vision and hands-on oversight, particularly in a lean, fast-moving biotech environment. Although responsible for the broader Biometrics function, this position is first and foremost a senior biostatistics leadership role requiring deep expertise in clinical trial design, statistical methodology, regulatory interactions, and quantitative decision-making across clinical development. This is a high visibility role with significant influence on clinical development decisions. Key Responsibilities Biometrics Strategy & Leadership • Provide overall biometrics leadership across Prime Medicine’s clinical programs, spanning: • Biostatistics • Data Management • Statistical programming (via vendors) • Define and implement biometrics strategies appropriate for early- and mid-stage gene therapy development, including: • Study design and statistical approaches • Endpoint selection and estimands • Data standards and quality frameworks • Serve as the primary biometrics representative on cross-functional program and study teams. Lead Biostatistician Responsibilities Function as the lead statistician across Prime's clinical development portfolio, providing scientific and strategic statistical leadership from protocol concept through regulatory submission. • Provide strategic input into: • Clinical trial design • Sample size and power considerations • Randomization and statistical analysis plans (SAPs) • As needed, data extraction and compilation for publications and external presentation activities • Review, approve, and oversee key statistical deliverables, including: • SAPs • Interim and final analyses, including