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Centessa Pharmaceuticals, a wholly subsidiary of Eli Lilly and Company is advancing a portfolio of high conviction programs with strong biological validation. Our asset-centric model offers a unique R&D logic that has been applied by single asset companies to improve productivity. This operating model has minimal centralized infrastructure, reduced hierarchy, and exclusive focus on data driven capital allocation. Our teams are uniquely incentivized to expeditiously interrogate key scientific hypotheses. We believe the asset-centric model can lead to improved success rates for programs with greater speed and modest costs.
of Role
Centessa Pharmaceuticals is seeking an Executive Director, Toxicology to provide scientific and strategic leadership as well as operational management for nonclinical safety across discovery and development programs, with an emphasis on small‑molecule therapeutics. This role leads toxicology and safety pharmacology strategy to support target selection, lead optimization, INDNDA enabling activities Reporting to our Head of Nonclinical & Translational Development, the Executive Director partners closely with cross‑functional teams and representsnonclinical safety in regulatory interactions while building a strong, high‑performing toxicology organization.
Key Responsibilities
Lead and mentor a team of toxicologists and technicaloperational staff, fostering scientific excellence and professional growth
Define and execute nonclinical safety strategies across discovery, preclinical, and clinical stages
Provide expert toxicology and safety pharmacology input to cross‑functional development teams
Lead nonclinical sub‑teams as an integrated development head, providing cross‑functional oversight across Toxicology, DMPK, Bioanalytical Sciences, and Clinical Pharmacology to ensure aligned, program‑ready nonclinical strategies.
Serve as the primary nonclinical representative on Program Development Teams (PDTs) and at internal governance and external forums, effectively championing program strategy, presenting to regulatory authorities, and holding scientific ground with senior leadership, partners, CROs, and health authorities.
Design, oversee, and interpret GLP, non‑GLP, investigative, and in vitro toxicology studies
Develop safety strategies for new targets, lead optimization programs, and platform technologies
Oversee toxicology and safety pharmacology studies conducted internally and at CROs
Ensure high scientific quality, compliance, and timely delivery of nonclinical study outputs
Author and critically review toxicology sections of regulatory documents (e.g., pre‑IND, IND, IBs)
Partner with biology, DMPK, pathology, pharmacology, clinical, and regulatory colleagues to drive integrated decision‑making
Present nonclinical safety data and risk assessments to project teams and senior R&D leadership
Serve as the primary nonclinical safety representative in regulatory agency interactions
Support product defense and regulatory submissions through robust scientific rationale
Provide strategic guidance on safety issue resolution and investigational toxicology approaches
Contribute to portfolio‑level planning and prioritization of nonclinical safety resources
Build scalable toxicology capabilities to support a growing and diverse pipeline
Qualifications
PhD in Toxicology, Pharmacology, Pathology, DVM, or related discipline; board certification (e.g., DABT, ERT) preferred
18+ years of experience in pharmaceutical or biotechnology R&D with a strong track record in nonclinical and regulatory toxicology
Proven ability to function as an upward‑facing nonclinical leader and generalist, with the credibility and judgment to represent PDTs at governance, engage confidently with regulatory agencies, and serve as a trusted development partner to senior leadership.
Deep expertise supporting small‑molecule programs across discovery, IND‑enabling, and early clinical development
Strong working knowledge of national and international GLP guidelines
Demonstrated experience defining and executing nonclinical safety strategies to support diverse pipelines and novel biology
Proven leadership experience building, managing, and mentoring toxicology teams within a collaborative, matrixed environment
Extensive experience preparing and reviewing nonclinical sections of global regulatory submissions and engaging with health authorities (FDA, EMA)
Strong ability to integrate complex nonclinical datasets across toxicology, pathology, DMPK, and pharmacology to inform development decisions
Experience overseeing outsourced toxicology and safety pharmacology studies and managing CRO partnerships
Excellent communication and influencing skills, with the ability to partner effectively across Early Development, Research, and Regulatory functions in a fast‑paced environment
Work Location
The Executive Director, Toxicology role is based in the US, with occasional travel.
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Actual compensation will depend on a candidate’s education, experience, skills, and geographic location. The anticipated wage for this position is
$153,000 - $290,400
Full-time equivalent employees also will be eligible for a company bonus (depending, in part, on company and individual performance). In addition, Lilly offers a comprehensive benefit program to eligible employees, including eligibility to participate in a company-sponsored 401(k); pension; vacation benefits; eligibility for medical, dental, vision and prescription drug benefits; flexible benefits (e.g., healthcare and/or dependent day care flexible spending accounts); life insurance and death benefits; certain time off and leave of absence benefits; and well-being benefits (e.g., employee assistance program, fitness benefits, and employee clubs and activities).Lilly reserves the right to amend, modify, or terminate its compensation and benefit programs in its sole discretion and Lilly’s compensation practices and guidelines will apply regarding the details of any promotion or transfer of Lilly employees.
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