Director, Pharmacometrics & Clinical Pharmacology

Arrowhead Pharmaceuticals, Inc. (Nasdaq: ARWR) is a commercial-stage biopharmaceutical company developing medicines that treat intractable diseases by silencing the genes that cause them. Using a broad portfolio of RNA chemistries and efficient modes of delivery, Arrowhead therapies trigger the RNA interference (RNAi) mechanism to induce rapid, deep, and durable knockdown of target genes. The company focuses on developing innovative drugs for diseases with a genetic basis, leveraging RNAi technologies to address conditions across virtually any therapeutic area, including targets not addressable by small molecules and biologics. Arrowhead’s clinical pipeline includes disease targets in the liver and lung, with a promising preclinical pipeline. Headquartered in Pasadena, CA, the company has research and development teams in Madison, WI, and San Diego, CA, and a state-of-the-art manufacturing facility in Verona, WI.

About the role

The Director of Pharmacometrics and Clinical Pharmacology will provide strategic and scientific leadership across Arrowhead’s clinical development programs. This senior-level role is responsible for advancing pharmacometric and clinical pharmacology strategies to support global development and regulatory submission of the company’s leading siRNA therapeutics. The Director will play a critical role in clinical trial design, data analysis, regulatory documentation, and cross-functional decision-making, ensuring dosing strategies and clinical pharmacology plans are scientifically rigorous and aligned with regulatory expectations.

Responsibilities

• Serve as the pharmacometrics and clinical pharmacology lead across multiple development programs within Arrowhead’s RNAi therapeutic portfolio.
• Lead model-informed drug development strategies, including population PK/PD analyses, exposure-response analyses, translational modeling, dose optimization, and quantitative interpretation of clinical and translational data.
• Develop and support clinical pharmacology strategies for first-in-human studies, dose escalation and optimization, proof-of-concept studies, drug-drug interaction assessments, food effect studies, and special population evaluations.
• Provide scientific leadership and oversight for PK/PD analyses and modeling activities conducted internally and through external CRO partners.
• Contribute to global regulatory submissions and health authority interactions, including INDs, CTAs, NDA/BLA submissions, briefing documents, and responses to agency questions.
• Author and review clinical pharmacology content for Investigational Brochures (IBs), clinical protocols, Clinical Study Reports (CSRs), and regulatory submission documents.
• Collaborate closely with Clinical Development, Translational Sciences, Regulatory Affairs, Biometrics, Biomarkers, Medical Affairs, and Program Leadership teams to support program strategy and execution.
• Present quantitative analyses, development strategies, and recommendations to project teams and senior leadership.
• Maintain current knowledge of evolving scientific methodologies, regulatory guidance, and industry trends related to pharmacometrics, clinical pharmacology, and RNAi therapeutics.

Requirements

• PhD or equivalent advanced degree in Pharmacokinetics, Pharmacology, Pharmaceutical Sciences, Biomedical Engineering, Applied Mathematics, or related quantitative discipline.
• 12+ years in pharmacometrics and/or clinical pharmacology, including experience supporting late-stage development programs and global regulatory submissions.
• Deep expertise in population PK/PD modeling and simulation with strong proficiency in industry-standard software such as NONMEM.
• Strong understanding of exposure-response analysis, translational modeling, dose optimization, and model-informed drug development principles.
• Experience supporting regulatory interactions with FDA, EMA, and other global health authorities.
• Knowledge of PBPK, QSP, mechanistic modeling, or systems pharmacology approaches is highly desirable.
• Prior experience with oligonucleotide, RNAi, rare disease, liver-targeted therapeutics, or other complex biologic modalities is preferred.
• Demonstrated ability to independently lead complex scientific initiatives and influence cross-functional teams in a matrixed environment.
• Excellent communication and presentation skills, with the ability to clearly communicate complex quantitative concepts to scientific and non-scientific audiences.

Pay

• Wisconsin pay range: $200,000 USD - $230,000 USD
• California pay range: $230,000 USD - $255,000 USD

Benefits

Arrowhead provides competitive salaries and an excellent benefit package. Candidates must have current, valid authorization to work in the country where this role is located.