George Clinical’s senior management team bring together unique and innovative qualities that make us a key partner in clinical research programs. Our team combines significant scientific and medical knowledge as well as the operational expertise developed through decades of working in clinical research, pharmaceutical companies, medical device companies and CROs.

Senior Management


Marisa Petersen, PhD

Chief Executive Officer, George Clinical

Marisa completed her pharmacy degree at the University of Sydney and continued her studies with a PhD in Clinical Pharmacology and Pharmacokinetics. She has worked for over 20 years in the pharmaceutical industry, fulfilling roles in Regulatory Affairs, Clinical Research and Project Management. Prior to joining George Clinical, Marisa was the Vice President Asia Pacific for Omnicare Clinical Research, a global CRO, taking responsibility for the delivery of trials in the Asia-Pacific region and developing a network of offices across the region to effectively service customer needs. In her current role, Marisa is focussed on sustainable growth of resources in the region and delivery of regional and global studies to the highest international standards. Marisa has a strong association with ARCS in Australia and Asia and is a member of the Australian R&D Taskforce.

Contact Marisa Petersen


Amanda Jubb, BSc (Hons)

Global Head, Project Operations

Amanda is responsible for the project management and clinical operations teams to deliver George Clinical’s studies to the highest standards. Amanda has over 25 years’ experience implementing clinical trials across the Asia Pacific region and more than 20 years line management experience. Amanda has worked across all clinical trial phases and George Clinical’s therapy areas. Her previous management roles span both CROs and pharmaceutical companies and she has worked as an independent consultant.

Contact Amanda Jubb


Deborah Fox, BPharm G.Dip App. Sc. (Info)

Global Head, Clinical Research Compliance

Deb oversees clinical research compliance, quality management and associated training activities at George Clinical. Deb has over 25 years’ clinical research experience having worked across the broader Asia Pacific region. Her previous roles and responsibilities have included project and site management, clinical operations, clinical quality assurance/auditing, management of safety reporting, compliance and training activities and line management of staff, and is supplemented by extensive prior experience as a hospital pharmacist across a wide range of therapeutic areas. Deb has worked for a variety of major pharmaceutical companies and contract research organizations.

Contact Deborah Fox


Paul Donnelly

Global Head, Data Management and Project Systems

Paul manages the data management team delivering support for the various research projects conducted; including clinical trials, observational studies and surveys. Paul has over 20 years experience with global pharmaceutical and CRO companies, focusing primarily on Data Management and Project Management. Paul has worked extensively in all phases of clinical studies, from Phase I – IV and has worked collaboratively with organizations in Europe, North America and Asia. Previously, Paul has held senior positions at Roche, Novartis, PRA International and Quintiles.

Contact Paul Donnelly


Jacqueline Thorn, PhD MBA GDip IP

Commercial Director and Head of Business Operations ANZ

Jacqueline is George Clinical’s Commercial Director and Head of Business Operations ANZ. Jacqueline has extensive experience in business development having spent 25 years in the healthcare industry working in the biotechnology, diagnostic and pharmaceutical markets. She held various sales, marketing and business development positions and has experience in intellectual property management.

Contact Jacqueline Thorn


Maria Ali, MBBS, MBA

Global Head, Medical, Regulatory Services and Scientific Leadership

Maria leads the Medical and Safety Services group at George Clinical that provides safety management, endpoint adjudication, medical monitoring and scientific leadership for both commercially sponsored and academic clinical trials. Maria’s group has extensive experience in delivering these services for trials in all phases of clinical studies (Phase I – IV) as well as a variety of collaborative settings. Maria works closely with the scientific leads at George Institute to develop and implement scientific leadership models for George Clinical studies, as well as to develop new ideas for clinical research, and processes to improve clinical trial design and efficiencies. Maria has several years’ experience in both public health and clinical research, and research management, across a range of settings including hospitals, academic and clinical research organizations.

Contact Maria Ali

Jeff Wehmeyer

Jeff Wehmeyer

Global Head, Biometrics and Technology Solutions

Jeff completed his degrees (BS) in engineering (Aerospace as well as Mechanical) at the University of Missouri – Rolla in 1992. Instead of the engineering field, Jeff pursued pharmaceutical research from 1993 onward. For over 22 years, Jeff led the clinical data management group as well as statistics, statistical programming, medical writing, and IT infrastructure and development at United BioSource Corporation. This group grew over the years from one location and 3 employees in 1993 to 4 locations and over 100 employees within the data management and biostats groups. Jeff has focused on systems development and programming throughout his career with an emphasis on CTMS, EDC, EMR, as well as other electronic systems focused on improving clinical care and research.

Contact Jeff Wehmeyer

Tony Beare

Tony Beare

Finance Director

Tony joined George Clinical in December 2008 in the capacity of Project Finance Manager working directly with operational groups and functional areas applying the knowledge and experience gained over the previous 11 years with a major CRO and pharmaceutical company. Tony then accepted the role of Financial Controller and served for two years before taking the position of Finance Director in January 2017.

Tony leads a dedicated and talented finance team and takes responsibility for the management of the finance function across all George Clinical’s regions delivering support for the group globally. His 20 years’ of broad and varied experience within the finance and operations groups of global pharmaceutical and CRO companies drives a strong commercial focus.

Contact Tony Beare

Regional Management

philip gregory

Philip Gregory BSc. (Hons)

Managing Director, China

Head of BD and Sales Asia Pacific

Philip has over 23 years’ experience in Pharmaceutical marketing in mainstream pharmaceutical companies, biotechnology and medical devices. He has held senior management roles in International marketing, Brand and business development and strategic portfolio development. Philip has worked in several countries including the USA, UK, Japan, Australia and China and has worked in Asia for over 18 years, the last ten years in China. Philip is the Managing Director of George Clinical China and Head of BD and Sales for Asia Pacific developing our business and customers throughout the Region.

Contact Philip Gregory

vanaja krishnan

Vanaja Krishnan

Managing Director, India

Vanaja has a Master’s degree in Commerce and professional qualifications in both Cost & Financial management and Corporate compliance. She has 25 years of experience in Global Organizations such as Molex Inc. & Sigma Aldrich (now a subsidiary of Merck) as CFO and other Senior Leadership roles in Finance, Human Resources, Information Systems and Sourcing & Procurement. Most recently Vanaja was responsible for establishing and leading Global Shared Services for Sigma Aldrich. Vanaja has significant experience leading major strategic projects through to completion. Vanaja, in her role as Managing Director in India, oversees the India business, focusing on its growth strategy and expansion of George Clinical’s footprint in India’s Clinical Research landscape.

Contact Vanaja Krishnan

Evon Hui

Evon Hui

Head of Business Operations, East Asia

Evon has completed her Bachelor of Science Degree in Biology at the University of Toronto and continued her Master’s studies in Nutritional Science. She has over 15 year of experience working in the pharmaceutical industry in various fields including regulatory affairs, clinical research and project management. Prior to joining George Clinical, Evon held a clinical operations management role at Pfizer. Evon is the Associate Director of Business Operations at George Clinical managing the business activities in various countries in East Asia including Hong Kong, Malaysia, Philippines, South Korea, Taiwan, Thailand and Vietnam. Evon also oversees the next stages in the development of George Clinical’s business and operations in other Asia-Pacific Region.

Contact Evon Hui

Sean Hart

Sean Hart

Managing Director USA and Global Head of Late Phase Studies

Sean Hart is the Managing Director USA and Global Head of Late Phase Studies for George Clinical. Prior to joining George Clinical, Sean was the Executive Vice President and Managing Director of Vector Oncology overseeing the Global Pharma Services team including early phase and observational research. Sean is a recognized industry leader in Phase IV clinical trials, post-marketing surveillance programs, and patient registries. His experience spans all major therapeutic areas and all phases of research and development.

Contact Sean Hart

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