Meet the Leadership Team
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Jeffrey Zhang, Ph.D.
Principal Biostatistician
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Ying Liu, Ph.D.
Director of Biostatistics
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Sam Zhu, Ph.D.
Director of Biostatistics
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Pamela Gordon
Director of Operations and QA
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Judie Rim
Manager of Biostatistics
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Tim Lovell
Director of Business Development
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Prof. Chris Barker, Ph.D.
Principal Statistical Consultant
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Liviu Elama
Director of IT Systems and Infrastructure
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Patty DeDominic
Business Advisor
Jeffrey Zhang, Ph.D.
Principal Biostatistician
With over 17 years of experience, Dr. Jeffrey Zhang is an expert statistician with specialized knowledge in the clinical development process. He finished both his Master’s degree (1999) and Ph.D. (2003) in statistics at Carnegie Mellon University, where he participated in various research projects in both physics and health-related topics. While still a Ph.D. student, he began his professional career in 2002 working for a large contract research organization (CRO), where he performed several analytical tasks related to the drug development process.
In the following years, Dr. Zhang further refined and developed his statistical skills, gaining in-depth knowledge of the submission process for regulatory agencies in the United States, Europe, and Japan. He is extremely adept at structuring data based on the FDA submission standards as set forth by CDISC, including SDTM and ADaM formats. He has personally overseen IND and NDA proposals for several therapeutic areas, such as renal diseases, neurological diseases, and cancer treatments. Additionally, he has overseen the protocol development, SAS programming, and statistical planning of trials in all clinical stages, including Phases I-III and post-market research.
In 2008, Dr. Zhang created Princeton Pharmatech with the vision of becoming a reliable and foremost biostatistical CRO to provide high-quality analytical services for the biotechnology and pharmaceutical development industries. As Princeton’s managing partner, he is dedicated to ensuring each new project is evaluated by experts to personalize solutions for each unique dataset. His experience in clinical development make Dr. Zhang a superior and respectable leader in providing biostatistical analyses for regulatory submissions of medical treatments and devices.
Ying Liu, Ph.D.
Director of Biostatistics
Dr. Ying Liu is a highly knowledgeable biostatistics professional with specialized expertise in clinical trial design and analysis. After receiving his Master’s degree in biostatistics from the Beijing Technology and Business University in 2002, he pursued his Ph.D. in biostatistics from the University of North Carolina at Chapel Hill. During his graduate studies, he worked as a research assistant in both China and North Carolina, where he gained his earliest experiences in clinical research. Upon finishing his doctoral degree in 2007, he continued his professional career conducting statistical analyses for clinical trials as a research scientist with Brown University. Currently, Dr. Liu serves as an Expert Statistician & Partner with Princeton Pharmatech.
With over 22 years of experience working as a statistician and research project manager, he has developed comprehensive analytical skills necessary for regulatory approval review. He has extensive expertise in protocol review and development of clinical trials in phases I through IV, especially in the therapeutic areas of oncology, immunology, and gastroenterology. Dr. Liu is capable of utilizing complex biostatistical methods including longitudinal analysis, survival analysis, and Bayesian models. He is also highly competent with programming and analytical software such as SAS, R, STATA, C++, nQuery, Mplus, Matlab, StatXact, and WinBUGS. Additionally, he is adept in structuring data in the CDISC formats required for regulatory submissions, such as ADaM and SDTM.
Dr. Liu has dedicated his professional career to providing biostatistical consultation to contract research organizations (CROs) working in the biotechnology and pharmaceutical development industries. He is an expert in clinical research biostatistics and data management, and has a vast understanding of complex problem-solving and analytical techniques. His knowledge and skills are invaluable to the Princeton Pharmatech team and our research partners.
Sam Zhu, Ph.D.
Director of Biostatistics
Dr. Sam Zhu is a skillful analyst with a background working in fields such as mathematics, computer science, and statistics. He has nearly two decades of experience in conducting statistical analyses and data management for clinical research. Over the years, he has gained specialized expertise in structuring data in accordance with FDA submission standards, and the design and implementation of clinical trials, especially in the therapeutic areas of gastroenterology, oncology, and immunology. He is also exceptionally knowledgeable in programming, particularly using SAS, C++, Java, and Matlab.
Dr. Zhu has received 3 advanced degrees in computational sciences, including a Master’s degree in Theoretical Physics from Hunan University (1991), a Master’s degree in Computer Science from Queen’s University (2003), and his Ph.D. in Applied Mathematics from the University of Western Ontario (2001). Additionally, he has completed several graduate-level courses in statistics at Rutgers University. He has spent the majority of his career working as a statistical programmer and consultant for clinical trial research of newly developed pharmaceuticals.
Through this extensive experience, Dr. Zhu has become an expert in structuring data as per the standards set forth by CDISC, including ADaM and SDTM formatting for FDA submission. He has been a member of the CDISC ADaM team since 2011, including serving on the Integration sub-team and as a working member of the FDA PhUSE (Pharmaceutical Users Software Exchange) traceability team. In these roles, he co-authored the Traceability Guide for the biotechnology and pharmaceutical industries and played a key part in updating the CDISC ADaM Integration Guide, resulting in the creation of ADaM IG v1.1. Dr. Zhu is recognized as a highly knowledgeable professional in data structuring and traceability for regulatory submission and brings this know-how to the Princeton Pharmatech team as an Expert Statistician and Partner.
Pamela Gordon
Director of Operations and Quality Assurance
Pam is a human resources professional with over 22 years of experience in the development of start-up organizations and the implementation of policies and procedures to reach business goals. Her education and work experience have provided her with a unique skill set, including program management, customer and employee relations, strategic planning, policy development, and regulatory compliance. She is an innovative thinker, problem solver, and business partner with extensive knowledge of organizational strategies, optimization of operational systems, and managing human relations and overall well-being.
Pam is highly detail-oriented and has focused her professional career on improving the quality of human relations within several businesses. She is also passionate about her own continuous improvement as an HR professional, earning progressively more in-depth degrees and certifications. Following her Bachelor’s degree in Engineering Technology, Pam went on to receive a Certificate in Industrial Relations from the University of Santo Tomas, and her Diploma in Industrial Relations from the University of the Philippines School of Labor and Industrial Relations. She then continued her educational career by receiving her Master’s degree in Human Capital Leadership from the Singapore Management University in 2013.
Her dedication to understanding the human component behind successful business operations, along with her expertise in strategic planning and quality assurance make Pam an important member of the Princeton Pharmatech team. Here, she has served as the Director of Operations & Quality Assurance since 2013. Her organizational skills and human resources expertise continue to play a vital role in the smooth functioning of the company and overall excellence in the quality of service we provide.
Judie Rim
Manager of Biostatistics
After receiving her Bachelor’s degree in molecular biology and biochemistry from Rutgers University in 1997, Judie continued on her educational pathway to earn her Master’s degree in biostatistics from Columbia University in 2000. While still in graduate school, her professional career began as a statistical intern with the Department of Health for New York City in 1999. Since then, she has continued honing her analytical expertise to provide high-quality statistical consultation for clinical trial design, implementation, and finalization. Currently, she serves as an Expert Statistician & Partner for Princeton Pharmatech, where she utilizes her analytical skills and complex problem-solving capabilities to guide our partners through their clinical research.
With nearly 20 years of experience working as a statistician within the pharmaceutical industry, Judie has developed specialized expertise in preparing analytical reports for regulatory submission. Prior to 2011 when she joined our team at Princeton Pharmatech, she gained vast knowledge of the approvals process by working with pharmaceutical and biotechnology companies such as Allergan, PPD Biotech, and the Nathan S. Kline Institute for Psychiatric Research. Because of these research experiences, she has the ability to provide vital elements of statistical support in clinical research, from protocol development to analytical problem-solving and interactions with regulatory agencies.
Additionally, Judie is an expert statistical programmer, with extensive experience in complex analytical methods necessary for safety and efficacy trials, such as repeated measures, mixed models, and exploratory analyses. She has conducted statistical analyses for research in various therapeutic areas, including neurology, immunology, cardiology, ophthalmology, gastroenterology, and psychiatry. While working as a lead statistician for Allergan Pharmaceuticals, Judie received three awards for her excellence. For the past 8 years, she has provided her invaluable, award-winning knowledge and skills to our team of biostatistical experts.
Tim Lovell
Director of Business Development
Tim Lovell is an entrepreneur, innovator, and business development expert. He has built his professional career by identifying needs within businesses and communities, and finding working solutions to fulfill those needs. His substantive management and sales experience comes from nearly three decades working in and building his own business in the remediation and construction industries. He is the founder and former owner of Interactive Occupational Training and CCS, Inc., businesses through which he trained and certified over 2,500 construction and disaster restoration professionals. He is an expert trainer in environmental cleanup operations and mold remediation.
His company also removed mold in hospitals, schools, hotels, and homes. Additionally, he has worked with the U.S. military to develop programs mitigating health hazards to service members, their families, and civilian employees. This work has included the development of restoration and prevention programs at the Naval Submarine Base New London in Connecticut, and programs to maintain healthy environments in housing and commercial buildings for the Army, Navy and Air Force. Currently, Tim serves as the Director of Business Development for Princeton Pharmatech, where he employs his networking and team building skills to generate new opportunities and develop relationships with our potential clients.
He has a passion for helping businesses grow through effective strategizing and communication. In his free time, he develops creative solutions through inventing, and is the creator of The Organizing Checklists, an application that is useful for numerous industries. He also has a passion for the great outdoors, and in particular, finds joy fishing.
Prof. Chris Barker, Ph.D.
Principal Statistical Consultant
Here at Princeton Pharmatech, Prof. Chris Barker plays a vital role as an expert statistician and scientific advisor. With over 30 years of experience, he is highly accomplished in biostatistics, clinical research, and regulatory submissions. After obtaining Master’s degrees in both Economics (Northwestern University) and Biostatistics (University of Pittsburgh), he pursued a Ph.D. in Biostatistics at the University of Illinois Health Sciences Center, where he graduated in 1981. His multi-disciplinary education has provided him with unique skills and perspectives, including expertise in designing novel analytics in health economics and outcomes research.
Dr. Barker began his statistical career in clinical trial drug development in 1983, and has since overseen the analytical processes of various pharmaceutical and biotechnological products, including Ambien®, Cytovene®, and CELLCEPT®. He specializes in first-in-human studies, adaptive clinical trial designs, and genomics research. Additionally, he is an expert in statistical programming utilizing SAS, R, SPSS, and CTMS. His many years of working in the drug development industry have given him ample experiences preparing clinical results for regulatory approval, such as IND preparation and NDA submission.
Further, Dr. Barker is recognized as a well-respected and highly-qualified statistician among academic publishers, serving as a statistical peer reviewer for 4 notable publications: the Journal of Clinical Oncology (14 years), the Journal of Biopharmaceutical Statistics (12 years), Value in Health (12 years), and the Journal of Controlled Clinical Trials (10 years). In fact, he has also provided analyses for dozens of journal articles, abstracts, posters, and presentations. He has shared his statistical expertise through several academic and professional affiliations, including his role as an Adjunct Associate Professor of Biostatistics at the University of Illinois Chicago School of Public Health, and his membership with the American Statistical Association.
Liviu Elama
Director of IT Systems and Infrastructure
Liviu is a highly experienced IT professional with extensive knowledge of infrastructure architecture. He began his IT career in 2005 while still working toward his Bachelor’s degree in Electronics, Telecommunications, and Information Technology at the Politehnica University of Bucharest (Romania). After finishing his degree in 2007, Liviu continued his technical career, holding positions with companies in Romania, New Zealand, and the United States. These experiences have provided him mastery in software development processes and the technical skills necessary for developing information technology systems and infrastructure.
On top of his education and professional background, Liviu has received specialized training to stay up-to-date on the latest changes and developments in technology. He has received a Professional-level certification as a Solutions Architect through Amazon Web Services, demonstrating his dedication to systems optimization and adapting to a cloud-based world. Additionally, he is exceptionally skilled in configuration management, networking services, disaster recovery, and security concepts.
Since 2010, Liviu has served as the Director of IT Systems and Infrastructure for Princeton Pharmatech. In this capacity, he has managed the planning, organization, and execution of all IT functions. He is an expert in maintaining data safety, and as such, he constructed the entire security infrastructure to protect data for both the company and our clients. Overall, Liviu plays a vital role in the flawless execution of our high-quality biostatistical services, and ensures all clinical data is well-protected.
Patty DeDominic
Business Advisor
After decades of building her own multimillion-dollar enterprise, it is safe to say Patty is a highly experienced business leader, entrepreneur, and executive. Her journey began with the building of CT Engineering & PDQ Careers, a 600-employee recruiting and engineering contracting firm that conducts business across the USA and 3 other countries. After selling this firm in 2006, which is now part of a leading billion-dollar staffing organization, she focused her efforts on helping other entrepreneurs build their businesses as an angel investor and business consultant. Currently, two of her business clients have achieved unicorn status (valued at over $1 billion), and many are on the Inc 500 fastest-growing companies list. Additionally, she has worked closely with Dr. Jane Goodall as a board member and chair of governance for the Jane Goodall Institute. With Patty’s guidance and assistance, Dr. Goodall’s Roots & Shoots, a network of kids making a difference for their communities, the environment, and animals, has been expanded to over 60 countries worldwide.
Patty has received several awards and accolades for her work, including being named CEO of the Year by the LA Business Journal, along with receiving Lifetime Achievement Awards from two US Presidents, and the Founders Award from the National Women’s Business Ownership Corporation. Active in the community and philanthropy, some of her chairmanships include the LA Chamber of Commerce, the National Association of Women Business Owners, and the Foundation for SCORE.org, where she has helped start several private million-dollar fundraising projects. She has also served as the chair of the board of Compassioncantwait.org, which helps families of children diagnosed with critical illnesses. Over 27 years, she has founded and acquired companies that have placed over 250,000 people in the UN Development Program, including participants in the US and Japanese space programs, programmers in the Philippines, and government strategists in Jamaica.
Patty is a valued consultant and expert for Princeton Pharmatech, where she provides her expertise as our Business Advisor. Her knowledge and experience provide us with unmatched guidance in growing our organization and achieving success. When she is not working, she enjoys spending time with her animals including chickens and donkeys. She considers herself fortunate to live in the “countryside” on Wings Ranch in Santa Barbara county.