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To learn more about the historic, category-opening switches supported by PEGUS in 2023, click here: OTC Nasal Naloxone and here: Progestin-Only Oral Contraceptive.

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Innovative Research That Solves Problems

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Welcome to PEGUS Research!

PEGUS is a different kind of contract research organization (CRO) – small, agile, and highly responsive. With 35 years of experience, we’re experts in studies aimed at optimizing medication and device labeling, evaluating medication compliance and other behaviors, and gathering patient reported outcomes (PRO). We’re skilled at devising novel design approaches and methods to answer challenging research questions.

When you work with us, you get thoughtful, unwavering attention from our team of true experts. We’re highly communicative and attuned to sponsors’ needs, energetic in meeting timelines, and adept at managing complex programs and studies, including those for difficult to recruit populations.

We focus on cutting-edge science and intelligent strategic development to help successfully meet FDA / Health Authority requirements for your product or application.

Explore our service offerings here:

OTC Switch Consumer Behavior Studies

OTC Switch Consumer Behavior Studies

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Rx to Non-Prescription with Additional Conditions for Use (“ACNU”)

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Human Factors and Usability Testing

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Decentralized and Traditional Clinical Trials

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PMTA and MRTP Research

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Supporting Research Services

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What Makes Us Different

Better Science

Our heritage is in the social sciences, so we approach research questions for studies differently than those with backgrounds purely in experimental research. This results in innovative study designs that are scientifically-sound, uniquely-tailored to answer specific questions, and defensible for regulators.

Better People

Our scientific and clinical staff come from a wide range of disciplines, including Psychology, Sociology, Medicine, Neuroscience, Public Health, Nursing, Statistics, and others. Our key staff tend to stay at PEGUS over the long-run: collectively, we have many decades of experience with successful research. This depth of training gives us unique consulting and operational skill, and insightful awareness of FDA needs.

Better Research

PEGUS has a unique culture that places client needs as our highest priority and mission. This means we do what we say we will do, on time, every time. We know the way to secure and keep business is to provide the highest level of responsiveness and attention to client needs and requests, month after month and year after year. Ultimately, our science, our people, and our commitment to clients simply make our research better.


Years of research experience


First-in-class US OTC switches


Studies across products and indications

Our People

Clark Richardson, MPH

President & CEO

Clark began work in OTC consumer research in 1997, after completing graduate studies in Public Health. Since those early days, Clark's responsibilities have ranged from Assistant Project Manager to SAS programmer, Project Manager, Director of Operations, Vice President, President, and most recently CEO at PEGUS Research. He is actively involved in industry and scientific issues and is a frequent presenter on research methods and innovation.

After completing scores of OTC consumer studies (including numerous label comprehension, self-selection and actual use projects) for sponsors over the last 21 years, he brings a strong orientation toward OTC-switch program strategy, regulatory agency interaction, study design, analytic issues and solid, practical, high-quality research. In a period of intensive growth and evolution at PEGUS, Clark directs the full range of operations across our functional areas.

Kimberly Anderson

Kimberly Anderson, MPH

Vice President Clinical Operations

Kimberly joined PEGUS Research in 1998 and has been involved with many aspects of operations within PEGUS since that time. She obtained her Master's degree in Public Health at the University of Utah in 2009. She has extensive experience in the design and conduct of consumer behavior studies, including label comprehension, self-selection and actual use trials. She currently oversees project support departments, including Data Management, Regulatory and Site Coordination and provides leadership and oversight for the management of sponsor programs. As Vice President of Clinical Operations, she currently oversees project support including Data Managment, Regulatory and Site Coordination. She has extensive experience managing actual use trials, label comprehension studies, and self-selection trials. She is also a highly qualified clinical research assistant and has considerable monitoring experience.
Sarah Farnsworth

Sarah Farnsworth, PhD

Vice President Scientific Affairs

Sarah has been with PEGUS since 2009 and has previously served as a Project Manager and Director of Clinical Operations. She is experienced in study design and implementation with a variety of behavioral research studies, including qualitative, label comprehension, self-selection, actual use, and human factors studies. Sarah currently oversees the Project Management and Statistics departments at PEGUS.

With an undergraduate degree in Psychology and doctorate in Neuroscience, she brings extensive research experience and a unique expertise to PEGUS in the areas of Neuropharmacology and the biological basis of human behavior. Sarah is also an adjunct professor of Psychology at Weber State University in Ogden, Utah where she teaches undergraduate Psychology and Neuroscience courses.

Russ Bradford

Russell Bradford, MD, MSPH

Vice President of Medical Affairs

One of PEGUS Research's first employees, Russ earned his MD from the University of Utah School of Medicine in 1999. He subsequently pursued post-doctoral training at the University of Alabama at Birmingham in Internal Medicine and Pediatrics, with subspecialty training in Pediatric Infectious Diseases. Along the way, he earned his MSPH from the UAB School of Public Health.

PEGUS Research News


New Staff

PEGUS is pleased to announce the following additions to our team: Lisa Fairfax, MBA: Lisa is our new Business Operations Manager, with responsibility for key business…
John Evans
February 8, 2023

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