Meet Our Physicians
Dr. Evelyne Davidson, M.D. – Principal Investigator
Dr. Davidson is a board-eligible internist with over 37 years of experience in patient care and management.
Dr. Davidson has been a Principal Investigator at New Phase since 2012 and has conducted over 90 trials. She has extensive experience in most primary care indications and is actively involved in the care of every clinical research subject.
Dr. Davidson is present in informed consent discussions and personally evaluates all inclusion/exclusion criteria. Unlike most Principal Investigators, Dr. Davidson not only provides oversight, but she also has an active role in the day-to-day coordination of each trial.
Dr. Natalie Clarke, M.D. – Principal Investigator
Dr. Clarke started working at New Phase in March of 2016. She graduated from Penn State University with a Bachelor of Science degree in Biology in 1996. After college, she participated in 2 years of research investigating the effects of various vasodilators on atherosclerotic arteries.
From 1998-2002, she attended The Medical College of Georgia, earning her MD and completed her anesthesiology residency in 2006.
While working at New Phase, Dr. Clarke has been involved in several studies including ones pertaining to diabetic neuropathy, IBC, COPD, asthma, RA and chronic low back pain.
Dr. Amanda Miller, M.D. – Principal Investigator
Prior to joining New Phase, Dr. Miller worked as a hospitalist in Knoxville from 2007-2021 and then as Medical Director at a local veteran’s home. She has also worked in addiction medicine.
Dr. Miller believes that excellent patient care begins with clinical research. After years of direct patient care, she is looking forward to making a difference in a new way.
Throughout her career, Dr. Miller has contributed to a variety of clinical research studies, reflecting her dedication to scientific advancement. Her research involvement includes studies focusing on asthma, cardiovascular disease, chronic obstructive pulmonary disease (COPD), and obesity.
Dr. Sarah Radley, M.D. – Principal Investigator
Dr. Radley started working at New Phase Research and Development in April 2025. Prior to her career in medicine, she worked as a licensed marriage and family therapist. Her biopsychosocial lens of patient care led her to pursue a career in medicine to provide holistic medical care.
She received her medical degree from the Brody School of Medicine at East Carolina University. She then completed residency in Family Medicine at UTHSC in Murfreesboro, TN. She has also served as a primary care physician at the VA.
Dr. Radley has a love of learning and is excited to contribute to the advancement of the medical field through clinical research. She is gaining involvement in several studies regarding obesity, chronic low back pain, COPD and asthma.
Meet our Study Coordination Staff
Our dedicated research site is staffed with 1 Phlebotomist, 1 Dietitian, and 5 full-time Clinical Study Coordinators, who work alongside Dr. Clarke, Dr. Miller, and Dr. Davidson to move each trial in the right direction. Our Study Coordination staff consists of 1 RN, 1 LPN, 1 B.S degree, and 2 Certified Clinical Research Coordinators (CCRC). With over 25 years of nursing and research experience, our Coordinators are some of the best in the industry.
They are each assigned a maximum of three clinical trials. This allows each Coordinator to fully dedicate their time to each trial they undertake while providing their subjects the time and follow-up they truly need. Additionally, our coordinators are AED, CPR, IV, and IATA trained/certified.
Our Coordinators function in a team-focused environment with 24-hour access to the Principal Investigator and Clinical Research Director. Our team atmosphere and open communication allow us to provide cohesive and consistent care to our subjects as well as accurate and detailed data collection.
Meet our Specialists
NPRD has a full-time team of specialists and managers, dedicated to keeping our premier research facility the best in West Knoxville. Responsibilities include running the facility’s day-to-day operations, monitoring study regulations and documentation, collecting patient information for our growing volunteer database, and being the first friendly face you see when walking in. This team includes our Office Manager, E-source Specialist, Regulatory Specialist, and Receptionist.
We have a team of recruiters who are specialized in patient enrollment, as well as, an internal marketing and advertising team. Allowing New Phase Research & Development to efficiently maximize enrollment and meet goals set by each sponsor. We utilize a variety of standard local advertising campaigns including print, digital targeting, radio, and television. We have developed very successful referral relationships with multiple specialties in Knoxville and the surrounding area. This team includes our Recruitment Specialists and Marketing Specialist.
Reviews
“Awesome place to go to do research trials! Staff is very friendly. I like that it is a small business created in Knoxville.”
“I felt so welcomed when I entered this research center from the friendly front office to the medical staff. Building is spotless! Give this place a try if you’re looking to get into a clinical trial.“
“Great screening tools to get the perfect fit between test subject and investigative team. Warm, personable staff.”
“Doctors, Nurses, Staff and even the young lady that takes your blood are pleasant, welcoming and efficient. I was in a 9 month trial and I enjoyed seeing everyone on my monthly visits. The one thing you can be confident in, is that your health is their primary concern.”