About us

Palmetto Clinical Trial Services, LLC is a multicenter clinical research site located in the Greenville, South Carolina area. Our sites offer patients the most current technologies and treatments available which allows our community to be on the cutting edge of research. Palmetto Clinical’s dedicated and experienced team bring the highest quality study conduct in their prospective therapeutic areas and provides genuine compassion and care to each and every patient who agrees to participate in our clinical trials.

Mary Sanda, RN, BSN, CCRC
Managing Partner

Mary graduated from the University of South Carolina in 1994 with a Bachelor of Science Degree in Nursing. She began her research career in 1997 conducting multi-specialty trials and received her Certified Clinical Research Coordinator (CCRC) designation in 1999. Mary was one of the founding partners of Palmetto Clinical in 2002.

Graham Howle
Business Manager

Graham received his Bachelor of Science in Economics from Clemson University in 1994. He is a business consultant and joined Palmetto Clinical in 2017 to assist with business development and financial management.

April Butler, CMA

April received her medical assistant registration from American Medical Technologist in 2015 and recently received her CPC through the AAPC. She worked in the field of pain management for 9 years as a Clinical Coordinator before becoming a Research Coordinator at Palmetto Clinical in 2016.

Angela Cauble, RN, CCRC

Angela received her Associate Degree in Nursing from Piedmont Technical College in 2007 and her Certified Clinical Research Coordinator designation in 2016. She worked as a hemodialysis nurse for seven years prior to starting her career at Palmetto Clinical in 2014 as a Clinical Research Coordinator. Angela received her Certified Clinical Research Coordinator (CCRC) designation in 2016 and has proven to be a valuable member of the Palmetto Clinical team.

Starsha Rhinehart, CMA CCRC

Starsha received her medical assistant certification from Greenville Technical College in 2006. She worked in the field of pediatrics for 10 years before becoming a research coordinator in Pediatric Academic & Research where she spent the next for four years. Starsha came to Palmetto Clinical in 2015 and has been a wonderful asset to our dermatology office. Starsha received her Certified Clinical Research Coordinator (CCRC) designation in 2020.

Kathie White

Kathie graduated from SUNY Cortland in upstate New York in 1985 and moved to South Carolina in 1994. She has worked for Palmetto Clinical as office administrator since 2003. Her ability to manage the office independently and confidently helps us keep our sites running smoothly and efficiently. Kathie’s attention to detail and organizational skills make her a strong asset to the Palmetto Clinical team.


Kayla received her certification as a Medical Assistant from Greenville Technical College in 2011. She had been performing administrative and clinical tasks in various healthcare environments with an emphasis on providing care to patients before joining Palmetto Clinical in 2019. Her understanding of medical procedures and excellence in administrative tasks make her a great addition to the Palmetto Clinical team.