Fragile X Research Team | UC Davis MIND Institute

Research Team

  • Abigail Borbe, CCRP
    Senior Clinical Research Coordinator

    Abigail Borbe, CCRP

    Abigail Borbe is a Senior Clinical Research Coordinator supporting the Hagerman Team and Genomic Medicine. She earned her Bachelor of Science in Marine Coastal Sciences and her Bachelor of Arts in Sociology from the University of California, Davis. She has worked for the MIND Institute since 2016 and has been driven by a need to enrich the lives of research participants by providing them with all the tools and resources they need in order to make a difference in the world. She is a certified clinical research professional through the Society of Clinical Research Associates. She is responsible for the management, coordination, and regulatory oversight of FDA-regulated studies, clinical registries, government-funded research, and investigator-initiated research studies in multiple therapeutic areas. 


  • Courtney Clark, MSN, RN, CNL
    Clinical Research Coordinator

    Courtney Clark, MSN, RN, CNL

    Courtney Clark is a Clinical Research Coordinator who joined the Fragile X Research and Treatment Program in 2019. Having a twin brother with fragile X syndrome and a grandfather with fragile X-associated tremor/ataxia syndrome (FXTAS) inspired her passion for working with those affected by fragile X. Courtney graduated from UC Davis in 2020 with degrees in Neurobiology and Spanish and obtained a master's degree in nursing from the University of San Francisco. Courtney is thrilled to be a part of a team that serves patients and their families just like hers.


  • Melissa Heys
    Assistant Clinical Research Coordinator

    Melissa Heys

    Phone: 916-703-0301

  • Lisa Makhoul
    Clinical Research Coordinator

    Lisa Makhoul

    Lisa Makhoul has been working with Professor Paul Hagerman since 2001 and joined MIND Institute Medical Director, Randi Hagerman, in 2012. She plays a vital role as a connection between the faculty and their Departments of Biochemistry & Molecular Medicine and Pediatrics, as well as the MIND Institute, School of Medicine, and others. Her main focus is to provide support for their research programs, both in basic and clinical fields. As a clinical research coordinator, she handles various responsibilities, including communicating with participants for the fragile X tissue repository and doing regulatory work for different clinical trials and research studies at the MIND Institute. Additionally, she takes charge of several administrative tasks, such as coordinating and submitting grant proposals, hiring staff for studies, collaborating with finance teams, and doing editing.


  • Hazel Maridith Biag
    Staff Research Associate II

    Hazel Maridith B. Biag, M.D.

    Hazel Maridith B. Biag administers neurocognitive assessments for several clinical trials and research studies focusing on fragile X syndrome and fragile X-associated tremor/ataxia syndrome (FXTAS). Hazel graduated from the University of California, San Diego (UCSD) with a bachelor of science in Human Biology and went on to receive her medical degree from the University of the East, Ramon Magsaysay (UERM). In the future, Hazel plans to further her medical training by pursuing residency in general pediatrics and to further subspecialize in developmental and behavioral pediatrics.

    Phone: 916-703-0331 

  • Ellery Santos, M.D., M.P.H.
    Clinical Research Coordinator

    Ellery Santos, M.D., M.P.H.

    Ellery Santos joined the Fragile X Research and Treatment program in 2018 administering neurocognitive assessments and coordinating research study visits. Ellery graduated from UC Davis in 2004 with a degree in Biological Sciences, obtained a master’s degree in public Health from Touro University and a medical degree from St. George’s University, West Indies. His research has focused on fragile X-associated tremor/ataxia syndrome (FXTAS) and following those affected with FXTAS over time.