Our People


At Advanced Clinical, our employees provide the support, structure, and professional background for better clinical trials and research. We believe progress is the result of exceptional leadership, and we aim to achieve the highest level of service every day. Our resourceful and compassionate CRO team brings many years of industry experience, ensuring success across multiple clinical functions through the use of the latest communication tools and research methods.

Meet the people who lead the way to a better clinical experience.

Leo Sheridan
Chief Executive Officer

Leo built Advanced Clinical in 1994 as a clinical research solutions company supporting the unique needs of pharmaceutical, biopharmaceutical, biotech, and medical device companies. Leo is responsible for driving the growth of Advanced Clinical, and he’s focused on providing clients with a better clinical experience. Today, Advanced Clinical offers end-to-end contract research organization (CRO) services, patient recruitment and retention, functional service provider (FSP) offerings, and strategic staffing solutions.

Mr. Sheridan is the founder, CEO, and President of The Advanced Group of Companies, comprising Advanced Clinical, Advanced Resources, the WunderLand Group, and Advanced RPO. He earned a Bachelor of Science degree in Business Administration from St. Michael’s College in Vermont, and he completed the Executive Management Program at Northwestern University’s Kellogg School of Management. He is a recognized industry leader and has provided leadership to a variety of professional organizations, including the National Association of Computer Consulting Businesses, American Staffing Association, and Young Presidents’ Organization.

Julie Ross
President and CEO

Julie is a tenured executive leader responsible for all aspects of strategic planning, corporate alliances, sales and marketing, operations, financial management and regulatory compliance for Advanced Clinical and is a long-time active member of Healthcare Buisinesswoman’s Association (HBA) currently serving as Vice-Chair of the Global Board. She is a tenured executive leader who has been instrumental in leading the growth, profitability and overall success of multiple companies and has held positions in executive leadership and corporate officer roles including leadership at a top five CRO. Her oversight of global functional areas focuses on innovative methods for reducing the time and cost within clinical trials.

With over 25 years of clinical research experience, Julie has participated in fund-raising, mergers, and acquisitions, authored many clinical research articles, and is a well-known industry speaker. She is a change management expert and industry thought leader who has successfully led multiple company integrations, implemented a variety of cutting-edge technologies and platforms, and served 6 years as Board President for a non-profit community group where she navigated a headquarter change twice and raised money through angel investors. Personally, Julie is a wife and mom to four grown children, is graduate of the University of Wisconsin, LaCrosse with a bachelor's degree in Nuclear Medicine Technology and received the coveted HBA Chair Award in 2019 and the PharmaVoice 100 Red Jacket award in 2020.

Jason Casarella
Executive Vice President, Business Development and Marketing

Jason is an accomplished drug development professional who is responsible for the overall Business Development, Marketing, and commercial strategy for Advanced Clinical. Jason’s diverse experience from 25 years in the CRO industry spans clinical research, proposal development, business development, marketing, general management, and staffing/functional services.

His background includes the development of business partnerships in small, midsize, and large organizations, as well as integrating and leading teams to drive performance and efficiency. Prior to joining Advanced Clinical, Mr. Casarella supported the growth and expansion of a midsize CRO through acquisition and integration to create a top-five global CRO.

Jason is a graduate of DeSales University with a B.S. in Biology, where he is an appointed representative of the President’s Advisory Council. He also holds an MBA in Marketing and Strategic Management from the Villanova University School of Business.

Cheryle Evans
Senior Vice President, North American Operations

Cheryle is a senior-level executive with extensive, progressive clinical research experience and is responsible for the strategic planning and tactile operations in project management, clinical monitoring, site activation, safety, and document management. She has led global teams across multiple disciplines, successfully utilizing automation to improve quality and streamline operations. Prior to joining Advanced Clinical in 2013, Cheryle was the VP of Clinical Monitoring, NA, with inVentiv Health Clinical, where she led the optimization of three Global Strategic Units: Global Study Start-Up, Expedited Safety Reporting, and Document Management and Publishing. Prior to her tenure with inVentiv Health Clinical, Cheryle was part of a strategic team with Essential CRO, where she supported the transition and growth from a Site Management Organization to a top-five, global, full-service CRO. Cheryle has therapeutic expertise in cardiovascular, urologic, dermatologic and women’s/men’s health clinical trials.

A life-long Chicagoan, Cheryle is a registered nurse in the state of Illinois, with a specialty in critical care nursing, and she attended the University of Illinois at Chicago. She is a published thought leader on implementing risk-based monitoring for midsize pharma, biotech and device companies and a frequent speaker at industry conferences.

Steve Matas
Senior Vice President, Strategic Resourcing

Steve has over 20 years of strategic staffing experience across the information technology and life sciences industries. Mr. Matas is responsible for leading the staffing efforts across the company, including recruitment, sales, and operations. Prior to joining Advanced Clinical, Steve served as Vice President of Sales, Health and Life Sciences, IT Staffing and Solutions at DISYS, where he was responsible for the Healthcare and Life Sciences technology practice and supported 15 of the largest global Healthcare and Life Sciences clients. He has built and led a global sales and delivery team focused on growing the IT staffing and services business.

Steve has a degree in Finance from California State University, Chico, and has completed numerous sales and leadership training programs, including Sandler Training, Holden Game Changing Sales, and Strategic Leadership Training from the School of Business at the University of Milwaukee.

Caroline Redeker
Senior Vice President, Corporate Development

Caroline is a results-oriented and accomplished professional with more than 25 years of clinical research experience, and she’s responsible for driving global expansion, creating new service offerings, and building corporate efficiencies for Advanced Clinical. Prior to joining Advanced Clinical, Ms. Redeker has worked within multiple contract research organizations, a site management organization, and one of the first professional independent research sites. She has previously served in a corporate development role, primarily focused on the acquisitions and merger integrations of three companies. Caroline has also served in roles such as Corporate Officer, Board Secretary, and multiple-level roles within patient recruitment, site budget/contract negotiations, business development, and marketing. In the past decade, she has led and grown multiple business development and marketing teams and managed key strategic client relationships. Caroline is driven by the perspective of the client and is passionate about delivering exceptional service and a better overall experience for Advanced Clinical’s clients.

Ms. Redeker is a graduate from Central Michigan University and holds a bachelor’s degree in Business Administration with a double major in Finance and Management.

Kimberly Wanick, MS, RQAP-GCP, ASQ CQA
Vice President, Compliance and Quality

Kimberly is a tenured leader responsible for all aspects of quality and compliance at Advanced Clinical. Ms. Wanick has quality assurance experience in computer and pharmaceutical manufacturing, clinical and late-phase research, and auditing and compliance in computer, clinical, and research environments. Kimberly holds certifications as a Continuous Improvement Green Belt, Certified Quality Auditor from the American Society for Quality, Registered Quality Assurance Professional in Good Clinical Practices from the Society for Quality Assurance, and most recently as a Project Management Professional from the Project Management Institute. She is also a member of the Society for Quality Assurance and is a Senior Member of the American Society for Quality.

Kimberly received her master’s degree from the University of Cincinnati in Pharmaceutical Sciences with a Specialization in Drug Development and her bachelor’s degree from Colorado State University in Biological Sciences.

Stacey Arrambide
Senior Vice President, Functional Service Solutions

Stacey Arrambide, M.S., Senior Vice President, FSP and Managed Staffing, has over 21 years of global statistical and data management experience across a broad range of therapeutic areas. Stacey oversees strategic growth and operational delivery of FSP and managed staffing services for Advanced Clinical.

Prior to joining Advanced Clinical, Stacey was Senior Director, Statistics, at Chiltern where he was responsible for North American teams and developing and implementing the functional area’s strategy. He has held numerous leadership positions of increasing responsibility within biometrics for other CROs and led statistics, statistical and clinical programming, and clinical data management departments and projects globally. Stacey is a graduate from Sam Houston State University with both a Bachelor’s degree in Mathematics and Master’s degree in Statistics and has contributed to and published numerous articles.

Graham Belgrave
Senior Vice President, Head of Global Medical & Regulatory Affairs and Managing Director, Europe

A graduate of Warwick University, Graham Belgrave has over 36 years of experience successfully leading pharmaceutical development across Clinical Operations (Phases I-IV), Outsourcing & Contract Management, Project, Program and Vendor Management. After starting his career in clinical operations, Mr. Belgrave moved to senior management roles overseeing clinical operations and later outsourcing and vendor management functions for global top pharma and biotech companies. Mr. Belgrave is an active member and Honorary Fellow of the Institute of Clinical Research UK (ICR), a Fellow of the Royal Society of Medicine, a Chartered Scientist and a Member of the Institute of Biomedical Science, an Assessor for the UK Science Council and a Companion of the Chartered Management Institute.

Dr. Andreas Amrein
Senior Vice President, APAC & Japan and Managing Director, Europe & Canada

Dr. Amrein is an accomplished healthcare industry leader with more than 20 years of international experience elevating profitability and performance of global Fortune 100 companies and dynamic start-ups through dynamic situations. He has managed P&Ls with sales over $1.4 billion and led cross-functional teams of 500+ globally and across over 30 geographies from regulated and reimbursed to emerging markets. Dr. Amrein specialized in rapid commercial expansions, launches, market entries, transformations, acquisitions, integrations, and partnerships foremost across Asia. His track record includes building teams, developing talents and fostering internal and external relationships for both complex matrix organizations and entrepreneurial entities across functions and cultures. Dr. Amrein also has advanced expertise in M&A leadership, due diligences, investment strategies, and integrations of companies. His wealth of experience will be leveraged to further expand and establish Advanced Clinical’s experience internationally.

Interested in learning more about the people behind a better clinical experience? Explore Advanced Clinical’s mission through our own employees’ words.