Our People
Oriana Zerbini – Chief Executive Officer
Dr. Oriana Zerbini MD specialised in Cardiology, Pharmacology and in Tropical Medicine and Hygiene from Padua University, Modena University and the University of London. She also received a Master degree in Communication Skills from Bocconi University in Milan. Oriana worked several years in a major international Pharmaceutical company where she contributed to the worldwide development of one of its blockbuster products, leading clinical research programmes at national and international level.
Oriana is the CEO and Founder of CROMSOURCE. On 15th July 1997 she founded the Company in Verona, Italy, and shortly afterwards expanded into Central and Eastern Europe, becoming one of the first CROs to be active in that region. Stability, integrity, high quality services and a high level of customer satisfaction contributed to the global development of the company she founded and grew to include offices across Europe and the United States.
Oriana leads the company working side by side with the business development and the operations teams offering her strong experience in the development of products for the life sciences industry. She is always available for her employees and clients alike. It is common practice for our clients to be able to reach out Oriana when they need to. She is truly passionate about the work that the Company does and enjoys taking a hands-on approach to helping clients with their projects.
Carlo Zerbini – Chief Financial Officer
Carlo Zerbini has more than 30 years’ experience in the finance field. Before joining CROMSOURCE, he gained experience in the Accounting and HR divisions in the previous working experiences. In 2002 he started to work for CROMSOURCE as Finance & Human Resource Manager Director; from February 2011 has been appointed as Chief Financial Officer (CFO) with the responsibility for the financial management of CROMSOURCE.
Kerry Dyson - Chief Operating Officer
Kerry Dyson serves as Chief Operating Officer, leading the integrated teams within CROMSOURCE committed to delivering exceptional clinical development services and flexible support to both pharmaceutical and medical device clients.
Dr Dyson has over 20 years of experience in clinical research both within the pharmaceutical and CRO sectors. During this time he has worked at all levels and across operational and commercial functions within the industry. Dr Dyson has held roles including Global Head of the Clinical Research Division, Director of Marketing and Communications and Head of UK Operations at CROMSOURCE. Within each role Dr Dyson enjoyed key responsibilities for providing strategic input to the successful growth and development of the company. Prior to joining CROMSOURCE, Dr Dyson was Head of EU Operations for Catalyst Pharma Group, and during this time his focus changed from purely operational activities to include strategic and corporate development activities. Before this time Dr Dyson worked in clinical operations at Novartis and Innovex/Quintiles.
Dr Dyson holds a PhD in Applied Physiology from Leeds Metropolitan University, an MSc in Kinesiology from McMaster University and a BSc (Hons) in Sport Science from Manchester Metropolitan University. He has authored numerous academic publications and written various articles on clinical research topics.
Troy W. McCall - Chief Commercial Officer
As Chief Commercial Officer, Dr. McCall is responsible for the global commercial success of the organization. He currently oversees the Global Sales, Marketing, Corporate Communications, and Proposals functions to drive business growth and market share.
Dr. McCall brings more than twenty-five years of experience in the pharmaceutical and CRO industries, having worked for more than a decade each in increasingly senior positions in specialty pharma and life science services companies. He has a proven track record of success in leading and growing start-up, small, and medium-sized organizations. He has been a managing partner and/or CEO at four companies.
Throughout his career, Dr. McCall has consistently been successful in building value through a disciplined business approach which includes, but is not limited to, cost rationalization and expense management resulting in industry-leading margins, hands-on and effective engagement with clients, FDA, and other stakeholders, active participation with the sales and marketing organizations to significantly improve top-line results, and top-grading talent at all levels. He has extensive experience with growing and transforming companies and developing successful, sustainable organizations.
In addition to his roles in pharmaceutical and life science services companies, Dr. McCall has served as an advisor to private equity firms to support their investment activities, both for potential new investments as well as providing guidance to their existing portfolio companies. He also served as a Senior Advisor to The Reagan-Udall Foundation for the Food and Drug Administration where he led multiple initiatives supporting the FDA’s mission to promote and protect public health. One such initiative was the Innovation in Medical Evidence Development and Surveillance (IMEDS) program, a public-private partnership comprised of a variety of stakeholders (FDA, regulated industry, academia, advocates, and others) with the goal of optimizing the way in which large observational healthcare datasets are managed to improve the safety of marketed medical products.
Simona Colazzo - Chief Human Resources Officer
In 2016 Simona was appointed Chief Human Resources Officer, responsible for developing the human resources strategy focused on talent management, including training & development and compensation. She also oversees the change management processes and the organizational and performance management, in support of the overall business objectives and the strategic direction of the Company.
Prior to this, in 2011 she became an Executive Director of CROMSOURCE, responsible for the successful management of the organization according to the company vision and corporate strategy.
Simona was awarded a degree in Biological Science at the University of Parma. She joined CROMSOURCE in 2002, starting her career in pharmacovigilance and then leading numerous national and international clinical trials in various therapeutic areas as a project manager. She then focused on quality assurance management, leading the Compliance team for more than 10 years.
Clara Veldman - Global Head of TalentSource Life Sciences
As Global Head of TalentSource Life Sciences Division, Clara heads up an international team, working directly with clients on their resourcing needs to provide dedicated staff who are experienced, deliver high quality, add value in the assigned roles and to the client’s overall objectives.
Clara joined CROMSOURCE in 2006 bringing with her a wealth of international executive recruitment experience obtained while working in The Netherlands, UK and Spain. During her career at CROMSOURCE she has held a number of senior leadership roles and gained experience with managing Teams and Key Accounts (from small biotech to large pharma) throughout Europe and the US.
Clara holds an MSc in Psychology and is focused on client satisfaction and leadership excellence.
Cinzia Bernini - Global Head of Clinical Research Division
As Global Head of the Clinical Research Division, Cinzia is responsible for the oversight of all aspects of the delivery of clinical research services, ensuring the highest standards of quality, timeliness and accountability are delivered to CROMSOURCE clients.
Cinzia joined CROMSOURCE in 2000, starting her career as Clinical Research Coordinator and Drug Surveillance Officer. She developed her expertise within the Clinical Research Department leading numerous national and international clinical trials in a variety of therapeutic areas as a project manager, project leader and project director. After thirteen years in roles of increasing seniority within operational clinical development, she became Director of Project Management Department and latterly Clinical Research Department Director.
Cinzia holds a MMLSc in Biological Laboratory Techniques from the University of Verona.
David Dills - Director Regulatory Services
David joined CROMSOURCE in 2018 as Regulatory Services Department Director. He has more than 29 years’ of leadership experience in the biopharmaceutical and medical device industry within the regulatory affairs and compliance space. He has held positions of increasing responsibility with sponsors and service providers of various sizes, including large, global OEM’s/sponsors, consultancies and a global CRO, as well as virtual, small, mid and large-sized enterprises.
He has worked with clients in ASEAN/APAC, EMEA and The Americas, and certainly with FDA and the global Health Authorities/CA’s involving a wide spectrum of product portfolios covering multiple therapeutic areas and medical specialties. He interprets the regulatory precedents and new legislation, understands the competitive landscape and conducts persuasive communications and meetings with the regulatory authorities while executing an effective regulatory strategy and path to regulatory approval. He is providing the global regulatory capabilities and regulatory intelligence support for clients, strategic and operational support for clinical operations, and collaborating with our internal stakeholders and business partners.
In addition, to being a professional member with industry associations, advisory boards, and a prolific speaker at industry events, he navigates the regulatory landscape throughout the product life cycle from premarketing, postmarketing to commercialization with regulatory oversight and regulatory crisis management. In addition, David is responsible for the development and deployment of new services in the Regulatory and Strategic Regulatory Consulting space and looks forward to providing strategic and tactical solutions that facilitate the achievement of regulatory and compliance milestones for our clients with proactive strategies to mitigate compliance exposure.
David Jackson - Director Biometrics Division
David Jackson earned his Statistics BSc. Hons. from The University of Glasgow and his MSc. in Statistics from the University of Sheffield. As a statistician he continues to take a special interest in the statistical challenges in complex trials where there is high dependence of multiple within patient observations (such as ophthalmic trials using data from both eyes). After a brief career in the service industry he joined the pharmaceutical industry in 2002, working as a statistician across all Phases for a major CRO. Spending a significant time with a biometrics specialist CRO and having always worked as a service provider has given David the insight into how full service and FSP models can support the pharmaceutical and medical device industries and of the importance of meeting our customer’s needs.
David joined CROMSOURCE in 2010 and as Head of the Biostatistics and Programing group oversaw the growth of the department and the streamlining of procedures to better meet the needs of our pharmaceutical and medical device sponsors. As Head of the Biometrics department David continues to support continual improvements to exceed our sponsor expectations. David is experienced across all areas of product development from statistical consultancy to FDA and EMA submission. David has represented our Sponsors at FDA (CDER, CBER and CDRH) and EMA meetings, interactions, audits and inspections and is comfortable advising and presenting on all biometrics aspects across a range of therapeutic areas. David’s skills are evident in communicating often complex biometrics procedures in non-complex language removing the fear from biometrics and opening the ‘black box’ for our sponsors.
Antoinette Torres Frankum - Executive Director Clinical Research Division
Antoinette has over 25 years’ experience leading teams and managing complex clinical trials in the Biotech, Pharma, and Medical Device Industry. At CROMSOURCE, Antoinette is part of the Executive team and has been instrumental in developing the US operations, as well as directing global clinical research activities. Her passion for building high performing teams, improving the operational value chain, and being a part of the science to improve lives, drives her commitment to the industry. Therapeutic expertise includes but is not limited to: Rare Disease, Respiratory, CNS, Endocrinology, and Ophthalmology. Antoinette received her Bachelors Degree and Executive Management Certification from University of California, Los Angeles. She is a speaker and contributor at industry related organizations and conferences, and is a professional member of the Project Management Institute (PMI), Women in Bio (WIB), Healthcare Business Woman’s Association, Drug Information Association (DIA) and Association of Clinical Research Professionals (ACRP).
Silvio Severini - Managing Director of Techorizon
Silvio joined CROMSOURCE in 2001 first as a clinical monitor then as a project manager for diabetic’s clinical trials, developing a strong expertise and experience in the Clinical Operations Processes. In 2004 he became responsible for the Procurement Unit. In 2005 he became head of the IT unit of the group where, together with his team, he started to develop specific tools for the management and conduct of clinical trials. In 2009, he co-founded Techorizon, an IT company of the CROMSOURCE Group that focuses on the development of tools for the pharmaceutical industry, proposing them to a wider market. Today, with the Techorizon team, he continues to develop and offer its customers the Techorizon Clinical platform that provides valuable tools in conducting and collecting data for clinical trials.
Margherita Mosconi - Chief Marketing and Corporate Communication Officer
As Chief Marketing and Corporate Communication Officer, Margherita leads the development and execution of effective marketing and communication activities which inform the market of CROMSOURCE’s unique service offering. Through her expert knowledge of the market landscape and her strong operational background she also contributes to the development of corporate strategy.
Since joining CROMSOURCE in 2005 Margherita has held a number of key roles in both operational and commercial leadership. During the last 10 years Margherita’s focus has been on commercial responsibilities, with leadership roles in Business Development, Marketing and Communication, and Strategic Client Development.
Prior to joining CROMSOURCE, Margherita worked for a global pharmaceutical company within Clinical Research for over ten years, progressing to senior roles in national and international project management. Margherita holds a BSc in Biological Science from the University of Pavia.

CROMSOURCE have built a strong and deserved reputation based on professionalism, responsibility and proactiveness. Their teams are completely dedicated, highly professional and responsible, with good analytical skills. I would recommend CROMSOURCE unreservedly to anyone seeking support with aspect of their clinical development projects.