
About Viacrystal Team
At Viacrystal, we are proud to be a women-led business, passionate about advancing medical research and transforming healthcare. We are dedicated to conducting clinical trials that have the potential to impact patients worldwide.

Assel Sarsikeyeva, MSc, MBA
Chief Executive Officer
As Executive Officer at Viacrystal, Assel Sarsikeyeva brings years of experience and expertise to our team. She holds a Master of environmental sciences and has worked in the industry for over a decade. Assel is passionate about clinical research and is dedicated to ensuring that our clients receive the highest quality services possible.

Attila Szepesi, PhD
Senior Researcher and Strategic Consultant
Attila Szepesi is a Senior Researcher at Viacrystal with a PhD in science. He has extensive experience in the field of drug development . Attila is committed to staying up-to-date with the latest research methodologies and technologies to ensure that our clients receive the best possible outcomes.

Gabriella Sipkayné Miterli
Clinical Operations Manager
As Clinical Operations Manager Gabriella is responsible for overseeing and optimizing the performance of operational teams at both regional and local levels. This role involves a blend of human resources, line management, quality management, finance, and client relations responsibilities.

Barbara Zsebedics
Project Management Associate
Barbara Zsebedics has extensive experience in the field of clinical research and has worked on numerous studies throughout her career. She is dedicated to delivering high-quality services to our clients and is committed to staying up-to-date with the latest research methodologies and technologies.

Zorica Jokovic
Senior Clinical Research Assoaciate, Mentor
Zorica Jokovic is a Research Associate at Viacrystal with a Pharmacist degree . She is passionate about the field of clinical research and is committed to ensuring that our clients receive the best possible outcomes.

Agnes Timar
Clinical Trial Assistant
Agnes Timar is a Clinical Research Assistant at Viacrystal She is passionate about the field of clinical research and is committed to delivering high-quality results to our clients. Agnes is a valuable member of our team and is dedicated to ensuring that our clients receive the best possible outcomes.

Pavel Shkliaev
Clinical Operations Associate
With extensive experience in clinical trials and data analysis, Pavel specializes in enhancing processes and uncovering opportunities for improvement, optimizing workflows, mitigating risks, and driving profitability to ensure the success of every project. Core skills include data cleaning and preparation, analysis, statistical knowledge, and creating reports.

Ivan Ugrinovic
Clinical Trial Assistant
Ivan Ugrinovic, a dedicated Clinical Research Assistant at Viacrystal, specializes in managing clinical trials and helping our Clinical Research Associate. Passionate about delivering high-quality results, Ivan collaborates with investigators and research sites and is committed to ensuring that our clients receive the best possible outcomes while driving innovation in medical therapies.

Gyöngyi Gesztelyi MD, PhD
Senior CRA

Anna Szilagyi
Office Assistant