Marek Wasiluk

DMD, MBA, Chief Execution Officer


His professional career in clinical research started in 1999. Since then he has been holding different position, from being CRA to CEO position, and working on multiple international research projects.  Dr. Marek Wasiluk has medical background, graduated MBA and has ISO 9001 expertise. Apart from CRO management he has an extensive expertise and personal interest in consultancy. He is a big enthusiast of improvement and simplification of clinical research processes. 


For last 10 years he has been involved in several consultancy projects,  mainly pertaining to advisory on clinical research effectiveness, business performance, quality of research project,  operational expansion to new territories. Since 2006 Dr. Marek Wasiluk has become an expert in the Emerging Markets (Africa and Eastern Europe, Middle East, Asia), helping clients to successfully run clinical research projects and business activities there. Since 2007 he has been giving lectures at post-graduate studies on clinical research conducted by Warsaw Medical University.

Katarzyna Dulna

DMD, Chief Medical Officer



Clinical Trial Specialist with more than 10 years of experience in clinical trials management, monitoring and quality oversight. Special interest’s area- clinical trials quality and line management. Experienced in multi-country clinical trials of phases I- IV in various therapeutic areas, with special focus on oncology. Particularly interested in diagnostics and treatment of breast cancer. Expert in medical device studies. Co-author and consultant of study protocols.


Her professional career started in Top 10 Pharmaceutical companies as a CRA, where she could work under the supervision of the best specialists. Currently responsible for line management, supervision and development of Clinmark’s staff, training, QMS and SOPs development support, project management, supervision of submission packages to RA and ECs, business development support, contacts with the business partners and contract negotiations. Involved in independent quality oversight visits in EU and CEE. Privately interested in photography, traditional afro dance and learning life through travels.

Michał Ławniczak

DMD,  Head of Clinical Consulting


Clinical Trial Specialist with 9 years of experience in clinical trials monitoring, management and quality oversight in phases I-IV, various therapeutic areas (respiratory diseases, pediatric and adult rheumatology, pediatric and adult oncology, orthopedics, surgery, hepatology, hematology) as well as medical device studies. Previously worked as a CRA and Study Leader of global clinical projects for top 10 Pharmaceutical Companies.


Currently responsible for, management of trial execution, negotiations of contracts with Sponsors and vendors, line management of CRAs, quality oversight, training of Clinmark staff and performing supervisory visits. Supervising of all kinds of contacts with ECs and RAs. Focused on quality, performing  investigational site audits mostly in EU and CEE countries, Sponsor office TMF assessments, – certified Quality Management Specialist and internal Auditor IQMS ISO 9001.

Jacek Banach

Head of Business Development


Business Development Specialist with over 5 years of experience. During his twenty-year experience he has had an opportunity to work for large corporations as well as small organizations conducting various projects, developing IT products and implementing them for his partners. For the last 5 years he has been into BD creating strategies for companies/organizations development planning and running marketing activities.


He started his career path in Clinamrk as a Training Manager responsible for dveloping team and working on strategic planning. In that position he was responsible for preparing and conducting internal development programmes as well as preparing new products tailored to clients key needs and expectations.


He is currently the Head of Business Development and is in charge of planning and preparing services that will assist with the execution of clinical trials. He is building relationships and helping Clinmark clients move their products through the development life cycle getting them to the market as quickly as possible. Dedicated to strengthening and developing cooperation with partners and seeking new opportunities to expand the business. Focused on quality management using very well-developed problem-solving and communications skills.

Grzegorz Pogorzelski

MD, Chief Strategy Officer


Grzegorz Pogorzelski joined Clinmark company as Chief Strategy Officer in 2016.


Bringing his in-depth clinical research knowledge, enthusiasm and vast experience to an expanding and rapidly growing organization, he leads strategical projects and executive development programs. 


With over 18 years of experience in the pharmaceutical industry, prior to joining Clinmark he has held various executive leadership and operational positions within international CROs (Vice President and Head of Clinical Operations, CEO for Central Europe operations) ensuring proper organizational frames and resources for effective project execution. Gifted to build strong business relationships, talented to motivate and develop professional teams, goal oriented, with passion for work.


His  clinical research career started in Merck & Co., where he was principally responsible for leading and monitoring studies.


Grzegorz Pogorzelski earned his medical degree from the Medical University of Warsaw, and practiced in the field of metabolic and cardiovascular diseases, including intensive care.