About Just In Time GCP
Leaders in Clinical Compliance
Who We Are
Our Story
At Just in Time GCP, we believe that compliance shouldn’t slow progress—it should enable it. Founded in 2005 by Donna Dorozinsky, a registered nurse and second-generation entrepreneur, our company began with a simple goal: help clinical teams achieve regulatory compliance without sacrificing operational momentum or quality. Drawing on her deep clinical experience and a desire for more balance and purpose in her work, Donna built Just in Time GCP into a trusted partner for sponsors navigating the ever-changing clinical landscape.
Now recognized as leaders in clinical compliance, we’ve grown into a national team of over 100 full-time experts, supporting trials across all phases and therapeutic areas. While we specialize in helping small and medium-sized companies, our clients range from startups to global sponsors—all seeking the same thing: a smarter, more confident path forward.
From TMF oversight and inspection readiness to system optimization and continual compliance support, we bring clarity, structure, and innovation to every engagement. Our story is grounded in partnership, driven by purpose, and shaped by two decades of delivering peace of mind when it matters most.
Our Leadership Team
Donna Dorozinsky
Founder & CEO, Just in Time GCP
Donna Dorozinsky began her career as a clinical nurse and turned that hands-on experience into a decades-long mission to improve clinical research. Today, as Founder and CEO of Just in Time GCP, she leads one of the industry’s most trusted clinical compliance companies—helping sponsors simplify GCP, manage TMFs with confidence, and stay inspection-ready across complex global trials.
With over 30 years in drug development, Donna has partnered with biotechs, pharma, CROs, and academic sites—building relationships that span not just projects, but careers. Her clients often bring her along as they move from company to company, a testament to the trust and value she delivers.
She’s known for her deep operational expertise across TMF, eClinical systems (eTMF, CTMS, QMS), and clinical quality frameworks—always combining innovation with practical, people-first solutions.
- 🧠 Lead Editor, Good Clinical Practice: A Q&A Reference Guide (2024/2025)
- 🌐 TMF Reference Model Steering Committee Member
- 🏆 Ernst & Young Entrepreneur of the Year
- 📈 Just in Time GCP, named to the INC5000 list four years running
Donna holds a BSN from Gwynedd Mercy University—where she now serves on the Board of Trustees—and an MSN from Widener University. She’s also a founding member of SONSIEL, where nurse leaders drive innovation across healthcare. Above all, Donna is driven by a passion for lasting impact—on teams, on trials, and on the future of clinical research.
Brian Guza
COO, Just in Time GCP
As Chief Operating Officer at Just in Time GCP, Brian is responsible for leading the execution of the strategic vision and growing the organization’s presence in the industry.
A seasoned healthcare executive with nearly three decades of experience in healthcare operations, strategic planning, technology, and executive leadership, Brian brings his unique pharma service partner experience and insights to help empower Just in Time GCP to better serve its clients and shape the future of this growing company.
George Lyon
Chief Commercial Officer, Just in Time GCP
George Lyon serves as the Chief Commercial Officer at Just in Time GCP, bringing over 30 years of experience in strategic sales, team building, and commercial transformation. A highly driven leader known for his visionary thinking, George has a proven track record of building high-performing teams and driving multi-million dollar revenue growth across global markets. His expertise in formulating and executing corporate strategies with operational excellence positions Just in Time GCP for continued success in the clinical research industry.
Aaron Grant
Head of Innovation, Just in Time GCP
As Head of Innovation at Just in Time GCP, Aaron spearheads efforts to integrate advanced technologies and streamline processes in clinical operations. With over 20 years in regulatory and clinical research technology, he is dedicated to enhancing operational quality through strategic automation and solutions. An active contributor to the CDISC TMF Reference Model Committee, Aaron has driven industry-wide improvements in standardization and quality, bringing a forward-thinking approach to persistent challenges in clinical research. At Just in Time GCP, he is committed to delivering impactful solutions that ensure clients are equipped with the most effective tools, technologies, and techniques for maintaining GCP compliance.
Alycia Hannum
Director, Human Resources, Just in Time GCP
As Human Resources Director at Just in Time GCP, Alycia is responsible for shaping and implementing people-focused strategies that support the company’s mission and empower employees to thrive. Passionate about fostering a culture of collaboration and continuous growth, Alycia leads initiatives in organizational development, employee engagement, and talent acquisition. Since joining Just in Time GCP in 2023, her efforts have been instrumental in building a strong, inclusive workplace where employees feel valued and inspired to reach their full potential.
Tina Henderson
Head of Life Sciences Consulting, Just in Time GCP
Tina brings over 25 years of experience in the life sciences industry, leading transformative initiatives that align business objectives with operational execution. With a proven track record in developing scalable infrastructure and driving clinical compliance, Tina fosters innovation and optimizes processes for greater efficiency.
Known for her leadership in building elite teams, Tina is committed to helping clients achieve excellence in clinical trial oversight and operational optimization. Her strategic approach enhances organizational performance, accelerates growth, and drives long-term success.
As Head of Life Sciences Consulting at Just in Time GCP, Tina is focused on shaping the future success and growth of JiT Consulting. She is dedicated to positioning JiT as a best-in-class consulting services provider, driving innovation, optimizing clinical operations, and delivering measurable value to clients.
Jennifer Stamper
Director, TMF Services, Just in Time GCP
As a Director of TMF Services at Just in Time GCP, Jenn’s focus is on the Trial Master File (TMF) through TMF management, oversight, and inspection readiness activities. Jenn has a passion for leading people and fostering their career growth within the industry. She started her career in clinical research at a large CRO where her career grew to lead a department of 150+ employees, supporting over 750 active projects with paper and electronic TMFs through migration, set-up, maintenance, quality and delivery of the Trial Master File. Over the past five years, Jenn has supported clients in N.A., EPA, and APAC through EMA, MHRA and FDA inspections. She is actively involved with the TMF Reference Model Working Groups, attends industry conferences and has presented on panels at eXL events. Serving as a member of the leadership team with Just in Time GCP, Jenn’s focus is on the continued growth and development of our company, inspection readiness strategy and supports new business through marketing activities and fostering partnerships.
Carol Radwanski
Director, TMF Services, Just in Time GCP
In her current role as a Director of TMF Services, Carol has made significant contributions to the services team. Carol is a Registered Nurse and began her research career at a Phase 1 Clinical Research Unit. Joining JiT in 2017, some of Carol’s key roles involves providing client support in all aspects of trial master file (TMF) management, including periodic reviews, quality checks, migrations, and audit support. To support professional development, Carol encourages her team to reach their fullest potential and actively supports their growth and knowledge expansion. She regularly attends industry conferences to stay current and help JiT maintain a strong presence in the research community. Carol’s dedication to excellence and collaboration is essential in driving forward clinical research initiatives.
