European Early-PhaseClinical TrialsTrusted Partner for 20 Years
We are an European Clinical Research Organization specializing in early-phase studies in healthy volunteers, including first-in-human, SAD/MAD, PK/PD, and bioequivalence studies.
Celebrating 20 years of successful work in the field of clinical research.
Comprehensive Clinical Services
From first-in-human studies to bioequivalence trials, we deliver precision clinical research with European regulatory excellence.
Phase I-IV Clinical Studies
First-in-human safety and tolerability assessments with comprehensive pharmacokinetic profiling in healthy volunteers.
Bioequivalence Studies
Comparative bioavailability studies demonstrating therapeutic equivalence for generic drug development and registration.
Bioavailability Studies
Absolute and relative bioavailability assessments to characterize drug absorption and systemic exposure.
PK/PD Studies
Integrated pharmacokinetic and pharmacodynamic evaluations to establish dose-response relationships.
Clinical Monitoring
Ensuring study compliance, data integrity, and patient safety through expert on-site and remote monitoring.
Data Management & Statistics
Fully validated electronic data capture systems with in-house servers ensuring high security and quality data monitoring.
Regulatory Services &Study Startup
We provide comprehensive support for protocol development, ethics and authority submissions, and regulatory interactions in the EU. We ensure fast and efficient study start-up with rapid recruitment strategy and our fast-pace CTIS submission options.
Protocol Development
Expert support for comprehensive protocol development aligned with EU regulations.
Ethics & Authority Submissions
Complete management of ethics committee and regulatory authority submissions.
Fast-Track CTIS Submissions
Leverage our fast-pace CTIS submission options for accelerated approval timelines.
Rapid Recruitment Strategy
Efficient study start-up with proven recruitment strategies and established volunteer database.
Global Sponsors
Trusted by leading pharmaceutical organizations worldwide
Risk-Based Approach toClinical Studies
Quality Assurance oversight of operations is risk-based and provides pro-active risk mitigation, as well as continuous process optimization as we collect data from our ongoing studies. Each deviation is carefully examined and documented with progressive technology made with purpose. Our processes have been tested, approved and inspectioned by Health Ministry of RS and audited with various sponsors.
Pro-active Risk Mitigation
Continuous monitoring and early intervention strategies
Process Optimization
Data-driven continuous improvement methodology
Regulatory Approved
Tested and inspected by Health Ministry of RS
Slovenia's LeadingPhase I Clinical Partner
CRS is a Slovenian CRO and the only regional Phase I clinic in Slovenia. Our National Agency allows us to fast-track CTIS approval for studies, giving sponsors a competitive advantage in EU regulatory pathways.
Our well-connected network of doctors, scientists, biostatisticians, and data management experts provides the highest level of complex scientific and logistical support. We work closely with University Medical Centre and University of Ljubljana to answer your most complex questions.
We aim to be a trusted one-stop destination delivering end-to-end services throughout the product lifecycle—fast and efficient, without compromising on quality and patient safety.
28 Years of Clinical Excellence
Company Founded
CRS Clinical Research Services established its first clinical operations, beginning our journey in early-phase research.
Service Expansion
Launched Phase II-IV Monitoring & Clinical Services, broadening our capabilities in clinical research.
Facility Growth
Expanded our premises to accommodate growing demand and enhance participant comfort.
Phase I Unit Launch
Established our Phase I Unit - the only in-house clinical unit in Slovenia.
Industry Leadership
Became the leading Phase I clinic with successful completion of 3-4 complex PK/PD studies with 70+ participants each.
Team Expansion
Opened another facility for staff, just 3 minutes from the clinic, supporting our growing team.
Global Presence
Attended CPHI, strengthening our international partnerships. Now celebrating 50+ successful collaborations and 20 years of excellence.
Future Vision
Planning to attend Bio-Europe, continuing our commitment to innovation and global collaboration in clinical research.
CRS Clinical Research Services established its first clinical operations, beginning our journey in early-phase research.
Launched Phase II-IV Monitoring & Clinical Services, broadening our capabilities in clinical research.
Expanded our premises to accommodate growing demand and enhance participant comfort.
Established our Phase I Unit - the only in-house clinical unit in Slovenia.
Became the leading Phase I clinic with successful completion of 3-4 complex PK/PD studies with 70+ participants each.
Opened another facility for staff, just 3 minutes from the clinic, supporting our growing team.
Attended CPHI, strengthening our international partnerships. Now celebrating 50+ successful collaborations and 20 years of excellence.
Planning to attend Bio-Europe, continuing our commitment to innovation and global collaboration in clinical research.
Expert Leadership & Specialists
Our multidisciplinary team brings together decades of combined experience in clinical research, regulatory affairs, and medical expertise.
Core Team
Tanja Turk, M.Pharm
Clinical Research Scientist, CEO & Founder of CRS d.o.o.
Aleksander Turk
Data Manager, Lead Engineering Scientist. Specialist for OpenClinica
Evelina Turk, M. Pharm
Administrative & Submissions Specialist
Filip Turk
Study Coordinator and Recruitment Specialist
Medical Experts
Dr. Matjaž Fležar
Respiratory Diseases - Golnik Medical Treatment Center
Dr. Tajda Košir Božič
Renowned Gastroenterologist
Dr. Andrej Kravos
Main Practitioner
Slovenia is an attractive destination for our clients, as it offers rapid, cost-effective and high-quality clinical development solutions.
Extended Network
Our extended team comprises Medical Monitors, Biostatisticians, and experts from the Faculty of Pharmacy, along with many other specialized professionals who support our clinical research operations.
Strategic Advantages
Located in the heart of Europe, we combine operational excellence with comprehensive clinical capabilities.
Strategic European Location
Core Capabilities
World-Class Infrastructure
Our state-of-the-art facilities and experienced team ensure the highest standards of clinical research excellence.
Awards, Certifications & Quality Standards
Leading the way with internationally recognized excellence
GCP Compliant
Full ICH-GCP compliance certification
GDP Certified
Certified Good Distribution Practices
Ministry of Health Licensed
Official RS regulatory approval
3x Best CRO Nominee
Industry excellence recognition
Let's Discuss YourClinical Needs
Ready to advance your clinical development program? Our team of experts is here to help you design and execute successful Phase I studies.