Leipzig, Germany

Velocity Clinical Research, Germany

Founded in 2016 as Sibamed Studienzentrum GmbH & Co. KG and acquired by Velocity Clinical Research in 2022, the experienced team at Velocity’s dedicated research site in Leipzig conducts Phase 2-4 clinical trials across a broad variety of indications. The site partners with specialists in gastroenterology, orthopedics, internal medicine, and pediatrics. By developing strong working relationships with local communities and having close ties with networks of cooperating practices, Velocity’s Leipzig staff provides fast, accurate patient enrollment support, even for diverse populations.

Our Leipzig team is committed to being a resource for study volunteers, to providing the highest quality of patient care with compassion and kindness and to advancing medicine through research. With decades of research experience shared among our investigators in Leipzig, Velocity will deliver the right patients, investigators, and research staff for your next research program.

Velocity Clinical Research, Germany
Rosa-Luxemburg-Straße 20, 04103, Leipzig, Germany

Phone: +49 34126825556


Our Vision

Improve lives by making clinical research accessible to all.

Our Mission

Improve the clinical research process to accelerate the delivery of new therapies and provide exceptional care to our community.

Our experienced research team in Leipzig

The Velocity Leipzig team of physician investigators and clinical research professionals are experienced clinical researchers. All physicians are board certified in their specialty area(s) and all research staff is trained in clinical research regulations, including GCP and HIPAA. Training records and certifications are maintained. Our clinical team is dedicated to conducting quality research in a professional and caring environment and strives on collecting quality data.

  • Dr. Sandra Stark

    Vice President, Operations – Europe ; Managing Director – Velocity Clinical Research, Leipzig GmbH
    Sandra Stark, PhD joined Velocity Clinical Research after 18 years at Parexel where she held various positions in Project Management, Business Development, and Portfolio Management. After leading the Therapeutic Area of Immunology and Rare Diseases in Early Phase for seven years, she took on the role of Unit Head of Parexel’s Phase 1 unit in Berlin, Germany – a 120-bed Clinical Pharmacology clinic. Moving from the Sponsor/CRO side of clinical research to Velocity Clinical Research not only closes the loop full circle, it expands her experience into late-stage development. Dr. Stark brings over 20 years of experience in both the CRO and biopharmaceutical industry, with extensive knowledge in Early Drug Development, Translational Medicine, Pre-clinical, and thorough strategic development, to her roles with Velocity, focusing on fast and efficient POC to support go/no-go decisions for late-stage development. Dr. Stark holds a Diploma in Biology from Kassel University and a PhD in Immunology and Immunogenetics from University of Göttingen.

  • A headshot of Maria Lehretz, MD

    Dr. Maria Lehretz

    Medical Director, Principal Investigator
    Maria Lehretz, MD currently serves as the Medical Director of Velocity Clinical Research in Leipzig, where she manages the site’s principal investigators and sub-investigators, in addition to being a principal investigator herself. In this role, she also plays an active role in the commercial development of the site and collaborates with the Business Development and Business Operations teams. She also serves as a liaison between pharmaceutical and CRO medical directors, providing clinical content and consulting expertise on study protocol design to sponsors and CROs. Prior to this, Dr. Lehretz held the position of Head of Clinical Research at eCovery GmbH, where she was responsible for designing and executing clinical studies, managing regulatory processes and project management, and overseeing clinical trial managers. She has also served as a Senior Clinical Research Physician at Parexel International and as a Clinical Research Physician at SIBAmed GmbH und Co. KG, where she was involved in Phases 2 and 3 clinical trials, MPG and register studies, managing site principal investigators and sub-investigators, and working with pharmaceutical and CRO companies. Dr. Lehretz received her medical degree from Martin-Luther-University Halle.

  • Kai Mehltretter, MD

    Principal Investigator
    Kai Mehltretter, MD is a highly experienced and qualified investigator with over 20 years of experience in the field of clinical research. He currently works as a freelance Principal Investigator at Velocity Clinical Research Leipzig GmbH, and as a freelance Pharmacovigilance Consultant. Before joining the SIBAmed/Velocity team, he was a consulting physician for major pharmaceutical companies and Head of a CRO’s Pharmacovigilance Department at IST GmbH Mannheim. Dr. Mehltretter has also held roles in various organizations, including Team-Lead Investigator for Phase 1-2 clinical studies at IKP GmbH Grünstadt and CRS Clinical Research Services Mannheim GmbH, as a Freelance Clinical Investigator and Consultant at Abbott GmbH & Co KG Ludwigshafen, and as an Assistant Physician at the Ophthalmic Clinic at Ruprecht-Karls-University Heidelberg. Dr. Mehltretter is highly educated and holds a medical degree from Ruprecht-Karls-University Heidelberg. He has authored publications in the fields of Ophthalmology and Pharmacokinetics/Pharmacodynamics.

  • Dr. Thomas Müller

    Principal Investigator
    Thomas Müller, MD is a specialist in Pediatrics working as a Principal Investigator and Specialist at Velocity Clinical Research Leipzig GmbH and previously at SIBAmed Study Center in Leipzig, Germany. In parallel, he works as a pediatrician in the Leipzig Family Medicine practice FMZ Radowsky. He has also worked as a Medical Specialist for pediatrics with psychiatric/neurological disorders at the Helios Clinic Social Pediatrics center in Leipzig. Dr. Müller has over a decade of experience in the field, having served as a Resident in pediatric medicine at Helios Clinic and as a Resident in internal and general medicine at DIAKOMED – Diakonie Hospital.

Leipzig facility features

The Velocity Clinical Research, Germany facility is designed for the ease and comfort of study participants and to allow optimal efficiencies in performing clinical trials. Features at this site include:

  • Private examination/consultation rooms
  • Comfortable patient reception areas
  • Facilities for extended-stay pharmacokinetic studies
  • Parking
  • Nursing station
  • Secure monitoring rooms or workstations with phone & high-speed internet access
  • Multiple individual & secure workstations for research staff
  • Regulatory document processing area
  • Electronic data capture (EDC) capabilities
  • Secure record storage
  • CLIA certified research laboratory or clinical laboratory with CLIA waiver
  • Ambient and refrigerated centrifuge
  • Secured & temperature controlled investigational product storage with pharmaceutical refrigerator & freezer
  • Freezers equipped for laboratory specimens at -20 & -70 degrees Celsius
  • Backup generator/power source in the event of site power loss
  • Standard medical equipment, including ECG and Holter machines, digital and analog scales
clinical research site team
Portrait Of Smiling Female Doctor Wearing White Coat With Stethoscope Sitting Behind Desk In Office

Quality. Continuity. Velocity.