Lassa fever

Lassa fever adjunct treatment with dexamethasone - the LADEX trial

This is an open label randomized controlled phase II clinical trial to assess the safety and tolerability of adjunct dexamethasone in addition to standard of care antiviral therapy compared to standard of care antiviral therapy alone for the treatment of moderate to severe Lassa fever cases. The trial is conducted in collaboration with the Irrua Specialist Teaching Hospital in Edo State, Nigeria.


Capacity building for rapid containment of Lassa fever outbreaks and development of medical countermeasures in Nigeria - Capacity building for the realisation of clinical trials

To rapidly contain Lassa fever outbreaks and develop medical countermeasures for Lassa fever disease in Nigeria, it is necessary to review existing therapeutic options (ribavirin) due to doubt about the therapeutic efficacy and to investigate new drug candidates (e.g. favipiravir) for clinical use in Lassa fever patients. Together with the Irrua Specialist Teaching Hospital (ISTH) in Nigeria, capacities are built and clinical studies are conducted jointly to establish local expertise:

  • PAIRR: A prospective observational study to evaluate pharmacokinetic properties of routine ribavirin treatment for Lassa fever patients at ISTH. 
  • SAFARI: A randomized, controlled phase II trial to investigate the pharmacokinetics, tolerability and safety of the drug candidate favipiravir by itself and in combination with ribavirin for the treatment of Lassa fever at the ISTH and theFederal Medical Center Owo (FMCO) in Nigeria. The SAFARI project is carried out in collaboration with the Institute National de la Santé et de la Recherche Médicale (Inserm), the Université Bordeaux,  the Alliance for International Medical Action (ALIMA), all France, and the Institute of Pharmacy at the University of Hamburg, Germany.


The capacity building activities of the Lassa-Nigeria project are funded by the Global Health Protection Programme (GHPP) of the German Federal Ministry of Health.

Lab Group Groger

Dr. Mirjam Groger: eine Forscherin mit schulterlangen, braunen Haaren mit Mittelscheitel und einem hellem Pullover.
Research Group Leader

Dr Mirjam Groger

phone: +49 40 285380 480