Dr. Petra Langerbeins, a medical graduate of the University of Cologne, specialized in chronic lymphocytic leukemia (CLL). She earned her doctorate in medicine in 2009, focusing on prognostic markers for CLL within the German CLL Study Group. Under Professor Michael Hallek's mentorship at the University Hospital of Cologne, she began her medical training in 2008. Dr. Langerbeins is actively involved in hematological and oncological patient care as a resident physician. She serves as a study physician and has progressed from coordinating physician to Principal Investigator of phase II/III trials within the German CLL Study Group. Recognized for her contributions, she was appointed Scientific Secretary of the German CLL Study Group in 2022.