Leif Breum

Leif Breum serves as a Clinical Associate Professor in the Department of Clinical Medicine at the University of Copenhagen's Faculty of Health and Medical Sciences. His clinical specialization focuses on Internal Medicine: Endocrinology, with primary appointments at Lykkebækvej 1, Køge and Blegdamsvej 3, Copenhagen N. His research is deeply embedded in clinical diabetes studies, particularly through the Copenhagen Insulin and Metformin Therapy (CIMT) trial consortium.

Dr. Breum's research interests center on diabetes complications, with emphases on bone health deterioration in type 2 diabetes, cardiovascular risk assessment, and metformin-insulin interaction effects. His work investigates how metabolic therapies impact bone mineral density, trabecular structure, and oxidative stress markers, while also examining exercise interventions in hematological malignancies like multiple myeloma. His methodology heavily relies on randomized controlled trials and longitudinal cohort analyses to establish causal relationships between therapeutic regimens and clinical outcomes.

Analysis of his 23 publications reveals a consistent focus on diabetes therapeutics from 2016-2024, with major contributions to the CIMT trial series examining insulin analogues, metformin combinations, and cardiovascular endpoints. His recent 2024 study expanded into hematology-oncology collaborations, investigating exercise protocols for myeloma patients. The research demonstrates strong interdisciplinary connections between endocrinology, hematology, and vascular biology, with significant attention to bone-vascular axis interactions in metabolic disease.

His collaborative network includes prominent Danish diabetes researchers like Almdal, Madsbad, Mathiesen, and Vestergaard, with institutional ties to Zealand University Hospital (regionsjaelland.dk domain). While no formal awards are documented in the provided materials, his work shows substantial real-world impact with policy document references and consistent Scopus-indexed citations.

Dr. Breum maintains active clinical trial leadership, particularly in the CIMT consortium investigating insulin-metformin combinations. His work bridges clinical endocrinology with hematology (myeloma study) and bone metabolism research, operating within University of Copenhagen's clinical research infrastructure. Current projects continue exploring diabetes therapeutics' effects on skeletal and vascular systems through randomized trial designs.