New therapies to promote bone healing or treat osteoporosis, arthritis and other skeletal diseases require a comprehensive preclinical assessment of bone and cartilage. Bone endpoints can be incorporated into toxicology programs to fully evaluate test articles that have an intended effect on bone or to determine effects of test articles that have secondary, indirect or adverse effects. Charles River offers services in the area of bone/skeletal research that combine established discovery and preclinical program development expertise with a host of novel bone research technologies to provide highly specialized evaluations of bone disease and bone quality. Our skeletal research scientists can assess the effect of a drug in vivo or ex vivo on bone at toxicological and pharmacological doses and facilitate the interpretation of study findings to help you better design clinical trials. Basic Research Customized Animal Models Drug Discovery Contract Studies in Models of Rheumatoid Arthritis (RA) Schenk Model in Weanling Rat TPTx (Thyroparathyroidectomy) Rat Uremic Rat (5/6 Nephrectomy) Gonadectomy-induced Bone Loss Model for Osteoporosis Drug Testing Orchidectomized Rat Models for Sarcopenia Research Rabbit and Rat Osteoarthritis Models Discovery Pathology Services Biomarker & Analytical Services Safety Assessment Adult Animal Efficacy/Toxicology Studies Developmental and Reproductive Toxicology Musculoskeletal Pathology Clinical Support Clinical Bioanalysis Clinical Pharmacokinetics Clinical Immunology and Biomarker Services Pathology for Clinical Trials Manufacturing GMP-Compliant Biopharmaceutical Manufacturing Endotoxin Detection and Microbial Identification