Calvert Labs was acquired by Altasciences in May 2021. First Class Studies. First Class Service. Calvert Labs is a preclinical CRO offering a wide range of lead identification, lead optimization and preclinical services, while providing clients with scientific guidance, regulatory excellence and customized study designs. For over 40 years, we have been partnering with clients to help them strengthen their pipelines and develop the next generation of therapeutics aimed at improving and extending human life. To date, Calvert Labs has made significant contributions to numerous IND and NDA applications, many which are now commercially marketed therapeutics. Our team has a collective 150+ years experience in various regulatory agency submissions globally, where none of our studies have ever been rejected for reasons of design or technical performance. Our experience and proven track record span over virtually all therapeutic areas and drug categories, ensuring a continuum of value to the changing needs of your business. We’ll work with you through every step of each phase of early-stage drug development – starting with discovery and proceeding through the design and performance of preclinical studies to launch you into clinical development. A Closer Collaboration Creates a Clearer Path to IND.