Exvastat Team

David Cavalla

Dr David Cavalla


Dr. David Cavalla is an Executive Director with multidisciplinary scientific and business experience in both the biotechnology and pharmaceutical sectors. He has a successful record of founding and growing companies, advancing projects with diverse therapeutic approaches and innovative technologies from discovery into clinical development. David’s specialties are drug reprofiling and repurposing, licensing and commercial negotiation.
Andy McElroy

Dr Andy McElroy

Head of Program Management

Following his degree and PhD at the University of Cambridge, Andy joined Glaxo as a medicinal chemist in 1983 and moved to Pfizer in 1993 as a manager in the Medicinal Chemistry department. He served as Therapeutic Area lead for Cardiovascular, Neurodegeneration and Tissue Repair Chemistry and was also Therapeutic Area lead for Cardiovascular Research managing a portfolio of projects up to First in Human. In 2009 Andy became the External Research Solutions site head, leading a multidisciplinary team focussing on optimizing external research. In 2011 Andy founded The Research Network Limited, a global scientific consulting and project management group focussed on supporting Networked Drug Discovery and Development

Keith Purdy

CMC Leader

Keith is a Pharmacist and holds a PhD in pharmaceutics.  His entire career has been within pharmaceutical R&D and he has experience across all CMC areas and formulation types within Boots R&D, Fisons, Astra and AstraZeneca.  Latterly Keith led the CMC project team delivering the AZ cardiovascular drug “Brilinta” from its first time in human study through to global regulatory approval and launch.  Since 2013, Keith has been an independent pharmaceutical consultant assisting a wide range of SMEs, academic units and large Pharma in formulation development, clinical trial supplies and overall CMC project management

Frances Holmwood

Program Support

Frances has worked in both large pharma and small biotech for 25 years in a variety of research based roles, including synthetic chemistry, chemical IP and patent writing, data and information management and business management. More recently she has provided project management support to a number of Pharmaceutical R&D start-up companies.