HTD is a private company located in Pleasanton, California.  HTD has worked and collaborated  with other companies, governments and academia. Our researchers  have helped other companies develop their products. An example of a product that was formulated and developed at HTD Biosystems for a Japanese biotech company, is a liposomal formulation  against graft-versus-host disease (GvHD) associated with hematopoietic stem cell transplantation (HSCT). This product is now in Phase II clinical trials.