Novo Nordisk A/S, whose main therapeutic focus is diabetes, has expanded its presence in the field of rare blood disorders with an agreement to acquire Forma Therapeutics Holdings Inc of the US. Forma’s lead product etavopivat is a small molecule allosteric activator of the red blood cell isoform of pyruvate kinase. It is being developed to improve anaemia and red blood cell health in people with sickle cell disease.