A Swiss start-up, Araris Biotech AG, with new technology for antibody-drug conjugates (ADC), has raised an additional CHF 12.7 million in seed financing to advance its candidate drugs towards the clinic, bringing the total amount raised to CHF 15.2 million. The newest round was led by Pureos Bioventures of Zurich which noted that the company’s technology addresses some of the limitations of existing therapies.