Gilead Sciences Inc is to spend $21 billion to expand its oncology portfolio with the acquisition of Immunomedics Inc of Morris Plains, New Jersey, US. Immunomedics has a marketed antibody-drug conjugate (ADC) for triple-negative breast cancer which is said to have potential in other cancer indications both as a monotherapy and in combination with other treatments. The takeover was announced on 13 September after being unanimously approved by the boards of both companies. It is expected to close in the fourth quarter.
