Imfinzi wins breakthrough therapy designation

AstraZeneca and MedImmune, have today announced  that the US Food and Drug Administration (FDA) has granted breakthrough therapy designation for Imfinzi (durvalumab) for the treatment of patients with locally-advanced, unresectable non-small cell lung cancer (NSCLC) whose disease has not progressed following platinum-based chemoradiation therapy.

The breakthrough therapy designation is designed to expedite the development and regulatory review of new medicines that are intended to treat a serious condition and that have shown encouraging early clinical results, which demonstrate substantial improvement on a clinically-significant endpoint over available medicines and when there is significant unmet medical need.

Imfinzi was granted on the basis of interim results from the Phase III PACIFIC trial, a randomised, double-blinded, placebo-controlled multi-centre trial of Imfinzi as sequential treatment in patients with locally-advanced, unresectable (Stage III) NSCLC who had not progressed following standard platinum-based chemotherapy concurrent with radiation therapy. This achievement follows the recent accelerated approval from the US FDA for Imfinzi in previously-treated patients with advanced bladder cancer, and is the fourth breakthrough therapy designation AstraZeneca has received from the FDA for a New Oncology cancer medicine over the past three years, the second for Imfinzi.

Imfinzi is also being tested in the adjuvant NSCLC setting in the ADJUVANT Phase III trial. In the Stage IV 1st-line setting for patients with advanced NSCLC, Imfinzi as monotherapy and in combination with tremelimumab, an anti-CTLA4, is being tested in the MYSTIC, NEPTUNE, and PEARL Phase III trials. The AstraZeneca POSEIDON trial is evaluating Imfinzi with and without tremelimumab in combination with chemotherapy.