After several delays, the interleukin-15 superagonist Anktiva (nogapendekin alfa inbakicept) from Immunitybio Inc. has been approved by the U.S. FDA for treating bladder cancer, specifically Bacillus Calmette-Guérin-unresponsive non-muscle-invasive bladder cancer with carcinoma in situ, with or without papillary tumors.