Experimental: Phase 0: One arm; Phase I: One arm
Phase 0: 6 patients, intravenous application of 2 x 1 gigabequerel (GBq) 177Lu-PP-F11N with and without Physiogel (crossover)
Phase I: expected 12 - 18 patients, intravenous application of max. 6 x 7-8 GBq 177Lu-PP-F11N (increasing number of applications by one in groups of three patients). All patients with or without Physiogel, depending on the results of the phase 0 study.