Figure 1.

Administration schedule. Abbreviations: [¹³¹I]IPA, 4-L-[¹³¹I]iodo-phenylalanine; Bq, becquerel; D, day; EOS, end of study; FU, follow-up; XRT, external radiation therapy. ^*Interval from the end of screening to day 0 might be ≤19 days owing to [¹³¹I]IPA manufacturing lead times; ^†Number of fractions subject to investigator’s discretion and depending on the day of [¹³¹I]IPA administration; ^‡The second and third fractions had to be administered on the same day of the week, and some hours after administration of the respective XRT dose of that day.