In a new amendment to the present study, we aim to test this by including four new patients with ME/CFS following a SARS-CoV2 infection who fulfil the trial inclusion criteria, and who have baseline NK-cell numbers above 125 (x106/L). In this amendment, the daratumumab dosing schedule has been reduced. These data will be published later as a case series. Possible interventions for antibody-targeting therapies in Long COVID have recently been summarized (
60).