Intravenous immunoglobulin and prednisolone to women with unexplained recurrent pregnancy loss after assisted reproductive technology treatment: a randomised, double-blind, placebo-controlled trial

ClinicalTrials.Gov: NCT04701034. Registration date: 5 January 2021EudraCT number: 2020-000256-35; Registration date: 11 November 2020The North Denmark Region Committee on Health Research Ethics: N-20200066, Registration date: 16 December 2020The Data Protection Agency: 2020-156; Registration date: 4 November 2020WHO universal trial number: U1111-1273-8585Date of first patient's enrolment: 28 January 2021.