Note that MHRA have issued the below notice regarding Biotin Interference with Thyroid Function Tests (Immunoassays). FDA had previously issued guidance regarding this topic Testing for Biotin Interference in In Vitro Diagnostic Devices | FDA. Although MHRA have specifically highlighted the issue with TFT tests, manufacturers should consider Biotin interference with their Immunoassays more generally.
MHRA have an ongoing consultation regarding real world evidence in clinical trials.