Allogene (ALLO) Clinical Hold on CAR-T Studies Removed by FDA Posted byZacks Equity Research January 11, 2022 Leave a comment on Allogene (ALLO) Clinical Hold on CAR-T Studies Removed by FDA The FDA removes the hold on Allogene’s (ALLO) clinical studies evaluating AlloCAR T therapy candidates after investigations confirmed that there is no chromosomal abnormality in its candidates.