<qa>  What is the last genetically-modified T-cell therapy that the patient received?---At least 6 months have elapsed since the last genetically-modified T-cell therapy that the patient received and there is no evidence of replication-competent retroviruses evidence must be provided from prior NIH gene-therapy protocol Principal Investigator and persisting genetically-modified T cells are not detectable in the patient s blood evidence must be provided by prior NIH gene-therapy protocol Principal Investigator. 