definiens: means a bi - specific T - cell engager protein comprising two or more antigen - binding domains which binda T - cell and a target cell thereby bringing the two cells into close proximity intended to modulate or trigger animmune response against the target cell, and for the avoidance of doubt is not a CAR ; has the meaning set out in Clause 10.1.3 ; has the meaning set out in Clause 17.1 ; means patient clinical data generated from either theCARPALL Study or the ALLCAR19 Study and ( i ) described in Schedule 2 under the title CAT19 Know - How, with the heading Patient Clinical Data or ( ii ) which is otherwise generated after the Second AmendmentDate ; means the Permitted Study described in Schedule 1 under the heading CAT19 Programand conducted under UCL ’s sponsorship with funding from ( i ) Children with Cancer UK, ( ii ) Great Ormond StHospital Children ’s Charity and ( iii ) J P Moulton Charitable Foundation ; means the CAT19 Product developed in the CAT19 Program ( the ), and any other CAT19 Product as may be modified by [COMPANY] or any Sub - Licensee after the SecondAmendment Date that is developed using any of the CARPALL and ALLCAR19 Patient Clinical Data either in aPhase 2 study following directly a clinical study conducted under the CAT19 Program, or pursuant to a bridgingstudy or similar adjunctive study intended to demonstrate that the modified CAT19 Product is equivalent to theOriginal CAT19 Product ; means a CAT19 Product that is not a CAT19 1st Gen Product ; has the meaning set out in Clause 2.2.16 ; means any product or therapy which ( i ) targets the CD19 Antigen and is covered by, uses, incorporates or has been developed using any of the CAT19 Program IP ; or ( ii ) were it not for the license toCAT19 Program IP hereunder, would otherwise infringe any Patent Right licensed under the CAT19 ProgramIP ; CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR PORTIONS OF THIS EXHIBIT . THE COPY FILEDHEREWITH OMITS THE INFORMATION SUBJECT TO A CONFIDENTIALITY REQUEST . OMISSIONS AREDESIGNATED [ * * * ] . A COMPLETE VERSION OF THIS EXHIBIT HAS BEEN FILED SEPARATELY WITH THESECURITIES AND EXCHANGE COMMISSION