P648: T CELL PHENOTYPIC CHANGES IN PARTICIPANTS OF A MULTIPHASE OPTIMIZATION STRATEGY (MOST) BEHAVIORAL INTERVENTION OF HEALTHY DIET AND EXERCISE IN PATIENTS (PTS) WITH CHRONIC LYMPHOCYTIC LEUKEMIA (CLL). (23rd June 2022) - Gordon, M.; Crane, J.; Lee, C. Y.; Fares, S.; Basen-Engquist, K.; Markofski, M.; Ferrajoli, A.; LaVoy, E.