phase inclusion criteria ii additional ecog expansion search specific bilirubin exclusion criteria tnbc cohort specific treatment patients patient phase screening expansion escalation dose ii enrollment participants biopsies syndrome history segment inclusion criteria registration specific screening treatment patients arm cohort patient cohorts expansion participants enrolled patients combination dose disease treatment prior cohort expansion patients dose criteria participants inclusion treatment specific phase ribociclib pdr fulvestrant cohort dose prior expansion treatment run long escalation dose cohort expansion phase patients enrolled stage combination portion eligibility criteria infusion lymphodepletion tvs ctl meet proceed phase specific