title: US regulator stops leukemia treatment trial after three patients die.
authors.affiliation: London.
authors.forename: Nigel
authors.initials: N
authors.lastname: Hawkes
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects*; D002986:Clinical Trials as Topic; D006801:Humans; D007167:Immunotherapy / Q000009:adverse effects*; D007938:Leukemia / Q000401:mortality* / Q000628:therapy*; D017211:Treatment Failure; D014481:United States; D014486:United States Food and Drug Administration; D014740:Vidarabine / Q000009:adverse effects / Q000031:analogs & derivatives*
chemical_list: D014740:Vidarabine; C024352:fludarabine