title: Peripheral blood progenitor cell collections in multiple myeloma: predictors and management of inadequate collections.
abstract: Thirty-seven patients with previously treated multiple myeloma (MM) underwent peripheral blood progenitor cell (PBPC) collection following high-dose cyclophosphamide and GM-CSF or sequential IL-3 and GM-CSF. Patients with an inadequate collection were considered for a second or third collection. 25 patients underwent subsequent autotransplant. The only variable predictive of CFU-GM yield was the extent of prior melphalan therapy. All repeat collections were unsuccessful and patients infused with an autograft obtained from multiple sets of collections had a high incidence of delayed engraftment. We conclude that melphalan should be avoided or PBPC collection performed early in the disease course in patients who are potential transplant candidates.
authors.affiliation: University of Toronto Autologous Blood and Marrow Transplant Program, Ontario, Canada.
authors.forename: H M
authors.initials: HM
authors.lastname: Prince
authors.forename: K
authors.initials: K
authors.lastname: Imrie
authors.forename: D R
authors.initials: DR
authors.lastname: Sutherland
authors.forename: A
authors.initials: A
authors.lastname: Keating
authors.forename: J
authors.initials: J
authors.lastname: Meharchand
authors.forename: R M
authors.initials: RM
authors.lastname: Crump
authors.forename: C
authors.initials: C
authors.lastname: Girouard
authors.forename: K
authors.initials: K
authors.lastname: Trip
authors.forename: A K
authors.initials: AK
authors.lastname: Stewart
mesh_terms: D000328:Adult; D000368:Aged; D018906:Antineoplastic Agents, Alkylating / Q000009:adverse effects* / Q000627:therapeutic use; D005260:Female; D006085:Graft Survival; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D007937:Leukapheresis; D008297:Male; D008558:Melphalan / Q000009:adverse effects* / Q000627:therapeutic use; D008875:Middle Aged; D009101:Multiple Myeloma / Q000188:drug therapy / Q000628:therapy*; D013048:Specimen Handling / Q000379:methods; D014182:Transplantation, Autologous
chemical_list: D018906:Antineoplastic Agents, Alkylating; D008558:Melphalan