PMID- 15667625 OWN - NLM STAT- MEDLINE DCOM- 20050527 LR - 20161124 IS - 1397-3142 (Print) IS - 1397-3142 (Linking) VI - 9 IP - 1 DP - 2005 Feb TI - Low toxicity and efficacy of (153)samarium-EDTMP and melphalan as a conditioning regimen for secondary acute myelogenous leukemia. PG - 122-6 AB - We report the case of a 15-yr-old girl who developed secondary acute myelogenous leukemia (AML) 4 yr after completion of therapy for metastatic Ewing sarcoma (primary right acetabulum with metastatic disease to the lungs). Peripheral blood stem cells were collected after the second cycle of chemotherapy with the plan for future consolidation with high-dose chemotherapy and autologous stem cell rescue; however, because of the patient's excellent response to chemotherapy and surgery, therapy was completed without the need for high-dose chemotherapy. No human leukocyte antigen (HLA)-matched related donor was available for a bone marrow transplant. Because of previous lung radiation, high-dose samarium [30 mCi/kg of samarium-153 ethylenediaminetetramethylenephosphonate ((153)Sm-EDTMP) day -14] and melphalan (140 mg/m(2) day -2) were chosen as the conditioning regimen to avoid potential lung complications. The patient received an infusion of 6.1 x 10(8)/kg mononuclear autologous cells on day 0. She achieved engraftment on day +23. Three years after transplantation, she continues to have complete remission. Samarium and melphalan constitute a well-tolerated regimen with potential antileukemic activity. FAU - Rodriguez, Vilmarie AU - Rodriguez V AD - Division of Pediatric Hematology/Oncology, Mayo Clinic, Rochester, MN 55905, USA. rodriguez.vilmarie@mayo.edu FAU - Erlandson, Linda AU - Erlandson L FAU - Arndt, Carola A S AU - Arndt CA FAU - Wiseman, Gregory A AU - Wiseman GA FAU - Anderson, Peter M AU - Anderson PM LA - eng PT - Case Reports PT - Journal Article PL - Denmark TA - Pediatr Transplant JT - Pediatric transplantation JID - 9802574 RN - 0 (Organometallic Compounds) RN - 0 (Organophosphorus Compounds) RN - 0 (Radioisotopes) RN - 42OD65L39F (Samarium) RN - 745X144DZY (samarium Sm-153 lexidronam) RN - Q41OR9510P (Melphalan) SB - IM MH - Adolescent MH - Female MH - Humans MH - Leukemia, Myeloid, Acute/*therapy MH - *Melphalan MH - Organometallic Compounds/*therapeutic use MH - Organophosphorus Compounds/*therapeutic use MH - *Radioisotopes MH - *Samarium MH - Stem Cell Transplantation MH - Transplantation Conditioning/*methods MH - Transplantation, Autologous EDAT- 2005/01/26 09:00 MHDA- 2005/05/28 09:00 CRDT- 2005/01/26 09:00 PHST- 2005/01/26 09:00 [pubmed] PHST- 2005/05/28 09:00 [medline] PHST- 2005/01/26 09:00 [entrez] AID - PTR248 [pii] AID - 10.1111/j.1399-3046.2005.00248.x [doi] PST - ppublish SO - Pediatr Transplant. 2005 Feb;9(1):122-6. doi: 10.1111/j.1399-3046.2005.00248.x.