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1.  Efficacy of High-dose Chemotherapy and Autologous Stem Cell Transplantation in Patients with Relapsed Medulloblastoma: A Report on The Korean Society for Pediatric Neuro-Oncology (KSPNO)-S-053 Study 
Journal of Korean Medical Science  2010;25(8):1160-1166.
The efficacy and toxicity of high-dose chemotherapy and autologous stem cell transplantation (HDCT/ASCT) were investigated for improving the outcomes of patients with relapsed medulloblastoma. A total of 15 patients with relapsed medulloblastoma were enrolled in the KSPNO-S-053 study from May 2005 to May 2007. All patients received approximately 4 cycles of salvage chemotherapy after relapse. Thirteen underwent HDCT/ASCT; CTE and CM regimen were employed for the first HDCT (HDCT1) and second HDCT (HDCT2), respectively, and 7 underwent HDCT2. One transplant related mortality (TRM) due to veno-occlusive disease (VOD) occurred during HDCT1 but HDCT2 was tolerable with no further TRM. The 3-yr overall survival probability and event-free survival rates ±95% confidence intervals (CI) were 33.3±12.2% and 26.7% ±11.4%, respectively. When analysis was confined to only patients who had a complete response (CR) or partial response (PR) prior to HDCT, the probability of 3-yr overall survival rates ±95% CI was 40.0±15.5%. No patients with stable disease (SD) or progressive disease (PD) survived. Survival rates from protocol KSPNO-S-053 are encouraging and show that tumor status prior to HDCT/ASCT is an important factor to consider for improving survival rates of patients with relapsed medulloblastoma.
doi:10.3346/jkms.2010.25.8.1160
PMCID: PMC2908784  PMID: 20676326
Recurrence; Medulloblastoma; Transplantation, Autologous; Tandem; Hematopoietic Stem Cell Transplantation
2.  High-dose chemotherapy and autologous peripheral blood stem cell transplantation in the treatment of children and adolescents with Ewing sarcoma family of tumors 
Korean Journal of Pediatrics  2013;56(9):401-406.
Purpose
We performed a pilot study to determine the benefit of high-dose chemotherapy and autologous peripheral blood stem cell transplantation (HDCT/autoPBSCT) for patients with Ewing sarcoma family of tumors.
Methods
We retrospectively analyzed the data of patients who received HDCT/autoPBSCT at Korea Cancer Center Hospital. Patients with relapsed, metastatic, or centrally located tumors were eligible for the study.
Results
A total of 9 patients (3 male, 6 female), with a median age at HDCT/autoPBSCT of 13.4 years (range, 7.1 to 28.2 years), were included in this study. Patients underwent conventional chemotherapy and local control either by surgery or radiation therapy, and had achieved complete response (CR, n=7), partial response (n=1), or stable disease (n=1) prior to HDCT/autoPBSCT. There was no transplant-related mortality. However, the median duration of overall survival and event-free survival after HDCT/autoPBSCT were 13.3 months (range, 5.3 to 44.5 months) and 6.2 months (range, 2.1 to 44.5 months), respectively. At present, 4 patients are alive and 5 patients who experienced adverse events (2 metastasis, 2 local recur, and 1 progressive disease) survived for a median time of 2.8 months (range, 0.1 to 10.7 months). The 2-year survival after HDCT/autoPBSCT was 44.4%±16.6% and disease status at the time of HDCT/autoPBSCT tended to influence survival (57.1%±18.7% of cases with CR vs. 0% of cases with non-CR, P=0.07).
Conclusion
Disease status at HDCT/autoPBSCT tended to influence survival. Further studies are necessary to define the role of HDCT/autoPBSCT and to identify subgroup of patients who might benefit from this investigational treatment.
doi:10.3345/kjp.2013.56.9.401
PMCID: PMC3819677  PMID: 24223602
Ewing sarcoma; High-dose chemotherapy; Stem cell transplantation
3.  Clinical characteristics and treatment outcomes of children with anaplastic large cell lymphoma: a single center experience 
Blood research  2014;49(4):246-252.
Background
Anaplastic large cell lymphoma (ALCL) is uncommon in children, accounting for approximately 15% of all cases of childhood non-Hodgkin lymphoma. Despite many studies attempting new treatment strategies, treatment outcomes have not significantly improved, and the optimal treatment for pediatric ALCL has not been established.
Methods
The records of newly diagnosed ALCL patients at our institute between July 1998 and April 2013 were reviewed. We evaluated the general characteristics of the patients, chemotherapy regimens, overall survival (OS) rates, and event-free survival (EFS) rates.
Results
Twenty-eight ALCL patients were eligible. The median age at diagnosis was 10.8 years. Lymph node involvement was the most common presentation (79%). CCG-5941, a multi-agent T-cell lineage chemotherapy, was the predominant treatment regimen (57%). The five-year OS and EFS rates were 88% and 69%, respectively. Stage, the presence of B symptoms, lung involvement, and bone marrow involvement were significant prognostic factors for EFS (P=0.02, 0.01, 0.01, and 0.02, respectively). Eight patients relapsed, and three died during the study period. Four of the eight patients who relapsed were treated with high-dose chemotherapy and autologous stem cell transplantation (HDCT-ASCT). Two of the four who had undergone HDCT-ASCT developed secondary relapses and were subsequently treated with allogeneic SCT or brentuximab.
Conclusion
We found that treatment outcomes with multi-agent chemotherapy in children with ALCL were similar to those of previous reports, and that relapsed patients could be salvaged with HDCT-ASCT or allogeneic SCT. A prospective, larger cohort study is warranted to define the optimal treatment for pediatric ALCL.
doi:10.5045/br.2014.49.4.246
PMCID: PMC4278006  PMID: 25548758
Anaplastic large cell lymphoma; Childhood; Prognosis; Relpase
4.  High-dose Chemotherapy and Autologous Stem Cell Rescue in Patients with High-risk Stage 3 Neuroblastoma: 10-Year Experience at a Single Center 
Journal of Korean Medical Science  2009;24(4):660-667.
High-dose chemotherapy and autologous stem cell rescue (HDCT/ASCR) was applied to improve the prognosis of patients with high-risk stage 3 neuroblastoma. From January 1997 to December 2006, 28 patients were newly diagnosed as stage 3 neuroblastoma. Nine of 11 patients with N-myc amplification and 5 of 17 patients without N-myc amplification (poor response in 2 patients, persistent residual tumor in 2 and relapse in 1) underwent single or tandem HDCT/ASCR. Patients without high-risk features received conventional treatment modalities only. While 8 of 9 patients underwent single HDCT/ASCR and the remaining one patient underwent tandem HDCT/ASCR during the early study period, all 5 patients underwent tandem HDCT/ASCR during the late period. Toxicities associated with HDCT/ASCR were tolerable and there was no treatment-related mortality. While the tumor relapsed in two of eight patients in single HDCT/ASCR group, all six patients in tandem HDCT/ASCR group remained relapse free. The 5-yr event-free survival (EFS) from diagnosis, in patients with N-myc amplification, was 71.6±14.0%. In addition, 12 of 14 patients who underwent HDCT/ASCR remained event free resulting in an 85.1±9.7% 5-yr EFS after the first HDCT/ASCR. The present study demonstrates that HDCT/ASCR may improve the survival of patients with high-risk stage 3 neuroblastoma.
doi:10.3346/jkms.2009.24.4.660
PMCID: PMC2719186  PMID: 19654949
Neuroblastoma; High-dose Chemotherapy; Autologous Stem Cell Rescue; Prognosis; N-myc
5.  Immunotherapy with low-dose recombinant interleukin 2 after high-dose chemotherapy and autologous stem cell transplantation in neuroblastoma. 
British Journal of Cancer  1998;78(4):528-533.
The purpose of this study was to evaluate in a phase I-II trial whether low doses of recombinant human interleukin 2 (rHuIL-2) over a prolonged period of time are safe and effective in eradicating or controlling minimal residual disease in children with neuroblastoma given high-dose chemotherapy (HDCT) and autologous stem cell transplantation (ASCT). From January 1992 to July 1996, 17 consecutive patients, with either stage IV or relapsed neuroblastoma, were enrolled. Patients received rHuIL-2 after a median time interval (min-max) of 105 days (56-153) after HDCT and ASCT. The protocol consisted of 2 'priming' courses of rHuIL-2 at escalating doses administered intravenously at 72-h intervals, followed by 'maintenance' with 11 monthly and six bimonthly boosting 5-day courses administered subcutaneously on an outpatient basis. At April 1997, 7 out of the 17 patients had completed the treatment schedule, four had discontinued treatment because of toxicity and four because of relapse; the remaining two patients are still on treatment, having completed 15 courses. Expansion of T lymphocytes, together with an increase in both natural killer cells and in activated T lymphocytes was evidenced. After a median (min-max) follow-up time of 30 (16-64) months, 12 out of 17 patients are alive and well. Two patients relapsed and died 14 and 35 months after transplant. Three patients are alive after having relapsed at 41, 21 and 13 months. The actuarial 2-year event-free survival and overall survival are 67% and 92% respectively. Intermittent administration of low doses of rHuIL-2 given for a long period of time is well tolerated and seems capable of controlling minimal residual disease after HDCT and ASCT in children with high-risk neuroblastoma.
PMCID: PMC2063104  PMID: 9716039
6.  Reduced-dose craniospinal radiotherapy followed by tandem high-dose chemotherapy and autologous stem cell transplantation in patients with high-risk medulloblastoma 
Neuro-Oncology  2012;15(3):352-359.
Background
We assessed the feasibility and effectiveness of reduced-dose craniospinal (CS) radiotherapy (RT) followed by tandem high-dose chemotherapy and autologous stem cell transplantation (HDCT/autoSCT) in reducing late adverse effects without jeopardizing survival among children with high-risk medulloblastoma (MB).
Methods
From October 2005 through September 2010, twenty consecutive children aged >3 years with high-risk MB (presence of metastasis and/or postoperative residual tumor >1.5 cm2) were assigned to receive 2 cycles of pre-RT chemotherapy, CSRT (23.4 or 30.6 Gy) combined with local RT to the primary site (total 54.0 Gy), and 4 cycles of post-RT chemotherapy followed by tandem HDCT/autoSCT. Carboplatin-thiotepa-etoposide and cyclophosphamide-melphalan regimens were used for the first and second HDCT, respectively.
Results
Of 20 patients with high-risk MB, 17 had metastatic disease and 3 had a postoperative residual tumor >1.5 cm2 without metastasis. The tumor relapsed/progressed in 4 patients, and 2 patients died of toxicities during the second HDCT/autoSCT. Therefore, 14 patients remained event-free at a median follow-up of 46 months (range, 23−82) from diagnosis. The probability of 5-year event-free survival was 70.0% ± 10.3% for all patients and 70.6% ± 11.1% for patients with metastases. Late adverse effects evaluated at a median of 36 months (range, 12−68) after tandem HDCT/autoSCT were acceptable.
Conclusions
In children with high-risk MB, CSRT dose might be reduced when accompanied by tandem HDCT/autoSCT without jeopardizing survival. However, longer follow-up is needed to evaluate whether the benefits of reduced-dose CSRT outweigh the long-term risks of tandem HDCT/autoSCT.
doi:10.1093/neuonc/nos304
PMCID: PMC3578484  PMID: 23258845
autologous stem cell transplantation; high-dose chemotherapy; late effect; medulloblastoma; radiotherapy
7.  Tandem High-Dose Chemotherapy and Autologous Stem Cell Transplantation in Young Children with Atypical Teratoid/Rhabdoid Tumor of the Central Nervous System 
Journal of Korean Medical Science  2012;27(2):135-140.
The feasibility and effectiveness of tandem high-dose chemotherapy and autologous stem cell transplantation (HDCT/autoSCT) were evaluated in children younger than 3 yr of age with atypical teratoid/rhabdoid tumors (ATRT). Tandem HDCT/autoSCT was administered following six cycles of induction chemotherapy. Radiotherapy (RT) was administered if the tumor relapsed or progressed, otherwise, it was administered after 3 yr of age. Tumors relapsed or progressed during induction chemotherapy in 5 of 9 patients enrolled; 3 of these 5 received tandem HDCT/autoSCT as a salvage treatment. One patient died from sepsis during induction chemotherapy. The remaining 3 patients proceeded to tandem HDCT/autoSCT; however, 2 of these patients showed tumor relapse/progression after tandem HDCT/autoSCT. All 7 relapses/progressions occurred at primary sites even in patients with leptomeningeal seeding. Toxicities during tandem HDCT/autoSCT were manageable. A total of 5 patients were alive with a median follow-up of 20 (range 16-70) months from diagnosis. Four of 5 patients who received RT after relapse/progression are alive. The probability of overall survival at 3 yr from diagnosis was 53.3% ± 17.3%. Our tandem HDCT/autoSCT is feasible; however, early administration of RT prior to tandem HDCT/autoSCT should be considered to improve the outcome after tandem HDCT/autoSCT.
doi:10.3346/jkms.2012.27.2.135
PMCID: PMC3271285  PMID: 22323859
Rhabdoid Tumor; Central Nervous System; Drug Therapy; Stem Cell Transplantation; Radiotherapy; Child
8.  Consolidative high-dose chemotherapy after conventional-dose chemotherapy as first salvage treatment for male patients with metastatic germ cell tumours 
Introduction:
Some men with metastatic germ cell tumours that have progressed after response to initial cisplatin-based combination chemotherapy are cured with conventional dose first salvage chemotherapy (CDCT) – however, many are not. High-dose chemotherapy with autologous stem cell rescue (HDCT) may be of value in these patients. Prognosis has recently been better defined by International Prognostic Factor Study Group (IPFSG) prognostic factors. HDCT after response to CDCT has been offered at our institution over the past two decades. We retrospectively assessed the validity of the IPFSG prognostic factors in our patients and evaluated the value of HDCT.
Methods:
We identified eligible men with metastatic germ cell tumour progressed after at least 3 cycles of cisplatin-based chemotherapy and treated with cisplatin-based CDCT alone or with carboplatin-based HDCT. We also collected their clinical data. Patients were classified into risk groups using IPFSG factors, and progression-free and overall survival factors were analyzed and compared in patients treated with CDCT alone and with HDCT.
Results:
We identified 38 eligible first salvage patients who had received a median of 4 cycles (range, 1 to 7 cycles) of CDCT. Twenty patients received CDCT alone and 18 patients received CDCT plus HDCT. The overall median progression- free survival was 24.6 months (95%CI, 7.3 to 28.7 months) and overall median overall survival was 34.6 months (95%CI, 17.2 to 51.3 months). Distribution by IPFSG category and 2-year progression- free survival and 3-year overall survival rates within each risk category were very similar to the IPFSG results. There were two toxic deaths with CDCT and none with HDCT. Overall, patients treated with CDCT plus HDCT had improved progression- free survival and overall survival.
Conclusions:
The IPFSG prognostic risk factors appeared valid in our patient population. The safety of HDCT with etoposide and carboplatin was confirmed. HDCT was associated with improved progression- free survival and overall survival outcomes, consistent with observations of the IPFSG group. Ideally, the value of optimal HDCT should be determined in comparison to optimal CDCT as first salvage therapy in men with metastatic germ cell tumour with a randomized trial.
doi:10.5489/cuaj.11233
PMCID: PMC3328550  PMID: 22511417
9.  Efficacy of Tandem High-Dose Chemotherapy and Autologous Stem Cell Rescue in Patients Over 1 Year of Age with Stage 4 Neuroblastoma: The Korean Society of Pediatric Hematology-Oncology Experience Over 6 Years (2000-2005) 
Journal of Korean Medical Science  2010;25(5):691-697.
The efficacy of tandem high-dose chemotherapy and autologous stem cell rescue (HDCT/ASCR) was investigated in patients with high-risk neuroblastoma. Patients over 1 yr of age who were newly diagnosed with stage 4 neuroblastoma from January 2000 to December 2005 were enrolled in The Korean Society of Pediatric Hematology-Oncology registry. All patients who were assigned to receive HDCT/ASCR at diagnosis were retrospectively analyzed to investigate the efficacy of single or tandem HDCT/ASCR. Seventy and 71 patients were assigned to receive single or tandem HDCT/ASCR at diagnosis. Fifty-seven and 59 patients in the single or tandem HDCT group underwent single or tandem HDCT/ASCR as scheduled. Twenty-four and 38 patients in the single or tandem HDCT group remained event free with a median follow-up of 56 (24-88) months. When the survival rate was analyzed according to intent-to-treat at diagnosis, the probability of the 5-yr event-free survival±95% confidence intervals was higher in the tandem HDCT group than in the single HDCT group (51.2±12.4% vs. 31.3±11.5%, P=0.030). The results of the present study demonstrate that the tandem HDCT/ASCR strategy is significantly better than the single HDCT/ASCR strategy for improved survival in the treatment of high-risk neuroblastoma patients.
doi:10.3346/jkms.2010.25.5.691
PMCID: PMC2858826  PMID: 20436703
Neuroblastoma; High-dose Chemotherapy; Transplantation, Autologous
10.  High Dose Thiotepa in Patients with Relapsed or Refractory Osteosarcomas: Experience of the SFCE Group 
Sarcoma  2014;2014:475067.
Introduction. Osteosarcoma relapse has a poor prognosis, with less than 25% survival at 5 years. We describe the experience of the French Society of Paediatric Oncology (SFCE) with high dose (HD) thiotepa and autologous stem cell transplantation (ASCT) in 45 children with relapsed osteosarcoma. Patients and Methods. Between 1992 and 2004, 53 patients received HD thiotepa (900 mg/m2) followed by ASCT in 6 centres. Eight patients were excluded from analysis, and we retrospectively reviewed the clinical radiological and anatomopathological patterns of the 45 remaining patients. Results. Sixteen girls and 29 boys (median age, 15.9 years) received HD thiotepa after initial progression of metastatic disease (2), first relapse (26), and second or third relapse (17). We report 12 radiological partial responses and 9 of 31 histological complete responses. Thirty-two patients experienced further relapses, and 13 continued in complete remission after surgical resection of the residual disease. Three-year overall survival was 40%, and 3-year progression-free survival was 24%. Delay of relapse (+/− 2 years from diagnosis) was a prognostic factor (P = 0.011). No acute toxic serious adverse event occurred. Conclusion. The use of HD thiotepa and ASCT is feasible in patients with relapsed osteosarcoma. A randomized study for recurrent osteosarcoma between standard salvage chemotherapy and high dose thiotepa with stem cell rescue is ongoing.
doi:10.1155/2014/475067
PMCID: PMC3941142  PMID: 24672280
11.  Reduced-dose craniospinal radiotherapy followed by high-dose chemotherapy and autologous stem cell rescue for children with newly diagnosed high-risk medulloblastoma or supratentorial primitive neuroectodermal tumor 
The Korean Journal of Hematology  2010;45(2):120-126.
Background
In this study, we investigated the effects of reduced-dose craniospinal radiotherapy (CSRT) followed by tandem high-dose chemotherapy (HDCT) with autologous stem cell rescue (ASCR) in children with a newly diagnosed high-risk medulloblastoma (MB) or supratentorial primitive neuroectodermal tumor (sPNET).
Methods
Between March 2005 and April 2007, patients older than 3 years with a newly diagnosed high-risk MB or sPNET were enrolled. The patients received two cycles of pre-RT chemotherapy consisting of cisplatin, etoposide, vincristine, and cyclophosphamide (cycle A), and carboplatin, etoposide, vincristine, and ifosphamide (cycle B), followed by CSRT with 23.4 Gy and local RT with 30.6 Gy. After four cycles of post-RT chemotherapy (cycles A, B, A, and B), tandem double HDCT with ASCR was performed.
Results
A total of 13 patients (MB=11, sPNET=2) were enrolled. Of these, one patient progressed, one patient died of septic shock after the second cycle of B, and one patient relapsed after the third cycle of B. The 3-year event-free survival (EFS) rate of the patients intended for HDCT was 76.9%, whereas the 3-year EFS rate of the patients who received HDCT was 100%. No treatment-related mortality occurred during HDCT.
Conclusion
Although the follow-up period was short and the patient cohort was small in size, the results of this study are encouraging. The limited toxicity and favorable EFS rate observed in children treated with reduced-dose CSRT followed by HDCT and ASCR warrant further exploration in a larger study population.
doi:10.5045/kjh.2010.45.2.120
PMCID: PMC2983022  PMID: 21120191
Radiotherapy; High-dose chemotherapy; Autologous stem cell transplantation; Medulloblastoma; Supratentorial primitive neuroectodermal tumor; Children
12.  Autologous haematopoietic stem cell transplantation following high-dose chemotherapy for non-rhabdomyosarcoma soft tissue sarcomas: a Cochrane systematic review* 
BMJ Open  2014;4(7):e005033.
Objectives
We conducted a systematic review to compare the efficacy and adverse events of autologous haematopoietic stem cell transplantation (HSCT) following high-dose chemotherapy (HDCT) versus standard-dose chemotherapy (SDCT) in patients with locally advanced or metastatic non-rhabdomyosarcoma soft tissue sarcomas (NRSTS).
Setting
Patients were observed in hospital units specialised for cancer therapy.
Participants
The review evaluated 294 patients with 19 different subtypes of malignant NRSTS. The patients had a median age between 10 and 46 years (range 2–65) and were mostly men.
Primary and secondary outcome measure
The planned and measured primary outcomes were overall survival and treatment-related mortality. The planned and measured secondary outcomes were progression-free survival, grade 3–4 non-haematological toxicity and secondary neoplasia. Other secondary outcomes including disease-free survival, event-free survival and health-related quality of life were not reported.
Results
We included 62 studies reporting on 294 transplanted patients. We identified 1 randomised controlled trial (RCT) with 38 transplanted and 45 non-transplanted patients and judged a low risk of bias. We further identified 61 single-arm studies with 256 transplanted patients. Overall survival in the RCT was reported not statistically significantly different between autologous HSCT following HDCT versus SDCT. The HR was 1.26 (95% CI 0.70 to 2.29; p=0.44) and the point estimates at 3 years were 32.7% vs 49.4%. Data from single-arm studies were used to extract data on adverse events. Treatment-related mortality was reported in 5.1% (15 of 294) transplanted patients.
Conclusions
Overall survival in patients with locally advanced or metastatic NRSTS was not statistically different after autologous HSCT following HDCT compared with SDCT in a single RCT with a total of 83 patients. No other comparative study was available. The proportion of adverse events among the transplanted patients is not clear.
doi:10.1136/bmjopen-2014-005033
PMCID: PMC4120440  PMID: 25079925
Chemotherapy
13.  Late Relapses Following High-Dose Autologous Stem Cell Transplantation (HD-ASCT) for Hodgkin Lymphoma (HL) in the ABVD Therapeutic era 
Salvage chemotherapy followed by high dose autologous stem cell transplantation (HD-ASCT) is the standard of care for patients who have relapsed or refractory Hodgkin Lymphoma (HL). Few trials have had long-term follow-up post HD-ASCT in the ABVD era of treatment. We reviewed 95 consecutive patients who received HD-ASCT for relapsed or refractory HL following ABVD failure between 1990 and 2006 at the University of Rochester. Median follow-up for survivors was 8.2 years. All patients received HD-ASCT following up-front ABVD (or equivalent) failure. At 5 years, overall survival (OS) and event-free survival (EFS) were 54% and 37%, respectively. In total, 54 patients have died; 37 of these patients died directly of HL. Notably, there were 19 deaths > 3 years post HD-ASCT and 13 of these late deaths are directly attributable to HL. Furthermore, there were 51 documented relapses, 9 of which occurred >3 years post HD-ASCT. In contrast to other studies, we did not observe a plateau in EFS following transplantation. Patients appear to be at continuous risk of recurrence beyond 3 years after HD-ASCT. Our results emphasize the importance of long-term follow-up for both toxicity and recurrence, and have important implications in defining success of post-transplant maintenance strategies.
doi:10.1016/j.bbmt.2011.08.012
PMCID: PMC3269502  PMID: 21871246
Hodgkin lymphoma; hematopoietic stem cells; late effects of therapy; relapsed and refractory disease; HD-ASCT
14.  Rituximab Maintenance Therapy After Autologous Stem-Cell Transplantation in Patients With Relapsed CD20+ Diffuse Large B-Cell Lymphoma: Final Analysis of the Collaborative Trial in Relapsed Aggressive Lymphoma 
Journal of Clinical Oncology  2012;30(36):4462-4469.
Purpose
The standard treatment for relapsed diffuse large B-cell lymphoma (DLBCL) is salvage chemotherapy followed by high-dose therapy and autologous stem-cell transplantation (ASCT). The impact of maintenance rituximab after ASCT is not known.
Patients and Methods
In total, 477 patients with CD20+ DLBCL who were in their first relapse or refractory to initial therapy were randomly assigned to one of two salvage regimens. After three cycles of salvage chemotherapy, the responding patients received high-dose chemotherapy followed by ASCT. Then, 242 patients were randomly assigned to either rituximab every 2 months for 1 year or observation.
Results
After ASCT, 122 patients received rituximab, and 120 patients were observed only. The median follow-up time was 44 months. The 4-year event-free survival (EFS) rates after ASCT were 52% and 53% for the rituximab and observation groups, respectively (P = .7). Treatment with rituximab was associated with a 15% attributable risk of serious adverse events after day 100, with more deaths (six deaths v three deaths in the observation arm). Several factors affected EFS after ASCT (P < .05), including relapsed disease within 12 months (EFS: 46% v 56% for relapsed disease after 12 months), secondary age-adjusted International Prognostic Index (saaIPI) more than 1 (EFS: 37% v 61% for saaIPI < 1), and prior treatment with rituximab (EFS: 47% v 59% for no prior rituximab). A significant difference in EFS between women (63%) and men (46%) was also observed in the rituximab group. In the Cox model for maintenance, the saaIPI was a significant prognostic factor (P < .001), as was male sex (P = .01).
Conclusion
In relapsed DLBCL, we observed no difference between the control group and the rituximab maintenance group and do not recommend rituximab after ASCT.
doi:10.1200/JCO.2012.41.9416
PMCID: PMC3646314  PMID: 23091101
15.  Double high-dose chemotherapy with autologous stem cell transplantation in patients with high-risk neuroblastoma: a pilot study in a single center. 
Journal of Korean Medical Science  2002;17(4):537-543.
Double high-dose chemotherapy (HDCT) was applied to 18 patients with highrisk neuroblastoma including 14 patients who could not achieve complete response (CR) even after the first HDCT. In 12 patients, successive double HDCT was rescued with peripheral blood stem cells collected during a single round of leukaphereses and in 6 patients, second or more rounds of leukaphereses were necessary after the first HDCT to rescue the second HDCT. The median interval between the first and second HDCT (76 days; range, 47-112) in the single harvest group was shorter than that (274.5 days; range, 83-329) in the double harvest group (p<0.01). Hematologic recovery was slow in the second HDCT. Six (33.3%) treatment-related mortalities (TRM) occurred during the second HDCT but were not related to the shorter interval. Disease-free survival rates at 2 years with a median follow-up of 24 months (range, 6-46) in the single and double harvest group were 57.1% and 33.3%, respectively. These results suggest that successive double HDCT using the single harvest approach may improve the survival of high-risk patients, especially who could not achieve CR after the first HDCT despite delayed hematologic recovery and high rate of TRM during the second HDCT.
PMCID: PMC3054907  PMID: 12172052
16.  Long-term Outcome of Patients with Metastatic Breast Cancer Treated with High-Dose Chemotherapy and Transplantation of Purified Autologous Hematopoietic Stem Cells 
Metastatic breast cancer remains a major treatment challenge. The use of high-dose chemotherapy (HDCT) with rescue by autologous mobilized peripheral blood (MPB) is controversial, in part due to contamination of MPB by circulating tumor cells. CD34+Thy- 1+ selected hematopoietic stem cells (HSC) represent a graft source with a greater than 250,000-fold reduction in cancer cells. Here, we present the long-term outcome of a pilot study determining feasibility and engraftment using HDCT and purified HSC in patients with metastatic breast cancer. Twenty-two patients who had been treated with standard chemotherapy were enrolled into a phase I/II trial between 12/1996 to 02/1998, and underwent HDCT followed by rescue with CD34+Thy-1+ HSC isolated from autologous MPB. More than 12 years after the end of the study 23% (5/22) of HSC recipients are alive, 18% (4/22) free of recurrence with normal hematopoietic function. Median PFS was 16 months and median OS was 60 months. Retrospective comparison with 74 patients transplanted between 02/1995 and 06/1999 with the identical HDCT regimen but rescue with unmanipulated MPB show that 9% of patients are alive, and 7% without disease. Median PFS was 10 months and median OS was 28 months. In conclusion, cancer-depleted HSC following HDCT resulted in better than expected 12- 14 year PFS and OS in a cohort of metastatic breast cancer patients. These data prompt us to look once again at purified HSC transplantation in a protocol powered to test for efficacy in advanced stage breast cancer patients.
doi:10.1016/j.bbmt.2011.07.009
PMCID: PMC4113088  PMID: 21767515
17.  Predictive Value of Post-Transplant Bone Marrow Plasma Cell Percent in Multiple Myeloma Patients Undergone Autologous Transplantation 
Background/Aims
Autologous stem cell transplantation (ASCT) has become the treatment of choice for patients with multiple myeloma (MM). Studies have shown that maintenance treatment with interferon-alpha is associated with improved survival rates following ASCT. However, despite these recent advances in regimes, relapses are inevitable; thus, the prediction of relapse following ASCT requires assessment.
Methods
We retrospectively analyzed 39 patients who received ASCT between 2003 and 2008. All patients received chemotherapy with vincristine, adriamycin, and dexamethasone (VAD), and ASCT was performed following high-dose melphalan conditioning therapy. We evaluated the influence of the post-transplant day +14 (D+14) bone marrow plasma cell percent (BMPCp) (≥ 2 vs. < 2%), international scoring system (ISS) stage (II vs. III), response after 3 cycles of VAD therapy (complete response [CR] vs. non-CR), deletion of chromosome 13q (del[13q]) (presence of the abnormality vs. absence), and BMPCp at diagnosis (≥ 50 vs. < 50%) on progression-free survival (PFS) and overall survival (OS).
Results
During the median follow-up of 28.0 months, the median PFS and OS were 29.1 and 42.1 months, respectively. By univariate analysis, ISS stage III at diagnosis, BMPCp ≥ 50% at diagnosis, CR after 3 cycles of VAD therapy, del (13q) by fluorescence in situ hybridization, and BMPCp ≥ 2% at post-transplant D+14 were correlated with PFS and OS. A multivariate analysis revealed that a post-transplant D+14 BMPCp ≥ 2% (PFS, hazard ratio [HR] = 4.426, p = 0.008; OS, HR = 3.545, p = 0.038) and CR after 3 cycles of VAD therapy (PFS, HR = 0.072, p = 0.014; OS, HR = 0.055, p = 0.015) were independent prognostic parameters.
Conclusions
Post-transplant D+14 BMPCp is a useful parameter for predicting the outcome for patients with MM receiving ASCT.
doi:10.3904/kjim.2011.26.1.76
PMCID: PMC3056259  PMID: 21437166
Multiple myeloma; Stem cell transplantation; Bone marrow; Plasma cell
18.  Current Status of Autologous Stem Cell Transplantation in Relapsed and Refractory Hodgkin's Lymphoma 
The Oncologist  2011;17(1):80-90.
New developments in the treatment of patients with relapsed/refractory Hodgkin's lymphoma undergoing autologous stem cell transplantation are summarized including modern prognostic markers, the role of functional imaging, the role of newer drugs, different conditioning regimens, and maintenance therapy.
Despite the relatively high long-term disease-free survival (DFS) rate for patients with Hodgkin lymphoma (HL) with modern combination chemotherapy or combined modality regimens, ∼20% of patients die from progressive or relapsed disease. The standard treatment for relapsed and primary refractory HL is salvage chemotherapy followed by high-dose chemotherapy and autologous stem cell transplantation (ASCT), which has shown a 5-year progression-free survival rate of ∼50%–60%. Recent developments in a number of diagnostic and therapeutic modalities have begun to improve these results. Functional imaging, refinement of clinical prognostic factors, and development of novel biomarkers have improved the predictive algorithms, allowing better patient selection and timing for ASCT. In addition, these algorithms have begun to identify a group of patients who are candidates for more aggressive treatment beyond standard ASCT. Novel salvage regimens may potentially improve the rate of complete remission prior to ASCT, and the use of maintenance therapy after ASCT has become a subject of current investigation. We present a summary of developments in each of these areas.
doi:10.1634/theoncologist.2011-0177
PMCID: PMC3267827  PMID: 22210089
Autologous stem cell transplant; Hodgkin's lymphoma; High-dose chemotherapy
19.  Autologous stem cell transplantation for mantle cell lymphoma – single centre experience 
Contemporary Oncology  2013;17(5):456-459.
Aim of the study
Mantle cell lymphoma (MCL) is a B-cell neoplasm showing resistance to conventional chemotherapy. High-dose chemotherapy followed by autologous stem cell transplantation (ASCT) may result in higher progression-free (PFS) and overall survival (OS) when used as a consolidation for younger and fit patients.
Material and methods
We retrospectively evaluated the results of ASCT for MCL. Patients were transplanted after achieving first or subsequent complete or partial response after conventional chemotherapy.
Results
Twenty patients (7 male and 13 female) at median age of 59 years (range 41–68) were included. 90% of transplanted patients had stage III/IV disease at diagnosis and low, intermediate and high MIPI scores occurred in 5, 9 and 6 patients respectively. Induction chemotherapy consisted of the R-CHOP regimen in all patients except one who received R-CVAD. The disease status at transplant was as follows: first complete response (n = 13); second complete response (n = 4) and partial response (n = 3). The conditioning regimen prior to ASCT consisted of CBV and BEAM for 18 and 2 patients, respectively. The transplant-related mortality was 0% at day 100. Median OS and PFS were 48 and 29.8 months, respectively. The estimated 5-year OS and PFS were found to be 52% and 35%, respectively. After median follow-up after ASCT of 36 months (range 11–73), 10 patients were alive with 8 remaining in complete remission (CR) whereas 2 relapsed and received salvage chemotherapy. Ten patients died from disease recurrence and subsequent chemoresistance.
Conclusions
ASCT as a consolidation for MCL patients is found to be an effective and safe procedure.
doi:10.5114/wo.2013.37223
PMCID: PMC3934030  PMID: 24596536
mantle cell lymphoma; autologous stem cell transplantation; results
20.  The impact of novel therapeutic agents before and after frontline autologous stem cell transplantation in patients with multiple myeloma 
Blood research  2013;48(3):198-205.
Background
Novel agents (NAs) such as thalidomide and bortezomib have been administered in combination with autologous stem-cell transplantation (ASCT) to effectively treat multiple myeloma (MM). However, whether NAs perform better as induction treatments prior to transplantation, or as post-transplant maintenance therapies remains unclear.
Methods
We retrospectively analyzed 106 consecutive patients with MM who underwent ASCT within 1 year of diagnosis as first-line therapy.
Results
Eighty-seven (82.1%) patients received NAs before ASCT, whereas 68 (64.2%) received NAs after ASCT. NAs were administered to each patient as follows: before ASCT alone (N=29, 27.4%), after ASCT alone (N=10, 9.4%) or both before and after ASCT (N=58, 54.7%). High-quality rates before and after ASCT were significantly higher for patients who received NAs as induction treatment compared to those who did not receive pre-transplant NAs. At a median follow-up of 37.9 months, the 3-year progression-free survival (PFS) and overall survival (OS) rates were 42.8% and 70.2%, respectively. The PFS and OS were significantly higher in patients with NAs as post-transplant maintenance treatment (P=0.03 and P=0.04, respectively), but not in those with NAs as pre-transplant induction treatment. The PFS of patients with NAs before and after ASCT was higher than that of the patients with NAs as induction therapy alone (P=0.05). Age, serum β2-microglobulin level, complete response after ASCT, and NA use post-ASCT independently predicted survival outcomes.
Conclusion
These findings suggest that integration of NAs post-ASCT could benefit patients with MM undergoing ASCT. Induction therapy using NAs also improves high-quality response rates before and after ASCT.
doi:10.5045/br.2013.48.3.198
PMCID: PMC3786280  PMID: 24086940
Multiple myeloma; Novel agents; Autologous stem cell transplantation; Induction and maintenance treatment
21.  Autologous stem cell transplantation in HIV-related lymphoma in the rituximab era – a feasibility study in a monocentric cohort 
Journal of the International AIDS Society  2014;17(4Suppl 3):19648.
Introduction
Since the introduction of highly active antiretroviral therapy (HAART) [1] and later on the availability of anti-CD20 monoclonal antibody treatment [2], the therapeutic options as well as the prognosis of AIDS related lymphoma (ARL) have been improved. There is however no uniform agreement on how to treat patients who do not achieve a partial remission, who experience a relapse or who have very aggressive subtypes. Autologous hematopoietic stem cell transplantation (ASCT) has become an option for those patients. We retrospectively examined ARL patients to elucidate the feasibility of high-dose chemotherapy and autologous stem cell transplantation.
Patients and methods
Data of seven male and one female HIV+ patients with ARL was collected and informed consent was obtained. Age, HIV disease characteristics (CD4 count, HIV-RNA-PCR, ART) and transplantation-related details (histopathology, myeloablative therapy, neutrophil engraftment and NCI-CTCAE during/after transplantation as well as follow up and survival) were obtained from the patients’ medical records.
Results
Eight patients were treated with the intent of ASCT. The median age was at 64 years. Four patients had experienced prior AIDS. The median CD4 NADIR was at 157/µl, the median CD4 count at diagnosis of lymphoma at 81/µl. Five patients were receiving combination antiretroviral therapy (cART) at the time of lymphoma diagnosis, four of which had achieved a viral load of less than 50/µl. Two patients have died, due to (Nr. 8) a transplant-related complication (non-infectious leukoencephalophathy). The other patient died of an unknown reason (351 days after transplantation). The median survival is at 345 days to date. The time until engraftment was well at 11 days. Grade 3/4 haematological toxicity was present in all patients. Five out of three patients developed infectious complications, but there were no infection-related deaths. One patients (Nr. 4) developed a Kaposi Sarcoma reactivation that necessitated further chemotherapy.
Conclusions
ASCT is feasible in high risk ARL with good engraftment. Toxicity was substantial and studies are needed to define which patients have an unduly high risk of toxicity.
doi:10.7448/IAS.17.4.19648
PMCID: PMC4224782  PMID: 25394152
22.  Quality of Life after Autologous Peripheral Blood Stem Cell Transplantation and High-Dose Chemotherapy in High-Risk Breast Cancer Patients 
Breast Care  2009;4(6):379-386.
Summary
Background
As long-term survivors of breast cancer after autologous peripheral blood stem cell transplantation (ASCT) are becoming more numerous, studies addressing the issue of long-term follow-up are necessary. In this study, we report on the quality of life (QOL) after ASCT and high-dose chemotherapy (HDCT).
Patients and Methods
The QOL questionnaire version 3.0 by the European Organization for Research and Treatment of Cancer (EORTC QLQ-C30 version 3.0) was filled in by patients and healthy controls at 5 time points. After obtaining the results, we analyzed the correlation between QOL and the effect factors.
Results
Some functions got significantly worse, and some symptoms got more serious after ASCT and HDCT. However, most of them improved with time and were comparable to the healthy controls after 5 years. QOL was in part related to age, tumor characteristics, educational level, marriage status, and income.
Conclusions
Evaluating QOL allows medical workers to fully understand a patient's state of health, and aid the estimation and selection of clinical treatment methods as well as improve recovery.
doi:10.1159/000266759
PMCID: PMC2942001  PMID: 20877673
Quality of life; Autologous peripheral blood stem cell transplantation; High-risk breast cancer
23.  MYELOABLATIVE THERAPY WITH AUTOLOGOUS STEM CELL RESCUE FOR PATIENTS WITH EWING SARCOMA 
Bone marrow transplantation  2008;41(10):867-872.
Summary
The aim of this study was to identify risk factors associated with progression-free survival in patients with Ewing sarcoma undergoing autologous stem cell transplantation (ASCT); 116 patients underwent ASCT in 1989-2000 and reported to the Center for International Blood and Marrow Transplant Research. Eighty patients (69%) received ASCT as first-line therapy and 36 (31%), for recurrent disease. Risk factors affecting ASCT were analyzed with use of the Cox regression method. Metastatic disease at diagnosis, recurrence prior to ASCT and performance score <90 were associated with higher rates of disease recurrence/progression. Five-year probabilities of progression-free survival in patients with localized and metastatic disease at diagnosis who received ASCT as first-line therapy were 49% (95% CI 30 – 69) and 34% (95% CI 22 – 47) respectively. The 5-year probability of progression-free survival in patients with localized disease at diagnosis, and received ASCT after recurrence was 14% (95% CI 3 – 30). Progression-free survival rates after ASCT are comparable to published rates in patients with similar disease characteristics treated with conventional chemotherapy, surgery and irradiation suggesting a limited role for ASCT in these patients. Therefore, ASCT if considered should be for high-risk patients in the setting of carefully controlled clinical trials.
doi:10.1038/bmt.2008.2
PMCID: PMC3164955  PMID: 18246113
Autologous transplant; Ewing sarcoma; Progression-free survival
24.  Prognostic Value of EMT-Circulating Tumor Cells in Metastatic Breast Cancer Patients Undergoing High-Dose Chemotherapy with Autologous Hematopoietic Stem Cell Transplantation 
Journal of Cancer  2012;3:369-380.
Background: Circulating tumor cells (CTCs) are an independent prognostic factor in metastatic breast cancer (MBC) patients treated by conventional dose chemotherapy. The aim of this study was to determine the role of CTCs and CTCs undergoing epithelial-mesenchymal transition (EMT) in metastatic breast cancer. We used the platform of high-dose chemotherapy (HDCT) and autologous hematopoietic stem cell transplantation (AHSCT) to study the CTCs and CTCs with EMT.
Patients and methods: CTCs were enumerated in 21 MBC patients before apheresis and 1 month after AHSCT. CD34-depleted apheresis products were analyzed for CD326+ epithelial and Aldefluor+ cancer stem cells (CSC) by flow cytometry and were depleted of CD45+ cells and assessed for EMT-inducing transcription factors (EMT-TF) by quantitative RT-PCR.
Results: Patients with ≥ 5 CTCs/7.5 mL of peripheral blood 1 month after AHSCT had shorter progression-free survival (PFS) (P=0.02) and overall survival (OS) (P=0.02). Patients with apheresis products containing high percentages of CD326+ epithelial cells or overexpressing EMT-TF had shorter PFS. In multivariate analysis, low percentage of CD326+ epithelial cells and response to HDCT with AHSCT were associated with longer PFS, whereas lower CTCs after AHSCT was associated with longer OS. High CTCs, 1 month after AHSCT correlated with shorter PFS and OS in MBC patients undergoing HDCT and AHSCT, while CTCs with EMT and CSCs phenotype in apheresis products are associated with relapse.
Conclusion: Our data suggest that CTC and CTCs with EMT are prognostic in MBC patients undergoing HDCT followed by AHSCT.
doi:10.7150/jca.5111
PMCID: PMC3471078  PMID: 23074378
metastatic breast cancer; circulating tumor cells; epithelial-mesenchymal transition; high-dose chemotherapy; autologous hematopoietic stem cell transplantation.
25.  High-Dose Chemotherapy Followed by Autologous Stem Cell Transplantation as a First-Line Therapy for High-Risk Primary Breast Cancer: A Meta-Analysis 
PLoS ONE  2012;7(3):e33388.
Background and Objectives
Several trials have generated conflicting results about the results of high-dose chemotherapy followed by autologous stem cell transplantation (HDCT) for primary breast cancer. This meta-analysis summarizes the available evidence from all suitable studies.
Design and Methods
Prospective, randomized trials with HDCT as a first-line therapy for primary breast cancer were included in this meta-analysis. The primary outcome of interest for our analysis was survival (disease-free survival and overall survival); secondary endpoints included treatment-related mortality (TRM) and second (non-breast) cancers. We used a median age of 47, a PR positive rate of 50% and a premenopausal rate of 70% as cutoff values to complete the subgroup analyses, which were pre-planned according to the prepared protocol.
Results
Fourteen trials with 5747 patients were eligible for the meta-analysis. Compared with non-HDCT, non-significant second (non-breast) cancers (RR = 1.28; 95% CI = 0.82–1.98) and higher TRM (RR = 3.42; 95% CI = 1.32–8.86) were associated with HDCT for primary breast cancer. A significant DFS benefit of HDCT was documented (HR = 0.89; 95% CI = 0.79–0.99). No difference in OS (overall survival) was found when the studies were pooled (HR = 0.91; 95% CI = 0.82–1.00, p = 0.062). In subgroup analysis, age and hormone receptor status had a significant interaction with prolonged DFS and OS.
Conclusions
HDCT has a benefit on DFS and OS compared to SDC in some special patients with high-risk primary breast cancer.
doi:10.1371/journal.pone.0033388
PMCID: PMC3299795  PMID: 22428041

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