scholarly journals Allogeneic Hematopoietic Stem Cell Transplantation in Patients Older than 65 Years with Acute Myeloid Leukemia and Myelodysplastic Syndrome: A 15-Year Experience

Author(s):  
Simona Piemontese ◽  
Lorenzo Lazzari ◽  
Annalisa Ruggeri ◽  
Magda Marcatti ◽  
Maria Teresa Lupo Stanghellini ◽  
...  

Abstract Background. Median age of occurrence of acute myeloid leukemias (AML) and myelodisplastc syndromes (MDS) is 65 years and older. Nevertheless, the use of allogeneic stem cell transplant (allo-HCT) has been historically limited to younger population, namely due to excess in non-relapse-mortality (NRM) in olders. Methods. In the present study, we analyzed all consecutive patients aged ≥ 65y diagnosed with AML (71, 81%) or MDS (19, 19%) who received transplants from adult donors at our center from January 2005 to December 2019. Results. Median age was 68.29y (65.02-76.54), 26pts (29%) aged ≥ 70y. Thirty-three (37%) pts received a HLA-matched donor. Conditioning regimen was myeloablative in 46pts (51%). The 3-year overall survival (OS) was 53+/-6%, and disease free survival (DFS) 45+/-6% (Figure 1). Day-100 and 3-year NRM was 17+/-2% and 29+/-2%, respectively. The 3-year CI of relapse was 22+/-2%. Day-100 CI of aGvHD was 21+/-2% for grade II-IV, 14+/-1% for grade III-IV. The 3-year CI of cGvHD was 35+/-3%, extensive 20+/-2%. In multivariate analysis, the Karnofsky Performance Status (KPS) < 90% was associated with lower OS (HR: 2.999, CI: 1.477- 6.691; p=0.002), DFS (HR: 3.155, CI: 1.593 - 6.250; p=0.001) and higher NRM (HR: 2.997, CI: 1.344-6.682; p=0.041). HCT-CI ≥ 3 was also associated with higher NRM (HR: 2.949, CI: 1.166-7.462, p=0.022,). Diagnosis of MDS and receiving a matched donor with PTCy were associated with longer OS (HR: 0.3440, CI: 0.1029-0.915; p=0.033; HR: 0.197, CI: 0.042-0.934; p=0.041).Conclusions. Age alone should not limit transplant eligibility for AML and MDS. KPS and HCT-CI proved to be useful for patient selection among the elderly. The use of HLA-matched donors with PTCy improved OS compared to ATG in our consecutive series.

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 4879-4879
Author(s):  
Omar Albanyan ◽  
Hyejeong Jang ◽  
Seongho Kim ◽  
Andrew Kin ◽  
Asif Alavi ◽  
...  

Abstract Introduction: Severe aplastic anemia (SAA) is a rare hematopoietic stem cell disorder characterized by hypocellular marrow and pancytopenia. Multiple factors play an important role in treatment approach include age, comorbidities, degree of pancytopenia and availability of stem cell donor to either immunosuppression irrespective (IST) or allogenic hematopoietic stem cell transplant (alloSCT). The use of nonmyeloablative conditioning regimen has improved the outcomes, however the choice for post-transplant GVHD prophylaxis remain a topic of debate. The use of mycophenolate mofetil (MMF) has been used as an alternative for methotrexate (MTX) as has shown to be associated with lower incidence of mucositis and shorter time to engraftment. Methods: We retrospectively evaluated consecutive adult patients with SAA who underwent alloSCT at Karmanoc Cancer Institute. All patients received fludarabine, cyclophosphamide and antithymocyte globulin for conditioning regimen with calcineurin inhibitors (CNI) and MMF for GVHD prophylaxis. MMF was started at day -3 at 15 mg/kg three times daily and stopped at day +30 in the absence of active GVHD. The primary objectives were to estimate cumulative incidence of acute (aGVHD) and chronic GVHD (cGVHD) and overall survival (OS). Secondary objectives were to evaluate time to engraftment, days of hospitalization and incidence of mucositis. Results: From January 2005 and May 2019, 33 patients with SAA underwent alloSCT. Patient characteristics are detailed in Table 1. Median age was 36 years (range, 18-71). Twenty-seven patients received bone marrow stem cells (82%) and six patients received peripheral blood stem cells (18%). Thirty patients (91%) received 8/8 HLA matched donor and three patients (9%) received 7/8 HLA matched donor. Sixteen patients (48%) received stem cells from sibling donor and 17 patients (52%) received stem cells from unrelated donor. Thirteen patients (39%) had received IST prior to alloSCT, and 20 patients (61%) received upfront alloSCT. For GVHD prophylaxis all patients received MMF and CNI (tacrolimus=32, and cyclosporine=1). Median time from diagnosis to transplant was 15.8 months for patients who received IST prior to alloSCT and 2 months for patients who received upfront alloSCT. Median time to platelet engraftment was 13.5 days and neutrophil engraftment was 12 days, while one patient experienced graft failure. The median number of days for hospital stay were 25 days. Four patients (11%) developed grade I-II mucositis, no grade III-IV mucositis was observed in the first 30 days and 6 patients had CMV reactivation. The 100-day cumulative incidence rate of grade II-IV aGVHD was 21.2% (95% CI, 9.2 - 36.5), grade III-IV aGVHD was 9.1% (2.3-21.9) and 1-year CIR of cGVHD was 21.2% (95% CI, 9.2-36.5). Comparing patients who received IST prior to alloSCT versus upfront alloSCT, the 100-day CIR of grade II-IV aGVHD was 30.8% (95% CI, 8.2 - 56.5) and 15% (95% CI, 3.6 - 34.0), respectively, (Gray p=0.26) and the 3-year CIR of cGVHD was 39.6% (95% CI, 13.1 - 65.5) and 27.8% (95% CI, 9.2 - 50.3), respectively, (Gray p=0.37). Comparing patients who received alloSCT from related versus unrelated donor, 100-day CIR of II-IV aGVHD was 12.5% (95% CI, 1.9 - 33.6) and 29.4% (95% CI, 10.2 - 51.9), respectively, (Gray p=0.26), and the 3-year CIR of cGVHD was 34.2% (95% CI, 11.4 - 58.9) and 29.4% (95% CI, 10.1 - 52.0), respectively (Gray p=0.90). Median follow up of surviving patient was 5 years (95% CI, 3.1-6.8). Three-year OS was 87% (95% CI, 75.7- 99.9) and median OS was not reached. Six patients died by the time of the analysis, one patient died from graft failure (86 days after transplant from 8/8 HLA MUD), two patients died due infectious complications (808 days and 1637 days after transplant), three patients died due to multiorgan failure (215, 297 and 1097 days after transplant). Conclusion: Our data with use of CNI and MMF for GVHD prophylaxis for SAA following alloSCT with nonmyeloablative conditioning regimen showed that the rate of mucositis was low, engraftment time was rapid, and hospitalization was short, while OS, rates of acute and chronic GVDH were comparable to previously published rates with CNI and MTX-based GVHD prophylaxis. Figure 1 Figure 1. Disclosures Modi: Genentech: Research Funding; Seagen: Membership on an entity's Board of Directors or advisory committees; MorphoSys: Membership on an entity's Board of Directors or advisory committees. Deol: Kite, a Gilead Company: Consultancy.


Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 5324-5324
Author(s):  
Marion Raflores ◽  
James Rossetti ◽  
John Lister ◽  
Richard Shadduck ◽  
John Lech ◽  
...  

Abstract INTRODUCTION:Use of a reduced intensity conditioning regimen (RICR) in hematopoietic stem cell transplant may result in lower treatment related mortality (TRM), less acute graft versus host disease (aGVHD) and better survivability, utilizing the graft versus tumor effect from HSCT. METHODS: Our institution’s original RICR protocol conditioning regimen (Trial A) consists of fludarabine 30 mg/m2 (Day-5 to D-2), melphalan 140–180 mg/m2 (Day -3) and ethyol 910 mg/m2 (Day-3) in addition to mycophenolate mofetil 1 g q12H and tacrolimus(serum level 5–15 ng/ml) beginning Day -3 as immunosuppressive therapy. Transplantation was done using peripheral blood stem cells from the best HLA-antigen match sibling (allo) or matched unrelated donor (MUD). We retrospectively compared transplant data from this original protocol to a modified RICR protocol (Trial B) using a lower dose of melphalan 100mg/m2 and addition of thymoglobulin 2mg/kg/d (D-2 to D0). RESULTS: 46 patients were transplanted in Trial A with median age of 46 years. 25 patients had allogeneic and 21 had MUD transplant. 30 patients were transplanted in Trial B with median age of 44 years. 22 patients had an allogeneic and 8 had a MUD transplant. All patients were heavily pretreated with 13 patients in Trial A and 9 patients in Trial B have undergone at least one previous stem cell transplant. At D30, all patients in Trial B were alive while 11% of patients in Trial A died of treatment related cause. At D100, 51% of patients in Trial A and 70% of patients in Trial B were alive. D100 TRM was 40% in Trial A and 20% in Trial B. Table 1. Treatment Outcome OS(%) TRM (%) RM (%) Trial A Trial B Trial A Trial B Trial A Trial B OS:overall survival TRM:treatment related mortality RM: relapse mortality 30 Days MUD 81 100 19 0 0 0 Allo 96 100 4 0 0 0 Total 89 100 11 0 0 0 100 days MUD 40 63 60 38 0 0 Allo 60 73 24 14 16 14 Total 51 70 40 20 9 10 1 year overall survival was 30% in trial A and 20% in Trial B. 1 year disease free survival (DFS) was 18% in trial A and 13% in Trial B. Table 2. 1 year treatment outcome* Overall Survival(%) Disease Free Survival (DFS) % Trial A Trial B Trial A Trial B *for Trial B, 5 living patients have not yet reached 1 year follow-up MUD 21 13 14 0 Allo 37 23 21 18 Total 30 20 18 13 Incidence of aGVHD≥2 in patients not receiving DLI and alive for more than 30 days post transplant was 56% in Trial A (MUD 67%, Allo50%) and 25% in Trial B (MUD63%, Allo 6%). At D100, aGVHD was the most common cause of death in Trial A while overwhelming sepsis was leading cause of death in Trial B. WBC engraftment with ANC&gt;500 was achieved in 98% of patients in Trial A and 93% of patients in Trial B. Average day of engraftment was 13 days in Trial A and 15 days in Trial B. Platelet engraftment with platelet count at least 20,000 was achieved in 80% of patients in both protocols with average day of engraftment at 18 days in Trial A and 21 days in Trial B. 95% of patients in Trial A had achieved at least 80% donor marrow cells at D100 while only 81% achieved this level of chimerism in Trial B. CONCLUSION: The modified RICR protocol for HSCT is a tolerable regimen which results in a lower incidence of D100 TRM and aGVHD but overall and disease free survival are not improved. Marrow engraftment is achieved although slightly delayed compared to the original protocol.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 5467-5467
Author(s):  
Mariano Berro ◽  
Juan Garcia ◽  
Ana Basquiera ◽  
Maria Marta Rivas ◽  
Maria Cecilia Foncuberta ◽  
...  

Abstract Materials and Methods We retrospectively reviewed 137 medical records of patients older than 50 years receiving an allogeneic hematopoietic stem cell transplant (HSCT) in 9 centers from Argentina. We evaluated the following characteristics: sex, age, diagnosis, stage, comorbidities (according to the HCT-CI score), type of donor, histocompatibility, source, conditioning and immunosupression. We analyzed the incidence and severity of acute Graft-vs-Host disease (aGVHD) with Chi Square, Overall Survival (OS) and Disease Free Survival (DFS) with Kaplan Meier and Relapse, Non Relapse Mortality y chronic GVHD (cGVHD) with CI. For multivariate analysis (MA) we included variables that in univariate had a p<0.2, used Cox regression model for time dependant outcomes and logistic regression for dichotomic variables, considering significant a p<0.05. Results Patients characteristics are listed in table 1. Between January 1997 and July 2013, 137 transplants were performed in adults older than 50 years, with a median follow up 1.3 years. Acute GVHD incidence was 41% (19% were grade II and 7.3% III-IV). The only variable associated with aGVH clinically significant (G II-IV) was AML that was protective (14% vs 35%, p<0.01; significant in MA, HR 0.29; 95% CI 0.12-0.72). Chronic GVHD incidence was 25%, extensive in 9.4% and the only risk factor for this outcome was MPN (1-3 years 40%-NA vs 12-20%, p=<0.01). Global OS 1 and 3 years was 44 and 20%, DFS was 33 and 20%, Relapse was 35 and 41% and NRM was 36 and 43% respectively. Co-morbid patients showed a significant increase in NRM (HCT.CI 0 vs 1 vs ≥2, 1-3 years 17-24%, 40-46% and 45-67%, p=0.01; significant in MA, for HCT.CI 0 vs ≥1, HR 2.4, 95% CI 1.12-5.25), as well as male patients (1-3 years 36-47% vs 23-27%, p=0.03), MPN (1-3 years 43-65% vs 29.34%, p=0.01) and Cyclosporine based immunosuppressant regimen (CSA) vs tacrolimus (1-3 years 47-53% vs 25-36%, p=0.01). AML patients experienced a higher relapse rate (1-3 years 50-50% vs 28-32%, p<0.01) as well as Fludarabine-Busulfan conditioning (1-3 years 45-48% vs 31-32%, p=0.02). Finally patients without comorbidities (HCT.CI 0 vs ≥1) had higher OS (1-3 years 54-30% vs 36-16%, p=0.03) and DFS (1-3 years 43-31% vs 30-15%, p=0.05) as well as tacrolimus vs CSA base regimen that had higher OS (1-3 years 49-25% vs 31-13%, p=0.01) and DFS (1-3 year 41-26% vs 20-11%, p<0.01; significant in MA, HR 0.56, 95% CI 0.33-0.98). Age (older than 60 vs younger), type of donor, use of myeloablative conditioning regimen and source did not showed any significant difference in the outcome analyzed. Conclusion HSCT is a valid therapeutic option for older patients. In this retrospective analysis of patients older than 50 years, we found that the main risk factors that impact in transplant outcome are patients comorbidities and not age, whereas transplant related toxicities increase with the number of comorbidities and therefore decrease OS and DFS. Beyond the fact that certain disease experienced more aGHVD (AML) or cGVHD and higher NRL (MPN) the other factor significantly related in transplant outcome was the use of tacrolimus vs CSA. Disclosures: No relevant conflicts of interest to declare.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 2038-2038 ◽  
Author(s):  
Francesco Saraceni ◽  
Myriam Labopin ◽  
Edouard Forcade ◽  
Nicolaus Kröger ◽  
Gerard Socie ◽  
...  

Thanks to the recent developments in transplant procedures, an increasing number of patients with acute myeloid leukemia (AML) with a poor Karnofsky Performance Status (KPS) score are currently offered an allogeneic hematopoietic stem cell transplantation (allo-HCT). Nevertheless, little data is available about outcome of this fragile population. We report here the results of a retrospective study designed to evaluate outcome of patients with AML undergoing allo-HCT with KPS score ≤80%. The analysis included patients with AML aged ≥18 years, undergoing allo-HCT in first remission between 2000 and 2018, with a KPS score at the time of transplant between 50% and 80%. Patients who received manipulated grafts or had incomplete data about cytogenetics were excluded. Conditioning intensity was defined according to EBMT definitions. A total of 2,963 patients were identified. Median age at transplant was 55 years (18-77 years). Median year of transplant was 2014. The KPS score was =80% in 85% of the patients and <80% in 15% of the patients. Cytogenetic risk was good, intermediate or poor in 6%, 68% and 26% of the patients, respectively. Donor type was sibling (MSD), matched (10/10 UD), mismatched (9/10 UD) unrelated, haploidentical (haplo) or cord blood (CB) in 47%, 35%, 8%, 6% and 4% of patients, respectively. Conditioning was myeloablative (MAC) or reduced-intensity (RIC) in 42% and 58% of patients. Stem cell source was PBSC or BM in 84% and 14% of the patients. Anti-thymocyte globulin (ATG) was administered to 55% of the patients. Cumulative incidence of grade II-IV and III-IV acute GVHD (aGvHD) was 26% and 8%, respectively. The 2-year cumulative incidence of chronic GVHD (cGvHD) and severe cGVHD was 38% and 18%. Non-relapse mortality (NRM) and relapse incidence (RI) at 2 years were 19% and 27%, respectively. Notably, in the subgroup of patients with KPS <80% NRM rate was as high as 27%. At 2 years, leukemia-free survival (LFS), overall survival (OS) and GVHD-free, relapse-free survival (GRFS) rates were 54%, 59% and 41%, respectively. On multivariate analysis, transplant from a MSD was associated with a reduced risk of aGvHD (10/10 UD HR 1.8, 9/10 UD HR 2.4, haplo HR 1.9, CB HR 3.4, p<10-4, MSD as reference) and NRM (10/10 UD HR 1.4, 9/10 UD HR 2.4, haplo HR 1.8, CB HR 2, p<10-3, MSD as reference) as compared to all other donor types (Table 1). Transplant from 10/10 UD was associated with lower GRFS (HR 1.2, p=0.03), while 9/10 UD predicted inferior LFS, OS and GRFS (HR 1.6, 1.7, and 1.5, respectively, p<0.001) as compared to MSD. Patients with KPS score of 80% had significantly lower NRM and improved survival as compared to patients with KPS score <80% (NRM: HR 0.6, p<10-4; OS: HR 0.7, p<10-4). Other factors independently associated with improved OS were younger age, female sex, good or intermediate risk cytogenetics and de-novo AML. Notably, administration of ATG was associated with reduced risk of developing grade II-IV aGVHD (HR 0.7, p<10-4), cGVHD (HR 0.6, p<10-4), severe cGVHD (HR 0.5, p<10-4) and predicted improved GRFS (HR 0.8, p<0.01). In order to compare outcome following MAC and RIC conditioning the analysis was restricted to patients receiving transplant from MSD or UD. Patients with a KPS score =80% or <80% were analyzed separately. In the group of patients with a KPS score of 80%, a RIC regimen was associated with higher RI (HR 1.4, p<0.01), higher incidence of severe cGVHD (HR 1.6, p<0.001), and inferior GRFS (HR 1.3, p<0.001) as compared to MAC. NRM was not significantly different following RIC or MAC in this population. In contrast, in patients with a KPS score <80%, RIC was associated with lower NRM (HR 0.3, p<0.0001) and better LFS (HR 0.6, p<0.01), OS (HR 0.5, p<0.0001) and GRFS (HR 0.6, p<0.01) as compared to MAC. In conclusion, allo-HCT is feasible in patients with acute myeloid leukemia in first remission and KPS score <80%, with acceptable NRM and survival rates. As for the conditioning regimen, in patients with a KPS score of 80% a MAC regimen was associated with lower relapse rate, similar NRM and better GRFS as compared to RIC, while in patients with a KPS score lower than 80% RIC was associated with reduced NRM and improved OS as compared to MAC. In addition, transplant from a MSD predicted a reduced risk of NRM and aGVHD as compared to other donor types. Notably, 9/10 UD was associated with significantly inferior survival as compared to MSD. Finally, administration of ATG correlated with reduced acute and chronic GVHD and improved GRFS. Disclosures Labopin: Jazz Pharmaceuticals: Honoraria. Kröger:Sanofi-Aventis: Research Funding; Celgene: Honoraria, Research Funding; DKMS: Research Funding; JAZZ: Honoraria; Medac: Honoraria; Neovii: Honoraria, Research Funding; Novartis: Honoraria, Research Funding; Riemser: Research Funding. Socie:Alexion: Consultancy. Blaise:Pierre Fabre medicaments: Honoraria; Jazz Pharmaceuticals: Honoraria; Sanofi: Honoraria; Molmed: Consultancy, Honoraria. Byrne:Ariad/Incyte: Honoraria, Speakers Bureau. Esteve:Astellas: Consultancy, Speakers Bureau; Novartis: Consultancy, Research Funding, Speakers Bureau; Celgene: Consultancy, Speakers Bureau; Amgen: Consultancy; Daiichi Sankyo: Consultancy; Jazz Pharmaceuticals: Consultancy; Roche: Consultancy; Pfizer: Consultancy. Mohty:Jazz Pharmaceuticals: Honoraria, Research Funding.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 5227-5227 ◽  
Author(s):  
Karthikeyan A. Ramasamy ◽  
Ruth Branford ◽  
Radha Selvaratnam ◽  
Aloysius Y.L. Ho ◽  
Rafael Duarte ◽  
...  

Abstract Autologous stem cell transplantation is an established treatment that leads to prolongation in overall and disease free survival in MM. BEAM and M have been widely used as conditioning regimen for autologous stem cell transplant (ASCT) in patients with MM. At our centre MM patients with low creatinine clearance (Crcl) and a low performance status were offered Melphalan only as conditioning regime for ASCT. We report on our experience of HDM in comparison with standard BEAM. Records of 53 consecutive patients who had ASCT for myeloma at our centre between 2000 and 2003 were examined. Patients were staged as per Salmon and Durie (SD) criteria and EBMT response criteria were used for assessment post transplant .35 patients had BEAM conditioning (SD criteria 31-IIIA, 3-IA, 1-IIA) and 18(SD criteria 14- IIIA, 4-IIIB) had M.).Patients who received BEAM had a median age of 55 (range 38–66), median follow up of 19 months and those who received HDM had a median age of 60 (range 45 –69), follow up of 20.5 months. Stem cell source was peripheral blood (PBSC) in 50 patients, 1 Bone marrow (BM), and 2 BM and PBSC. HDM at a Dosage of 140 –200 mg/m2was administered in all HDM cases except for 1 patient who had 70mg/m2 because of Crcl of 17.4 ml/min. BEAM group had Carmustine 300mg/m2 (−6), Ara- C 800mg/m2 (−5 to −2), Etoposide 800mg/m2 (−5 to −2), M 140mg/m2 (−1). Patients in the M group had significantly lower haemoglobin and higher serum creatinine levels in comparison with the BEAM group. The 100-day treatment related mortality (TRM) was 5.5 % in HDM group, which was comparable to 2.2 % in the BEAM group. 9 out of 18 patients who had HDM relapsed and 9 out of 35 patients who had BEAM relapsed at follow up with Median relapse free survival (RFS) being 575 days in HDM group and has not achieved yet in BEAM group (p= .017). This data confirm that BEAM ASCT lead to significant prolongation of disease free survival with low TRM.Our data also suggest the effectiveness of HDM in patients who because of poor performance status and/or abnormal renal function may not tolerate BEAM ASCT


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3048-3048
Author(s):  
Sonali M. Smith ◽  
Koen van Besien ◽  
Jeanette Carreras ◽  
Julie M. Vose ◽  
Hillard M. Lazarus ◽  
...  

Abstract Autologous HCT (autoHCT) salvages many patients (pts) with relapsed lymphomas but few relapsing after an autoHCT are cured. We determined feasibility of stem cell collection, engraftment kinetics, treatment-related mortality (TRM), progression free survival (PFS), and overall survival (OS) for a second autoHCT (HCT2) for lymphoma relapsing after prior HCT (HCT1). We studied 35 pts, 20 with HL and 15 with diffuse or follicular large cell and immunoblastic NHL, receiving a HCT2 for relapse between 1986 and 2003 and reported to the CIBMTR. Median (range) age at HCT2 was 36 yrs (16–61); 61% had a performance score less than 90. HCT2 was performed >1 year after HCT1 in 80%. Median (range) time from diagnosis to HCT1 was 20 mo (4–162 mo), from HCT1 to relapse, 17 mo (3–68 mo), and from relapse to HCT2, 5 mo (1–40 mo). 83% underwent a 2nd stem cell / marrow harvest prior to HCT2. Median time to ANC >0.5 x 109/L was 11d. CBV or BEAM were the conditioning regimens for HCT1 in 80% and for HCT2 in 60%. The best response to HCT2 was complete remission in 22 pts and partial remission in 5; 8 pts had either no response or progressive disease. At a median follow up of 92 mo (32–124 mo) after HCT2, 26 pts (74%) have died with 17 (65%) dying of relapsed lymphoma. Two (6%) patients developed therapy-related MDS. The probability of TRM at day 100 was 12% (95% CI, 3–25%). The 1, 3 and 5 yr probability of PFS were 45% (95% CI, 29–62%), 33% (95% CI, 18–50%) and 30% (95% CI, 15–46%), respectively. The 1, 3 and 5 yr probability of OS were 63% (95% CI, 46–78%), 34% (95% CI, 19–50%) and 31% (95% CI, 17–47%), respectively. There were no differences in outcomes between HL or NHL. Pts relapsing >6mo after HCT1 appeared to have better OS (fig 1 and 2). In summary, HCT2 is feasible in pts with lymphoma after relapsing an HCT1. Stem cells harvested prior to HCT2 resulted in rapid engraftment with a day 100 TRM (12%) lower than that reported for alloHCT in this setting. Relapse is the primary reason for failure, but approximately one-third of pts enjoy long-term disease free survival. HCT2 should be considered for young pts with relapsed HL or NHL post-HCT1 without alternative transplant options. HCT1 (%) HCT2 (%) Sensitive disease status pre-HCT 26 (79) 24 (75) Stem cell source BM 15 (43) 10 (29) PBSC 13 (37) 21 (60) Both 7 (20) 4 (11) Median days to platelet recovery ≥ 20 x 109 /L 17 (7–376) 20 (1–101) Stem cell harvest between HCT1 and HCT2 29 (83) Different conditioning regimen for HCT2 25 (74) Outcomes TRM @ 1 yr 21 (9–37) PFS @ 5yrs 30 (15–46) OS @ 5 yrs 31 (17–47) Figure 1 Figure 1. Figure 2 Figure 2.


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