Development of a prognostic model for grading chronic graft-versus-host disease

Blood ◽  
2001 ◽  
Vol 97 (5) ◽  
pp. 1219-1226 ◽  
Author(s):  
Görgün Akpek ◽  
Marianna L. Zahurak ◽  
Steven Piantadosi ◽  
Jeffrey Margolis ◽  
Jon Doherty ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Risk Groups ◽  
Primary Treatment ◽  
Prognostic Models ◽  
Karnofsky Performance Score ◽  
Primary Therapy ◽  
Host Disease ◽  
Graft Versus Host ◽  
Progressive Type

The disease-specific survival (DSS) of 151 patients with chronic graft-versus-host disease (cGVHD) was studied in an attempt to stratify patients into risk groups and to form a basis for a new grading of cGVHD. The data included the outcome and 23 variables at the diagnosis of cGVHD and at the primary treatment failure (PTF). Eighty-nine patients (58%) failed primary therapy for cGVHD. Nonrelapse mortality was 44% after a median follow-up of 7.8 years. The probability of DSS at 10 years after diagnosis of cGVHD (DSS1) and after PTF (DSS2) was 51% (95% confidence interval [CI] = 39%, 60%) and 38% (95% CI = 28%, 49%), respectively. According to multivariate analysis, extensive skin involvement (ESI) more than 50% of body surface area; hazard ratio (HR) of 7.0 (95% CI = 3.6-13.4), thrombocytopenia (TP) (< 100 000/μL; HR, 3.6; 95% CI = 1.9-6.8), and progressive-type onset (PTO) (HR, 1.7; 95% CI = 0.9-3.0) significantly influenced DSS1. These 3 factors and Karnofsky Performance Score of less than 50% at PTF were significant predictors for DSS2. The DSS1 at 10 years for patients with prognostic factor score (PFS) at diagnosis of 0 (none), less than 2 (ESI only or TP and/or PTO), 2 to 3.5 (ESI plus either TP or PTO), and more than 3.5 (all 3 factors) was 82%, 68%, 34%, and 3% (P = .05, < .001, < .001), respectively. The DSS2 at 5 years for patients with PFS at PTF of 0, 2 or less, 2 to 3.5, and more than 3.5 were 91%, 71%, 22%, and 4% (P = .2, .005, and < .001), respectively. It was concluded that these prognostic models might be useful in grouping the patients with similar outcome.

scholarly journals Acute and chronic graft versus host disease after hematopoietic stem cell transplant

JBMTCT ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 53-66
Author(s):  
Vaneuza A. M. Funke ◽  
Maria Claudia Rodrigues Moreira ◽  
Afonso Celso Vigorito
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell ◽  
Graft Versus Host Disease ◽  
Acute Gvhd ◽  
Chronic Gvhd ◽  
Cell Transplant ◽  
Primary Therapy ◽  
Hematopoietic Stem ◽  
Host Disease ◽  
Graft Versus Host

Graft versus host disease is one of the main complications of Hematopoietic stem cell, in­volving about 50% to 80% of the patients. Acute GVHD clinical manifestations and therapy is discussed, as well as new NIH criteria for the diagnosis and classification of chronic GVHD. Therapy for both refractory chronic and acute GVHD is an important field of discussion once there is no superiority for the majority of the agents after primary therapy has failed. Hence, this review is meant to be a useful tool of consultation for clinicians who are dealing with this complex complication.

scholarly journals Successful and Safe Treatment of Intestinal Graft-Versus-Host Disease (GvHD) with Pooled-Donor Full Ecosystem Microbiota Biotherapeutics

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 1993-1993
Author(s):  
Florent Malard ◽  
Faezeh Legrand ◽  
Jérôme Cornillon ◽  
Amandine Le Bourgeois ◽  
Jean-Baptiste Mear ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Graft Versus Host Disease ◽  
Hematopoietic Stem ◽  
Host Disease ◽  
Graft Versus Host ◽  
Steroid Dependent ◽  
Gi Symptoms ◽  
Microbiota Diversity ◽  
Steroid Refractory

Introduction Intestinal Graft-versus-Host Disease (GvHD), following allogeneic Hematopoietic Stem Cell Transplantation (allo-HSCT), comes with a high mortality rate and a reduced life-expectancy. In this context, failure to respond to steroid therapy is associated with an absence of further therapeutic options, thereby representing an unmet medical need. A marked reduction in gut microbiota diversity leading to loss of functions was strongly associated with reduced overall survival in GvHD, while a high gut microbiota diversity appears to be protective. Aiming at restoring microbiome functions, Fecal Microbiota Transfer proved to be a promising treatment modality in this challenging clinical situation, with recent studies reporting favorable results in steroid refractory-acute GVHD (SR-aGvHD) patients. Here we report on the use of "MaaT013", a standardized, pooled-donor, high-richness microbiota biotherapeutic, used to treat 8 patients with intestinal-predominant aGvHD. Patients and methods Eight allo-HSCT recipients with steroid-dependent or steroid-refractory gastrointestinal GvHD (classical aGVHD n=3, late-onset aGVHD n=2; aGvHD with overlap syndrome n=3) were treated with the MaaT013 biotherapeutic as part of a compassionate use program. These patients had previously received and failed 1 to 5 lines (median 2.5) of GvHD systemic treatments. MaaT013 microbiota biotherapeutics were provided as a pharmaceutical preparation to hospitals by the developer, "MaaT Pharma". Each patient received 1 to 3 doses (median: 3; total doses administered: 21) of MaaT013, a 150 mL bag, by enema (n=7) or nasogastric tube (n=1). GvHD response was evaluated 7 days after each administration and 28 days after the first dose. Prepared under Good Manufacturing Practices, MaaT013 biotherapeutics are characterized by a highly consistent richness of 455 +/- 3% Operational Taxonomic Units (OTUs) and an Inverse Simpson index greater than 20. Batch release specifications are based on potency (viability), identity (diversity), and purity (microbiological safety testing following regulatory guidelines and proportion of proinflammatory species), ensuring the desired consistency between batches. Results We observed 6/8 positive responses at D28 after first dosing, including 3 Complete Responses (CR), one Very Good Partial Response (VGPR), and 2 Partial Responses (PR). Considering the best GI response achieved, all (8/8) patients experienced at least a PR, with 3 CRs, 2 VGPRs and 3 PRs. The 3 patients with CR were still alive at last follow-up (60 to 192 days after last dosing; median: 115 days) and were able to taper and stop steroids and immunosuppressants without relapse of GI symptoms. Of note, among these 3 patients, mild mouth chronic GvHD symptoms persisted in one patient, and relapse of hematologic malignancy was observed in another patient. Among the 8 treated patients, 5 were still alive at last follow-up (60 to 232 days after last dosing; median: 125 days). The safety of the MaaT013 microbiota biotherapeutic was satisfactory in all patients. One patient developed a possibly related sepsis one day after the third MaaT013 administration. In the latter case, no pathogen was identified in blood cultures, and the patient recovered after a course of antibiotics. Conclusions We herein report for the first time the treatment of 8 patients with steroid-dependent or steroid-refractory intestinal aGvHD using a full ecosystem, standardized, pooled-donor, high-richness biotherapeutic. Overall, 3/8 patients attained a complete response following treatment with the off-the-shelf MaaT013 product, shown to be safe and effective in these immunocompromised patients with severe conditions, warranting further exploration of the full ecosystem microbiota restoration approach. Disclosures Malard: Sanofi: Honoraria; JAZZ pharmaceutical: Honoraria; Astellas: Honoraria; Therakos/Mallinckrodt: Honoraria; Keocyte: Honoraria; Janssen: Honoraria. Plantamura:MaaT Pharma: Employment. Carter:MaaT Pharma: Employment. Chevallier:Jazz Pharmaceuticals: Honoraria; Incyte: Consultancy, Honoraria; Daiichi Sankyo: Honoraria. Blaise:Pierre Fabre medicaments: Honoraria; Molmed: Consultancy, Honoraria; Jazz Pharmaceuticals: Honoraria; Sanofi: Honoraria. Mohty:Jazz Pharmaceuticals: Honoraria, Research Funding.

scholarly journals Rapid Engraftment Without Significant Graft-Versus-Host Disease After Allogeneic Transplantation of CD34+ Selected Cells From Peripheral Blood

Blood ◽  
1997 ◽  
Vol 89 (11) ◽  
pp. 3967-3973 ◽  
Author(s):  
Alvaro Urbano-Ispizua ◽  
Ciril Rozman ◽  
Carmen Martı́nez ◽  
Pedro Marı́n ◽  
Javier Briones ◽  
...  
Keyword(s):  
Progenitor Cells ◽  
Graft Versus Host Disease ◽  
Peripheral Blood ◽  
Allogeneic Transplantation ◽  
Median Number ◽  
Refractory Anemia ◽  
Host Disease ◽  
Graft Versus Host ◽  
Cd34 Cells

Abstract We have prospectively evaluated the feasibility and results of the biotin-avidin immunoadsorption method (Ceprate SC system) for a phase I/II study of T-cell depletion of granulocyte colony-stimulating factor (G-CSF ) mobilized peripheral blood progenitor cells (PBPC) for allogeneic transplantation. Twenty consecutive patients, median age, 40 years (21 to 54) and diagnoses of chronic myeloid leukemia in chronic phase (n = 5), acute myeloblastic leukemia (n = 7), acute lymphoblastic leukemia (n = 2), chronic myelomonocytic leukemia (n = 1), refractory anemia with excess of blasts in transformation (n = 3), histiocytosis X (n = 1), and chronic lymphocytic leukemia (n = 1), were conditioned with cyclophosphamide (120 mg/kg) and total body irradiation (13 Gy; 4 fractions). HLA identical sibling donors received G-CSF at 10 μg/kg/d subcutaneously (SC); on days 5 and 6 (19 cases) and days 5 to 8 (1 case) donors underwent 10 L leukapheresis. PBPC were purified by positive selection of CD34+ cells using immunoadsorption biotin-avidin method (Ceprate SC) and were infused in the patients as the sole source of progenitor cells. No growth factors were administered posttransplant. The median recovery of CD34+ cells after the procedure was of 65%. The median number of CD34+ cells infused in the patients was 2.9 (range, 1.5 to 8.6) × 106/kg. The median number of CD3+ cells administered was 0.42 × 106/kg (range, 0.1 to 2). All patients engrafted. Neutrophil counts <500 and <1,000/μL were achieved at a median of 14 days (range, 10 to 18) and 15 days (range, 11 to 27), respectively. Likewise, platelet counts <20,000 and <50,000/μL were observed at a median of 10 days (range, 6 to 23) and 17 days (range, 12 to 130), respectively. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporine plus methylprednisolone. No patient developed either grade II to IV acute or extensive chronic GVHD. After a median follow-up of 7.5 months (range, 2 to 22) three patients have relapsed, and one of them is again in hematologic and cytogenetic remission after infusion of the donor lymphocytes. Two patients died in remission: one on day +109 of pulmonary aspergillosis and the other on day +251 of metastasic relapse of a previous breast cancer. Sixteen of the 20 patients are alive in remission after a median follow-up of 7.5 months (range, 2 to 22). In conclusion, despite the small number of patients and limited follow-up, it appears that this method allows a high CD34+ cell recovery from G-CSF mobilized PBPC and is associated with rapid engraftment without significant GVHD, and with low transplant related mortality.

scholarly journals Methotrexate and cyclosporine versus cyclosporine alone for prophylaxis of graft-versus-host disease in patients given HLA-identical marrow grafts for leukemia: long-term follow-up of a controlled trial

Blood ◽  
1989 ◽  
Vol 73 (6) ◽  
pp. 1729-1734 ◽  
Author(s):  
R Storb ◽  
HJ Deeg ◽  
M Pepe ◽  
F Appelbaum ◽  
C Anasetti ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Controlled Trial ◽  
Chronic Gvhd ◽  
Host Disease ◽  
Graft Versus Host ◽  
Myelocytic Leukemia ◽  
Long Term Follow Up ◽  
Early Survival ◽  
Marrow Infusion

Abstract Patients with acute nonlymphoblastic leukemia (ANL) in first remission (n = 38) or chronic myelocytic leukemia (CML) (n = 55) were given cyclophosphamide and total body irradiation, followed by marrow infusion from HLA-identical siblings. To evaluate postgrafting prophylaxis for acute graft-versus-host disease (GVHD), the patients were randomized to receive either methotrexate and cyclosporine (n = 43) or cyclosporine alone (n = 50). Methotrexate/cyclosporine significantly reduced the incidence and severity of acute GVHD, and improved early survival. This report updates the results with a 3.0 to 4.5 year follow-up. Methotrexate/cyclosporine did not interfere with sustained hematopoietic engraftment, although granulocyte recovery to 1,000/microL was delayed by five days on the average. The incidence of chronic GVHD was identical in the two groups (26% v 24%). Disease-free 3-year survival was slightly better in the methotrexate/cyclosporine group (65% v 54%), but this benefit was restricted to patients with CML (73% v 54%), while no improvement was seen in patients with ANL (41% v 41%). In contrast to patients with CML (relapse rates 8% v 9%), the early survival benefit among patients with ANL given methotrexate/cyclosporine was offset by an increase in leukemic relapses (29% v 16%).

scholarly journals The MAGIC algorithm probability is a validated response biomarker of treatment of acute graft-versus-host disease

2019 ◽  
Vol 3 (23) ◽  
pp. 4034-4042 ◽  
Author(s):  
Hrishikesh K. Srinagesh ◽  
Umut Özbek ◽  
Urvi Kapoor ◽  
Francis Ayuk ◽  
Mina Aziz ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Risk Groups ◽  
Serum Biomarkers ◽  
Dynamic Changes ◽  
Host Disease ◽  
Graft Versus Host ◽  
Key Points ◽  
Response Biomarker ◽  
Acute Graft

Key Points The MAGIC algorithm probability, computed from 2 serum biomarkers, predicts mortality in all GVHD grades after 4 weeks of treatment. Dynamic changes in the MAGIC algorithm probability occur within all biomarker risk groups and can guide therapy.

scholarly journals Methotrexate for the Treatment of Graft-versus-Host Disease after Allogeneic Hematopoietic Stem Cell Transplantation

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Amr Nassar ◽  
Ghada Elgohary ◽  
Tusneem Elhassan ◽  
Zubeir Nurgat ◽  
Said Y. Mohamed ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Chronic Gvhd ◽  
Corticosteroid Treatment ◽  
Complete Response ◽  
Primary Treatment ◽  
Lower Grade ◽  
Hematopoietic Stem ◽  
Host Disease ◽  
Graft Versus Host ◽  
Pooled Data

Glucocorticoids have been the primary treatment of graft-versus-host disease (GVHD) over the past decade. Complete responses to steroid therapy are usually expected in almost one-third of aGVHD cases and partial response is anticipated in another one-third of patients. However, for those patients not responding to corticosteroid treatment, there is no standard second-line therapy for acute or chronic GVHD. Methotrexate (MTX) for treatment of steroid refractory GVHD has been evaluated in a number of studies. Results from peer-reviewed original articles were identified and the pooled data analyzed. Despite several limitations in data collection and analysis, weekly administration of methotrexate at a median dose of 7.5 mg/m2seems to be safe with minimal toxicities in the context of both aGVHD and cGVHD treatments. The observed overall response (OR) in patients with aGVHD to MTX treatment in the published studies was 69.9%, with complete response (CR) in 59.2% and PR in 10.6%. In cGVHD the OR was 77.6%, with CR reported in 49.6% and PR in 28% of patients. Predictors of better responses were lower grade GVHD, cutaneous involvement, and isolated organ involvement. MTX as a steroid sparing agent might reduce long-term complications and improve the quality of life of GVHD affected individuals.

Mesenchymal Stem Cells for Treatment of Refractory Chronic Graft-Versus-Host Disease.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 4968-4968
Author(s):  
Weng Jianyu ◽  
Xin Du ◽  
Xiang Peng ◽  
Zhang Xiumin ◽  
Suijin Wu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Graft Versus Host Disease ◽  
Acute Gvhd ◽  
Chronic Gvhd ◽  
Immunosuppressive Agents ◽  
Steroid Resistant ◽  
Host Disease ◽  
Graft Versus Host

Abstract Refractory extensive chronic graft-versus-host disease (GVHD) after allogeneic stem-cell transplantation (SCT) is associated with high mortality [Margolis J., SeminOncol 2000].However, conventional therapies including steroids are often unsuccessful in those patients with multiorgan involvement and are associated with significant therapy-related complications and poorly life quality. Mesenchymal stem cells (MSCs) have immunomodulatory effects [Tse WT et al., Transplantation 2003; Spees JI et al.,Proc Natl Acad Sci USA 2003]. Recently MSCs have been given intravenously to treat seven steroid resistant acute GVHD patients and one patient with chronic GVHD. MSCs effects in chronic GVHD is rarely known, although this successfully experience suggests that MSCs have been well tolerated and had a powerful immunosuppressive effects on acute GVHD. [Katarina Le Blanc et al., Lancet 2004; Olle Ringden., Transplantation 2006 ]. Here, we present our experience of using MSCs for treatment of Thirteen patients with refractory chronic GVHD. Between May 2005 and March 2007, thirteen patients (8 male, 5female) with hematological malignancies with a median age of 26(range:15 to 40) years who had received peripheral stem cells from sibling donors. All patients developed steroid resistant or extensive chronic GVHD, with progressive involvement of the skin(13), liver(10), oral mucosa(12),ocular glands(12), and thrombocytopenia (1) when the immunosuppressive agents were taped after five to twenty-four months. The MSC dose was median 1.0 ×106 cells/kg body weight of the recipient. In all, thirteen patients had at least received one dose, seven patients received more than two doses. MSC donors were in seven cases HLA-identical siblings, six unrelated mismatched donors. No side-effects were seen after MSCs infusions. All patients have responded after follow-up of the median time 15 months. One patient with moderate cGVHD had a complete responses, and discontinued all of the immunosuppressive agents without relapse more than 18.4 months after MSC infusion. Three moderate and two patients with severe chronic GVHD improved to mild degree, and six severe turned to moderate degree. Complete resolution was seen in gut(2/3), liver(5/10), skin(5/13), oral(6/12) and eye(2/12). One patient responded in skin, liver, oral mucose and eye, but developed in lung (bronchiolitis obliterans, BO) score of 2 which are considered severe chronic GVHD. Mean follow-up periods was 27m (rang: 14 to48m), Leukemia free survival(LFS)rate were 85%(11/13), and the overall survival (OS)rate were 92.3%(12/13). Our experience suggests that MSC infusion is a safe and effective adjunct therapy for refractory extensive chronic GVHD with resistance to conventional therapy. But more prospective, controlled studies with MSCs for treatment of GVHD should be performanced to evaluate this new treatment exactly.

Malignant Neoplasms in Long-Term Survivors of Bone Marrow Transplantation – Follow up

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 453-453 ◽  
Author(s):  
Bernhard Heilmeier ◽  
Nadine Stowasser ◽  
Gerard Socie ◽  
Maria Teresa van Lint ◽  
Andre Tichelli ◽  
...  
Keyword(s):  
Risk Factors ◽  
Graft Versus Host Disease ◽  
Cumulative Incidence ◽  
Marrow Transplantation ◽  
Malignant Neoplasms ◽  
Host Disease ◽  
Graft Versus Host ◽  
Long Term Survivors

Abstract Patients who receive allogeneic hematopoietic stem cell transplants have an increased risk for new malignancies because of several risk factors, including conditioning with radiation and chemotherapy, immune modulation, and malignant primary disease. The frequency of and risk factors for malignant neoplasm in long-term survivors should be assessed. A former analysis of the EBMT observing the 1036 patients of this study with a median observation time of 10.7 years showed older patient age and immunosuppressive treatment of chronic graft-versus-host disease as main risk factors for secondary malignancies. We have tried to determine the cumulative incidence and define potential risk factors for new malignancies in long-term survivors after marrow transplantation in a retrospective multi center follow-up study. This study of the Late Effects Working Party was performed with 45 transplantation centers cooperating in the European Cooperative Group for Blood and Marrow Transplantation. 1036 consecutive patients who underwent transplantation for leukemia, lymphoma, inborn diseases of the hematopoietic and immune systems, or severe aplastic anemia. Patients were transplanted before December 1985 and had survived more than 5 years. Reports on malignant neoplasms were evaluated, and the cumulative incidence was compared to that in the matched general population. Patient age and sex, primary disease and disease stage at transplantation, histocompatibility of the donor, conditioning regimen, type of prophylaxis of graft-versus-host disease, development of acute and chronic graft-versus-host disease, and treatment of chronic graft-versus-host disease were evaluated as variables. Univariate analysis was performed using the log rank test for the time until malignancy occurred; significant risk factors were studied in multivariate analysis (Cox regression). Median follow-up since transplantation was 17.9 years (range, 5 to 32.3 years). Malignant neoplasms were seen in 114 patients; the cumulative incidence was 4.0% at 10 years, 8.5% at 15 years, 14.0% at 20 years and 21.0% at 25 years. The rate of new malignant disease was 6-fold higher than that in an age-matched control population (P &lt;0.001). The most frequent malignant diseases were neoplasms of the skin (23 patients), breast (16 patients), thyroid gland (13 patients), oral cavity (12 patients), uterus including cervix (7 patients), and glial tissue (3 patients). Median ages of patients and their donors at the time of transplantation were 21 years for both groups (range 0.5 – 52 years). Follow up data were avaible in 636 patients, 100 patients were deceased at the time of prior analysis, 300 patients were lost to follow up. Compared with the analysis of the same cohort of patients 10 years ago, the most striking increase in secondary malignancies was seen in breast cancer (4-fold), thyroid cancer (3-fold) and neoplasms of the skin and oral cavity (2-fold). In multivariate analysis patient age above 30 years (hazard ratio 1.8, 95% CI 1.2 – 2.6; p=0.006), radiotherapy for conditioning (hr 2.3, CI 1.2 – 4.3; p=0.01) and immunosuppression (hr 1.5, CI 1.0 – 2.2; p=0.05) (in particular cyclosporine or methotrexate) were risk factors for new malignancies after hematopoietic stem cell transplantation. In conclusion longer followup shows the continuous increase of the cumulative incidence of secondary neoplasms in long-term survivors. With longer follow-up a shift in the risk factors occurs: Until 10–15 years after allogeneic transplantation immunosuppression is the major risk factor for new malignancies, whereas more than 15 years after transplantation radiotherapy becomes the dominant risk factor.

Lenalidomide Maintenance Therapy After Toxicity-Reduced Myeloablative Allograft As Salvage Therapy for Efractory/Relapsed Myeloma Patients

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 3024-3024
Author(s):  
Nicolaus Kröger ◽  
Evgeny Klyuchnikov ◽  
Thomas Stübig ◽  
Christine Wolschke ◽  
Francis Ayuk ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Overall Survival ◽  
Maintenance Therapy ◽  
Graft Versus Host Disease ◽  
Cumulative Incidence ◽  
Myeloablative Conditioning ◽  
Host Disease ◽  
Graft Versus Host ◽  
Grade Iii

Abstract Abstract 3024FN2 Reduced-intensity conditioning (RIC) regimen followed by allogeneic stem cell transplantation (SCT) has become a reasonable treatment option for patients with multiple myeloma who are refractory or have relapse to an autograft. However, in comparison to standard myeloablative conditioning RIC resulted in higher risk of relapse. Maintenance therapy after autologous transplantation has shown to improve survival while after allogeneic SCT data are lacking so far. We here report the results of myeloablative toxicity-reduced allograft consisting of intravenous busulfan (12.2 mg/kg) and cyclophosphamide (120 mg/kg) followed by lenalidomide maintenance in 33 patients with multiple myeloma who relapsed to an autograft. A total of 32 patients had received one (n=16), two (n=15), or even three (n=1) autografts, and 1 patient was refractory to 2 induction therapies and failed to collect autologous stem cells. The median duration of remission after the autograft was 12 months. The primary endpoint of the study was non-relapse mortality at 1 year and secondary objectives were evaluation of response, incidence of acute and chronic graft-versus-host disease as well as progression and overall survival. To prevent graft-versus-host disease antithymocyte globulin (ATG Fresenius®) was given at a median dose of 20 mg/kg on day -3, -2, and -1. Lenalidomide was started earliest at day 120 after transplantation if there were no signs of infection or graft-versus-host disease. The median time between last autograft and allogeneic transplantation was 20 months. 19 patients were treated with fully HLA-matched unrelated donor, 8 patients had a mismatch donor, and 6 patients were transplanted from an HLA-identical sibling. 2 patients died of treatment-related complications resulting in a cumulative incidence of non-relapse mortality at 1 year of 6% (95% CI: 0–14%). After transplantation 27% developed grade II graft-versus-host disease, and severe grade III graft-versus-host disease was seen in 6% of the patients. Complete remission was noted in 46% of the patients, partial remission was seen in 48% and stable disease in 3%. The median interval between allogeneic transplant and start of lenalidomide was 168 days. The median starting dose was 5 mg (range 5–15 mg) without dexamethasone for 21 day followed by 1 week rest. 9 patients did not receive lenalidomide maintenance due to ongoing graft-versus-host disease, cytopenia or patient's wish. The median number of lenalidomide cycles was 6 (range 1–30). During follow-up 13 patients discontinued lenalidomide treatment due to progressive disease (n=6), GvHD (n=3), thrombocytopenia (n=2), or fatigue (n=2). In 10 patients lenalidomide dose could be increased to 10 or 15 mg, respectively. The major toxicities of lenalidomide were acute graft-versus-host disease grade I – III (21%), viral reactivation (12%), thrombocytopenia grade III-IV (12%), neutropenia grade III-IV (6%), peripheral neuropathy grade I-II (12%), or other infectious complications (6%). During follow-up 9 patients experienced relapse resulting in a cumulative incidence of relapse at 3 years of 42% (95% CI: 18–66%). The 3 year estimated probability of progression-free and overall survival was 52 % (95% CI: 28–76%) and 79 % (95% CI: 63–95%), respectively. In the current trial neither the deletion 13q14 nor the use of mismatch donor nor the chemosensitivity prior allogeneic SCT could be identified as risk factor for survival. This study showed that toxicity-reduced myeloablative conditioning regimen is feasible and highly effective in relapsed patients with multiple myeloma resulting in an acceptable treatment-related mortality. Lenalidomide as maintenance therapy is feasible early after transplantation but toxicity especially the induction of graft-versus-host disease should be considered. Disclosures: Kröger: Celgene: Research Funding. Kropff:Janssen-Cilag: Consultancy, Honoraria; Celgene: Consultancy, Honoraria.

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