Efficacy, Safety and Tolerability of Biotene Mouthwash Versus Aloe Vera Juice and Active Manuka Honey for Prophylaxis of Oral Mucositis Following Chemoradiotheray

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 4703-4703
Author(s):  
Kian Meng Chang ◽  
Tee Chuan Ong ◽  
Sen Mui Tan ◽  
Swee Kim Tan
Keyword(s):  
Oral Mucositis ◽  
Secondary Infection ◽  
Interleukin 1 ◽  
Conditioning Regimen ◽  
Aloe Vera ◽  
Nutrition Support ◽  
High Dose ◽  
Manuka Honey ◽  
Necrosis Factor Alpha ◽  
Hematopoietic Stem

Abstract Background: Oral mucositis (OM) is a common and debilitating complication following high dose Methotrexate (MTX) as well as conditioning regimen for hematopoietic stem cell transplantation (HSCT). The mucosal injury varies in severity, ranging from mild inflammation to full thickness mucosal ulceration extending into submucosal layer. In the setting of damaged mucosal layer and neutropenia, secondary infection may happen which can lead to systemic sepsis. The vicious cycle of inflammation and secondary sepsis will trigger greater release of cytokines, such as tumor necrosis factor alpha and interleukin 1 beta that further worsen the mucosal insult. Patients who develop OM not only suffer from pain and poor quality of life but also infections which can be life-threatening. Obviously, OM causes increased duration of hospital stay, use of parenteral narcotics and nutrition support with increased treatment costs. Currently, there are no definitive approved methods/agents except Palifermin (Keratinocyte growth factor, KGF) that can prevent and/or reduce the severity, incidence and duration of OM. However, the use of Palifermin in our centre is constrained by its cost. Therefore, we explored the feasibility of locally available cheaper agents such as Biotene mouthwash, and the Aloe Vera juice and active Manuka Honey. Biotene mouthwash is alcohol free and contains antibacterial enzymes that reduce bacterial growth, oral irritation and promote gingival health. Aloe barbodensis inner leaf juice and honey is claimed to contain nutrients, minerals and vitamins. Patients and Methods: A total of 76 patients were enrolled between September 2007 and February 2008. Application of Biotene mouthwash was done every 6 hourly whereas Aloe Vera juice was consumed twice a day. All HSCT patients received oral Ciprofloxacin, Acyclovir and Fluconazole until Day +21 as prophylaxis. Patients receiving high dose MTX were hyperhydrated with urinary alkalinization. The degree of mucositis was assessed daily by nurses using the WHO grading of mucositis. Physicians were allowed to prescribe intravenous narcotics, analgesics and TPN and ICU care as required. Patients were requested to filll a self reported OM daily questionnaire based on usual analogue scale. Results: A total of 46 patients received Biotene mouthwash and 30 patients received Aloe Vera juice. 29/46 (63%) vs. 13/30 (43.3%) received high dose MTX in the Biotene arm and Aloe Vera juice arm, respectively, whereas 17/46 (37%) vs. 17/30 (56.7%) received HSCT. The prevalence of grade 0, 1–2, 3–4 mucositis in patients received Biotene mouth wash and Aloe Vera juice are 17.4%, 52.2%, 30.4% and 26.7%, 56.7%, 16.7% respectively (Chi Square for trend, p = 0.145). Requirement for intravenous opioid was 0/46(0%) vs. 4/30(13.3), and TPN requirement was 0/46(0%) vs. 2/30(6.7). None of the patients required ICU management. Conclusions: Biotene mouthwash is similar to Aloe Vera juice in reducing/preventing the severity of mucositis in patient underwent MTX or conditioning regimen for HSCT. Both are safe and well tolerated. The can be considered as useful local measures in the prophylaxis of OM following chemoradiotheray.

Final analysis of the phase II, randomized, double-blind, placebo-controlled trial of single dose velafermin (CG53135–05) for the prevention of oral mucositis

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 6537-6537 ◽  
Author(s):  
M. W. Schuster ◽  
E. Anaissie ◽  
D. Hurd ◽  
W. Bensinger ◽  
J. Mason ◽  
...  
Keyword(s):  
Stem Cell ◽  
Single Dose ◽  
Phase Ii ◽  
Oral Mucositis ◽  
Conditioning Regimen ◽  
Study Drug ◽  
High Dose ◽  
Cell Transplant ◽  
Hematopoietic Stem ◽  
Grade 3

6537 Background: Oral mucositis (OM) is a commonly occurring side effect of high-dose chemotherapy (HDCT) in patients (pts) undergoing autologous hematopoietic stem cell transplant (AHSCT). Velafermin, recombinant human fibroblast growth factor 20, is being investigated for prevention of OM. Velafermin promotes epithelial and mesenchymal cell proliferation in vitro and in vivo. Methods: A phase II trial was conducted to evaluate safety, efficacy, and pharmacokinetics (PK) of velafermin. Inclusion criteria: pts undergoing HDCT and AHSCT with or without total body irradiation (TBI) were enrolled. Velafermin at 0.03, 0.1, or 0.2 mg/kg or placebo was administered as single dose IV at 24h after stem cell infusion. Safety and PK were assessed. Pts were scored daily for presence of OM using the WHO grading scale. The primary endpoint was the incidence of Grade 3/4 OM. Results: A total of 212 pts were randomized to either placebo (n=51) or velafermin at 0.03 (n=50), 0.1 (n=56), or 0.2 (n=55) mg/kg (intent-to-treat or ITT sample). 206 pts (97%) received study drug or placebo. Pt diagnoses included multiple myeloma (57%), non-Hodgkin’s (25%), or Hodgkin’s (11%) lymphoma and 13 pts (6%) received TBI as part of the conditioning regimen. The Grade 3/4 OM incidence rates (%) in the placebo or velafermin arms (0.03, 0.1, and 0.2 mg/kg) were 37, 18, 38, and 36, respectively. The primary analysis of dose dependent reduction of severe OM was not statistically significant (p = 0.549). However, velafermin at 0.03 mg/kg did reduce the incidence of Grade 3/4 OM when compared to placebo alone (p = 0.031). Duration of Grade 3/4 OM was reduced significantly in the 0.03 mg/kg when every pt was evaluated or in the 0.1 mg/kg dose when only pts with Grade 3/4 OM were included in the analysis (p = 0.037 and 0.014, respectively). A total of 5 related SAEs (3 in 0.1 mg/kg, 1 in 0.03 mg/kg, and 1 in placebo cohort) occurred within 4hr of study drug infusion. All symptoms were transient. Conclusion: Single dose velafermin at 0.03mg/kg is may be active in reducing CT induced severe OM in AHSCT pts. Safety profile supports continuing study to define the optimal dose for prevention of severe OM. A new Phase II study will be conducted to confirm velafermin activity at 0.03mg/kg dose. [Table: see text]

scholarly journals Oral mucositis in patients with acute myeloid leukemia treated with allogeneic hematopoietic stem cell transplantation in relation to the conditioning used prior to transplantation

2021 ◽  
Author(s):  
Aleksandra Wysocka-Słowik ◽  
Lidia Gil ◽  
Zuzanna Ślebioda ◽  
Agnieszka Kręgielczak ◽  
Barbara Dorocka-Bobkowska
Keyword(s):  
Acute Myeloid Leukemia ◽  
Cell Transplantation ◽  
Oral Mucositis ◽  
Myeloid Leukemia ◽  
Hematopoietic Cell Transplantation ◽  
Conditioning Regimen ◽  
World Health ◽  
Post Transplantation ◽  
Hematopoietic Stem ◽  
Acute Myeloid

AbstractThis study was designed to investigate the frequency and severity of oral mucositis in patients with acute myeloid leukemia after allogeneic hematopoietic cell transplantation, in relation to the type of conditioning used. Eighty patients diagnosed with acute myeloid leukemia were assigned to two groups based on the conditioning regimen used before transplantation. The intensity of oral inflammatory lesions induced by chemotherapy (oral mucositis) was evaluated according to a 5-point scale recommended by World Health Organization. Oral mucosa was investigated in all patients before the transplantation and during two subsequent stages of the post-transplantation procedure in relation to the conditioning regimen used. Mucositis in the oral cavity was observed in the majority of patients (66%) in the first week after transplantation, whereas the largest percentage of patients suffering oral lesions (74%) occurred in the second week after transplantation. A significantly higher percentage of patients with mucositis was observed in the group which underwent myeloablation therapy (74% of MAC and 50% of RIC patients in the first week; 83% of MAC and 53% of RIC patients in the second examination).The severity of mucositis after transplantation was higher in the MAC patients compared to the RIC patients. The highest mean value of the mucositis index was recorded in the second week in the MAC group (1.59). In AML sufferers receiving allo-HSCT, oral mucositis is a significant complication of the transplantation. This condition is more frequent and more severe in patients after treatment with myeloablation therapy.

scholarly journals Symptom Burden of Busulfan and Melphalan Versus Melphalan Alone for Multiple Myeloma

Blood ◽  
2017 ◽  
Vol 130 (Suppl_1) ◽  
pp. 681-681
Author(s):  
Loretta A. Williams ◽  
Muzaffar H. Qazilbash ◽  
Qiuling Shi ◽  
Qaiser Bashir ◽  
Huei K. Lin ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Muscle Weakness ◽  
Symptom Severity ◽  
Conditioning Regimen ◽  
Symptom Burden ◽  
Phase Iii ◽  
Dry Mouth ◽  
Fixed Dose ◽  
High Dose ◽  
Hematopoietic Stem

Abstract Background: High-dose melphalan 200 mg/m2 (Mel) is the standard for autologous hematopoietic stem cell transplantation (autoHSCT) for multiple myeloma. Retrospective analyses suggested that a combination of busulfan and melphalan (Bu-Mel) may be associated with a longer progression-free survival (PFS). A secondary aim of a randomized, phase III trial that compared the safety and efficacy of Bu-Mel vs Mel was to compare the symptom burden of the two regimens. Symptom burden is the combined impact of disease- and therapy-related symptoms on patient functional ability. Methods: Patients were randomized to Bu-Mel (Bu 130 mg/m2 daily for 4 days, either as a fixed dose or to target an average daily area under the curve of 5000 μmol-min, followed by 2 daily doses of Mel 70 mg/m)2or Mel (Mel 100 mg/m2 daily for 2 days). A subset of patients completed the 20 symptom severity and 6 interference items of MD Anderson Symptom Inventory for Multiple Myeloma (MDASI-MM) prior to the start of the treatment regimen and weekly for 4 weeks post autoHSCT. Symptoms and interference are rated on 0-10 scales (0 = none or no interference, 10 = worst imaginable or complete interference). Differences in individual symptom severity and interference between the two arms were assessed by t-tests and mixed modeling. Results: As previously reported, 204 (Bu-Mel: 104, Mel: 100) were enrolled between October 2011 and March 2017. At last evaluation, 52 (51%) and 49 (49%) patients achieved a CR (p=0.88), and 69 (68%) and 67 (67%) patients achieved a CR+nCR (p=0.88) in Bu-Mel and Mel arms, respectively. Median PFS was 64.7 months and 34.4 months (p=0.013) in Bu-Mel and Mel arms, respectively. There was no difference in OS between the two arms. One hundred sixty-five of the patients (Bu-Mel: 81, Mel: 84) completed at least one MDASI-MM assessment. Median ages at autoHSCT were 57.2 and 57.0 years in Bu-Mel and Mel groups, respectively (p=0.86). At baseline, t-tests showed significantly higher mean severity of constipation (1.80, standard deviation [SD] = 2.87 vs 0.98, SD = 1.94; p=0.036), muscle weakness (2.38, SD=2.49 vs 1.44, SD=1.87; p=0.034), diarrhea (1.45, SD=2.43 vs 0.60, SD=1.10; p=0.005), and global symptom interference (2.96, SD=2.81 vs 1.77, SD=2.00; p=0.003) in the Bu-Mel arm than the Mel arm. The Bu-Mel patients had a significantly higher mean severity of pain (5.67, SD=2.65 vs 3.17, SD=3.07; p=0.0043) and mouth sores (7.35, SD=2.41 vs 1.25, SD=2.22; p <0.0001) than the Mel patients 7 days post autoHSCT. Longitudinal analysis using mixed modeling showed that the Bu-Mel arm had a significantly higher mean severity of pain (ED = 1.102, p=0.003), drowsiness (ED = 0.674, p=0.040), dry mouth (ED = 0.904, p=0.009), constipation (ED = 0.695, p=0.006), muscle weakness (ED = 0.815, p=0.006), mouth sores (ED = 1.683, p <0.0001), rash (ED = 0.362, p=0.019), and interference with physical functions (general activity: ED = 1.015, p=0.010; working: ED=1.229, p=0.006; walking: ED=0.920, p=0.009) than the Mel arm during the 4 weeks following autoHSCT. Conclusions: Patients receiving Bu-Mel vs Mel prior to autoHSCT report some differences in symptom severity, with Bu-Mel patients experiencing more severe sore mouth, pain, and symptom interference with daily functioning. The greater intensity of the double-alkylating agent conditioning regimen of Bu-Mel likely led to these differences. The increased severity of drowsiness, dry mouth, constipation, and muscle weakness may be due to an increased need for opioids to control severe pain and mouth sores. The effect of significant differences in symptom severity and interference at baseline between these two groups, despite randomization, is not clear. However, the longer time to progression of myeloma with the Bu-Mel regimen may offset the greater symptom burden early post autoHSCT. Systematic measurement of symptom burden during clinical trials can provide useful information for clinicians and patients in evaluating the full impact of different treatment regimens and enhance treatment decision making and discussion between clinicians and patients. Disclosures No relevant conflicts of interest to declare.

scholarly journals Possible Protective Effect of Diacerein on Doxorubicin-Induced Nephrotoxicity in Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Marwa M. M. Refaie ◽  
Entesar F. Amin ◽  
Nashwa F. El-Tahawy ◽  
Aly M. Abdelrahman
Keyword(s):  
Protective Effect ◽  
Low Dose ◽  
Caspase 3 ◽  
Interleukin 1 ◽  
Treated Group ◽  
Limiting Factors ◽  
High Dose ◽  
Necrosis Factor Alpha ◽  
Factor Alpha ◽  
Necrosis Factor

Nephrotoxicity is one of the limiting factors for using doxorubicin (DOX). Interleukin 1 has major role in DOX-induced nephrotoxicity, so we investigated the effect of interleukin 1 receptor antagonist diacerein (DIA) on DOX-induced nephrotoxicity. DIA (25 and 50 mg/kg/day) was administered orally to rats for 15 days, in the presence or absence of nephrotoxicity induced by a single intraperitoneal injection of DOX (15 mg/kg) at the 11th day. We measured levels of serum urea, creatinine, renal reduced glutathione (GSH), malondialdehyde (MDA), total nitrites (NOx), catalase, and superoxide dismutase (SOD). In addition, caspase-3, tumor necrosis factor alpha (TNFα), nuclear factor kappa B (NFκB) expressions, and renal histopathology were assessed. Our results showed that DOX-induced nephrotoxicity was ameliorated or reduced by both doses of DIA, but diacerein high dose (DHD) showed more improvement than diacerein low dose (DLD). This protective effect was manifested by significant improvement in all measured parameters compared to DOX treated group by using DHD. DLD showed significant improvement of creatinine, MDA, NOx, GSH, histopathology, and immunohistochemical parameters compared to DOX treated group.

scholarly journals Perspectives on the co-treatment with GnRHa in female patients undergoing hematopoietic stem cell transplantation

2017 ◽  
Vol 6 (8) ◽  
pp. R162-R170 ◽  
Author(s):  
Luminita Nicoleta Cima ◽  
Anca Colita ◽  
Simona Fica
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Hematopoietic Stem Cell ◽  
Randomized Clinical Trials ◽  
Conditioning Regimen ◽  
High Dose ◽  
Hematopoietic Stem ◽  
Gonadal Dysfunction

Outcomes after hematopoietic stem cell transplantation (HSCT) for patients with both malignant and nonmalignant diseases have improved significantly in recent years. However, the endocrine system is highly susceptible to damage by the high-dose chemotherapy and/or irradiation used in the conditioning regimen before HSCT. Ovarian failure and subsequent infertility are frequent complications that long-term HSCT survivors and their partners face with a negative impact on their QoL. Several meta-analyses of randomized clinical trials showed that gonadotropin-releasing hormone agonist (GnRHa) administration in advance of starting standard chemotherapy decreases the risk of gonadal dysfunction and infertility in cancer patients, but GnRHa use for ovarian protection in HSCT patients is not fully determined. In this review, we are discussing the potential preservation of ovarian function and fertility in pubertal girls/premenopausal women who undergo HSCT using GnRHa in parallel with conditioning chemotherapy, focusing on the current data available and making some special remarks regarding the use of GnRHa.

Comparison of conditioning regimen toxicities among autologous stem cell transplantation eligible multiple myeloma patients: High-dose melphalan versus high-dose melphalan and bortezomib

2017 ◽  
Vol 24 (4) ◽  
pp. 281-289 ◽  
Author(s):  
Eda Aypar ◽  
Fikret Vehbi İzzettin ◽  
Şahika Zeynep Akı ◽  
Mesut Sancar ◽  
Zeynep Arzu Yeğin ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Conditioning Regimen ◽  
Standard Of Care ◽  
High Dose ◽  
Hematopoietic Stem ◽  
Duration Of Hospitalization ◽  
High Dose Melphalan

Background Autologous hematopoietic stem cell transplantation (AHSCT) remains the standard of care for younger patients with multiple myeloma (MM). Currently, high-dose melphalan (HDM) is recommended as conditioning regimen before AHSCT. Preclinical data suggest that combining bortezomib and melphalan has synergistic effect against multiple myeloma cells. Bortezomib and HDM (Bor-HDM) combination as conditioning regimen has been investigated by many other investigators. Objective In this retrospective study, we aimed to compare transplant-related toxicities and hematologic recovery of HDM and Bor-HDM conditioning regimens. Method We retrospectively evaluated hematologic recovery and toxicity profile in patients with MM who received AHSCT with either HDM ( n = 114) or Bor-HDM ( n = 53) conditioning regimen. Results Nonhematologic toxicities were comparable between HDM and Bor-HDM conditioning regimen, except mucositis and diarrhea being more frequent in the Bor-HDM group. Neutrophil and platelet engraftment time and duration of hospital stay were significantly shorter for HDM regimen. Conclusions In this retrospective analysis, we observed engraftment kinetics and duration of hospitalization were significantly worse in Bor-HDM conditioning regimen with manageable toxicities. Randomized studies are needed to further compare Bor- HDM regimen to HDM in terms of response rates, toxicities, and transplant-related mortality.

A Experimental Study and Clinical Result of Prophylaxis aGVHD with Humanized Anti-CD25 Monoclonal Antibody in Haploidentical BMT.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1251-1251
Author(s):  
Shu-Quan Ji ◽  
Hui-Ren Chen ◽  
Heng-Xiang Wang ◽  
Hong-Min Yan ◽  
Mei Xue ◽  
...  
Keyword(s):  
Median Time ◽  
Conditioning Regimen ◽  
Control Group ◽  
High Dose ◽  
Marrow Graft ◽  
Hla Antigen ◽  
Hematopoietic Stem ◽  
Gvhd Prophylaxis ◽  
Significant Difference

Abstract Between February 1999 and March 2004, eighty-seven patients with high risk leukemia, age 3–50 (median 19 year), who needed urgent transplant but no HLA-matched or single HLA-antigen mismatched donors available, received unmanipulated HLA haploidentical BMT. The 87 patients were classified as follows AML 27 (CR1 in 7, CR2 in 15 and 5 in relapse), All 38 (CR1 in 4, CR2 in 30 and 4 in relapse) , CML 22 ( 4 in CP, 12 in AP and 6 in BP). All donors were HLA-haploidentical relatives who had at least two major histocompatibility complex antigen mismatched with the recipients. 87 patients underwent haplo-BMT with G-CSF primed BM as stem cells. All patients received a same conditioning regimen including high dose Ara-C, Cyclophosphamide, antithymocyte globulin and total body irradiation to provide both immunosuppression and myeloablation. GVHD prophylaxis consisted of anti-thymocyte globulin, cyclosporin A, methotrexate and mycofenolate mofitel. 72 patients underwent the transplants with the addition of CD25 mAb (Basiliximab Novartis) for GVHD prophylaxis designated as CD25 mAb group. Basiliximab 20mg each by 30min intravenous infusion on 2 hours before transplantion and day 4 after transplantaion. The other 15 patients without Basiliximab for GVHD prophylaxis were as the control group. The two group of patients were comparable in disease status, HLA-disparity and median age of patients. Immunophenotyping, limited dilution assay and colony forming assays were used to measure the effect of Basiliximab on the subsets of lymphocytes, cytotoxic T lymphocyte precursors (CTLp) and hematopoietic cells. All donors were primed with G-CSF at 3-5ug/kg/d for 7 days and the marrow cells were harvested on the eighth day. G-CSF donor priming significantly increased CD34+ and colony forming progenitors in the marrow grafts. More importantly, it significantly reduced lymphocytes and reversed CD4+/CD8+ lymphocyte ratio in the grafts. Both of group who were treated with and without Basiliximab had similar marrow graft contents. All patients established trilineage engraftments.The median time to achieve an absolute neutrophil count 0.5x109/L was 19 days (range, 13 to 24 days). The median time to achieve platelets above 20x109/L was 22 days (range, 16 to 32 days). Between the two groups were no differences in engraftment. Incidence of grades II–IV acute GVHD were 13.9% with GVHD-related deaths 6.9% in Basiliximab group and 33.3% with 20% GVHD-related deaths in control group. There were a significant difference between the anti-CD25 mAb treated Vs non-treated group.Forty-nine patients who survived over 12 months were eligible for the evaluation of cGVHD. 12 patients developed extensive cGVHD, one in control group and eleven in Basiliximab group. 49 were alive in CR during a median follow-up of 30 months (range3–64 months), 42 in Basiliximab group and 7 in control group. Basiliximab significantly decreased alloreactive CTLp by 10–100 fold in limiting dilution assays. It had no effect on hematopoietic stem and progenitor cells as determined by in vitro colony-forming assays.The addition of basiliximab as aGVHD prophylaxis effectively reduced severe lethal aGVHD in haplo-BMT. It is possible to selectively eliminate or reduce the number of alloreactive T cells with anti CD25 antibody, which results in prevention of or a reduction in the severity of GVHD.

Second Allogeneic Hematopoietic Stem-Cell Transplantation Using Fludarabine Treosulfan Conditioning Regimen in Patients Previously Treated with Busulfan-Based Regimens; Myeloablation with Acceptable Toxicity.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 2255-2255 ◽  
Author(s):  
Avichai Shimoni ◽  
Avital Rand ◽  
Noga Shem-Tov ◽  
Izhar Hardan ◽  
Yulia Volchek ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Cumulative Incidence ◽  
Chronic Gvhd ◽  
Conditioning Regimen ◽  
High Dose ◽  
Primary Malignancy ◽  
Hematopoietic Stem ◽  
Reduced Toxicity ◽  
Disease Free

Abstract Abstract 2255 Poster Board II-232 The prognosis of patients (pts) with leukemia who relapse after a prior autologous and or allogeneic hematopoietic stem cell transplantation (SCT) is dismal. A second allogeneic SCT can salvage some of these pts but myeloablative conditioning is associated with high rates of non-relapse mortality (NRM) in this setting and a relatively poor outcome. Reduced intensity conditioning allows reduction of NRM following a second SCT, but may be associated with a high relapse rate, mostly when leukemia is not in remission at the time of SCT. Similarly, allogeneic SCT for pts who develop secondary leukemia after a prior autologous SCT for a primary malignancy is associated with similar risks. The combination of fludarabine and treosulfan (FT) has been previously reported as a dose intensive myeloablative regimen with reduced toxicity and effective anti-leukemia capability, but its merit in second SCT is not defined. We explored a regimen consisting of fludarabine (total 150 mg/m2) and treosulfan (total 30-36 gr/m2) with the addition of ATG to recipients of unrelated or mismatched donor SCT, as a conditioning regimen for a second SCT. The study included 17 pts, 10 male, 7 female, median age 58 years (range, 20-70). Patient diagnosis at second SCT was AML (n=11), MDS (n=3), myelofibrosis (n=2) and CML in accelerated phase (n=1). The first transplant was autologous (n=6) or allogeneic (n=11). Autologous SCT was given for AML (n=3, 1 of them APL) or for a primary malignancy (lymphoma - 2, multiple myeloma -1). Second allogeneic SCT was given for relapse after a prior SCT or for secondary AML/MDS in the 3 pts having autologous SCT for lymphoma and myeloma. The Donor for the second SCT was an HLA-match sibling (n=6) or matched unrelated (n=11). In the 11 pts having a second allogeneic SCT after failure of a first allogeneic SCT the donor was the same donor in 3 transplants and a different donor in 8 transplants. The conditioning regimen for the first SCT contained high-dose intravenous busulfan (12.8 mg/kg) in 9 pts and reduced dose busulfan (6.4-9.6 mg/kg) in 5 pts. The three pts with primary lymphoma and myeloma were given BEAM and high-dose melphalan, respectively. The median time between the first and second SCT was 28 months (range, 3-48 months). Only 4 pts were in remission at the time of second SCT. Six pts were chemo-refractory and 7 pts were transplanted in untreated malignancy. Results: 12 pts engrafted with a median time to ANC > 0.5 × 109/L of 12 days (range, 9-38) and for PLT > 20 × 109 of 15 days (range, 11-44). Five pts died prior to engraftment, 3 of infections, 1 of cerebral hemorrhage and 1 of graft failure. There were no deaths related to organ toxicity (e.g. VOD or pneumonitis) and no late deaths due to NRM. Acute GVHD grade II-IV occurred in 2 pts, cumulative incidence 28%. Chronic GVHD occurred in 4 of 8 evaluable pts, cumulative incidence 57%. There were no deaths attributed to acute or chronic GVHD. The cumulative incidence of NRM was 30% (95%CI, 14-62). Three pts relapsed with a cumulative incidence of 25% (95%CI, 9-69). In all, with a median follow-up of 12 months (range, 1-59 months) the estimated 2-year overall and disease-free survival were both 45% (95CI, 17-73). Best results were achieved in the group of 8 pts having a second SCT form a second allogeneic donor; 5 pts are currently disease-free for a median of 18 months (range, 3-38), despite transplantation in advanced phase; 3 refractory to salvage chemotherapy and one in untreated relapse after the first SCT. The estimated 2 year survival in this group was 60%, a promising outcome in this setting. In conclusion, the fludarabine-treosulfan regimen is feasible for a second allogeneic SCT. NRM especially in the early post-transplant period is substantial, but can be expected in a group of heavily pretreated pts, many with active and refractory leukemia. The regimen has a promising anti-leukemia effect in this setting with a low recurrence rate, especially when using a different donor than in the prior transplant. The FT regimen can be considered a reduced toxicity myeloablative regimen that is feasible in pts given a prior transplant including pts previously given myeloablative doses of busulfan. Disclosures: No relevant conflicts of interest to declare.

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