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Graft-versus-host disease after an outpatient peripheral blood hematopoietic cell transplant using reduced-intensity conditioning: a single-center LATAM experience. Expert Rev Hematol 2024; 17:77-86. [PMID: 38226642 DOI: 10.1080/17474086.2024.2305372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 12/26/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND HLA compatibility predicts allogeneic hematopoietic cell transplant (allo-HCT) and graft-versus-host disease (GvHD) outcomes. There is insufficient information regarding GvHD outcomes for outpatient HLA-identical and haploidentical-HCT employing reduced-intensity conditioning (RIC). RESEARCH DESIGN AND METHODS We compare GvHD outcomes between donor types and report risk factors associated with GvHD. Stem cell source was T-cell replete peripheral blood. GvHD prophylaxis was post-transplant cyclophosphamide (PT-CY), mycophenolic acid, and calcineurin inhibitors for haploidentical (n = 107) and oral cyclosporine (CsA) plus methotrexate i.v. for HLA-identical (n = 89) recipients. RESULTS One hundred and ninety-six HCT transplant patients were included. aGvHD and cGvHD frequency were similar between HCT types. aGvHD severity was comparable, but severe cGvHD was less frequent in the haploidentical group (p = .011). One-hundred-day cumulative incidence (CI) of aGvHD for haploidentical and HLA-identical was 31% and 33% (p = .84); 2-year CI of cGvHD was 32% and 38% (p = .6), respectively. Haploidentical recipients had less steroid-refractory cGvHD (p = .043). Patients with cGvHD had less 2-year relapse (p = .003); both aGvHD and cGvHD conferred higher OS (p = .010 and p = .001), respectively. Male sex was protective for steroid-refractory cGvHD (p = .028). CONCLUSIONS Acute and chronic GvHD rates were comparable between HLA-identical and haploidentical transplant groups. cGvHD severity was lower in the haploidentical group.
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Low-dose rituximab plus high-dose dexamethasone in newly diagnosed immune thrombocytopenia. Eur J Haematol 2023; 110:778-779. [PMID: 36919276 DOI: 10.1111/ejh.13954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/19/2023] [Accepted: 02/21/2023] [Indexed: 03/16/2023]
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Case series: CYP Inhibition and low dose ibrutinib for steroid-refractory chronic graft-versus-host disease. Br J Haematol 2023; 201:573-576. [PMID: 36859646 DOI: 10.1111/bjh.18712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 03/03/2023]
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Performance of serum procalcitonin as a biochemical predictor of death in hematology patients with febrile neutropenia. Blood Cells Mol Dis 2021; 90:102586. [PMID: 34126299 DOI: 10.1016/j.bcmd.2021.102586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Historically, the measurement of serum procalcitonin (PCT) levels in patients with leukopenia has been rejected without sufficient prospective evidence to justify this argument. On the other hand, the accumulated use of broad spectrum antibiotics in these patients and their consequences make the use of PCT attractive in an effort to reduce its use. PATIENTS AND METHODS We conducted a prospective study between 2016 and 2018, recruiting newly diagnosed FN patients, evaluating them with PCT levels during the first 24 h. After this we evaluate them with overall survival throughout the follow-up. RESULTS A total of 81 episodes of FN in 72 patients were included. We report a mortality of 27.2% in our cohort. The mean serum PCT in these patients was 4.01 ng/mL compared to 0.42 ng/mL in the survivors group (p < 0.01). Using ROC curves, we determined a cut-off point to predict septic shock/death at 0.46 ng/mL. Patients with a procalcitonin >0.46 ng/mL had an increased risk of death, with a HR of 4.43, (p = 0.048). CONCLUSION In conclusion, in our trial a single PCT on admission at a cut-off value of 0.46 ng/mL was able to predict the occurrence of septic shock and death in FN patients.
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Outpatient haploidentical hematopoietic stem cell transplant using post-transplant cyclophosphamide and incidence of hemorrhagic cystitis. Hematol Transfus Cell Ther 2020; 44:163-168. [PMID: 33814347 PMCID: PMC9123564 DOI: 10.1016/j.htct.2020.09.149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/03/2020] [Accepted: 09/19/2020] [Indexed: 11/18/2022] Open
Abstract
Introduction Hemorrhagic cystitis (HC) is a common complication of haploidentical hematopoietic stem cell transplantation (haplo-HSCT), characterized by irritative symptoms of the urinary tract and a higher morbidity and mortality rate. The worldwide incidence is reported between 10% and 70%. The use of alkylating agents and BK viral infection are the most frequent etiologies. The aim of this study was to report the HC incidence in an outpatient haplo-HCST program with a reduced intensity-conditioning (RIC) regimen, cataloguing risk factors, complications and final outcomes. Methods The medical database of patients who received a haplo-HSCT between January 2012 and November 2017 was retrospectively analyzed. Demographic variables, general characteristics and HC incidence were included. Results One hundred and eleven patients were included, 30 (27%) of whom developed HC, most of them (70%) being grade II, with a 30-day (7–149) median time of post-transplant HC onset. The BK virus was detected in 71% of the urine samples analyzed. All HC patients responded to treatment, except two (6.6%), who died due to HC complications. Conclusions There was no difference in the HC incidence or severity, compared to that reported when performing haplo-HSCT in hospitalized patients, although the donor-recipient sex mismatch did relate to a higher HC incidence.
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Palliative Care for Patients With Hematologic Malignancies in a Low-Middle Income Country: Prevalence of Symptoms and the Need for Improving Quality of Attention at the End of Life. Am J Hosp Palliat Care 2019; 37:600-605. [PMID: 31714147 DOI: 10.1177/1049909119887951] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Palliative care (PC) for patients with malignant hematological diseases is scarcely documented, particularly in low- and middle-income countries. This study aimed to document PC provided to patients with hematologic malignancies. METHODS Bidirectional study conducted from July 2016 to June 2019 at the hematology and palliative care departments at a reference center in Northeast Mexico for low-income open population uninsured patients. Clinical records and electronic files of patients with malignant hematological diseases of both sexes and all ages attending an academic hematology center were reviewed. Statistical analysis was performed with the SPSS version 22 program. Acute and chronic leukemias, multiple myeloma, Hodgkin lymphoma, non-Hodgkin lymphoma, and others were included. RESULTS Five-hundred ten patients were studied, of which 148 (29%) died. Eighty-one (15.88%) patients including 31 (20.9%) who died received PC. Median age at palliative diagnosis was 42 (2-91) years. The most common symptom was pain (69.7%). The most frequent reason for palliative referral was treatment-refractory disease (39%). During the last week of life, 19 (95%) of 20 patients had blood sampling; 17 (85%) received antibiotics; 16 (80%) had a urinalysis performed; 16 (80%) received analgesia, including paracetamol (11, 35.5%) and buprenorphine (7, 22.6%); 10 (50%) received blood products; 9 (45%) were intubated; and central venous catheters were inserted in 5 (25%) patients. CONCLUSIONS Palliative care was provided to a minority of patients with hematologic malignancies and considerable improvement is required in its timely use and extension.
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Cyclosporine A for the Prevention of Ocular Graft versus Host Disease in Allogeneic Hematopoietic Stem Cell Transplant Recipients Is Safe and Feasible. Acta Haematol 2019; 143:425-431. [PMID: 31505491 DOI: 10.1159/000502405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/27/2019] [Indexed: 01/16/2023]
Abstract
PURPOSE To evaluate the safety and efficacy of ocular cyclosporine in the prevention of the development of ocular graft versus host disease (oGVHD) in patients undergoing allogeneic hematopoietic stem cell transplantation (AHSCT) in comparison with historic data. DESIGN We developed a longitudinal, observational, prospective nonrandomized study. We evaluated the feasibility of prophylactic use of topical cyclosporine A (CsA) to prevent or decrease the incidence of oGVHD and compared this with historic data. METHODS Patients undergoing AHSCT were treated with prophylactic topical CsA for 12 months after engraftment, followed by serial ophthalmic evaluations, including the Schirmer test. RESULTS Twenty patients were included. No serious adverse effects were reported. Poor adherence was documented in 15% of patients. In spite of observing extra-ocular GVHD (acute and chronic GVHD incidence of 50 and 45%, respectively), only 1 in 20 patients developed oGVHD over the 20-month follow-up for the entire cohort. No statistically significant difference was observed in the incidence of oGVHD when compared to a historical cohort. CONCLUSIONS Topical CsA as a prophylactic measure for oGVHD, administered over a period of 1 year after grafting, is safe and feasible and may decrease the incidence of ophthalmic manifestations of GVHD. These findings must be confirmed in a randomized trial.
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The prognostic significance of serum XCL1 concentration in patients with acute lymphoblastic leukemia: a pilot study. Ann Hematol 2017; 96:2015-2024. [PMID: 29027574 DOI: 10.1007/s00277-017-3142-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 09/24/2017] [Indexed: 01/10/2023]
Abstract
There is no information about XCL1 in patients with acute lymphoblastic leukemia (ALL). The objective of this study was to correlate the serum levels of XCL1 and survival in ALL patients. Only ALL patients older than 12 months were considered to participate. Serum XCL1 was measured at diagnosis, end of remission induction, and end of consolidation. Thirty-three ALL patients with median age of 21 years (1-78) were included. Higher XCL1 level (above 50 pg/mL) at ALL diagnosis correlated with higher survival (p = 0.038), whereas XCL1 level at end of induction and consolidation had no significant correlation. Concerning the behavior of serum XCL1 during treatment, higher survival at 5 years was observed in the group with progressively decreased levels of XCL1 (70%) than those with progressively increasing (29%) or no detectable XCL1 (14%). In conclusion, higher serum XCL1 levels at diagnosis and their progressive decline throughout chemotherapy could be correlated with higher survival.
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High frequency of primary refractory disease and low progression-free survival rate of Hodgkin's lymphoma: a decade of experience in a Latin American center. Rev Bras Hematol Hemoter 2017; 39:325-330. [PMID: 29150104 PMCID: PMC5693277 DOI: 10.1016/j.bjhh.2017.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Reports dealing with clinical outcomes of classical Hodgkin's lymphoma in low- to middle-income countries are scarce and response to therapy is poorly documented. This report describes the characteristics and clinical outcomes of patients with classical Hodgkin's lymphoma from a single institution in Latin America. METHOD A retrospective study was conducted over ten years of patients with classical Hodgkin's lymphoma treated at a referral center. Progression-free and overall survival rates were estimated by Kaplan-Meier analysis. The univariate Cox regression model was used to estimate associations between important variables and clinical outcomes. MAIN RESULTS One hundred and twenty-eight patients were analyzed. The mean age was 28.5 years. The five-year progression-free and overall survival were 37.3% and 78.9%, respectively. Of the whole group, 55 (43%) were primary refractory cases. Only 39/83 (47%) patients with advanced disease vs. 34/45 (75.6%) in early stages (p-value=0.002) achieved complete remission. Those with advanced disease had a five-year overall survival of 68.7% vs. 91.8% for early disease (p-value=0.132). Thirty-one patients relapsed (24.2%) and 20 (64.5%) received a transplant. The hazard ratio for progression with bone marrow infiltration was 2.628 (p-value=0.037). For death, an International Prognostic Score ≥4 had a hazard ratio of 3.355 (p-value=0.050) in univariate analysis. Two-thirds of classical Hodgkin's lymphoma patients diagnosed at advanced stages had a low progression-free survival but an overall survival similar to high-income countries. CONCLUSION Patients diagnosed with classical Hodgkin's lymphoma in Northeastern Mexico had a significantly low progression-free survival rate and presented with advanced disease, underscoring the need for earlier diagnosis and improved contemporary therapeutic strategies in these mainly young productive-age Hodgkin's lymphoma patients.
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Age Acts as an Adverse Independent Variable for Survival in Acute Lymphoblastic Leukemia: Data From a Cohort in Northeast Mexico. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2017; 17:590-594. [PMID: 28689002 DOI: 10.1016/j.clml.2017.06.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/10/2017] [Accepted: 06/08/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Survival for acute lymphoblastic leukemia (ALL) decreases with age. Patients across all age groups from a homogeneous ethnic and socioeconomic background were studied to document age effect. MATERIAL AND METHODS Patients diagnosed from 2005 to 2015 at a university hospital in Northeast Mexico were divided into 4 age groups: infants (< 1), children (≥ 1 to < 16), adolescents (≥ 16 to ≤ 20), and adults (> 20 years). Correlation between age at diagnosis and relapse-free (RFS) and overall survival (OS) was investigated. RESULTS A total of 377 patients were included. Five-year RFS and OS for children were 55.6% and 66.9%; for adolescents, 36.0% and 48.3%; for adults, 19.5% and 24.1%, respectively. Differences in RFS and OS between age groups were significant (P < .001, P < .001). In the Cox regression model, all age groups reached statistical significance in univariate analysis of mortality. CONCLUSION Age plays a decisive role in clinical evolution of ALL and strongly influences outcome. Age older than 20 represents a progressive high-risk factor for death.
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Frecuencia de sobrecarga de hierro en pacientes con enfermedades hematológicas. SALUD PUBLICA DE MEXICO 2017; 59:120-122. [DOI: 10.21149/8179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Señor editor: La sobrecarga de hierro (SH) es un problema de salud pública. La hemosiderosis asociada con la transfusión de eritrocitos produce toxicidad, disfunción tisular y susceptibilidad a infecciones; en general son daños mediados a través de la generación de radicales libres…
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Myelodysplasia and acute myeloid leukemia fifteen years after high-dose cyclophosphamide in a child with severe aplastic anemia. Rev Bras Hematol Hemoter 2017; 39:57-59. [PMID: 28270348 PMCID: PMC5339365 DOI: 10.1016/j.bjhh.2016.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 11/05/2022] Open
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Abstract
OBJECTIVE To compare serum ferritin (SF) concentrations and other hematological parameters between patients with preeclampsia (PE) and normal pregnant women of the same gestational period who received supplemental iron during pregnancy. METHODS Prospective, comparative, observational pilot study that included 31 women with PE and 30 healthy pregnant women, at 20 weeks' of gestation. Ferritin, iron and complete blood cell count were compared between groups. RESULTS In comparison with controls, preeclamptic patients had a higher weight, body mass index, and arterial pressure. Serum ferritin and serum iron were higher in patients with PE (median: 36.5 μg/l vs. 20.9 μg/l and 103.9 μg/dl vs. 90.8 μg/dl) with a significant difference (P = 0.019 and P = 0.345). SF values >40 μg/l correlated with PE (r = 0.281; P = 0.032). A platelet count less than 100 × 109/l was higher in the PE group than in the control group (13% vs. 3%, P = 0.354). CONCLUSION Higher SF levels, despite being within normal range, were associated with PE. The incidence of thrombocytopenia was higher in preeclamptic women, however, the remaining hematological parameters were similar in both groups.
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Long-Term Insulin Independence in Type 1 Diabetes Mellitus Using a Simplified Autologous Stem Cell Transplant. J Clin Endocrinol Metab 2016; 101:2141-8. [PMID: 26859103 DOI: 10.1210/jc.2015-2776] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Efforts to find a cure for type 1 diabetes have focused on the removal of the autoimmune pathophysiologic substrate, with the use of immunosuppressive regimens including autologous hematopoietic stem cell transplantation (AHSCT). OBJECTIVE The main objective of determining long-term insulin independence as well as changes in glycated hemoglobin (HbA1c). Secondary outcomes were procedure morbidity and the need for hospital management. DESIGN We enrolled patients with type 1 diabetes between 2012 and 2014. Median follow-up was 34 months (range, 25-56 mo). SETTING Ambulatory care. INTERVENTIONS We decided to carry out an AHSCT protocol using a less toxic and affordable simplified method based on fludarabine in an outpatient setting. PATIENTS Patients were of both sexes, age 8-25 years, with positive levels of anti-GAD antibodies, a C-peptide level >1.0 ng/mL, and <3 months since diagnosis. MAIN OUTCOME MEASURE(S) Insulin independence. RESULTS Sixteen patients were included. Overall response was 81% with seven patients achieving insulin independence (44%); six were partial responders (37%) whereas three were nonresponders (19%). The HbA1c level showed a mean decrease of -2.3% at 6 months in the Insulin Independence group. Median age was 12 years old (range, 8-17 years old). A mean of 11.5 × 10(6) CD34+ cells (SD ± 8.2) was obtained. Related mortality at 100 days was 0% as well as during follow-up. Outpatient setting was 100%. CONCLUSIONS Simplified AHSCT in an outpatient setting is a feasible, safe and potentially therapeutic intervention for early-onset type 1 diabetes.
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Combination of low-dose imatinib plus nilotinib for the treatment of chronic-phase chronic myeloid leukaemia after imatinib failure. ACTA ACUST UNITED AC 2016; 21:411-4. [PMID: 26871197 DOI: 10.1080/10245332.2015.1119369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES This is a feasibility study to evaluate whether simultaneous administration of low doses of imatinib and nilotinib in chronic-phase chronic myeloid leukaemia (CP-CML) patients has the potential for transcript elimination after failure to imatinib. METHODS Ten patients were enrolled; eight had cytogenetic relapse and two had confirmed loss of major molecular response (MMR). At baseline, BCR-ABL kinase domain mutation was detected in four patients. RESULTS After 6 months of therapy, major cytogenetic response, complete cytogenetic response, and MMR were achieved in seven, four, and four patients, respectively. Grade 4 thrombocytopenia developed in one patient, and grade 1 skin rash in four. DISCUSSION AND CONCLUSION These results suggest that imatinib might have inhibitory effects on the clearance of nilotinib, increasing its efficacy. This dual therapy was well tolerated and resulted in improvement of cytogenetic and molecular responses in patients with CP-CML after failure to imatinib. ClinicalTrials.gov registration number: NCT01819389.
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Impact of outpatient non-myeloablative haematopoietic stem cell transplantation in quality of life vs. conventional therapy. PSYCHOL HEALTH MED 2015; 21:10-9. [PMID: 26125120 DOI: 10.1080/13548506.2015.1054843] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The role of outpatient hematopoietic stem cell transplantation (HSCT) as a therapeutic tool has been strengthened significantly because of the increasing number of patients undergoing this treatment. Due the very nature of this procedure, one of the aspects that should not be overlooked is the quality of life (QOL) of patients undergoing HSCT. Thus, one must consider not only health status after treatment, but also, the psychosocial implications for the patient. This is an observational, longitudinal, and prospective study to assess QOL in patients undergoing outpatient HSCT vs. similar patients receiving medical treatment (MxTx). By applying the COOP/WONKA charts on five occasions (pre-HSCT/initial, post-HSCT/first month, and at 3, 6, and 9 months), thirty-eight patients were analysed, 19 with HSCT and 19 with MxTx with no differences in age, gender or diagnosis. The initial survey found significant differences only in pain perception, which was higher in the HSCT group (p = .08); at the first month, there was a greater tendency for feelings of depression or anxiety in the HSCT group (p = .016), with more limitations in social (p = .003) and daily (p = .044) activities. From 3 months post-HSCT, the results were very similar. The differences persisted only in the area of social activities. Four patients developed graft-versus-host disease with no significant difference in the scores obtained compared to other transplant patients at 3, 6, and 9 months (p = .26) of follow-up.
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Effective collection of peripheral blood stem cells in children weighing 20 kilogram or less in a single large-volume apheresis procedure. J Clin Apher 2014; 30:281-7. [PMID: 25557252 DOI: 10.1002/jca.21375] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 11/30/2014] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Peripheral blood stem cell (PBSC) transplantation has become a routine procedure in pediatric oncology. A special group of PBSC donors are children weighing 20 kg or less. Limited vascular access and low blood volume puts them at a higher risk. Central line placement and a priming apheresis machine are recommended to avoid these complications. PATIENTS AND METHODS PBSC collections performed from July 2006 to May 2013 in children weighing less than 20 kg were included. All donors had a central venous catheter (CVC). An apheresis machine was primed with packet red blood cells. RESULTS Twenty-seven PBSC collections were performed in 22 children weighing 20 kg or less, 14 for allogeneic and 8 for autologous transplantation, in order to collect at least 2 × 10(6) CD34+ cells/kg. In the allogeneic group, median age and weight were 3 years (0.8-7) and 15.5 kg (8-20). In the autologous group, median age and weight were 3 years (2-7) and 15.35 kg (12.5-19.5). A single large-volume apheresis was sufficient to obtain the CD34+ cells needed in 78.5% and 75% of the allogeneic and autologous groups, respectively, with a median 11.84 × 10(6) and 5.79 × 10(6) CD34+ cells collected per kilogram of weight of the recipient. No serious complications related to the apheresis procedure or CVC placement occurred. CONCLUSION PBSC collection in a single large-volume apheresis for allogeneic and autologous transplants in children weighing 20 kg or less is a safe and effective procedure when based on standardized protocols.
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Abstract
INTRODUCTION The advent of imatinib as a therapeutic option of chronic myeloid leukemia (CML) has transformed this previously highly resistant disease into one that is susceptible to management with oral drugs that now offer high long-term survival rates. However, achieving an adequate adherence to treatment regimes is of critical importance. The characteristics of treatment compliance in Mexican patients have not been determined. METHODS We evaluated 38 CML patients, members of the Glivec(®) International Patient Assistance Program (GIPAP). A bimonthly simplified medication adherence questionnaire was applied and the adherence rate was calculated by direct tablet counting. RESULTS Two groups, one of local patients and another of out-of-town patients, were studied using an 85% adherence rate as a cut-off. The overall adherence rate was 85.9%. Fifteen patients were considered non-adherent (39.5%). The group of out-of-town patients presented a higher adherence rate of 92.8% in contrast with 76.3% in the local population (P = 0.021). The probability of achieving a complete cytogenetic response at some point of evolution after 8 years of follow-up was 93% in the adherent group vs. 58% in the group with an adherence rate <85% (P = 0.008). In patients with imatinib failure, the adherence rate was 75.8% compared to 95.5% (P = 0.008) in the optimal response group. CONCLUSIONS In Mexican patients with CML, non-adherence to treatment is a cause of the failure to achieve remission or the subsequent loss of a complete cytogenetic and major molecular response.
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Safety and tolerability of intrathecal delivery of autologous bone marrow nucleated cells in children with cerebral palsy: an open-label phase I trial. Cytotherapy 2014; 16:810-20. [PMID: 24642016 DOI: 10.1016/j.jcyt.2014.01.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 01/10/2014] [Accepted: 01/14/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND AIMS Cerebral palsy (CP) is related to severe perinatal hypoxia with permanent brain damage in nearly 50% of surviving preterm infants. Cell therapy is a potential therapeutic option for CP by several mechanisms, including immunomodulation through cytokine and growth factor secretion. METHODS In this phase I open-label clinical trial, 18 pediatric patients with CP were included to assess the safety of autologous bone marrow-derived total nucleated cell (TNC) intrathecal and intravenous injection after stimulation with granulocyte colony-stimulating factor. Motor, cognitive, communication, personal-social and adaptive areas were evaluated at baseline and 1 and 6 months after the procedure through the use of the Battelle Developmental Inventory. Magnetic resonance imaging was performed at baseline and 6 months after therapy. This study was registered in ClinicaTrials.gov (NCT01019733). RESULTS A median of 13.12 × 10(8) TNCs (range, 4.83-53.87) including 10.02 × 10(6) CD34+ cells (range, 1.02-29.9) in a volume of 7 mL (range, 4-10.5) was infused intrathecally. The remaining cells from the bone marrow aspirate were administered intravenously; 6.01 × 10(8) TNCs (range, 1.36-17.85), with 3.39 × 10(6) cells being CD34+. Early adverse effects included headache, vomiting, fever and stiff neck occurred in three patients. No serious complications were documented. An overall 4.7-month increase in developmental age according to the Battelle Developmental Inventory, including all areas of evaluation, was observed (±SD 2.63). No MRI changes at 6 months of follow-up were found. CONCLUSIONS Subarachnoid placement of autologous bone marrow-derived TNC in children with CP is a safe procedure. The results suggest a possible increase in neurological function.
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Feasibility of an outpatient HLA haploidentical stem cell transplantation program in children using a reduced-intensity conditioning regimen and CD3–CD19 depletion. Hematology 2013; 19:10-7. [DOI: 10.1179/1607845413y.0000000088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Allogeneic peripheral blood stem cell transplantation using reduced-intensity conditioning in an outpatient setting in ABO-incompatible patients: are survival and graft-versus-host disease different? Transfusion 2013; 54:1269-77. [PMID: 24898453 DOI: 10.1111/trf.12466] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/09/2013] [Accepted: 09/12/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND Graft-versus-host disease (GVHD) is a major cause of morbimortality after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Minor ABO incompatibility has been associated with an increased risk of GVHD. We analyzed the impact of ABO matching on patient outcome after peripheral blood, reduced-intensity allo-HSCT in an outpatient setting, and its relationship with GVHD. STUDY DESIGN AND METHODS Data of 121 patients were included. All patients received allo-HSCT from HLA-identical siblings as outpatients using a reduced-intensity conditioning regimen. Influence of ABO matching as a risk factor for the development of GVHD and survival was analyzed using logistic regression and Cox proportional hazards regression, respectively. RESULTS Median age was 36 years (range, 1-71 years); 88 patients were ABO identical: 13 presented major mismatch and 20 minor mismatch, with an ABO incompatibility rate of 27.3%. The median follow-up period was 54 months (range, 0.3-120 months). Minor ABO incompatibility patients presented the highest rate of acute GVHD (aGVHD; 25%), in comparison with ABO-identical (20.5%) and major ABO incompatibility patients (15.4%; p = 0.79). The highest incidence of chronic GVHD (cGVHD) occurred in the context of minor ABO incompatibility (35%), in contrast to ABO-identical (30.8%) and major ABO incompatibility (15.4%). Survival was higher for patients in the minor ABO mismatch group; however, there was no significant correlation between ABO matching status and survival (p = 0.45). CONCLUSION Using this type of peripheral blood stem cell transplantation, minor ABO-mismatched allo-HSCT was associated with a higher incidence of aGVHD and cGVHD and with increased survival, albeit with no significance.
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Non-myeloablative hematopoietic stem cell transplantation is of limited value in advanced or refractory acute myeloblastic leukemia. The Mexican experience. Hematology 2013; 12:193-7. [PMID: 17558694 DOI: 10.1080/10245330701214285] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is an effective strategy for preventing relapse of acute myelogenous leukemia (AML). We analyzed the outcome of 31 primary AML patients who received a reduced-intensity conditioning regimen for allogeneic HSCT in first or second remission. Thirty-one AML patients, 20 in first complete remission (FCR), 8 in second complete remission (SCR) and 3 in a partial remission (SPR) were included. All received busulfan 4 mg/kg/d/2 days, fludarabine 30 mg/m(2)/d/3 days and cyclophosphamide 350 mg/m(2)/d/3 days as conditioning regimen. The median number of CD34+ cells infused was 5.6 x 10(6)/kg and 5.2 x 10(6) in FCR and SCR group, respectively. All patients received cyclosporine-A (CsA) and methotrexate as graft vs. host disease (GvHD) prophylaxis. All patients showed myeloid engraftment (neutrophils >0.5 x 10(9)/l) after a median of 13 days in FCR group and 15 days in SCR group. Platelet recovery >20 x 10(9)/l was achieved after a median of 13 days in both groups. Relapse for 20 patients in FCR was 35% compared to 91% for 11 in SCR/SPR (p < 0.05). Conclusions. Reduced-intensity conditioning followed by allogeneic HSCT can induce stable remission in primary AML patients transplanted in FCR. A high relapse rate was documented in patients with refractory or relapsed AML.
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High response rate to low-dose rituximab plus high-dose dexamethasone as frontline therapy in adult patients with primary immune thrombocytopenia. Eur J Haematol 2013; 90:494-500. [DOI: 10.1111/ejh.12102] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2013] [Indexed: 11/26/2022]
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Low-dose rituximab for the treatment of acute thrombotic thrombocytopenic purpura: report of four cases. ACTA ACUST UNITED AC 2013; 18:233-6. [PMID: 23432850 DOI: 10.1179/1607845412y.0000000073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE AND IMPORTANCE Thrombotic thrombocytopenic purpura (TTP) is a life-threatening disorder that needs prompt diagnosis and treatment. Front-line therapy consists of plasma exchange (PEx) and steroids, but, in some instances, this is not enough to achieve a complete and sustained response. CLINICAL PRESENTATION We report four cases of TTP treated with low-dose rituximab, PEx, and a short course of steroids with an excellent outcome. Three of the patients had primary TTP and another presented an underlying human immunodeficiency virus infection. INTERVENTION Rituximab, 100 mg intravenously, was initiated on days 2-8 from the start of PEx as first-line therapy in three cases and as salvage therapy for relapsing disease in one. The number of PEx needed ranged from 5 to 12 sessions. All patients achieved complete remission and are currently asymptomatic, with complete response duration of 8-22 months. CONCLUSION Treatment of TTP with low-dose rituximab, along with PEx and steroids, seems to be as effective as the standard dose of monoclonal antibody.
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Effectiveness of subcutaneous low-dose alemtuzumab and rituximab combination therapy for steroid-resistant chronic graft-versus-host disease. Haematologica 2011; 97:717-22. [PMID: 22133770 DOI: 10.3324/haematol.2011.054577] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Chronic graft-versus-host disease is a common late complication of allogeneic hematopoietic stem cell transplantation. Corticosteroids are the standard initial treatment. Second-line treatment has not been well defined. We evaluated the effectiveness and safety of low doses of alemtuzumab plus low doses of rituximab in the treatment of steroid-refractory chronic graft-versus-host disease. DESIGN AND METHODS Ten men and 5 women were prospectively included in the study. All patients received one cycle of subcutaneous alemtuzumab 10 mg/day/3 days and intravenous rituximab 100 mg on Days +4, +11, +18 and +25. The therapeutic response was measured on Days +30, +90 and +365 of the protocol. RESULTS Median age was 41 years. The main site involved was the oral mucosa (86.7%) followed by the eyes (66.7%), liver (60%), skin (53%), lungs (13.3%) and intestinal tract (6.7%). The overall response was 100% at Day +30 evaluation: 10 patients (67%) had partial remission, 5 (33%) had complete remission. At Day +90 evaluation, 7 (50%) patients had partial remission, 4 (28%) had complete remission; 3 (21%) had relapsed chronic graft-versus-host disease and one patient did not reach the evaluation time point. So far, 5 patients have reached the Day +365 follow-up evaluation; 2 (40%) had partial remission, 2 had complete remission and one experienced chronic graft-versus-host disease progression. Adverse effects were mainly infections in 67% of patients; these were all quickly solved, except for one patient who died from pneumonia. CONCLUSIONS This combination therapy appears to be an efficacious and safe treatment for steroid-refractory chronic graft-versus-host disease. Longer follow up to determine the durability of response and survival is required (ClinicalTrials.gov: NCT01042509).
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Therapeutic choices in patients with Ph-positive CML living in Mexico in the tyrosine kinase inhibitor era: SCT or TKIs? Bone Marrow Transplant 2008; 42:23-8. [DOI: 10.1038/bmt.2008.90] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Outpatient allografting using non-myeloablative conditioning: the Mexican experience. Bone Marrow Transplant 2007; 40:119-23. [PMID: 17530008 DOI: 10.1038/sj.bmt.1705700] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A group of 132 patients with both malignant and nonmalignant conditions was allografted using the 'Mexican' method of non-ablative conditioning. The conditioning was delivered on an outpatient basis and the procedure was planned to be conducted on outpatients in all cases. While 103 patients (78%) were able to complete the procedure totally as outpatients, 29 (22%) were hospitalized because of fever, mucositis or acute graft-versus-host disease. In a multivariate analysis, although differences were not statistically significant, it was found that the patients who were allografted as outpatients had higher levels of hemoglobin (12 versus 11.8 g/dl), higher platelet counts (248 versus 191 x 10(9)/l), lower white blood cell counts (11.7 versus 12.4 x 10(9)/l), higher Karnofsky scale scores (100 versus 90%) and lower creatinine levels (0.9 versus 0.93 mg/dl). A total of 86% of the patients with normal values for these variables could be allografted as outpatients, whereas only 67% of those with abnormal values completed the entire procedure as outpatients. It is concluded that allografting can be accomplished totally on an outpatient basis using the 'Mexican' reduced intensity-conditioning regimen.
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Platelet aggregation in children with acute lymphoblastic leukemia during induction of remission therapy. Arch Med Res 2004; 35:141-4. [PMID: 15010194 DOI: 10.1016/j.arcmed.2003.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2003] [Accepted: 10/01/2003] [Indexed: 12/01/2022]
Abstract
BACKGROUND Development of thromboembolytic events is a major complication during induction of remission therapy (IRT) for acute lymphoblastic leukemia (ALL) of childhood. Increased in vitro platelet aggregation in response to drugs employed at this stage has been documented. To investigate the presence of an in vivo platelet agonist effect, we studied changes in aggregation patterns of patients with ALL receiving IRT. METHODS Platelets from 22 children with a new diagnosis of ALL were obtained during IRT once the platelet count reached >100 x 10(9)/L. Platelets were stimulated with adenosine diphosphate (ADP), collagen, ristocetin, and epinephrine. Platelet responses were evaluated by optical aggregometry. RESULTS Percentages of platelet aggregation in ALL patients were as follows: ADP, 89+/-22; collagen, 90+/-24; ristocetin, 84+/-26, and epinephrine, 81+/-20. Percentages in healthy individuals were ADP: 98+/-12; collagen: 105+/-10; ristocetin: 100+/-15, and epinephrine, 98+/-8. CONCLUSIONS Platelet aggregation with classical agonists was diminished during IRT for ALL of childhood, although it remained within the normal lower limit for age. Considerable heterogeneity in platelet reactivity existed, probably reflecting the presence of several pharmacologically altered platelet subpopulations. No apparent clinical correlation of aggregometric changes was documented.
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Bone marrow transplantation in a child with hemophagocytic lymphohistiocytosis using a less toxic conditioning regimen. Arch Med Res 1999; 30:338-40. [PMID: 10573638 DOI: 10.1016/s0188-0128(99)00037-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
BACKGROUND Hemophagocytic lymphohistiocytosis (HLH) is a rare non-neoplastic, frequently fatal disease of childhood. HLA-matched bone marrow transplantation (BMT) can bring about long-term remission and an eventual cure. METHODS We report on the beneficial effect of BMT in a 2-month-old male using a less intensive conditioning regimen. The regimen included busulfan at 4 mg/kg/day (total dose 16 mg/kg), etoposide at 300 mg/m2/day (total dose 900 mg/m2), and cyclophosphamide at 50 mg/kg/day (total dose 150 mg/kg). Prophylaxis for graft-vs.-host disease included methotrexate and cyclosporine. RESULTS An absolute neutrophil count of 500 microL was noticed on + day 12 (engraftment day). At present, i.e., 400 days after the procedure, the patient is asymptomatic, his physical examination is normal, and a slightly increased level of gamma-glutamyl-transpeptidase (GGT) and alkaline phosphatase are the only laboratory abnormalities. CONCLUSIONS In this case, the conditioning regimen was adequate for the eradication of the disease and allowed persistent engraftment without significant toxicity. The results in our patient suggest that a less toxic regimen is feasible and permits rapid engraftment without compromising the effectiveness of chemotherapy.
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