Track topics on Twitter Track topics that are important to you
This study evaluated azacitidine as treatment of minimal residual disease (MRD) determined by a sensitive donor chimerism analysis of CD34(+) blood cells to pre-empt relapse in patients with CD34(+) myelodysplastic syndromes (MDS) or acute myeloid leukemia (AML) after allogeneic hematopoietic stem cell transplantation (HSCT). At a median of 169 days after HSCT, 20/59 prospectively screened patients experienced a decrease of CD34(+) donor chimerism to <80% and received four azacitidine cycles (75 mg/m(2)/day for 7 days) while in complete hematologic remission. A total of 16 patients (80%) responded with either increasing CD34(+) donor chimerism to 80% (n=10; 50%) or stabilization (n=6; 30%) in the absence of relapse. Stabilized patients and those with a later drop of CD34(+) donor chimerism to <80% after initial response were eligible for subsequent azacitidine cycles. A total of 11 patients (55%) received a median of 4 (range, 1-11) additional cycles. Eventually, hematologic relapse occurred in 13 patients (65%), but was delayed until a median of 231 days (range, 56-558) after initial decrease of CD34(+) donor chimerism to <80%. In conclusion, pre-emptive azacitidine treatment has an acceptable safety profile and can substantially prevent or delay hematologic relapse in patients with MDS or AML and MRD after allogeneic HSCT.Leukemia advance online publication, 2 September 2011; doi:10.1038/leu.2011.234.
Medical Clinic and Polyclinic I, University Hospital 'Carl Gustav Carus' Technical University of Dresden, Dresden, Germany.
This article was published in the following journal.
Name: Leukemia : official journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Acute erythroid leukemia (FAB-M6) and acute megakaryoblastic leukemia (FAB-M7) exhibit closely related properties in cells regarding morphology and the gene expression profile. Although allogeneic hem...
Gemtuzumab ozogamicin (GO) may increase the risk of sinusoidal obstruction syndrome (SOS) when used prior to allogeneic stem cell transplantation (HSCT). We assessed SOS incidence and outcomes after H...
Patients with relapsed/refractory hematologic malignancies after allogeneic stem cell transplantation have a poor prognosis due to the high rate of relapse. Techniques capable of decreasing post-trans...
Next-generation sequencing (NGS)-based circulating tumour DNA (ctDNA) detection is a promising monitoring tool for lymphoid malignancies. We evaluated whether the presence of ctDNA was associated with...
Loss of donor-mediated immune antitumor activity after allogeneic hematopoietic stem-cell transplantation (HSCT) permits relapse of hematologic cancers. We hypothesized that immune checkpoint blockade...
Allogeneic hematopoietic stem cell transplantation (Allo-HSCT) is now an effective treatment of Acute Myeloid Leukemia (AML). After allo-HSCT, relapses are the major cause of mortality and...
The purpose of this study is to find out if treating people who have high-risk myelodysplastic syndrome (MDS) with 5-Azacitidine (Vidaza) prior to their allogeneic hematopoietic cell trans...
Allogeneic hematopoietic cell transplantation (Allo-HSCT) is an effective therapy for acute leukemia, but relapse remains an important problem. Therapy options for relapse include stopping...
The purpose of this study is to evaluate three things. The first being whether azacitidine is absorbed in the body at the same rate or proportion for different concentrations. The second...
Primary Objective: -To determine the dose and schedule combination of 5-Azacitidine, when used as maintenance treatment after allogeneic transplantation for high-risk AML / MDS. Se...
The treatment of patients without the use of allogeneic BLOOD TRANSFUSIONS or blood products.
Frequency and quality of negative emotions, e.g., anger or hostility, expressed by family members or significant others, that often lead to a high relapse rate, especially in schizophrenic patients. (APA, Thesaurus of Psychological Index Terms, 7th ed)
An aminoquinoline that is given by mouth to produce a radical cure and prevent relapse of vivax and ovale malarias following treatment with a blood schizontocide. It has also been used to prevent transmission of falciparum malaria by those returning to areas where there is a potential for re-introduction of malaria. Adverse effects include anemias and GI disturbances. (From Martindale, The Extra Pharmacopeia, 30th ed, p404)
A treatment method in which patients are under direct observation when they take their medication or receive their treatment. This method is designed to reduce the risk of treatment interruption and to ensure patient compliance.
A disease or state in which death is possible or imminent.
Leukemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Leukemia is a broad term covering a spectrum of diseases. In turn, it is part of the even broader grou...
Organ transplantation is the moving of an organ from one body to another or from a donor site to another location on the patient's own body, for the purpose of replacing the recipient's damaged or absent organ. The emerging field of regenerative ...