View clinical trials related to Leukemia, Lymphoid.
Filter by:20-25% of patients over 15 years with acute lymphoblastic leukemia (ALL) have the Philadelphia chromosome or BCR-ABL rearrangement. Traditionally, intensive chemotherapy followed by hematopoietic stem cell transplantation (HSCT) have formed the basis allogeneic treatment of this disease, but the results have been poor (60-75% complete remissions-RC-and probability of long-term survival less than 20%). The effectiveness of imatinib for hematologic responses in patients with Ph + (observed in phase I and II) led to its use in phase III trials in combination with chemotherapy. They saw a chance of obtaining the RC above 90%, with acceptable toxicity, a molecular response rate (MR) of 40-50%, and prolonged follow-up studies, a probability of disease-free survival (DFS ) of 30-50%, significantly higher than historical controls with the same chemotherapy without imatinib. This led to the approval of imatinib by the rating agencies in the U.S., Europe and Japan as a treatment for Ph + in combination with chemotherapy. Of the studies that led to the approval of this indication for imatinib, and other incurred after, the following conclusions can be drawn: There is no specific pattern of combination of imatinib (at doses of 600 mg / day, po) and chemotherapy. However, when compared with concomitant alternating with the first achieved a higher rate of RM at the end of induction, although this did not influence DFS. In studies in elderly patients has achieved a high CR rate (almost 100% in all series), only imatinib and glucocorticoids, suggesting that an attenuated induction may be sufficient to achieve CR in young patients with minimal toxicity, which further compromises the administration of treatment and allow for an allogeneic HSCT with minimal toxic load possible. Although there is no consensus on the indication of allogeneic HSCT in first CR when given imatinib associated with intensive chemotherapy is an option that is done in most studies. The allogeneic HSCT is most effective when carried out in complete molecular response to or greater than when there is more residual disease. However, the impact of MRI to obtain early (after induction) on survival is not clear. So far-reaching goal is to make the TPH in complete molecular response situation or greater. The relapse of the disease at the molecular level is still short-term (less than 3 months) of hematological relapse. This implies the need for frequent monitoring of residual disease (ER) The frequency of relapse post HSCT is high (around 30%), raising the need for any post HSCT treatment, including imatinib included. Are currently ongoing clinical trials comparing the systematic administration of imatinib after administration TPH face is detected only when ER. The applicability of the administration of imatinib after HSCT is limited by toxicity related to the procedure of TPH, is making frequent dose reduction or discontinuation. Therefore, a reasonable approximation treatment of Ph + outside the context of a clinical trial is to get as many molecular responses before allogeneic HSCT in a position to make the same MRI complete or greater. After TPH, must be very close monitoring of the ER, and imatinib is administered as soon as you notice the loss of molecular response. In patients who can not make an allogeneic HSCT for lack of histocompatible donor or contraindications for its realization it is recommended imatinib and chemotherapy, although there are studies that have undergone an autologous HSCT, followed or not treatment "maintenance" with imatinib. The low toxicity of autologous HSCT and no effect of graft versus leukemia are strongly recommended the administration of maintenance therapy with imatinib combined with chemotherapy or not.
This randomized phase III trial is studying how well combination chemotherapy works in treating young patients with newly diagnosed acute lymphoblastic leukemia that is likely to come back or spread. Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) and giving the drugs in different doses and in different combinations may kill more cancer cells.
This study proposes to provide adequate treatment and is based on current scientific evidence for elderly patients with ALL Bcr / Abl positive. To determine whether low-dose chemotherapy associated with imatinib or dasatinib has acceptable tolerability in elderly patients. To determine whether this association can increase the rate and quality of referrals to the results of the literature of imatinib as monotherapy for elderly patients
This phase I/II trial studies the side effects and best dose of inotuzumab ozogamicin and to see how well it works when given together with combination chemotherapy in treating patients with acute lymphoblastic leukemia. Inotuzumab ozogamicin is a monoclonal antibody, called inotuzumab, linked to a toxic agent called N-acetyl-gamma-calicheamicin dimethyl hydrazide (CalichDMH). Inotuzumab attaches to CD22 positive cancer cells in a targeted way and delivers CalichDMH to kill them. Immunotherapy with monoclonal antibodies, such as blinatumomab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving inotuzumab ozogamicin together with combination chemotherapy may be a better treatment for acute lymphoblastic leukemia.
The protocol objective is providing adequate treatment and based on broad consensus in elderly patients with Acute Lymphoblastic Leukemia (ALL). Apply uniform treatment that enables a joint analysis of results strong enough to make conclusions on specific subgroups of patients (genotypic subtypes, particularly LAL Bcr/abl positive, phenotype, or strata of age or associated diseases). Provide results of a treatment to consider standard against which to compare the results of phase II trials of experimental drugs that undoubtedly will be activated in the coming years
The biological characteristics of the adult LAL, karyotypic and phenotypic particular, are fundamentally different from those of Acute Lymphoblastic Leukemia (ALL) children and, consequently, the results of treatment are substantially lower. Additionally, elderly patients tolerate the drugs considered relatively low-key in the management of the LAL and suffer more toxicity. Although the LAL is much more common in patients over 60 years of age than in younger adults, older adults with ALL are clearly underrepresented in prospective controlled studies. A good portion of elderly patients are not able to tolerate the intensity of the standard treatment applied to children or young adults and a significant portion of them receive only palliative or supportive treatment. The data in the literature relating specifically to the elderly population are scarce and most of them have obtained a stratification by age of study designed for young people (CALGB, GMALL, PETHEMA). To date, the group's recommendation was to treat PETHEMA the LAL-96RI protocol for elderly patients because this protocol less aggressive than those used in high-risk ALL. However, the development of inhibitors of tyrosine kinases LAL effective in Bcr / abl positive, a relatively common type of LAL in the older patient, requires a differentiated treat these patients. Moreover, analysis of data from patients treated so far with the LAL-96RI protocol has shown mediocre results even for LAL Bcr / abl negative. This analysis also showed a significant benefit in survival related to the reduction of treatment (removal of the L-asparaginase during induction and cyclophosphamide at the end of induction) attributed to a reduction in toxicity
Establishment of Acute Lymphocytic Leukemia Data Base in the Department of Oncology
Rationale New chemotherapeutic agents are needed in relapsing B-Cell Chronic Lymphocytic Leukemia (B-CLL) to overcome resistance of CLL cells. Valproic acid (VPA) is an inhibitor of histone deacetylase (HDAC) used as an anticonvulsant and mood-stabilizing drug for decades. VPA mediates apoptosis in CLL cells through caspase activation. VPA shows toxicity toward CLL cells displaying alterations in the p53 pathway. The combination of VPA with fludarabine or 2-Chlorodeoxyadenosine (CdA, Cladribine) results in synergistic loss of B-CLL cell viability, and significant increase in apoptosis. The highest index of synergism is observed between VPA and CdA, a purine nucleoside analog active in B-CLL. Study design Overall, the study will be proposed to previously treated patients with advanced B-CLL, who are not eligible for aggressive approaches, and who exhibit progressive disease. A total of 33 patients will be included. Estimated enrolment time is 2 years. - First part: It is planned to start therapy with single VPA during 2 months, targeting plasma levels that have been reported to be active in vitro toward CLL cells (but that do not exceed therapeutic levels in seizure prevention), and in parallel, to verify whether cellular targets of VPA have been actually inhibited in leukemic B-lymphocytes. - Second part: After the VPA preloading period (2 months), patients will be evaluated to receive CdA. CdA will be given at 5.6 mg/m²/day intravenously during 3 days, a reduced-dose schedule which is less toxic - at no obvious cost of loss of efficacy - as compared to the standard dosage of 5 days. CdA was chosen because it displays the highest level of in vitro synergism with VPA. Four monthly courses of CdA will be given. Patients will then be evaluated. VPA will be stopped at the time of response evaluation (scheduled 28 days after the last course of CdA).
Asparaginase is an important drug i the treatment of childhood leukaemia. The aim of this project is to study the pharmacokinetics, pharmacodynamics and antibody development and hypersensitivity reactions during prolonged PEG-asparaginase treatment. Study part 1) Asparaginase pharmacokinetics and pharmacodynamics during prolonged PEG-asparaginase treatment: A NOPHO ALL-2008 study Study part 2) Asparagine depletion in cerebrospinal fluid: A NOPHO ALL-2008 study Study part 3) A characterization of PEG-asparaginase hypersensitivity in children treated according to the NOPHO ALL 2008 protocol Perspectives: New knowledge about PEG-asparaginase treatment regarding dosing, dosing interval, adverse effects and EFS, which may lead to improved future therapy Patients: Children diagnosed with acute lymphoblastic leukaemia in the Nordic Countries
There are two regions in the adult brain that exhibit neuronal stem and progenitor cells, generating new neurons postnatally and throughout adulthood. One is the so called subventricular zone the other is the dentate gyrus of the hippocampus. Adult neurogenesis is a physiological process representing an important functional impact for certain brain areas, especially the hippocampus. The hippocampal formation plays an important role in long-term memory and spatial navigation. Inhibition of adult neurogenesis in mice by chemotherapy or radiation is followed by significant deficits in hippocampal memory functions while hippocampus-independent memory is unaffected. Clinical trials had shown that chemotherapy and brain radiation lead to cognitive dysfunction. However, the exact mechanisms underlying this phenomenon are still unidentified. The aim of our study is to investigate, whether the inhibition of adult neural stem cell proliferation in the hippocampus by intrathecal chemotherapy and/or cerebral radiation is responsible for treatment induced memory deficits. We will investigate patients suffering from acute lymphatic leukaemia (ALL) that receive prophylactic intrathecal chemotherapy and brain irradiation. The study represents a longitudinal investigation including a virtual "humanized" version of the morris-water-maze to test hippocampus dependent spatial memory, as well as MR-imaging for morphological (volumetry) and biochemical (spectroscopy) data.