Active clinical trials for "Leukemia, Lymphocytic, Chronic, B-Cell"

This is a global, Phase 3b, multicenter, open-label, single-arm study to evaluate the safety and efficacy of acalabrutinib 100 mg twice daily (bid) in approximately 540 participants with chronic lymphocytic leukemia (CLL). Participants will be enrolled into 3 cohorts: treatment-naive (TN), relapsed/refractory (R/R), and prior Bruton tyrosine kinase inhibitor (BTKi) therapy. Participants will remain on study treatment until completion of 48 cycles (28 days per cycle), disease progression, toxicity requiring discontinuation, withdrawal of consent, loss to Follow-up, death, or study termination by the sponsor whichever occurs first. The duration of the study will be approximately 72 months from the first participant enrolled. This duration includes an estimated 24-month recruitment time and an assumed 48 cycles of study treatment (28 days per cycle); additional study time will be accrued during the disease Follow up period for those participants remaining on study treatment after completion of 48 cycles prior to the final data cutoff (DCO) (the amount of time will vary by participant).

This is a single arm, phase II trial of HLA-haploidentical related hematopoietic cells transplant (Haplo-HCT) using reduced intensity conditioning (fludarabine and melphalan and total body irradiation). Peripheral blood is the donor graft source. This study is designed to estimate disease-free survival (DFS) at 18 months post-transplant.

The purpose of this first in human study is to assess safety, tolerability, Pharmacokinetic (PK) and preliminary clinical activity and to estimate the Maximum Tolerated Doses (MTD(s))/ Recommended Phase 2 Doses (RP2D(s)) of S65487 as single agent administered intravenously (i.v.) in adult patients with refractory or relapsed Acute Myeloid Leukemia (AML), Non-Hodgkin Lymphoma (NHL), Multiple Myeloma (MM) or Chronic Lymphocytic Leukemia (CLL).

Patients enrolled to the study will have chronic lymphocytic leukemia (CLL) and are actively receiving ibrutinib. Patients will have either been receiving ibrutinib for one year without having had a complete response or patients will have developed a resistance mutation to ibrutinib. This study will have two parts, a dose escalation part and a dose expansion part. In the dose escalation part, the maximum tolerated dose (MTD) of the combination of VAY736 with ibrutinib will be determined. Once determined, the dose expansion part of the study will begin.

The purpose of this study is to assess progression-free survival (PFS) from treatment with ibrutinib plus venetoclax (I+VEN) compared with obinutuzumab plus chlorambucil (G-Clb) as assessed by an Independent Review Committee (IRC).

This phase III trial compares adding a new anti-cancer drug (venetoclax) to the usual treatment (ibrutinib plus obinutuzumab) in older patients with chronic lymphocytic leukemia who have not received previous treatment. The addition of venetoclax to the usual treatment might prevent chronic lymphocytic leukemia from returning. This trial also will investigate whether patients who receive ibrutinib plus obinutuzumab plus venetoclax and have no detectable chronic lymphocytic leukemia after 1 year of treatment, can stop taking ibrutinib. Ibrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Immunotherapy with obinutuzumab may induce changes in body's immune system and may interfere with the ability of cancer cells to grow and spread. Venetoclax is in a class of medications called B-cell lymphoma-2 (BCL-2) inhibitors. It may stop the growth of cancer cells by blocking Bcl-2, a protein needed for cancer cell survival. Giving ibrutinib and obinutuzumab with venetoclax may work better at treating chronic lymphocytic leukemia compared to ibrutinib and obinutuzumab.

Ibrutinib, a first-in-class Bruton Tyrosine kinase (BTK) inhibitor, has become an established treatment in relapsed/refractory chronic lymphocytic leukemia (CLL). However, despite a considerable improvement of Progression Free Survival (PFS) and Overall Survival (OS) in comparison with historical controls, the prognosis of patients with 17p deletion (del17p) remains a concern, as it is clearly much less favourable than that of patient without del17p. Again, TP53 mutations correlated to poorer prognostic in Relapsed/Refractory (R/R) CLL patients treated with ibrutinib (Brown JR et al,2018). Despite these therapeutic advances, the treatment of CLL with TP53 disruption thus remains a difficult issue that warrants evaluation of alternative treatment strategies, in particular the use of ibrutinib in combination with other agents. A body of evidence suggests that targeting the extracellular molecule CD38 might be an interesting option. CD38 is a transmembrane glycoprotein with multiple receptor and enzymatic functions. The interaction of CD38 with its ligand CD31 (also known as Platelet Endothelial Cell Adhesion Molecule (PECAM-1)) not only plays a role in the binding and the migration of leucocytes through the endothelial cells wall but also triggers the activation of intracellular pathways involved in the differentiation and activation of B cells. Previous results strongly suggest that CD38 favours the expansion of CLL clones not only directly by transducing a proliferation signal but also by directing them to anatomic sites where they find favourable conditions for proliferation and survival. Daratumumab is a first-in-class human IgG1ĸ monoclonal antibody (mAb) that binds CD38-expressing malignant cells with high affinity. Daratumumab induces tumor cell death through multiple mechanisms such as antibody-dependent cell-mediated cytotoxicity (ADCC), complement dependent cytotoxicity (CDC), antibody-dependent cellular phagocytosis (ADCP) and induction of apoptosis (de Weers et al, 2011). Recent data show that daratumumab may also display an immunomodulatory effect through depletion of a subset of immunosuppressive CD38+ Tregs (Krejcik et al, 2016). Early-stage clinical trials found daratumumab to be safe and to display encouraging clinical activity as a single agent in relapsed/refractory multiple myeloma (MM) patients (Lockhorst et al 2016, Lonial et al, 2016). Overall response rate was 31%, with rapid (median 1 month) and durable responses in this heavily pretreated MM population. Interestingly, no patient discontinued the treatment because of drug-related adverse events. These results led to approval of daratumumab in relapsed/refractory MM in December 2015. The clinical efficacy of daratumumab along with its very favourable safety profile supports its investigation in other lymphoproliferative malignancies. In particular, the expression of CD38 in poor prognosis CLL and the key role of CD38 in CLL biology provide a basis for examining the potential of daratumumab in this disease. In preclinical studies, (Matas-Céspedes et al, 2016; Manna et al, 2017) Daratumumab efficiently kills CLL cell lines and patient-derived CLL cells by ADCC and ADCP in vitro. Daratumumab modulates CLL-T reg levels and increase cytotoxic effector T cells. Rationale for combining ibrutinib with daratumumab: These data suggest that combining ibrutinib with daratumumab might have a synergistic or additive effect. Both drugs inhibit B cell receptor (BCR) signalling via two different converging pathways, i.e. BTK and CD38/ZAP70/ERK (Deaglio et al, 2007). In vitro, Manna et al have shown that daratumumab is able to modulate BCR signaling. Interestingly, the ibrutinib /daratumumab combination significantly enhanced mitochondrial-mediated apoptosis bth in CD38 high and CD38 low CLL cells (Manna et al, 2017). Altogether, this provides a rationale for evaluating the safety and efficacy of the association of daratumumab with ibrutinib in high-risk relapsed/refractory patients for whom the standard-of-care using ibrutinib as a single agent has demonstrated limitations in terms of long-term disease control. Primary objective of the study: to determine the efficacy of a treatment combining daratumumab and ibrutinib in a poor risk population of relapsed CLL patients with TP53 dysfunction. Secondary objectives of the study : to determine the safety profile of daratumumab in combination with ibrutinib in CLL patients. Inclusion period: 24 months Treatment duration (ibrutinib + daratumumab): continuous, until disease progression or unacceptable toxicity. Follow-up period: will begin once the subject discontinues study treatment, during 2 years.

The purpose of the study is to determine the recommended Phase 2 dose(s) (RP2D[s]) in B cell non-Hodgkin lymphoma (NHL) and chronic lymphocytic leukemia (CLL) in Part 1 and to evaluate the safety of JNJ-64264681 at the RP2D(s) in Part 2.

This phase II trial studies how well nivolumab works for the treatment of hematological malignancies that have come back (relapsed), does not respond (refractory), or is detectable after CAR T cell therapy. Immunotherapy with monoclonal antibodies, such as nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.

Study Phase III Randomized Study to Investigate the Use of Acalabrutinib in the Treatment of Patients with Early Stage CLL With High Risk of Early Disease Progression. The study will consist of a screening phase, a treat¬ment/observation phase until progression, and a follow-up phase for progression in patients who discontinue treatment with Acalabrutinib without confirmed progression. Patients who progress will be followed for survival and initiation of subsequent antileukemic therapy. In the study, 130 patients from 20 centers in Spain with intermediate, high or very high risk will be randomized (1:1) to receive Acalabrutinib (n=65) or clinical observation (n=65). Acalabrutinib will be administered orally 100 mg twice daily on a continuous schedule. Even though the majority of patients with CLL are currently diagnosed at early stages of the disease, there is a consensus that the standard of care in these patients is clinical observation (watch & wait) despite of the presence of risk factors for premature disease progression. Early treatment in patients with adverse prognostic parameters could prevent a disease evolving to a more advanced stage, and therefore more difficult to treat. So far, conventional chemotherapy did not show any benefit in terms of overall survival in patients with early stage CLL. (Dighiero 1998, Hoechstetter Leukemia 2017) Alongside this, treatment with chemotherapy may provoke two undesired effects: first, the occurrence of bone marrow toxicity that may hamper the subsequent administration of other treatments during the course of the disease; second, but not less relevant, genotoxic drug delivery may elicit a phenomenon of clonal selection leading to the appearance of CLL cells with genetic aberrations associated with refractoriness and aggressive outcome (i.e., TP53). Against this background, it is of interest to investigate the role of new non-genotoxic drugs in the treatment of patients with CLL in early stages. Among different scores for selecting cases that are likely to progress rapidly, the German CLL Study Group (GCLLSG) risk score that includes 8 independent predictors for OS and PFS, differentiates patients with low-risk PFS vs. those with risk of early disease progression (median PFS 87 months vs. less than 27 months), allowing for a risk-adapted treatment approach in early stage CLL. (Pflug 2014, Langerbeins 2015). Acalabrutinib, a second-generation, selective inhibitor of BTK, has shown substantial activity in patients with CLL. Acalabrutinib is a non-genotoxic drug active in cases with genetic lesions associated with chemorefratoriness and adverse outcome, including patients with alterations of TP53. Therefore, acalabrutinib represents a suitable compound for the treatment of patients with CLL in early stages with risk of early disease progression, including the high-risk CLL patient population with TP53 alterations.