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Spotlight on ixazomib: potential in the treatment of multiple myeloma.

ABSTRACT: Despite the significant therapeutic advances achieved with proteasome inhibitors (PIs) such as bortezomib and carfilzomib in prolonging the survival of patients with multiple myeloma, the development of drug resistance, peripheral neuropathy, and pharmacokinetic limitations continue to pose major challenges when using these compounds. Ixazomib is a second-generation PI with improved activity over other PIs. Unlike bortezomib and carfilzomib, which are administered by injection, ixazomib is the first oral PI approved by US Food and Drug Administration. This review discusses the biochemical properties, mechanisms of action, preclinical efficacy, and clinical trial results leading to the US Food and Drug Administration approval of ixazomib.

SUBMITTER: Muz B

PROVIDER: S-EPMC4714737 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Spotlight on ixazomib: potential in the treatment of multiple myeloma.

Muz Barbara B Ghazarian Rachel Nicole RN Ou Monica M Luderer Micah John MJ Kusdono Hubert Daniel HD Azab Abdel Kareem AK

Drug design, development and therapy 20160111

Despite the significant therapeutic advances achieved with proteasome inhibitors (PIs) such as bortezomib and carfilzomib in prolonging the survival of patients with multiple myeloma, the development of drug resistance, peripheral neuropathy, and pharmacokinetic limitations continue to pose major challenges when using these compounds. Ixazomib is a second-generation PI with improved activity over other PIs. Unlike bortezomib and carfilzomib, which are administered by injection, ixazomib is the f ...[more]

PMID: 26811670

Similar Datasets

The potential of ixazomib, a second-generation proteasome inhibitor, in the treatment of multiple myeloma.

Project description:The therapeutic armamentarium for multiple myeloma has recently benefited from the addition of several new agents (including second-generation proteasome inhibitors, monoclonal antibodies and histone deacetylase inhibitors). This review will focus on ixazomib, an orally bioavailable second-generation proteasome inhibitor. Specifically, we will review the preclinical data, clinical trial experience, potential indications as well as unanswered questions pertaining to this new agent in multiple myeloma.

| S-EPMC5495505 | biostudies-other

An evidence-based review of ixazomib citrate and its potential in the treatment of newly diagnosed multiple myeloma.

Project description:Proteasome inhibition represents one of the more important therapeutic targets in the treatment of multiple myeloma (MM), since by suppressing nuclear factor-?B activity, which promotes myelomagenesis, it makes plasma cells susceptible to proapoptotic signals. Bortezomib, the first proteasome inhibitor approved for MM therapy, has been shown to increase response rate and improve outcome in patients with relapsed/refractory disease and in the frontline setting, particularly when combined with immunomodulatory drugs and alkylating agents. Among second-generation proteasome inhibitors, ixazomib (MLN9708) is the first oral compound to be evaluated for the treatment of MM. Ixazomib has shown improved pharmacokinetic and pharmacodynamic parameters compared with bortezomib, in addition to similar efficacy in the control of myeloma growth and prevention of bone loss. Ixazomib was found to overcome bortezomib resistance and to trigger synergistic antimyeloma activity with dexamethasone, lenalidomide, and histone deacetylase inhibitors. Phase I/II studies using ixazomib weekly or twice weekly in relapsed/refractory MM patients suggested antitumor activity of the single agent, but more promising results have been obtained with the combination of ixazomib, lenalidomide, and dexamethasone in newly diagnosed MM. Ixazomib has also been used in systemic amyloidosis as a single agent, showing important activity in this difficult-to-treat plasma-cell dyscrasia. More frequent side effects observed during administration of ixazomib were thrombocytopenia, nausea, vomiting, diarrhea, fatigue, and rash, whereas severe peripheral neuropathy was rare. Here, we review the chemical characteristics of ixazomib, as well as its mechanism of action and results from preclinical and clinical trials.

| S-EPMC4189713 | biostudies-literature

Ixazomib-Thalidomide-Dexamethasone for induction therapy followed by Ixazomib maintenance treatment in patients with relapsed/refractory multiple myeloma.

Project description:BackgroundIxazomib-revlimid-dexamethason showed significant activity in relapsed/refractory multiple myeloma (RRMM). Here, we evaluate ixazomib in combination with thalidomide and dexamethasone for induction treatment followed by ixazomib maintenance therapy in RRMM patients.MethodsNinety patients have been included. Ixazomib-thalidomide-dexamethasone (4 mg, day 1, 8, 15; 100 mg daily; and 40 mg weekly) was scheduled for eight cycles followed by maintenance with ixazomib for one year.ResultsThe overall response rate was 51.1%, 23.3% achieved CR or VGPR and 10% MR resulting in a clinical benefit rate of 61.1%. In patients completing ≥2 cycles, the rates were 60.5%, 27.6% and 68.4%, respectively. Median progression-free survival (PFS) was 8.5 months in all, and 9.4 months in those completing ≥2 cycles. Response rates, PFS and overall survival (OS) were similar in patients with and without t(4;14) and/or del(17p), but PFS and OS was significantly shorter in patients with gain of 1q21. Multivariate regression analysis revealed gain of 1q21 as the most important factor associated with OS. Ixazomib maintenance resulted in an upgrade in the depth of response in 12.4% of patients. Grade 3/4 toxicities were relatively rare.ConclusionsIxazomib-thalidomide-dexamethasone followed by ixazomib maintenance therapy is active and well tolerated in patients with RRMM.Trial registration numberNCT02410694.

| S-EPMC6889132 | biostudies-literature

Spotlight on elotuzumab in the treatment of multiple myeloma: the evidence to date.

Project description:Despite advances in the treatment of multiple myeloma, it remains an incurable disease, with relapses and resistances frequently observed. Recently, immunotherapies, in particular, monoclonal antibodies, have become important treatment options in anticancer therapies. Elotuzumab is a humanized monoclonal antibody to signaling lymphocytic activation molecule F7, which is highly expressed on myeloma cells and, to a lower extent, on selected leukocyte subsets such as natural killer cells. By directly activating natural killer cells and by antibody-dependent cell-mediated cytotoxicity, elotuzumab exhibits a dual mechanism of action leading to myeloma cell death with minimal effects on normal tissue. In several nonclinical models of multiple myeloma, elotuzumab was effective as a single agent and in combination with standard myeloma treatments, supporting the use of elotuzumab in patients. In combination with lenalidomide and dexamethasone, elotuzumab showed a significant increase in tumor response rates and progression-free survival in patients with relapsed and/or refractory multiple myeloma. This review summarizes the nonclinical and clinical development of elotuzumab as a single agent and in combination with established therapies for the treatment of multiple myeloma.

| S-EPMC5063562 | biostudies-literature

Spotlight on daclizumab: its potential in the treatment of multiple sclerosis.

Project description:Multiple sclerosis (MS) is a chronic inflammatory-demyelinating disease of the central nervous system of a putative autoimmune etiology. Although the exact pathogenic mechanisms underlying demyelination and axonal damage in MS are not fully understood, T-cells are believed to play a central role in the pathogenesis of the disease. Daclizumab is a humanized binding monoclonal antibody that binds to the Tac epitope on the ?-subunit (CD25) of the interleukin-2 (IL-2) receptor, thus effectively blocking the formation of the high-affinity IL-2 receptor, which is expressed mainly on T-cells. A series of clinical trials in patients with relapsing MS demonstrated a profound effect of daclizumab on inflammatory disease activity and improved clinical outcomes compared with placebo or interferon-?, which led to the recent approval of daclizumab (Zinbryta™) for the treatment of relapsing forms of MS. Enhancement of endogenous mechanisms of immune regulation rather than inhibition of effector T-cells might explain the effects of daclizumab in MS. These include expansion and improved function of regulatory CD56bright NK cells, inhibition of the early activation of T-cells through blockade of IL-2 transpresentation by dendritic cells and reduction in the number of intrathecal proinflammatory lymphoid tissue inducer cells. The enhanced efficacy of daclizumab is accompanied by an increased frequency of adverse events and risks of serious adverse events, thus placing it as a second-line therapy and calling for the implementation of a strict risk management program. This review details the mechanisms of action of daclizumab, discusses its efficacy and safety in patients with MS, and provides an insight into the place of this novel therapy in the treatment of MS.

| S-EPMC6053094 | biostudies-literature

Ixazomib, lenalidomide, and dexamethasone in patients with newly diagnosed multiple myeloma: long-term follow-up including ixazomib maintenance.

Project description:Triplet combinations containing a proteasome inhibitor are a standard of care in newly diagnosed multiple myeloma (NDMM). We examined the long-term efficacy and safety of the all-oral combination of weekly ixazomib plus lenalidomide-dexamethasone (IRd), followed by single-agent ixazomib maintenance in NDMM patients. Of 65 enrolled patients, 53 received ixazomib 4?mg (days 1, 8, and 15) plus lenalidomide 25?mg (days 1-21) and dexamethasone 40?mg (days 1, 8, 15, and 22) for up to twelve 28-day induction cycles. Twenty-three patients discontinued induction for stem cell transplantation (SCT). In the remaining 42 patients, overall response rate was 80%, including 63% ?very good partial response (VGPR) and 32% complete responses. At a median follow-up of 56 months, median progression-free survival (PFS) was 35.4 months in the total population. Twenty-five patients received ixazomib maintenance; eight deepened their response (76% ?VGPR), and median PFS was 37.2 months in this subgroup. Nine of 42 patients who did not proceed to SCT (14% of total population) had an adverse event requiring discontinuation. Ixazomib (median???96%) and lenalidomide (median 88-94%) relative dose intensities were maintained throughout treatment. Weekly IRd, followed by ixazomib maintenance, was highly active with acceptable toxicity, enabling long-term administration with no evidence of cumulative toxicities.

| S-EPMC6755968 | biostudies-literature

Potential role of daratumumab in the treatment of multiple myeloma.

Project description:Multiple myeloma is the second most common hematologic malignancy in the US. Treatments utilizing alkylating agents, corticosteroids, proteasome inhibitors, and immunomodulatory drugs have resulted in significant survival benefits, however, despite the advances, relapse is inevitable. Decreased depth and duration of response obtained with each successive relapse of disease is typical of the disease course, thereby highlighting a continuing need for new treatment options. With the introduction of monoclonal antibodies for multiple myeloma, new options for treatment in the relapsed setting are on the horizon. Among the new immunologic agents is daratumumab (DARA), a humanized antibody to CD38 with potent multifaceted antitumor activity. Phase I and II clinical trials have demonstrated significant reduction in serum M-protein and bone marrow plasma cell percentage in refractory patients, with an acceptable toxicity profile. Moreover, ex vivo studies have shown that DARA may be particularly useful in combination with currently used anti-myeloma agents. With a recent breakthrough drug designation by the US Food and Drug Administration, DARA shows promise as mono- and combination therapy for the treatment of relapsed/refractory multiple myeloma.

| S-EPMC4069139 | biostudies-other

Comparison between ixazomib+cyclophosphamide+dexamethasone regimen and ixazomib+dexamethasone regimen for elderly and frail patients having newly diagnosed multiple myeloma.

Project description:AimsThe purpose of this prospective, randomized study was to investigate the effectiveness and safety of the ixazomib+cyclophosphamide+dexamethasone (ICd) and ixazomib+dexamethasone (Id) regimens in newly diagnosed multiple myeloma (NDMM) who were elderly and frail and to compare the two regimens.MethodsPatients were randomly grouped into ICd and Id group. The primary end point was ORR, and patients who received at least two cycles were analyzed. The median follow-up was 13.5 months. After nine induction cycles, patients were instructed to take single ixazomib for maintenance.ResultsThe overall response rate in the ICd and Id groups was 78.9% and 70.6%, respectively, whereas the very good partial remission or better rate was 47.4% and 23.5%, respectively. For the ICd and Id groups, the response rate after 4 cycles was 76.5% and 57.1%, and the median duration to response was 2 and 4 months, respectively. Adverse events (AEs) included gastrointestinal intolerance, rash, fatigue, and thrombocytopenia, with severe AEs occurring in 21.1% and 23.5% patients in the ICd and Id groups, respectively, and the AEs were manageable. Both the QLQ-C30 and QLQ-MY20 scales indicated that ICd and Id regimens could help maintain and improve the quality of life(QoL).ConclusionsThe ICd and Id regimens might be effective and well-tolerated in elderly and frail patients with NDMM. In addition, a favorable outcome was observed that ICd might tend to cause faster and higher remission than Id regimen without increasing the risk of AEs. The long-term effectiveness and safety of the two regimens need further investigation.

| S-EPMC10067049 | biostudies-literature

Phase I/II trial of bendamustine, ixazomib, and dexamethasone in relapsed/refractory multiple myeloma.

Project description:In this phase I/II trial, BID, bendamustine (70, 80, or 90?mg/m2), ixazomib (4?mg), and dexamethasone (40?mg), was administered to 28 patients with relapsed and/or refractory multiple myeloma (RRMM) exposed to bortezomib and lenalidomide and refractory to at least one. A 3?+?3 dose escalation based on dose-limiting toxicities (DLTs) was employed in phase I (total 15); 2/6 patients developed DLTs (neutropenia and thrombocytopenia) at dose level 3 establishing the recommended phase II dose as bendamustine 80?mg/m2, ixazomib 4?mg, and dexamethasone 40?mg. The median age was 67 years (range, 42-72), and 43% were females. Patients received a median of 4 (range, 4-9) prior lines of therapy, of which ~50% were double refractory. In phase II, total 19 patients were treated. With a median follow-up of 17 months, 11% achieved very good partial response, 50% achieved partial response, and 27% achieved stable disease. Median progression free (PFS) and overall (OS) survival were 5.2 months (95% CI, 1.96-8.3) and 23.2 months (95% CI 16.3-30.07). The most frequent adverse events were anemia, thrombocytopenia, leukopenia, nausea, diarrhea, and infections. Peripheral neuropathy was infrequent. BID is a well-tolerated and effective combination therapy for patients with RRMM.

| S-EPMC6663939 | biostudies-literature

Oral ixazomib, lenalidomide, and dexamethasone for transplant-ineligible patients with newly diagnosed multiple myeloma.

Project description:Continuous lenalidomide-dexamethasone (Rd)-based regimens are among the standards of care in transplant-ineligible newly diagnosed multiple myeloma (NDMM) patients. The oral proteasome inhibitor ixazomib is suitable for continuous dosing, with predictable, manageable toxicities. In the double-blind, placebo-controlled TOURMALINE-MM2 trial, transplant-ineligible NDMM patients were randomized to ixazomib 4 mg (n = 351) or placebo (n = 354) plus Rd. After 18 cycles, dexamethasone was discontinued and treatment was continued using reduced-dose ixazomib (3 mg) and lenalidomide (10 mg) until progression/toxicity. The primary endpoint was progression-free survival (PFS). Median PFS was 35.3 vs 21.8 months with ixazomib-Rd vs placebo-Rd, respectively (hazard ratio [HR], 0.830; 95% confidence interval, 0.676-1.018; P = .073; median follow-up, 53.3 and 55.8 months). Complete (26% vs 14%; odds ratio [OR], 2.10; P < .001) and ≥ very good partial response (63% vs 48%; OR, 1.87; P < .001) rates were higher with ixazomib-Rd vs placebo-Rd. In a prespecified high-risk cytogenetics subgroup, median PFS was 23.8 vs 18.0 months (HR, 0.690; P = .019). Overall, treatment-emergent adverse events (TEAEs) were mostly grade 1/2. With ixazomib-Rd vs placebo-Rd, 88% vs 81% of patients experienced grade ≥3 TEAEs, 66% vs 62% serious TEAEs, and 35% vs 27% TEAEs resulting in regimen discontinuation; 8% vs 6% died on study. Addition of ixazomib to Rd was tolerable with no new safety signals and led to a clinically meaningful PFS benefit of 13.5 months. Ixazomib-Rd is a feasible option for certain patients who can benefit from an all-oral triplet combination. This trial was registered at www.clinicaltrials.gov as #NCT01850524.

| S-EPMC8462404 | biostudies-literature

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