Publications by authors named "Jeffrey Matous"

Peripheral neuropathy (PN) is a significant cause of morbidity associated with Waldenström macroglobulinemia (WM). The phase 3 ASPEN study compared the efficacy and safety of zanubrutinib with ibrutinib in patients with WM. This ad hoc analysis examined treatment outcomes with zanubrutinib or ibrutinib on PN symptoms associated with WM in patients enrolled in ASPEN.

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  • The study focused on patients with relapsed or refractory multiple myeloma (RRMM) who previously received lenalidomide, examining the effectiveness of a treatment combination involving pomalidomide, daratumumab, and dexamethasone (DPd).
  • During the trial, a total of 112 patients were treated, with a median overall survival (OS) of 56.7 months after 41.9 months of follow-up, showing promising results.
  • The treatment was generally safe, with adverse events leading to discontinuation in a small percentage of patients, suggesting that this combination therapy could be a viable option for RRMM patients needing further treatment post-lenalidomide.
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Novel therapies have improved outcomes for multiple myeloma (MM) patients, but most ultimately relapse, making treatment decisions for relapsed/refractory MM (RRMM) patients increasingly challenging. We report the final analysis of a single-arm, phase 2 study evaluating the oral proteasome inhibitor (PI) ixazomib combined with daratumumab and dexamethasone (IDd; NCT03439293). Sixty-one RRMM patients (ixazomib/daratumumab-naïve; 1-3 prior therapies) were enrolled to receive IDd (28-day cycles) until disease progression/unacceptable toxicity.

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  • The phase 3 ASPEN trial compared the effectiveness of two BTK inhibitors, zanubrutinib and ibrutinib, in treating Waldenström macroglobulinemia, analyzing genetic mutations' impact on treatment response.
  • The study found that patients with mutations in CXCR4 and TP53 had poorer responses and survival rates but those treated with zanubrutinib generally showed better outcomes than those given ibrutinib.
  • Overall, the research indicated that zanubrutinib offers improved clinical outcomes for patients with specific mutations compared to ibrutinib, highlighting the importance of genetic testing in treatment decision-making.
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  • The phase III ASPEN study showed that zanubrutinib is as effective as ibrutinib but has better safety for treating patients with Waldenström macroglobulinemia (WM).
  • In a long-term follow-up, zanubrutinib demonstrated higher rates of very good partial response and complete response compared to ibrutinib in both cohorts of WM patients.
  • Adverse events like diarrhea, muscle spasms, and hypertension were more common with ibrutinib, while zanubrutinib had a lower risk of treatment-related discontinuation.
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  • The discovery of the MYD88 (L265P) mutation prompted studies into BTK inhibitors for treating Waldenström macroglobulinemia (WM).
  • Ibrutinib was the first BTK inhibitor approved following positive results from a phase II trial for patients who had relapsed or were refractory to treatment.
  • The iNNOVATE study tested the effectiveness of ibrutinib with rituximab versus rituximab alone in various patient groups, while the ASPEN trial compared zanubrutinib with ibrutinib specifically in patients with the MYD88 mutation.
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  • The Consensus Panel 1 (CP1) of IWWM-11 focused on updating guidelines for managing symptomatic, treatment-naïve Waldenstrom's Macroglobulinemia (WM) patients, asserting that watchful waiting is best for asymptomatic cases.
  • Current first-line treatments include chemoimmunotherapy regimens like DRC and Benda-R, which are effective, usually well-tolerated, and cost-effective; covalent BTK inhibitors like zanubrutinib also provide a viable alternative, showing fewer side effects and better remissions compared to ibrutinib.
  • The panel also noted the importance of testing for MYD88 and CXCR4 mutations prior to treatment, as these can influence the effectiveness of certain
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ALLO-715 is a first-in-class, allogeneic, anti-BCMA CAR T cell therapy engineered to abrogate graft-versus-host disease and minimize CAR T rejection. We evaluated escalating doses of ALLO-715 after lymphodepletion with an anti-CD52 antibody (ALLO-647)-containing regimen in 43 patients with relapsed/refractory multiple myeloma as part A of the ongoing first-in-human phase 1 UNIVERSAL trial. Primary objectives included determination of the safety and tolerability of ALLO-715 and the safety profile of the ALLO-647-containing lymphodepletion regimen.

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  • Patients with smoldering multiple myeloma usually wait for their condition to get worse before starting treatment, but treating them early might help them live better.
  • A study tested a combination of three medicines (elotuzumab, lenalidomide, and dexamethasone) on patients with a more serious form of the disease and looked at their blood samples to see how their immune cells changed.
  • The results showed that early treatment was safe and might help, and how similar a patient’s immune system is to healthy people can help predict how well they will do with the treatment.
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Patients with relapsed/refractory multiple myeloma (RRMM) need proven subsequent therapies after early-line lenalidomide treatment failure. The phase 2 MM-014 trial (NCT01946477) investigated pomalidomide, dexamethasone, and daratumumab after 1 to 2 prior treatment lines (62.5%, 1 prior line) in patients with RRMM and prior lenalidomide (75.

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Purpose: The double-blind, randomized, placebo-controlled phase III iNNOVATE study showed sustained efficacy of ibrutinib-rituximab in Waldenström's macroglobulinemia (WM). Here, we present the final analysis from iNNOVATE.

Methods: Patients had confirmed symptomatic WM, either previously untreated or previously treated; patients with prior rituximab had at least a minor response to their last rituximab-based regimen.

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Purpose: The first report from the open-label substudy of the phase III iNNOVATE study (PCYC-1127; NCT02165397) demonstrated that single-agent ibrutinib was efficacious and well tolerated in patients with heavily pretreated, rituximab-refractory Waldenström macroglobulinemia. Results from the final analysis are now reported.

Patients And Methods: Ibrutinib 420 mg was administered once daily to patients ( = 31) who failed to achieve at least a minor response (MR) or who relapsed <12 months after their last rituximab-containing therapy.

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The maximum tolerated dose of the panobinostat and carfilzomib combination in patients with relapsed/refractory multiple myeloma (RRMM) was not reached in our previous dose-escalation study. We report additional dose levels in the phase I/II, single-arm, multicenter, standard 3 + 3 dose-escalation expansion-cohort study (NCT01496118). Patients with RRMM were treated with panobinostat 30 mg, carfilzomib 20/56 mg/m (N = 3), or panobinostat 20 mg, carfilzomib 20/56 mg/m (N = 33).

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  • Bruton tyrosine kinase (BTK) inhibition is an important treatment for Waldenström macroglobulinemia (WM), and the ASPEN study compared ibrutinib and zanubrutinib, two BTK inhibitors, in patients with the disease.
  • In the study, while no patients achieved a complete response, a similar percentage of patients (28% with zanubrutinib vs. 19% with ibrutinib) reached a very good partial response, indicating both drugs are effective but showing no significant difference between them.
  • Zanubrutinib showed a trend toward better response quality and lower rates of adverse effects, particularly cardiovascular issues, although some patients experienced higher rates of neutropenia compared to
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Patients with multiple myeloma who have relapsed after or become refractory to lenalidomide in early treatment lines represent a clinically important population in need of effective therapies. The safety and efficacy of pomalidomide, low-dose dexamethasone, and daratumumab was evaluated in lenalidomide-pretreated patients with relapsed or refractory multiple myeloma (RRMM) after one to two prior treatment lines in the phase 2 MM-014 study. Patients received pomalidomide 4 mg daily from days 1-21 and dexamethasone 40 mg weekly (28-day cycles).

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Patients with multiple myeloma (MM) inevitably relapse on initial treatment regimens, and novel combination therapies are needed. Ibrutinib is a first-in-class, once-daily inhibitor of Bruton's tyrosine kinase, an enzyme implicated in growth and survival of MM cells. Preclinical data suggest supra-additivity or synergy between ibrutinib and proteasome inhibitors (PIs) against MM.

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Purpose: Observation is the current standard of care for smoldering multiple myeloma. We hypothesized that early intervention with lenalidomide could delay progression to symptomatic multiple myeloma.

Methods: We conducted a randomized trial that assessed the efficacy of single-agent lenalidomide compared with observation in patients with intermediate- or high-risk smoldering multiple myeloma.

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Duvelisib, a potent δ- and γ-PI3K inhibitor, is a potential therapeutic for hematologic malignancies. Rituximab and bendamustine have demonstrated activity in non-Hodgkin lymphoma (NHL) and chronic lymphocytic leukemia (CLL). Combining duvelisib with either rituximab alone or rituximab and bendamustine may improve response rates and remission durability.

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Background: Single-agent ibrutinib has shown substantial activity in patients with relapsed Waldenström's macroglobulinemia, a rare form of B-cell lymphoma. We evaluated the effect of adding ibrutinib to rituximab in patients with this disease, both in those who had not received previous treatment and in those with disease recurrence.

Methods: We randomly assigned 150 symptomatic patients to receive ibrutinib plus rituximab or placebo plus rituximab.

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Autologous stem cell transplantation (ASCT) is standard of care for patients with Hodgkin lymphoma (HL) who have relapsed/refractory disease after frontline chemotherapy. Achievement of complete remission (CR) with pre-ASCT salvage chemotherapy predicts favorable outcomes post-ASCT. This phase 1/2 study evaluated the combination of brentuximab vedotin (BV) plus bendamustine as a first salvage regimen in relapsed/refractory HL.

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This phase 1, dose-finding study investigated ibrutinib and carfilzomib ± dexamethasone in patients with relapsed or relapsed/refractory multiple myeloma (≥2 lines of therapy including bortezomib and an immunomodulatory agent). Of 43 patients enrolled, 74% were refractory to bortezomib and 23% had high-risk cytogenetics. No dose-limiting toxicities were observed.

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Pomalidomide is an immunomodulatory drug for treatment of relapsed or refractory multiple myeloma (rrMM) in patients who often have comorbid renal conditions. To assess the impact of renal impairment on pomalidomide exposure, a population pharmacokinetics (PPK) model of pomalidomide in rrMM patients with various degrees of impaired renal function was developed. Intensive and sparse pomalidomide concentration data collected from two clinical studies in rrMM patients with normal renal function, moderately impaired renal function, severely impaired renal function not requiring dialysis, and with severely impaired renal function requiring dialysis were pooled over the dose range of 2 to 4 mg, to assess specifically the influence of the impaired renal function as a categorical variable and a continuous variable on pomalidomide clearance and plasma exposure.

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