Despite significant advancements in therapy of multiple myeloma (MM) over the past 20 years, most patients experience relapse, necessitating new treatment approaches. This study aims to compare the real-world effectiveness of lenalidomide (LEN)-based triplet therapies, specifically daratumumab (DRD), carfilzomib (KRD), and ixazomib (IRD), in relapsed/refractory multiple myeloma (RRMM).A retrospective registry-based study analyzed 538 RRMM patients undergoing therapy for their first to third relapse. The primary endpoints were overall response rate (ORR), progression-free survival (PFS), and overall survival (OS), with a matching-adjusted indirect comparisons (MAIC) employed to address cohort differences.ORR was highest for DRD at 91.4%, followed by KRD (89.6%) and IRD cohorts (Early-IRD: 79.6%, Late-IRD: 70.8%). Median PFS for DRD was greater at 23.64 months compared to KRD (16.52 months) and IRD groups (Early-IRD: 19.97 months, Late-IRD: 11.57 months). The MAIC confirmed better outcomes for the DRD regimen. High-risk features were not overcome by any of the LEN-based regimens.The findings underscore the superior efficacy of DRD in achieving sustained responses in RRMM patients. The composition of the cohort is a crucial factor, extending beyond selection criteria. This study highlights the importance of real-world evidence in assessing treatment modalities in clinical settings.

• Klíčová slova
• Lenalidomide triplets, Multiple myeloma, Relapsed/refractory, Risk groups,
• MeSH
• chemorezistence MeSH
• dospělí MeSH
• glycin analogy a deriváty   aplikace a dávkování   MeSH
• lenalidomid * aplikace a dávkování   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• lokální recidiva nádoru * farmakoterapie   MeSH
• mnohočetný myelom * farmakoterapie   mortalita   patologie   MeSH
• monoklonální protilátky aplikace a dávkování   terapeutické užití   MeSH
• oligopeptidy aplikace a dávkování   MeSH
• protokoly protinádorové kombinované chemoterapie * terapeutické užití   MeSH
• registrace MeSH
• retrospektivní studie MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• sloučeniny boru aplikace a dávkování   terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika epidemiologie   MeSH
• Názvy látek
• carfilzomib MeSH Prohlížeč
• daratumumab MeSH Prohlížeč
• glycin MeSH
• ixazomib MeSH Prohlížeč
• lenalidomid * MeSH
• monoklonální protilátky MeSH
• oligopeptidy MeSH
• sloučeniny boru MeSH

We performed retrospective analysis of relapsed/refractory multiple myeloma (RRMM) patients previously exposed to daratumumab treated with ixazomib, lenalidomide, dexamethasone (IRd) regimen in real clinical practice. Our aim was to evaluate efficacy of IRd in these patients and select a subset of patients that would benefit from this treatment the most. In total, we analyzed 43 daratumumab-exposed RRMM patients treated in our center. Minimal response or better was achieved by 53.5% of patients from the cohort. Median progression free survival (PFS) was 4.56 months (95% CI: 2.56, 8.03) and median overall survival (OS) was 28.92 months (95% CI: 5.4, NR). Duration of response (DOR) was evaluable in 28 patients and reached a median of 21.3 months (95% CI: 6.85, NR). Next, we evaluated hazard ratios (HR) for OS and PFS. There was improved OS in patients that were not-triple refractory or worse (HR = 0.39, 95%Cl (0.14; 1.10), p = .07) and in patients, that had less than three previous lines of treatment (LOT) (HR = 0.13, 95%Cl (0.03; 0.6) p = .003). Similar to OS, there was improved PFS in patients, that were not triple-refractory or worse (HR = 0.52, 95%Cl (0.25; 1.10), p = .08). We concluded, that the best survival benefit for RRMM patients pretreated with daratumumab to IRd regimen was observed in patients that were not triple-refractory and had less than three previous lines of treatment (LOT). The DOR in these patients was 21.3 months (95% CI: 6.85, NR).

• Klíčová slova
• daratumumab, ixazomib, relapsed/refractory multiple myeloma,
• MeSH
• chemorezistence * MeSH
• dexamethason * aplikace a dávkování   terapeutické užití   MeSH
• dospělí MeSH
• glycin * analogy a deriváty   aplikace a dávkování   terapeutické užití   MeSH
• lenalidomid * aplikace a dávkování   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mnohočetný myelom * farmakoterapie   mortalita   MeSH
• monoklonální protilátky * terapeutické užití   aplikace a dávkování   MeSH
• opakovaná terapie MeSH
• protokoly protinádorové kombinované chemoterapie * terapeutické užití   škodlivé účinky   MeSH
• recidiva MeSH
• retrospektivní studie MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• sloučeniny boru * aplikace a dávkování   terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• daratumumab MeSH Prohlížeč
• dexamethason * MeSH
• glycin * MeSH
• ixazomib MeSH Prohlížeč
• lenalidomid * MeSH
• monoklonální protilátky * MeSH
• sloučeniny boru * MeSH

The development of new drug modalities has been facilitated recently by the introduction of boron as a component of organic compounds, and specifically within a benzoxaborale scaffold. This has enabled exploration of new chemical space and the development of effective compounds targeting a broad range of morbidities, including infections by protozoa, fungi, worms, and bacteria. Most notable is the recent demonstration of a single oral dose cure using acoziborole against African trypanosomiasis. Common and species-/structure-specific interactions between benzoxaboroles and parasite species have emerged and provide vital insights into the mechanisms of cidality, as well as potential challenges in terms of resistance and/or side effects. Here, we discuss the literature specific to benzoxaborole studies in parasitic protists and consider unanswered questions concerning this important new drug class.

• Klíčová slova
• CPSF complex, LeuRS, benzoxaborole, drugs, mode of action, parasites,
• MeSH
• antiparazitární látky farmakologie   terapeutické užití   MeSH
• bor farmakologie   MeSH
• lidé MeSH
• sloučeniny boru * farmakologie   terapeutické užití   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH
• Názvy látek
• antiparazitární látky MeSH
• bor MeSH
• sloučeniny boru * MeSH

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. Median age was 69 years; 14.8% of patients had International Staging System stage III disease; 14.8% had received three prior therapies. Patients received a median of 16 cycles of IDd. In 59 response-evaluable patients, the overall response rate was 64.4%; the confirmed ≥very good partial response (VGPR) rate (primary endpoint) was 30.5%. Rates of ≥VGPR in patient subgroups were: high-risk cytogenetics (n = 15, 26.7%), expanded high-risk cytogenetics (n = 24, 29.2%), aged ≥75 years (n = 12, 16.7%), lenalidomide-refractory (n = 21, 28.6%), and prior PI/IMiD therapy (n = 58, 31.0%). With a median follow-up of 31.6 months, median progression-free survival was 16.8 months (95% confidence interval: 10.1-23.7). Grade ≥3 treatment-emergent adverse events (TEAEs) occurred in 54.1% of patients; 44.3% had serious TEAEs; TEAEs led to dose modifications/reductions/discontinuations in 62.3%/36.1%/16.4%. There were five on-study deaths. Any-grade and grade ≥3 peripheral neuropathy occurred in 18.0% and 1.6% of patients. Quality of life was generally maintained throughout treatment. IDd showed a positive risk-benefit profile in RRMM patients and was active in clinically relevant subgroups with no new safety signals.

• MeSH
• dexamethason * aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• glycin * analogy a deriváty   aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mnohočetný myelom * farmakoterapie   mortalita   patologie   MeSH
• monoklonální protilátky * aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• protokoly protinádorové kombinované chemoterapie * terapeutické užití   škodlivé účinky   aplikace a dávkování   MeSH
• recidiva MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• sloučeniny boru * aplikace a dávkování   terapeutické užití   škodlivé účinky   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky, fáze II MeSH
• multicentrická studie MeSH
• Názvy látek
• daratumumab MeSH Prohlížeč
• dexamethason * MeSH
• glycin * MeSH
• ixazomib MeSH Prohlížeč
• monoklonální protilátky * MeSH
• sloučeniny boru * MeSH

OBJECTIVES: To characterize the impact of prior exposure and refractoriness to lenalidomide or proteasome inhibitors (PIs) on the effectiveness and safety of ixazomib-lenalidomide-dexamethasone (IRd) in relapsed/refractory multiple myeloma (RRMM). METHODS: INSURE is a pooled analysis of adult RRMM patients who had received IRd in ≥2 line of therapy from three studies: INSIGHT MM, UVEA-IXA, and REMIX. RESULTS: Overall, 391/100/68 were lenalidomide-naïve/-exposed/-refractory and 37/411/110 were PI-naïve/-exposed/-refractory. Median duration of therapy (DOT) was 15.3/15.6/4.7 months and median progression-free survival (PFS) was 21.6/25.8/5.6 months in lenalidomide-naïve/exposed/refractory patients. Median DOT and PFS in PI-naïve/exposed/refractory patients were 20.4/15.2/6.9 months and not reached/19.8/11.4 months, respectively. The proportion of lenalidomide-naïve/exposed/refractory patients in INSIGHT and UVEA-IXA who discontinued a study drug due to adverse events (AEs) was ixazomib, 31.6/28.2/28.0% and 18.6/6.7/10.5%; lenalidomide, 21.9/28.2/16.0% and 16.1/6.7/10.5%; dexamethasone, 18.4/20.5/16.0% and 10.6/0/10.5%, respectively. The proportion of PI-naïve/exposed/refractory patients in INSIGHT and UVEA-IXA who discontinued a study drug due to AEs was: ixazomib, 44.4/28.8/27.8% and 22.2/16.7/15.7%; lenalidomide, 33.3/22.0/19.4% and 16.7/15.9/11.8%; dexamethasone, 33.3/17.4/16.7% and 16.7/9.5/7.8%, respectively. REMIX AE discontinuation rates were unavailable. CONCLUSION: IRd appeared to be effective in RRMM patients in routine clinical practice regardless of prior lenalidomide or PI exposure, with better outcomes seen in lenalidomide- and/or PI-nonrefractory versus refractory patients.

• Klíčová slova
• effectiveness, ixazomib, lenalidomide, multiple myeloma, prior treatment exposure, proteasome inhibitor, relapsed/refractory,
• MeSH
• chemorezistence * MeSH
• dexamethason * aplikace a dávkování   škodlivé účinky   MeSH
• dospělí MeSH
• glycin * analogy a deriváty   aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• inhibitory proteasomu * aplikace a dávkování   terapeutické užití   škodlivé účinky   MeSH
• lenalidomid * aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mnohočetný myelom * farmakoterapie   mortalita   diagnóza   MeSH
• opakovaná terapie MeSH
• protokoly protinádorové kombinované chemoterapie * škodlivé účinky   terapeutické užití   aplikace a dávkování   MeSH
• recidiva MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• sloučeniny boru * aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• dexamethason * MeSH
• glycin * MeSH
• inhibitory proteasomu * MeSH
• ixazomib MeSH Prohlížeč
• lenalidomid * MeSH
• sloučeniny boru * MeSH

Aim: We pooled data from three observational studies (INSIGHT MM, UVEA-IXA and REMIX) to investigate the real-world effectiveness of ixazomib-lenalidomide-dexamethasone (IRd) in relapsed/refractory myeloma. Materials & methods: INSIGHT MM was a prospective study conducted in countries across Europe, Asia and North/Latin America while UVEA-IXA and REMIX were multicenter, retrospective/prospective studies conducted in Europe. Patients who had received IRd as ≥2nd line of therapy were analyzed. Primary outcomes were time-to-next treatment (TTNT) and progression-free survival (PFS). Results: Overall, 564 patients were included (median follow-up: 18.5 months). Median TTNT and PFS were 18.4 and 19.9 months; both outcomes were numerically longer for earlier versus later lines. Median treatment duration was 14.0 months. Overall response rate was 64.6%. No new safety concerns were noted. Conclusion: The effectiveness of IRd in routine practice appears similar to the efficacy observed in TOURMALINE-MM1. IRd benefit in earlier versus later lines was consistent with previous reports.

• Klíčová slova
• IRd, effectiveness, ixazomib, ixazomib-lenalidomide-dexamethasone, multiple myeloma, pooled analysis, progression-free survival, proteasome inhibitor, relapsed/refractory, routine clinical practice, time-to-next treatment,
• MeSH
• dexamethason terapeutické užití   MeSH
• glycin * analogy a deriváty   MeSH
• lenalidomid terapeutické užití   MeSH
• lidé MeSH
• mnohočetný myelom * farmakoterapie   MeSH
• multicentrické studie jako téma MeSH
• prospektivní studie MeSH
• protokoly protinádorové kombinované chemoterapie škodlivé účinky   terapeutické užití   MeSH
• retrospektivní studie MeSH
• sloučeniny boru terapeutické užití   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• dexamethason MeSH
• glycin * MeSH
• ixazomib MeSH Prohlížeč
• lenalidomid MeSH
• sloučeniny boru MeSH

BACKGROUND: Waldenström's macroglobulinemia (WM) is a very rare disease with an incidence 10times lower than that of multiple myeloma. The incidence of WM is also significantly lower than that of the other CD20+ low-grade lymphomas. The rarity of WM is the reason why registration studies of new drugs used for multiple myeloma or the more common CD20+low-grade lymphomas do not cover WM. Data on the efficacy of proteasome inhibitors in WM can be drawn from case descriptions, small series of patients and a few phase II clinical trials. The aim of this case report and review is to inform about our experience with the treatment of WM with bortezomib and then ixazomib and to present an overview of publications on proteasome inhibitors in WM. CASE: We describe a patient who, after 8 years of asymptomatic course of WM, had the first fulminant progression with severe pancytopenia at the age of 74 years. For the first-line treatment, he was treated with dexamethasone and rituximab, and after alleviation of pancytopenia, with bendamustine. Monoclonal immunoglobulin IgM (M-IgM) dropped from 40 g/L to the level as low as 6.9 g/L, which meant partial remission (PR) accompanied with normal blood count values. After 29 months of PR, the patient experienced a fulminant relapse of WM, accompanied by severe pancytopenia. Rituximab and dexamethasone were the backbone of treatment with addition of bortezomib for its significantly lower myelosuppression compared to alkylating agents. Treatment with the triple combination of bortezomib, rituximab, and dexamethasone was effective, however, after five cycles, bortezomib had to be discontinued for severe neurotoxicity. The sixth cycle contained rituximab and dexamethasone, and from the seventh cycle, ixazomib was started. The patient underwent seven cycles (months) of treatment consisting of ixazomib, rituximab and dexamethasone (14 cycles of treatment in total). RESULTS: M-IgM decreased from 30 g/L at the beginning of the treatment to 4.0 g/L at the end of treatment and further decreased to a value of 2.8 g/L at the eighth month after the end of the treatment. A deeper decrease in M-IgM than after first-line treatment was achieved and the patient now meets the criteria for a very good partial remission. CONCLUSION: According to the described experience and according to the review of publications evaluating proteasome inhibitors in WM, the combination of ixazomib with rituximab and dexamethasone excels with very good tolerance and high efficacy, approaching the efficacy of the combination of rituximab with bendamustine. This combination has its place particularly in patients with WM and cytopenia.

• Klíčová slova
• Waldenström’s macroglobulinemia, bortezomib, ixazomib,
• MeSH
• bortezomib * terapeutické užití   aplikace a dávkování   MeSH
• dexamethason * aplikace a dávkování   terapeutické užití   MeSH
• glycin * analogy a deriváty   terapeutické užití   aplikace a dávkování   MeSH
• inhibitory proteasomu * terapeutické užití   MeSH
• lidé MeSH
• protokoly protinádorové kombinované chemoterapie * terapeutické užití   MeSH
• recidiva MeSH
• rituximab * terapeutické užití   aplikace a dávkování   MeSH
• senioři MeSH
• sloučeniny boru * terapeutické užití   aplikace a dávkování   MeSH
• Waldenströmova makroglobulinemie * farmakoterapie   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• Publikační typ
• časopisecké články MeSH
• kazuistiky MeSH
• přehledy MeSH
• Názvy látek
• bortezomib * MeSH
• dexamethason * MeSH
• glycin * MeSH
• inhibitory proteasomu * MeSH
• ixazomib MeSH Prohlížeč
• rituximab * MeSH
• sloučeniny boru * MeSH

This review describes recent progress in the design and development of inhibitors of human carbonic anhydrase IX (CA IX) based on space-filling carborane and cobalt bis(dicarbollide) clusters. CA IX enzyme is known to play a crucial role in cancer cell proliferation and metastases. The new class of potent and selective CA IX inhibitors combines the structural motif of a bulky inorganic cluster with an alkylsulfamido or alkylsulfonamido anchor group for Zn2+ ion in the enzyme active site. Detailed structure-activity relationship (SAR) studies of a large series containing 50 compounds uncovered structural features of the cluster-containing inhibitors that are important for efficient and selective inhibition of CA IX activity. Preclinical evaluation of selected compounds revealed low toxicity, favorable pharmacokinetics and ability to reduce tumor growth. Cluster-containing inhibitors of CA IX can thus be considered as promising candidates for drug development and/or for combination therapy in boron neutron capture therapy (BNCT).

• Klíčová slova
• SAR studies, carbonic anhydrase, carborane, cobalt bis(dicarbollide), crystallography, enzyme inhibition,
• MeSH
• inhibitory karboanhydras chemická syntéza   chemie   metabolismus   terapeutické užití   MeSH
• karboanhydrasa IX antagonisté a inhibitory   metabolismus   MeSH
• lidé MeSH
• nádory farmakoterapie   MeSH
• organokovové sloučeniny chemie   MeSH
• simulace molekulární dynamiky MeSH
• sloučeniny boru chemie   metabolismus   terapeutické užití   MeSH
• sulfonamidy chemie   MeSH
• vazebná místa MeSH
• vztahy mezi strukturou a aktivitou MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• přehledy MeSH
• Názvy látek
• cobaltabisdicarbollide anion MeSH Prohlížeč
• inhibitory karboanhydras MeSH
• karboanhydrasa IX MeSH
• organokovové sloučeniny MeSH
• sloučeniny boru MeSH
• sulfonamidy MeSH

Multiple available combinations of proteasome inhibitors, immunomodulators (IMIDs), and monoclonal antibodies are shifting the relapsed/refractory multiple myeloma (RRMM) treatment landscape. Lack of head-to-head trials of triplet regimens highlights the need for real-world (RW) evidence. We conducted an RW comparative effectiveness analysis of bortezomib (V), carfilzomib (K), ixazomib (I), and daratumumab (D) combined with either lenalidomide or pomalidomide plus dexamethasone (Rd or Pd) in RRMM. A retrospective cohort of patients initiating triplet regimens in line of therapy (LOT) ≥ 2 on/after 1/1/2014 was followed between 1/2007 and 3/2018 in Optum's deidentified US electronic health records database. Time to next treatment (TTNT) was estimated using Kaplan-Meier methods; regimens were compared using covariate-adjusted Cox proportional hazard models. Seven hundred forty-one patients (820 patient LOTs) with an Rd backbone (VRd, n = 349; KRd, n = 218; DRd, n = 99; IRd, n = 154) and 348 patients (392 patient LOTs) with a Pd backbone (VPd, n = 52; KPd, n = 146; DPd, n = 149; IPd, n = 45) in LOTs ≥2 were identified. More patients ≥75 years received IRd (39.6%), IPd (37.8%), and VRd (36.7%) than other triplets. More patients receiving VRd/VPd were in LOT2 vs other triplets. Unadjusted median TTNT in LOT ≥ 2: VRd, 13.9; KRd, 8.7; IRd, 11.4; DRd, not estimable (NE); and VPd, 12.0; KPd, 6.7; IPd, 9.5 months; DPd, NE. In covariate-adjusted analysis, only KRd vs DRd was associated with a significantly higher risk of next LOT initiation/death (HR 1.72; P = 0.0142); no Pd triplet was significantly different vs DPd in LOT ≥ 2. Our data highlight important efficacy/effectiveness gaps between results observed in phase 3 clinical trials and those realized in the RW.

• Klíčová slova
• Bortezomib, Carfilzomib, Daratumumab, Ixazomib, Lenalidomide, Pomalidomide, Proteasome inhibitor triplet therapy, Real-world, Relapsed refractory multiple myeloma,
• MeSH
• bortezomib terapeutické užití   MeSH
• glycin analogy a deriváty   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• lokální recidiva nádoru farmakoterapie   MeSH
• mnohočetný myelom farmakoterapie   MeSH
• monoklonální protilátky terapeutické užití   MeSH
• oligopeptidy terapeutické užití   MeSH
• protokoly protinádorové kombinované chemoterapie terapeutické užití   MeSH
• retrospektivní studie MeSH
• senioři MeSH
• sloučeniny boru terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• srovnávací studie MeSH
• Názvy látek
• bortezomib MeSH
• carfilzomib MeSH Prohlížeč
• daratumumab MeSH Prohlížeč
• glycin MeSH
• ixazomib MeSH Prohlížeč
• monoklonální protilátky MeSH
• oligopeptidy MeSH
• sloučeniny boru MeSH

BACKGROUND: We have performed a head to head comparison of all-oral triplet combination of ixazomib, lenalidomide and dexamethasone (IRD) versus lenalidomide and dexamethasone (RD) in patients with relapsed and refractory multiple myeloma (RRMM) in the routine clinical practice. METHODS: A total of 344 patients treated with IRD (N = 127) or RD (N = 217) were selected for analysis from the Czech Registry of Monoclonal Gammopathies (RMG). Descriptive statistics were used to assess patient's characteristics associated with the respective therapy. The primary endpoint was progression free survival (PFS), secondary end points included response rates and overall survival (OS). Survival endpoints were plotted using Kaplan-Meier methodology at 95% Greenwood confidence interval. Univariable and multivariable Cox proportional hazards models were used to evaluate the effect of treatment regimens and the significance of uneven variables. Statistical tests were performed at significance level 0.05. RESULTS: In the whole cohort, median PFS for IRD was 17.5 and for RD was 11.5 months favoring the all-oral triplet, p = 0.005; in patients within relapse 1-3, the median PFS was 23.1 vs 11.6 months, p = 0.001. The hazard ratio for PFS was 0.67 (95% confidence interval [CI] 0.51-0.89, p = 0.006). The PFS advantage translated into improved OS for patients treated with IRD, median 36.6 months vs 26.0 months (p = 0.008). The overall response rate (ORR) was 73.0% in the IRD group vs 66.2% in the RD group with a complete response rate (CR) of 11.1% vs 8.8%, and very good partial response (VGPR) 22.2% vs 13.9%, IRD vs RD respectively. The IRD regimen was most beneficial in patients ≤75 years with ISS I, II, and in the first and second relapse. Patients with the presence of extramedullary disease did not benefit from IRD treatment (median PFS 6.5 months). Both regimens were well tolerated, and the incidence of total as well as grade 3/4 toxicities was comparable. CONCLUSIONS: Our analysis confirms the results of the TOURMALINE-MM1 study and shows benefit of all-oral triplet IRD treatment versus RD doublet. It demonstrates that the addition of ixazomib to RD improves key survival endpoints in patients with RRMM in a routine clinical setting.

• Klíčová slova
• Clinical trial, Dexamethasone, Ixazomib, Lenalidomide, Multiple myeloma, Patient registry,
• MeSH
• aplikace orální MeSH
• chemorezistence MeSH
• dexamethason farmakologie   terapeutické užití   MeSH
• doba přežití bez progrese choroby MeSH
• dospělí MeSH
• glycin analogy a deriváty   farmakologie   terapeutické užití   MeSH
• Kaplanův-Meierův odhad MeSH
• lenalidomid farmakologie   terapeutické užití   MeSH
• lidé středního věku MeSH
• lidé MeSH
• lokální recidiva nádoru farmakoterapie   mortalita   patologie   MeSH
• mnohočetný myelom farmakoterapie   mortalita   patologie   MeSH
• následné studie MeSH
• prospektivní studie MeSH
• protokoly protinádorové kombinované chemoterapie farmakologie   terapeutické užití   MeSH
• registrace statistika a číselné údaje   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• sloučeniny boru farmakologie   terapeutické užití   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• srovnávací studie MeSH
• Geografické názvy
• Česká republika epidemiologie   MeSH
• Názvy látek
• dexamethason MeSH
• glycin MeSH
• ixazomib MeSH Prohlížeč
• lenalidomid MeSH
• sloučeniny boru MeSH