RESUMO
Melphalan flufenamide (melflufen), a first-in-class, alkylating peptide-drug conjugate, demonstrated clinical benefit in combination with dexamethasone in triple-class refractory multiple myeloma (MM). The phase I/IIa ANCHOR study evaluated melflufen (30 or 40 mg) and dexamethasone (40 mg with daratumumab; 20 mg followed by 40 mg with bortezomib; dose reduced if aged ≥75 years) in triplet combination with daratumumab (16 mg/kg; daratumumab arm) or bortezomib (1.3 mg/m2; bortezomib arm) in patients with relapsed/refractory MM refractory to an immunomodulatory agent and/or a proteasome inhibitor and who had received one to four prior lines of therapy. Primary objectives were to determine the optimal dose of melflufen in triplet combination (phase I) and overall response rate (phase IIa). In total, 33 patients were treated in the daratumumab arm and 23 patients received therapy in the bortezomib arm. No dose-limiting toxicities were reported at either melflufen dose level with either combination. With both triplet regimens, the most common grade ≥3 treatment-emergent adverse events were thrombocytopenia and neutropenia; thrombocytopenia was the most common treatment-emergent adverse event leading to treatment discontinuation. In the daratumumab arm, patients receiving melflufen 30 mg remained on treatment longer than those receiving the 40-mg dose. In the daratumumab arm, the overall response rate was 73% and median progression-free survival was 12.9 months. Notably, in the bortezomib arm, the overall response rate was 78% and median progression-free survival was 14.7 months. Considering the totality of the data, melflufen 30 mg was established as the recommended dose for use with dexamethasone and daratumumab or bortezomib for future studies in relapsed/refractory MM.
Assuntos
Anticorpos Monoclonais , Melfalan , Mieloma Múltiplo , Neoplasias de Plasmócitos , Neutropenia , Fenilalanina , Trombocitopenia , Humanos , Bortezomib/uso terapêutico , Dexametasona/uso terapêutico , Melfalan/análogos & derivados , Mieloma Múltiplo/diagnóstico , Mieloma Múltiplo/tratamento farmacológico , Neutropenia/induzido quimicamente , Fenilalanina/análogos & derivados , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversosRESUMO
Melphalan flufenamide (melflufen), a first-in-class alkylating peptide-drug conjugate, plus dexamethasone was approved in Europe for use in patients with triple-class refractory relapsed/refractory multiple myeloma (RRMM) with ≥3 prior lines of therapy and without prior autologous stem cell transplantation (ASCT) or with a time to progression >36 months after prior ASCT. The randomized LIGHTHOUSE study (NCT04649060) assessed melflufen plus daratumumab and dexamethasone (melflufen group) versus daratumumab in patients with RRMM with disease refractory to an immunomodulatory agent and a proteasome inhibitor or who had received ≥3 prior lines of therapy including an immunomodulatory agent and a proteasome inhibitor. A partial clinical hold issued by the US Food and Drug Administration for all melflufen studies led to financial constraints and premature study closure on February 23rd 2022 (data cut-off date). In total, 54 of 240 planned patients were randomized (melflufen group, N=27; daratumumab group, N=27). Median progression-free survival (PFS) was not reached in the melflufen group versus 4.9 months in the daratumumab group (Hazard Ratio: 0.18 [95% Confidence Interval, 0.05-0.65]; P=0.0032) at a median follow-up time of 7.1 and 6.6 months, respectively. Overall response rate (ORR) was 59% in the melflufen group versus 30% in the daratumumab group (P=0.0300). The most common grade ≥3 treatment-emergent adverse events in the melflufen group versus daratumumab group were neutropenia (50% vs. 12%), thrombocytopenia (50% vs. 8%), and anemia (32% vs. 19%). Melflufen plus daratumumab and dexamethasone demonstrated superior PFS and ORR versus daratumumab in RRMM and a safety profile comparable to previously published melflufen studies.
Assuntos
Anticorpos Monoclonais , Transplante de Células-Tronco Hematopoéticas , Melfalan , Mieloma Múltiplo , Neoplasias de Plasmócitos , Neutropenia , Fenilalanina , Humanos , Dexametasona/uso terapêutico , Melfalan/análogos & derivados , Mieloma Múltiplo/diagnóstico , Mieloma Múltiplo/tratamento farmacológico , Fenilalanina/análogos & derivados , Inibidores de Proteassoma , Transplante Autólogo , Estados Unidos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversosRESUMO
Melphalan flufenamide (melflufen), a first-in-class alkylating peptide-drug conjugate, plus dexamethasone demonstrated superior progression-free survival (PFS), but not overall survival (OS), versus pomalidomide plus dexamethasone in relapsed/refractory multiple myeloma in the OCEAN study. Time to progression (TTP) <36 months after a prior autologous stem cell transplantation (ASCT) was a negative prognostic factor for OS with melflufen. This post hoc exploratory analysis evaluated patients refractory to prior alkylators (e.g., cyclophosphamide and melphalan) in OCEAN. In 153 patients refractory to prior alkylators (melflufen, n = 78; pomalidomide, n = 75), the melflufen and pomalidomide arms had similar median PFS (5.6 months [95% CI, 4.2-8.3] vs. 4.7 months [95% CI, 3.1-7.3]; hazard ratio [HR], 0.92 [95% CI, 0.63-1.33]) and OS (23.4 months [95% CI, 14.4-31.7] vs. 20.0 months [95% CI, 12.0-28.7]; HR, 0.92 [95% CI, 0.62-1.38]). Among alkylator-refractory patients with a TTP ≥ 36 months after a prior ASCT or no prior ASCT (melflufen, n = 54; pomalidomide, n = 53), the observed median PFS and OS were longer in the melflufen arm than the pomalidomide arm. The safety profile of melflufen was consistent with previous reports. These results suggest that melflufen is safe and effective in patients with alkylator-refractory disease, suggesting differentiated activity from other alkylators.
Assuntos
Transplante de Células-Tronco Hematopoéticas , Melfalan/análogos & derivados , Mieloma Múltiplo , Fenilalanina/análogos & derivados , Talidomida/análogos & derivados , Humanos , Mieloma Múltiplo/diagnóstico , Mieloma Múltiplo/tratamento farmacológico , Melfalan/uso terapêutico , Alquilantes/uso terapêutico , Dexametasona/efeitos adversos , Transplante Autólogo , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversosRESUMO
The aim of this study was to investigate long-term outcome following first-line therapy in consecutive chronic lymphocytic leukemia (CLL) patients in a well-defined geographic area: Sweden. All patients diagnosed with CLL (2007-2013) (n=3672) were identified from national registries, screening of patient files identified all (100%) treated first line (n=1053) and for those, an in-depth analysis was performed. End points were overall response rate, progression-free survival (PFS), overall survival (OS), and safety. Median age was 71 years; 53% had Rai stage III-IV and 97% had performance status grade 0-2. Fluorescence in situ hybridization (FISH) was performed in 57% of patients: 15% had del(17p). Chlorambucil + prednisone was used in 39% (5% also received rituximab). Fludarabine+cyclophosphamide+rituximab or fludarabine+cyclophosphamide was used in 43% and bendamustine + rituximab in 6%. Overall response rate was 64%; chlorambucil 43%, fludarabine+cyclophosphamide+rituximab 84%, fludarabine+cyclophosphamide 75% and bendamustine + rituximab 75%. Median PFS and OS was 24 and 58 months, respectively, both were significantly associated (multivariate analysis) with type of treatment, del(17p), performance status, gender, age and geographical region (OS only). Chlorambucil-treated patients had a median PFS and OS of only 9 and 33 months, respectively. Chlorambucil usage declined gradually throughout the study period, but one-third of patients still received chlorambucil + rituximab in 2013. Infections ≥grade III were significantly associated with treatment; chlorambucil 19% versus fludarabine+cyclophosphamide+rituximab 30%. Richter transformation occurred in 5.5% of the patients, equally distributed across therapies. This is the largest retrospective, real-world cohort of consecutive first-line treated CLL patients with a complete follow up. In elderly patients, an unmet need for more effective, well-tolerated therapies was identified.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Leucemia Linfocítica Crônica de Células B , Sistema de Registros , Adulto , Idoso , Idoso de 80 Anos ou mais , Cloridrato de Bendamustina/administração & dosagem , Clorambucila/administração & dosagem , Deleção Cromossômica , Cromossomos Humanos Par 17/genética , Cromossomos Humanos Par 17/metabolismo , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/genética , Leucemia Linfocítica Crônica de Células B/metabolismo , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Prednisolona/administração & dosagem , Estudos Retrospectivos , Rituximab/administração & dosagem , Taxa de Sobrevida , Suécia/epidemiologia , Vidarabina/administração & dosagem , Vidarabina/análogos & derivadosAssuntos
Protocolos de Quimioterapia Combinada Antineoplásica , Dexametasona , Mieloma Múltiplo , Qualidade de Vida , Mieloma Múltiplo/tratamento farmacológico , Humanos , Dexametasona/uso terapêutico , Dexametasona/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Fenilalanina/uso terapêutico , Fenilalanina/análogos & derivados , Feminino , Masculino , Resistencia a Medicamentos Antineoplásicos , Resultado do Tratamento , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva , Pessoa de Meia-Idade , IdosoRESUMO
Ibrutinib, a Bruton's tyrosine kinase inhibitor is approved for relapsed/refractory and del(17p)/TP53 mutated chronic lymphocytic leukemia. Discrepancies between clinical trials and routine health-care are commonly observed in oncology. Herein we report real-world results for 95 poor prognosis Swedish patients treated with ibrutinib in a compassionate use program. Ninety-five consecutive patients (93 chronic lymphocytic leukemia, 2 small lymphocytic leukemia) were included in the study between May 2014 and May 2015. The median age was 69 years. 63% had del(17p)/TP53 mutation, 65% had Rai stage III/IV, 28% had lymphadenopathy ≥10cm. Patients received ibrutinib 420 mg once daily until progression. At a median follow-up of 10.2 months, the overall response rate was 84% (consistent among subgroups) and 77% remained progression-free. Progression-free survival and overall survival were significantly shorter in patients with del(17p)/TP53 mutation (P=0.017 and P=0.027, log-rank test); no other factor was significant in Cox proportional regression hazards model. Ibrutinib was well tolerated. Hematomas occurred in 46% of patients without any major bleeding. Seven patients had Richter's transformation. This real-world analysis on consecutive chronic lymphocytic leukemia patients from a well-defined geographical region shows the efficacy and safety of ibrutinib to be similar to that of pivotal trials. Yet, del(17p)/TP53 mutation remains a therapeutic challenge. Since not more than half of our patients would have qualified for the pivotal ibrutinib trial (RESONATE), our study emphasizes that real-world results should be carefully considered in future with regards to new agents and new indications in chronic lymphocytic leukemia.
Assuntos
Antineoplásicos/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/patologia , Inibidores de Proteínas Quinases/uso terapêutico , Pirazóis/uso terapêutico , Pirimidinas/uso terapêutico , Adenina/análogos & derivados , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Aberrações Cromossômicas , Ensaios de Uso Compassivo , Progressão da Doença , Resistencia a Medicamentos Antineoplásicos , Feminino , Humanos , Estimativa de Kaplan-Meier , Leucemia Linfocítica Crônica de Células B/genética , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Piperidinas , Modelos de Riscos Proporcionais , Inibidores de Proteínas Quinases/administração & dosagem , Inibidores de Proteínas Quinases/efeitos adversos , Pirazóis/administração & dosagem , Pirazóis/efeitos adversos , Pirimidinas/administração & dosagem , Pirimidinas/efeitos adversos , Recidiva , Retratamento , Estudos Retrospectivos , Suécia , Resultado do TratamentoRESUMO
We report the largest retrospective, phase IV non-interventional, observational study of ofatumumab therapy in heavily pre-treated patients with poor-prognosis chronic lymphocytic leukemia. Total number of patients was 103; median age was 65 years (range 39-85). Median number of prior lines of therapy was 4 (range 1-13), including, in most cases, rituximab-, fludarabine- and alemtuzumab-based regimens; 13 patients had been allografted. Of 113 adverse events, 28 (29%) were considered to be directly related to ofatumumab. Grade 3-4 toxicities included neutropenia (10%), thrombocytopenia (5%), anemia (3%), pneumonia (17%), and fever (3%). Two heavily pre-treated patients developed progressive multifocal leukoencephalopathy. On an intention-to-treat analysis, the overall response rate was 22% (3 complete response, 1 incomplete complete response). Median progression-free and overall survival times were 5 and 11 months, respectively. This study confirms in a daily-life setting the feasibility and acceptable toxicity of ofatumumab treatment in advanced chronic lymphocytic leukemia. The complete response rate, however, was low. Therefore, treatment with ofatumumab should be moved to earlier phases of the disease. Ideally, this should be done in combination with other agents, as recently approved for ofatumumab plus chlorambucil as front-line treatment for patients unfit for fludarabine. This study is registered at clinicaltrials.gov identifier:01453062.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Antineoplásicos/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Esquema de Medicação , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Retratamento , Resultado do TratamentoAssuntos
Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Pirazóis/uso terapêutico , Pirimidinas/uso terapêutico , Terapia de Salvação , Adenina/análogos & derivados , Idoso , Ensaios de Uso Compassivo , Feminino , Seguimentos , Humanos , Leucemia Linfocítica Crônica de Células B/patologia , Masculino , Recidiva Local de Neoplasia/patologia , Piperidinas , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , SuéciaRESUMO
Melphalan flufenamide (melflufen) is a novel lipophilic peptide-drug conjugate recently approved in the European Union and the United Kingdom for the treatment of relapsed refractory multiple myeloma. Melflufen rapidly crosses the cell membrane, and inside tumor cells, melflufen utilizes peptidases and esterases to release entrapped hydrophilic metabolites with alkylating activity. In vitro, in whole blood, melflufen was rapidly distributed into blood cells and quickly converted to its main metabolite melphalan, with maximum cellular concentrations of noncovalently bound melflufen and melphalan after 1 and 6 minutes, respectively. Melphalan outflow from blood cells was slow, with peak concentrations in plasma after 25 minutes. The pharmacokinetics of melflufen was best described by a 2-compartment model. Following a 30-minutes intravenous infusion of 40 mg in 27 patients with relapsed refactory multiple myeloma, mean half-life in the α phase of the curve was 1.24 minutes, half-life in the ß phase of the curve 26.7 minutes, and clearance 13.4 L/min. Desethyl-melflufen exposure was below 20% compared to melflufen. Based on population analysis (298 patients with relapsed refactory multiple myeloma), the melphalan pharmacokinetics were well characterized by a 3-compartment model with melflufen dosing into a peripheral compartment, assuming instantaneous distribution of melflufen into cells and subsequent rapid metabolism to melphalan. Mean clearance and central and deep peripheral volumes of distribution were 22.4 L/h, 2.70 L, and 51.3 L, respectively. Clearance increased and maximum concentration decreased with increasing body weight and estimated glomerular filtration rate. In conclusion, melflufen administration differs from melphalan administration by a more rapid distribution into cells, which, in conjunction with a rapid intracellular metabolism, allows for higher maximum concentrations of alkylating agents, and by a more extensive distribution of melphalan to peripheral tissues.
Assuntos
Melfalan , Mieloma Múltiplo , Fenilalanina/análogos & derivados , Humanos , Melfalan/farmacocinética , Melfalan/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Alquilantes/uso terapêutico , PeptídeosRESUMO
BACKGROUND: Melflufen, a first-in-class alkylating peptide-drug conjugate, rapidly enters tumor cells and metabolizes to melphalan. In previous studies, melflufen was administered via central venous catheter (CVC). However, administration by peripheral venous catheter (PVC) may be preferable. PATIENTS AND METHODS: PORT was a two-period, phase 2 crossover study of CVC versus PVC melflufen administration in patients with relapsed/refractory multiple myeloma. Adults with ≥ 2 prior therapies refractory to/intolerant of an immunomodulatory drug and a proteasome inhibitor were randomized 1:1 to weekly oral dexamethasone plus melflufen (40 mg) via CVC or PVC infusion on day 1 of 28-day cycle 1. In cycle 2, patients continued dexamethasone and crossed over to the other melflufen administration route. In cycle 3, all patients received melflufen until progression; PVC or CVC routes were allowed based upon investigator decision. Pharmacokinetic sampling was performed during and after melflufen infusion. Primary endpoints were melphalan pharmacokinetic parameters (Cmax, AUC(0-t), and AUC(0-∞)) and frequency and severity of PVC-related local reactions. RESULTS: The 90% CIs for adjusted geometric mean ratios for pharmacokinetic parameters following CVC versus PVC administration were within the 0.8-1.25 bioequivalence range (Cmax 0.946 [90% CI: 0.849, 1.053]; AUC(0-t) 0.952 [90% CI: 0.861, 1.053]; AUC(0-∞) 0.955 [90% CI: 0.863, 1.058]). In both arms, adverse events were primarily hematological and similar; no phlebitis or local infusion-related reactions occurred. CONCLUSION: Melflufen PVC and CVC administrations are bioequivalent based on melphalan pharmacokinetic parameters. Melflufen via PVC was well tolerated, with no infusion-related reactions or new safety signals and may represent an alternative route of administration.
Assuntos
Estudos Cross-Over , Mieloma Múltiplo , Humanos , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/patologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Fenilalanina/análogos & derivados , Fenilalanina/administração & dosagem , Fenilalanina/farmacocinética , Adulto , Melfalan/administração & dosagem , Melfalan/uso terapêutico , Melfalan/análogos & derivados , Recidiva Local de Neoplasia/tratamento farmacológico , Administração Intravenosa , Idoso de 80 Anos ou mais , Resultado do Tratamento , Infusões IntravenosasRESUMO
INTRODUCTION: Melphalan flufenamide (melflufen), a first-in-class alkylating peptide-drug conjugate, plus dexamethasone demonstrated superior progression-free survival (PFS) but directionally different overall survival (OS) favoring pomalidomide (hazard ratio [HR], 1.10) in OCEAN. METHODS: These analyses further investigated prognostic subgroups impacting survival in updated data from the randomized, phase 3 OCEAN study (NCT03151811; date: February 3, 2022) and the phase 2 HORIZON study (NCT02963493; date: February 2, 2022). RESULTS: In OCEAN, subgroups prognostic for OS were age (P = .011; <65 years favored pomalidomide) and no previous autologous stem cell transplant (ASCT) or progression >36 months after ASCT (P = .001; favored melflufen). Overall, 245 of 495 (49%) patients randomized had received a previous ASCT, of which 202 (82%) had progressed within 36 months following their ASCT. When excluding patients who had progressed <36 months post-ASCT (melflufen group, n = 145; pomalidomide group, n = 148), median OS was 23.6 months with melflufen and 19.8 months with pomalidomide (HR, 0.83 [95% CI, 0.62-1.12]; P = .22). Among patients with triple-class refractory disease in HORIZON, patients who had progressed <36 months post-ASCT (n = 58) had a lower response rate and shorter duration of response and PFS than the remaining patients (n = 52). Safety was consistent with previous reports. CONCLUSION: These analyses demonstrate a consistent benefit for melflufen and dexamethasone in patients with relapsed/refractory multiple myeloma who have not received an ASCT or progressed >36 months after receiving an ASCT (ClinicalTrials.gov identifier: NCT03151811).
Assuntos
Mieloma Múltiplo , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Dexametasona/uso terapêutico , Seguimentos , Melfalan/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Medição de Risco , Transplante Autólogo , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
BACKGROUND: High-resolution genomic microarrays enable simultaneous detection of copy-number aberrations such as the known recurrent aberrations in chronic lymphocytic leukemia [del(11q), del(13q), del(17p) and trisomy 12], and copy-number neutral loss of heterozygosity. Moreover, comparison of genomic profiles from sequential patients' samples allows detection of clonal evolution. DESIGN AND METHODS: We screened samples from 369 patients with newly diagnosed chronic lymphocytic leukemia from a population-based cohort using 250K single nucleotide polymorphism-arrays. Clonal evolution was evaluated in 59 follow-up samples obtained after 5-9 years. RESULTS: At diagnosis, copy-number aberrations were identified in 90% of patients; 70% carried known recurrent alterations, including del(13q) (55%), trisomy 12 (10.5%), del(11q) (10%), and del(17p) (4%). Additional recurrent aberrations were detected on chromosomes 2 (1.9%), 4 (1.4%), 8 (1.6%) and 14 (1.6%). Thirteen patients (3.5%) displayed recurrent copy-number neutral loss of heterozygosity on 13q, of whom 11 had concurrent homozygous del(13q). Genomic complexity and large 13q deletions correlated with inferior outcome, while the former was linked to poor-prognostic aberrations. In the follow-up study, clonal evolution developed in 8/24 (33%) patients with unmutated IGHV, and in 4/25 (16%) IGHV-mutated and treated patients. In contrast, untreated patients with mutated IGHV (n=10) did not acquire additional aberrations. The most common secondary event, del(13q), was detected in 6/12 (50%) of all patients with acquired alterations. Interestingly, aberrations on, for example, chromosome 6q, 8p, 9p and 10q developed exclusively in patients with unmutated IGHV. CONCLUSIONS: Whole-genome screening revealed a high frequency of genomic aberrations in newly diagnosed chronic lymphocytic leukemia. Clonal evolution was associated with other markers of aggressive disease and commonly included the known recurrent aberrations.
Assuntos
Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/genética , Análise de Sequência com Séries de Oligonucleotídeos , Adolescente , Adulto , Idoso , Aberrações Cromossômicas , Cromossomos Humanos Par 13/genética , Variações do Número de Cópias de DNA/genética , Seguimentos , Genoma Humano , Humanos , Leucemia Linfocítica Crônica de Células B/mortalidade , Perda de Heterozigosidade/genética , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , Prognóstico , Análise de Sobrevida , Adulto JovemAssuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/imunologia , Idoso , Alemtuzumab , Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/efeitos adversos , Feminino , Humanos , Terapia de Imunossupressão/métodos , Lenalidomida , Masculino , Talidomida/administração & dosagem , Talidomida/efeitos adversos , Talidomida/análogos & derivadosRESUMO
Register for new drugs in cancer care provides a picture of how the drugs are used in the daily clinical practice Today, an increasing number of cancer drugs are approved before traditional well-controlled phase 3 studies have been conducted and in many registration studies there is no participation of Swedish departments. This article describes the general experience of a caregiver initiated systematic follow-up of new cancer drugs that shows the possibility of obtaining a picture of the drug's use in routine care. From the register "New Pharmaceuticals in Cancer care", registrations from Stockholm-Gotland region are reported. The structure of the registry can be used with advantage in other therapeutic areas than cancer and can be supplemented with data from national and regional registers as well as quality registers including patient experiences. The knowledge is important to many actors in health care and can contribute to an evidence based, patient-safe and equal healthcare in accordance with current guidelines.
Assuntos
Antineoplásicos , Neoplasias/tratamento farmacológico , Sistema de Registros , Androstenos/uso terapêutico , Antineoplásicos/administração & dosagem , Antineoplásicos/uso terapêutico , Benzamidas , Bevacizumab/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/mortalidade , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/mortalidade , Uso de Medicamentos , Humanos , Ipilimumab/uso terapêutico , Masculino , Melanoma/tratamento farmacológico , Melanoma/mortalidade , Neoplasias/mortalidade , Nitrilas , Cuidados Paliativos/métodos , Feniltioidantoína/análogos & derivados , Feniltioidantoína/uso terapêutico , Projetos Piloto , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/mortalidade , Rádio (Elemento)/uso terapêutico , Taxa de Sobrevida , Suécia/epidemiologia , Suspensão de TratamentoRESUMO
New drugs targeting important cellular signaling pathways are currently being developed for chronic lymphocytic leukemia (CLL). It is therefore of interest to analyze their in vitro killing capacity in manufacturer-independent, comparative experiments. We here report on the sensitivity of CLL cells to a panel of emerging targeted therapeutics using high-throughput screening based on an automated fluorescence digital scanning system. Fresh CLL cells from 42 patients with indolent or progressive CLL were cultured for 72 hours on microtiter plates in a unique primary cell culture medium. Antitumor effects of 31 small therapeutic molecules (and, as controls, 29 cytostatic agents) at equimolar concentration were compared in a fluorescence survival assay. In vitro sensitivity to each drug exhibited considerable interpatient variability. The highest mean direct killing was observed for one survivin inhibitor (YM-155), two bcl-2 inhibitors (ABT-199, ABT-737), and one selective CDK inhibitor (dinaciclib). Their killing capacity was, in contrast to most cytostatic agents, similarly high in refractory versus untreated CLL patients and was significantly higher on cells with the 17p deletion/TP53 mutation than on cells with other cytogenetic abnormalities (p = 0.02). Sensitivity of bone marrow and lymph node cells was highly correlated with that of blood cells. Even though direct killing may not be the only therapeutic effector function in vivo, results from this head-to-head comparison may help to identify drugs of particular interest for intensified clinical development.
Assuntos
Antineoplásicos/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Análise por Conglomerados , Resistencia a Medicamentos Antineoplásicos , Ensaios de Seleção de Medicamentos Antitumorais , Feminino , Humanos , Técnicas In Vitro , Masculino , Pessoa de Meia-Idade , Células Tumorais CultivadasRESUMO
There have been concerns about serious infusion-related adverse drug reactions (ADR) with rituximab in chronic lymphocytic leukemia (CLL). We therefore conducted an observational trial in which CLL patients planned for rituximab-containing therapy were eligible. Ninety-six patients from 19 centers were enrolled. The most common regimen was rituximab, fludarabine and cyclophosphamide. Fifty-six patients experienced ADR during rituximab infusion. Reactions ≥ grade 3 occurred in five patients and no cases of tumor lysis syndrome were recorded. Despite a high number of circulating tumor cells few severe ADR were noted. Thus, rituximab-containing regimens can be considered safe for CLL patients in general practice.
Assuntos
Anticorpos Monoclonais Murinos/administração & dosagem , Anticorpos Monoclonais Murinos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/sangue , Leucemia Linfocítica Crônica de Células B/epidemiologia , Leucemia Linfocítica Crônica de Células B/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Rituximab , Suécia/epidemiologia , Vidarabina/administração & dosagem , Vidarabina/efeitos adversos , Vidarabina/análogos & derivadosRESUMO
BACKGROUND: Posttransplant lymphoproliferative disease (PTLD) is a serious complication after organ transplantation associated with a high mortality, and is often caused by a primary or reactivated Epstein-Barr virus (EBV) infection. The incidence of PTLD ranges from 1% to 10%, depending on the type of organ transplanted and the immunosuppressive regimens used. METHODS: In this retrospective study from a single center, 12 (2.4%) of 500 consecutive recipients of liver grafts developed lymphoma. Patient data were obtained by chart review. All diagnostic biopsies were reviewed by two hematopathologists. RESULTS: The median time between transplantation and the diagnosis of lymphoma was 19.5 (1.5-148) mo. Nine of the patients had been treated with OKT-3 and/or ATG after the transplantation. Two patients had a pretransplant diagnosis of lymphoma. The PTLD was of high grade in all patients, and was associated with EBV in 6 of 9 examined cases. No relation with human herpesvirus-8 could be detected. In all patients, immunosuppression was reduced at the time of lymphoma diagnosis. Chemotherapy was used in all patients, mostly upfront but in one patient after lymphoma progression after reduction of immunosuppression. Nine patients also got antiviral therapy. Immunotherapy with the monoclonal antibody rituximab was used in one patient. Half of the patients are alive, in complete continuous remission, more than 4 yr after the lymphoma diagnosis. Two patients died of neutropenic sepsis, three of persistent lymphoma, and one of recurrent cirrhosis while in complete remission. CONCLUSIONS: PTLD is a significant complication in liver-transplanted patients. Intensive chemotherapy can induce long-term remissions in a substantial number of patients. The role for monoclonal antibodies in this setting should be investigated further.
Assuntos
Transplante de Fígado/efeitos adversos , Linfoma/etiologia , Adulto , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Murinos , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Pré-Escolar , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico , Infecções por Vírus Epstein-Barr/complicações , Feminino , Rejeição de Enxerto/terapia , Infecções por Herpesviridae/complicações , Herpesvirus Humano 8 , Humanos , Terapia de Imunossupressão , Imunossupressores/uso terapêutico , Lactente , Linfoma/tratamento farmacológico , Linfoma/mortalidade , Masculino , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Indução de Remissão , Estudos Retrospectivos , Rituximab , Fatores de Tempo , Resultado do Tratamento , Vincristina/uso terapêuticoRESUMO
Patients with fludarabine-refractory (FR) chronic lymphocytic leukemia (CLL) receive novel agents in pivotal, non-randomised phase-2 trials. Understanding outcome of FR-CLL in health-care may provide important contextual information. Records from 1301 patients (Stockholm-Cancer-Registry 1991-2010) identified 92 FR-patients; bulky lymph-nodes (BFR-group), double-refractory (DR-group), or Others'-group for outcome-analysis. Median age was 69 years 67% had Rai-stage III/IV with median 3 prior therapies. Overall response-rate was 20%; significantly lower in BFR (8%, p = 0.01) and DR (20%, p = 0.01) than in 'Others' (31%). Time-to-treatment-failure (months) was significantly longer in 'Others' (9.2) than in BFR/DR (5.3/4.4) (p < 0.01) and significantly longer (p < 0.05) in antibody-treated patients (9.1) compared to other regimens (5.2). Early-death occurred in 5%, ≥ grade III-infections in 20%. Median overall-survival (OS) was 18 months; 29 in BFR vs. 13 in DR (p = 0.054). Male sex was the only prognostic factor on OS (p = 0.01, HR 2.2, multivariate-Cox-regression). Our results, without external referrals, facilitate interpretation of non-randomised trials/novel drugs in advanced-stage-CLL.
Assuntos
Leucemia Linfocítica Crônica de Células B/epidemiologia , Vigilância em Saúde Pública , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Seguimentos , Humanos , Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Sistema de Registros , Terapia de Salvação , Suécia/epidemiologia , Resultado do Tratamento , Vidarabina/análogos & derivados , Vidarabina/uso terapêuticoRESUMO
The receptor tyrosine kinase ROR1 has been shown to be overexpressed in chronic lymphocytic leukemia (CLL). The aim of this study was to further characterize the expression of ROR1 and the other member of the ROR family, ROR2, in other lymphoid and myeloid malignancies. Normal white blood cells and reactive lymph nodes were negative for ROR1 and ROR2. A significantly high and uniform surface expression of ROR1 was found in CLL/hairy cell leukemia (HCL) compared to mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), myelomas, acute lymphoblastic leukemia (ALL) and myeloid leukemias (p = 0.02 to < 0.001). The lowest proportion of ROR1+ cells was seen in FL, whereas CLL, HCL and CML had significantly higher numbers of ROR1+ cells. Longitudinal follow-up of individual patients with CLL revealed that ROR1+ cells remained stable over time in non-progressive patients, but increased when the disease progressed (p < 0.05). Thus, a variable staining pattern of ROR1 ranging from very high (CLL, HCL) and high (CML) to intermediate (myeloma and DLBCL) or low (FL) was noted. ROR2 was not detected in hematological malignancies.