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1.
Lancet ; 403(10445): 2709-2719, 2024 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38843860

RESUMO

BACKGROUND: Tenosynovial giant cell tumour (TGCT) is a locally aggressive neoplasm for which few systemic treatment options exist. This study evaluated the efficacy and safety of vimseltinib, an oral, switch-control, CSF1R inhibitor, in patients with symptomatic TGCT not amenable to surgery. METHODS: MOTION is a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial done in 35 specialised hospitals in 13 countries. Eligible patients were adults (aged ≥18 years) with a histologically confirmed diagnosis of TGCT for which surgical resection could potentially worsen functional limitation or cause severe morbidity. Patients were randomly assigned (2:1) with interactive response technology to vimseltinib (30 mg orally twice weekly) or placebo, administrated in 28-day cycles for 24 weeks. Patients and site personnel were masked to treatment assignment until week 25, unless progressive disease was confirmed earlier. The primary endpoint was objective response rate by independent radiological review using Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST) at week 25 in the intention-to-treat population. Safety was assessed in all patients who received the study drug. The trial is registered with ClinicalTrials.gov, NCT05059262, and enrolment is complete. FINDINGS: Between Jan 21, 2022, and Feb 21, 2023, 123 patients were randomly assigned (83 to vimseltinib and 40 to placebo). 73 (59%) patients were female and 50 (41%) were male. Nine (11%) of 83 patients assigned to vimseltinib and five (13%) of 40 patients assigned to placebo discontinued treatment before week 25; one patient in the placebo group did not receive any study drug. Objective response rate per RECIST was 40% (33 of 83 patients) in the vimseltinib group vs 0% (none of 40) in the placebo group (difference 40% [95% CI 29-51]; p<0·0001). Most treatment-emergent adverse events (TEAEs) were grade 1 or 2; the only grade 3 or 4 TEAE that occurred in more than 5% of patients receiving vimseltinib was increased blood creatine phosphokinase (eight [10%] of 83). One patient in the vimseltinib group had a treatment-related serious TEAE of subcutaneous abscess. No evidence of cholestatic hepatotoxicity or drug-induced liver injury was noted. INTERPRETATION: Vimseltinib produced a significant objective response rate and clinically meaningful functional and symptomatic improvement in patients with TGCT, providing an effective treatment option for these patients. FUNDING: Deciphera Pharmaceuticals.


Assuntos
Tumor de Células Gigantes de Bainha Tendinosa , Humanos , Método Duplo-Cego , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Tumor de Células Gigantes de Bainha Tendinosa/tratamento farmacológico , Idoso , Antineoplásicos/uso terapêutico , Antineoplásicos/efeitos adversos , Resultado do Tratamento , Anilidas , Quinolinas
2.
Genes Chromosomes Cancer ; 63(1): e23215, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38050902

RESUMO

Undifferentiated sarcomas characterized by a primitive monomorphic round to spindle cell phenotype and often non-specific immunoprofile remain difficult to subclassify outside molecular analysis. The increased application of RNA sequencing in clinical practice led to significant advances and discoveries of novel gene fusions that furthered our understanding and refined classification of otherwise undifferentiated neoplasms. In this study, we report an undifferentiated round to spindle cell sarcoma arising in the femur of a 34-year-old female. The round to spindle tumor cells were arranged in short fascicles, with focal rosette formation, within a hyalinized stroma. The tumor immunoprofile included diffuse reactivity for CD99, SATB2, and TLE1 and patchy positivity for Cyclin D1, Keratin AE1/AE3, synaptophysin, and chromogranin. Other markers, such as EMA, SMA, desmin, S100, ERG, and WT1, were negative. Fluorescence in situ hybridization analysis for EWSR1 gene alterations showed a break-apart signal and targeted RNA sequencing revealed an EWSR1::SSX3 gene fusion. The patient received neoadjuvant chemotherapy followed by surgery and subsequently relapsed in less than a year with lung metastasis. Larger series are needed to determine if this fusion defines a novel subset of undifferentiated tumors or represents a genomic variant of already existing primitive round cell sarcoma categories, such as Ewing sarcoma or synovial sarcoma.


Assuntos
Sarcoma de Ewing , Sarcoma , Neoplasias de Tecidos Moles , Feminino , Humanos , Adulto , Hibridização in Situ Fluorescente , Sarcoma/genética , Sarcoma/patologia , Sarcoma de Ewing/genética , Sarcoma de Ewing/patologia , Fatores de Transcrição/genética , Neoplasias de Tecidos Moles/genética , Fusão Gênica , Biomarcadores Tumorais/genética , Proteínas de Fusão Oncogênica/genética , Proteína EWS de Ligação a RNA/genética
3.
Cancer ; 128(1): 85-93, 2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-34643947

RESUMO

BACKGROUND: The value of neoadjuvant chemotherapy in soft tissue sarcoma (STS) is not completely understood. This study investigated the benefit of neoadjuvant chemotherapy according to prognostic stratification based on the Sarculator nomogram for STS. METHODS: This study analyzed data from ISG-STS 1001, a randomized study that tested 3 cycles of neoadjuvant anthracycline plus ifosfamide (AI) or histology-tailored (HT) chemotherapy in adult patients with STS. The 10-year predicted overall survival (pr-OS) was estimated with the Sarculator and was stratified into higher (10-year pr-OS < 60%) and lower risk subgroups (10-year pr-OS ≥ 60%). RESULTS: The median pr-OS was 0.63 (interquartile range [IQR], 0.51-0.72) for the entire study population, 0.62 (IQR, 0.51-0.70) for the AI arm, and 0.64 (IQR, 0.51-0.73) for the HT arm. Three- and 5-year overall survival (OS) were 0.86 (95% confidence interval [CI], 0.82-0.93) and 0.81 (95% CI, 0.71-0.86) in lower risk patients and 0.69 (95% CI, 0.70-0.85) and 0.59 (95% CI, 0.51-0.72) in the higher risk patients (log-rank test, P = .004). In higher risk patients, the 3- and 5-year Sarculator-predicted and study-observed OS rates were 0.68 and 0.58, respectively, and 0.85 and 0.66, respectively, in the AI arm (P = .04); the corresponding figures in the HT arm were 0.69 and 0.60, respectively, and 0.69 and 0.55, respectively (P > .99). In lower risk patients, the 3- and 5-year Sarculator-predicted and study-observed OS rates were 0.85 and 0.80, respectively, and 0.89 and 0.82, respectively, in the AI arm (P = .507); the corresponding figures in the HT arm were 0.87 and 0.81, respectively, and 0.86 and 0.74, respectively (P = .105). CONCLUSIONS: High-risk patients treated with AI performed better than predicted, and this adds to the evidence for the efficacy of neoadjuvant AI in STS. LAY SUMMARY: People affected by soft tissue sarcomas of the extremities and trunk wall are at some risk of developing metastasis after surgery. Preoperative or postoperative chemotherapy has been tested in clinical trials to reduce the chances of distant metastasis. However, study findings have not been conclusive. This study stratified the risk of metastasis for people affected by sarcomas who were included in a clinical trial testing neoadjuvant chemotherapy. Exploiting the prognostic nomogram Sarculator, it found a benefit for chemotherapy when the predicted risk, based on patient and tumor characteristics, was high.


Assuntos
Sarcoma , Neoplasias de Tecidos Moles , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Humanos , Ifosfamida , Terapia Neoadjuvante , Medição de Risco , Sarcoma/patologia
4.
Lancet Oncol ; 21(3): 456-466, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32066540

RESUMO

BACKGROUND: Solitary fibrous tumour is an ultra-rare sarcoma, which encompasses different clinicopathological subgroups. The dedifferentiated subgroup shows an aggressive course with resistance to pazopanib, whereas in the malignant subgroup, pazopanib shows higher activity than in previous studies with chemotherapy. We designed a trial to test pazopanib activity in two different cohorts of solitary fibrous tumour: the malignant-dedifferentiated cohort, which was previously published, and the typical cohort, which is presented here. METHODS: In this single-arm, phase 2 trial, adult patients (aged ≥18 years) diagnosed with confirmed metastatic or unresectable typical solitary fibrous tumour of any location, who had progressed in the previous 6 months (by Choi criteria or Response Evaluation Criteria in Solid Tumors [RECIST]) and an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 were enrolled at 11 tertiary hospitals in Italy, France, and Spain. Patients received pazopanib 800 mg once daily, taken orally, until progression, unacceptable toxicity, withdrawal of consent, non-compliance, or a delay in pazopanib administration of longer than 3 weeks. The primary endpoint was proportion of patients achieving an overall response measured by Choi criteria in patients who received at least 1 month of treatment with at least one radiological assessment. All patients who received at least one dose of the study drug were included in the safety analyses. This study is registered in ClinicalTrials.gov, NCT02066285, and with the European Clinical Trials Database, EudraCT 2013-005456-15. FINDINGS: From June 26, 2014, to Dec 13, 2018, of 40 patients who were assessed, 34 patients were enrolled and 31 patients were included in the response analysis. Median follow-up was 18 months (IQR 14-34), and 18 (58%) of 31 patients had a partial response, 12 (39%) had stable disease, and one (3%) showed progressive disease according to Choi criteria and central review. The proportion of overall response based on Choi criteria was 58% (95% CI 34-69). There were no deaths caused by toxicity, and the most frequent adverse events were diarrhoea (18 [53%] of 34 patients), fatigue (17 [50%]), and hypertension (17 [50%]). INTERPRETATION: To our knowledge, this is the first prospective trial of pazopanib for advanced typical solitary fibrous tumour. The manageable toxicity and activity shown by pazopanib in this cohort suggest that this drug could be considered as first-line treatment for advanced typical solitary fibrous tumour. FUNDING: Spanish Group for Research on Sarcomas (GEIS), Italian Sarcoma Group (ISG), French Sarcoma Group (FSG), GlaxoSmithKline, and Novartis.


Assuntos
Inibidores de Proteínas Quinases/uso terapêutico , Pirimidinas/uso terapêutico , Tumores Fibrosos Solitários/tratamento farmacológico , Sulfonamidas/uso terapêutico , Idoso , Feminino , Seguimentos , Humanos , Indazóis , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Prognóstico , Estudos Prospectivos , Critérios de Avaliação de Resposta em Tumores Sólidos , Tumores Fibrosos Solitários/patologia , Taxa de Sobrevida
5.
BMC Cancer ; 20(1): 99, 2020 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-32024476

RESUMO

BACKGROUND: Gastrointestinal stromal tumor (GIST) initiation and evolution is commonly framed by KIT/PDGFRA oncogenic activation, and in later stages by the polyclonal expansion of resistant subpopulations harboring KIT secondary mutations after the onset of imatinib resistance. Thus, circulating tumor (ct)DNA determination is expected to be an informative non-invasive dynamic biomarker in GIST patients. METHODS: We performed amplicon-based next-generation sequencing (NGS) across 60 clinically relevant genes in 37 plasma samples from 18 GIST patients collected prospectively. ctDNA alterations were compared with NGS of matched tumor tissue samples (obtained either simultaneously or at the time of diagnosis) and cross-validated with droplet digital PCR (ddPCR). RESULTS: We were able to identify cfDNA mutations in five out of 18 patients had detectable in at least one timepoint. Overall, NGS sensitivity for detection of cell-free (cf)DNA mutations in plasma was 28.6%, showing high concordance with ddPCR confirmation. We found that GIST had relatively low ctDNA shedding, and mutations were at low allele frequencies. ctDNA was detected only in GIST patients with advanced disease after imatinib failure, predicting tumor dynamics in serial monitoring. KIT secondary mutations were the only mechanism of resistance found across 10 imatinib-resistant GIST patients progressing to sunitinib or regorafenib. CONCLUSIONS: ctDNA evaluation with amplicon-based NGS detects KIT primary and secondary mutations in metastatic GIST patients, particularly after imatinib progression. GIST exhibits low ctDNA shedding, but ctDNA monitoring, when positive, reflects tumor dynamics.


Assuntos
Biomarcadores Tumorais , Ácidos Nucleicos Livres , DNA Tumoral Circulante , Tumores do Estroma Gastrointestinal/genética , Adulto , Idoso , Éxons , Feminino , Tumores do Estroma Gastrointestinal/sangue , Tumores do Estroma Gastrointestinal/diagnóstico , Tumores do Estroma Gastrointestinal/tratamento farmacológico , Genótipo , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Biópsia Líquida , Masculino , Pessoa de Meia-Idade , Terapia de Alvo Molecular , Mutação , Metástase Neoplásica , Reação em Cadeia da Polimerase , Prognóstico , Inibidores de Proteínas Quinases/farmacologia , Inibidores de Proteínas Quinases/uso terapêutico , Carga Tumoral
6.
Lancet Oncol ; 20(9): 1252-1262, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31331701

RESUMO

BACKGROUND: Extraskeletal myxoid chondrosarcoma is a rare sarcoma with low sensitivity to cytotoxic chemotherapy. Retrospective evidence suggests that antiangiogenic drugs could be a treatment option. We aimed to investigate the activity of pazopanib, an antiangiogenic drug, in patients with advanced extraskeletal myxoid chondrosarcoma. METHODS: In this single-arm, open-label phase 2 trial, three parallel independent cohorts of different histotypes of advanced sarcomas were recruited (extraskeletal myxoid chondrosarcoma, typical solitary fibrous tumour, and malignant-dedifferentiated solitary fibrous tumour). In each cohort, patients received pazopanib. In this Article, we report the results of the cohort of patients with advanced extraskeletal myxoid chondrosarcoma. Separate reporting of the three cohorts was prespecified in the study protocol. In this cohort, adult patients (aged ≥18 years) with a diagnosis of NR4A3-translocated, metastatic, or unresectable extraskeletal myxoid chondrosarcoma, who had Response Evaluation Criteria in Solid Tumors (RECIST) progression in the previous 6 months, and had an Eastern Cooperative Oncology Group performance status of 0-2, were enrolled at 11 study sites of the Spanish, Italian, and French sarcoma groups. Patients received oral pazopanib (800 mg/day) continuously, until disease progression, unacceptable toxicity, death, non-compliance, patient refusal, or investigator's decision. The primary endpoint was the proportion of patients achieving an objective response according to RECIST 1·1 in the modified intention-to-treat population (patients who provided consent and had a central molecularly confirmed diagnosis of extraskeletal myxoid chondrosarcoma). The safety analysis included all patients who received at least one dose of pazopanib. This study is registered with ClinicalTrials.gov, number NCT02066285. FINDINGS: Between June 24, 2014, and Jan 17, 2017, 26 patients entered the study and started pazopanib. Of these, 23 met the eligibility criteria for the modified intention-to-treat analysis. Median follow-up was 27 months (IQR 18-30). 22 patients (one patient died before the primary analysis) were evaluable for the primary endpoint: four (18% [95% CI 1-36]) had a RECIST objective response. No deaths or grade 4 adverse events occurred. The most frequent grade 3 adverse events were hypertension (nine [35%] of 26 patients), increased concentration of alanine aminotransferase (six [23%]), and increased aspartate aminotransferase (five [19%]). INTERPRETATION: Pazopanib had clinically meaningful antitumour activity in patients with progressive and advanced extraskeletal myxoid chondrosarcoma, and could be considered a suitable option after failure to respond to first-line anthracycline-based chemotherapy in these patients. FUNDING: Spanish Group for Research on Sarcomas, Italian Sarcoma Group, French Sarcoma Group, GlaxoSmithKline, and Novartis.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Condrossarcoma/tratamento farmacológico , Neoplasias de Tecido Conjuntivo e de Tecidos Moles/tratamento farmacológico , Pirimidinas/administração & dosagem , Neoplasias de Tecidos Moles/tratamento farmacológico , Sulfonamidas/administração & dosagem , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Condrossarcoma/patologia , Intervalo Livre de Doença , Feminino , Humanos , Indazóis , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias de Tecido Conjuntivo e de Tecidos Moles/patologia , Pirimidinas/efeitos adversos , Estudos Retrospectivos , Neoplasias de Tecidos Moles/patologia , Sulfonamidas/efeitos adversos , Resultado do Tratamento
7.
Lancet Oncol ; 20(1): 134-144, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30578023

RESUMO

BACKGROUND: A solitary fibrous tumour is a rare soft-tissue tumour with three clinicopathological variants: typical, malignant, and dedifferentiated. Preclinical experiments and retrospective studies have shown different sensitivities of solitary fibrous tumour to chemotherapy and antiangiogenics. We therefore designed a trial to assess the activity of pazopanib in a cohort of patients with malignant or dedifferentiated solitary fibrous tumour. The clinical and translational results are presented here. METHODS: In this single-arm, phase 2 trial, adult patients (aged ≥ 18 years) with histologically confirmed metastatic or unresectable malignant or dedifferentiated solitary fibrous tumour at any location, who had progressed (by RECIST and Choi criteria) in the previous 6 months and had an ECOG performance status of 0-2, were enrolled at 16 third-level hospitals with expertise in sarcoma care in Spain, Italy, and France. Patients received pazopanib 800 mg once daily, taken orally without food, at least 1 h before or 2 h after a meal, until progression or intolerance. The primary endpoint of the study was overall response measured by Choi criteria in the subset of the intention-to-treat population (patients who received at least 1 month of treatment with at least one radiological assessment). All patients who received at least one dose of the study drug were included in the safety analyses. This study is registered with ClinicalTrials.gov, number NCT02066285, and with the European Clinical Trials Database, EudraCT number 2013-005456-15. FINDINGS: From June 26, 2014, to Nov 24, 2016, of 40 patients assessed, 36 were enrolled (34 with malignant solitary fibrous tumour and two with dedifferentiated solitary fibrous tumour). Median follow-up was 27 months (IQR 16-31). Based on central radiology review, 18 (51%) of 35 evaluable patients had partial responses, nine (26%) had stable disease, and eight (23%) had progressive disease according to Choi criteria. Further enrolment of patients with dedifferentiated solitary fibrous tumour was stopped after detection of early and fast progressions in a planned interim analysis. 51% (95% CI 34-69) of 35 patients achieved an overall response according to Choi criteria. Ten (29%) of 35 patients died. There were no deaths related to adverse events and the most frequent grade 3 or higher adverse events were hypertension (11 [31%] of 36 patients), neutropenia (four [11%]), increased concentrations of alanine aminotransferase (four [11%]), and increased concentrations of bilirubin (three [8%]). INTERPRETATION: To our knowledge, this is the first trial of pazopanib for treatment of malignant solitary fibrous tumour showing activity in this patient group. The manageable toxicity profile and the activity shown by pazopanib suggests that this drug could be an option for systemic treatment of advanced malignant solitary fibrous tumour, and provides a benchmark for future trials. FUNDING: Spanish Group for Research on Sarcomas (GEIS), Italian Sarcoma Group (ISG), French Sarcoma Group (FSG), GlaxoSmithKline, and Novartis.


Assuntos
Inibidores da Angiogênese/uso terapêutico , Antineoplásicos/uso terapêutico , Pirimidinas/uso terapêutico , Neoplasias de Tecidos Moles/tratamento farmacológico , Tumores Fibrosos Solitários/tratamento farmacológico , Sulfonamidas/uso terapêutico , Adulto , Idoso , Inibidores da Angiogênese/administração & dosagem , Inibidores da Angiogênese/efeitos adversos , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Feminino , Humanos , Indazóis , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Pirimidinas/administração & dosagem , Pirimidinas/efeitos adversos , Critérios de Avaliação de Resposta em Tumores Sólidos , Neoplasias de Tecidos Moles/patologia , Tumores Fibrosos Solitários/patologia , Sulfonamidas/administração & dosagem , Sulfonamidas/efeitos adversos , Análise de Sobrevida
8.
Lancet Oncol ; 20(7): 1023-1034, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31160249

RESUMO

BACKGROUND: Alveolar soft-part sarcoma (ASPS) is a rare soft-tissue sarcoma that is unresponsive to chemotherapy. Cediranib, a tyrosine-kinase inhibitor, has shown substantial activity in ASPS in non-randomised studies. The Cediranib in Alveolar Soft Part Sarcoma (CASPS) study was designed to discriminate the effect of cediranib from the intrinsically indolent nature of ASPS. METHODS: In this double-blind, placebo-controlled, randomised, phase 2 trial, we recruited participants from 12 hospitals in the UK (n=7), Spain (n=3), and Australia (n=2). Patients were eligible if they were aged 16 years or older; metastatic ASPS that had progressed in the previous 6 months; had an ECOG performance status of 0-1; life expectancy of more than 12 weeks; and adequate bone marrow, hepatic, and renal function. Participants had to have no anti-cancer treatment within 4 weeks before trial entry, with exception of palliative radiotherapy. Participants were randomly assigned (2:1), with allocation by use of computer-generated random permuted blocks of six, to either cediranib (30 mg orally, once daily) or matching placebo tablets for 24 weeks. Treatment was supplied in number-coded bottles, masking participants and clinicians to assignment. Participants were unblinded at week 24 or sooner if they had progression defined by Response Evaluation Criteria in Solid Tumors (version 1.1); those on placebo crossed over to cediranib and all participants continued on treatment until progression or death. The primary endpoint was percentage change in sum of target marker lesion diameters between baseline and week 24 or progression if sooner, assessed in the evaluable population (all randomly assigned participants who had a scan at week 24 [or sooner if they progressed] with target marker lesions measured). Safety was assessed in all participants who received at least one dose of study drug. This study is registered with ClinicalTrials.gov, number NCT01337401; the European Clinical Trials database, number EudraCT2010-021163-33; and the ISRCTN registry, number ISRCTN63733470 recruitment is complete and follow-up is ongoing. FINDINGS: Between July 15, 2011, and July 29, 2016, of 48 participants recruited, all were randomly assigned to cediranib (n=32) or placebo (n=16). 23 (48%) were female and the median age was 31 years (IQR 27-45). Median follow-up was 34·3 months (IQR 23·7-55·6) at the time of data cutoff for these analyses (April 11, 2018). Four participants in the cediranib group were not evaluable for the primary endpoint (one did not start treatment, and three did not have their scan at 24 weeks). Median percentage change in sum of target marker lesion diameters for the evaluable population was -8·3% (IQR -26·5 to 5·9) with cediranib versus 13·4% (IQR 1·1 to 21·3) with placebo (one-sided p=0·0010). The most common grade 3 adverse events on (blinded) cediranib were hypertension (six [19%] of 31) and diarrhoea (two [6%]). 15 serious adverse reactions in 12 patients were reported; 12 of these reactions occurred on open-label cediranib, and the most common symptoms were dehydration (n=2), vomiting (n=2), and proteinuria (n=2). One probable treatment-related death (intracranial haemorrhage) occurred 41 days after starting open-label cediranib in a patient who was assigned to placebo in the masked phase. INTERPRETATION: Given the high incidence of metastatic disease and poor long-term prognosis of ASPS, together with the lack of efficacy of conventional chemotherapy, our finding of significant clinical activity with cediranib in this disease is an important step towards the goal of long-term disease control for these young patients. Future clinical trials in ASPS are also likely to involve immune checkpoint inhibitors. FUNDING: Cancer Research UK and AstraZeneca.


Assuntos
Antineoplásicos/uso terapêutico , Quinazolinas/uso terapêutico , Sarcoma Alveolar de Partes Moles/tratamento farmacológico , Neoplasias de Tecidos Moles/tratamento farmacológico , Adulto , Idoso , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
9.
Oncologist ; 24(6): e338-e346, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30409793

RESUMO

BACKGROUND: Reference centers (RCs) are a key point for improving the survival of patients with soft-tissue sarcomas (STS). The aim of this study was to evaluate selected items in the management of patients with STS, comparing results between RC and local hospitals (LHs). MATERIALS AND METHODS: Diagnostic and therapeutic data from patients diagnosed between January 2004 and December 2011 were collected. Correlation with outcome was performed. RESULTS: A total of 622 sarcomas were analyzed, with a median follow-up of 40 months. Imaging of primary tumor preoperatively (yes vs. no) correlated with a higher probability of free surgical margins (77.4% versus 53.7%; p = .006). The provenance of the biopsy (RC vs. LH) significantly affected relapse-free survival (RFS; 3-year RFS 66% vs. 46%, respectively; p = .019). Likewise, 3-year RFS was significantly worse in cases with infiltrated (55.6%) or unknown (43.4%) microscopic surgical margins compared with free margins (63.6%; p < .001). Patients managed by RCs had a better 3-year overall survival compared with those managed by LHs (82% vs. 70.4%, respectively; p = .003). Perioperative chemotherapy in high-risk STS, more frequently administered in RCs than in LHs, resulted in significantly better 3-year RFS (66% vs. 44%; p = .011). In addition, patients with stage IV disease treated in RCs survived significantly longer compared with those in LHs (30.4 months vs. 18.5 months; p = .036). CONCLUSION: Our series indicate that selected quality-of-care items were accomplished better by RCs over LHs, all with significant prognostic value in patients with STS. Early referral to an RC should be mandatory if the aim is to improve the survival of patients with STS. IMPLICATIONS FOR PRACTICE: This prospective study in patients diagnosed with soft-tissue sarcoma shows the prognostic impact of reference centers in the management of these patients. The magnitude of this impact encompasses all steps of the process, from the initial management (performing diagnostic biopsy) to the advanced disease setting. This is the first prospective evidence showing improvement in outcomes of patients with metastatic disease when they are managed in centers with expertise. This study provides extra data supporting referral of patients with sarcoma to reference centers.


Assuntos
Institutos de Câncer/estatística & dados numéricos , Recidiva Local de Neoplasia/epidemiologia , Encaminhamento e Consulta/estatística & dados numéricos , Sarcoma/cirurgia , Biópsia/estatística & dados numéricos , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Masculino , Margens de Excisão , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/prevenção & controle , Prognóstico , Estudos Prospectivos , Sistema de Registros/estatística & dados numéricos , Sarcoma/diagnóstico , Sarcoma/mortalidade , Sarcoma/patologia , Espanha/epidemiologia , Fatores de Tempo
10.
Invest New Drugs ; 36(3): 468-475, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29527631

RESUMO

Background Sorafenib is a potent targeted-therapy that blockades angiogenesis and has demonstrated activity against some sarcoma subtypes. Preclinical studies suggested that treatment with sorafenib plus cytotoxic agents could result in additive efficacy. Methods Patients with advanced soft tissue sarcoma, with or without anthracycline pretreatment were included. Patients received oral sorafenib 400 mg twice daily starting on Day +2, ifosfamide 2.0 g/m2 iv infusion lasting 4 h on days 1, 2 and 3 with concurrent mesna 400 mg/m2 every three weeks until disease progression or unacceptable toxicity or up to a maximum of 6 cycles of ifosfamide (sorafenib could be continued until progressive disease or unacceptable toxicity). Primary objective was progression-free rate (PFR) at 3 and 6 months; secondary objectives were overall response rate (ORR), Progression-free survival (PFS), Overall survival (OS) and safety. This article reports the phase II part of a phase I/II clinical trial. Results Thirty-five patients were enrolled. PFR at 3 and 6 months was 66% (95% CI 48-81) and 37% (95% CI 22-55). Six patients (17%) achieved partial response and 17 (49%) stable disease. Median PFS was 4.8 months (CI 95% 1.94-6.36) and overall survival 16.2 months (95% CI 8.75-NA). Conclusion Treatment with sorafenib plus ifosfamide achieved a significant clinical benefit with an acceptable safety profile in patients with advanced soft tissue sarcoma resistant to anthracyclines, which warrants a more detailed study in randomized clinical trials.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Ifosfamida/uso terapêutico , Inibidores de Proteínas Quinases/uso terapêutico , Receptores de Fatores de Crescimento do Endotélio Vascular/antagonistas & inibidores , Sarcoma/tratamento farmacológico , Neoplasias de Tecidos Moles/tratamento farmacológico , Sorafenibe/uso terapêutico , Adolescente , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Intervalo Livre de Doença , Feminino , Humanos , Ifosfamida/efeitos adversos , Análise de Intenção de Tratamento , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Cooperação do Paciente , Inibidores de Proteínas Quinases/efeitos adversos , Sarcoma/patologia , Neoplasias de Tecidos Moles/patologia , Sorafenibe/efeitos adversos , Espanha , Resultado do Tratamento , Adulto Jovem
11.
Anticancer Drugs ; 28(10): 1157-1165, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28926423

RESUMO

This prospective, noninterventional study is the first phase IV trial designed to evaluate trabectedin in patients with advanced soft tissue sarcoma in real-life clinical practice across Europe. To be included in the study, patients must have received more than or equal to one cycle of trabectedin and be currently on treatment. The primary endpoint was progression-free survival as defined by investigators. The secondary endpoints included objective response rate, disease control rate, time to progression and the growth modulation index (GMI), overall survival, and an assessment of the cancer-related symptoms and safety. A total of 218 patients from 41 European centers were evaluated. Patients received a median of six cycles per patient, mostly on an outpatient basis (n=132; 60.6%). The median progression-free survival was 5.9 months, with 70 and 49% of patients free from progression at 3 and 6 months after treatment, respectively. Three (1.4%) patients achieved a complete response and 55 (25.2%) patients achieved a partial response for an objective response rate of 26.6%. A total of 85 (39.0%) patients had disease stabilization for a disease control rate of 65.6%. The median GMI was 0.8, with 5.1 and 38.8% of patients with a GMI of greater than 1.1 to less than 1.33 and greater than or equal to 1.33, respectively. The median overall survival was 21.3 months. Febrile neutropenia (2.3% of patients), neutropenia, nausea, and pneumonia (1.4% each) were the most common trabectedin-related grade 3/4 serious adverse drug reactions. Trabectedin confers clinically meaningful long-term benefits to patients with multiple soft tissue sarcoma histotypes, being either comparable or better than those observed previously in clinical trials, and with a manageable safety profile.


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Dioxóis/uso terapêutico , Sarcoma/tratamento farmacológico , Tetra-Hidroisoquinolinas/uso terapêutico , Adulto , Idoso , Antineoplásicos Alquilantes/efeitos adversos , Dioxóis/efeitos adversos , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Tetra-Hidroisoquinolinas/efeitos adversos , Trabectedina , Adulto Jovem
12.
BMC Med Res Methodol ; 17(1): 135, 2017 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-28882125

RESUMO

BACKGROUND: Gastrointestinal Stromal Tumours (GISTs) are the most common mesenchymal tumours. Currently, different pharmacological and surgical options are used to treat localised and metastatic GISTs, although this research field is broad and the body of evidence is scattered and expanding. Our objectives are to identify, describe and organise the current available evidence for GIST through an evidence mapping approach. METHODS: We followed the methodology of Global Evidence Mapping (GEM). We searched Pubmed, EMBASE, The Cochrane Library and Epistemonikos in order to identify systematic reviews (SRs) with or without meta-analyses published between 1990 and March 2016. Two authors assessed eligibility and extracted data. Methodological quality of the included systematic reviews was assessed using AMSTAR. We organised the results according to identified PICO questions and presented the evidence map in tables and a bubble plot. RESULTS: A total of 17 SRs met eligibility criteria. These reviews included 66 individual studies, of which three quarters were either observational or uncontrolled clinical trials. Overall, the quality of the included SRs was moderate or high. In total, we extracted 14 PICO questions from them and the corresponding results mostly favoured the intervention arm. CONCLUSIONS: The most common type of study used to evaluate therapeutic interventions in GIST sarcomas has been non-experimental studies. However, the majority of the interventions are reported as beneficial or probably beneficial by the respective authors of SRs. The evidence mapping is a useful and reliable methodology to identify and present the existing evidence about therapeutic interventions.


Assuntos
Prática Clínica Baseada em Evidências , Neoplasias Gastrointestinais/terapia , Tumores do Estroma Gastrointestinal/terapia , Humanos , Literatura de Revisão como Assunto
13.
FASEB J ; 29(2): 464-76, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25359494

RESUMO

Although all KRas (protein that in humans is encoded by the KRas gene) point mutants are considered to have a similar prognostic capacity, their transformation and tumorigenic capacities vary widely. We compared the metastatic efficiency of KRas G12V (Kirsten rat sarcoma viral oncogene homolog with valine mutation at codon 12) and KRas G13D (Kirsten rat sarcoma viral oncogene homolog with aspartic mutation at codon 13) oncogenes in an orthotopic colorectal cancer (CRC) model. Following subcutaneous preconditioning, recombinant clones of the SW48 CRC cell line [Kras wild-type (Kras WT)] expressing the KRas G12V or KRas G13D allele were microinjected in the mouse cecum. The percentage of animals developing lymph node metastasis was higher in KRas G12V than in KRas G13D mice. Microscopic, macroscopic, and visible lymphatic foci were 1.5- to 3.0-fold larger in KRas G12V than in KRas G13D mice (P < 0.05). In the lung, only microfoci were developed in both groups. KRas G12V primary tumors had lower apoptosis (7.0 ± 1.2 vs. 7.4 ± 1.0 per field, P = 0.02), higher tumor budding at the invasion front (1.2 ± 0.2 vs. 0.6 ± 0.1, P = 0.04), and a higher percentage of C-X-C chemokine receptor type 4 (CXCR4)-overexpressing intravasated tumor emboli (49.8 ± 9.4% vs. 12.8 ± 4.4%, P < 0.001) than KRas G13D tumors. KRas G12V primary tumors showed Akt activation, and ß5 integrin, vascular endothelial growth factor A (VEGFA), and Serpine-1 overexpression, whereas KRas G13D tumors showed integrin ß1 and angiopoietin 2 (Angpt2) overexpression. The increased cell survival, invasion, intravasation, and specific molecular regulation observed in KRas G12V tumors is consistent with the higher aggressiveness observed in patients with CRC expressing this oncogene.


Assuntos
Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Regulação Neoplásica da Expressão Gênica , Proteínas Proto-Oncogênicas p21(ras)/genética , Proteínas Proto-Oncogênicas p21(ras)/metabolismo , Angiopoietina-2/metabolismo , Animais , Apoptose , Linhagem Celular Tumoral , Sobrevivência Celular , Feminino , Humanos , Integrina beta1/metabolismo , Metástase Linfática , Camundongos , Camundongos Nus , Mutação , Invasividade Neoplásica , Metástase Neoplásica , Proteínas de Ligação a RNA/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo
14.
Nanomedicine ; 12(7): 1987-1996, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27085904

RESUMO

Unliganded drug-nanoconjugates accumulate passively in the tumor whereas liganded nanoconjugates promote drug internalization in tumor cells via endocytosis and increase antitumor efficacy. Whether or not tumor cell internalization associates with enhanced tumor uptake is still under debate. We here compared tumor uptake of T22-GFP-H6, a liganded protein carrier targeting the CXCR4 receptor, and the unliganded GFP-H6 carrier in subcutaneous and metastatic colorectal cancer models. T22-GFP-H6 had a higher tumor uptake in primary tumor and metastatic foci than GFP-H6, with no biodistribution or toxicity on normal tissues. T22-GFP-H6 was detected in target CXCR4+ tumor cell cytosol whereas GFP-H6 was detected in tumor stroma. SDF1-α co-administration switched T22-GFP-H6 internalization from CXCR4+ tumor epithelial cells to the stroma. Therefore, the incorporation of a targeting ligand promotes selective accumulation of the nanocarrier inside target tumor cells while increasing whole tumor uptake in a CXCR4-dependent manner, validating T22-GFP-H6 as a CXCR4-targeted drug carrier.


Assuntos
Neoplasias Colorretais/tratamento farmacológico , Receptores CXCR4 , Portadores de Fármacos , Endocitose , Humanos , Ligantes , Nanotecnologia , Peptídeos , Transdução de Sinais , Distribuição Tecidual
15.
Lancet Oncol ; 16(5): 531-40, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25864104

RESUMO

BACKGROUND: Ombrabulin (AVE8062) disrupts the vasculature of established tumours and has shown preclinical synergistic anti-tumour activity when combined with cisplatin. In this phase 3 trial, we aimed to assess the efficacy and safety of ombrabulin plus cisplatin compared with placebo plus cisplatin in patients with advanced soft-tissue sarcomas. METHODS: We did this multinational, randomised, double-blind, placebo-controlled phase 3 study at 44 centres in ten countries. Patients aged 18 years and older with metastatic soft-tissue sarcomas, an Eastern Cooperative Oncology Group performance status of 0-2, and who had previously received treatment with anthracycline and ifosfamide were randomly assigned (1:1) to intravenous infusion of ombrabulin 25 mg/m(2) plus cisplatin 75 mg/m(2) or intravenous infusion of placebo plus cisplatin 75 mg/m(2) every 3 weeks. Patients were allocated to treatment using a permuted blocks randomisation scheme (block size of four) via an interactive voice-response system, and stratified by histological subtype. Patients, medical staff, study investigators, and individuals who handled and analysed the data were masked to treatment assignment. Our primary endpoint was median progression-free survival in the intention-to-treat population. Safety analyses were done on all randomised patients who received at least one dose of study drug. This trial is now closed, and is registered with ClinicalTrials.gov, number NCT00699517. FINDINGS: Between June 13, 2008, and April 26, 2012, we randomly assigned 355 patients to ombrabulin plus cisplatin (n=176) or placebo plus cisplatin (n=179). Median duration of follow-up was 27·9 (IQR 20·9-33·2) in the placebo group and 30·5 months (20·7-37·6) in the ombrabulin group. Progression-free survival was slightly, but significantly, improved in the ombrabulin group compared with the placebo group (median 1·54 months [95% CI 1·45-2·69] vs 1·41 [1·38-1·58] months; hazard ratio 0·76 [95% CI 0·59-0·98]; p=0·0302). Grade 3 or 4 adverse events occurred more frequently in individuals in the ombrabulin group than in those in the placebo group and included neutropenia (34 [19%] in the ombrabulin group vs 14 [8%] in the placebo group) and thrombocytopenia (15 [8%] vs six [3%] for placebo). Adverse events leading to death occurred in 18 patients in the ombrabulin group and 10 patients in the placebo group. INTERPRETATION: The combination of ombrabulin and cisplatin significantly improved progression-free survival; however, it did not show a sufficient clinical benefit in patients with advanced soft-tissue sarcomas to support its use as a therapeutic option. Predictive biomarkers are needed for the rational clinical development of tumour vascular-disrupting drugs for soft-tissue sarcomas. FUNDING: Sanofi.


Assuntos
Cisplatino/administração & dosagem , Sarcoma/tratamento farmacológico , Serina/análogos & derivados , Adulto , Idoso , Idoso de 80 Anos ou mais , Antraciclinas/administração & dosagem , Intervalo Livre de Doença , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Ifosfamida/administração & dosagem , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Sarcoma/patologia , Serina/administração & dosagem , Resultado do Tratamento
16.
Ann Surg Oncol ; 22(9): 2948-57, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25608769

RESUMO

BACKGROUND: Recurrent, metastatic, and locally advanced gastrointestinal stromal tumors (GISTs) can be treated successfully with imatinib mesylate. Surgery for residual disease has been suggested for nonrefractory metastatic GISTs to reduce the probability of resistant recurrent clones, although no randomized Phase III trial has been performed to answer the question about its benefit. We carried out an analysis of the outcome of patients with recurrent unresectable locally advanced or metastatic imatinib-sensitive priamary GIST in 14 institutions in Spain. We compared two cohorts: treated or not treated with surgery after partial response or stabilization by imatinib. PATIENTS AND METHODS: Data were obtained from the online GIST registry of the Spanish Group for Research in Sarcomas. Selected patients were then divided into two groups: group A, treated initially only with imatinib, and group B, treated additionally with metastasectomy. Baseline characteristics between groups were compared, and univariate and multivariate analysis for progression-free survival and overall survival (OS) were performed. RESULTS: Analysis was undertaken in 171 patients considered nonrefractory to imatinib. The median follow-up time was 56.6 months. Focusing on OS, the Eastern Cooperative Oncology Group performance status different than 0, extent of disease limited to one metastatic organ, and comparison between groups A or B achieved statistical difference in the multivariate analysis. Median survival was 59.9 months in group A and 87.6 months in group B. CONCLUSIONS: Based in its benefit in OS, our study supports surgery of metastatic disease in GIST patients who respond to imatinib therapy.


Assuntos
Antineoplásicos/uso terapêutico , Tumores do Estroma Gastrointestinal/cirurgia , Mesilato de Imatinib/uso terapêutico , Metastasectomia/mortalidade , Recidiva Local de Neoplasia/cirurgia , Terapia Combinada , Feminino , Seguimentos , Tumores do Estroma Gastrointestinal/tratamento farmacológico , Tumores do Estroma Gastrointestinal/mortalidade , Tumores do Estroma Gastrointestinal/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
17.
Cir Esp ; 92(8): 525-31, 2014 Oct.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-24726340

RESUMO

AIM: Today, free margin surgery is the gold-standard management for soft-tissue sarcoma patients and one of the most important predictors of recurrence and survival. To obtain optimal results, a multidisciplinary approach is necessary. The aim of this study was to evaluate the evolution of patients with RPS treated by «en bloc«surgical resection versus those treated with enucleation in the first surgery. METHODS: Fifty-six adult patients were divided into 2 groups. Patients in Group A underwent enucleation surgery, and patients in Group B underwent en bloc surgery. The endpoints of the study were survival time and time to recurrence, according to histological type and first surgical strategy. RESULTS: Disease-free survival was longer for en bloc surgery (P<0,05), but there was no difference in overall survival. When comparing the histology of patients who underwent enucleation surgery and en bloc resection surgery, the disease-free survival and overall survival rates were longer for liposarcoma. In the multivariate analysis, only free margins and histology of liposarcoma were significantly associated with a better survival. CONCLUSIONS: The surgical management of patients with retroperitoneal sarcoma must be very aggressive, often requiring multivisceral resection. Considering the disease-free survival and overall survival rates obtained, it is clear that it is critical to manage patients as early as possible by a radical en bloc surgery.


Assuntos
Neoplasias Retroperitoneais/cirurgia , Sarcoma/cirurgia , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Retroperitoneais/mortalidade , Sarcoma/mortalidade , Procedimentos Cirúrgicos Operatórios/métodos
18.
Diagnostics (Basel) ; 14(11)2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38893721

RESUMO

Poor long-term survival in localized high-risk soft tissue sarcomas (STSs) of the extremities and trunk highlights the need to identify new prognostic factors. CXCR4 is a chemokine receptor involved in tumor progression, angiogenesis, and metastasis. The aim of this study was to evaluate the association between CXCR4 expression in tumor tissue and survival in STSs patients treated with neoadjuvant therapy. CXCR4 expression was retrospectively determined by immunohistochemical analysis in serial specimens including initial biopsies, tumors post-neoadjuvant treatment, and tumors after relapse. We found that a positive cytoplasmatic expression of CXCR4 in tumors after neoadjuvant treatment was a predictor of poor recurrence-free survival (RFS) (p = 0.003) and overall survival (p = 0.019) in synovial sarcomas. We also found that positive nuclear CXCR4 expression in the initial biopsies was associated with poor RFS (p = 0.022) in undifferentiated pleomorphic sarcomas. In conclusion, our study adds to the evidence that CXCR4 expression in tumor tissue is a promising prognostic factor for STSs.

19.
J Clin Oncol ; 42(8): 898-906, 2024 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-38232337

RESUMO

PURPOSE: A randomized trial was conducted to compare neoadjuvant standard (S) anthracycline + ifosfamide (AI) regimen with histology-tailored (HT) regimen in selected localized high-risk soft tissue sarcoma (STS). The results of the trial demonstrated the superiority of S in all STS histologies except for high-grade myxoid liposarcoma (HG-MLPS) where S and HT appeared to be equivalent. To further evaluate the noninferiority of HT compared with S, the HG-MLPS cohort was expanded. PATIENTS AND METHODS: Patients had localized high-grade (cellular component >5%; size ≥5 cm; deeply seated) MLPS of extremities or trunk wall. The primary end point was disease-free survival (DFS). The secondary end point was overall survival (OS). The trial used a noninferiority Bayesian design, wherein HT would be considered not inferior to S if the posterior probability of the true hazard ratio (HR) being >1.25 was <5%. RESULTS: From May 2011 to June 2020, 101 patients with HG-MLPS were randomly assigned, 45 to the HT arm and 56 to the S arm. The median follow-up was 66 months (IQR, 37-89). Median size was 107 mm (IQR, 84-143), 106 mm (IQR, 75-135) in the HT arm and 108 mm (IQR, 86-150) in the S arm. At 60 months, the DFS and OS probabilities were 0.86 and 0.73 (HR, 0.60 [95% CI, 0.24 to 1.46]; log-rank P = .26 for DFS) and 0.88 and 0.90 (HR, 1.20 [95% CI, 0.37 to 3.93]; log-rank P = .77 for OS) in the HT and S arms, respectively. The posterior probability of HR being >1.25 for DFS met the Bayesian monitoring cutoff of <5% (4.93%). This result confirmed the noninferiority of trabectedin to AI suggested in the original study cohort. CONCLUSION: Trabectedin may be an alternative to standard AI in HG-MLPS of the extremities or trunk when neoadjuvant treatment is a consideration.


Assuntos
Lipossarcoma Mixoide , Sarcoma , Neoplasias de Tecidos Moles , Adulto , Humanos , Terapia Neoadjuvante , Lipossarcoma Mixoide/tratamento farmacológico , Trabectedina/uso terapêutico , Polônia , Teorema de Bayes , Ifosfamida/uso terapêutico , Sarcoma/terapia , Neoplasias de Tecidos Moles/terapia , Antibióticos Antineoplásicos/uso terapêutico , Antraciclinas/uso terapêutico , Itália
20.
Invest New Drugs ; 31(1): 145-51, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22539091

RESUMO

BACKGROUND: Tasisulam sodium (hereafter tasisulam), a novel anticancer agent, is being studied in a broad range of tumors. The primary objective of this phase II study was to determine progression-free survival (PFS) in patients with 1 or 2 prior chemotherapy regimens for unresectable/metastatic soft tissue sarcoma (STS). Secondary objectives included objective response rate (ORR), clinical benefit rate (CBR), overall survival (OS), pharmacokinetics, and safety. METHODS: Tasisulam was administered intravenously on day 1 of 21-day cycles according to a lean body weight-based dosing algorithm targeting a peak plasma concentration (C(max)) of 420 µg/mL; a 360-µg/mL dose level was also explored. RESULTS: The median age of patients treated at 420 µg/mL was 58.3 years (range, 18.6-80.4; n = 63). Median PFS was 2.64 months (90 % CI, 1.41-3.38), with a 6-month PFS rate of 11 % (90 % CI, 4-17). Median OS was 8.71 months (90 % CI, 7.39-16.23); ORR, 3.2 %; and CBR, 46.0 % (stable disease, n = 27; partial response/confirmed, n = 2 [angiosarcoma and leiomyosarcoma]; partial response/unconfirmed, n = 1 [desmoplastic small round cell tumor]). The most frequent drug-related grade 3/4 toxicities in patients treated at 420 µg/mL were thrombocytopenia (27.0 %) and neutropenia (22.2 %). Incidences of grade 4 thrombocytopenia and/or neutropenia were 20.6 % in patients treated at 420 µg/mL and 15.8 % in those treated at 360 µg/mL (n = 38). CONCLUSIONS: Tasisulam at a target C(max) of 420 µg/mL on day 1 of 21-day cycles demonstrated modest activity as second-/third-line treatment in patients with STS. Grade 4 hematologic toxicity posed some challenges in these heavily pre-treated patients. Tasisulam dosing continues to be refined.


Assuntos
Antineoplásicos/uso terapêutico , Benzamidas/uso terapêutico , Sarcoma/tratamento farmacológico , Sulfonamidas/uso terapêutico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/farmacocinética , Benzamidas/farmacocinética , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sarcoma/sangue , Sulfonamidas/farmacocinética , Adulto Jovem
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