TULIO EDUARDO FLESCH PFIFFER
Índice h a partir de 2011
9
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina - Médico
7 resultados
Resultados de Busca
Agora exibindo 1 - 7 de 7
- Phase II trial of metformin and paclitaxel for patients with gemcitabine-refractory advanced adenocarcinoma of the pancreas(2015) BRAGHIROLI, Maria Ignez; FERRARI, Anezka C. R. de Celis; PFIFFER, Tulio Eduardo; ALEX, Alexandra Kichfy; NEBULONI, Daniela; CARNEIRO, Allyne S.; CAPARELLI, Fernanda; SENNA, Luiz; LOBO, Juliana; HOFF, Paulo Marcelo; RIECHELMANN, Rachel P.Background: In patients with adenocarcinoma of the pancreas, there are no standard second-line regimens. Many pre-clinical studies have shown that metformin alone or when combined with paclitaxel has antitumour effects on this tumour. We have tested here the combination of paclitaxel and metformin for patients with gemcitabine-refractory pancreatic cancer. Methods: An uncontrolled phase II trial was carried out based on a two-stage Simon's design, with metformin and paclitaxel for patients with locally advanced or metastatic pancreatic cancer whose disease had progressed during first line treatment with a gemcitabine-based regimen. The primary endpoint was the disease control rate at eight weeks as per response evaluation criteria in solid tumours (RECIST) 1.1. Patients received paclitaxel 80 mg/m(2) weekly for three weeks every 28 days and metformin 850 mg p.o. t.i.d. continuously until progression or intolerance state was reached. Results: Twenty patients were enrolled from July 2011 to January 2014: N = 6 (31.6%) achieved the primary endpoint, with all presenting stable disease. Median overall survival (OS) was 128 days (range 17-697) and the median progression free survival (PFS) was 44 days (range 14-210). Eight patients (40%) presented treatment-related G3-4 toxicities with the most common one being diarrhoea. Conclusions: Despite the encouraging pre-clinical evidence of the antitumour activity of metformin in adenocarcinoma of the pancreas, the primary endpoint of the disease control rate was not met. Besides, the treatment combination was poorly tolerated and could not be studied further. This study highlights the importance of performing clinical trials to reassure preclinical or observational data.
conferenceObject Phase II trial of inetforrnin and paclitaxel for patients with gemcitabine-refractory advanced adenocarcinoma of the pancreas(2014) FERRARI, Anezlca Carvalho Rubin De Celia; PFIFFER, Tulio Eduardo Flesch; ALEX, Alexandra Khichfy; NEBULONL, Danielle R.; CARNELRO, Allyne Q.; CAPARELL, Fernanda Cunha; LEITE, Luiz Antonio Senna; BRAGHIROLI, Maria Ignez Freitas Meiro; LOBO, Juliana; HOFF, Paulo Marcelo; RIECHELMANN, Rachel PimentaconferenceObject High-grade extrapulmonary neuroendocrine carcinomas and small cell lung cancer: Different entities, same treatment.(2015) REGO, Juliana Florinda De Mendonga; MEDEIROS, Raphael Salles S.; BRAGHIROLI, Maria Ignez Freitas Melro; GALVAO, Breno; BEZERRA NETO, Joao Evangelista; MUNHOZ, Rodrigo Ramella; GUERRA, Juliana Mariotti; KIMURA, Lidia; NONOGAKI, Suely; PFIFFER, Tulio Eduardo Flesch; CASTRO, Gilberto; HOFF, Paulo Marcelo; ROCHA FILHO, Duilio; COSTA, Frederico; RIECHELMANN, Rachel PimentaconferenceObject Pretreatment neutrophil to lymphocyte ratio and prognosis of patients with advanced hepatocelullar carcinoma treated with sorafenib.(2014) FONSECA, Leonardo Gomes; BARROSO-SOUSA, Romualdo; BLANCO, Bruna Paccola; VALENTE, Gabriel Luls; BRAGHLROLL, Maria Ignez Freltas Melro; PFIFFER, Tullo Eduardo Flesch; SABBAGA, Jorge; HOFF, Paulo Marcelo- Expression of ERCC1, Bcl-2, Lin28a, and Ki-67 as biomarkers of response to first-line platinum-based chemotherapy in patients with high-grade extrapulmonary neuroendocrine carcinomas or small cell lung cancer(2017) REGO, Juliana Florinda de M; MEDEIROS, Raphael Salles Scortegagna de; BRAGHIROLI, Maria Ignez; GALVAO, Breno; BEZERRA NETO, Joao Evangelista; MUNHOZ, Rodrigo Ramella; GUERRA, Juliana; NONOGAKI, Suely; KIMURA, Lidia; PFIFFER, Tulio Eduardo; CASTRO JR., Gilberto de; HOFF, Paulo Marcelo; FILHO, Duilio Rocha; COSTA, Frederico Perego; RIECHELMANN, Rachel P.Background: Small cell lung cancer (SCLC) and high-grade extrapulmonary neuroendocrine carcinomas (EPNEC) share similar histopathological features and treatment, but outcomes may differ. We evaluated in our study the expression of biomarkers associated with response rate (RR) to chemotherapy and overall survival (OS) for these entities. Materials and Methods: This is a multicentre retrospective analysis of advanced EPNEC and SCLC patients treated with platinum-based chemotherapy. Paraffin-embedded tumour samples were reviewed by a single pathologist and tested for immunohistochemistry (IHC) expression of Ki-67, ERCC1, Bcl-2, and Lin28a. All images were evaluated by the same radiologist and RR was determined by RECIST 1.1. Results: From July, 2006 to July, 2014, 142 patients were identified, being 82 (57.7%) SCLC and 60 (42.3%) EPNEC. Clinical characteristics and median Ki-67 (SCLC: 60%; EPNEC: 50%; p = 0.86) were similar between the groups. RR was higher for SCLC patients (86.8% versus 44.6%; p<0.001), but median OS was similar (10.3 months in SCLC and 11.1 months in EPNEC; HR 0.69, p = 0.07). Bcl-2 expression was higher in SCLC patients (46.3% versus 28.3%, p = 0.03) and was associated with worse prognosis in EPNEC (median OS 8.0 months versus 14.7 months; HR 0.47, p = 0.02). Conclusion: EPNEC patients presented inferior RR to platinum-based chemotherapy than SCLC but tended to live longer. Neither ERCC1, Lin28, or Ki-67 were prognostic or predictive for RR in EPNEC or SCLC. High Bcl-2 expression was associated with poor prognosis in EPNEC patients.
conferenceObject Predictive Biomarkers of Response in Patients with Extrapulmonary Neuroendocrine Tumors (EPNET) Treated with Platin-Based Chemotherapy(2014) REGO, J. F.; MEDEIROS, R.; I, M. Braghiroli; BEZERRA NETO, J. E.; MUNHOZ, R.; PFIFFER, T.; GALVAO, B.; SIQUEIRA, S.; HOFF, P.; RIECHELMANN, R.conferenceObject Evaluation of predictive biomarkers of response and prognosis in patients with high-grade extrapulmonary neuroendocrine carcinomas treated with platin-based chemotherapy.(2015) REGO, Juliana Florinda De Mendonga; MEDEIROS, Raphael Salles S.; BRAGHIROLI, Maria Ignez Freitas Melro; BEZERRA NETO, Joao Evangelista; MUNHOZ, Rodrigo Ramella; GUERRA, Juliana Mariotti; KIMURA, Lidia; NONOGAKI, Suely; PFIFFER, Tulio Eduardo Flesch; GALVAO, Breno; HOFF, Paulo Marcelo; ROCHA FILHO, Duilio; COSTA, Frederico; RIECHELMANN, Rachel Pimenta