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1.
Ann Oncol ; 29(4): 1037-1048, 2018 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-29409051

RESUMO

Background: To identify predictive markers for responders in lapatinib-treated patients and to demonstrate molecular changes during lapatinib treatment via cell-free genomics. Patients and methods: We prospectively evaluated the efficacy of combining lapatinib with capecitabine and oxaliplatin as first line neoadjuvant therapy in patients with previously untreated, HER2-overexpressing advanced gastric cancer. A parallel biomarker study was conducted by simultaneously performing immunohistochemistry and next-generation sequencing (NGS) with tumor and blood samples. Results: Complete response was confirmed in 7/32 patients (21.8%), 2 of whom received radical surgery with pathologic-confirmed complete response. Fifteen partial responses (46.8%) were observed, resulting in a 68.6% overall response rate. NGS of the 16 tumor specimens demonstrated that the most common co-occurring copy number alteration was CCNE1 amplification, which was present in 40% of HER2+ tumors. The relationship between CCNE1 amplification and lack of response to HER2-targeted therapy trended toward statistical significance (66.7% of non-responders versus 22.2% of responders harbored CCNE1 amplification; P = 0.08). Patients with high level ERBB2 amplification by NGS were more likely to respond to therapy, compared with patients with low level ERBB2 amplification (P = 0.02). Analysis of cfDNA showed that detectable ERBB2 copy number amplification in plasma was predictive to the response (100%, response rate) and changes in plasma-detected genomic alterations were associated with lapatinib sensitivity and/or resistance. The follow-up cfDNA genomics at disease progression demonstrated that there are emergences of other genomic aberrations such as MYC, EGFR, FGFR2 and MET amplifications. Conclusions: The present study showed that HER2+ GC patients respond differently according to concomitant genomic aberrations beyond ERBB2, high ERBB2 amplification by NGS or cfDNA can be a positive predictor for patient selection, and tumor genomic alterations change significantly during targeted agent therapy.


Assuntos
Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/genética , Antineoplásicos/uso terapêutico , Lapatinib/uso terapêutico , Receptor ErbB-2/genética , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Sistema Livre de Células , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
2.
Ann Oncol ; 25(10): 2036-2041, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25009013

RESUMO

BACKGROUND: E2303 evaluated cetuximab, paclitaxel, and carboplatin used as induction therapy and concomitant with radiation therapy in patients with stage III/IV head and neck squamous cell carcinoma (HNSCC) determining pathologic complete response (CR), event-free survival (EFS), and toxicity. PATIENTS AND METHODS: Patients with resectable stage III/IV HNSCC underwent induction therapy with planned primary site restaging biopsies (at week 8 in clinical complete responders and at week 14 if disease persisted). Chemoradiation (CRT) began week 9. If week 14 biopsy was negative, patients completed CRT (68-72 Gy); otherwise, resection was carried out. p16 protein expression status was correlated with response/survival. RESULTS: Seventy-four patients were enrolled; 63 were eligible. Forty-four (70%) were free of surgery to the primary site, progression, and death 1-year post-treatment. Following induction, 41 (23 CR) underwent week 8 primary site biopsy and 24 (59%) had no tumor (pathologic CR). Week 14 biopsy during chemoradiation (50 Gy) in 34 (15 previously positive biopsy; 19 no prior biopsy) was negative in 33. Thus 90% of eligible patients completed CRT. Overall survival and EFS were 78% and 55% at 3 years, respectively. Disease progression in 23 patients (37%) was local only in 10 (16%), regional in 5 (8%), local and regional in 2 (3%), and distant in 5 patients (8%). There were no treatment-related deaths. Toxicity was primarily hematologic or radiation-related. p16 AQUA score was not associated with response/survival. CONCLUSIONS: Induction cetuximab, paclitaxel, and carboplatin followed by the same drug CRT is safe and induces high primary site response and promising survival. CLINICAL TRIALS NUMBER: NCT 00089297.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Carboplatina/administração & dosagem , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Paclitaxel/administração & dosagem , Adulto , Idoso , Anticorpos Monoclonais Humanizados/efeitos adversos , Cetuximab , Quimiorradioterapia , Intervalo Livre de Doença , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Células Epiteliais/efeitos dos fármacos , Células Epiteliais/patologia , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Paclitaxel/efeitos adversos
3.
Ann Oncol ; 24(8): 2124-31, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23406730

RESUMO

BACKGROUND: We sought to determine biomarker expression differences in head and neck squamous cell cancers (HNSCCs) based on p16/human papillomavirus (HPV) classification. In addition, our aim was to explore how expression of biomarkers is modulated after E6/E7 repression in HPV16⁺ oropharyngeal cancer cells. METHODS: HPV16⁺ and HPV⁻ HNSCC cells were infected with retroviruses expressing short hairpin RNA targeting HPV16 E6/E7. Components of the epidermal growth factor receptor (EGFR) pathway before and after E6/E7 gene silencing were analyzed by immunoblotting and qRT-PCR. Protein expression of 13 biomarkers was analyzed using AQUA on a tissue microarray (TMA). The HPV16 status was determined using HPV16 in situ hybridization (ISH). RESULTS: In HPV16⁺ cells, E6/E7 silencing was associated with PTEN upregulation and reduction of phosphorylated EGFR. Tumors were classified into four categories based on the HPV and p16 status. HPV⁺/p16⁺ tumors expressed significantly higher levels of E-cadherin (P = 0.003), PTEN (P = 0.004), lower levels of PI3Kp110 and ß-catenin (P = 0.07). There was a significant difference in overall survival (OS, P = 0.016) among the four subsets. The median OS was 24.83 months for p16⁻/HPV⁻ patients, 11.63 for p16⁻/HPV⁺ patients and was not reached for p16⁺/HPV⁻ and p16⁺/HPV⁺ groups. CONCLUSIONS: Aberrant EGFR signaling contributes to malignant conversion of HPV16⁺ HNSCC cells. These results validate ß-catenin as a distinct biomarker in HPV⁺/p16⁺ HNSCC. Wnt signaling inhibitors merit exploration in HPV⁺/p16⁺ HNSCC.


Assuntos
Carcinoma de Células Escamosas/metabolismo , Receptores ErbB/metabolismo , Neoplasias de Cabeça e Pescoço/metabolismo , Proteínas de Neoplasias/metabolismo , Neoplasias Orofaríngeas/metabolismo , beta Catenina/metabolismo , Biomarcadores Tumorais/metabolismo , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/virologia , Linhagem Celular Tumoral , Inibidor p16 de Quinase Dependente de Ciclina , Receptores ErbB/genética , Feminino , Neoplasias de Cabeça e Pescoço/genética , Neoplasias de Cabeça e Pescoço/virologia , Humanos , Masculino , Proteínas Oncogênicas Virais/genética , Proteínas Oncogênicas Virais/metabolismo , Neoplasias Orofaríngeas/genética , Neoplasias Orofaríngeas/virologia , PTEN Fosfo-Hidrolase/biossíntese , Proteínas E7 de Papillomavirus/genética , Proteínas E7 de Papillomavirus/metabolismo , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/virologia , Fosforilação , Interferência de RNA , RNA Interferente Pequeno , Proteínas Repressoras/genética , Proteínas Repressoras/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço , Proteína Supressora de Tumor p53/metabolismo , Via de Sinalização Wnt
4.
Gynecol Oncol ; 118(1): 52-7, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20406710

RESUMO

OBJECTIVE: In this phase II study the efficacy and toxicity of an alternating chemotherapy regimen was examined in platinum-resistant relapsed epithelial ovarian cancer (EOC) patients. METHODS: Forty-five patients with platinum-refractory/resistant relapsed EOC, previously treated with carboplatin+paclitaxel+/-epirubicin were included. The regimen was consisted of gemcitabine 800 mg/m(2) (days 1+8) and carboplatin AUC 5, alternating with pegylated liposomal doxorubicin 30 mg/m(2) and carboplatin AUC 5, alternating with carboplatin AUC 5 and cyclophosphamide 600 mg/m(2), every 3 weeks for a total of 9 cycles. RESULTS: Among 38 patients with measurable disease, 39.4% (95% CI: 23.2-55.7) responded (five complete response and 10 partial response), while 30 out of 40 (75%) patients assessable by CA125 criteria had a serological response. Responses were more frequent in patients with platinum-free interval (PFI) 3-6 months than in those with PFI 0-3 months, but this was not statistically-significant. After a median follow-up of 19.5 months (range, 1.0-37+ months) the median progression-free survival was 7.1 months (95% CI: 3.4-10.8) and the median survival (OS) was 18.8 months (95% CI: 15.6-22.0). For patients with PFI 0-3 months PFS was 4.3 (95% CI: 0.8-7.8) months, while for those with PFI 3-6 months PFS was 8.9 (95% CI: 5.3-12.4) months (p=0.062). The regimen was well-tolerated and the main grade 3-4 toxicity was myelosuppression, palmar-plantar erythrodysesthesia, allergy and fatigue. CONCLUSION: This alternating regimen, including carboplatin, gemcitabine, liposomal doxorubicin and cyclophosphamide, is an active and well-tolerated treatment in platinum relapsed/refractory EOC patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Intervalo Livre de Doença , Doxorrubicina/administração & dosagem , Doxorrubicina/efeitos adversos , Doxorrubicina/análogos & derivados , Esquema de Medicação , Resistencia a Medicamentos Antineoplásicos , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias Ovarianas/patologia , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/efeitos adversos , Estudos Prospectivos , Taxa de Sobrevida , Gencitabina
5.
Gynecol Oncol ; 115(1): 97-101, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19615725

RESUMO

OBJECTIVE: The objective of this retrospective study was to determine the clinical outcomes of patients with primary fallopian tube carcinoma (PFTC) treated with paclitaxel and platinum analogue-based combination chemotherapy following primary cytoreductive surgery. METHODS: Sixty-four patients with the diagnosis of PFTC were identified through the gynecology service database and the tumor registry of 4 different institutions. The majority of patients (48/64, 75%) were treated with carboplatin AUC (area under curve) 6 and paclitaxel 175 mg/m(2) as a 3 h infusion. RESULTS: Among 28 patients with measurable disease, we observed 19 (68%) complete clinical and 7 (25%) partial responses for an overall response rate of 93%. After a median follow-up of 40 months (3+-134+ months), the 5-year survival rate of the entire population was 70% (median overall survival [mOS] not reached) and the median time to tumor progression (mTTP) was 81 months (95% CI: 53-109). Stage and residual disease were of prognostic significance. The mTTP was not reached in patients with stage I/II and was 38 months for patients with stage III/IV (p=0.004). The mOS for patients with stage I/II was not reached, whereas it was 62 months for those with stage III/IV (p=0.057). The mTTP was 86 and 23 months for patients with residual disease <2 cm and >2 cm, respectively (p<0.001). The mOS was not reached for patients with residual disease <2 cm, while it was 36 months for residual disease >2 cm (p<0.001). CONCLUSION: Optimally cytoreduced patients with PFTC treated with platinum and paclitaxel-based chemotherapy regimen have an excellent possibility of survival.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias das Tubas Uterinas/tratamento farmacológico , Neoplasias das Tubas Uterinas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carboplatina/administração & dosagem , Cisplatino/administração & dosagem , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Doxorrubicina/administração & dosagem , Neoplasias das Tubas Uterinas/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Paclitaxel/administração & dosagem , Estudos Retrospectivos , Resultado do Tratamento
6.
Anticancer Res ; 29(2): 737-44, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19331230

RESUMO

BACKGROUND: Various prognostic factors have been investigated in order to predict the minority of male germ cell tumor (GCT) patients who will develop resistant disease. However, no prognostic system has been proven accurate. MATERIALS AND METHODS: Paraffin-embedded tissue specimens, obtained from primary lesions during the initial diagnosis of 83 advanced chemotherapy-treated GCT male patients, were stained for 7 immunohistochemical markers: p53, bax, bcl-2, MIB-1, topoisomerase IIa, c-kit and COX-2. The percentage of positive cells for each marker was measured for each patient. Cox regression was used for the prognostic factor analysis. RESULTS: All patients were followed for a median of 4 years. Nineteen patients had seminoma and 64 non-seminomatous GCT. In univariate analysis, only p53 (hazard ratio (HR) = 4.01, 95% confidence interval (CI) = 1.25-12.84, p = 0.019) and MIB-1 (HR = 3.16, 95% CI = 1.06-9.45, p = 0.039) were found to be prognostic for disease-specific survival. The best prognostic cut-off values of p53 and MIB-1 were 10% and 30% respectively. In multivariate analysis, these two markers obtained independent significance only when considered in combination (HR = 6.63, 95% CI = 1.40-31.41, p = 0.017, for patients with one or both markers above their cut-off), while the International Germ Cell Consensus Cancer Group (IGCCCG) risk was the most significant (HR = 7.99, 95% CI = 1.96-32.52, p = 0.004, for the high-risk group). However, the expression of these markers seemed to be significantly correlated with known prognostic factors. Nevertheless, we identified 34 patients of low IGCCCG risk expressing both markers below their cut-off with excellent survival. CONCLUSION: Among 7 immunohistochemical markers, p53 and MIB-1 demonstrated prognostic significance. Their combination may contribute to improvement of the accuracy of the currently approved prognostic system (IGCCCG).


Assuntos
Neoplasias Embrionárias de Células Germinativas/metabolismo , Neoplasias Testiculares/metabolismo , Proteína Supressora de Tumor p53/biossíntese , Ubiquitina-Proteína Ligases/biossíntese , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores Tumorais/biossíntese , Humanos , Imuno-Histoquímica , Masculino , Neoplasias Embrionárias de Células Germinativas/tratamento farmacológico , Prognóstico , Neoplasias Testiculares/tratamento farmacológico
7.
Cancer Treat Rev ; 34(1): 1-12, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17945423

RESUMO

Ovarian granulosa cell tumors (GCTs) are uncommon neoplasms that arise from the sex-cord stromal cells of the ovary. GCTs are characterized by long natural history and their tendency to recur years after the initial diagnosis. They present with symptoms and signs due to estradiol secretion, including vaginal bleeding and precocious puberty. Occasionally, tumor rupture causes abdominal pain and hemoperitoneum. GCT is usually associated with a mass on pelvic examination which is subsequently confirmed with imagine techniques. Surgery is the mainstay of initial management for histological diagnosis, appropriate staging and debulking surgery. In patients with stage I disease and those in reproductive age a more conservative unilateral salpingo-oophorectomy is indicated. In postmenopausal women and those with more advanced disease a total abdominal hysterectomy with bilateral salpingo-oophorectomy is the appropriate surgical treatment. The most important prognostic factor associated with a higher risk of relapse is the stage of disease. The role of post-operative chemo- or radiotherapy in stage I disease and those with completely resected tumor has not been defined. Nevertheless, the use of adjuvant chemotherapy or radiotherapy has sometimes been associated with prolonged disease-free survival and possibly overall survival. Chemotherapy should be considered for patients with advanced, recurrent or metastatic disease and the BEP (bleomycin, etoposide, cisplatin) is the currently preferable regimen. Although overall response rate (RR) is high, the impact on disease-free or overall survival is unknown. Due to their tendency to recur years after the initial diagnosis, prolonged surveillance is essential.


Assuntos
Tumor de Células da Granulosa/diagnóstico , Tumor de Células da Granulosa/terapia , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores Tumorais/análise , Quimioterapia Adjuvante , Terapia Combinada , Intervalo Livre de Doença , Estradiol/análise , Feminino , Tumor de Células da Granulosa/patologia , Humanos , Recidiva Local de Neoplasia , Prognóstico , Radioterapia Adjuvante
8.
Cancer Treat Rev ; 34(5): 427-41, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18378402

RESUMO

PURPOSE: Malignant ovarian germ cell tumors (MOGCTS) are rare but curable at all stages of disease. This review gives an outline of the management of this disease. METHODS: We performed a literature search in the PubMed of almost all relevant articles concerning MOGCTs on pathology, prognostic factors, surgery, post-operative therapy and late effects of therapy. The available literature is mainly composed of retrospective reviews and articles. RESULTS: Prognostic factors include stage, amount of residual tumor, histologic type and raised tumor markers. For patients with early stage disease, cure rates approach 100%, while for those with advanced-stage disease are at least 75%. Appropriate surgical treatment for patients where fertility needs to be preserved consists in laparotomy with unilateral salpingo-oophorectomy (USO) and resection of all visible disease. For patients with advanced-stage disease, the role and the extent of debulking surgery remain controversial despite its routine use. However, it is suggested a benefit from minimal residual disease at completion of primary surgical cytoreduction with both non-platinum and platinum-based chemotherapy regimens. Second-look surgery clearly is not indicated in patients with early stage non-dysgerminoma or in all patients with dysgerminoma. However, teratoma patients may benefit from secondary cytoreduction. Three courses of bleomycin, etoposide and cisplatin (BEP) is the current standard adjuvant chemotherapy and four courses of BEP are recommended in case of bulky residual tumor after surgery. More evidence is required to show that surveillance is a safe option. There is a hint that high-dose chemotherapy may play a role in relapsed patients. The majority of MOGCTs patients who undergo fertility-sparing surgery and chemotherapy retain their gonadal and reproductive function. There is an increasing concern about life-threatening long-term effects of treatment. CONCLUSION: MOGCTs are rare neoplasms that affect girls and young women and have excellent prognosis at all stages of disease with optimal therapy. The majority of MOGCTs patients retain their reproductive function.


Assuntos
Neoplasias Embrionárias de Células Germinativas/patologia , Neoplasias Ovarianas/patologia , Terapia Combinada/métodos , Feminino , Saúde Global , Humanos , Incidência , Estadiamento de Neoplasias , Neoplasias Embrionárias de Células Germinativas/epidemiologia , Neoplasias Embrionárias de Células Germinativas/terapia , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/terapia , Prognóstico , Taxa de Sobrevida
9.
Gynecol Oncol ; 109(2): 250-4, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18299146

RESUMO

OBJECTIVES: The purpose of this study was to evaluate the activity and toxicity of carboplatin and paclitaxel combination in advanced or recurrent endometrial carcinoma. METHODS: Forty-seven eligible patients with measurable advanced or recurrent endometrial carcinoma were treated with carboplatin [area under the curve (AUC) 5] and paclitaxel 175 mg/m(2) every 3 weeks for 6-9 cycles or until disease progression or unacceptable toxicity. RESULTS: There were 10 complete responses (CRs) (21%) and 19 partial responses (PRs) (41%) for an overall response rate (RR) of 62% (29 patients) (95% confidence interval [CI], 47-76%). The median progression-free survival (PFS) was 15 months (95% CI, 7.3-22.7 months) and the median overall survival (OS) was 25 months (95% CI, 19.0-31.0 months). No difference was found in RR and OS in patients with primary advanced disease and those with recurrent tumors. Similarly, no difference was found in PFS and OS for patients with serous/clear tumors and those with endometrioid tumors. Toxicity was generally mild except for myelotoxicity. Neutropenia grade 3/4 was recorded in 36% of patients and 6% experienced febrile neutropenia. One patient each developed grade 4 thrombocytopenia and anemia. Grade 3 sensory neuropathy was recorded in 6% of patients. CONCLUSION: The combination of carboplatin and paclitaxel appears to have activity in advanced or recurrent endometrial carcinoma with an acceptable toxicity profile.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Neoplasias do Endométrio/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Antineoplásicos Fitogênicos/efeitos adversos , Antineoplásicos Fitogênicos/uso terapêutico , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Carcinoma/patologia , Carcinoma/secundário , Progressão da Doença , Intervalo Livre de Doença , Neoplasias do Endométrio/patologia , Feminino , Humanos , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Paclitaxel/efeitos adversos , Paclitaxel/uso terapêutico , Resultado do Tratamento
10.
Anticancer Res ; 28(4C): 2317-20, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18751412

RESUMO

The case of a young man with stage IV chemoresistant pure seminoma overexpressing KIT, who achieved complete remission (CR) after the administration of imatinib mesylate (400 mg once daily), along with a third-line chemotherapy regimen, consisting of paclitaxel (150 mg/m2), oxaliplatin (100 mg/m2) and gemcitabine (800 mg/m2) every 2 weeks with granulocyte colony-stimulating factor (G-CSF) support is reported. The patient had received first- and second-line regimens consisting of ifosfamide, bleomycin, etoposide cisplatin (5 cycles, every 3 weeks) and methotrexate, vinblastine, actinomycin D, cyclophosphamide, cisplatin (3 cycles, every 3 weeks) respectively, without having normalized beta-human chorionic gonadotrophin (beta-HCG) levels. Following treatment with imatinib plus third-line chemotherapy (paclitaxel, oxaliplatin, gemcitabine), the levels of beta-HCG were reduced to within the normal limits during the first month of treatment. Therefore, the patient underwent surgical resection of the residual disease from the retroperitoneum and liver, which proved to be only necrotic tissue. The patient is under close follow-up, with no evidence of disease, 36 months after the completion of chemotherapy and 32 months post surgery.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Seminoma/tratamento farmacológico , Neoplasias Testiculares/tratamento farmacológico , Adulto , Benzamidas , Bleomicina/administração & dosagem , Cisplatino/administração & dosagem , Terapia Combinada , Ciclofosfamida/administração & dosagem , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Humanos , Ifosfamida/administração & dosagem , Mesilato de Imatinib , Masculino , Compostos Organoplatínicos/administração & dosagem , Oxaliplatina , Paclitaxel/administração & dosagem , Piperazinas/administração & dosagem , Pirimidinas/administração & dosagem , Seminoma/cirurgia , Neoplasias Testiculares/cirurgia , Gencitabina
11.
Anticancer Res ; 28(2B): 1421-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18505090

RESUMO

BACKGROUND: Granulosa cell tumors (GCT) are rare malignant neoplasms of the ovaries with, usually, indolent biological behavior. PATIENTS AND METHODS: The epidemiological, clinical and pathological features of 34 patients with adult GCT, from the registry of the HeCOG, were analyzed retrospectively for their prognostic significance. RESULTS: The median age was 51 years with post- to premenopausal ratio=l.8 and median size of the tumor 10 cm. Forty-seven % had a low mitotic index (1-3 mitoses/10 high-power fields, HPFs) and 48% had International Federation of Obstetrics and Gynecology (FIGO) stage IA. After 34.5 months of median follow-up, the estimated 5-year and 10-year progression-free survival (PFS) was 78% and 65%, respectively, while both the 5- and 10-year overall survival (OS) was 89%. The stage and the presence of residual disease after surgery had prognostic significance for OS in the univariate analysis. Out of 19 patients whose disease was completely resected, the median disease-free survival (DFS) was 11 months. Only rupture of the tumor during surgery had prognostic significance for DFS in the univariate analysis. Seven out of 13 evaluable patients with unresectable disease responded to first-line chemotherapy (CT), 6 of them completely, while three patients responded to second-line chemotherapy. All the responders were retreated with platinum-based CT and one of them was platinum-insensitive. All the patients receiving second-line non-platinum CT developed progressive disease (PD). CONCLUSION: The only curative treatment of GCT is complete surgical resection of all visible disease, while platinum-based CT is the most effective first-line, as well as second-line treatment.


Assuntos
Tumor de Células da Granulosa/patologia , Neoplasias Ovarianas/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Tumor de Células da Granulosa/terapia , Humanos , Pessoa de Meia-Idade , Neoplasias Ovarianas/terapia , Prognóstico , Estudos Retrospectivos
12.
J BUON ; 13(2): 277-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18555478

RESUMO

Malignant lymphoma of the bladder is a rare entity which usually presents with nonspecific urologic symptoms such as dysuria, haematuria, nocturia and abdominal pain. Urologists should be familiar with the management of this disease as surgery alone often is not adequate treatment. We present herein 2 cases of non-Hodgkin's lymphoma (NHL) of the bladder and discuss their clinical-pathological features and management.


Assuntos
Linfoma de Células B/complicações , Neoplasias da Bexiga Urinária/complicações , Humanos , Linfoma de Células B/tratamento farmacológico , Linfoma de Células B/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/patologia
13.
Cancer Treat Rev ; 33(2): 177-90, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17196749

RESUMO

Endometrial cancer is one of the most common gynecologic malignancies. In patients with advanced or recurrent endometrial cancer survival is greatly diminished. Hormonal therapy and chemotherapy play a major role in the management of advanced or recurrent endometrial cancer. Endocrine therapy provides a 10-20% response rate (RR) and survival of less than 1 year. Combination chemotherapy offers a RR of 40-60%, but the survival is still less than 1 year. The combination of cisplatin plus doxorubicin is the most commonly used regimen, but carboplatin plus paclitaxel represents an efficacious, low toxicity regimen in advanced or recurrent endometrial cancer. The addition of paclitaxel to cisplatin plus doxorubicin appears to improve response rates, progression-free survival and overall survival, but to worsen toxicity profile. At this time the focus of future research should be on the use of novel targeted agents, since it is unlikely that further significant advances could be made with chemotherapy and endocrine therapy. mTOR inhibitors represent a promising therapeutic strategy for endometrial cancer. Anti-HER-2/neu targeted therapy might be a novel and attractive therapeutic option in patients with biologically aggressive variants (uterine serous papillary carcinoma, clear cell carcinoma) of endometrial cancer. Research in better understanding the signal transduction pathways in endometrial carcinogenesis will allow the development of specific and selective molecularly targeted inhibitors.


Assuntos
Adenocarcinoma/tratamento farmacológico , Antineoplásicos/uso terapêutico , Neoplasias do Endométrio/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Adenocarcinoma/secundário , Neoplasias do Endométrio/patologia , Feminino , Humanos
14.
Oncology ; 72(3-4): 211-8, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18176086

RESUMO

BACKGROUND: The purpose of this retrospective study was to present the epidemiological and clinical characteristics of 24 patients with Merkel cell carcinoma of the skin (MCC) and their response to various therapeutic modalities. METHODS: The tumor registry of the Hellenic Cooperative Oncology Group was used to identify patients with MCC diagnosed between 1986 and 2006. RESULTS: The most frequent primary sites were the extremities (50%), followed by the head (33%) and the trunk (17%). Median time of follow-up was 24 months. Sixteen patients were initially diagnosed with stage I, 5 patients with stage II, and 3 patients with stage III (metastatic) disease. Six patients with stage I disease received adjuvant chemotherapy (CT) and/or radiotherapy (RT). All patients with stage I disease treated only with surgery relapsed, whereas 33% of the patients treated with adjuvant therapy recurred. All patients with stage II disease received adjuvant treatment. Among them, 2 patients relapsed. Disease-free survival (DFS) and overall survival (OS) did not differ significantly between patients with stage I and II disease (stage I: 4-year DFS 27%, 4-year OS 56%; stage II: 4-year DFS 60%, 4-year OS 80%). Patients treated with adjuvant therapy had significantly better DFS than those treated only with surgery (p = 0.012), but OS did not differ significantly (adjuvant group: 4-year DFS 59%, 4-year OS 74%; surgery group: 4-year DFS 10%, 4-year OS 50%). Eleven patients with locally advanced or metastatic disease received CT. The response rate was 73% (complete remission 18%), median progression-free survival was 10 months and median OS was 14 months. Complete remission was achieved in 2 other cases, with the addition of RT after CT. CONCLUSIONS: MCC is an aggressive neoplasm with significant chemosensitivity and radiosensitivity, but poor outcome. The role of adjuvant treatment should be further investigated.


Assuntos
Carcinoma de Célula de Merkel/terapia , Neoplasias Cutâneas/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Célula de Merkel/epidemiologia , Carcinoma de Célula de Merkel/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/mortalidade , Análise de Sobrevida , Resultado do Tratamento
15.
Anticancer Res ; 27(4C): 3025-8, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17695491

RESUMO

Aplastic anemia is a rare immune-mediated complication of thymoma. Thymomas, especially of the cortical type, have the capacity to generate mature T-cells from their immature precursors. Furthermore, mature intratumorous T-cells have an increased autoantigen-specific potential. We present the case of a 75-year-old patient with an inoperable cortical thymoma who developed aplastic anemia 7 years after the initial diagnosis. The infiltration of the bone marrow by these cells was accompanied by the production of cytokines such as tumor necrosis factor alpha (TNF-alpha) in the microenvironment of bone marrow and in the serum sample. The patient was successfully treated with oral cyclosporine A for 14 months and when she died due to progression of the thymoma, 9 months after the discontinuation of cyclosporine, the aplastic anemia had not recurred.


Assuntos
Anemia Aplástica/tratamento farmacológico , Anemia Aplástica/etiologia , Ciclosporina/uso terapêutico , Timoma/complicações , Idoso , Anemia Aplástica/imunologia , Feminino , Humanos , Imunossupressores/uso terapêutico , Timoma/sangue , Timoma/imunologia
16.
Crit Rev Oncol Hematol ; 70(2): 114-23, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-18805019

RESUMO

Testicular germ cell tumors represent the most common malignancies in young males between the ages of 15 and 35; 50% of those with non-seminomatous germ cell tumors (NSGCT) have clinical stage I at diagnosis. Predictors for relapse include lymphovascular invasion, percentage of embryonal-cell carcinoma component, absence of yolk-sack histology and MIB1 proliferation rate. Therapeutic options following orchidectomy in stage I NSGCT comprise nerve-sparing retroperitoneal lymph node dissection (RPLND), surveillance or adjuvant cisplatin-based chemotherapy. Using a risk adapted approach, in about 50% of patients with clinical stage I NSGCT surveillance is favored in patients with good compliance. Adjuvant chemotherapy is recommended for patients at high risk for developing metastatic disease. Non-seminomatous germ cell testicular cancer is a curable neoplasia. All available treatment modalities produce excellent results, with a long-term survival of almost 100%. Consequently, therapy-induced toxicity is an important concern in the management of these patients. An individually tailored approach that takes into account the prognostic factor profile, as well as the patients' preferences and their ability to comply with treatment, is the key for the successful management of stage I testicular cancer.


Assuntos
Neoplasias Embrionárias de Células Germinativas/terapia , Neoplasias Testiculares/terapia , Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Ensaios Clínicos como Assunto , Humanos , Linfonodos/cirurgia , Masculino , Recidiva Local de Neoplasia , Neoplasias Embrionárias de Células Germinativas/tratamento farmacológico , Neoplasias Embrionárias de Células Germinativas/cirurgia , Orquiectomia , Prognóstico , Fatores de Risco , Neoplasias Testiculares/tratamento farmacológico , Neoplasias Testiculares/cirurgia
17.
Crit Rev Oncol Hematol ; 71(1): 22-8, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19046898

RESUMO

Seminomas constitute more than half of testicular germ-cell tumours and 70-80% of patients with seminoma present with clinical stage I disease. Post-orchiectomy, management options include irradiation, surveillance or chemotherapy. Adjuvant irradiation to the infradiaphragmatic lymph nodes is the standard of care with relapse rates of 3-4%. Long-term follow-up data have shown association with late complications (cardiotoxicity, second malignancy, fertility impairment). Surveillance is an attractive alternative but relapse rates are higher ranging between 15 and 20%. Single agent carboplatin chemotherapy has demonstrated survival data equivalent to radiotherapy but long-term relapse and toxicity data are yet to be confirmed. Routine follow-up after irradiation and the role of risk stratification also remain unclear. Highly curative rates can be attained by all three modalities. Standard treatment with radiotherapy is challenged by surveillance and chemotherapy. Toxicity issues and patients' preferences are considered when management decisions are made.


Assuntos
Seminoma/terapia , Neoplasias Testiculares/terapia , Humanos , Masculino , Recidiva , Seminoma/patologia , Neoplasias Testiculares/patologia
18.
J Androl ; 30(3): 280-6, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19136393

RESUMO

Our objective was to investigate the impact of methotrexate, paclitaxel, ifosfamide, and cisplatin (M-TIP) on long-term fertility in poor-risk nonseminomatous germ cell tumors (NSGCT). Thirty patients with poor-risk NSGCT (median age, 29 years; range, 17-62 years) were treated with methotrexate 250 mg/m(2) with folinic acid rescue (day 1) and paclitaxel 175 mg/m(2) (day 1), followed by ifosfamide 1.2 g/m(2) and cisplatin 20 mg/m(2) (days 2-6). Treatment consisted of 4 cycles of M-TIP administered every 3 weeks. Twenty-one patients were continuously disease-free at a median follow-up of 5.3 years (range, 0.9-8.4 years). Sperm count and hormonal analyses were examined prechemotherapy (30 patients) and postchemotherapy (21 patients). Counts were classified as follows: lower than 1 x 10(6)/mL, azoospermia; 1-20 x 10(6)/mL, oligospermia (OS); higher than 20 x 10(6)/mL, normospermia (NS). Patients were followed for a median of 2.3 years (range, 0.9-3.8 years) postchemotherapy. The prechemotherapy median luteinizing hormone (LH) serum levels were slightly above the upper normal limit, whereas the serum levels of follicle-stimulating hormone (FSH) and testosterone (T) were within the reference interval. Eleven (52.3%) patients had NS prechemotherapy. Among the patients with NS, 72.7% still had NS following chemotherapy. Overall, 17 of 21 (80.9%; 33.3% OS and 47.6% NS) patients had recovery of spermatogenesis after treatment. The median FSH serum levels were significantly elevated at least 1 year postchemotherapy when compared with the pretreatment levels. Eighteen months after the completion of chemotherapy the median FSH levels had returned to the reference limits. Serum LH and T levels were unaffected by chemotherapy. Prior to chemotherapy 4 of 30 patients had fathered 5 children. Since completion of chemotherapy, 5 patients have fathered 5 children. The majority of men with poor-risk germ cell tumors who were treated with the M-TIP regimen demonstrated recovery spermatogenesis after treatment, and Leydig cell function was unaffected.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Fertilidade/efeitos dos fármacos , Neoplasias Embrionárias de Células Germinativas/tratamento farmacológico , Espermatozoides/efeitos dos fármacos , Testículo/efeitos dos fármacos , Adolescente , Adulto , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Hormônio Foliculoestimulante/sangue , Humanos , Ifosfamida/administração & dosagem , Ifosfamida/efeitos adversos , Hormônio Luteinizante/sangue , Hormônio Luteinizante/efeitos dos fármacos , Masculino , Neoplasias do Mediastino/sangue , Neoplasias do Mediastino/tratamento farmacológico , Metotrexato/administração & dosagem , Metotrexato/efeitos adversos , Pessoa de Meia-Idade , Neoplasias Embrionárias de Células Germinativas/sangue , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Fatores de Risco , Espermatogênese/efeitos dos fármacos , Neoplasias Testiculares/sangue , Neoplasias Testiculares/tratamento farmacológico , Testosterona/sangue , Adulto Jovem
19.
Cancer Treat Rev ; 34(7): 603-13, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18657909

RESUMO

PURPOSE: Cervical cancer is the second most common cancer of women worldwide and one of the leading cause of death in relative young women. This review gives an outline of chemotherapy of advanced, persistent or recurrent cervical cancer. METHODS: We performed a literature search in the PubMed of almost all relevant articles concerning chemotherapy of advanced, persistent or recurrent cervical cancer. RESULTS: The available data from the literature is mainly composed of most recent reviews, phase II and randomized phase III clinical trials. CONCLUSION: Single-agent cisplatin remains the current standard therapy for advanced, persistent or recurrent cervical cancer. Several single-agents have been tested, but none has been found to be superior compared to cisplatin. Both topotecan and paclitaxel in combination with cisplatin, have yielded superior response rates and progression-free survival without diminishing patient quality of life. However, only the combination of cisplatin and topotecan has improved overall survival. It is important to identify clinical and tumor-related factors predictive of response to cisplatin-based chemotherapy. Future trials are necessary, not only to compare combinations of existing agents, but to incorporate biological agents (monoclonal antibodies or small molecules) to chemotherapy in order to improve the treatment results of advanced, persistent or recurrent cervix cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/mortalidade , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/mortalidade , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Intervalo Livre de Doença , Relação Dose-Resposta a Droga , Esquema de Medicação , Resistencia a Medicamentos Antineoplásicos , Feminino , Humanos , Dose Máxima Tolerável , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Prognóstico , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco , Análise de Sobrevida , Topotecan/administração & dosagem , Topotecan/efeitos adversos , Resultado do Tratamento , Neoplasias do Colo do Útero/patologia
20.
J Chemother ; 20(4): 513-7, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18676235

RESUMO

Ovarian lymphoma is a rare entity. Clinicians should be aware of its clinical manifestations and management since surgery alone often is not adequate treatment. Here, we present two cases of ovarian lymphoma and discuss what is known about ovarian lymphoma.


Assuntos
Linfoma/diagnóstico , Neoplasias Ovarianas/diagnóstico , Adulto , Diagnóstico Diferencial , Evolução Fatal , Feminino , Humanos , Linfoma/tratamento farmacológico , Pessoa de Meia-Idade , Neoplasias Ovarianas/tratamento farmacológico , Adulto Jovem
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