Contents
Academic literature on the topic 'Protocolos de quimioterapia combinada antineoplásica'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Protocolos de quimioterapia combinada antineoplásica.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Protocolos de quimioterapia combinada antineoplásica"
Ferreira, Anne Rodrigues, Elaine Barros Ferreira, Monica Chiodi Toscano De Campos, Paula Elaine Diniz Dos Reis, and Christiane Inocêncio Vasques. "Medidas de Biossegurança na Administração de Quimioterapia Antineoplásica: Conhecimento dos Enfermeiros." Revista Brasileira de Cancerologia 62, no. 2 (June 30, 2016): 137–45. http://dx.doi.org/10.32635/2176-9745.rbc.2016v62n2.169.
Full textRibeiro, Talita dos Santos, and Valdete Oliveira Santos. "Segurança do Paciente na Administração de Quimioterapia Antineoplásica: uma Revisão Integrativa." Revista Brasileira de Cancerologia 61, no. 2 (June 30, 2015): 145–53. http://dx.doi.org/10.32635/2176-9745.rbc.2015v61n2.554.
Full textSuguimoto, Juliana Coutinho de Paula, Renata Furlani, and Carmen Silvia Passos Lima. "Atuação da enfermagem no extravasamento de quimioterápicos: revisão de literatura." Sínteses: Revista Eletrônica do SIMTEC, no. 6 (October 27, 2016): 142. http://dx.doi.org/10.20396/sinteses.v0i6.8540.
Full textDe Lima, Anderson Gomes, José Leonardo Gomes Coelho, Maria Juliana Alves Pereira, Emanuela Machado Silva Saraiva, Raimunda Aureniza Feitosa, and Willma José De Santana. "A Prática da Farmácia Clínica em Oncologia / The Practice of Clinical Pharmacy in Oncology." ID on line REVISTA DE PSICOLOGIA 15, no. 54 (March 2, 2021): 853–60. http://dx.doi.org/10.14295/idonline.v15i54.2993.
Full textKohlsdorf, Marina, and Áderson Luiz da Costa Junior. "Estratégias de enfrentamento de pais de crianças em tratamento de câncer." Estudos de Psicologia (Campinas) 25, no. 3 (September 2008): 417–29. http://dx.doi.org/10.1590/s0103-166x2008000300010.
Full textBrasileiro, Luana do Amaral, Júlia Mouta de Oliveira, and Selma Rodrigues de Castilho. "Incidência e manejo da neutropenia em pacientes submetidas ao protocolo AC-T no tratamento adjuvante de câncer de mama." Research, Society and Development 10, no. 6 (June 7, 2021): e48310616023. http://dx.doi.org/10.33448/rsd-v10i6.16018.
Full textOliveira, Vanessa, and Leonardo Carnut. "Eficiência administrativa relacionada à condução do paciente oncológico desde o diagnóstico ao tratamento no Sistema Único de Saúde." JMPHC | Journal of Management & Primary Health Care | ISSN 2179-6750 12, spec (May 22, 2021): 1–2. http://dx.doi.org/10.14295/jmphc.v12.1082.
Full textCosta, Aline Gonçalves da, Marta Solange Camarinha Ramos Costa, Elisângela da Silva Ferreira, Priscila Cristina de Sousa, Marília Monteiro dos Santos, Danielle Etienne de Oliveira Bezerra Lima, and Aline Maria Pereira Cruz Ramos. "Conhecimento dos Profissionais de Enfermagem sobre Segurança do Paciente Oncológico em Quimioterapia." Revista Brasileira de Cancerologia 65, no. 1 (June 19, 2019). http://dx.doi.org/10.32635/2176-9745.rbc.2019v65n1.274.
Full textAlmeida, Naiah Enéas da Silva. "ESTUDO DAS LESÕES ORAIS EM PACIENTES PEDIÁTRICOS SUBMETIDOS À QUIMIOTERAPIA." Anais dos Seminários de Iniciação Científica, no. 21 (November 1, 2017). http://dx.doi.org/10.13102/semic.v0i21.2588.
Full textSantos Júnior, Aníbal de Freitas, Danielle Ferreira De Souza, Jorgeci dos Santos Garrido, Caroline de Aragão Tannus, Hugo Saba Pereira Cardoso, and Hemerson Iury Ferreira Magalhães. "BIOSSEGURANÇA EM ONCOLOGIA E O PROFISSIONAL FARMACÊUTICO: ANÁLISE DE PRESCRIÇÃO E MANIPULAÇÃO DE MEDICAMENTOS ANTINEOPLÁSICOS." Revista Baiana de Saúde Pública 40, no. 4 (December 2, 2017). http://dx.doi.org/10.22278/2318-2660.2016.v40.n4.a1603.
Full textDissertations / Theses on the topic "Protocolos de quimioterapia combinada antineoplásica"
Ribeiro, Rodrigo Chaves [UNIFESP]. "Estudo das complicações do cateter totalmente implantável em oncologia pediátrica: Comparação entre a punção da veia jugular interna e da veia subclávia no implante do cateter." Universidade Federal de São Paulo (UNIFESP), 2008. http://repositorio.unifesp.br/handle/11600/39211.
Full textApproved for entry into archive by Diogo Misoguti (diogo.misoguti@gmail.com) on 2016-06-13T18:39:14Z (GMT) No. of bitstreams: 1 Publico-39221.pdf: 1303372 bytes, checksum: b93e071f34ee273902b8db162af463c3 (MD5)
Made available in DSpace on 2016-06-13T18:39:14Z (GMT). No. of bitstreams: 1 Publico-39221.pdf: 1303372 bytes, checksum: b93e071f34ee273902b8db162af463c3 (MD5) Previous issue date: 2008
Objetivo: Avaliar, por estudo prospectivo, a incidência de complicações relacionadas ao implante e uso de cateteres de longa permanência totalmente implantáveis (CLP) em crianças com câncer, comparando o implante por punção em veia subclávia (SCL) com o implante por punção em veia jugular interna (J). Método: estudo prospectivo com randomização da escolha da punção em veia subclávia ou veia jugular interna para o implante do cateter. Foram considerados como desfechos as complicações que levaram a retirada ou revisão do cateter. Resultados: 83 implantes foram randomizados no período de janeiro de 2004 a abril de 2006 e acompanhados até março de 2008. Dos 83 implantes selecionados 6 foram excluídos, permanecendo 43 pacientes no grupo SCL e 34 no grupo J. Não houve diferença estatística entre os dois grupos em relação à: distribuição por idade, sexo, número de leucócitos no implante, número de plaquetas, tipo de internação para cirurgia (ambulatorial ou não), se houve quimioterapia prévia ao implante e quanto ao tipo de cateter. Na avaliação das complicações se observou, incidência de infecção de 20% no grupo SCL e 11% no grupo J (p: 0,44), incidência de embolia de 23% no grupo SCL e 8% no grupo J (p: 0,11), e incidência de complicações total de 51% no grupo SCL e 23% no grupo J (p 0,02). A média do tempo de permanência do cateter foi de 12,6 meses para o grupo SCL e 14,8 para o grupo J (p: 0,38). A análise por regressão logística mostrou que o peso (p: 0,001) é um fator de risco envolvido com a infecção; e o peso (p: 0,020) e a marca do cateter (p: 0,03) são fatores de risco para embolia. Conclusões: há maior incidência de complicações tardias no grupo SCL. Os pacientes com menor peso tiveram risco maior de desenvolver infecção. Pacientes com menor peso e a marca do cateter são fatores de risco para a ocorrência de embolia do cateter
Objetive: to evaluate prospectively the complications related to long term totally implantable catheters in oncologic children, comparing the venopunction at the jugular vein to that at the subclavian vein. Method: randomized prospective study (jugular versus subclvian catheters). The endpoint was complications that led revision of the catheter or its removal. Results: 83 catheters were implanted from January 2004 to April 2006 and were followed until March 2008. 6 were excluded and 43 were at the subclavian vein and 34 at the jugular vein. No statistical differences were demonstrated concerning age, sex, leucometry, platlets, type of admission (day-hospital or not), previous chemotherapy and trade mark. Infection occurred in 20% of the patients with subclavian catheters and in 11% of the jugular catheters (p: 0,44); catheter embolism occurred in 23% of the subclavian group and in 8% of the jugular group (p:0,11). Complications occurred in 51% of the subclavian catheters and in 23% of the jugular ones (p: 0.02). Subclavian catheters were used for 12,6 months X 14.8 for the jugular ones (p: 0.38). The logistic regression showed that weight is a risk factor for infection (p: 0.001) and both weight and trade mark were risk factors for embolism. Conclusions: Late complications were more frequent in the subclavian group. Patients with lower weight had a higher risk for infection and both weight and trade mark were related to a higher risk of embolism.
Barbosa, Rafael Fernando Mendes. "Neutropenia em pacientes com câncer de cólon e reto submetidos a tratamento quimioterápico adjuvante." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/22/22132/tde-20032019-161037/.
Full textThe chemotherapeutic treatment of colon and rectal cancer can entail adverse effects that limit the effectiveness of the therapy and have a great impact on the final results of the treatment, where neutropenia is the most common hematological toxicity resulting from the chemotherapeutic treatment. This study was aimed to identify the occurrence of neutropenia in patients with colon and rectal cancer who underwent adjuvant chemotherapeutic treatment at the Clinical Hospital of the Ribeirão Preto Medical School, which belongs to the University of São Paulo (HCFMRP-USP), and to assess the development of febrile neutropenia (FN), according to the risk index of the Multinational Association for Supportive Care in Cancer (MASCC), in patients who had neutropenia during the chemotherapeutic treatment. This is a descriptive and retrospective study, which was performed through the review of 60 medical charts of patients diagnosed with colon and rectal cancer who underwent chemotherapeutic treatment with 5-fluorouracil, folinic acid and oxaliplatin (FLOX) and were monitored at the outpatient clinic of Coloproctology of this hospital between 2010 and 2017. We performed the assessment of the laboratory results of the chemotherapeutic treatment in patients allowable for this study on a weekly basis. The average age of participants was 63.8 years. A total of 34 patients (56.7%) were male. Most, 50, (83.3%) were white. As for marital status, 37 (61.7%) were married. The most frequent type of neoplasm was rectal adenocarcinoma, represented by 38 (63.3%) patients, followed by colon adenocarcinoma with 22 (36.7%). The most observed clinical staging were IIIb, 18 (30%) patients, followed by IVa, 16 (26.7%). We analyzed a total of 146 chemotherapeutic cycles, with an average of 2.5 cycles per patient, and 876 weeks of chemotherapeutic treatment. Of the 60 patients participants in the study, 41.7% had neutropenia at some time over the chemotherapeutic treatment. Among these 60 patients 21.6% had one episode of neutropenia, two episodes were observed in 13.3%, four episodes in 3.4%, and 3.4% of the patients developed six episodes of neutropenia. Altogether, 49 episodes of neutropenia were identified. We noted 67 delays among the treatment weeks, with an average of 5.02 days. Dose reduction was used in 30 patients, with a total of 40 cycles and 218 weeks of treatment reduced, and treatment suspension happened to 21 patients, totaling 57 treatment weeks with 27 suspension cycles. In this study, neutropenia was among the main reasons for the delays, dose reductions, and suspension of chemotherapeutic treatment. As for the risk assessment for the development of FN, 23 patients (84%) showed low risk, 2 (8%) showed high risk and 2 (8%) showed low and/or high risk concomitantly. The results of this study highlight that neutropenia in patients with colon and rectal cancer undergoing chemotherapeutic treatment has a relatively low incidence in its different stages, has low risk for the development of FN, in addition to suggesting the preparation and implementation of instruments capable of providing the best record of information on the incidence of neutropenia in health services, thus avoiding its underreporting
Gozzo, Thais de Oliveira. "Toxicidade ao tratamento quimioterápico em mulheres com câncer de mama." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/83/83131/tde-07072008-131358/.
Full textMethod: Thais study data were collected retrospectively reviewing the chart of 72 women with breast cancer, underwent to chemotherapy for the first time, that used epirubicin and docetaxel to neoadjuvant treatment and epirubicin and ciclophosphamid to adjuvant treatment. The data collection was done with the charts of women, with 30 to 60 years, treated in 2003 to 2006 in followed in the onco-gynecology and mastology sector- Gynecology and Obstetric Department of the University of São Paulo at Ribeirão Preto Medical School Hospital das Clínicas. Results: The participants had been divided in two groups, one with 31 women who had presented neutropenia and the other with 41 that had not presented. The average of age of the participants was of 47,8 years. The gastrointestinal toxicities during the neoadjuvant and adjuvant treatment observed mucositis (8.4% and 2%), nausea (18.6% and 18%) and vomiting (3.3% and 18%). Another observed toxicity was the extravasation during the chemotherapy treatment that occurred in 17 (23.6%) women. Was observed that 43% of the women had respectively presented neutropenia, who analyzed between the chemotherapy cycles had been statistical significant for cycles two and three of the neoadjuvant with values of p = 0,0016 and 0,0009 respectively, for cycles two and three of the adjuvant with values of p =0.0014 and 0.0030. And for the end of the neoadjuvant treatment, previous treatment to the surgical treatment being p-valor=< 0,0001 and for the end of the adjuvant treatment, with p-valor=< 0.0004. To anemia occurrence, this was not related with the presence or not of neutropenia, however it was observed that had a fall in the values of HB during the neoadjuvant, with fast recovery in the period of adjuvant. However, did not have recovery to previous the average values to the chemoterapy treatment. The reduction of the dose was used for six women in result of the hematologic toxicity. Was registered 152 doses delays between the chemotherapy cycles. The Log-Rank test for the time of treatment and survival, concluded that was equal for both groups. Conclusion: Through the results of this study demonstrates the necessity of develop and implement protocols for nursing care to women with breast cancer in order to assess the adverse events and most appropriate management of them
Mota, Sandra Mara Brasileiro. "Linfoma não-Hodgkin difuso de grandes células B : características clínicas, tratamento e prognóstico com os esquemas quimioterápicos CHOP e CHOP-Bleo." reponame:Repositório Institucional da UFC, 2006. http://www.repositorio.ufc.br/handle/riufc/4269.
Full textSubmitted by denise santos (denise.santos@ufc.br) on 2013-01-04T14:28:51Z No. of bitstreams: 1 2006_dis_smbmota.pdf: 287907 bytes, checksum: 7e0bc229874c243a42727335a9fd1299 (MD5)
Approved for entry into archive by Erika Fernandes(erikaleitefernandes@gmail.com) on 2013-01-23T11:37:46Z (GMT) No. of bitstreams: 1 2006_dis_smbmota.pdf: 287907 bytes, checksum: 7e0bc229874c243a42727335a9fd1299 (MD5)
Made available in DSpace on 2013-01-23T11:37:46Z (GMT). No. of bitstreams: 1 2006_dis_smbmota.pdf: 287907 bytes, checksum: 7e0bc229874c243a42727335a9fd1299 (MD5) Previous issue date: 2006
Diffuse Large B-Cell Lymphomas (DLBCL) corresponds to 50% of non-Hodgkin’s lymphomas (LNH). Their treatment of choice is the association chemotherapy, in special the CHOP therapy (cyclophosphamide, doxorubicin, vincristine and prednisone) considered the standard treatment initial of the DLBCL. Variations of this therapy, with the CHOP-Bleo protocol (cyclophosphamide, doxorubicin, vincristine, prednisone and bleomycin) have been used with the intention of obtaining complete response rates for the patients. In Brazil, little is known about the incidence, clinical behavior, response to therapy and survival of the patients with DLBCL. This study aimed to set out the epidemiological profile of patients with diffuse large B-Cell lymphomas, who received medical care at Hospital Universitário Walter Cantídio (HUWC), outline in Ceará state, with the first attendment from January 1989 to December 2003, who the used the CHOP and/or CHOP-Bleo therapy; Evaluating the security and efficiency of the protocols proposed by analysis of the kind of therapeutical response, clinical and laboratorial outcomes of these patients. The data collection was performed from medical recording of the 31 patients analyzed. These, 21 (67,74%) were the men and 10 (32,26%) women. The average age was 45,81 ± 16,3 anos. Agriculturists represented 25,82% (8/31) of all patients. The stage III the Ann Arbor classification were the most frequent (32,26%), but only 45% of the patients had B symptoms. The values of lactate dehydrogenises (LDH) enzyme were elevated in 49% of the patients at diagnosis, but in 16% of the patients these values at diagnosis were unknown. As much as the IPI, 71% were classified as an IPI low and intermediate risk, 13% as an IPI intermediate-high risk, none of the study patients showed as an IPI high risk and 16% there is not possible the classification to establish due to the data is unknown. As much as the chemotherapy protocols used, 58% (18/31) of the patients was received CHOP chemotherapy, 36% (11/31) CHOP-Bleo chemotherapy and 6% (2/31) received CHOP associated with CHOP-Bleo chemotherapy. Among the patients who used CHOP chemotherapy, 78% was achieving complete response (CR), 17% was achieving relapse of the disease and only 5% were the death. In the group who used CHOP-Bleo chemotherapy, 63% was achieving RC, 18% was achieving relapse of the disease and 19% died. The 2 patients who used CHOP and CHOP-Bleo chemotherapy were achieving relapse of the disease. The values of the LDH after chemotherapy showed decreased in patients with RC as much as the relapsed patients. We verified that the overall survival (OS) and disease-free survival (DFS) were not influenced by the clinic stage and initial values of the LDH patients. The logistic regression did not show statistical differences when the complete response was analyzed comparing to outcomes the studied variables after QT, except for the proportion of reduction of LDH levels and response to the treatment. The results stress the security and efficiency of the protocols CHOP e CHOP-Bleo in our study population. The data obtained also the need epidemiological studies in different DLBCL populations for the security in the choice chemotherapy, well as standardized the classification and description of the DLBCL and prognoses factures by pathologists and oncologists.
O linfoma difuso de grandes células B (LDGCB) corresponde a 50 % dos casos de linfoma não-Hodgkin (LNH). Seu tratamento de escolha é a quimioterapia de associação, em especial o esquema CHOP (ciclofosfamida, doxorrubicina, vincristina e prednisona), considerado o tratamento inicial padrão dos LDGCB. Variações deste esquema, como o protocolo CHOP-Bleo (ciclofosfamida, doxorrubicina, vincristina, prednisona e bleomicina) tem sido utilizadas com a intenção de se obter maiores taxas de remissão completa pelos pacientes. No Brasil, pouco se conhece a respeito da incidência, do comportamento clínico, da resposta às terapêuticas utilizadas e da sobrevida de pacientes com LDGCB. Este estudo teve como objetivos traçar o perfil epidemiológico dos pacientes portadores de linfoma difuso de grandes células B, atendidos no Hospital Universitário Walter Cantídio (HUWC), com data de primeiro atendimento de janeiro de 1989 a dezembro de 2003, e que fizeram uso dos esquemas quimioterápicos CHOP e/ou CHOP-Bleo; avaliar a eficácia e segurança terapêutica dos esquemas propostos através da análise do tipo de resposta terapêutica, achados clínicos e laboratoriais destes pacientes. A coleta dos dados foi realizada a partir dos prontuários médicos dos 31 pacientes analisados. Destes, 21 (67,74%) eram do sexo masculino e 10 (32,26%) do feminino, com idade média de 45,81 ± 16,3 anos. A ocupação trabalhador agrícola representou 25,82% (8/31). O estádio III da classificação de Ann Arbor foi o mais freqüente (32,26%), mas apenas 45% dos pacientes apresentaram sintomas B. A lactato desidrogenase (LDH) sérica de 49% dos pacientes encontrava-se elevada à época do diagnóstico, sendo que outros 16% dos pacientes não apresentavam resultado desta enzima em seus prontuários. Quanto ao IPI, 71% foram classificados como de risco baixo e intermediário, 13% de alto risco intermediário, nenhum dos pacientes do estudo apresentou IPI compatível com de alto risco e em 16% dos pacientes não foi possível estabelecer a classificação devido à ausência de dados nos prontuários. Quanto à utilização dos protocolos quimioterápicos, 58% (18/31) dos pacientes fizeram uso do esquema CHOP, 36% (11/31) utilizaram CHOP-Bleo e 6% (2/31) utilizaram os dois esquemas quimioterápicos. Entre os pacientes que utilizaram o esquema CHOP, 78% atingiram a remissão completa (RC), 17% apresentaram recidiva da doença e apenas 5 % foram a óbito. No grupo que utilizou o esquema CHOP-Bleo, 63% atingiram a RC, 18% apresentaram recidiva da doença e 19% foram a óbito. Os 2 pacientes que utilizaram os dois esquemas como tratamento apresentaram recidiva da doença. Os valores de LDH dos pacientes após a quimioterapia apresentam-se reduzidos tanto em pacientes que atingiram a remissão completa como naqueles que tiveram recidiva. Verificamos que a sobrevida global (SG) e a sobrevida livre de doença (SLD) não foram influenciadas pelo estádio clínico e LDH inicial dos pacientes. A regressão logística não mostrou significância estatística quando analisou a remissão completa dos pacientes a partir dos resultados das variáveis em estudo pós QT, com exceção da proporção de redução da LDH e a resposta ao tratamento. Os resultados mostraram a eficácia e segurança dos esquemas terapêuticos CHOP e CHOP-Bleo em nossa população de estudo. Os resultados demonstram ainda que se faz necessário o estudo epidemiológico de diferentes populações com LDGCB para que haja segurança na escolha de esquemas quimioterápicos, bem como a uniformidade em descrever e classificar os linfomas e os seus fatores prognóstico por parte dos patologistas e oncologistas.
Pereira, Michelle Miranda. "Avaliação da fluência verbal e da memória verbal em pacientes pediátricos com leucemia." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/5/5170/tde-01112018-124708/.
Full textObjective: to evaluate the cognitive-linguistic abilities of children diagnosed with acute lymphoid leukemia during chemotherapy treatment. Methods: observational cross-sectional clinical study. The research group (GLL) was composed by 18 children aged between 7 years and 10 years and 11 months, with diagnosis of acute lymphoid leukemia receiving chemotherapeutic treatment, who did not present genetic syndromes, neurological and/or auditory alterations, had not undergone radiotherapy and/or bone marrow transplantation. A control group (GC) was collected, comprising eighteen healthy children, matched to the research group by age, gender and maternal schooling. Non-verbal intelligence, phonology, expressive vocabulary, verbal fluency, short-term verbal memory, and operational verbal memory were evaluated. The collected data were submitted to statistical analysis. Results: There were no statistical differences between groups in the intelligence and expressive vocabulary tests. The GLL group presented a worse performance in the other tests, but with significant difference only in operational memory and in the \"body parts\" category of the verbal fluency test. Conclusion: This study enabled a first analysis of the effects of chemotherapy treatment in children with leukemia on cognitive-linguistic abilities. There was no difference in expressive vocabulary, but verbal fluency and memory skills appear to be impaired in these children, when compared to the control group, although there was no statistical significance in all variables
Santos, Michel Pinheiro dos. "Avaliação in vitro do potencial terapêutico da associação de quimioterápicos clássicos com butirato sódico e zoledronato em linhagens celulares de Sarcoma de Ewing." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/87183.
Full textBackground: Ewing sarcoma, often referred to as Ewing’s sarcoma family tumors, is a peripheral primitive neuroectodermal tumor. Ewing sarcoma is the second most common solid bone and soft tissue malignancy of children and young adults. Despite significant advances in cancer chemotherapy, there is still need for increased rates of cure, reduction of toxicity of chemotherapy and reduced resistance to treatment in patients with this disease. Histone deacetylase inhibitors (HDACIs or HDIs) and bisphosphonates have a promising future in the treatment of cancer as targeted anticancer drugs, especially when used together or in combination with other cytotoxic agents. However, the effects of these combined treatments have not yet been properly evaluated in Ewing sarcoma. Objective: In the present study, we evaluated the in vitro cytotoxic effects (on cellular proliferation, viability, and survival) elicited by the co-treatment of sodium butyrate (NaB) and zoledronic acid (ZA) alone or in combination with three anti-cancer drugs strongly recommended to treat Ewing sarcoma (doxorubicin, etoposide and vincristine) in two human cell lines. Methods: two Ewing sarcoma cell lines, SK-ES-1 and RD-ES, were treated with NaB, ZA, doxorubicin, etoposide, vincristine and with different combinations of these drugs. The proliferation and cell viability were analyzed by counting cell in a hemocytometer, by exclusion of trypan blue and by MTT assay. The survival and proliferation of cells were also studied by clonogenic assay. Results: our results demonstrate that the combination of NaB and ZA has a synergistic cytotoxic effect at 72h after treatment, persisting for 10-14 days post-treatment, in both cell lines tested. All combinations between NaB or ZA and classical antineoplastic drugs demonstrated a synergistic cytotoxic effect at 72h post-treatment in SK-ES-1 and RD-ES cells, with the exception of NaB plus VCR, and ZA plus Doxo, which showed only an additive effect in RD-ES cells when compared to each agent alone. These acute effects observed in both Ewing sarcoma cells were confirmed by the clonogenic assay. Conclusion: These data suggest that HDIs and bisphosphonate co-treatment in combination with classical chemotherapeutic drugs is a promising therapeutic venue the treatment of Ewing sarcoma, and provide a basis for further study in this field.
Herchenhorn, Daniel. "Estudo de fase I/II de Erlotinib (OZI-774) combinado com radioterapia e cisplatina em pacientes com carcinoma epidermóide de cabeça e pescoço, localmente avançado." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/5/5155/tde-23022010-170624/.
Full textPurpose: Erlotinib, an oral tyrosine-kinase inhibitor, is active against squamous cell carcinoma of the head and neck (HNSCC) and possibly has a synergistic interaction with chemotherapy and radiotherapy. We investigated the safety and efficacy of erlotinib added to cisplatin and radiotherapy in locally advanced HNSCC. Patients and Methods: Phase I/II trial of cisplatin 100 mg/m2 on days 8, 29 and 50; and radiotherapy 70 Gy starting on day 8. During the phase I, erlotinib dose was escalated (50 mg, 100 mg and 150 mg) in consecutive cohorts of three patients, starting on day 1 and continued during radiotherapy. Dose-limiting toxicity (DLT) was defined as any grade 4 event requiring radiotherapy interruptions. Phase II initiated 8 weeks after the last phase I enrollment. Results: Nine patients were accrued in the phase I and 28 in the phase II; all were evaluable for efficacy and safety. No DLT occurred in the phase I and the recommended phase II dose was 150mg. The most frequent non-hematological toxicities were nausea/vomiting, dysphagia, stomatitis, xerostomia and in-field dermatitis, acneiform rash, and diarrhea. Of the 31 patients in the erlotinib 150 mg daily dose, 23 (74%, 95% CI 56.8% 86.3%) had a complete response, 3 were disease-free after salvage surgery, 4 had an inoperable residual disease, and 1 died of sepsis during treatment. With a median 37 months follow-up, the 3-year progression-free and overall survival were 61 and 72% respectively. Conclusion: This combination appears safe, has encouraging activity and deserves further studies in locally advanced HNSCC
Marchioro, Mariana Kliemann. "Estudo de utilização de medicamentos em uma unidade de oncologia pediátrica de um hospital universitário de Porto Alegre." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/101511.
Full textPediatric cancer is rare in absolute numbers, but when compared to the incidence in adults has shown an increase in incidence rates, requiring a prepared system health for following. Pediatrics treatment can’t be the same as that of adults, because children have different physiological differences in pediatric age groups. Studies of medication use in this population are very important in order to promote the rational use of drugs, as well as to guarantee their safe use and effective therapy. The present study aims to evaluate the anticancer prescriptions in pediatric oncology unit of a university hospital in Porto Alegre, identifying the most used protocols, and contextualizing them later with the recommendations in the theoretical framework. A prospective cross-sectional study involving hospital admissions in the pediatric oncology unit of the Hospital de Clínicas de Porto Alegre (HCPA) was performed. We analyzed 274 admissions, which 40 were first admission and 234 were readmissions. These admissions most patients were aged 0 to 10 years, white race, a slight male prevalence, residing in Metropolitan Mesoregion. The financing the hospital admissions was public, and the maining cause of hospitalization was treatment, the most frequent being the chemotherapy. We analyzed the protocols used during the admissions of patients diagnosed with Acute Lymphocytic Leukemia, Retinoblastoma and Ewing's Sarcoma. Protocols are studies that allow a greater knowledge about medicines for pediatric use. The pediatric oncology with its characteristic of being a disease has culturally linked with death ease of studies of this size. However, more studies of medication use are still needed to use these drugs in order to knowledge to the treatment protocols.
Gaspar, Tiago Bordeira. "Low-dose metronomic chemotherapy: insight into the modern cancer field: chemotherapeutic approach of hemangiosarcoma in dogs: a preliminary retrospective study." Master's thesis, 2015. http://hdl.handle.net/10348/6206.
Full textA era da quimioterapia, iniciada a meio do século passado, tem sido dominada pelo uso habitual de protocolos de quimioterapia de dose intensa, os quais se baseiam no conceito de dose máxima tolerada. Ao promoverem um equilíbrio entre a qualidade de vida do animal e o objetivo de destruir prontamente o maior número possível de células tumorais, estes protocolos ocupam ainda hoje um lugar de destaque na prática clínica diária. Contudo, aquando da entrada do novo milénio, a quimioterapia metronómica foi introduzida como uma possível alternativa à utilização de quimioterapia convencional, trazendo consigo uma considerável mudança no panorama dos tratamentos quimioterápicos. Caracterizada por uma administração diária a longo prazo de doses mais baixas de fármacos citotóxicos, esta nova modalidade tem características completamente diferentes, além de benefícios animadores. Mas qual será o seu verdadeiro lugar no arsenal da terapia quimioterápica? Terá a quimioterapia metronómica eficácia suficiente para tratar animais com cancro? Ou será apenas uma opção paliativa e mais económica? Dentro da quimioterapia metronómica, uma nova terapia antitumoral tem emergido como a forma mais recente de administração de fármacos citotóxicos. O regime chemo-switch consiste na utilização de quimioterapia metronómica como uma terapia de manutenção, no seguimento da aplicação de quimioterapia convencional. No entanto, apesar de se apresentar como uma modalidade promissora, carece ainda, à semelhança da própria quimioterapia metronómica, de validação na prática clínica. O hemangiossarcoma canino é um tumor maligno com origem nas células endoteliais vasculares, cujo prognóstico é geralmente pobre, e o tratamento permanece particularmente desafiante em oncologia veterinária, devido ao seu altíssimo índice de metastização. Foram comparadas retrospetivamente as modalidades quimioterápicas existentes até à data (metronómica, convencional e o regime de chemo-switch) para o tratamento de 29 cães com hemangiossarcoma de estadio II-III. Os cães inseridos no grupo da quimioterapia metronómica receberam o protocolo CTP, que consistiu na combinação de três fármacos (ciclofosfamida, talidomida e piroxicam); dentro do grupo da quimioterapia convencional, os animais receberam o protocolo DOX (um protocolo de quimioterapia dose-intensa composto somente por doxorrubicina), ou o protocolo ADTIC (um protocolo de quimioterapia dose-intensa que combinava doxorrubicina com dacarbazina): o grupo do chemo-switch incluiu cães tratados com um dos dois protocolos de quimioterapia dose-intensa seguido do protocolo de quimioterapia metronómica. O estadio clínico destacou-se como sendo o único factor determinante para a análise de sobrevida dos animais, mais do que a própria abordagem terapêutica. Os cães diagnosticados com hemangiossarcoma de estadio II tiveram um tempo para a progressão mediano e uma sobrevida mediana superiores àqueles com estadio III (140 dias vs. 66 dias, P<0.001, e 198 dias vs. 87 dias, P<0.001, respetivamente). Por outro lado, não foi encontrada qualquer diferença estatisticamente significativa entre os três braços terapêuticos, nem quando o tempo para a progressão foi avaliado (P=0.985), nem para o tempo de sobrevida (P=0.906). É importante referir que todos os protocolos foram bem tolerados em termos de toxicidade e que, apesar de os resultados serem inferiores àqueles publicados na comunidade científica, o presente estudo retrospetivo preliminar pretende promover a elaboração de trabalhos prospetivos na área.
The era of chemotherapy, which started in the middle of the last century, has been ruled by the routine use of dose-intense protocols, based on the maximum-tolerated dose concept. By promoting a balance between patient’s quality of life, with the goal of rapidly killing as many tumor cells as possible, these protocols still occupy a prominent place in daily clinical practice. However, the opening of a new millennium has brought a considerable change in oncologic treatments, when metronomic chemotherapy was proposed as a possible alternative to the conventional drug delivery. Characterized by a long-term daily basis drug administration of shorter doses of cytotoxic drugs, this new modality has completely different features besides offering cheering benefits. But what is the real place of this strategy in chemotherapeutic arsenal? Will indeed metronomic chemotherapy have enough efficacy to treat animals with cancer? Or will it be just a palliative and cheaper choice? Inside metronomic chemotherapy, a new anticancer therapy has emerged as the most recent form of scheduling the administration of cytotoxic drugs. The so-called chemo-switch regimen consists in the use of metronomic chemotherapy as a maintenance approach, after the application of conventional chemotherapy. Despite being a promising modality, much like metronomic chemotherapy itself, the validation of chemo-switch remains to be verified in clinical practice. Canine hemangiosarcoma is a malignant tumor that arises from the vascular endothelial cells, which prognosis is generally poor, and treatment still particularly challenging in veterinary oncology, due to its very high metastatic rate. It was retrospectively compared the so far existent chemotherapeutic modalities (metronomic, conventional and the chemo-switch regimen) for the treatment of 29 dogs with stage II-III hemangiosarcoma. Dogs allocated into the metronomic group received the protocol CTP, which consisted in a combination of three drugs (cyclophosphamide, thalidomide and piroxicam); inside the dose-intense group, patients received the protocol DOX (a single-drug dose-intense protocol of doxorubicin), or the protocol ADTIC (a dose-intense doxorubicin-based protocol that combined doxorubicin with dacarbazine); the chemo-switch group included dogs that were treated with one of the two dose-intense protocols followed by the metronomic protocol. The clinical stage stood out as the only determining factor for the patients’ survival analysis, rather than the therapeutic approach itself. Dogs diagnosed with stage II hemangiosarcoma had a longer median time to progression and survival time than those with stage III (140 days vs. 66 days, P<0.001, and 198 days vs. 87 days, P<0.001, respectively). On the other hand, it was not found any statistically significant difference among the three treatment arms, neither when evaluating the time to progression (P=0.985), nor with the survival time (P=0.906). Importantly, all protocols were well tolerated in terms of toxicity, and even though the results were below the ones published in scientific community, this retrospective preliminary study intends to promote further prospective investigations in the field.