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    Gemcitabine and Cisplatin Combination Chemotherapy in Triple Negative Metastatic Breast Cancer Previously Treated with a Taxane/Anthracycline Chemotherapy; Multicenter Experience
    (Aepress Sro, 2012) Ozkan, M.; Berk, V.; Kaplan, M. A.; Benekli, M.; Coskun, U.; Bilici, A.; Gumus, M.
    This study was aimed to establish clinical efficacy and tolerability of gemcitabine and cisplatin combination in patients with metastatic triple negative breast cancer progressing after anthracycline and taxane based chemotherapies. Thirty-three patients who were given cisplatin and gemcitabine for triple negative and metastatic breast cancer were evaluated retrospectively. A total of 141 cycles were administered with a median 4 cycles per patient. Median follow-up time was 14 months (range, 2-36 months). Objective response rate was 27.3%. Total clinical benefit of the combination was 48.4%. The estimated median progression free survival and median overall survival were 5 months and 14 months, respectively. The most common Grade 3 and 4 toxicity were neutropenia and thrombocytopenia observed in 10 (27.7%) and 9 (24.9%) patients, respectively. The combination of the gemcitabine and cisplatin after taxane/anthracycline is well tolerated and seems to be effective with acceptable toxicity profile.
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    Low molecular weight heparin (LMWH) treatment in cancer patients with low risk venous thromboembolism - results of Turkish Observational Study (TREBECA)
    (Elsevier Sci Ltd, 2015) Ozkan, M.; Cicin, I.; Ozaslan, E.; Benekli, M.; Oksuzoglu, B.; Kocer, M.; Isikdogan, A.
    [Abstract Not Available]
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    Mitomycin-C in combination with fluoropyrimidines in the treatment of metastatic colorectal cancer after oxaliplatin and irinotecan failure
    (Zerbinis Medical Publ, 2011) Alkis, N.; Demirci, U.; Benekli, M.; Yilmaz, U.; Isikdogan, A.; Sevinc, A.; Ozdemir, N. Y.
    Purpose: To retrospectively evaluate the efficacy and tolerability of mitomycin-C (MMC) in combination with fluoropyrimidines as salvage 3rd -or 4th-line therapy in metastatic colorectal cancer (MCRC) patients. Methods: All patients in this study had previously failed oxaliplatin and irinotecan-based chemotherapy. Patients were treated with MMC (6 mg/m(2) intravenously/i.v) on day 1 in combination with either oral UFT (500 mg/m(2)) and oral leucovorin (LV) (30 mg) on days 1-14 every 3 weeks (group A) or infusional 5-fluorouracil (5-FU) by deGramont regimen with i.v. LV (200 mg/m(2)) on days I and 2, every 2 weeks (group B). Results: Thirty-nine MCRC patients were analyzed. Twenty-two of them were in group A and 17 in group B. Thirty-three were evaluable for clinical efficacy The clinical benefit in the intent-to-treat (ITT) population was 30.8%. Median progression free survival (PFS) was 6 months (95% confidence interval/CI 4-8) and median overall survival (OS) 9 months (95% CI 6.5-11.5). Median PFS was 3 months (95% CI 2.4-3.6) in group A and 7 months (95% CI 5.1-8.9) in group B (p=0.009). Median OS was 7 months (95% CI 4.3-9.7) in group A and 12 months (95% CI 5.4-18.6) in group B (p=0.422). The combination of MMC and fluoropyrimidines was generally well tolerated. The most common severe toxicities were nausea and vomiting, neutropenia, hepatotoxicity and diarrhea. Conclusion: MMC in combination with fluoropyrimidines is safe and active in heavily-pretreated MCRC patients. This combination remains a viable option in these patients. However better therapies are urgently needed.
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    Multiple primary malignant neoplasms: Multi-center results from Turkey
    (Imprimatur Publications, 2012) Babacan, N. A.; Aksoy, S.; Cetin, B.; Ozdemir, N. Y.; Benekli, M.; Uyeturk, U.; Kaplan, M. Ali
    Purpose: Multiple primary malignant neoplasms (MPMNs) are defined as a diagnosis of two or more independent primary malignancies of different histologies/origins in an individual. The frequency of MPMN is being increasing. In this study we aimed to determine the frequency and clinical features of second primary cancers (SPCs). Methods: From January 1990 to December 2010, patients with MPMNs were screened in 5 centers. Data were obtained retrospectively from hospital charts. Results: Three hundred seventy-seven patients with MPMNs were evaluated. The median age at initial cancer diagnosis was 61 years (range 18-88). The median age at second cancer was 64 years (range 20-89). The median time between two cancer diagnoses was 15 months (range 0-504). Male to female ratio was 1.44 (M/F 223/154). The most frequent initial cancer types were head and neck (54 patients, 14.3%), breast (54 patients, 14.3%), and colorectal (43 patients, 11.4%). The most frequent second cancer types were lung (76 patients, 20.2%), colorectal (39 patients, 10.3%) and breast (33 patients, 8.8%). The most common cancer pairs in females were breast-gynecologic cancers (15 patients, 9.7%), colorectal-breast cancers (9 patients, 5.8%) and breast-colorectal cancers (7 patients, 4.5%). The most common cancer pairs in males were head and neck-lung cancers (29 patients, 13%), bladder-lung cancers (9 patients, 4%), and bladder-prostate cancers (7 patients, 3%). The median follow up was 36 months (range 1-595). Conclusion: Physicians should be aware of SPCs probabilities. Newly developed suspicious lesions should be evaluated rigorously. Histopathologic evaluations of suspicious lesions for second tumors should be used extensively if needed. In our series, the most common pairs were breast-gynecologic cancers in females and head and neck-lung cancers in males.
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    Phase II study of lapatinib in combination with vinorelbine in patients with ErbB2-amplified recurrent or metastatic breast cancer
    (Amer Soc Clinical Oncology, 2011) Saip, P.; Eralp, Y.; Ozkan, M.; Karaca, H.; Benekli, M.; Cetin, B.; Isikdogan, A.
    [Abstract Not Available]
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    Phase II study of lapatinib in combination with vinorelbine in patients with HER2 positive recurrent or metastatic breast cancer: A multicentric Turkish Oncology Group (TOG) trial
    (Churchill Livingstone, 2013) Saip, P.; Eralp, Y.; Sen, F.; Karaca, H.; Ozkan, M.; Cetin, B.; Benekli, M.
    Background: The aim of this explorative phase II study was to evaluate the activity and safety of lapatinib in combination with intravenous vinorelbine in women with HER2 positive metastatic or recurrent breast cancer. Methods: Twenty-nine patients were enrolled. The primary objectives were response and clinical benefit (CB) rates, secondary objectives were toxicity, response duration and progression free survival. Patients received 1250 mg oral lapatinib continuously once daily and intravenous vinorelbine 20-25 mg/m(2) on days 1 and 8, every 3 weeks. Results: Although 25 patients were evaluable for response, according to intend to treat analysis of 28 patients; 14% had confirmed partial response (PR) and 36% had stable disease more than 24 weeks with a CB rate of 50%. Sixty four percent of the patients suffered from grade 3-4 hematologic and 18% from grade 3 extra-hematologic toxicities. Conclusion: The results of this trial provide evidence to further investigate the potential of this combination for patients unsuitable for trastuzumab or who become refractory to trastuzumab. (C) 2013 Elsevier Ltd. All rights reserved.