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1.
Eur Rev Med Pharmacol Sci ; 28(13): 3958-3968, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39012235

ABSTRACT

OBJECTIVE: Viral infections are an important cause of exacerbation in bronchiectasis patients. We aimed to determine the influence of the COVID-19 pandemic on adult bronchiectasis patients and whether there was a relationship between the clinical parameters and the COVID-19 infection. PATIENTS AND METHODS: In this retrospective observational study, 547 bronchiectasis patients were included. Demographic characteristics, vaccination status, Bronchiectasis Severity Index (BSI), FACED and Reiff scores, and clinical and laboratory parameters during COVID-19 infection were evaluated. RESULTS: The median age was 56, and 49.2% of the patients were male. The COVID-19 infection rate was 27.6%. 431 (78.8%) patients had at least one dose of the COVID-19 vaccine. The patients were divided into two groups according to their COVID-19 infection status. Emergency admission was significantly higher in the COVID-19-infected group. There was no statistical difference with other clinical factors. The COVID-19-infected patients were divided into home treatment and hospital/intensive care unit (ICU) treatment groups. There was a statistically significant difference between the two groups regarding advanced age, male gender, presence of asthma, long-term oxygen therapy (LTOT) and non-invasive mechanic ventilator (NIMV) usage, sputum culture positivity, BSI and FACED scores, and multiple laboratory parameters (ferritin, C-reactive protein, eosinophil). In logistic regression analysis, BSI was found as a risk factor [OR 1.252 (1.077-1.456), p=0.004] and eosinophilia as a protective factor [OR 0.986 (0.973-0.999), p=0.030] for hospital/ICU admission. CONCLUSIONS: Frequent emergency visits might increase the risk of COVID-19 infection in bronchiectasis patients. BSI was found to be an independent risk factor, and blood eosinophilia could play a protective role in hospital/ICU admission for COVID-19 infection.


Subject(s)
Bronchiectasis , COVID-19 , Severity of Illness Index , Humans , COVID-19/epidemiology , Bronchiectasis/epidemiology , Male , Female , Middle Aged , Retrospective Studies , Adult , Aged , SARS-CoV-2 , Hospitalization , Risk Factors
2.
Ann Oncol ; 28(10): 2496-2502, 2017 Oct 01.
Article in English | MEDLINE | ID: mdl-28961828

ABSTRACT

BACKGROUND: Reed-Sternberg cells of classical Hodgkin's lymphoma (cHL) are characterized by genetic alterations at the 9p24.1 locus, leading to over-expression of programmed death-ligand 1 and 2. In a phase 1b study, nivolumab, a PD-1-blocking antibody, produced a high response in patients with relapsed or refractory cHL, with an acceptable safety profile. PATIENTS AND METHODS: We present a retrospective analysis of 82 patients (median age: 30 years; range: 18-75) with relapsed/refractory HL treated with nivolumab in a named patient program from 24 centers throughout Turkey. The median follow-up was 7 months, and the patients had a median of 5 (2-11) previous lines of therapy. Fifty-seven (70%) and 63 (77%) had been treated by stem-cell transplantation and brentuximab vedotin, respectively. RESULTS: Among 75 patients evaluated after 12 weeks of nivolumab treatment, the objective response rate was 64%, with 16 complete responses (CR; 22%); after 16 weeks, it was 60%, with 16 (26%) patients achieving CR. Twenty patients underwent subsequent transplantation. Among 11 patients receiving allogeneic stem-cell transplantation, 5 had CR at the time of transplantation and are currently alive with ongoing response. At the time of analysis, 41 patients remained on nivolumab treatment. Among the patients who discontinued nivolumab, the main reason was disease progression (n = 19). The safety profile was acceptable, with only four patients requiring cessation of nivolumab due to serious adverse events (autoimmune encephalitis, pulmonary adverse event, and two cases of graft-versus-host disease aggravation). The 6-month overall and progression-free survival rates were 91.2% (95% confidence interval: 0.83-0.96) and 77.3% (0.66-0.85), respectively. Ten patients died during the follow-up; one of these was judged to be treatment-related. CONCLUSIONS: Nivolumab represents a novel option for patients with cHL refractory to brentuximab vedotin, and may serve as a bridge to transplantation; however, it may be associated with increased toxicity.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Hodgkin Disease/drug therapy , Adolescent , Adult , Aged , Antineoplastic Agents/therapeutic use , Brentuximab Vedotin , Disease-Free Survival , Female , Hodgkin Disease/therapy , Humans , Immunoconjugates/therapeutic use , Male , Middle Aged , Nivolumab , Retrospective Studies , Stem Cell Transplantation , Young Adult
3.
J BUON ; 21(1): 286, 2016.
Article in English | MEDLINE | ID: mdl-27061567
6.
J BUON ; 18(4): 831-7, 2013.
Article in English | MEDLINE | ID: mdl-24344005

ABSTRACT

PURPOSE: To evaluate the activity and toxicity of the combination of capecitabine and cisplatin (CapCisp) in anthracycline- and taxane-pretreated HER-2 negative metastatic breast carcinoma (MBC) female patients. METHODS: Patients with HER-2 negative MBC pretreated with anthracycline and taxane and who were then treated with CapCisp combination were retrospectively evaluated. All patients received Cap 1000 mg/m(2) on days 1-14, and Cisp 60 mg/m(2) on day 1, repeated every 3 weeks. In case of disease control without severe toxicity, single agent Cap was continued until progression or unacceptable toxicities after Cisp cessation. RESULTS: Sixty-four MBC patients with median age 43 years (range 20-66) were included the study. Infiltrative ductal carcinoma prevailed (85.9%). Ten percent of the patients had grade I, 42% grade II, and 48.0% grade III tumors. Estrogen receptor (ER) and progesterone receptor (PR) were positive in 48.4 and 51.6% of the patients, respectively. Twenty-eight percent of the patients had triple negative tumors. Almost the entire patient group had this regimen as a third-line treatment. The median combination chemotherapy cycles were 6 (range 2-8). Twenty-seven non-progressive patients continued treatment with single-agent Cap. Median single-agent Cap cycles after the combination chemotherapy were 4 (range 1-38). Disease control rate was 81.3% (complete response 6.3%; partial response 48.4%, stable disease 26.6%, progressive disease 18.8%). Median follow-up time was 10.6 months. Median time to disease progression was 7 months, median overall survival (OS) was 17 months (95% CI, 6.9-16.1) measured from the start of CapCisp chemotherapy. There were no treatment-related deaths. The most frequent grade 3-4 toxicities were neutropenia (8.1%), nausea - vomiting (7.8%) and thrombocytopenia (6.3%). CONCLUSION: CapCisp doublet has an encouraging antitumor activity with acceptable and manageable toxicity in anthracycline- and taxane-pretreated HER-2 negative metastatic breast carcinoma patients.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Biomarkers, Tumor/analysis , Breast Neoplasms/drug therapy , Carcinoma, Ductal, Breast/drug therapy , Receptor, ErbB-2/analysis , Adult , Aged , Anthracyclines/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Breast Neoplasms/chemistry , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Capecitabine , Carcinoma, Ductal, Breast/chemistry , Carcinoma, Ductal, Breast/mortality , Carcinoma, Ductal, Breast/secondary , Chi-Square Distribution , Cisplatin/administration & dosage , Deoxycytidine/administration & dosage , Deoxycytidine/analogs & derivatives , Disease Progression , Drug Administration Schedule , Female , Fluorouracil/administration & dosage , Fluorouracil/analogs & derivatives , Humans , Kaplan-Meier Estimate , Middle Aged , Receptors, Estrogen/analysis , Receptors, Progesterone/analysis , Retrospective Studies , Taxoids/administration & dosage , Time Factors , Treatment Outcome , Triple Negative Breast Neoplasms/chemistry , Triple Negative Breast Neoplasms/drug therapy , Triple Negative Breast Neoplasms/pathology , Young Adult
7.
J BUON ; 18(1): 261-7, 2013.
Article in English | MEDLINE | ID: mdl-23613414

ABSTRACT

PURPOSE: Treating cancer often involves the use of chemotherapeutic agents. Due to the growing incidence of cancer worldwide and the expanding number of treatment options, it is important to understand the risks of adverse events associated with these treatments. In this study, we monitored the occurrence of acute infusion reactions in an outpatient chemotherapy center from April 2011 to April 2012. METHODS: For patients who developed infusion reactions, the causative drug, the dose and number of treatments received, the onset time of the reaction, the duration of the reaction, blood pressure, pulse, level of oxygen saturation during the reaction, and other symptoms were recorded. The severity of reactions was determined in accordance with NCI toxicity criteria. A reaction was considered as grade 1-2 (mild-moderate) if the patient experienced flushing, rash, fever, tremor, dyspnea, rigor, and mild hypotension. Symptoms such as severe hypotension, bronchospasm, cardiac dysfunction and anaphylaxis, requiring therapeutic intervention, were classified as severe, grade 3-4 reactions. RESULTS: Of the 2213 patients receiving chemotherapy during the study period, 138 (62%) developed an infusion reaction to the treatment. Among 138 patients most commonly treated types of carcinoma included breast (39.2%), lung (17.8%), colorectal (10%), and ovarian (8.5%) cancers. Docetaxel administration resulted in the largest number of infusion reactions, though most reactions were mild to moderate and did not require the cessation of treatment. Patients with mild to moderate reactions (89.2%) were able to continue treatment, while those who developed severe reactions (10.8%) could not continue treatment with the same agent. CONCLUSION: Although severe reactions are rare, the incidence of mild to moderate reactions against taxanes, platinum compounds, and monoclonal antibodies is quite high. Clinical symptoms do not vary widely among the agents, though the onset time of symptoms does vary. While reactions against platinum agents were of type 1 anaphylactic reactions, reactions against taxanes and monoclonal antibodies during the first infusion and in the following minutes suggest the activation of different mechanisms.


Subject(s)
Antineoplastic Agents/administration & dosage , Antineoplastic Agents/adverse effects , Drug Hypersensitivity/etiology , Drug-Related Side Effects and Adverse Reactions/chemically induced , Acute Disease , Adult , Aged , Ambulatory Care , Drug Hypersensitivity/diagnosis , Drug Hypersensitivity/epidemiology , Drug-Related Side Effects and Adverse Reactions/diagnosis , Drug-Related Side Effects and Adverse Reactions/epidemiology , Female , Humans , Incidence , Infusions, Parenteral , Male , Middle Aged , Prognosis , Risk Factors , Severity of Illness Index , Time Factors , Turkey/epidemiology
10.
J BUON ; 17(4): 781-4, 2012.
Article in English | MEDLINE | ID: mdl-23335541

ABSTRACT

PURPOSE: Cancer therapy is a costly treatment. Costs of drugs used in cancer therapy are gradually increasing with the addition of new and expensive drugs. This fact imposes obligation on reasonable drug usage. Occasionally, all of the prescribed drugs are not used for various reasons, and a number of drugs can be left over. In this study, we aimed to calculate the costs of unused chemotherapeutic drugs in our oncology clinics. METHODS: A total of 117 patients with 17 different types of cancer were administered 32 cancer therapy protocols during 2 months. After administration of ideal doses of the prescribed drugs calculated on an individual basis, the number of unused drug doses in the packages was recorded and the costs of the unused drugs were calculated based on current prices of the drugs. RESULTS: The cumulative cost of the unused drugs calculated for all patients was US dollars (USD) 6406.93, and average cost of the drug per capita was USD 54.76. Minimal and maximal unused drug costs per drug were USD 0.29 for 5-fluorouracil, and USD 247.12 for bevacizumab, respectively. Minimal increase in drug costs per recipe was USD 0.50 for a prescription containing cyclophosphamide and 5-fluorouracil, while the total cost of bevacizumab plus irinotecan combination increased tremendously to USD 309.12. Among chemotherapeutic protocols the cheapest one was AC (adriamycin, cyclophosphamide) with USD 4.77, while the most expensive one (USD 116.02) was FOLFIRI-B (5-fluorouracil, calcium folinate, irinotecan, and bevacizumab). CONCLUSION: The important financial burden of unused drugs goes unrecognized among routine chemotherapeutic applications. In order to be able to avoid this extravagance, drug industry, prescribing physicians, and practice nurses must assume important roles.


Subject(s)
Antineoplastic Agents/economics , Health Care Costs , Neoplasms/drug therapy , Adult , Aged , Costs and Cost Analysis , Female , Humans , Male , Middle Aged
11.
J BUON ; 16(3): 460-3, 2011.
Article in English | MEDLINE | ID: mdl-22006750

ABSTRACT

PURPOSE: To evaluate the efficacy and the safety of FOLFIRI-bevacizumab (B) in the 2nd line therapy of metastatic colorectal carcinoma (MCRC). METHODS: Between March 2006 and July 2009 35 patients with MCRC were treated with 2nd line therapy FOLFIRI- B (irinotecan 180 mg/m(2) D1, folinic acid 200 mg/m(2) D1, 5-fluorouracil/5 FU 400 mg/m(2) bolus D1, followed by 5 FU 2600 mg/m(2) 46-h continuous infusion, and bevacizumab 5 mg/kg D1, every 2 weeks) Their data were collected and analysed. RESULTS: The patient median age was 54 years (range 36-75). One patient (2.8%) had received oxaliplatin-based adjuvant chemotherapy and 33 patients (94.3%) were exposed to oxaliplatin during first line chemotherapy for MCRC. The median follow up period was 12.2 months (range 1.5-37.9). Complete remission (CR) was achieved in 5.7% of the patients and the sum of CR and partial remission (PR) was 11.4%. Disease control (CR+PR+stable disease/SD) was registered in 74.3% of the patients. During follow up, progression (PD) was seen in 32 (91.4%) patients and 23 (65.7%) patients had died. The median progression free survival (PFS) was 7.4 months (95%CI 5.5-9.3) and the median overall survival (OS) 13 months (95%CI 8.8-17.2). Grade 3-4 toxicity requiring delay of chemotherapy was observed in 12 (34.3%) patients with 10 patients (28.6%) having neutropenia and 2 (5.7%) diarrhea. CONCLUSION: FOLFIRI-B may be an efficient and safe choice in the 2nd line treatment of patients with MCRC previously treated with oxaliplatin.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Colorectal Neoplasms/drug therapy , Adult , Aged , Antibodies, Monoclonal, Humanized/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Bevacizumab , Camptothecin/administration & dosage , Camptothecin/analogs & derivatives , Colorectal Neoplasms/mortality , Colorectal Neoplasms/pathology , Female , Fluorouracil/administration & dosage , Humans , Leucovorin/administration & dosage , Male , Middle Aged , Neoplasm Metastasis
12.
J BUON ; 16(3): 469-72, 2011.
Article in English | MEDLINE | ID: mdl-22006752

ABSTRACT

PURPOSE: The purpose of this study was to report the clinical course and outcome of patients suffering from advanced cholangiocarcinoma (CCA). METHODS: The medical records of 93 patients with unresectable or metastatic CCA were retrospectively analyzed. RESULTS: Out of 93 patients, 53 (64.9%) were initially managed with palliative biliary drainage (PBD). Cisplatinbased regimens were administered to 18 (19.3%) patients, and non-cisplatin regimens (mainly 5-fluorouracil [5-FU]- based) were administered to 23 (24.8%) patients. Of all 93 patients 53 (55.9%) did not receive chemotherapy. The median overall survival (OS) for all patients was 6.1 months and was significantly higher in patients treated with chemotherapy as compared to those without chemotherapy (p=0.002). However, no difference in OS was seen in patients treated with cisplatin- or 5-FU-based chemotherapy. We noticed that a high number of patients were not referred to a medical oncologist even for advice. CONCLUSION: The relief of bile duct obstruction is an important part of the initial patient management. One of the main observations of this study was that systemic chemotherapy significantly improved survival. Increased awareness of the medical oncologists' role in the management of CCA can increase the number of patients who can have access to chemotherapy.


Subject(s)
Bile Duct Neoplasms/drug therapy , Bile Ducts, Intrahepatic , Cholangiocarcinoma/drug therapy , Adult , Aged , Aged, 80 and over , Bile Duct Neoplasms/mortality , Cholangiocarcinoma/mortality , Female , Humans , Male , Middle Aged
13.
J BUON ; 16(3): 557-60, 2011.
Article in English | MEDLINE | ID: mdl-22006766

ABSTRACT

PURPOSE: Comorbidities in cancer patients can adversely affect the management and outcome of their primary illnesses at all levels from diagnosis to therapy. We sought to examine comorbid conditions of cancer patients, treated at 4 university hospitals, each representing a different geographic location in Turkey. METHODS: A total of 769 consecutive cancer patients presenting to outpatient clinics were recruited between November 2007 and May 2008. The patients filled in a questionnaire on comorbidities. Based on the questionnaire, Charlson Comorbidity Index (CCI( was calculated. RESULTS: The patient median age was 55 years (range 21-87) and 456 (59.3%) were female. Breast (36.5%), colorectal (21.4%) and lung cancers (13.9%) were the 3 most frequent malignancies. Of the patients, 59.3% had at least one comorbid disease and 46.3% were using at least one medication daily. The most frequent comorbidities were hypertension (25.3%), diabetes mellitus (13.1%) and peptic ulcer (7.7%). Increasing age positively correlated with the extent of comorbidities (r=0.30, p<0.001), number of medications (r=0.32, p<0.001) and the CCI (r=0.20, p<0.001). CONCLUSION: It is crucial to remember that comorbid illnesses are not rare and many patients are treated for conditions unrelated to their cancer, which potentially may affect various stages of their clinical management.


Subject(s)
Neoplasms/complications , Adult , Age Factors , Aged , Aged, 80 and over , Comorbidity , Female , Humans , Male , Middle Aged , Turkey
14.
J BUON ; 16(2): 247-52, 2011.
Article in English | MEDLINE | ID: mdl-21766493

ABSTRACT

PURPOSE: The aim of this study was to compare the efficacy and toxicity of modified (m) FOLFOX4 (folinic acid, 5-fluorouracil [5-FU], and oxaliplatin) vs. FOLFIRI-B (folinic acid, 5-FU, irinotecan, and bevacizumab) as first-line treatment of metastatic colorectal carcinoma (MCRC). METHODS: The medical records of 89 MCRC patients treated with either mFOLFOX4 (group 1) or FOLFIRI-B (group 2) as first-line chemotherapy were evaluated retrospectively. RESULTS: Complete (CR) plus partial response (PR) were seen in 18 (36.7%) vs. 13 (32.5%) patients in the mFOLFOX4 vs. FOLFIRI-B, respectively (p=0.67). Median progression-free survival (PFS) was 9 months (95% CI 7.2- 9.5) vs. 10 months (95% CI 7.6-12.3) in group 1 vs. group 2, respectively (p=0.30). Median overall survival (OS) was 22 months (95% CI 17.6-26.3) and 19 months (95% CI 13-24.9) in group 1 and 2, respectively (p=0.32). There was no statistically significant difference in grade 3-4 hematological toxicity between the groups, but grade 3-4 grade weakness, diarrhea, nausea and vomiting was observed more frequently in the FOLFIRI-B patients (p=0.03, p=0.01, p=0.05, respectively). CONCLUSION: Our data suggest that mFOLFOX4 and FOLFIRI-B are equally effective as first-line chemotherapy in MCRC patients. This may partially be explained by the fact that almost 50% of those receiving FOLFOX in the first-line received FOLFIRI-B in the second-gline, an observation suggesting that bevacizumab in the second line may be as effective as in the first line.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Colorectal Neoplasms/drug therapy , Liver Neoplasms/drug therapy , Lung Neoplasms/drug therapy , Antibodies, Monoclonal/administration & dosage , Antibodies, Monoclonal, Humanized , Bevacizumab , Camptothecin/administration & dosage , Camptothecin/analogs & derivatives , Colorectal Neoplasms/pathology , Female , Fluorouracil/administration & dosage , Follow-Up Studies , Humans , Irinotecan , Leucovorin/administration & dosage , Liver Neoplasms/secondary , Lung Neoplasms/secondary , Male , Middle Aged , Neoplasm Recurrence, Local/drug therapy , Neoplasm Recurrence, Local/pathology , Organoplatinum Compounds/administration & dosage , Oxaliplatin , Retrospective Studies , Survival Rate , Treatment Outcome
15.
J BUON ; 15(4): 726-31, 2010.
Article in English | MEDLINE | ID: mdl-21229637

ABSTRACT

PURPOSE: to inform healthy women about breast cancer and screen them, as well as to look for any relationship between demographic and clinical findings and breast cancer. METHODS: thirty-five health teams were created prior to the study. The teams were primarily trained for breast examination and for screening methods to detect breast cancer. RESULTS: a total of 77,934 subjects were evaluated. Clinical breast examination (CBE) was performed in 66% (n=51,706) of the participants. The characteristics of the subjects in the examined group were similar to those in the group refusing examination. The percentage of the subjects who declined examination was 2-fold higher in the ≥ 60 year age group compared to younger women. A breast mass was detected in 2,838 (6%) subjects who had undergone breast examination. Lower educational level and urban dwellers showed higher incidence of suspicious mass in CBE. Fifty-eight women were diagnosed with breast cancer. The cumulative incidence of breast cancer was 7.5/10.000 for all of the study population and 10.1/10.000 for women with CBE. CONCLUSION: elderly subjects, those living in rural areas and women with low educational and lower socio-economic levels should be convinced to undergo screening for breast cancer.


Subject(s)
Attitude to Health , Breast Neoplasms/diagnosis , Breast Neoplasms/psychology , Mammography/psychology , Mass Screening , Adolescent , Adult , Breast Neoplasms/epidemiology , Cross-Sectional Studies , Demography , Educational Status , Female , Humans , Middle Aged , Prognosis , Turkey/epidemiology , Women's Health , Young Adult
16.
Clin Lab Haematol ; 28(3): 211-4, 2006 Jun.
Article in English | MEDLINE | ID: mdl-16706940

ABSTRACT

The treatment of patients with non-Hodgkin's lymphoma (NHL) may be complicated by concomitant chronic hepatitis C virus (HCV) infection. Recent data suggest that HCV may also be a contributing factor to the development of this disease. Although antiviral treatment has occasionally been reported to result in the regression of lymphoma in patients with HCV infection, the importance of the control of this infection on the prognosis of lymphoma needs to be defined. Here we report a patient with diffuse large B-cell lymphoma who presented with a mass in her left breast. She had had HCV-related liver cirrhosis for 6 years. She was given rituximab monotherapy for three consecutive weeks, but treatment had to be discontinued as a result of hematological toxicity. HCV viral load also increased, but then decreased gradually after rituximab was stopped. She could be given no further therapy. Six months later she presented with spinal involvement with infiltration of the cauda equina. Though cranial-spinal radiotherapy and steroids were started, she died shortly thereafter. Though rituximab is an invaluable drug in the treatment of B-cell lymphomas, we believe that the use of such agents with potentially long-lasting effects on B lymphocytes requires extended vigilance for accelerated replication of hepatitis B and C viruses.


Subject(s)
Antibodies, Monoclonal/adverse effects , Antineoplastic Agents/adverse effects , Breast Neoplasms/drug therapy , Hepacivirus/drug effects , Lymphoma, B-Cell/drug therapy , Lymphoma, Large B-Cell, Diffuse/drug therapy , Antibodies, Monoclonal, Murine-Derived , Breast Neoplasms/complications , Fatal Outcome , Female , Hepacivirus/physiology , Hepatitis C, Chronic/complications , Humans , Lymphoma, B-Cell/virology , Lymphoma, Large B-Cell, Diffuse/virology , Middle Aged , Rituximab , Viral Load , Virus Replication/drug effects
17.
Leuk Lymphoma ; 46(12): 1825-28, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16353314

ABSTRACT

Posterior leukoencephalopathy syndrome is a recently described syndrome involving mainly parieto-occipital gray/white matter of the brain. It occurs secondary to various clinical entities, like hypertension and immunosuppressive therapy. Few cases after combination chemotherapy have been reported. This study describes a 36-year-old woman with primary refractory T-cell lymphoma, who developed central nervous system toxicity due to treatment with intrathecal methotrexate and intravenous ifosfamide, idarubicine and etoposide given as a salvage regimen. Both clinical features as well as magnetic resonance imaging findings were typical for posterior leukoencephalopathy syndrome. The patient died despite anti-hypertensive therapy and haemodialysis. Central nervous system toxicity related to chemotherapeutics and posterior leukoencephalopathy syndrome are discussed briefly.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/adverse effects , Leukoencephalopathy, Progressive Multifocal/chemically induced , Lymphoma/drug therapy , Adult , Biopsy , Etoposide/administration & dosage , Fatal Outcome , Female , Hemoglobins/metabolism , Humans , Idarubicin/administration & dosage , Ifosfamide/administration & dosage , Leukoencephalopathy, Progressive Multifocal/pathology , Lymphoma/pathology , Magnetic Resonance Imaging
18.
J Chemother ; 17(4): 452-3, 2005 Aug.
Article in English | MEDLINE | ID: mdl-16167527

ABSTRACT

Pharmacokinetic properties of many antineoplastic agents or their metabolites change with organ dysfunction. Unfortunately, chemotherapy doses determined in phase I and II studies in patients with normal hepatic and renal reserves are not usually applicable to those with hepatic and/or renal dysfunction. Considering the high incidence of colorectal adenocarcinoma, it is not unusual for a colorectal cancer patient to be on chronic hemodialysis. We report a patient with metastatic colorectal cancer on chronic hemodialysis who tolerated weekly irinotecan at 50 mg/m2 well without significant toxicity. We briefly discuss therapeutic dose modification in such patients.


Subject(s)
Adenocarcinoma/drug therapy , Adenocarcinoma/secondary , Camptothecin/analogs & derivatives , Colorectal Neoplasms/drug therapy , Colorectal Neoplasms/surgery , Liver Neoplasms/secondary , Renal Dialysis/methods , Adenocarcinoma/surgery , Camptothecin/administration & dosage , Colorectal Neoplasms/pathology , Diabetic Nephropathies/diagnosis , Diabetic Nephropathies/therapy , Drug Administration Schedule , Follow-Up Studies , Humans , Infusions, Intravenous , Irinotecan , Lymphatic Metastasis , Male , Middle Aged , Risk Assessment , Treatment Outcome
20.
Ann Oncol ; 15(11): 1622-6, 2004 Nov.
Article in English | MEDLINE | ID: mdl-15520062

ABSTRACT

BACKGROUND: Current understanding of hemostatic systems enables us to better explore the enigmatic pathobiology of tamoxifen (TAM)-induced thrombotic diathesis. We have therefore aimed to assess the hemostatic changes in breast cancer patients receiving TAM on an adjuvant basis. PATIENTS AND METHODS: The study population consisted of 43 female patients with hormone receptor-positive breast cancer who received TAM 20 mg/day as part of their adjuvant treatment. Mean age was 52+/-12 years (range 25-74). Twenty-one patients (49%) were premenopausal. Plasma samples were collected prior to and following 6 months of TAM therapy and were assayed for total tissue factor pathway inhibitor (TFPI), free TFPI, lipid-bound TFPI, thrombomodulin, D dimer, activated protein C resistance (APC res), factors VIIa, II, V, VII and X, and global fibrinolytic capacity (GFC). RESULTS: Median total TFPI decreased significantly from 48.5 ng/ml to 36.2 ng/ml (P=0.001), free TFPI from 10 to 7.6 ng/ml (P=0.001) and lipid-bound TFPI from 39.1 to 28.7 ng/ml (P=0.001). There were significant decreases in the levels of factor II (P=0.03), factor V (P=0.001), factor VII (P=0.06), thrombomodulin (P=0.01) and D dimer (P=0.001). However, APC res times were significantly prolonged (P=0.04). The remaining parameters that we have studied were not significantly affected. CONCLUSION: Our findings suggest that TAM tends to activate the coagulation pathway by counteracting major molecules involved in coagulation inhibition, namely TFPI and TM. As reflected by unchanged GFC, the drug appears to impair the expected compensatory activation of the fibrinolytic system, which removes fibrin polymers resulting from coagulation activation.


Subject(s)
Antineoplastic Agents, Hormonal/adverse effects , Breast Neoplasms/drug therapy , Tamoxifen/adverse effects , Thrombophilia/chemically induced , Activated Protein C Resistance/metabolism , Adult , Aged , Antineoplastic Agents, Hormonal/therapeutic use , Factor V/metabolism , Factor VII/metabolism , Factor VIIa/metabolism , Factor X/metabolism , Female , Fibrin Fibrinogen Degradation Products/metabolism , Fibrinolysis/drug effects , Humans , Lipoproteins/blood , Menopause/blood , Menopause/drug effects , Middle Aged , Neoplasm Staging , Prothrombin/metabolism , Tamoxifen/therapeutic use , Thrombomodulin/blood , Time Factors , Treatment Outcome
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