48 research outputs found
Non-Cross Resistant Sequential Single Agent Chemotherapy in First-Line Advanced Non-Small Cell Lung Cancer Patients: Results of a Phase II Study
Background. sequential chemotherapy can maintain dose intensity and preclude cumulative toxicity by increasing drug diversity.
Purpose. to investigate the toxicity and efficacy of the sequential regimen of gemcitabine followed by paclitaxel in first line advanced stage non-small cell lung cancer (NSCLC) patients with good performance status (PS).
Patients and methods. gemcitabine 1250 mg/m2 was administered on day 1 and 8 of course 1 and 2; Paclitaxel 150 mg/m2 on day 1 and 8 of course 3 and 4. Primary endpoint was response rate (RR), secondary endpoints toxicity and time to progression (TTP).
Results. Of the 21 patients (median age 56, range 38–80 years; 62% males, 38% females) 10% (2/21) had stage IIIB, 90% (19/21) stage IV, 15% PS 0, 85% PS 1. 20% of patients had a partial response, 30% stable disease, 50% progressive disease. Median TTP was 12 weeks (range 6–52 weeks), median overall survival (OS) 8 months (range 1–27 months), 1-year survival was 33%. One patient had grade 3 hematological toxicity, 2 patients a grade 3 peripheral neuropathy.
Conclusions. sequential administration of gemcitabine followed by paclitaxel in first line treatment of advanced NSCLC had a favourable toxicity profile, a median TTP and OS comparable with other sequential trials and might, therefore, be a treatment option for NSCLC patients with high ERCC1 expression
A randomized phase II study comparing two schedules of the 21-day regimen of gemcitabine and carboplatin in advanced non-small cell lung cancer
Purpose: Carboplatin area under the curve (AUC) 5 ml/min on day 1 with gemcitabine 1,250 mg/m2on day 1 and day 8 is a widely used regimen in advanced non-small cell lung cancer. Grade 3-4 thrombocytopenia and neutropenia are frequent. The aim of this study is to investigate whether toxicity of gemcitabine/carboplatin could be reduced by administering carboplatin on day 8 instead of
Training medical specialists to communicate better with patients with medically unexplained physical symptoms (MUPS). A randomized, controlled trial
Background Patients with medically unexplained physical symptoms (MUPS) are prevalent 25-50% in general and specialist care. Medical specialists and residents often find patients without underlying pathology difficult to deal with, whereas patients sometimes don't feel understood. We developed an evidence-based communication training, aimed to improve specialists' interviewing, information-giving and planning skills in MUPS consultations, and tested its effectiveness. Methods The intervention group in this multi-center randomized controlled trial received a 14-hour training program to which experiential learning and feedback were essential. Using techniques from Cognitive Behavioral Therapy, they were stimulated to seek interrelating factors (symptoms, cognitions, emotions, behavior, and social environment) that reinforced a patient's symptoms. They were taught to
Training specialists to write appropriate reply letters to general practitioners about patients with medically unexplained physical symptoms; A cluster-randomized trial.
Objective: To evaluate effects of a communication training for specialists on the quality of their reply letters to general practitioners (GPs) about patients with medically unexplained physical symptoms (MUPS). Methods: Before randomization, specialists included ≤3 MUPS patients in a multi-center cluster-randomized trial. In 14 h of MUPS-specific communication training, 2.5 h focused on reply letters. Letters were discussed with regard to reporting and answering GPs' referral questions and patients' questions, and to reporting findings, explaining MUPS with perpetuating factors and giving advice. After the training, all doctors again included ≤3 MUPS patients. Reply letters to GPs were assessed for quality and blindly rated on a digital scale. Results: We recruited 478 MUPS patients and 123 specialists; 80% of the doctors wrote ≥1 reply letters, 285 letters were assessed. Trained doctors reported (61% versus 37%, OR=2.55, F(1281)=6.60, pgroup*time=.01) and answered (63% versus 33%, OR=3.31, F(1281)=5.36, pgroup*time=.02) patients' questions more frequently than untrained doctors. Conclusion: Training improves reply letters with regard to patients' questions, but not with regard to the following: GPs' referral questions, somatic findings, additional testing, explaining, and advice. Practice implications: Training specialists to write appropriate reply letters needs more focus on explanation and advice
Peptides from the variable region of specific antibodies are shared among lung cancer patients
Late diagnosis of lung cancer is still the main reason for high mortality rates in lung cancer. Lung cancer is a heterogeneous disease which induces an immune response to different tumor antigens. Several methods for searching autoantibodies have been described that are based on known purified antigen panels. The aim of our study is to find evidence that parts of the antigen-binding-domain of antibodies are shared among lung cancer patients. This was investigated by a novel approach based on sequencing antigen-binding- fragments (Fab) of immunoglobulins using proteomic techniques without the need of previously known antigen panels. From serum of 93 participants of the NELSON trial IgG was isolated and subsequently digested into Fab and Fc. Fab was purified from the digested mixture by SDS-PAGE. The Fab containing gel-bands were excised, tryptic digested and measured on a nano-LC-Orbitrap-Mass- spectrometry system. Multivariate analysis of the mass spectrometry data by linear canonical discriminant analysis combined with stepwise logistic regression resulted in a 12-antibody-peptide model which was able to distinguish lung cancer patients from controls in a high risk population with a sensitivity of 84% and specificity of 90%. With our Fab-purification combined Orbitrap-mass-spectrometry approach, we found peptides from the variable-parts of antibodies which are shared among lung cancer patients
Prognostic value and kinetics of circulating endothelial cells in patients with recurrent glioblastoma randomised to bevacizumab plus lomustine, bevacizumab single agent or lomustine single agent. A report from the Dutch Neuro-Oncology Group BELOB trial
Background:Angiogenesis is crucial for glioblastoma growth, and anti-vascular endothelial growth factor agents are widely used in recurrent glioblastoma patients. The number of circulating endothelial cells (CECs) is a surrogate marker for endothelial damage. We assessed their kinetics and explored their prognostic value in patients with recurrent glioblastoma.Methods:In this side study of the BELOB trial, 141 patients with recurrent glioblastoma were randomised to receive single-agent bevacizumab or lomustine, or bevacizumab plus lomustine. Before treatment, after 4 weeks and after 6 weeks of treatment, CECs were enumerated.Results:The number of CECs increased during treatment with bevacizumab plus lomustine, but not during treatment in the single-agent arms. In patients treated with lomustine single agent, higher absolute CEC numbers after 4 weeks (log 10 CEC hazard ratio (HR) 0.41, 95% CI 0.18-0.91) and 6 weeks (log 10 CEC HR 0.16, 95% CI 0.05-0.56) of treatment were associated with improved overall survival (OS). Absolute CEC numbers in patients receiving bevacizumab plus lomustine or bevacizumab single agent were not associated wit
Oral UFT, etoposide and leucovorin in recurrent non-small cell lung cancer: a non-randomized phase II study
Background: Oral treatment regimens with few side effects are appealing in the 2nd or 3rd line treatment of non-small cell lung cancer (NSCLC) patients. Purpose: The aim was to investigate the efficacy and toxicity of the oral combination etoposide, Uracil-Tegafur (UFT) and leucovorin in 2nd or 3rd line in Caucasian patients with advanced NSCLC. Methods: Etoposide 50 mg/m(2), UFT 250 mg/m(2) and leucovorin 90 mg (fixed dose) were dosed in 3 gifts approximately 8 h apart for 14 days followed by 1 week rest every 3 weeks until progressive disease (PD). Primary endpoint was response rate (RR), secondary endpoints toxicity and time to progression (TTP). Results: The median number of cycles was 3.5 (95% CI 2-5): 9 patients received >6 cycles, 4>10 cycles. The median dose intensities for etoposide and UFT were 223 mg/m(2)/week (95% CI 213-232) and 1092 mg/m(2)/week (95% CI 1032-1167), the relative dose intensities 92% and 90%, respectively. Grade 3/4 neutropenia was observed in 12% (4/32), grade 3/4 thrombocytopenia in 15% (5/32), without febrile neutropenia. Non-hematological toxicity grade 3 included hepatic toxicity (6%), lethargy (15%), diarrhea (3%) and nausea (3%). One patient developed grade 4 arterial ischemia. Fourteen percent (95% CI 4-33%) (4/28) had a confirmed partial response, 57% (95% CI 44-81%) (16/28) stable disease and 28% (95% CI 19-56%) (8/28) progressive disease. The median TTP was 3 months (95% CI 1.3-4.4), the median overall survival 6.7 months (95% CI 4.0-9.3). Conclusion: The combination of UFT, etoposide and leucovorin is active in 2nd or 3rd line therapy of Caucasian NSCLC patients and because of its favourable toxicity profile this treatment warrants further investigation. (C) 2009 Elsevier Ireland Ltd. All rights reserved