Background: Activating mutations in the epidermal growth factor receptor (EGFR) are initially responsive to tyrosine kinase inhibitors (TKIs), but responses to TKIs is not permanent and drug resistance eventually happens for almost all patients. Subsequent studies found different resistance mechanisms, among which (EGFR) T790M mutation is the most important mechanism of TKI treatment failure. Using cell-free DNA (cfDNA) is a new way for diagnosing resistance mutations in EGFR.
View Article and Find Full Text PDFBackground: Lung cancer is the leading cause of cancer death. Among different lung cancer histopathologies, small cell lung cancer (SCLC) has been known to be the most aggressive and lethal nature. This study analyzed the epidemiological characteristics, outcomes, and trends of SCLC at a tertiary cancer care center in Iran.
View Article and Find Full Text PDFBackground: Lung cancer is the leading cause of cancer deaths worldwide in both men and women, and non-small cell lung cancer (NSCLC) accounts for the majority (~ 85%) of lung cancers. This post-marketing surveillance (PMS) study aimed to evaluate the safety of Pemetrexed (Alvopem, NanoAlvand, Iran) in Iranian patients with lung cancer or mesothelioma.
Methods: The present study is an observational, single-center, open-label, and post-authorization study.
Background: Thyrosin kinase inhibitors (TKIs) is approved for the first line treatment of non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutation. This study performed to assess clinical effectiveness and safety of Erlova (generic form of Erlotinib).
Methods: Somatic mutations of EGFR gene were studied in tumor tissue by polymerase chain reaction (PCR) and bi-directional sequencing in 513 chemonaive and histologically verified lung adenocarcinoma Iranian patients.
Unlabelled: Increasing knowledge about the molecular profile of tumors has led to personalized treatment for achieving better outcomes in patients with nonsmall cell lung cancer (NSCLC). Currently, finding exact somatic genomic changes of tumor has gained great importance. On the other hand, crescendoing needs to actual tumor tissue at different time points during cancer treatment may produce major discomfort for NSCLC patients.
View Article and Find Full Text PDFBackground: Plasma circulating cell-free (cf) DNA is regarded as a source of tumor DNA. Based on availability of blood tissue for the purposes of early detection of cancer and patients' follow-up, several studies have evaluated concentration of cf DNA in cancer patients in association with tumor features. In the present study, we assessed concentration of cf DNA in lung cancer patients with two commercial kits (MN and QIAGEN) to find whether it can be used as a prognostic biomarker.
View Article and Find Full Text PDFBackground: Thymoma is relatively rare tumor. Prognosis and patients' outcome vary across different studies. We aimed to study the predisposing factors causing tumor recurrence in thymoma patients.
View Article and Find Full Text PDFBackground: This study performed to assess the efficacy and safety of Formeta (generic form of Pemetrexed) plus Carboplatin as first-line chemotherapy in advanced stage, non- squamous, non small cell lung cancer ( NSCLC) in Iran. Methods: This was a post marketing single-arm phase IV efficacy study of Formeta (manufactured by Oncomed.,Czech Republic ) and Carboplatin in chemo-naive advanced non-squamous NSCLC Iranian patients.
View Article and Find Full Text PDFLung cancer, the leading cause of cancer mortality, needs urgent development of newly qualified diagnostic and therapeutic biomarkers. Recently, Human Endogenous Retroviruses (HERVs) have been introduced for cancer diagnosis. In this case-control study, we have collected blood samples from 60 lung cancer patients and 20 healthy controls.
View Article and Find Full Text PDFMinichromosome maintenance complex component 6 (MCM-6) is one of the six proteins of the MCM family, which are involved in the initiation of DNA replication, represents a marker of proliferating cells. The goal of this study was to evaluate the prognostic relevance of the neoplastic cell proliferation rate in patients with Hodgkin's lymphoma (HL). We evaluated the formalin-fixed paraffin-embedded lymph node biopsy specimens from 55 patients by using monoclonal antibody against MCM-6 and compared these findings with clinical data and treatment outcome.
View Article and Find Full Text PDFBackground: Cisplatin has been associated with irreversible hearing damage. Up to now, there is no therapeutic intervention showing benefit in preventing Cisplatin-induced ototoxicity. The aim of this study was to determine risk factors contributing to hearing impairment after cisplatin administration in Iranian patients.
View Article and Find Full Text PDFBackground: Maintenance strategy has been used to improve survival in non-small cell lung cancer (NSCLC). We investigated whether switch maintenance therapy with vinorelbine improved progression free survival (PFS) after first-line chemotherapy with gemcitabine plus carboplatin.
Materials And Methods: In this single blind, parallel, phase 2, randomized trial, patients with NSCLC pathology, age >18 years, Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0-2, and advanced stage (IIIB and IV) were treated with up to 6 cycles of gemcitabine 1250 mg/m (day 1 and 8) plus carboplatin AUC 5 (day 1) every 3 weeks.
Background: Lung cancer has long been a leading cause of cancer related death in both women and men worldwide. The focus of this study was to review clinicopathological features of Iranian patients diagnosed with lung cancer.
Materials And Methods: Clinicopathological data of 1353 primary lung cancer patients diagnosed during 17 years (1997-2014) in the "National Institute of Tuberculosis and Lung Disease" (NRITLD), Tehran, Iran, were retrospectively reviewed.
We report a 45 year-old woman who had bilateral breast masses with extradural involvement. Pathologic report revealed malignant high-grade lymphoblastic lymphoma. Systemic chemotherapy was performed but 3 months later, lesions indicating relapse in bone and breast re-appeared.
View Article and Find Full Text PDFBackground: Patients with early stage breast cancer with same treatment strategy can have markedly different outcomes. Human epidermal growth factor receptor 2 (HER2/nue) gene amplification or the subsequent overexpression of protein has been proved to be associated with patient's outcome and response to anthracyclins-based regimens.
Objectives: This study assessed prognostic value of HER2/nue marker in patients with early stage breast cancer who received adjuvant chemotherapy with anthracyclins-based regimens.
The backbone of treatment in advanced non-small cell lung cancer is platinum-based doublet chemotherapy. We intended to compare the effectiveness of two commonly used regimens in real world practice. This single institute, parallel comparative post marketing study included 100 patients with chemo-naïve advanced (stage IIIB, IV) non-small cell lung cancer and Eastern Cooperative Oncology Group performance status of 0 to 2.
View Article and Find Full Text PDFBackground: The expressions of estrogen receptor (ER) and cell surface receptor, Tyrosine Kinase Human Epidermal Growth Factor Receptor 2 (HER 2), have emerged as the most important molecular biomarkers determining the breast cancer prognosis. In this study, interactions between ER and HER2 were assessed to determine if they modulate tumor characteristics.
Materials And Methods: Tissue samples from 120 patients with early stage breast cancer receiving adjuvant chemotherapy were reviewed to evaluate ER and HER2 status quantified by immunohistochemistry and fluorescence in situ hybridization, and the correlation of ER and HER2 with patient characteristics and tumor pathology was studied.
Thymoma is the most common tumor in the anterior mediastinum. A 56-year-old man presented unremitting and periodic chronic diarrhea of 9 weeks duration, and clinical examination revealed a huge nonhomogeneous mass lesion in the right lung and leukocytosis. He was treated with CHOP regimen (cyclophosphamide 1,200 mg/m(2), doxorubicin 50 mg/m(2), vincristine 1.
View Article and Find Full Text PDF