44 research outputs found
Should esophageal resections for cancer be performed in high-volume centers only?
No full textEsophageal resection remains the only curative option for esophageal cancer, and therefore, improving the outcome of surgery is the best method of reducing mortality. Several studies have evaluated the postoperative morbidity and mortality after esophageal resection, analyzing the relationship between volume or surgical experience and operative mortality. In this article, the evidence supporting the referral of esophageal surgery to centers with a greater experience (i.e., high-volume centers) is reviewed in order to establish the best practice
Histologic Transformation in EGFR-Mutant Lung Adenocarcinomas: Mechanisms and Therapeutic Implications
No full textWith the advent of potent EGFR tyrosine kinase inhibitors (TKIs), the treatment landscape of EGFR-mutant lung adenocarcinomas has changed drastically in recent years. However, the development of resistance to EGFR TKIs remains a critical barrier to improving survival in these patients. Histologic transformations to small cell lung carcinoma, large cell neuroendocrine carcinoma, squamous cell carcinoma, and the sarcomatoid phenotype have been increasingly recognized as important mechanisms of resistance. In this article, we summarize the known biological bases for such phenotypic switches in regard to EGFR TKIs and describe novel pathways that might be harnessed to develop effective novel therapies for patients with EGFR-mutant non-small cell lung cancers
Survivorship support in head and neck cancer: American Head and Neck Society survey
No full textBackgroundThe value of supporting cancer survivors beyond formal treatment has become increasingly recognized among clinicians who care for patients with head and neck cancer.MethodsA survey was developed by the American Head and Neck Society (AHNS) Survivorship Committee and distributed to members of the AHNS electronically.ResultsThe survey was distributed to 1403 AHNS members, with 202 responses (14.4%). Among survivorship topics, respondents were most likely to address detection of recurrence/second primary malignancies (97.5%), dysphagia (93.1%), and thyroid function (90.1%) with their patients; they were least likely to address sleep disturbance/apnea (27.7%) and body and self‐image issues (29.7%.) Less than half provide patients with a written treatment summary (43.1%) or follow‐up care plan (36.9%).ConclusionsThese results highlight the need for improved survivorship care planning and offer an opportunity for the development of educational and survivorship research in head and neck cancer care.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154907/1/hed26066_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154907/2/hed26066.pd
Single-Agent Versus Combination Chemotherapy in Patients with Advanced Non-small Cell Lung Cancer and a Performance Status of 2: Prognostic Factors and Treatment Selection Based on Two Large Randomized Clinical Trials
No full textPurpose:Data from two randomized phase III trials were analyzed to evaluate prognostic factors and treatment selection in the first-line management of advanced non-small cell lung cancer patients with performance status (PS) 2.Patients and Methods:Patients randomized to combination chemotherapy (carboplatin and paclitaxel) in one trial and single-agent therapy (gemcitabine or vinorelbine) in the second were included in these analyses. Both studies had identical eligibility criteria and were conducted simultaneously. Comparison of efficacy and safety was performed between the two cohorts. A regression analysis identified prognostic factors and subgroups of patients that may benefit from combination or single-agent therapy.Results:Two hundred one patients were treated with combination and 190 with single-agent therapy. Objective responses were 37 and 15%, respectively. Median time to progression was 4.6 months in the combination arm and 3.5 months in the single-agent arm (p < 0.001). Median survival times were 8.0 and 6.6 months, and 1-year survival rates were 31 and 26%, respectively. Albumin <3.5 g, extrathoracic metastases, lactate dehydrogenase ≥200 IU, and 2 comorbid conditions predicted outcome. Patients with 0–2 risk factors had similar outcomes independent of treatment, whereas patients with 3–4 factors had a nonsignificant improvement in median survival with combination chemotherapy.Conclusion:Our results show that PS2 non-small cell lung cancer patients are a heterogeneous group who have significantly different outcomes. Patients treated with first-line combination chemotherapy had a higher response and longer time to progression, whereas overall survival did not appear significantly different. A prognostic model may be helpful in selecting PS 2 patients for either treatment strategy
Complexity of Delivering Precision Medicine: Opportunities and Challenges
No full text Precision medicine has emerged as a tool to match patients with the appropriate treatment based on the precise molecular features of an individual patient’s tumor. Although examples of targeted therapies exist resulting in dramatic improvements in patient outcomes, comprehensive genomic profiling of tumors has also demonstrated the incredible complexity of molecular alterations in tissue and blood. These sequencing methods provide opportunities to study the landscape of tumors at baseline and serially in response to treatment. These tools also serve as important biomarkers to detect resistance to treatment and determine higher likelihood of responding to particular treatments, such as immune checkpoint blockade. Federally funded and publicly available data repositories have emerged as mechanisms for data sharing. In addition, novel clinical trials are emerging to develop new ways of incorporating molecular matched therapy into clinical trials. Various challenges to delivery of precision oncology include understanding the complexity of advanced tumors based on evolving “omics” and treatment resistance. For physicians, determining when and how to incorporate genetic and molecular tools into clinic in a cost-effective manner is critical. Finally, we discuss the importance of well-designed prospective clinical trials, biomarkers such as liquid biopsies, the use of multidisciplinary tumor boards, and data sharing as evidence-based medicine tools to optimally study and deliver precision oncology to our patients. </jats:p
Acquired Resistance to PD-1/PD-L1 Blockade in Lung Cancer: Mechanisms and Patterns of Failure
No full textImmunotherapy is now the preferred treatment for most lung cancer patients. It is used to treat unresectable stage III non-small-cell lung cancer and is the first-line therapy for non-oncogene-driven advanced/metastatic non-small-cell lung cancer patients (either alone or in combination with chemotherapy). Unfortunately, most patients that respond initially to immunotherapy develop resistance over time, thus limiting the durability of immunotherapy. A better understanding of the mechanisms of acquired resistance is urgently needed to expand the benefit of immunotherapy in lung cancer patients. This review aims to summarize the mechanisms and clinical outcomes of acquired resistance of anti-PD-1/PD-L1 therapies in non-small-cell lung cancer patients
