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New developments in locally advanced nonsmall cell lung cancer.

ABSTRACT: Locally advanced nonsmall cell lung cancer, due to its varying prognosis, is grouped according to TNM stage IIIA, IIIB and IIIC. Developments over the last 3 years have been focused on the integration of immunotherapy into the combination treatment of a locally definitive therapy (surgery or radiotherapy) and chemotherapy. For concurrent chemoradiotherapy, consolidation therapy with durvalumab was established. Adjuvant targeted therapy has again gained increasing interest. In order to adapt treatment to the specific stage subgroup and its prognosis, fluorodeoxyglucose positron emission tomography/computed tomography and pathological evaluation of the mediastinum are important. Tumours should be investigated for immunological features and driver mutations. Regarding toxicity, evaluation of pulmonary and cardiac function, as well as symptoms and quality of life, is of increasing importance. To improve the management and prognosis of this heterogeneous entity, clinical trials and registries should take these factors into account.

SUBMITTER: Huber RM

PROVIDER: S-EPMC9488500 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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New developments in locally advanced nonsmall cell lung cancer.

Huber Rudolf M RM Kauffmann-Guerrero Diego D Hoffmann Hans H Flentje Michael M

European respiratory review : an official journal of the European Respiratory Society 20210505 160

Locally advanced nonsmall cell lung cancer, due to its varying prognosis, is grouped according to TNM stage IIIA, IIIB and IIIC. Developments over the last 3 years have been focused on the integration of immunotherapy into the combination treatment of a locally definitive therapy (surgery or radiotherapy) and chemotherapy. For concurrent chemoradiotherapy, consolidation therapy with durvalumab was established. Adjuvant targeted therapy has again gained increasing interest. In order to adapt trea ...[more]

PMID: 33952600

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Project description:BackgroundConventional nutritional supplements are not or only partly successful in inducing protein accretion in advanced cancer, suggesting an attenuated anabolic response. To prevent muscle wasting and its deleterious consequences, generating an anabolic response is crucial. Dietary essential amino acids (EAA) have anabolic properties in other wasting diseases; however, data in advanced cancer are lacking.Patients and methodsIn 13 patients with advanced nonsmall-cell lung cancer (NSCLC) (stage III and IV) and 11 healthy age-matched subjects, we measured protein synthesis and breakdown of the whole body, and net protein anabolism (difference between protein synthesis and breakdown) after intake of 14 g of free EAA with high leucine levels (EAA/leucine) versus a balanced amino acid mixture containing both EAA and non-EAA as present in whey protein, according to a randomized, double-blind, crossover design.ResultsProtein synthesis and net protein anabolism were higher after intake of the EAA/leucine than the balanced amino acid mixture (P < 0.001), independent of presence of cancer. A highly significant linear relationship between net protein anabolism and the amount of EAA available in the systemic circulation (R(2): 0.85, P < 0.001) was found in both groups. The presence of muscle or recent weight loss, systemic inflammatory response, or length of survival did not influence this relationship. High leucine levels in the EAA/leucine mixture was of no anabolic benefit.ConclusionsThere is no anabolic resistance or attenuated anabolic potential to intake of 14 g of EAA/leucine or balanced amino acid mixture in advanced (mainly stage III) NSCLC. The high anabolic potential of dietary EAA in cancer patients is independent of their nutritional status, systemic inflammatory response or disease trajectory, suggesting a key role of EAA in new nutritional approaches to prevent muscle loss, thereby improving outcome of patients with advanced cancer.ClinicaltrailsgovNCT01172314.

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New developments in locally advanced nonsmall cell lung cancer.

Publications

New developments in locally advanced nonsmall cell lung cancer.

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