scholarly journals Timing of Metabolic Response Monitoring During Erlotinib Treatment in Non-Small Cell Lung Cancer

2014 ◽  
Vol 55 (7) ◽  
pp. 1081-1086 ◽  
Author(s):  
M. H. van Gool ◽  
T. S. Aukema ◽  
E. E. Schaake ◽  
H. Rijna ◽  
R. A. Valdes Olmos ◽  
...  
2018 ◽  
Author(s):  
Lotte M Knapen

Crizotinib is an orally available tyrosine kinase inhibitor, approved for treatment of anaplastic lymphoma kinase (ALK) and c-ros oncogene 1 (ROS1) rearrangement-positive non-small cell lung cancer (NSCLC). According to the product leaflet, crizotinib capsules should be swallowed whole, and should not be crushed, dissolved or opened. However, this manner of administration is not always possible. At present, literature is lacking regarding the absorption of crizotinib via percutaneous endoscopic jejunostomy (PEJ) tube. We report a case of a patient with ALK+ NSCLC who was administered crizotinib via PEJ tube. An adequate steady state crizotinib trough concentration was reached, resulting in a metabolic response. Safety for the caregiver was ensured since the administration of crizotinib was made without crushing or opening the capsule. This case supports the option for providing crizotinib via PEJ tube in patients who have ALK+ NSCLC and are unable to swallow whole capsules. This option might also apply to the administration of other ALK inhibitors. Keywords Crizotinib, ALK inhibitor, percutaneous endoscopic jejunostomy tube, pharmacokinetics, non-small cell lung cancer.


2012 ◽  
Vol 30 (22) ◽  
pp. 2731-2738 ◽  
Author(s):  
Eva E. Schaake ◽  
Ingrid Kappers ◽  
Henk E. Codrington ◽  
Renato A. Valdés Olmos ◽  
Hendrik J. Teertstra ◽  
...  

Purpose The development of targeted therapy has introduced new options to improve treatment outcome in selected patients. The objective of this prospective study was to investigate the safety of preoperative erlotinib treatment and the (in vivo) response in patients with early-stage resectable non–small-cell lung cancer (NSCLC). Patients and Methods This study was designed as an open-label phase II trial, performed in four hospitals in the Netherlands, according to a Simon's minimax two-stage procedure. Initially, operable patients with early-stage NSCLC (n = 15) were entered from an enriched population (never-smoker, female sex, nonsquamous histology, or Asian ethnicity); thereafter, unselected patients were included to a total of N = 60. Patients received preoperative erlotinib 150 mg once daily for 3 weeks. Response to treatment was evaluated using [18F] fluorodeoxyglucose positron emission tomography (PET) and computed tomography (CT) scans during treatment and histologic examination of the resection specimen. Primary end points were toxicity and pathologic response. Results Sixty patients were included. Seven patients stopped treatment prematurely (12%). Skin toxicity was present in 37 patients (62%), and diarrhea was present in 21 patients (35%). PET evaluation revealed metabolic response (> 25% standardized uptake value decrease) in 16 patients (27%); CT evaluation using Response Evaluation Criteria in Solid Tumors (RECIST) showed response in three patients (5%). At surgery, no unexpected complications occurred. Pathologic examination showed more than 50% necrosis in 14 patients (23%), of whom three (5%) had more than 95% tumor necrosis. The response rate in the enriched population was 34% (10 of 29 patients). Conclusion According to predefined criteria, neoadjuvant erlotinib has low toxicity and sufficient activity to deserve further testing in future studies in an enriched population.


Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 547
Author(s):  
Nobutaka Kataoka ◽  
Yusuke Kunimatsu ◽  
Rei Tsutsumi ◽  
Nozomi Tani ◽  
Izumi Sato ◽  
...  

Chemoimmunotherapy has become the standard of care as the first-line treatment of advanced or recurrent non-small-cell lung cancer (NSCLC). The bevacizumab-containing chemoimmunotherapy regimen is theoretically more effective than a non-bevacizumab-containing regimen via two mechanisms: a superior outcome of bevacizumab-containing chemothrerapy than the standard platinum doublet regimen, and the synergistic effect of bevacizumab with an immune checkpoint inhibitor (ICI). Bevacizumab effectively normalizes vascularization, especially when the vascular bed is damaged by previous treatment. Bevacizumab promotes immunomodulation when used with ICI. We describe a patient with nonsquamous NSCLC who returned 2.5 years after definitive chemoradiotherapy for postoperative locoregional recurrence in the right supraclavicular lymph node. Considering the destroyed vascular bed due to prior chemoradiotherapy, attaining vascular normalization was critical for effective drug delivery. The patient was treated with a bevacizumab-containing chemoimmunotherapy regimen, which resulted in a complete metabolic response. The patient responded well for 23 months and is receiving ongoing treatment. Thus, bevacizumab-containing chemoimmunotherapy could be advantageous in some recurrent cases after chemoradiotherapy.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 9050-9050
Author(s):  
Daniel Christian Christoph ◽  
Justin Ferdinandus ◽  
Martin Metzenmacher ◽  
Peter Kessler ◽  
Lale Umutlu ◽  
...  

9050 Background: Recently reported, extended follow-up data from KEYNOTE-024 or -010 indicates that non-small-cell lung cancer (NSCLC) patients can experience long-term benefit from immunotherapy irrespective of discontinuation (per protocol: 35 cycles ∼24 months) or type of response in computed tomography (CT). Similar results were observed in the pooled analysis of 5-year follow-up data from CheckMate-017 and -057. This raises the question, whether patients may safely discontinue immunotherapy after achieving durable response. However, recently published results from CheckMate-153 demonstrated inferior survival rates in patients ceasing immunotherapy after one year, therefore optimal treatment duration of immunotherapy in advanced NSCLC remains unknown. Protocols from published Phase-III trials implemented treatment for a period of approximately 24 months or until evidence of disease progression or unbearable toxicity. Therefore, the ideal duration of immunotherapy remains unclear, and finding markers of beneficial outcome is of great importance. Here, we determine the proportion of complete metabolic responses (CMR) in patients that have not progressed after 24 months of immunotherapy. Methods: This is a retrospective analysis of forty-five patients with positron emission tomography using 2-[18F]fluoro-2-deoxy-D-glucose (FDG-PET) imaging for assessment of residual metabolic activity after at least 24 months of immunotherapy. Lesion-uptake in FDG PET on or below background level (using mediastinum as reference) was considered as CMR. Time until best objective morphological response including disease stabilization was measured from start of immunotherapy until first stable CT-scan (i.e. no progression or further response compared to previous scan) using RECIST 1.1. Results: Out of 45 patients, 29 patients had a CMR (64%). CMR was observed more frequently in non-first line patients. Patients with CMR were younger (median 65.7 vs. 75.5, P = 0.03). Fourteen patients with CMR have discontinued therapy and have not progressed until time of analysis; however median follow-up was only 5.6 (range 0.8-17.0) months. Conclusions: After a minimum of 24 months of palliative immunotherapy for NSCLC, CMR occurred in almost two thirds of patients. Potentially, achievement of CMR might identify patients, for whom palliative immunotherapy may be safely discontinued.


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