Is there a benefit on survival of tyrosine-kinase inhibitors versus chemotherapy in first line in mutated EGFR patients with advanced non-small cell cancer (NSCLC)? A meta-analysis.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e18020-e18020
Author(s):  
Gaetan Des Guetz ◽  
Bernard Uzzan ◽  
Kader Chouahnia ◽  
Patrick Nicolas ◽  
Jean F. Morere

e18020 Background: Tyrosine-Kinase Inhibitors (TKIs) markedly improve Progression Free Survival (PFS) of advanced NSCLC patients mutated for Epidermal Growth Factor Receptor (EGFR). Results on Overall Survival (OS) are more questionable. Therefore, we performed a publication-based meta-analysis to further assess this issue. Methods: We did a PubMed query using keywords simultaneously (lung neoplasm, TKI, EGFR mutation, survival). We also searched for relevant abstracts in proceedings of ASCO, ESMO, WCLC annual meetings. We cross-checked all references from all articles. Only phase III randomized controlled trials comparing TKI and chemotherapy were included. We used EasyMA software. Results: The 6 eligible studies included 2223 patients (516 males, 1688 females, mostly Asian, median age 60 years, 2155 adenocarcinomas (97 %), 996 mutated tumors, 389 stage IIIB, 1572 Stage IV (71 %), 1989 never smokers (89.5 %). Four studies assessed gefitinib, 2 erlotinib. Chemotherapies were doublets including a platinum salt. Four studies included only mutated patients. Compared to chemotherapy, EGFR TKIs significantly improved PFS (HR=0.39, 95 % CI 0.28-0.53, random effect model). Conversely, OS was similar among patients who first received TKI or chemotherapy (HR=1.00, CI 0.83-1.22, fixed effect model). PFS was significantly worse among non mutated patients in the 2 studies including both mutated and wild-type EGFR patients, whereas OS was unchanged. Concerning side-effects, rash, diarrhoea and interstitial lung disease were significantly more frequent after TKI (RRs 5.00; 2.40 and 6.07). As expected, fatigue (RR 0.41), nausea/vomiting (0.19) and haematological disorders were all significantly more frequent after chemotherapy (RRs for neutropenia, thrombocytopenia and anaemia 0.08; 0.18 and 0.26). Conclusions: The major discrepancy between a markedly improved PFS and a similar OS after TKI compared with chemotherapy could be related to the high level of crossing-over between the 2 groups. We found no detrimental effect on OS of TKIs among wild-type patients.

2010 ◽  
Vol 06 (01) ◽  
pp. 43
Author(s):  
Pol Specenier ◽  
Jan B Vermorken ◽  
◽  

Two epidermal growth factor receptor (EGFR)-targeting strategies are used in recurrent and/or metastatic squamous cell cancer of the head and neck (SCCHN): monoclonal antibodies and small-molecule tyrosine kinase inhibitors. Thus far, the monoclonal antibody cetuximab has been studied in most detail. Based on the results of two randomised phase III trials, cetuximab in combination with platinum-based chemotherapy should be considered the new standard first-line regimen for patients with recurrent and/or metastatic disease for whom a platinum-based regimen regimen is considered the best treatment option. Other EGFR-directed monoclonal antibodies are under investigation. The role of EGFR tyrosine kinase inhibitors (TKIs) in SCCHN is less well established and early data on other targeted agents have also been disappointing thus far. Dual pathway inhibition may overcome resistance to single pathway inhibition.


Cancers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1643
Author(s):  
Prahathishree Mohanavelu ◽  
Mira Mutnick ◽  
Nidhi Mehra ◽  
Brandon White ◽  
Sparsh Kudrimoti ◽  
...  

Tyrosine kinase inhibitors (TKIs) are the frontline therapy for BCR-ABL (Ph+) chronic myeloid leukemia (CML). A systematic meta-analysis of 43 peer-reviewed studies with 10,769 CML patients compared the incidence of gastrointestinal adverse events (GI AEs) in a large heterogeneous CML population as a function of TKI type. Incidence and severity of nausea, vomiting, and diarrhea were assessed for imatinib, dasatinib, bosutinib, and nilotinib. Examination of combined TKI average GI AE incidence found diarrhea most prevalent (22.5%), followed by nausea (20.6%), and vomiting (12.9%). Other TKI GI AEs included constipation (9.2%), abdominal pain (7.6%), gastrointestinal hemorrhage (3.5%), and pancreatitis (2.2%). Mean GI AE incidence was significantly different between TKIs (p < 0.001): bosutinib (52.9%), imatinib (24.2%), dasatinib (20.4%), and nilotinib (9.1%). Diarrhea was the most prevalent GI AE with bosutinib (79.2%) and dasatinib (28.1%), whereas nausea was most prevalent with imatinib (33.0%) and nilotinib (13.2%). Incidence of grade 3 or 4 severe GI AEs was ≤3% except severe diarrhea with bosutinib (9.5%). Unsupervised clustering revealed treatment efficacy measured by the complete cytogenetic response, major molecular response, and overall survival is driven most by disease severity, not TKI type. For patients with chronic phase CML without resistance, optimal TKI selection should consider TKI AE profile, comorbidities, and lifestyle.


2006 ◽  
Vol 17 (8) ◽  
pp. 1185-1196 ◽  
Author(s):  
P. Schöffski ◽  
H. Dumez ◽  
P. Clement ◽  
A. Hoeben ◽  
H. Prenen ◽  
...  

2018 ◽  
Vol 25 (5) ◽  
Author(s):  
B. Melosky ◽  
P. Cheema ◽  
J. Agulnik ◽  
R. Albadine ◽  
D. G. Bebb ◽  
...  

BackgroundInhibition of the anaplastic lymphoma kinase (alk) oncogenic driver in advanced non-small-cell lung carcinoma (nsclc) improves survival. In 2015, Canadian thoracic oncology specialists published a consensus guideline about the identification and treatment of ALK-positive patients, recommending use of the alk inhibitor crizotinib in the first line. New scientific literature warrants a consensus update.MethodsClinical trials of alk inhibitor were reviewed to assess benefits, risks, and implications relative to current Canadian guidance in patients with ALK-positive nsclc.ResultsRandomized phase iii trials have demonstrated clinical benefit for single-agent alectinib and ceritinib used in treatment-naïve patients and as second-line therapy after crizotinib. Phase ii trials have demonstrated activity for single-agent brigatinib and lorlatinib in further lines of therapy. Improved responses in brain metastases were observed for all second- and next/third-generation alk tyrosine kinase inhibitors in patients progressing on crizotinib. Canadian recommendations are therefore revised as follows:Patients with advanced nonsquamous nsclc have to be tested for the presence of an ALKrearrangement.Treatment-naïve patients with ALK-positive disease should initially be offered single-agent alectinib or ceritinib, or both sequentially.Crizotinib-refractory patients should be treated with single-agent alectinib or ceritinib, or both sequentially.Further treatments could include single-agent brigatinib or lorlatinib, or both sequentially.Patients progressing on alk tyrosine kinase inhibitors should be considered for pemetrexed-based chemotherapy.Other systemic therapies should be exhausted before immunotherapy is considered.SummaryMultiple lines of alk inhibition are now recommended for patients with advanced nsclc with an ALKrearrangement.


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