scholarly journals P2.13-04 Outcomes of ALK-Positive Non-Small-Cell Lung Cancer (NSCLC) Patients Treated with Crizotinib: A Multicenter Cohort Retrospective Study.

2018 ◽  
Vol 13 (10) ◽  
pp. S799
Author(s):  
P. Xing ◽  
Q. Wang ◽  
D. Ma ◽  
X. Hao ◽  
M. Wang ◽  
...  
2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S151-S151
Author(s):  
M A Sughayer ◽  
B Maraqa ◽  
M Al-Ashhab

Abstract Introduction/Objective ALK rearrangement is an important oncogenic driver in a substantial portion of non-small cell lung cancer (NSCLC) patients ranging from 2-7%. Treatment options such as ALK tyrosine kinase inhibitors (TKI) improve progression-free survival and overall survival. Candidates for such treatment are selected based on the identification of the ALK rearrangement. While fluorescence in situ hybridization (FISH) was considered the gold standard method, the availability of a robust FDA-approved companion diagnostic immunohistochemistry (IHC) assay has led to a paradigm shift in ALK testing. The purpose of this study is to determine the prevalence of ALK rearrangement in Jordanian NSCLC patients along with their clinicopathological characteristics and to compare the results of IHC and FISH methods for detecting ALK rearrangements. Methods/Case Report A retrospective study was conducted on 449 Jordanian King Hussein Cancer Center patients with NSCLC whose biopsy samples were tested for ALK rearrangement using FISH and or IHC (clone D5F3) in the period between 2018 and 2020. Results (if a Case Study enter NA) During the study period, the rate of ALK positivity by either IHC or FISH method was 4 percent (18 ALK positive cases out of 449 cases of non-small cell lung cancer). Seven cases were positive for both IHC and FISH, and nine cases were positive for IHC with no confirmation by FISH method; one case was ALK positive by IHC and negative by FISH with a significant response to ALK TKI; one case was IHC negative but FISH positive, with no ALK TKI therapy. The calculated sensitivity of ALK D5F3 immunostain compared to FISH results in the current study is 87.5% while the specificity is 96%. ALK positive patients were significantly younger than those with negative results (p-value=0.051), and women were three times more likely than men to have the rearrangement (p-value=0.013). Rearrangement was more likely to be found in nonsmokers/light or ex-smokers (p-value= 0.013). All patients had clinical stage IV or III disease at presentation with stage IV found in tow thirds of the patients. Conclusion ALK rearrangement is found in 4% of all NSCLC in Jordan. Patients are more likely to be younger, females and light or nonsmokers with an advanced stage disease at presentation. IHC is an acceptable alternative to FISH for ALK testing with reasonable sensitivity and specificity in addition to its advantages in terms of robustness, turnaround time and cost savings


2020 ◽  
Author(s):  
David Heredia ◽  
Feliciano Barrón ◽  
Andrés F. Cardona ◽  
Saul Campos ◽  
Jerónimo Rodriguez-Cid ◽  
...  

Background: Brigatinib has demonstrated its efficacy as first-line therapy and in further lines for ALK-positive non-small cell lung cancer (NSCLC) patients; however, real-world data in Latin America are scarce. Methods: From January 2018 to March 2020, 46 patients with advanced ALK-positive NSCLC received brigatinib as second or further line of therapy in Mexico and Colombia. The primary endpoint was progression-free survival (PFS); secondary endpoint was time to treatment discontinuation (TTD). Results: At a median follow-up of 9.3 months, the median PFS was 15.2 months (95% CI: 11.6–18.8), and TTD was 18.46 months (95% CI: 9.54–27.38). The estimated overall survival at 12 months was 80%. Safety profile was consistent with previously published data. Conclusion: Brigatinib is an effective treatment for previously treated ALK-positive NSCLC patients in a real-world setting.


2016 ◽  
Vol 23 (6) ◽  
pp. 589 ◽  
Author(s):  
S. Kayaniyil ◽  
M. Hurry ◽  
J. Wilson ◽  
P. Wheatley-Price ◽  
B. Melosky ◽  
...  

Background Crizotinib was the first agent approved for the treatment of anaplastic lymphoma kinase (ALK)– positive (+) non-small-cell lung cancer (nsclc), followed by ceritinib. However, patients eventually progress or develop resistance to crizotinib. With limited real-world data available, the objective of the present work was to evaluate treatment patterns and survival after crizotinib in patients with locally advanced or metastatic ALK+ nsclc in Canada.Methods In this retrospective study at 6 oncology centres across Canada, medical records of patients with locally advanced or metastatic ALK+ nsclc were reviewed. Demographic and clinical characteristics, treatments, and outcomes data were abstracted. Analyses focused on patients who discontinued crizotinib treatment.Results Of the 97 patients included, 9 were crizotinib-naïve, and 39 were still receiving crizotinib at study end. The 49 patients who discontinued crizotinib treatment were included in the analysis. Of those 49 patients, 43% received ceritinib at any time, 20% subsequently received systemic chemotherapy only (but never ceritinib), and 37% received no further treatment or died before receiving additional treatment. Median overall survival from crizotinib discontinuation was shorter in patients who did not receive ceritinib than in those who received ceritinib (1.7 months vs. 20.4 months, p < 0.001). In a multivariable analysis, factors associated with poorer survival included lack of additional therapies (particularly ceritinib), male sex, and younger age, but not smoking status; patients of Asian ethnicity showed a nonsignificant trend toward improved survival.Conclusions A substantial proportion of patients with ALK+ nsclc received no further treatment or died before receiving additional treatment after crizotinib. Treatment with systemic agents was associated with improved survival, with ceritinib use being associated with the longest survival. 


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