11 research outputs found
Empirical comparison of structural credit risk models for Bankruptcy Prediction of Financial Institutions in US.
In this paper, we compare and analyse the expected default probabilities (EDPs) derived from the six structural models: Merton model, Leland and Toft model, Longstaff and Schwartz model, Briys de Varenne model and the recent Ericsson and Reneby model. In our comparison, we cover the aspects of EDP ranking, average EDP differences, relationship of EDP with key financial ratios and relative predictive power of each model compared with the other models. We found that Merton model tends to overestimate the default probabilities of the 532 non-bankrupt financial institutions used in our study. Its average EDP is found to be at least 16.3% higher than the other models. Also, it is discovered that financial ratios do have a strong explanatory power for the EDPs calculated by the various models. Furthermore, our analysis cover
Real-world efficacy of low dose osimertinib as second-line treatment in patients with epidermal growth factor receptor-mutated advanced non-small cell lung cancer
Background: Response rates of epidermal growth factor receptor (EGFR)-mutated advanced non-small
cell lung cancer (NSCLC) to lower doses of osimertinib [20 mg once daily (OD) and 40 mg OD] are similar
to those of the recommended dose of 80 mg OD, but there is a lack of real-world evidence on the effect of
the lower doses of osimertinib on survival outcomes. We conducted this study to assess the efficacy and safety
of lower osimertinib doses for patients with EGFR-mutated advanced NSCLC whose disease had progressed
on earlier generation EGFR tyrosine kinase inhibitors (TKIs) in a real-world clinical practice.
Methods: This multicenter, retrospective study included patients with EGFR-mutated advanced NSCLC
treated with low doses of osimertinib after failing first- or second-generation EGFR TKIs due to acquired
T790M mutation. Data on demographics, staging, treatment history, best overall response rate (ORR) based
on RECIST 1.1, and adverse events (AEs) were collected from the patients’ case notes. Descriptive data
were described in percentages and medians. Progression-free survival (PFS) and overall survival (OS) were
calculated using the Kaplan-Meier method.
Results: Of the 22 patients studied [males =8 and females =14; Eastern Cooperative Oncology Group
(ECOG) 1 or 2 =7 and ECOG 3 or 4 =15], 45.5% were on 40 mg OD, 31.8% were on 80 mg every other
day (EOD), and 22.7% on 40 mg EOD. First-line EGFR TKIs used included afatinib, erlotinib, and
gefitinib. The ORR with lower doses of second-line osimertinib was 77.3%. Overall, the median PFS was
10.0 months [95% confidence interval (CI): 8.6–11.4] and median OS was 13.0 months (95% CI: 9.4–16.6).
In patients with ECOG 1 or 2, the median PFS was 18.0 months (95% CI: 5.8–30.2) and the median OS was
not reached at the time of analysis. In patients with poor ECOG performance status of 3 and 4, good survival
outcomes were also seen with a median PFS of 7.0 months (95% CI: 4.7–9.3) and median OS of 10.0 months
(95% CI: 7.5–12.5). All AEs except one case of paronychia were Grade 1. There were no Grade 3 or 4 AEs.
Conclusions: Treatment with low dose osimertinib demonstrated good efficacy and tolerability in EGFR-
mutated advanced NSCLC patients who failed first-line treatment with first- or second-generation EGFR
TKIs due to T790M mutation
COVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore A Nationwide Cohort Study
10.1001/jamaoncol.2023.2271JAMA ONCOLOGY9
Real-world treatment and outcomes of ALK-positive metastatic non–small cell lung cancer in a southeast Asian country
Purpose: Anaplastic lymphoma kinase (ALK) inhibitors are associated with good overall survival (OS) for ALK-positive metastatic
non–small cell lung cancer (NSCLC). However, these treatments can be unavailable or limited by financial constraints in developing
countries. Using data from a nationwide lung cancer registry, the present study aimed to identify treatment patterns and clinical
outcomes of ALK-positive NSCLC in Malaysia.
Methods: This retrospective study examined data of patients with ALK-positive NSCLC from 18 major hospitals (public, private, or
university teaching hospitals) throughout Malaysia between January 1, 2015 and December 31, 2020 from the National Cardiovascular
and Thoracic Surgical Database (NCTSD). Data on baseline characteristics, treatments, radiological findings, and pathological findings
were collected. Overall survival (OS) and time on treatment (TOT) were calculated using the Kaplan–Meier method.
Results: There were 1581 NSCLC patients in the NCTSD. Based on ALK gene-rearrangement test results, only 65 patients (4.1%) had
ALK-positive advanced NSCLC. Of these 65 patients, 59 received standard-of-care treatment and were included in the analysis.
Crizotinib was the most commonly prescribed ALK inhibitor, followed by alectinib and ceritinib. Patients on ALK inhibitors had
better median OS (62 months for first-generation inhibitors, not reached at time of analysis for second-generation inhibitors) compared
to chemotherapy (27 months), but this was not statistically significant (P=0.835) due to sample-size limitations. Patients who received
ALK inhibitors as first-line therapy had significantly longer TOT (median of 11 months for first-generation inhibitors, not reached
for second-generation inhibitors at the time of analysis) compared to chemotherapy (median of 2 months; P<0.01).
Conclusion: Patients on ALK inhibitors had longer median OS and significantly longer TOT compared to chemotherapy, suggesting
long-term benefit.
Keywords: ALK inhibitors, chemotherapy, ALK-positive, NSCL
Outcomes of patients with EGFR-mutant advanced NSCLC in a developing country in Southeast Asia
Background: Although first- and second-generation EGFR TKIs are considered first-line treatment in EGFRm+ NSCLC, most patients
develop resistance and progress, commonly, EGFR T790M mutation. The third-generation EGFR-TKI has demonstrated efficacy in
patients with progressive disease harboring the T790M mutation and in the first-line setting, bypassing this mode of resistance. The primary
objectives of this study are to describe the proportion of EGFRm+ NSCLC patients treated with first-, second- and third-generation EGFR
TKIs, and cytotoxic chemotherapy in the first-line setting, and the time on treatment for each category. Secondary objectives are to
determine the dropout rate, the rates for T790M mutation testing at disease progression and the type of subsequent treatment.
Methods: This multicenter retrospective study utilized data from the Malaysian Lung Cancer Registry that actively registers all lung
cancer patients ≥18 years, with primary lung cancer confirmed histologically or cytologically. All patients diagnosed with advanced
stages (ie stages IIIB, IIIC and IV) EGFRm+ NSCLC from 1st of January 2015 to 31st December 2019 were included.
Results: Of 406 patients with EGFRm+ NCSLC, 351 were treated. Types of first-line treatment were as follows: EGFR-TKIs (first
generation – 54.1%, second generation – 25.6% and third-generation – 12.5%) and chemotherapy (7.7%). The median time of
treatment for each generation of EGFR-TKI was 12 months, 12 months and 24 months, and 2 months for chemotherapy. The dropout
rate was 28.7% (n = 101). Nearly half (49.4%) of patients who were on first- or second-generation EGFR-TKI had further genetic
testing via liquid or tissue biopsies upon disease progression. About 24.9% of those who developed disease progression after firstor second-generation EGFR TKI were started on a third-generation EGFR TKI.
Conclusion: In the real-world, the management of EGFRm+ advanced NSCLC patients in an Asian cost-restrictive setting may
adversely affect the choice of first-line therapy, time on each line of treatment and subsequently the overall survival of patients.
Keywords: tyrosine kinase inhibitors, lung cancer, time on treatment, overall surviva
Modulated TRPC1 expression predicts sensitivity of breast cancer to doxorubicin and magnetic field therapy: segue towards a precision medicine approach
10.1101/2021.04.30.44208
Global haemostatic tests demonstrate the absence of parameters of hypercoagulability in non-hypoxic mild COVID-19 patients: a prospective matched study
10.1007/s11239-021-02575-4JOURNAL OF THROMBOSIS AND THROMBOLYSI
X Chromosome Contribution to the Genetic Architecture of Primary Biliary Cholangitis.
BACKGROUND & AIMS: Genome-wide association studies in primary biliary cholangitis (PBC) have failed to find X chromosome (chrX) variants associated with the disease. Here, we specifically explore the chrX contribution to PBC, a sexually dimorphic complex autoimmune disease. METHODS: We performed a chrX-wide association study, including genotype data from 5 genome-wide association studies (from Italy, United Kingdom, Canada, China, and Japan; 5244 case patients and 11,875 control individuals). RESULTS: Single-marker association analyses found approximately 100 loci displaying P < 5 × 10(-4), with the most significant being a signal within the OTUD5 gene (rs3027490; P = 4.80 × 10(-6); odds ratio [OR], 1.39; 95% confidence interval [CI], 1.028-1.88; Japanese cohort). Although the transethnic meta-analysis evidenced only a suggestive signal (rs2239452, mapping within the PIM2 gene; OR, 1.17; 95% CI, 1.09-1.26; P = 9.93 × 10(-8)), the population-specific meta-analysis showed a genome-wide significant locus in East Asian individuals pointing to the same region (rs7059064, mapping within the GRIPAP1 gene; P = 6.2 × 10(-9); OR, 1.33; 95% CI, 1.21-1.46). Indeed, rs7059064 tags a unique linkage disequilibrium block including 7 genes: TIMM17B, PQBP1, PIM2, SLC35A2, OTUD5, KCND1, and GRIPAP1, as well as a superenhancer (GH0XJ048933 within OTUD5) targeting all these genes. GH0XJ048933 is also predicted to target FOXP3, the main T-regulatory cell lineage specification factor. Consistently, OTUD5 and FOXP3 RNA levels were up-regulated in PBC case patients (1.75- and 1.64-fold, respectively). CONCLUSIONS: This work represents the first comprehensive study, to our knowledge, of the chrX contribution to the genetics of an autoimmune liver disease and shows a novel PBC-related genome-wide significant locus.The article is available via Open Access. Click on the 'Additional link' above to access the full-text.Published version, accepted versio