Search

Abstract The high prevalence of insomnia in cancer patients leads to a significant reduction in the quality of life of those affected. A detailed record of symptoms therefore plays an essential role for further course of treatment. Which screening instruments enable identification of cancer patients with insomnia is the subject of this single-arm nonrandomized study. During the data collection period, cancer patients meeting the following criteria: self-reported tiredness and/or trouble falling or staying asleep or sleeping too much in an electronic patient-reported outcome measurement were enrolled. For further analysis, focus was placed on the Patient Health Questionnaire Depression Scale (PHQ-8), the Minimal Documentation System (MIDOS2) and the Insomnia Severity Index (ISI). Frequency, correlation, and variance analyses were conducted to identify likely predictors of insomnia. Our findings indicate a closer correlation between the screening question pertaining to sleep disorders and the ISI, compared to the question on tiredness and the ISI. The initial recording of sleep-related parameters plays an essential role for cancer patients in order to identify and treat modifiable factors as promptly as possible. For an initial assessment, we recommend asking about trouble falling or staying asleep or sleeping too much.

Abstract Background Knowing the number of undetected cases of COVID-19 is important for a better understanding of the spread of the disease. This study analyses the temporal dynamic of detected vs. undetected cases to provide guidance for the interpretation of prevalence studies performed with PCR or antibody tests to estimate the detection rate. Methods We used an agent-based model to evaluate assumptions on the detection probability ranging from 0.1 to 0.9. For each general detection probability, we derived age-dependent detection probabilities and calibrated the model to reproduce the epidemic wave of COVID-19 in Austria from March 2020 to June 2020. We categorized infected individuals into presymptomatic, symptomatic unconfirmed, confirmed and never detected to observe the simulated dynamic of the detected and undetected cases. Results The calculation of the age-dependent detection probability ruled values lower than 0.4 as most likely. Furthermore, the proportion of undetected cases depends strongly on the dynamic of the epidemic wave: during the initial upswing, the undetected cases account for a major part of all infected individuals, whereas their share decreases around the peak of the confirmed cases. Conclusions The results of prevalence studies performed to determine the detection rate of COVID-19 patients should always be interpreted with regard to the current dynamic of the epidemic wave. Applying the method proposed in our analysis, the prevalence study performed in Austria in April 2020 could indicate a detection rate of 0.13, instead of the prevalent ratio of 0.29 between detected and estimated undetected cases at that time.

The incidence of cervical squamous cell carcinoma (SCC)-CUP is increasing, with a significant proportion being HPV-associated. In this 10-year retrospective study, we analyzed clinical and therapeutic parameters of patients with cervical SCC-CUP. Primary tumor detection rates in patients with initial SCC-CUP (SCC-CUP init ) were assessed and mean overall survival and disease-free survival of patients without primary tumor detection after an extended diagnostic workup, i.e. definitive SCC-CUP (SCC-CUP def ), were analyzed taking p16-status into account to derive therapeutic recommendations.85% (n=131/155) of patients with CUP init , presented with SCC followed by adenocarcinoma metastases in 7% (n=10/155). In 41% (n=54/131) of patients with SCC-CUP init , a primary tumor was identified after an extended diagnostic workup; the primary tumor detection rate was significantly higher in p16-positive compared to p16-negative cases (63% vs. 23%, p<0,001). PET imaging specificity was 73% for both sensitivity and specificity. SCC-CUP def were primarily treated surgically with adjuvant radio(chemo)therapy. SCC-CUP def patients with positive vs. negative p16-status had significantly longer overall survival (53 vs. 41 Monate, p=0,037), as well as patients with cN1- vs. cN3-status and M0- vs. M1-status.p16-status influences diagnosis and therapy response in patients with SCC-CUP: in p16-positive SCC-CUP init , primary tumor detection rates were significantly higher than in p16-negative SCC-CUP init . In patients with SCC-CUP def , p16-positivity was associated with improved overall survival, albeit to an extent which does not justify therapy de-escalation., Competing Interests: Die Autorinnen/Autoren geben an, dass kein Interessenkonflikt besteht., (Thieme. All rights reserved.)

Pancreatic ductal adenocarcinoma (PDAC) comprises two clinically relevant molecular subtypes that are currently determined using tissue biopsies, which are spatially biased and highly invasive. We used whole transcriptome sequencing of 10 plasma samples with tumor-informed subtypes, complemented by proteomic analysis for minimally invasive identification of PDAC subtype markers. Data were validated in independent large cohorts and correlated with treatment response and patient outcome. Differential transcript abundance analyses revealed 32 subtype-specific, protein-coding cell-free RNA (cfRNA) transcripts. The subtype specificity of these transcripts was validated in two independent tissue cohorts comprising 195 and 250 cases, respectively. Three disease-relevant cfRNA-defined subtype markers (DEGS1, KDELC1, and RPL23AP7) that consistently associated with basal-like tumors across all cohorts were identified. In both tumor and liquid biopsies, the overexpression of these markers correlated with poor survival. Moreover, elevated levels of the identified markers were linked to a poor response to systemic therapy and early relapse in resected patients. Our data indicate clinical applicability of cfRNA markers in determining tumor subtypes and monitoring disease recurrence., (© 2024 The Author(s). Molecular Oncology published by John Wiley & Sons Ltd on behalf of Federation of European Biochemical Societies.)

Purpose: Cancer of unknown primary (CUP) is a heterogeneous entity with limited overall survival (OS) in most patients. Prognostic biomarkers are needed, particularly for treatment stratification. We investigated the impact of programmed death-ligand 1 (PD-L1) expression as prognostic marker in immunotherapy-naïve CUP patients., Methods: Clinical data from patients with confirmed CUP diagnosis according to ESMO guidelines, treated at the West German Cancer Center, Essen from 2015 to 2021, were analyzed. Patients treated with checkpoint inhibitors were excluded. PD-L1 expression was assessed in tumor tissues following established guidelines., Results: Of a cohort of 132 patients, 62 patients, including 30 patients with prognostically unfavorable CUP, met inclusion criteria and were evaluable for PD-L1 expression. Comparing PD-L1 Tumor Proportional Score (TPS) and Combined Positive Score (CPS) revealed almost complete concordance (96.2 %). Patients with PD-L1-positive CUP (TPS ≥1 %; n = 36; 58 %) had superior overall survival (median not reached) as compared to patients with PD-L1-negative CUP (median 14 months, 95 %CI 10.0-18.0; HR 0.3, p < 0.001). The benefit of PD-L1 positivity (n = 12; 40 %) was maintained in the unfavorable CUP subgroup (median 20 months, 95 %CI 3.0-37.0 versus 10 months, 95 %CI 3.1-16.9; HR 0.4, p = 0.032). In PD-L1-positive CUP there was a positive correlation between the level of PD-L1 expression and survival (TPS ≥50 %: median survival not reached, HR 0.1; TPS 1 to 49 %: OS: 77 months, HR 0.4)., Conclusion: PD-L1 expression associates with favorable survival in checkpoint inhibitor-naïve CUP patients. This implies a role of cancer immunity in CUP biology and may nominate PD-L1 for patient stratification in further studies and clinical care., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Targeted therapy with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) has established the precision oncology paradigm in lung cancer. Most patients with EGFR -mutated lung cancer respond but eventually acquire resistance. Methods: Patients exhibiting the EGFR p.T790M resistance biomarker benefit from sequenced targeted therapy with osimertinib. We hypothesized that metabolic response as detected by 18 F-FDG PET after short-course osimertinib identifies additional patients susceptible to sequenced therapy. Results: Fourteen patients with EGFR -mutated lung cancer and resistance to first- or second-generation EGFR TKI testing negatively for EGFR p.T790M were enrolled in a phase II study. Five patients (36%) achieved a metabolic 18 F-FDG PET response and continued osimertinib. In those, the median duration of treatment was not reached (95% CI, 24 mo to not estimable), median progression-free survival was 18.7 mo (95% CI, 14.6 mo to not estimable), and median overall survival was 41.5 mo. Conclusion: Connecting theranostic osimertinib treatment with early metabolic response assessment by PET enables early identification of patients with unknown mechanisms of TKI resistance who derive dramatic clinical benefit from sequenced osimertinib. This defines a novel paradigm for personalization of targeted therapies in patients with lung cancer dependent on a tractable driver oncogene., (© 2024 by the Society of Nuclear Medicine and Molecular Imaging.)

Objective: Gastric carcinoma (GC) is the fifth most commonly diagnosed cancer and the third leading cause of cancer-related deaths globally. The tumor microenvironment plays a significant role in the pathogenesis, prognosis, and response to immunotherapy. However, the immune-related molecular mechanisms underlying GC remain elusive. Bioinformatics analysis of the gene expression of GC and paracancerous healthy tissues from the same patient was performed to identify the key genes and signaling pathways, as well as their correlation to the infiltration of the tumor microenvironment (TME) by various immune cells related to GC development., Methods: We employed GSE19826, a gene expression profile from the Gene Expression Omnibus (GEO), for our analysis. Functional enrichment analysis of Differentially Expressed Genes (DEGs) was conducted using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes database., Results: Cytoscape software facilitated the identification of nine hub DEGs, namely, FN1 , COL1A1 , COL1A2 , THBS2 , COL3A1 , COL5A1 , APOE , SPP1 , and BGN. Various network analysis algorithms were applied to determine their high connectivity. Among these hub genes, FN1 , COL1A2 , THBS2 , COL3A1 , COL5A1 , and BGN were found to be associated with a poor prognosis for GC patients. Subsequent analysis using the TIMER database revealed the infiltration status of the TME concerning the overexpression of these six genes. Specifically, the abovementioned genes demonstrated direct correlations with cancer-associated fibroblasts, M1 and M2 macrophages, myeloid-derived suppressor cells, and activated dendritic cells., Conclusion: Our findings suggest that the identified hub genes, particularly BGN , FN1 , COL1A2 , THBS2 , COL3A1 , and COL5A1 , play crucial roles in GC prognosis and TME cell infiltration. This comprehensive analysis enhances our understanding of the molecular mechanisms underlying GC development and may contribute to the identification of potential therapeutic targets and prognostic markers for GC patients.

Purpose: Current guidelines recommend combination chemotherapy for treatment of patients with unfavorable cancer of unknown primary (CUP). Biomarker-guided targeted therapies may offer additional benefit. Data on the feasibility and effectiveness of comprehensive genomic biomarker profiling of CUP in a standard clinical practice setting are limited., Methods: This analysis included 156 patients with confirmed unfavorable CUP diagnosis according to ESMO guidelines, who were treated at the West German Cancer Center, Essen, Germany, from 2015 to 2021. Clinical parameters and outcome data were retrieved from the electronic hospital information system. Genomic biomarker analyses were performed in formalin-fixed paraffin-embedded tumor tissue whenever possible using the QIAseq Multimodal-Pancancer-Panel., Results: Non-squamous histologies, high tumor burden, and age above 60 years associated with poor survival outcome. Tissue availability restricted comprehensive biomarker analyses to 50 patients (32%), reflecting a major limitation in the real-world setting. In those patients a total of 24 potentially actionable alterations were identified in 17 patients (34% of profiled patients, 11% of total population). The most prevalent biomarkers were high tumor mutational burden and BRCA-mutations., Conclusion: In a real-world setting precision medicine for patients with CUP is severely restricted by tissue availability, and a limited spectrum of actionable alterations. Progress for patients may require emphasizing the need for sufficient biopsies, and prospective exploration of blood-based biomarker profiling., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:, (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Purpose: Patients with BRAF V600E -mutant metastatic colorectal cancer (mCRC) have a dismal prognosis. The best strategies in these patients remain elusive. Against this background, we report the clinical course of patients with BRAF V600E -mutant mCRC to retrieve the best treatment strategy., Patients and Methods: Clinico-pathological data were extracted from the electronic health records. Kaplan-Meier method was used to estimate overall (OS) and progression-free survival (PFS). Objective response rate (ORR) was assessed according to RECIST 1.1., Results: In total, 51 patients were enrolled. FOLFOXIRI was administered to 12 patients; 29 patients received FOLFOX or FOLFIRI as first-line treatment. Median OS was 17.6 months. Median PFS with FOLFOXIRI (13.0 months) was significantly prolonged (HR 0.325) as compared to FOLFOX/FOLFIRI (4.3 months). However, this failed to translate into an OS benefit (p = 0.433). Interestingly, addition of a monoclonal antibody to chemotherapy associated with superior OS (HR 0.523). A total of 64.7% patients received further-line therapy, which included a BRAF inhibitor in 17 patients. Targeted therapy associated with very favourable OS (25.1 months)., Conclusion: Patients with BRAF V600E -mutated mCRC benefit from the addition of an antibody to first-line chemotherapy. Further-line treatment including a BRAF inhibitor has a dramatic impact on survival., (© 2023. The Author(s).)

Purpose: EGFR tyrosine kinase inhibitor (TKI) therapy in EGFR-mutated lung cancer is limited by acquired resistance. In half of the patients treated with first/second-generation (1st/2nd gen) TKI, resistance is associated with EGFR p.T790M mutation. Sequential treatment with osimertinib is highly active in such patients. Currently, there is no approved targeted second-line option for patients receiving first-line osimertinib, which thus may not be the best choice for all patients. The present study aimed to evaluate the feasibility and efficacy of a sequential TKI treatment with 1st/2nd gen TKI, followed by osimertinib in a real-world setting., Methods: Patients with EGFR-mutated lung cancer treated at two major comprehensive cancer centers were retrospectively analyzed by the Kaplan-Meier method and log rank test., Results: A cohort of 150 patients, of which 133 received first-line treatment with a first/second gen EGFR TKI, and 17 received first-line osimertinib, was included. Median age was 63.9 years, 55% had ECOG performance score of ≥ 1. First-line osimertinib was associated with prolonged progression-free survival (P = 0.038). Since the approval of osimertinib (February 2016), 91 patients were under treatment with a 1st/2nd gen TKI. Median overall survival (OS) of this cohort was 39.3 months. At data cutoff, 87% had progressed. Of those, 92% underwent new biomarker analyses, revealing EGFR p.T790M in 51%. Overall, 91% of progressing patients received second-line therapy, which was osimertinib in 46%. Median OS with sequenced osimertinib was 50 months. Median OS of patients with p.T790M-negative progression was 23.4 months., Conclusion: Real-world survival outcomes of patients with EGFR-mutated lung cancer may be superior with a sequenced TKI strategy. Predictors of p.T790M-associated resistance are needed to personalize first-line treatment decisions., (© 2023. The Author(s).)

Cancer of unknown primary (CUP) is a heterogeneous entity with a limited prognosis. Novel prognostic markers are needed for patient stratification in prospective clinical trials exploring innovative therapies. Methods: In CUP patients treated at the West German Cancer Center Essen, the prognostic value of 18 F-FDG PET/CT at the initial diagnostic workup was analyzed by comparing overall survival (OS) in patients who underwent 18 F-FDG PET/CT with those who did not. Results: Of 154 patients with a CUP diagnosis, 76 underwent 18 F-FDG PET/CT at the initial diagnostic workup. The median overall survival (OS) of the full analysis set was 20.0 mo. Within the PET/CT subgroup, an SUV max above 20 was associated with significantly superior OS (median OS, not reached vs. 32.0 mo; hazard ratio, 0.261; 95% CI, 0.095-0.713; P = 0.009). Conclusion: Our retrospective work shows that an SUV max above 20 on 18 F-FDG PET/CT at the initial diagnostic workup is a favorable prognostic factor in patients with CUP. This finding deserves further prospective studies for validation., (© 2023 by the Society of Nuclear Medicine and Molecular Imaging.)

Purpose: Systemic-inflammatory response parameters (SIR) are known prognostic markers in different tumour entities, but have not been evaluated in patients with iCCA treated with systemic chemotherapy. Therefore, we evaluated the impact of different SIR markers on the clinical course of patients with advanced iCCA treated at our center., Methods: SIR markers were retrospectively evaluated in 219 patients with iCCA at the West-German-Cancer-Center Essen from 2014 to 2019. Markers included neutrophil/lymphocyte ratio (NLR), lymphocyte/monocyte ratio (LMR), CRP, and the modified Glasgow-Prognostic-Score (mGPS), which were correlated with clinico-pathological findings, response to chemotherapy (ORR), progression-free (PFS) and overall survival (OS) using Kaplan-Meier analyses, and Cox proportional models., Results: Median overall survival (OS) of the entire cohort was 14.8 months (95% CI 11.2-24.4). Median disease-free survival (DFS) in 81 patients undergoing resection was 12.3 months (95% CI 9.7-23.1). The median OS from start of palliative CTX (OS pall ) was 10.9 months (95% 9.4-14.6). A combined Systemic Inflammatory Score (SIS) comprising all evaluated SIR markers correlated significantly with ORR, PFS, and OS pall . Patients with a high SIS (≥ 2) vs. SIS 0 had a significantly inferior OS pall (HR 8.7 95% CI 3.71-20.38, p < 0.001). Multivariate analysis including known prognostic markers (ECOG, CA19-9, LDH, and N- and M-status) identified the SIS as an independent prognostic factor., Conclusions: Inflammatory markers associate with inferior survival outcomes in patients with iCCA. A simple SIS may guide treatment decisions in patients treated with systemic chemotherapy., (© 2022. The Author(s).)

Introduction: Understanding prognosis, especially long-term outcome, in advanced nonsmall cell lung cancer (NSCLC) is crucial to inform patients, guide treatment and plan supportive and palliative care., Methods: Prognostic factors influencing overall survival (OS) and progression-free survival (PFS) in 2082 patients with wild-type (WT)-NSCLC (629 M1a, 249 M1b, 1204 M1c) are reported. Patients were included in the prospective German CRISP registry recruiting in >150 centres. Analysis for pre-therapeutic factors was based on results from Cox proportional hazard models., Results: Current M-descriptors of the Union for International Cancer Control-8 staging system were validated: M1a and M1b patients had significantly longer median time to events compared to M1c (OS/PFS 16.4/7.2 months, 17.8/6.7 months and 10.9/5.4 months, respectively). OS and PFS were influenced by number and location of metastatic organ systems. M1c and four or more metastatic organs involved had shorter OS and PFS than M1c with one to three organs (OS hazard ratio (HR) 1.69, p<0.001; PFS HR 1.81, p<0.001). M1b-liver metastases had shorter OS/PFS than M1b involving other organs (OS HR 2.70, p=0.006; PFS HR 2.48, p=0.007). Based on number of involved organs (orgsys) and liver metastases, two risk groups (low-risk: M1a, M1b-non-liver, M1c-1-3-orgsys-non-liver; high-risk: M1c-liver, M1b-liver, M1c-4+-orgsys) with significantly different prognoses could be amalgamated (median OS/PFS 14.3/6.5 months and 7.7/4.1 months, respectively). Other favourable factors were female gender and Eastern Cooperative Oncology Group stage 0, with age showing no impact. Those with T1- or N0-status were associated with longer OS than T2-4 or N2-3., Conclusion: In this large observational dataset, we further defined factors for outcome in WT-NSCLC, including increased number of involved metastatic organ systems and liver metastases, as those with overall poorer prognosis and reduced survival chance., Competing Interests: M. Metzenmacher has received honoraria for advisory boards from AstraZeneca, BMS, Boehringer Ingelheim, MSD, Novartis, Pfizer, Roche, Sanofi Aventis and Takeda. F. Griesinger has received research funding (paid to institution) from AstraZeneca, Boehringer Ingelheim, BMS, Celgene, Lilly, MSD, Novartis, Pfizer, Roche, Takeda and Siemens, honoraria for educational lectures from AstraZeneca, Boehringer Ingelheim, BMS, Celgene, Lilly, MSD, Novartis, Pfizer, Roche, Takeda, Ariad, Abbvie, Sanofi Genzyme, Siemens, Tesaro/GSK and Amgen, honoraria for advisory boards from Abbvie, AstraZeneca, Boehringer Ingelheim, BMS, Celgene, Lilly, MSD, Novartis, Pfizer, Roche, Sanofi Genzyme, Takeda and Aria, travel support from Roche, MSD, Merck, Takeda, Boehringer Ingelheim, Abbvie, Sanofi Genzyme, BMS and AstraZeneca, and has leadership roles at Ethikkommission, Forschungskommission, Fakultätsrat University of Internal Medicine of Oldenburg. H-D. Hummel has received travel, accommodation, or other expenses from Johnson & Johnson, Boehringer Ingelheim, Bristol-Myers Squibb and Amgen. C. Elender declares that there is no conflict of interest. H. Schäfer has received honoraria for advisory boards from Boehringer Ingelheim, BMS, Pfizer and Roche. M. de Wit reports grants from AstraZeneca, Abbvie and Novartis (paid to institution), has received honoraria for lectures and writing from AstraZeneca, support for meetings and travel from AstraZeneca and Abbvie, and has a leadership position as member of the steering committee in the German Society for Hematology and Oncology (“Deutsche Gesellschaft für Hämatologie und Onkologie”; DGHO). U. Kaiser declares that there is no conflict of interest. J. Kern has received honoraria for scientific meetings from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Lilly, MSD, Novartis, Pfizer, Roche and Takeda, advisory board honoraria from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Lilly, MSD, Novartis, Pfizer, Roche and Takeda, travel support from AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Lilly, MSD, Novartis, Pfizer and Roche. M. Jänicke declares that there is no conflict of interest. L. Spring declares that there is no conflict of interest. S. Zacharias declares that there is no conflict of interest. A. Kaiser-Osterhues declares that there is no conflict of interest. A. Groth has received research funding (paid to the employer AIO-Studien-gGmbH) from Amgen, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Janssen-Cilag, Lilly, MSD Sharp & Dohme, Novartis, Pfizer, Roche and Takeda. A. Hipper has received research funding (paid to the employer AIO-Studien-gGmbH) from Amgen, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Janssen-Cilag, Lilly, MSD Sharp & Dohme, Novartis, Pfizer, Roche and Takeda. G. Zaun declares that there is no conflict of interest. S. Dörfel declares that there is no conflict of interest. B. Güldenzoph has received advisory board honoraria from MSD Oncology, Roche Pharma AG, Amgen and AstraZeneca, and support for travel from Amgen. L. Müller declares that there is no conflict of interest. J. Uhlig has received honoraria for advisory boards and workshops from: Roche, Amgen, Servier, MSD, Bristol-Myers Squibb, Sanofi, Merck, Celgene, Novartis, Janssen-Cilag, Boehringer Ingelheim, Bayer and Biogene. M. Thomas has received honoraria for scientific meetings from AbbVie, AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Chugai, Lilly, MSD, Novartis, Pfizer, Roche and Takeda, advisory board honoraria from AbbVie, Amgen, AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Chugai Pharma, Janssen Oncology, Lilly, MSD, Novartis, Pfizer, Roche and Takeda, travel support from AbbVie, Amgen, AstraZeneca, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Chugai, Janssen Oncology, Lilly, MSD, Novartis, Pfizer, Roche and Takeda, research funding (paid to institution) from AstraZeneca, Bristol-Myers Squibb, Roche and Takeda. M. Sebastian has received research funding (paid to institution) from AstraZeneca, honoraria for advisory boards from AstraZeneca, BMS, MSD/Merck, Roche, Pfizer, Novartis, Boehringer Ingelheim, Takeda, Abbvie, Johnson & Johnson, Amgen, Tesaro and Eli Lilly, honoraria for educational lectures from AstraZeneca, BMS, Novartis, Pfizer, Boehringer Ingelheim, Roche, Lilly, Pfizer, Takeda, Sanofi, GSK, Amgen, MSD, Janssen-Cilag and Eli Lilly, travel support from BMS and Pfizer, patents from CureVax, BioTech, AstraZeneca, Boehringer Ingelheim, Novartis, BMS, Roche, Lilly, Pfizer, Takeda, Sanofi, GSK, Amgen, MSD and Janssen-Cilag. W.E.E. Eberhardt has received honoraria from AstraZeneca, Roche Pharma AG, Bristol Myers Squibb, MSD Oncology, Boehringer Ingelheim, Lilly, Takeda, Pfizer, Amgen, Novartis, Roche, Sanofi Aventis and Abbvie, consulting or advisory role for AstraZeneca, Roche, Bristol Myers Squibb, MSD Oncology, Bayer Health, Lilly, Boehringer Ingelheim, Takeda, Pfizer, MSD/Merck, Novartis, Takeda, Sanofi Aventis, Abbvie, Amgen, Bayer and Janssen-Cilag, research funding from AstraZeneca, Lilly and Bristol Myers Squibb, and is a member of the IASLC Staging Committee, M-track., (Copyright ©The authors 2023.)

Introduction: Systemic therapy is firmly established in patients with advanced or metastatic pancreatic ductal adenocarcinoma (PDAC). Clinical efficacy is still modest and options are limited. Combination therapy protocols such as FOLFIRINOX and gemcitabine/nab-paclitaxel (Gem/NP) define standard-of-care. Patients may receive a sequence of both regimens as first- and second-line palliative treatment. However, there is no guidance regarding a preferred order., Methods: This is a retrospective analysis of clinical characteristics, treatment trajectories, and outcomes of patients with advanced PDAC treated at the West German Cancer Center Essen from 2014 to 2020 to inform treatment decisions with respect to predictive factors, impact of chemotherapy regimen sequence, and maintenance treatment., Results: We identified 170 patients with available follow-up. Of those, 160 (94.1%) patients received palliative CTX for primary metastatic, locally advanced, or recurrent PDAC. Median progression-free survival (PFS) upon first palliative chemotherapy was 4.1 (3.1-5.9) months. First-line FOLFIRINOX was associated with superior PFS (median 6.3 months) and OS (9.7 months, HR 0.7, p = 0.03) as compared to Gem/NP or other regimens (PFS 3.0, OS 6.9 months). However, OS benefit of first-line FOLFIRINOX was lost in patients who received at least two treatment lines (median OS 12.1 vs. 13.1 months, p = 0.43). A landmark analysis of patients with clinical benefit (defined as CR/PR/SD for at least 20 weeks) upon first-line therapy revealed improved OS (HR 0.53, p = 0.02) for patients receiving continued deescalated maintenance therapy. Second-line regimens resulted in similar PFS (overall log-rank p = 0.92, median PFS upon second-line therapy 2.3 [1.8-2.9], per-regimen median between 1.8 and 3.9 months). A previously established systemic inflammation score proved to be strongly prognostic and allowed identification of a patient subgroup with dismal prognosis (OS 2.9 vs. 11.4 months, HR 5.23, p < 0.001), independent of other prognostic factors and with no relevant interaction with the choice of first-line regimen., Conclusion: In this real-world population of PDAC patients treated with contemporary combination chemotherapies, a positive impact of first-line FOLFIRINOX was only observed when no second or further line treatment was administered. Intensity-reduced maintenance therapy may lead to superior survival., (© 2023 S. Karger AG, Basel.)

Objective: Current predictive biomarkers for PD-1 (programmed cell death protein 1)/PD-L1 (programmed death-ligand 1)-directed immunotherapy in non-small cell lung cancer (NSCLC) mostly focus on features of tumour cells. However, the tumour microenvironment and immune context are expected to play major roles in governing therapy response. Against this background, we set out to apply context-sensitive feature selection and machine learning approaches on expression profiles of immune-related genes in diagnostic biopsies of patients with stage IV NSCLC., Methods: RNA expression levels were determined using the NanoString nCounter platform in formalin-fixed paraffin-embedded tumour biopsies obtained during the diagnostic workup of stage IV NSCLC from two thoracic oncology centres. A 770-gene panel covering immune-related genes and control genes was used. We applied supervised machine learning methods for feature selection and generation of predictive models., Results: Feature selection and model creation were based on a training cohort of 55 patients with recurrent NSCLC treated with PD-1/PD-L1 antibody therapy. Resulting models identified patients with superior outcomes to immunotherapy, as validated in two subsequently recruited, separate patient cohorts (n = 67, hazard ratio = 0.46, p = 0.035). The predictive information obtained from these models was orthogonal to PD-L1 expression as per immunohistochemistry: Selecting by PD-L1 positivity at immunohistochemistry plus model prediction identified patients with highly favourable outcomes. Independence of PD-L1 positivity and model predictions were confirmed in multivariate analysis. Visualisation of the models revealed the predictive superiority of the entire 7-gene context over any single gene., Conclusion: Using context-sensitive assays and bioinformatics capturing the tumour immune context allows precise prediction of response to PD-1/PD-L1-directed immunotherapy in NSCLC., Competing Interests: Conflict of interest statement M.W. reports honoraria from Boehringer Ingelheim, Novartis, Roche and Takeda and research funding from Bristol Myers Squibb and Takeda. F.M. reports research funding from Bristol Myers Squibb. Henning Reis reports a consulting and advisory role for Bristol Myers Squibb; honoraria from Roche and Bristol Myers Squibb; travel support from Philips, Roche and Bristol Myers Squibb; research funding from Bristol Myers Squibb and share ownership from Bayer. M.G. reports travel support from MSD Sharp & Dohme. J.K. reports a consulting and advisory role without personal honoraria for Roche, Boehringer Ingelheim, Bristol Myers Squibb, MSD and Takeda. T.H. reports honoraria from Bristol Myers Squibb, Chugai, MSD Sharp & Dohme and Roche and a consulting and advisory role for Bristol Myers Squibb and Chugai. M.M. reports honoraria from Roche and Boehringer Ingelheim. W.E.E.E. reports honoraria from Eli Lilly, Boehringer Ingelheim, Pfizer, Novartis, Roche, Merck, Bristol Myers Squibb, Amgen, GlaxoSmithKline, Astellas, Bayer, Teva, Merck Serono, Daiichi Sankyo and Hexal; a consulting or advisory role for Eli Lilly, Boehringer Ingelheim, Novartis, Pfizer, Roche, Merck, Bristol Myers Squibb, Astellas, Bayer, Teva and Daiichi Sankyo and research funding from Eli Lilly (institutional). C.A. reports research funding from Bristol Myers Squibb. K.D. reports a consultancy/advisory role for Boehringer Ingelheim and Novartis and honoraria from Boehringer Ingelheim. M.S. reports consultancy for AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Institut für Qualität und Wirtschaftlichkeit im Gesundheitswesen (IQWiG), Lilly and Novartis; honoraria for CME presentations from Alexion, Boehringer Ingelheim, Celgene, GlaxoSmithKline, Lilly and Novartis; research funding to the institution from Boehringer Ingelheim, Bristol Myers Squibb and Novartis and other support from Universität Duisburg-Essen (patents). All the remaining authors declared no conflicts of interest., (Copyright © 2020 Elsevier Ltd. All rights reserved.)

Background: Deregulated signal transduction pathways play a key role in development, progression and therapeutic resistance of non-small cell lung cancers (NSCLC). The purpose of this study is to assess the downstream markers of two well-characterized pathways and to correlate them with clinical outcome., Design: 670 patients with metastatic NSCLC were prospectively enrolled in a comprehensive biomarker profiling program at a single center from 2012 to 2016. Phosphorylation of extracellular signal-regulated kinase (p-ERK), and protein kinase B (p-AKT) was assessed by standardized immunohistochemistry. Product of scores for quantity and quality of staining were calculated (immunoreactive score, 0-9). Somatic mutations of Kirsten rat sarcoma viral oncogene homolog [KRAS], epithelial growth factor receptor [EGFR], v-Raf murine sarcoma viral oncogene homolog B [BRAF] and phosphatidylinositol 3-kinase [PIK3CA]) were detected by Sanger (2012-03/2015) and amplicon NGS (04/2015-02/2016). Patients enrolled during the first year (2012) were used as discovery cohort. Patients enrolled from 2013 to 02/2016 were used as validation cohort. Clinical data were retrieved from the electronic medical records and were analyzed retrospectively., Results: Using a discovery cohort, we identified an immunoreactive score of p-ERK ≥3 to be prognostically relevant. The validation cohort confirmed that higher levels of p-ERK correlated with worse overall survival (OS) and higher proportion of RAS mutations. Multivariate analysis including established risk factors such EGFR, ALK or ROS mutations and metastatic disease showed a trend of a detrimental effect of high p-ERK on OS (HR 1.23, CI 0.94-1.59, p = 0.131 for p-ERK immunoreactive score ≥3) and time to treatment failure after first-line therapy in the validation cohort. Phosphorylated AKT did not correlate with clinical outcome., Conclusion: While serving as a prognosticator in univariate analysis, highly phosphorylated ERK does not convey a significant prognostic effect for OS in the presence of other prognostic factors. Phosphorylated ERK indicates a higher activity of RAS in advanced NSCLC., (Copyright © 2020 Elsevier B.V. All rights reserved.)

Immune activation within the tumor microenvironment is one promising approach to induce tumor regression. Certain viruses including oncolytic viruses such as the herpes simplex virus (HSV) and non-oncolytic viruses such as the lymphocytic choriomeningitis virus (LCMV) are potent tools to induce tumor-specific immune activation. However, not all tumor types respond to viro- and/or immunotherapy and mechanisms accounting for such differences remain to be defined. In our current investigation, we used the non-cytopathic LCMV in different human melanoma models and found that melanoma cell lines produced high levels of CCL5 in response to immunotherapy. In vivo , robust CCL5 production in LCMV infected Ma-Mel-86a tumor bearing mice led to recruitment of NK cells and fast tumor regression. Lack of NK cells or CCL5 abolished the anti-tumoral effects of immunotherapy. In conclusion, we identified CCL5 and NK cell-mediated cytotoxicity as new factors influencing melanoma regression during virotherapy., (Copyright © 2020 Bhat, Zaun, Hamdan, Lang, Adomati, Schmitz, Friedrich, Bergerhausen, Cham, Li, Ali, Zhou, Khairnar, Duhan, Brandenburg, Machlah, Schiller, Berry, Xu, Vollmer, Häussinger, Thier, Pandyra, Schadendorf, Paschen, Schuler, Lang and Lang.)

Background: Deregulation of signal transduction pathways plays a critical role in oncogenesis of colorectal cancer (CRC) and directly affects sensitivity to targeted therapies. Against this background we developed a comprehensive biomarker profiling program including markers of downstream signaling to study their association with clinical outcomes., Patients and Methods: A prospectively studied cohort of 160 patients with metastatic CRC was included. Standard diagnostic workup included mutational analyses of Kirsten rat sarcoma viral oncogene homolog (KRAS), neuroblastoma RAS viral oncogene homolog (NRAS), and v-Raf murine sarcoma viral oncogene homolog B (BRAF). In addition, markers of mitogen-activated protein kinase (MAPK), phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) and mammalian target of rapamycin pathway activation (phosphorylation of extracellular signal-regulated kinase [ERK], AKT, and p70 ribosomal protein S6 kinase β-1 [p70S6K]) were studied using standardized immunohistochemistry., Results: There was a significant correlation between markers of ERK and AKT activation in the full cohort. In addition, phosphorylation of p70S6K correlated strongly with ERK and AKT phosphorylation and primary tumor localization in the right colon. Subgroup analyses specified these correlations to patients with all-RAS wild type tumors. In contrast, tumors harboring RAS mutations predominantly exhibited ERK phosphorylation. Interestingly, patients with CRC showing high p70S6K phosphorylation (highest quartile) had a significantly inferior overall survival (hazard ratio [HR], 2.4; P = .002) irrespective of RAS mutational status. This effect remained significant in multivariate analysis (P = .002). A patient subgroup characterized by high p70S6K phosphorylation and right-sided primary tumors had a particularly poor prognosis with a dramatically inferior overall survival (HR, 5.2; P < .001). Patients with right-sided primary tumor and low p70S6K phosphorylation had responses to anti-epidermal growth factor receptor antibody-based therapies and overall survival similar to patients with left-sided primary tumors., Conclusion: High phosphorylation of p70S6K is a novel, independent biomarker for poor prognosis, in particular in patients with right-sided primary tumors., (Copyright © 2018 Elsevier Inc. All rights reserved.)

Background: 2-4% of newly diagnosed cases of malignant disease involve cancer of unknown primary (CUP). This mixed entity is one of the 6 most common types of malignant disease in Germany. Highly refined treatment strategies can now be offered to patients with CUP., Methods: This review is based on pertinent publications retrieved by a selective search in PubMed with an emphasis on articles from the past decade. The current guidelines and recommendations of specialty societies were also considered in the evaluation., Results: CUP most commonly manifests itself as metastases to the lymph nodes, lungs, liver, or bones. With the aid of imaging studies, including functional hybrid imaging and further medical examination, a primary tumor can be discovered in up to 40% of patients initially diagnosed with CUP. Immunohistochemistry guided by histomorphology often enables precise characterization of the lesion and can be supplemented, in selected cases, by molecular-genetic diagnostic evaluation. The most commonly detected types of primary tumor are cancers of the lung, pancreas, liver, and biliary system. For patients with local metastases, surgical resection or radiotherapy with curative intent is usually indicated, sometimes in the framework of a multimodal treatment concept. The median 2-year survival of patients with disseminated CUP is only 20%. For such patients, specific types of systemic therapy are recommended on the basis of the diagnostic characterization of the disease. Immune-modulatory antibodies can be effective, particularly in the treatment of CUP that has been characterized with biomarkers, but should still be considered experimental at present., Conclusion: A combination of conventional and innovative diagnostic methods enables the provision of highly refined therapeutic strategies to patients with CUP who are undergoing treatment in interdisciplinary cancer centers.

Purpose: To investigate the effect of daily exposure in utero to static magnetic fields during prenatal development on germ cell development and fertility of exposed offspring in adulthood., Materials and Methods: Mice were exposed daily in utero to different static magnetic field strengths at the bore entrance or in the isocenter of 1.5 T and 7 T MRI systems during the entire course of prenatal development., Results: In utero-exposed male mice revealed no effect of magnetic field strength on weight of testes and epididymis or on sperm count, sperm morphology, or fertility. Exposed pregnant female mice showed no reduced fertility in terms of pregnancy rates and litter size, pointing to a normal ovarian function. However, a reduced placental weight of offspring of intrauterine exposed female mice was observed that correlated with a decrease in embryonic weight in those animals exposed at the strongest magnetic field. This effect seemed to be parent-dependent, since it was not observed in those embryos fathered by in utero-exposed male mice., Conclusion: Repetitive in utero exposure to strong static magnetic fields does not impair fertility but may have a parental-dependent effect on fetal programming with regard to placental development and fetal growth., (Copyright © 2013 Wiley Periodicals, Inc.)

Purpose: To evaluate possible risks of strong static magnetic fields for embryo implantation, gestation, organogenesis, and embryonic development., Materials and Methods: Pregnant mice were exposed for 75 minutes daily during the entire course of pregnancy at the bore entrance, representing the position of medical staff, and at the isocenter, representing the position of patients, of a 1.5 T and a 7 T human MRI scanner., Results: No effect of static magnetic field strength was observed with regard to pregnancy rate, duration of pregnancy, litter size, still births, malformations, sex distribution, or postpartum death of offspring. During the first 8 weeks postnatal, mice exposed in utero to a magnetic field strength of 1.5 T or stronger showed a slight delay in weight gain and in time to eye opening compared to controls., Conclusion: Daily exposure to strong magnetic fields during pregnancy had no deleterious effect on offspring; however, a developmental retardation could be observed postnatally with regard to weight gain and eye opening., (Copyright © 2013 Wiley Periodicals, Inc.)

In the past three decades, magnetic resonance imaging (MRI) has been increasingly used in obstetrics to aid diagnostics of maternal and fetal conditions and has generally been considered a safe imaging method. However, the development of higher-performance systems employing, for example, stronger fields to improve the technique's diagnostic potential, necessitates on-going safety evaluation. Rodent studies provide an excellent opportunity to investigate not only acute but also long-term effects of magnetic field exposure in a systematic manner, and a behavioral analysis might help to uncover subtler effects which might result from magnetic field exposure of the vulnerable developing brain. We conducted a comprehensive investigation of emotional and cognitive behavior in adult mice which had been repeatedly exposed to a 7 Tesla static magnetic field in utero. Using well-validated tests, we did not observe any adverse behavioral alterations regarding emotional behavior as well as spatial and emotional learning., (Copyright © 2012 Elsevier Inc. All rights reserved.)