Martin Schuler's research while affiliated with University of Duisburg-Essen and other places
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Publications (334)
Introduction: Sotorasib, a first-in-class KRASG12C inhibitor, has been FDA-approved for adults with KRAS p.G12C-mutated locally advanced or metastatic NSCLC who received prior systemic therapies based on the Phase 1/2 global, single-arm CodeBreaK100 trial. We will report the longest follow-up for a KRASG12C inhibitor, including 2-year survival, saf...
Background: KRAS G12C oncogenic mutations occur in ~13% of non-small cell lung cancers (NSCLCs) and up to 4% of other solid tumors. JDQ443 is a selective, covalent, orally bioavailable, investigational KRASG12C inhibitor that irreversibly traps KRASG12C in the inactive, GDP-bound state. JDQ443 is structurally unique and forms novel interactions wit...
Background:
Deregulation of FGF19-FGFR4 signaling is found in several cancers, including hepatocellular carcinoma (HCC), nominating it for therapeutic targeting. FGF401 is a potent, selective FGFR4 inhibitor with antitumor activity in preclinical models. This study was designed to determine the recommended phase 2 dose (RP2D), characterize PK/PD,...
Radiotherapy is an important modality in lung cancer treatment. Despite advances in treatment planning and dose delivery, patient benefit is still limited by in-field relapse and metastatic recurrence. Simultaneous application of cisplatinum-based chemotherapy leads to moderately improved outcomes, thus providing proof-of-concept for radiosensitiza...
Treatment concepts for patients with localized and locally advanced non-small cell lung cancer (NSCLC) are based on local treatment, surgery and/or radiotherapy, with curative intent. An adjuvant systemic treatment is added after primary resection of an operable NSCLC primarily to reduce the systemic risk of relapse. Locally advanced stages with me...
Introduction:
Previously, we developed a database of 693 patients with NSCLC and uncommon EGFR mutations treated with afatinib. Here, we provide an update of >1000 patients, with more data on specific mutations.
Methods:
Patients were identified from a prospective database developed by Boehringer Ingelheim and via literature review. Mutations we...
Introduction
Rebiopsies of non-small cell lung cancers (NSCLC) are mainly performed to (i) cover the evolution of potentially amenable resistance mechanisms against a targeted therapy, and (ii) to identify new therapeutic targets which were not detected in the initial diagnostic biopsy. Comprehensive systematic analyses evaluating the value of rebi...
Purpose:
Enhanced MAPK pathway signaling and cell cycle checkpoint dysregulation are frequent in NRAS-mutant melanoma and, as such, the regimen of the MEK inhibitor binimetinib and the selective CDK4/6 inhibitor ribociclib is a rational combination.
Experimental design:
This is a phase Ib/II, open-label study of ribociclib + binimetinib in patie...
Purpose. Despite that early integration of palliative care is recommended in advanced cancer patients, referrals to specialised palliative care (SPC) frequently occur late. Well-defined referral criteria are still missing. We analysed indicators associated with early (ER) and late referral (LR) to SPC of a high volume outpatient unit of a German co...
360490
Background: KRAS mutation is present in 90% of pancreatic ductal adenocarcinomas with p.G12C accounting for 1% to 2% of these mutations. Sotorasib, a small molecule that specifically and irreversibly inhibits KRAS G12C , has been investigated in the CodeBreaK100 trial in patients with KRAS G12C -mutated advanced solid tumors. Herein, we repo...
Background
Inhibitors of the cyclin-dependent kinases 4 and 6 (CDK4/6i) have significantly improved clinical outcomes in patients with advanced hormone receptor-positive (HR+) breast cancer and have demonstrated favourable antitumour immune responses in preclinical studies.
Methods
Here, we investigated peripheral immune responses to ribociclib in...
Background
Immune checkpoint inhibitors (ICIs) are currently one of the most promising therapy options in the field of oncology. Although the first pivotal ICI trial results were published in 2011, few biomarkers exist to predict their therapy outcome. PD-L1 expression and tumor mutational burden (TMB) were proven to be sometimes-unreliable biomark...
Introduction
Lors de l’étude d’enregistrement de phase II CodeBreaK 100, le sotorasib a permis d’obtenir un taux de réponse objective (TRO) de 37,1 % (IC à 95 % : 28,6 ; 46,2), avec une survie sans progression (SSP) médiane de 6,8 mois (IC à 95 % : 5,1 ; 8,2) chez les patients ayant un cancer du poumon non à petites cellules (CPNPC) avec mutation K...
Background
Radiology is the current standard for monitoring treatment responses in lung cancer. Limited sensitivity, exposure to ionizing radiations and related sequelae constitute some of its major limitation. Non-invasive and highly sensitive methods for early detection of treatment failures and resistance-associated disease progression would hav...
The German Cancer Consortium (Deutsches Konsortium für Translationale Krebsforschung, DKTK) unites the German Cancer Research Center in Heidelberg and selected key oncology centers of German Cancer Aid. This strategic collaboration of leading scientists aims to strengthen the international position of German healthcare research and improve its attr...
Background
Growth and differentiation factor 15 (GDF-15) is a TGF-β superfamily member physiologically expressed mainly in placenta and linked to feto-maternal tolerance. Under pathophysiologic conditions, prevention of excessive immune cell infiltration during tissue damage and cachexia induction have been ascribed to GDF-15. Recent research has t...
Introduction: Mutant RAS guanosine triphosphate hydrolases (GTPases) are key oncogenic drivers in many cancers. The KRASG12C variant has recently become targetable by a new drug class specifically locking KRASG12C in its inactive guanosine diphosphate (GDP)-bound state. Clinical activity was demonstrated in patients with advanced lung cancers harbo...
Purpose:
The aim of this study was to compare the pattern of intra-patient spread of lymph-node (LN)-metastases within the mediastinum as assessed by 18F-FDG PET/CT and systematic endobronchial ultrasound-guided transbronchial-needle aspiration (EBUS-TBNA) for precise target volume definition in stage III NSCLC.
Methods:
This is a single-center...
The tumor immune microenvironment (TME) represents a key determinant for responses to cancer treatment. However, the immune phenotype of highly proliferative gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) is still largely elusive. In this retrospective study, we characterized the TME of high-grade (G3, Ki-67 > 20%) GEP-NEN. We analyzed f...
Introduction: Fibroblast activation protein (FAP) is overexpressed in several solid tumors and therefore represents an attractive target for radiotheranostic applications. Recent investigations demonstrated rapid and high uptake of small-molecule inhibitors of FAP (68Ga-FAPI-46) for PET imaging. Here, we report our initial experience in terms of fe...
Motivation
Haplotype phasing approaches have been shown to improve accuracy of the search space of neoantigen prediction by determining if adjacent variants are located on the same chromosomal copy. However, the aneuploid nature of cancer cells as well as the admixture of different clones in tumor bulk sequencing data are challenging the current di...
In early-stage lung cancer, recurrences are observed even after curative resection. Neoadjuvant immunotherapy might be a promising approach to eliminate micrometastasis and to potentially reduce recurrence rates and improve survival. Early trials have shown encouraging rates of pathologic response to neoadjuvant therapy and have demonstrated that s...
Purpose/introduction
[¹⁸F]FDG-PET/CT is the standard imaging-technique for radiation treatment (RT) planning in locally advanced non-small cell lung cancer (NSCLC). The purpose of this study was to examine the additional value of endobronchial-ultrasound transbronchial needle aspiration (EBUS-TBNA) to standard PET/CT for mediastinal lymph-node (LN)...
![Fig. 3 A-E true positive lymph node: [ 18 F]FDG PET/CT: male, age 58...](publication/353398568/figure/fig2/AS:1048602528997378@1627017733285/A-E-true-positive-lymph-node-18-FFDG-PET-CT-male-age-58-years-LCNEC-pT3-pN1-1-11_Q320.jpg)
![Results from histopathology and [ 18 F]FDG PET/CT including...](publication/353398568/figure/tbl1/AS:1048602528993281@1627017733366/Results-from-histopathology-and-18-FFDG-PET-CT-including-sensitivity-specificity_Q320.jpg)
Background
Large cell neuroendocrine carcinoma of the lung (LCNEC) is a rare entity occurring in less than 4% of all lung cancers. Due to its low differentiation and high glucose transporter 1 (GLUT1) expression, LCNEC demonstrates an increased glucose turnover. Thus, PET/CT with 2-[ ¹⁸ F]-fluoro-deoxyglucose ([ ¹⁸ F]FDG) is suitable for LCNEC stag...
Background
Sotorasib showed anticancer activity in patients with KRAS p.G12C–mutated advanced solid tumors in a phase 1 study, and particularly promising anticancer activity was observed in a subgroup of patients with non–small-cell lung cancer (NSCLC).
Methods
In a single-group, phase 2 trial, we investigated the activity of sotorasib, administer...
Background
Oncogenic alterations in RET represent important therapeutic targets in thyroid cancer. We aimed to assess the safety and antitumour activity of pralsetinib, a highly potent, selective RET inhibitor, in patients with RET-altered thyroid cancers.
Methods
ARROW, a phase 1/2, open-label study done in 13 countries across 71 sites in communi...
3566
Background: Patients (pts) with mCRC progressing on standard chemotherapy have limited therapeutic options. Trifluridine/tipiracil (TAS102) significantly improved survival in patients with refractory mCRC. Ramucirumab (ram) is approved in combination with FOLFIRI for second-line treatment. There is a strong rationale to evaluate the efficacy a...
4081
Background: FGFR alts (mutations and fusions) have been reported in multiple advanced solid tumors at varying frequencies. These alts may function as oncogenic drivers of disease independent of the underlying tumor type. RAGNAR is an ongoing phase 2, histology-agnostic trial investigating the efficacy and safety of erdafitinib, a selective pan...
Purpose/Objective(s): The aim of this follow-up analysis of the ESPATUE phase-3 trial was to explore the prognostic value of post-induction chemotherapy PET metrics in patients with stage III non-small cell lung cancer (NSCLC) who were assigned to receive definitive chemoradiotherapy. Materials/Methods: All eligible patients stage IIIA (cN2) and st...
3079
Background: RET fusions are targetable oncogenic drivers in multiple solid tumor types. ARROW study (NCT03037385) data supported the US FDA approval of pralsetinib, a once-daily (QD) oral highly potent and selective RET inhibitor, for RET-altered metastatic non-small cell lung cancer (NSCLC) and advanced/metastatic thyroid cancer. Here we prov...
9003
Background: In the registrational phase 2 CodeBreaK 100 trial, sotorasib demonstrated an objective response rate (ORR) of 37.1% (95% Cl: 28.6, 46.2) and a median progression-free survival (PFS) of 6.8 months (95% Cl: 5.1, 8.2) in patients with pretreated KRAS p.G12C mutated non-small cell lung cancer (NSCLC). Tumor response was observed in pat...
TPS2658
Background: Growth and differentiation factor 15 (GDF-15) is a TGF-β superfamily member physiologically expressed mainly in placenta and linked to feto-maternal tolerance. Under pathophysiologic conditions, prevention of excessive immune cell infiltration during tissue damage and cachexia induction have been ascribed to GDF-15. A recent stu...
Cetuximab-based chemoimmunotherapy has been the standard of care for recurrent or metastatic squamous cell carcinoma of the head and neck (r/m SCCHN) for more than a decade. To date, no predictive or prognostic biomarkers have been established to further guide the systemic treatment with cetuximab-based chemoimmunotherapy in r/m SCCHN. Against this...
Background:
Large cell neuroendocrine carcinomas of the lung (LCNEC) is a rare entity occurring in less than 4% of all lung cancers. Due to its low differentiation and high glucose transporter 1 (GLUT1) expression LCNEC demonstrates an increased glucose turnover. Thus, PET/CT with 2-[¹⁸F]-fluoro-deoxyglucose (FDG) is suitable for LCNEC staging. Sur...
Objective
BRAF mutations have been subtyped in three functional classes with different oncogenic modes of action. The clinical impact of BRAF mutational subtypes in non–small-cell lung cancer (NSCLC) remains to be defined. So far, ambiguous results were reported from analyses of heterogeneous patient cohorts.
Methods
We studied patients with metas...
Introduction: Bone and soft tissue sarcomas express fibroblast activation protein (FAP) on tumor cells and associated fibroblast. Therefore, FAP is a promising therapeutic and diagnostic target. Novel radio-labelled FAP-Inhibitors (e.g. 68Ga-FAPI46) have shown high tumor uptake in positron emission tomography (PET) in sarcoma patients. Here we repo...
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Thymic epithelial tumors are the most common mediastinal tumors. Surgery is the mainstay of treatment and complete resection provides the best survival rate. However, advanced tumors often require multimodality treatment and thus we analyzed the prognostic potential of routine circulating biomarkers that might help to risk-stratify patients beyond...
Colorectal cancer (CRC) is one of the most frequent malignancies worldwide. Despite considerable progress in early detection and treatment, there is still an unmet need for novel anti-tumor therapies, particularly in advanced CRC. Regulatory T cells (Tregs) are increased in the peripheral blood and tumor tissue of CRC patients. Recently, transient...
Background
Pemetrexed and cisplatin is a first-line standard in non-squamous non-small-cell lung cancer without targetable mutations. It became the backbone of checkpoint-inhibitor–chemotherapy combinations. Single high doses of cisplatin pose toxicity risks and require hyperhydration, potentially prolonging outpatient application. The aim of this...
BackgroundCUP is a metastasized oncologic disease with unknown primary. In Germany 2–4% of all newly diagnosed cases of cancer belong to this heterogeneous group. Especially patients with disseminate metastasized CUP have a poor prognosis.AimThis review summarizes the current standard of systemic therapy in cancer of unknown primary and presents po...
Introduction: RIBECCA is a national, multi-center, open-label, single-arm phase IIIb trial assessing the efficacy and safety of ribociclib in combination with letrozole in a patient population similar to the populations of MONALEESA-2, -3 and -7, including premenopausal and postmenopausal patients without pretreatment as well as patients with up to...
Identifying patients with locally advanced head and neck carcinoma on high risk of recurrence after definitive concurrent radiochemotherapy is of key importance for the selection for consolidation therapy and for individualized treatment intensification. In this multicenter study we analyzed recurrence-associated single-nucleotide polymorphisms (SN...
Background
With improvement of cancer-specific survival, comorbidities and treatment-related side effects, particularly cardiovascular toxicities, need close attention. The aim of the present study was to evaluate clinical characteristics and outcomes of cancer patients requiring coronary angiography during inpatient care.Methods
We performed a ret...
467
Background: Recent tumor-agnostic drug approvals have resulted in a paradigm shift in cancer treatment away from organ/histology specific indications to biomarker-guided tumor-agnostic approaches. Pralsetinib is a potent and selective RET inhibitor, which has recently been approved by the U.S. Food and Drug Administration (FDA) for the treatmen...
TPS480
Background: The pan- FGFR tyrosine kinase inhibitor erdafitinib is approved by the US Food and Drug Administration for adults with locally advanced or metastatic urothelial carcinoma and susceptible FGFR3/2 genetic alterations who have progressed during or after ≥ 1 line of prior platinum-containing chemotherapy. FGFR gene alterations are po...
Lung cancer mortality largely results from metastasis. Despite curative surgery many patients with early-stage non-small cell lung cancer ultimately succumb to metastatic relapse. Current risk reduction strategies based on cytotoxic chemotherapy and radiation have only modest activity. Against this background, we functionally screened for novel met...
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 th...
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 NSCL...
Background
The pan-FGFR tyrosine kinase inhibitor erdafitinib is approved by the US Food and Drug Administration for adults with locally advanced or metastatic urothelial carcinoma and susceptible FGFR3/2 alterations who have progressed during or after ≥ 1 line of platinum-containing chemotherapy. FGFR alterations are potential oncogenic drivers th...
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 tum...
Background: tyrosine kinase inhibitor (TKI) treatment is highly effective in -mutant NSCLC. However, resistance to treatment inevitably develops. Multiple mechanisms of resistance to TKIs have been described. Besides secondary mutations, RAS/MEK pathway activation through different mechanisms has been found in cell models and in patients, resulting...
Background: Neoantigens arising from somatic mutations are attractive targets for cancer immunotherapy as they may be recognized as foreign by the immune system. RO7198457, a systemically administered RNA-Lipoplex iNeST was designed to stimulate T cell responses against neoantigens. A first-in-human Phase Ib study of RO7198457, in combination with...
PurposeDiagnosis and treatment of breast cancer have changed profoundly over the past 25 years. The outcome improved dramatically and was well quantified for early stage breast cancer (EBC). However, progress in the treatment of metastatic disease has been less convincingly demonstrated. We have studied survival data of patients with metastatic bre...
109
Background: RET gene fusions are targetable oncogenic drivers in multiple tumor types, including up to 20% of papillary thyroid cancers (PTC). Pralsetinib is an investigational, highly potent, selective inhibitor of oncogenic RET alterations. In the registration-enabling Phase 1/2 ARROW study (NCT03037385), pralsetinib demonstrated an overall r...
3640
Background: LTT462 is an investigational small molecule inhibitor of ERK1/2, which has demonstrated preclinical activity in multiple MAPK activated cancer cells and xenograft models. This first-in-human study was designed to evaluate the safety and tolerability of LTT462 in advanced solid tumors harboring MAPK pathway alterations (NCT02711345)...
Understanding tumor resistance to T cell immunotherapies is critical to improve patient outcomes. Our study revealed a role for transcriptional suppression of the tumor-intrinsic HLA class I (HLA-I) antigen processing and presentation machinery (APM) in therapy resistance. Low HLA-I APM mRNA levels in melanoma metastases prior to immune checkpoint...
The PIKTAM study evaluated the efficacy and safety of the PI3K inhibitor buparlisib in combination with tamoxifen in hormone receptor‐positive (HR⁺), HER2‐negative advanced breast cancer patients after failure of prior endocrine therapy. In this open‐label, single‐arm phase II trial, 25 patients were enrolled in 11 sites in Germany. Patients were s...
