Publications by authors named "Bitzer Michael"

Courses of SARS-CoV-2 infections are highly variable, ranging from asymptomatic to lethal COVID-19. Though research has shown that host genetic factors contribute to this variability, cohort-based joint analyses of variants from the entire allelic spectrum in individuals with confirmed SARS-CoV-2 infections are still lacking. Here, we present the results of whole genome sequencing in 1,220 mainly vaccine-naïve individuals with confirmed SARS-CoV-2 infection, including 827 hospitalized COVID-19 cases.

View Article and Find Full Text PDF

Background: Biomarker-based therapies are increasingly used in cancer patients outside clinical trials. Systematic assessment of patient-reported outcomes (PRO) is warranted to take patients' perspectives during biomarker-based therapies into consideration. We assessed the feasibility of an electronic PRO assessment via a smartphone application.

View Article and Find Full Text PDF
Article Synopsis
  • Scientists found a special DNA fusion called DNAJB1-PRKACA that causes a rare liver cancer called fibrolamellar carcinoma (FL-HCC), which mainly affects young people.
  • * FL-HCC has a low chance of survival, and surgery is the only way to cure it if it hasn't spread yet; there isn’t a standard medicine for other treatments.
  • * A new clinical trial, FusionVAC22_01, is testing a vaccine and an immune booster to help the body fight the cancer by improving the immune system's response against it.
View Article and Find Full Text PDF

Introduction: Colorectal cancer (CRC) is the third most common cancer worldwide in men and women. In the metastasized stage, treatment options and prognosis are limited. To address the high medical need of this patient population, we generated a CD276xCD3 bispecific antibody termed CC-3.

View Article and Find Full Text PDF

Purpose: Pemigatinib is a fibroblast growth factor receptor-2 (FGFR2) inhibitor approved for use in patients with previously treated cholangiocarcinoma (CCA) and FGFR2 fusions or rearrangements. This ongoing global Expanded Access Program (EAP) allows physicians in regions where pemigatinib is not commercially available to request pemigatinib for patients with locally advanced or metastatic CCA who, in the physician's opinion, could benefit from pemigatinib treatment.

Materials And Methods: Eighty-nine patients from Europe, North America, and Israel were treated from January 2020 through September 2021.

View Article and Find Full Text PDF

Fibroblast growth factor receptor (FGFR)-2 can be inhibited by FGFR-selective or non-selective tyrosine kinase inhibitors (TKIs). Selective TKIs are approved for cholangiocarcinoma (CCA) with FGFR2 fusions; however, their application is limited by a characteristic pattern of adverse events or evocation of kinase domain mutations. A comprehensive characterization of a patient cohort treated with the non-selective TKI lenvatinib reveals promising efficacy in FGFR2-driven CCA.

View Article and Find Full Text PDF

Objectives: T cell immunity is key for the control of viral infections including SARS-CoV-2, in particular with regard to immune memory and protection against arising genetic variants.

Methods: We recently evaluated a peptide-based SARS-CoV-2 T cell activator termed CoVac-1 in a first-in-human trial in healthy adults. Here, we report on long-term safety and efficacy data of CoVac-1 until month 12.

View Article and Find Full Text PDF

Cancer of unknown primary has a dismal prognosis, especially following failure of platinum-based chemotherapy. 10-20% of patients have a high tumor mutational burden (TMB), which predicts response to immunotherapy in many cancer types. In this prospective, non-randomized, open-label, multicenter Phase II trial (EudraCT 2018-004562-33; NCT04131621), patients relapsed or refractory after platinum-based chemotherapy received nivolumab and ipilimumab following TMB vs.

View Article and Find Full Text PDF

In-frame exon 12 deletions are increasingly identified in various tumor types. The resultant BRAF oncoproteins usually lack five amino acids in the β3-αC helix linker and sometimes contain de novo insertions. The dimerization status of BRAF oncoproteins, their precise pathomechanism, and their direct druggability by RAF inhibitors (RAFi) has been under debate.

View Article and Find Full Text PDF

Background: Deep metabolomic, proteomic and immunologic phenotyping of patients suffering from an infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have matched a wide diversity of clinical symptoms with potential biomarkers for coronavirus disease 2019 (COVID-19). Several studies have described the role of small as well as complex molecules such as metabolites, cytokines, chemokines and lipoproteins during infection and in recovered patients. In fact, after an acute SARS-CoV-2 viral infection almost 10-20% of patients experience persistent symptoms post 12 weeks of recovery defined as long-term COVID-19 syndrome (LTCS) or long post-acute COVID-19 syndrome (PACS).

View Article and Find Full Text PDF
Article Synopsis
  • Treatment concepts in oncology are becoming personalized and diverse, requiring continuous monitoring of patient care through real-world data, which the DKTK's Clinical Communication Platform (CCP) facilitates.
  • The CCP connects 14 cancer centers and analyzes data from over 600,000 patients, focusing on diverse demographic details, diagnoses, treatment responses, and extensive biosample collections.
  • Through its sizable and detailed dataset, the cohort aids translational cancer research, enhances understanding of various cancers, and supports clinical trial design and evaluation in real-world settings.
View Article and Find Full Text PDF

Background: The clinical utility of molecular profiling and targeted therapies for neuro-oncology patients outside of clinical trials is not established. We aimed at investigating feasibility and clinical utility of molecular profiling and targeted therapy in adult patients with advanced tumors in the nervous system within a prospective observational study.

Methods: molecular tumor board (MTB)@ZPM (NCT03503149) is a prospective observational precision medicine study for patients with advanced tumors.

View Article and Find Full Text PDF

Introduction: Stereotactic body radiotherapy (SBRT) is used to treat liver metastases with the intention of ablation. High local control rates were shown. Magnetic resonance imaging guided radiotherapy (MRgRT) provides the opportunity of a marker-less liver SBRT treatment due to the high soft tissue contrast.

View Article and Find Full Text PDF

Background: Regional hyperthermia (RHT) with cisplatin added to gemcitabine showed efficacy in gemcitabine-pre-treated patients with advanced pancreatic ductal adenocarcinoma. We conducted a randomised clinical trial to investigate RHT with cisplatin added to gemcitabine (GPH) compared with gemcitabine (G) in the adjuvant setting of resected pancreatic ductal adenocarcinoma.

Methods: This randomised, multicentre, open-label trial randomly assigned patients to either GPH (gemcitabine 1000 mg/m on day 1, 15 and cisplatin 25 mg/m with RHT on day 2, 3 and 15,16) or to G (gemcitabine 1000 mg/m on day 1,8,15), four-weekly over six cycles.

View Article and Find Full Text PDF
Article Synopsis
  • Zolbetuximab (IMAB362) is designed to enhance immune responses against cancer by inducing antibody-dependent cell-mediated cytotoxicity (ADCC) and complement-dependent cytotoxicity, with the study focusing on its effects when combined with immune-modulating drugs like zoledronic acid (ZA) and interleukin-2 (IL-2).
  • The phase 1 trial involved 28 patients with advanced gastric and gastroesophageal junction adenocarcinoma, testing zolbetuximab alone or in combination with ZA and various doses of IL-2 to evaluate safety, tolerability, and antitumor activity.
  • Results showed that while zolbetuximab alone effectively activated immune cells mediating ADCC, the combination
View Article and Find Full Text PDF

Several risk scores were developed during the COVID-19 pandemic to identify patients at risk for critical illness as a basic step to personalizing medicine even in pandemic circumstances. However, the generalizability of these scores with regard to different populations, clinical settings, healthcare systems, and new epidemiological circumstances is unknown. The aim of our study was to compare the predictive validity of qSOFA, CRB65, NEWS, COVID-GRAM, and 4C-Mortality score.

View Article and Find Full Text PDF