Treatment Locally Advanced Cancer

In this study, we want to learn how safe and effective the study drug, BAY2701439, is in patients with advanced cancer that has the protein HER2 (Human Epidermal growth factor Receptor 2) and cannot be cured by currently available treatment options.

Phase II Study of [68Ga]Ga-ABY-025 PET for Non-invasive Quantification of HER2-status in Solid Tumors

The goal of this phase II clinical trial is to improve the selection of patients with solid tumors who would benefit from effective treatment with HER2 targeted drugs. This will be achieved by examining patients with HER2 positive tumors in the esophagus or stomach or patients with advanced breast cancer with low HER2 expression (HER2low) with the HER2 specific positron emission tomography (PET) tracer ABY-025 (HER2-PET) and compare the imaging results with HER2 expression in tumor tissue derived from biopsies (reference standard).

68Ga-HER2 Affibody PET/CT Imaging for HER2-Positive Cancer Patients

The prevalence of HER2 alterations in pan-cancer indicates a broader range of application of HER2-targeted therapies. immunohistochemistry (IHC) or amplification by fluorescence in situ hybridization (FISH) is currently the most commonly used method for evaluation of HER-2 status in cancer patients. However, biopsies are spatiotemporally limited because of the highly heterogeneous expression of HER2. Patients with false-negative HER2 results may miss the chance for targeted therapy. Additionally, the HER2 status can change during the disease process. A investigational imaging tracer named 68Ga-HER2 Affibody binds to HER-2 receptors. Previous studies in human have shown the efficacy of 68Ga-HER2 Affibody in detecting HER2 positive breast cancer and gastric cancer without any observed toxicity. However, studies are still insufficient and limited to breast cancer and gastric cancer. The investigators hypothesized that 68Ga-HER2 Affibody PET imaging can noninvasively assess HER2 status in metastatic or recurrent solid tumors including breast cancer, gastrointestinal tumors, head and neck squamous tumors, bladder cancer, lung cancer and uterine tumors lesion. In this study, efficacy of 68Ga-HER2 Affibody in detecting HER2 positive cancer lesions and change of patient management based on 68Ga-HER2 Affibody PET will be determined.

PET Imaging of Tumors in Pancreas, Bile Ducts, Stomach and Ovaries by a Novel Tracer, 68Ga-FAPI-46 = Fibroblast Activation Protein Inhibitor

Cancers of the pancreas, bile ducts, stomach and ovaries are dismal diseases with most patients being diagnosed in advanced stages leading to a bad prognosis. These cancers can be difficult to diagnose and sometimes impossible to differentiate from underlying benign conditions. Establishing the correct diagnosis of primary cancer lesions and possible spread to other organs in time is pivotal for choosing the right therapy. Routinely applied staging procedures are however not always reliable. The main aim in this study is to evaluate the diagnostic accuracy of PET/CT with a novel radiotracer, FAPI, in the primary diagnosis of cancers in the pancreas, stomach and bile ducts as well as in patients with primary and recurrent epithelial ovarian cancer (EOC).