View clinical trials related to Predictive Biomarkers.
Filter by:The study involves the coexistence of a retrospective part, in which a group of patients with HPV-associated OPC for whom follow-up data of at least 2 years after diagnosis are available, designed in order to evaluate the expression of HPV16-specific E5 transcript as well as that of pEGFR and HLA, and a multicenter prospective part, involving the enrollment of a control group, enrolled at the ENT outpatient clinic of the IRE and the outpatient clinics of the relevant LILT provincial committees, to better elucidate the role of HPV16-E5 in identifying potentially transforming infections due to the presence of HPV.
In the last decades, cancer treatment was based on surgery, radiotherapy and chemotherapy. Recently, treatments have largely evolved, first with targeted therapies (notably tyrosin kinase inhibitors, TKI) and then with immune checkpoint inhibitors (ICPI, notably anti-CTLA-4 and anti- PD1). The last ones can induce durable anti-tumoral responses in patients, even if metastases are present. Their mechanisms of action are focused on the activation of immune system in order to eliminate the tumor. ICPI, because of their mechanisms of action, target immune tolerance key components and can induce important immune toxicities (colitis, hepatitis, dermatitis, thyroiditis ...), leading to early discontinuation of treatment, severe or chronic morbidity, and can sometimes be lethal. It is of importance to detect patient at risk of irAEs, because of the increasing use of ICPI and the long- term response capacity in treated patients.
Backgrounds: A multicenter randomized phase III trial (NCT02605265) proved that adding irinotecan guided by UGT1A1 to capecitabine-based neoadjuvant chemoradiotherapy significantly increases complete tumor response. The treatment toxicities were increased but tolerable. Purposes: This study aims to identify the predictive biomarkers (from patients' tumor biopsy samples and peripheral blood samples before neoadjuvant therapy) for predicting the response and toxicities to neoadjuvant therapy to stratify patients and optimize treatment strategy.
Circulating tumor cells (CTCs) have prognostic value in several tumor types, and increasing evidence suggests that molecular characterization of CTCs can serve as a "liquid biopsy" to understand and address treatment resistance. The goal of this proposal is to demonstrate that CTCs can be accurately enumerated and characterized in metastatic clear cell renal cancer (CCRC) and can serve as prognostic/predictive biomarkers to improve treatment. The challenge surrounding CTC analysis in CCRC is that most CTC technologies (including the clinical gold-standard CellSearch®) depend in epithelial markers such as EpCAM that are expressed at low or heterogeneous levels in CCRC. Members of the research team have developed a novel CTC microfluidic technology that can effectively detect CTCs that are completely undetectable by CellSearch® because of very low EpCAM expression, as well as allowing for CTC recovery for downstream molecular characterization. The goal of this proposal is therefore to test the hypotheses that (1) The microfluidics CTC technology will have better sensitivity/specificity relative to the CellSearch in metastatic CCRC; and (2) Enumeration of CTCs in metastatic CCRC patients (n=66) will have prognostic value, while molecular characterization of CTCs for expression of biomarkers (VHL, VEGF, mTOR, HIF1/HIF2, AKT) related to CCRC etiology will be predictive of response/resistance to targeted therapies. Although CCRC is relatively uncommon, the lack of established adjuvant treatments and high cost of targeted therapies in the palliative setting makes the search for new prognostic/predictive biomarkers an important clinical goal.