HGG

The objective of this Master Protocol is to evaluate the efficacy and safety of plixorafenib in participants with BRAF altered (BRAF V600E or BRAF fusions) locally advanced or metastatic solid tumors, or recurrent or progressive primary central nervous system (CNS) tumors, including rare BRAF V600E-mutated solid tumors, including anaplastic thyroid, ovarian, cholangiocarcinoma or other rare cancers.

The primary objective of this study is to determine the safe dose range of NRG-103 in patients and to recommend the dosage for subsequent treatment, while also evaluating the preliminary efficacy and tolerability of the product.

High-grade gliomas (HGGs) are among the most aggressive and treatment-resistant brain tumors. Immunotherapy with checkpoint inhibitors like nivolumab has shown promise, but its efficacy remains variable and poorly understood in this patient population. This clinical trial investigates a novel imaging-enabled formulation of nivolumab-IRDye800 (nivo800) which incorporates a near-infrared (NIR) fluorescent dye to enable real-time visualization of drug distribution within tumor tissue.

The goal of this clinical trial is to evaluate the safety and feasibility of focused ultrasound (FUS)-mediated blood-brain barrier (BBB) disruption using the Next Generation Dome Helmet (NGDH) in adults with glioblastoma (GBM) undergoing the maintenance phase of the standard "Stupp protocol". Participants will: * Undergo repeated FUS BBB disruption treatments during the maintenance phase of temozolomide (TMZ) chemotherapy. * Receive intravenous ultrasound contrast (DEFINITY®) prior to each FUS session to facilitate targeted BBB disruption. * Undergo serial MRI scans and clinical assessments to evaluate safety and the extent of BBB opening. * Provide blood samples (and tumor tissue if available) for biomarker analysis related to BBB permeability, tumor presence, and treatment response. * Be followed for progression-free survival (PFS) and overall survival (OS) during routine neuro-oncology visits until end of life.