San Gabriel

Researchers are evaluating disitamab vedotin alone or combined with pembrolizumab to treat urothelial cancer that expresses HER2. This study focuses on participants with locally advanced or metastatic urothelial cancer that cannot be removed by surgery. It aims to assess how well the drug works and to monitor the side effects experienced by participants. Participants receive disitamab vedotin intravenously every 2 weeks, either alone or with pembrolizumab given by intravenous infusion on Day 1 of each 6-week cycle. The study includes multiple cohorts receiving different combinations or monotherapy treatments. The treatment period and monitoring last approximately 2 years, with ongoing assessments of drug effects and safety. During the study, participants undergo regular evaluations including imaging scans to measure tumor response, laboratory tests, electrocardiograms to monitor heart function, and assessments of side effects. Researchers measure treatment response using established cancer evaluation criteria and track survival and disease control over about 3 years. Participants are closely monitored for adverse effects and blood levels of the drugs to understand how the treatments behave in the body.

Researchers are comparing the rates of surgical and minimally invasive interventions, as well as any harms, in Medicare beneficiaries treated with the MILD procedure versus those treated with interspinous process decompression IPD for lumbar spinal stenosis with neurogenic claudication. This observational study uses Medicare claims data to follow patients for 24 months after their initial procedure starting from January 1, 2017. The purpose is to evaluate outcomes between these two types of procedures without requiring prior patient enrollment or consent. The study includes two groups patients who received MILD, which is a percutaneous image-guided lumbar decompression performed under fluoroscopic guidance through a dorsal approach to the spine, and patients who received IPD, a different device-based decompression procedure. Data on reoperations and complications will be collected for both groups over a 24-month follow-up period using Medicare claims. Enrollment continues until the sponsor decides to stop. Participants involvement is passive as the study uses existing Medicare claims data. Researchers will monitor rates of harms related to the initial procedure and subsequent surgical or minimally invasive interventions over two years. No direct patient visits or interventions are conducted, and the study is exempt from institutional review board oversight. The total study duration extends to December 2026, covering cases treated since early 2017.