Florissant

Researchers are evaluating the safety and effects of the study medicine PF-07248144 combined with fulvestrant for treating hormone receptor-positive, HER2-negative advanced or metastatic breast cancer. This study focuses on participants whose breast cancer has worsened after prior treatment with CDK46 inhibitor-based therapy. The trial compares PF-07248144 plus fulvestrant to the current standard treatment involving everolimus and endocrine therapy. Participants will be randomly assigned to one of two groups. One group will take PF-07248144 tablets daily at home in 28-day cycles along with fulvestrant injections administered at the clinic. The other group will receive everolimus tablets daily plus either exemestane tablets or fulvestrant injections, based on the study doctors choice. Treatments will continue according to the schedule for each participant. During the study, participants will undergo regular evaluations including scans to measure tumor response, lab tests, electrocardiograms, and monitoring of side effects. Researchers will track progression-free survival up to about two years, as well as overall survival and response duration up to about five years. Safety and drug levels will also be monitored throughout and after treatment. The total duration of participation may span several years depending on individual outcomes.

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.

Researchers are studying the effects of the medicine PF-08634404, given alone or with another antibody called ipilimumab, for treating advanced liver cancer known as hepatocellular carcinoma HCC that cannot be removed by surgery or has spread to other parts of the body. This is a clinical trial that includes adults aged 18 years or older who have locally advanced or metastatic HCC and have not received whole-body treatment for this cancer. Participants will be randomly assigned to receive either PF-08634404 alone or PF-08634404 combined with ipilimumab. Both medicines are given through intravenous IV infusions directly into a vein. The study involves sequential dose levels and will be conducted at clinical trial sites where medical staff will monitor participants during and after treatment visits. During the study, participants will be monitored for side effects and overall response to treatment. Researchers will evaluate safety, pharmacokinetics, and preliminary efficacy by measuring adverse events, dose-limiting toxicities, and tumor response using RECIST 1.1 criteria. Laboratory tests and immunological assessments will be performed up to approximately 24 months to understand how the medicines behave in the body and their effects on the cancer.

Researchers are evaluating a new medicine called PF-08634404 for adults with locally advanced or metastatic urothelial cancer, a type of bladder cancer that has spread to nearby tissues or other parts of the body. The study aims to assess the safety, effectiveness, how the medicine moves through the body, and its impact on cancer-related markers. This is a Phase 1B2 treatment study sponsored by Pfizer. Participants are divided into two groups Cohort A includes those who have already received treatment and will receive PF-08634404 alone, while Cohort B includes untreated participants who will receive PF-08634404 combined with another cancer medicine called enfortumab vedotin. Both study medicines are given through an intravenous infusion. Treatment continues as long as it is beneficial and side effects are manageable. Before starting treatment, participants undergo a screening period to confirm eligibility. During the study, they have regular visits for treatment, health assessments, and tests to monitor cancer response, including scans. If the cancer worsens but treatment still helps and side effects are manageable, participants may continue treatment with approval. The study tracks outcomes such as tumor response, adverse events, survival, and drug levels over up to three years.