Brookhaven

Researchers are evaluating the effects of felzartamab in adults with Immunoglobulin A nephropathy (IgAN), a kidney disease caused by the buildup of abnormal IgA antibodies in the kidneys. This buildup leads to inflammation and damage, causing protein to appear in the urine. The study aims to understand how felzartamab influences proteinuria and kidney function, while also assessing the safety and how the body processes this treatment. This is a Phase 3, randomized, double-blind, placebo-controlled study focusing on adults with IgAN. Participants will be randomly assigned to receive either felzartamab or a placebo through intravenous (IV) infusions. Neither the participants nor the researchers will know which treatment is given. The treatment period lasts 24 weeks followed by an 80-week follow-up period. In total, participants will attend 17 study visits over about 2 years to receive infusions and participate in study activities. During the study, participants will undergo assessments including urine tests to measure protein levels, kidney function evaluations, and safety monitoring. Researchers will track changes in proteinuria from the start of the study to Week 36 as the main outcome. Additional measurements will include kidney function, clinical endpoints, and the study of how felzartamab is processed by the body. Participant safety and long-term effects will be monitored throughout the study and follow-up periods.

Researchers are conducting a two-part, phase 2b/3 study to evaluate CSL300 (Clazakizumab) in adults with end stage kidney disease (ESKD) undergoing dialysis who have systemic inflammation and either atherosclerotic cardiovascular disease (ASCVD) or diabetes. The study aims to determine the best dose of CSL300 and assess its effects on cardiovascular outcomes and safety in this population. This multicenter, randomized, double-blind, placebo-controlled trial targets patients with elevated inflammation markers and significant health risks due to their conditions. In the first part (phase 2b), the study focuses on finding the appropriate dose of CSL300 compared to placebo. CSL300 is given through intravenous (IV) administration. The second part (phase 3) evaluates the impact of CSL300 on cardiovascular events such as heart attack or cardiovascular death over approximately 5 years, continuing to compare CSL300 to placebo for safety and efficacy. The placebo matches CSL300's excipient content but lacks the active drug. Participants will undergo baseline and regular assessments for inflammation markers like high-sensitivity C-reactive protein (hs-CRP) up to 12 weeks in phase 2b, and long-term monitoring for cardiovascular outcomes in phase 3. The study involves ongoing safety evaluations and efficacy measurements during the entire follow-up period. This comprehensive approach helps researchers understand how CSL300 affects inflammation and cardiovascular health in patients with ESKD on dialysis.

Researchers are evaluating surgical and minimally invasive treatments for lumbar spinal stenosis (LSS) by comparing Medicare patients who received the MILD procedure against those who had interspinous process decompression (IPD). The study focuses on outcomes such as the rate of harms related to the initial procedure and the frequency of additional surgical or minimally invasive interventions within 24 months after treatment. Enrollment includes patients treated from January 1, 2017, onward, with continuation until the sponsor decides to stop. The MILD procedure involves percutaneous image-guided lumbar decompression, performed under fluoroscopy through a dorsal approach to partially remove tissue and bone at the affected spinal level. The control group receives the IPD procedure for LSS. Both groups are monitored for a 24-month period post-index procedure using Medicare claims data to track reoperations and any harms. Participants contribute data through Medicare claims without needing prior enrollment or consent, as the study is exempt from IRB oversight. Researchers collect and analyze information on procedure-related harms and subsequent interventions over two years. This approach allows evaluation of long-term safety and effectiveness outcomes for patients treated with either MILD or IPD.

Researchers are evaluating the safety and effectiveness of up to two injections of REACT/rilparencel in adults with type 2 diabetes mellitus and chronic kidney disease. This phase 3 randomized controlled study divides participants into two groups to compare the effects of the actual treatment versus sham procedures mimicking kidney biopsy and injections. The goal is to monitor kidney function and clinical outcomes over time to understand the impact of this therapy on disease progression. Participants are randomly assigned before a kidney biopsy to either receive sham procedures or the real treatment involving a kidney biopsy followed by two rilparencel injections about 12 weeks apart, each into different kidneys. Those receiving sham procedures will undergo similar-sounding and looking activities without actual tissue removal or injection. All participants will be followed until the study's global end date, ensuring consistent long-term observation. During the study, participants will undergo kidney biopsies or sham procedures, followed by injections or sham injections. Researchers will assess kidney function by measuring the slope of estimated glomerular filtration rate (eGFR) over 18 months after the 135th participant's first injection or sham procedure. They will also track clinical events such as significant kidney function decline, need for dialysis or transplant, or renal and cardiovascular deaths for up to 94 months. Safety and efficacy will be monitored throughout the study to evaluate treatment impact.