This Phase 4 trial evaluated the safety and tolerability of evolocumab (Repatha), a PCSK-9 inhibitor, in renal transplant recipients with hyperlipidemia. The study was led by Brigham and Women's Hospital and conducted across three hospitals in Boston, Massachusetts. Actual enrollment was 81 patients. The primary outcome was percent change in LDL cholesterol from baseline to 12 months.
The rationale reflects that cardiovascular disease is the leading cause of mortality after renal transplantation, accounting for more than 30% of deaths, and that immunosuppressive medications contribute to post-transplant hyperlipidemia. Statins remain standard of care but carry hepatic, muscular, proteinuric, and renal adverse-effect risks that are amplified by concomitant anti-rejection therapy in this population, creating a need for alternative lipid-lowering options. Prior evidence in transplant recipients is limited largely to the ALERT trial, which demonstrated a 21% reduction in major cardiac events (p=0.036) in an extension cohort of 1652 patients.
Quantitative results for the primary LDL-C endpoint and detailed safety or tolerability outcomes were not reported in the available data, so the magnitude of LDL reduction and the adverse-event profile in this population cannot be characterized from this source. Comparator arm details were not reported.
Key limitations include the absence of reported efficacy and safety data, the single-sponsor design with a confined geographic footprint, and enrollment that fell short of the originally planned 120 patients. Until full results are published, evolocumab use in renal transplant recipients should be regarded as investigational within this trial context.
View Original Abstract ↓
Status: COMPLETED | Phase: PHASE4
Condition(s): Hyperlipidemias
Intervention(s): Evolocumab (DRUG)
Cardiovascular disease is the leading cause of mortality after renal transplantation, accounting for more than 30% of deaths. Elevated lipid levels (hyperlipidemia) are a frequent finding following transplantation and the immunosuppressive medications play a central role in the development or worsening of hyperlipidemia. In the general population, the correlation between elevated serum cholesterol and increased risk of cardiovascular disease is well established and the reduction in serum LDL cholesterol has proved to significantly reduce both morbidity and mortality.
Statin based drugs are the standard of care in the management of hyperlipidemia. Commonly used statin-based drugs include atorvastatin (Lipitor), fluvastatin (Lescol, Lescol XL), lovastatin (Mevacor, Altoprev), pravastatin (Pravachol), rosuvastatin (Crestor), simvastatin (Zocor), and pitavastatin (Livalo). These drugs have been proven to lower lipid levels as well as cardiovascular risk. However, statin-based drugs also cause a variety of side effects. While the most commonly encountered side effects are toxicity to the liver and muscles, a few others have also been known to cause increased excretion of protein in the urine and kidney failure. These side effects are also more common in a renal transplant recipient due to the simultaneous administration of drugs that prevent rejection. Therefore, there is an emergent need for newer drugs which are both efficient and safe especially in this population PCSK-9 inhibitors (Proprotein Convertase Subtilisin Kinase-9 inhibitors) are a new class of drugs that are highly efficient in lowering lipid levels in the general population. However, an exclusive trial involving kidney transplant recipients is yet to be done. Through this study, we would like to evaluate the safety and tolerability of Evolocumab (trade name: Repatha) which is a PCSK-9 inhibitor developed by Amgen, Inc in renal transplant recipients. The study would involve a total of 120 patients across 3 different hospitals in Boston, Massachusetts.
Detailed: Cardiovascular disease is the leading cause of death in renal transplant recipients (RTR). 44% of RTR have LDL-C greater than 100mg/dL, six months after transplant. The correlation between the increase in serum LDL level and the increased risk of atherosclerotic cardiovascular disease (ASCVD) is well established. A reduction in LDL level is associated with a decreased risk of mortality and morbidity in patients with ASCVD. Statins have been the long-standing drug of choice in treating dyslipidemia. A single prospective randomized trial known as the ALERT trial compared the benefits of statins to placebo in transplant recipients. The original study consisted of 2000 RTR and an extension of this study evaluated 1652 patients and demonstrated a 21% reduction in major cardiac events (p=0.036)
Primary Outcome(s): Percent Change in LDL Cholesterol From Baseline to 12 Months
Enrollment: 81 (ACTUAL)
Lead Sponsor: Brigham and Women's Hospital
Start: 2021-02-17 | Primary Completion: 2024-01-11
Results posted: 2026-04-16