Study of Metformin to Slow Kidney Function Decline in Adults with Polycystic Kidney Disease Phase 3 Randomized Trial

What this Trial Is About

Researchers are evaluating whether metformin, a medication commonly used for diabetes, can be repurposed to slow kidney function decline in adults diagnosed with early-stage Autosomal Dominant Polycystic Kidney Disease ADPKD. ADPKD causes cyst growth in kidneys leading to pain, high blood pressure, chronic kidney disease, and reduced quality of life. This global Phase III randomized controlled trial aims to find effective, affordable treatments to reduce illness impact and improve life quality for ADPKD patients. Participants are randomly assigned to receive either extended-release metformin Metformin XR or a placebo, alongside standard care, for 104 weeks. The metformin dose ranges from 500 to 2000 mg daily based on individual tolerance and kidney function. The study includes a control group receiving identical placebo tablets for comparison. This design allows assessment of metformins effect on slowing disease progression. During the study, participants undergo regular monitoring including kidney function tests, assessment of kidney disease progression, quality of life questionnaires, and tracking of side effects and healthcare use over 24 months. The primary outcome is the change in estimated glomerular filtration rate eGFR. Secondary outcomes include kidney failure, mortality, medication dosing changes, and symptoms related to ADPKD. Safety and effectiveness are carefully followed throughout the trial period, which may last until 2030.

Implementation of Metformin theraPy to Ease Decline of Kidney Function in Polycystic Kidney Disease (IMPEDE-PKD)