ADPKD Clinical Trial
Official title:
HYDROchlorothiazide to PROTECT Polycystic Kidney Disease Patients and Improve Their Quality of Life
Autosomal dominant polycystic kidney disease (ADPKD) is characterized by progressive formation of renal cysts which ultimately lead to a loss of renal function. Tolvaptan (a V2R antagonist) is currently the only effective treatment for preserving renal function in ADPKD. However, side-effects such as polyuria limit its tolerability and thereby the therapeutic potential. This study will test whether co-administration with hydochlorothiazide can improve V2RA efficacy (slowing kidney function decline) and tolerability (quality of life) in ADPKD. Approximately 300 patients will be enrolled.
Aims: The main objectives of the current study are to prospectively test whether HCT co-treatment can improve V2RA efficacy (slowing kidney function decline) and tolerability (quality of life) in PKD. Study design: Investigator driven randomized placebo-controlled multicenter trial Study population: 300 ADPKD patients of ≥18 years, with an eGFR of > 25 mL/min/1.73m2, on stable treatment with the highest tolerated dose of V2RA Intervention: Oral HCT 25 mg once daily or matching placebo for a total of 156 weeks. The randomization ratio will be 1:1. Study visit schedule: study measurements will be performed during 12-weekly visits (which is routine care for V2RA treated patients), except for one additional study visit (or telephone call) 2 weeks after the start of treatment Primary study outcome: Slope of kidney function decline (measured by eGFR) ;
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