Status:

RECRUITING

Indapamide and Chlorthalidone to Reduce Urine Supersaturation for Kidney Stone Prevention

Lead Sponsor:

Insel Gruppe AG, University Hospital Bern

Collaborating Sponsors:

Department of clinical research, Bern

Conditions:

Kidney Stone

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

The aim of this study is to test the efficacy of the two long-acting thiazide-like diuretics indapamide and chlorthalidone in reducing urine supersaturation for calcium oxalate and calcium phosphate c...

Detailed Description

Background and Rationale: Kidney stones are the most common condition affecting the kidney. Both prevalence and incidence are increasing rapidly, driven by global warming, urbanization, dietary habit...

Eligibility Criteria

Inclusion

  • Inclusion criteria:
  • Written, informed consent.
  • Age 18 years or older.
  • Recurrent kidney stone disease (≥2 kidney stone episodes in the last 10 years prior to randomisation).
  • Past kidney stone containing ≥50 % CaOx, CaP, or a mixture of both.
  • Exclusion criteria:
  • Patients with secondary causes of recurrent calcium kidney stones including severe eating disorders (anorexia or bulimia), chronic bowel disease, intestinal or bariatric surgery, sarcoidosis, primary hyperparathyroidism, chronic urinary tract infection.
  • Patients with the following medications: Thiazide or loop diuretics, carbonic anhydrase inhibitors (including topiramate), xanthine oxidase inhibitors, alkali, active vitamin D (calcitriol or similar), calcium supplementation, bisphosphonates, denusomab, teriparatide, sodium-glucose co-transporter 2 (SGLT2) inhibitors, strong CYP3A4 inhibitors or inducers (may affect indapamide metabolism), lithium (To be eligible for study participation, patients taking any of the above listed medications at screening must be willing to discontinue these medications at least 28 days before randomization).
  • Patients with chronic kidney disease (defined as CKD-EPI eGFR \<30 mL/min).
  • Patients with glomerulonephritis.
  • Patients with the following biochemical imbalances: severe hypercalcemia (\>2.8 mmol/L), therapy-resistant hypokalemia or conditions with increased potassium loss, severe hyponatremia (\<130 mmol/L), symptomatic hyperuricemia.
  • Patients with hepatic encephalopathy or severe liver insufficiency.
  • Patients with severe cardiac insufficiency.
  • Patient with a recent cerebrovascular event.
  • Patients with a solid organ transplant.
  • Pregnant and lactating women (A urine pregnancy test must be performed for women of child-bearing potential, defined as women who are not surgically sterilized/hysterectomized, and/or who are postmenopausal for less than 12 months).
  • Previous (within 3 months prior to randomization) or concomitant participation in another interventional clinical trial.
  • Previous participation in INDAPACHLOR.
  • Inability to understand and follow the protocol.
  • Allergy to any one of the study drugs.

Exclusion

    Key Trial Info

    Start Date :

    October 1 2024

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    June 30 2027

    Estimated Enrollment :

    99 Patients enrolled

    Trial Details

    Trial ID

    NCT06111885

    Start Date

    October 1 2024

    End Date

    June 30 2027

    Last Update

    February 19 2025

    Active Locations (1)

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    1

    Inselspital, Department of Nephrology and Hypertension

    Bern, Switzerland, 3010